diff options
Diffstat (limited to 'libtiff/tif_dirinfo.c')
| -rw-r--r-- | libtiff/tif_dirinfo.c | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/libtiff/tif_dirinfo.c b/libtiff/tif_dirinfo.c new file mode 100644 index 00000000..e10a6dbe --- /dev/null +++ b/libtiff/tif_dirinfo.c @@ -0,0 +1,386 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_dirinfo.c,v 1.1 1999-07-27 21:50:27 mike 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> + +/* + * 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. + */ +static 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_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" }, +#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" }, +#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, TRUE, "InkNames" }, + { TIFFTAG_NUMBEROFINKS, 1, 1, TIFF_SHORT, FIELD_NUMBEROFINKS, + TRUE, FALSE, "NumberOfInks" }, + { 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" }, + { TIFFTAG_SMINSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMINSAMPLEVALUE, + TRUE, FALSE, "SMinSampleValue" }, + { TIFFTAG_SMAXSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMAXSAMPLEVALUE, + TRUE, FALSE, "SMaxSampleValue" }, +#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, + TRUE, FALSE, "ReferenceBlackWhite" }, +/* XXX temporarily accept LONG for backwards compatibility */ + { TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_LONG, FIELD_REFBLACKWHITE, + TRUE, 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 */ +#ifdef IPTC_SUPPORT +#ifdef PHOTOSHOP_SUPPORT + { TIFFTAG_RICHTIFFIPTC, -1,-1, TIFF_LONG, FIELD_RICHTIFFIPTC, + FALSE, TRUE, "RichTIFFIPTC" }, +#else + { TIFFTAG_RICHTIFFIPTC, -1,-3, TIFF_UNDEFINED, FIELD_RICHTIFFIPTC, + FALSE, TRUE, "RichTIFFIPTC" }, +#endif +#endif +#ifdef PHOTOSHOP_SUPPORT + { TIFFTAG_PHOTOSHOP, -1,-3, TIFF_UNDEFINED, FIELD_PHOTOSHOP, + FALSE, TRUE, "Photoshop" }, + { TIFFTAG_PHOTOSHOP, -1,-1, TIFF_BYTE, FIELD_PHOTOSHOP, + FALSE, TRUE, "Photoshop" }, +#endif +#ifdef ICC_SUPPORT + { TIFFTAG_ICCPROFILE, -1,-3, TIFF_UNDEFINED, FIELD_ICCPROFILE, + FALSE, TRUE, "ICC Profile" }, +#endif + { TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, FIELD_STONITS, + FALSE, FALSE, "StoNits" }, +}; +#define N(a) (sizeof (a) / sizeof (a[0])) + +void +_TIFFSetupFieldInfo(TIFF* tif) +{ + if (tif->tif_fieldinfo) { + _TIFFfree(tif->tif_fieldinfo); + tif->tif_nfields = 0; + } + _TIFFMergeFieldInfo(tif, tiffFieldInfo, N(tiffFieldInfo)); +} + +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 (ta->field_tag < tb->field_tag ? -1 : 1); + else + return (tb->field_type < ta->field_type ? -1 : 1); +} + +void +_TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n) +{ + TIFFFieldInfo** tp; + int i; + + if (tif->tif_nfields > 0) { + tif->tif_fieldinfo = (TIFFFieldInfo**) + _TIFFrealloc(tif->tif_fieldinfo, + (tif->tif_nfields+n) * sizeof (TIFFFieldInfo*)); + } else { + tif->tif_fieldinfo = (TIFFFieldInfo**) + _TIFFmalloc(n * sizeof (TIFFFieldInfo*)); + } + tp = &tif->tif_fieldinfo[tif->tif_nfields]; + for (i = 0; i < n; i++) + tp[i] = (TIFFFieldInfo*) &info[i]; /* XXX */ + /* + * NB: the core tags are presumed sorted correctly. + */ + if (tif->tif_nfields > 0) + qsort(tif->tif_fieldinfo, (size_t) (tif->tif_nfields += n), + sizeof (TIFFFieldInfo*), tagCompare); + else + tif->tif_nfields += n; +} + +void +_TIFFPrintFieldInfo(TIFF* tif, FILE* fd) +{ + int 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" + , 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 + ); + } +} + +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 */ +}; + +/* + * Return nearest TIFFDataType to the sample type of an image. + */ +TIFFDataType +_TIFFSampleToTagType(TIFF* tif) +{ + int bps = (int) TIFFhowmany(tif->tif_dir.td_bitspersample, 8); + + 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) +{ + static const TIFFFieldInfo *last = NULL; + int i, n; + + 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 (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 (last = fip); + } + return ((const TIFFFieldInfo *)0); +} + +#include <assert.h> +#include <stdio.h> + +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", (u_int) tag); + assert(fip != NULL); + /*NOTREACHED*/ + } + return (fip); +} |