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535 lines
19 KiB
535 lines
19 KiB
/* $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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|
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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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|
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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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/* |
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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; |
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case 4: /* TIFF_LONG */ |
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case 9: /* TIFF_SLONG */ |
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case 11: /* TIFF_FLOAT */ |
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case 13: /* TIFF_IFD */ |
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return 4; |
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case 5: /* TIFF_RATIONAL */ |
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case 10: /* TIFF_SRATIONAL */ |
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case 12: /* TIFF_DOUBLE */ |
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return 8; |
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default: |
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return 0; /* will return 0 for unknown types */ |
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} |
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} |
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|
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/* |
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* Return nearest TIFFDataType to the sample type of an image. |
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*/ |
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TIFFDataType |
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_TIFFSampleToTagType(TIFF* tif) |
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{ |
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uint32 bps = TIFFhowmany8(tif->tif_dir.td_bitspersample); |
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|
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switch (tif->tif_dir.td_sampleformat) { |
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case SAMPLEFORMAT_IEEEFP: |
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return (bps == 4 ? TIFF_FLOAT : TIFF_DOUBLE); |
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case SAMPLEFORMAT_INT: |
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return (bps <= 1 ? TIFF_SBYTE : |
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bps <= 2 ? TIFF_SSHORT : TIFF_SLONG); |
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case SAMPLEFORMAT_UINT: |
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return (bps <= 1 ? TIFF_BYTE : |
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bps <= 2 ? TIFF_SHORT : TIFF_LONG); |
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case SAMPLEFORMAT_VOID: |
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return (TIFF_UNDEFINED); |
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} |
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/*NOTREACHED*/ |
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return (TIFF_UNDEFINED); |
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} |
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const TIFFFieldInfo* |
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_TIFFFindFieldInfo(TIFF* tif, ttag_t tag, TIFFDataType dt) |
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{ |
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int i, n; |
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|
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if (tif->tif_foundfield && tif->tif_foundfield->field_tag == tag && |
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(dt == TIFF_ANY || dt == tif->tif_foundfield->field_type)) |
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return (tif->tif_foundfield); |
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/* 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: */
|
|
|