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536 lines
19 KiB
C
536 lines
19 KiB
C
/* $Id: tif_dirinfo.c,v 1.1 2005-06-17 13:54:52 vp153 Exp $ */
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/*
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* Copyright (c) 1988-1997 Sam Leffler
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* Copyright (c) 1991-1997 Silicon Graphics, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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/*
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* TIFF Library.
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*
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* Core Directory Tag Support.
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*/
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#include "tiffiop.h"
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#include <stdlib.h>
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#include <stdio.h>
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/*
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* NB: NB: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG.
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* If a tag can have both LONG and SHORT types
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* then the LONG must be placed before the SHORT for
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* writing to work properly.
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*
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* NOTE: The second field (field_readcount) and third field (field_writecount)
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* sometimes use the values TIFF_VARIABLE (-1), TIFF_VARIABLE2 (-3)
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* and TIFFTAG_SPP (-2). The macros should be used but would throw off
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* the formatting of the code, so please interprete the -1, -2 and -3
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* values accordingly.
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*/
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#ifndef VMS
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static
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#endif
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const TIFFFieldInfo tiffFieldInfo[] = {
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{ TIFFTAG_SUBFILETYPE, 1, 1, TIFF_LONG, FIELD_SUBFILETYPE,
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TRUE, FALSE, "SubfileType" },
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/* XXX SHORT for compatibility w/ old versions of the library */
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{ TIFFTAG_SUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE,
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TRUE, FALSE, "SubfileType" },
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{ TIFFTAG_OSUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE,
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TRUE, FALSE, "OldSubfileType" },
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{ TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS,
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FALSE, FALSE, "ImageWidth" },
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{ TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS,
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FALSE, FALSE, "ImageWidth" },
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{ TIFFTAG_IMAGELENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS,
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TRUE, FALSE, "ImageLength" },
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{ TIFFTAG_IMAGELENGTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS,
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TRUE, FALSE, "ImageLength" },
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{ TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_SHORT, FIELD_BITSPERSAMPLE,
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FALSE, FALSE, "BitsPerSample" },
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/* XXX LONG for compatibility with some broken TIFF writers */
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{ TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_LONG, FIELD_BITSPERSAMPLE,
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FALSE, FALSE, "BitsPerSample" },
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{ TIFFTAG_COMPRESSION, -1, 1, TIFF_SHORT, FIELD_COMPRESSION,
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FALSE, FALSE, "Compression" },
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/* XXX LONG for compatibility with some broken TIFF writers */
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{ TIFFTAG_COMPRESSION, -1, 1, TIFF_LONG, FIELD_COMPRESSION,
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FALSE, FALSE, "Compression" },
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{ TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, FIELD_PHOTOMETRIC,
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FALSE, FALSE, "PhotometricInterpretation" },
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/* XXX LONG for compatibility with some broken TIFF writers */
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{ TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_LONG, FIELD_PHOTOMETRIC,
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FALSE, FALSE, "PhotometricInterpretation" },
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{ TIFFTAG_THRESHHOLDING, 1, 1, TIFF_SHORT, FIELD_THRESHHOLDING,
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TRUE, FALSE, "Threshholding" },
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{ TIFFTAG_CELLWIDTH, 1, 1, TIFF_SHORT, FIELD_IGNORE,
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TRUE, FALSE, "CellWidth" },
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{ TIFFTAG_CELLLENGTH, 1, 1, TIFF_SHORT, FIELD_IGNORE,
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TRUE, FALSE, "CellLength" },
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{ TIFFTAG_FILLORDER, 1, 1, TIFF_SHORT, FIELD_FILLORDER,
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FALSE, FALSE, "FillOrder" },
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{ TIFFTAG_DOCUMENTNAME, -1,-1, TIFF_ASCII, FIELD_DOCUMENTNAME,
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TRUE, FALSE, "DocumentName" },
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{ TIFFTAG_IMAGEDESCRIPTION, -1,-1, TIFF_ASCII, FIELD_IMAGEDESCRIPTION,
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TRUE, FALSE, "ImageDescription" },
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{ TIFFTAG_MAKE, -1,-1, TIFF_ASCII, FIELD_MAKE,
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TRUE, FALSE, "Make" },
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{ TIFFTAG_MODEL, -1,-1, TIFF_ASCII, FIELD_MODEL,
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TRUE, FALSE, "Model" },
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{ TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_LONG, FIELD_STRIPOFFSETS,
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FALSE, FALSE, "StripOffsets" },
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{ TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_SHORT, FIELD_STRIPOFFSETS,
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FALSE, FALSE, "StripOffsets" },
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{ TIFFTAG_ORIENTATION, 1, 1, TIFF_SHORT, FIELD_ORIENTATION,
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FALSE, FALSE, "Orientation" },
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{ TIFFTAG_SAMPLESPERPIXEL, 1, 1, TIFF_SHORT, FIELD_SAMPLESPERPIXEL,
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FALSE, FALSE, "SamplesPerPixel" },
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{ TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_LONG, FIELD_ROWSPERSTRIP,
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FALSE, FALSE, "RowsPerStrip" },
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{ TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_SHORT, FIELD_ROWSPERSTRIP,
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FALSE, FALSE, "RowsPerStrip" },
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{ TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
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FALSE, FALSE, "StripByteCounts" },
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{ TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
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FALSE, FALSE, "StripByteCounts" },
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{ TIFFTAG_MINSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MINSAMPLEVALUE,
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TRUE, FALSE, "MinSampleValue" },
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{ TIFFTAG_MAXSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MAXSAMPLEVALUE,
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TRUE, FALSE, "MaxSampleValue" },
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{ TIFFTAG_XRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION,
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FALSE, FALSE, "XResolution" },
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{ TIFFTAG_YRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION,
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FALSE, FALSE, "YResolution" },
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{ TIFFTAG_PLANARCONFIG, 1, 1, TIFF_SHORT, FIELD_PLANARCONFIG,
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FALSE, FALSE, "PlanarConfiguration" },
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{ TIFFTAG_PAGENAME, -1,-1, TIFF_ASCII, FIELD_PAGENAME,
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TRUE, FALSE, "PageName" },
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{ TIFFTAG_XPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION,
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TRUE, FALSE, "XPosition" },
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{ TIFFTAG_YPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION,
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TRUE, FALSE, "YPosition" },
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{ TIFFTAG_FREEOFFSETS, -1,-1, TIFF_LONG, FIELD_IGNORE,
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FALSE, FALSE, "FreeOffsets" },
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{ TIFFTAG_FREEBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_IGNORE,
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FALSE, FALSE, "FreeByteCounts" },
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{ TIFFTAG_GRAYRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE,
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TRUE, FALSE, "GrayResponseUnit" },
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{ TIFFTAG_GRAYRESPONSECURVE,-1,-1, TIFF_SHORT, FIELD_IGNORE,
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TRUE, FALSE, "GrayResponseCurve" },
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{ TIFFTAG_RESOLUTIONUNIT, 1, 1, TIFF_SHORT, FIELD_RESOLUTIONUNIT,
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FALSE, FALSE, "ResolutionUnit" },
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{ TIFFTAG_PAGENUMBER, 2, 2, TIFF_SHORT, FIELD_PAGENUMBER,
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TRUE, FALSE, "PageNumber" },
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{ TIFFTAG_COLORRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE,
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TRUE, FALSE, "ColorResponseUnit" },
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{ TIFFTAG_TRANSFERFUNCTION, -1,-1, TIFF_SHORT, FIELD_TRANSFERFUNCTION,
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TRUE, FALSE, "TransferFunction" },
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{ TIFFTAG_SOFTWARE, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
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TRUE, FALSE, "Software" },
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{ TIFFTAG_DATETIME, 20,20, TIFF_ASCII, FIELD_DATETIME,
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TRUE, FALSE, "DateTime" },
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{ TIFFTAG_ARTIST, -1,-1, TIFF_ASCII, FIELD_ARTIST,
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TRUE, FALSE, "Artist" },
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{ TIFFTAG_HOSTCOMPUTER, -1,-1, TIFF_ASCII, FIELD_HOSTCOMPUTER,
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TRUE, FALSE, "HostComputer" },
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{ TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL,FIELD_WHITEPOINT,
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TRUE, FALSE, "WhitePoint" },
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{ TIFFTAG_PRIMARYCHROMATICITIES,6,6,TIFF_RATIONAL,FIELD_PRIMARYCHROMAS,
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TRUE, FALSE, "PrimaryChromaticities" },
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{ TIFFTAG_COLORMAP, -1,-1, TIFF_SHORT, FIELD_COLORMAP,
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TRUE, FALSE, "ColorMap" },
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{ TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, FIELD_HALFTONEHINTS,
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TRUE, FALSE, "HalftoneHints" },
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{ TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
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FALSE, FALSE, "TileWidth" },
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{ TIFFTAG_TILEWIDTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
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FALSE, FALSE, "TileWidth" },
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{ TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
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FALSE, FALSE, "TileLength" },
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{ TIFFTAG_TILELENGTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
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FALSE, FALSE, "TileLength" },
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{ TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG, FIELD_STRIPOFFSETS,
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FALSE, FALSE, "TileOffsets" },
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{ TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
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FALSE, FALSE, "TileByteCounts" },
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{ TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
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FALSE, FALSE, "TileByteCounts" },
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{ TIFFTAG_SUBIFD, -1,-1, TIFF_IFD, FIELD_SUBIFD,
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TRUE, TRUE, "SubIFD" },
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{ TIFFTAG_SUBIFD, -1,-1, TIFF_LONG, FIELD_SUBIFD,
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TRUE, TRUE, "SubIFD" },
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{ TIFFTAG_INKSET, 1, 1, TIFF_SHORT, FIELD_INKSET,
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FALSE, FALSE, "InkSet" },
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{ TIFFTAG_INKNAMES, -1,-1, TIFF_ASCII, FIELD_INKNAMES,
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TRUE, TRUE, "InkNames" },
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{ TIFFTAG_NUMBEROFINKS, 1, 1, TIFF_SHORT, FIELD_NUMBEROFINKS,
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TRUE, FALSE, "NumberOfInks" },
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{ TIFFTAG_DOTRANGE, 2, 2, TIFF_SHORT, FIELD_DOTRANGE,
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FALSE, FALSE, "DotRange" },
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{ TIFFTAG_DOTRANGE, 2, 2, TIFF_BYTE, FIELD_DOTRANGE,
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FALSE, FALSE, "DotRange" },
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{ TIFFTAG_TARGETPRINTER, -1,-1, TIFF_ASCII, FIELD_TARGETPRINTER,
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TRUE, FALSE, "TargetPrinter" },
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{ TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_SHORT, FIELD_EXTRASAMPLES,
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FALSE, TRUE, "ExtraSamples" },
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/* XXX for bogus Adobe Photoshop v2.5 files */
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{ TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_BYTE, FIELD_EXTRASAMPLES,
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FALSE, TRUE, "ExtraSamples" },
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{ TIFFTAG_SAMPLEFORMAT, -1,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT,
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FALSE, FALSE, "SampleFormat" },
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{ TIFFTAG_SMINSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMINSAMPLEVALUE,
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TRUE, FALSE, "SMinSampleValue" },
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{ TIFFTAG_SMAXSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMAXSAMPLEVALUE,
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TRUE, FALSE, "SMaxSampleValue" },
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{ TIFFTAG_YCBCRCOEFFICIENTS, 3, 3, TIFF_RATIONAL, FIELD_YCBCRCOEFFICIENTS,
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FALSE, FALSE, "YCbCrCoefficients" },
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{ TIFFTAG_YCBCRSUBSAMPLING, 2, 2, TIFF_SHORT, FIELD_YCBCRSUBSAMPLING,
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FALSE, FALSE, "YCbCrSubsampling" },
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{ TIFFTAG_YCBCRPOSITIONING, 1, 1, TIFF_SHORT, FIELD_YCBCRPOSITIONING,
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FALSE, FALSE, "YCbCrPositioning" },
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{ TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_RATIONAL, FIELD_REFBLACKWHITE,
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TRUE, FALSE, "ReferenceBlackWhite" },
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/* XXX temporarily accept LONG for backwards compatibility */
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{ TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_LONG, FIELD_REFBLACKWHITE,
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TRUE, FALSE, "ReferenceBlackWhite" },
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{ TIFFTAG_XMLPACKET, -1,-3, TIFF_BYTE, FIELD_XMLPACKET,
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FALSE, TRUE, "XMLPacket" },
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/* begin SGI tags */
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{ TIFFTAG_MATTEING, 1, 1, TIFF_SHORT, FIELD_EXTRASAMPLES,
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FALSE, FALSE, "Matteing" },
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{ TIFFTAG_DATATYPE, -2,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT,
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FALSE, FALSE, "DataType" },
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{ TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_LONG, FIELD_IMAGEDEPTH,
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FALSE, FALSE, "ImageDepth" },
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{ TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDEPTH,
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FALSE, FALSE, "ImageDepth" },
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{ TIFFTAG_TILEDEPTH, 1, 1, TIFF_LONG, FIELD_TILEDEPTH,
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FALSE, FALSE, "TileDepth" },
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{ TIFFTAG_TILEDEPTH, 1, 1, TIFF_SHORT, FIELD_TILEDEPTH,
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FALSE, FALSE, "TileDepth" },
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/* end SGI tags */
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/* begin Pixar tags */
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{ TIFFTAG_PIXAR_IMAGEFULLWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEFULLWIDTH,
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TRUE, FALSE, "ImageFullWidth" },
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{ TIFFTAG_PIXAR_IMAGEFULLLENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEFULLLENGTH,
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TRUE, FALSE, "ImageFullLength" },
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{ TIFFTAG_PIXAR_TEXTUREFORMAT, -1,-1, TIFF_ASCII, FIELD_TEXTUREFORMAT,
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TRUE, FALSE, "TextureFormat" },
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{ TIFFTAG_PIXAR_WRAPMODES, -1,-1, TIFF_ASCII, FIELD_WRAPMODES,
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TRUE, FALSE, "TextureWrapModes" },
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{ TIFFTAG_PIXAR_FOVCOT, 1, 1, TIFF_FLOAT, FIELD_FOVCOT,
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TRUE, FALSE, "FieldOfViewCotan" },
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{ TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN, 16,16, TIFF_FLOAT,
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FIELD_MATRIX_WORLDTOSCREEN, TRUE, FALSE, "MatrixWorldToScreen" },
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{ TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA, 16,16, TIFF_FLOAT,
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FIELD_MATRIX_WORLDTOCAMERA, TRUE, FALSE, "MatrixWorldToCamera" },
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{ TIFFTAG_COPYRIGHT, -1,-1, TIFF_ASCII, FIELD_COPYRIGHT,
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TRUE, FALSE, "Copyright" },
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/* end Pixar tags */
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{ TIFFTAG_RICHTIFFIPTC, -1,-3, TIFF_LONG, FIELD_RICHTIFFIPTC,
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FALSE, TRUE, "RichTIFFIPTC" },
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{ TIFFTAG_PHOTOSHOP, -1,-3, TIFF_BYTE, FIELD_PHOTOSHOP,
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FALSE, TRUE, "Photoshop" },
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{ TIFFTAG_ICCPROFILE, -1,-3, TIFF_UNDEFINED, FIELD_ICCPROFILE,
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FALSE, TRUE, "ICC Profile" },
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{ TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, FIELD_STONITS,
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FALSE, FALSE, "StoNits" },
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};
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#define N(a) (sizeof (a) / sizeof (a[0]))
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void
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_TIFFSetupFieldInfo(TIFF* tif)
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{
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if (tif->tif_fieldinfo) {
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int i;
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for (i = 0; i < tif->tif_nfields; i++)
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{
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TIFFFieldInfo *fld = tif->tif_fieldinfo[i];
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if (fld->field_bit == FIELD_CUSTOM &&
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strncmp("Tag ", fld->field_name, 4) == 0)
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{
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_TIFFfree(fld->field_name);
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_TIFFfree(fld);
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}
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}
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_TIFFfree(tif->tif_fieldinfo);
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tif->tif_nfields = 0;
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}
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_TIFFMergeFieldInfo(tif, tiffFieldInfo, N(tiffFieldInfo));
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}
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static int
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tagCompare(const void* a, const void* b)
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{
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const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a;
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const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b;
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/* NB: be careful of return values for 16-bit platforms */
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if (ta->field_tag != tb->field_tag)
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return (ta->field_tag < tb->field_tag ? -1 : 1);
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else
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return ((int)tb->field_type - (int)ta->field_type);
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}
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static int
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tagNameCompare(const void* a, const void* b)
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{
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const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a;
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const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b;
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return strcmp(ta->field_name, tb->field_name);
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}
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void
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_TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n)
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{
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TIFFFieldInfo** tp;
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int i;
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tif->tif_foundfield = NULL;
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if (tif->tif_nfields > 0) {
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tif->tif_fieldinfo = (TIFFFieldInfo**)
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_TIFFrealloc(tif->tif_fieldinfo,
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(tif->tif_nfields+n) * sizeof (TIFFFieldInfo*));
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} else {
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tif->tif_fieldinfo = (TIFFFieldInfo**)
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_TIFFmalloc(n * sizeof (TIFFFieldInfo*));
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}
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assert(tif->tif_fieldinfo != NULL);
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tp = &tif->tif_fieldinfo[tif->tif_nfields];
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for (i = 0; i < n; i++)
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tp[i] = (TIFFFieldInfo*) &info[i]; /* XXX */
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/* Sort the field info by tag number */
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qsort(tif->tif_fieldinfo, (size_t) (tif->tif_nfields += n),
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sizeof (TIFFFieldInfo*), tagCompare);
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}
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void
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_TIFFPrintFieldInfo(TIFF* tif, FILE* fd)
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{
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int i;
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fprintf(fd, "%s: \n", tif->tif_name);
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for (i = 0; i < tif->tif_nfields; i++) {
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const TIFFFieldInfo* fip = tif->tif_fieldinfo[i];
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fprintf(fd, "field[%2d] %5lu, %2d, %2d, %d, %2d, %5s, %5s, %s\n"
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, i
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, (unsigned long) fip->field_tag
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, fip->field_readcount, fip->field_writecount
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, fip->field_type
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, fip->field_bit
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, fip->field_oktochange ? "TRUE" : "FALSE"
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, fip->field_passcount ? "TRUE" : "FALSE"
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, fip->field_name
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);
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}
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}
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/*
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* Return size of TIFFDataType in bytes
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*/
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int
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TIFFDataWidth(TIFFDataType type)
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{
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switch(type)
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{
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case 0: /* nothing */
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case 1: /* TIFF_BYTE */
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case 2: /* TIFF_ASCII */
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case 6: /* TIFF_SBYTE */
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case 7: /* TIFF_UNDEFINED */
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return 1;
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case 3: /* TIFF_SHORT */
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case 8: /* TIFF_SSHORT */
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|
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 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)
|
|
{
|
|
int i, n;
|
|
|
|
if (tif->tif_foundfield && tif->tif_foundfield->field_tag == tag &&
|
|
(dt == TIFF_ANY || dt == tif->tif_foundfield->field_type))
|
|
return (tif->tif_foundfield);
|
|
/* NB: use sorted search (e.g. binary search) */
|
|
if(dt != TIFF_ANY) {
|
|
TIFFFieldInfo key = {0, 0, 0, 0, 0, 0, 0, 0};
|
|
key.field_tag = tag;
|
|
key.field_type = dt;
|
|
return((const TIFFFieldInfo *) bsearch(&key,
|
|
tif->tif_fieldinfo,
|
|
tif->tif_nfields,
|
|
sizeof(TIFFFieldInfo),
|
|
tagCompare));
|
|
} else for (i = 0, n = tif->tif_nfields; i < n; i++) {
|
|
const TIFFFieldInfo* fip = tif->tif_fieldinfo[i];
|
|
if (fip->field_tag == tag &&
|
|
(dt == TIFF_ANY || fip->field_type == dt))
|
|
return (tif->tif_foundfield = fip);
|
|
}
|
|
return ((const TIFFFieldInfo *)0);
|
|
}
|
|
|
|
const TIFFFieldInfo*
|
|
_TIFFFindFieldInfoByName(TIFF* tif, const char *field_name, TIFFDataType dt)
|
|
{
|
|
int i, n;
|
|
|
|
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);
|
|
/* NB: use sorted search (e.g. binary search) */
|
|
if(dt != TIFF_ANY) {
|
|
TIFFFieldInfo key = {0, 0, 0, 0, 0, 0, 0, 0};
|
|
key.field_name = (char *)field_name;
|
|
key.field_type = dt;
|
|
return((const TIFFFieldInfo *) bsearch(&key,
|
|
tif->tif_fieldinfo,
|
|
tif->tif_nfields,
|
|
sizeof(TIFFFieldInfo),
|
|
tagNameCompare));
|
|
} else for (i = 0, n = tif->tif_nfields; i < n; i++) {
|
|
const TIFFFieldInfo* fip = tif->tif_fieldinfo[i];
|
|
if (streq(fip->field_name, field_name) &&
|
|
(dt == TIFF_ANY || fip->field_type == dt))
|
|
return (tif->tif_foundfield = fip);
|
|
}
|
|
return ((const TIFFFieldInfo *)0);
|
|
}
|
|
|
|
const TIFFFieldInfo*
|
|
_TIFFFieldWithTag(TIFF* tif, ttag_t tag)
|
|
{
|
|
const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY);
|
|
if (!fip) {
|
|
TIFFError("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) {
|
|
TIFFError("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 );
|
|
_TIFFMergeFieldInfo( tif, fld, 1 );
|
|
}
|
|
|
|
return fld;
|
|
}
|
|
|
|
TIFFFieldInfo*
|
|
_TIFFCreateAnonFieldInfo(TIFF *tif, ttag_t tag, TIFFDataType field_type)
|
|
{
|
|
TIFFFieldInfo *fld;
|
|
|
|
fld = (TIFFFieldInfo *) _TIFFmalloc(sizeof (TIFFFieldInfo));
|
|
if (fld == NULL)
|
|
return NULL;
|
|
_TIFFmemset( fld, 0, sizeof(TIFFFieldInfo) );
|
|
|
|
fld->field_tag = tag;
|
|
fld->field_readcount = TIFF_VARIABLE;
|
|
fld->field_writecount = TIFF_VARIABLE;
|
|
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: */
|