+++ /dev/null
-/* $Id: tif_dirinfo.c,v 1.1 2005/06/17 13:54:52 vp153 Exp $ */
-
-/*
- * Copyright (c) 1988-1997 Sam Leffler
- * Copyright (c) 1991-1997 Silicon Graphics, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and
- * its documentation for any purpose is hereby granted without fee, provided
- * that (i) the above copyright notices and this permission notice appear in
- * all copies of the software and related documentation, and (ii) the names of
- * Sam Leffler and Silicon Graphics may not be used in any advertising or
- * publicity relating to the software without the specific, prior written
- * permission of Sam Leffler and Silicon Graphics.
- *
- * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- *
- * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
- * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
- * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
- * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
- */
-
-/*
- * TIFF Library.
- *
- * Core Directory Tag Support.
- */
-#include "tiffiop.h"
-#include <stdlib.h>
-#include <stdio.h>
-
-/*
- * NB: NB: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG.
- * If a tag can have both LONG and SHORT types
- * then the LONG must be placed before the SHORT for
- * writing to work properly.
- *
- * NOTE: The second field (field_readcount) and third field (field_writecount)
- * sometimes use the values TIFF_VARIABLE (-1), TIFF_VARIABLE2 (-3)
- * and TIFFTAG_SPP (-2). The macros should be used but would throw off
- * the formatting of the code, so please interprete the -1, -2 and -3
- * values accordingly.
- */
-#ifndef VMS
-static
-#endif
-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" },
-/* XXX LONG for compatibility with some broken TIFF writers */
- { TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_LONG, FIELD_BITSPERSAMPLE,
- FALSE, FALSE, "BitsPerSample" },
- { TIFFTAG_COMPRESSION, -1, 1, TIFF_SHORT, FIELD_COMPRESSION,
- FALSE, FALSE, "Compression" },
-/* XXX LONG for compatibility with some broken TIFF writers */
- { TIFFTAG_COMPRESSION, -1, 1, TIFF_LONG, FIELD_COMPRESSION,
- FALSE, FALSE, "Compression" },
- { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, FIELD_PHOTOMETRIC,
- FALSE, FALSE, "PhotometricInterpretation" },
-/* XXX LONG for compatibility with some broken TIFF writers */
- { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_LONG, 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" },
- { TIFFTAG_TRANSFERFUNCTION, -1,-1, TIFF_SHORT, FIELD_TRANSFERFUNCTION,
- TRUE, FALSE, "TransferFunction" },
- { TIFFTAG_SOFTWARE, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
- TRUE, FALSE, "Software" },
- { TIFFTAG_DATETIME, 20,20, TIFF_ASCII, FIELD_DATETIME,
- TRUE, FALSE, "DateTime" },
- { TIFFTAG_ARTIST, -1,-1, TIFF_ASCII, FIELD_ARTIST,
- TRUE, FALSE, "Artist" },
- { TIFFTAG_HOSTCOMPUTER, -1,-1, TIFF_ASCII, FIELD_HOSTCOMPUTER,
- TRUE, FALSE, "HostComputer" },
- { TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL,FIELD_WHITEPOINT,
- TRUE, FALSE, "WhitePoint" },
- { TIFFTAG_PRIMARYCHROMATICITIES,6,6,TIFF_RATIONAL,FIELD_PRIMARYCHROMAS,
- TRUE, FALSE, "PrimaryChromaticities" },
- { TIFFTAG_COLORMAP, -1,-1, TIFF_SHORT, FIELD_COLORMAP,
- TRUE, FALSE, "ColorMap" },
- { TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, FIELD_HALFTONEHINTS,
- TRUE, FALSE, "HalftoneHints" },
- { TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
- FALSE, FALSE, "TileWidth" },
- { TIFFTAG_TILEWIDTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
- FALSE, FALSE, "TileWidth" },
- { TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
- FALSE, FALSE, "TileLength" },
- { TIFFTAG_TILELENGTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
- FALSE, FALSE, "TileLength" },
- { TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG, FIELD_STRIPOFFSETS,
- FALSE, FALSE, "TileOffsets" },
- { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
- FALSE, FALSE, "TileByteCounts" },
- { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
- FALSE, FALSE, "TileByteCounts" },
- { TIFFTAG_SUBIFD, -1,-1, TIFF_IFD, FIELD_SUBIFD,
- TRUE, TRUE, "SubIFD" },
- { TIFFTAG_SUBIFD, -1,-1, TIFF_LONG, FIELD_SUBIFD,
- TRUE, TRUE, "SubIFD" },
- { 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" },
- { TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_SHORT, FIELD_EXTRASAMPLES,
- FALSE, TRUE, "ExtraSamples" },
-/* XXX for bogus Adobe Photoshop v2.5 files */
- { TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_BYTE, FIELD_EXTRASAMPLES,
- FALSE, TRUE, "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" },
- { 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" },
- { 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" },
- { TIFFTAG_XMLPACKET, -1,-3, TIFF_BYTE, FIELD_XMLPACKET,
- FALSE, TRUE, "XMLPacket" },
-/* 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 */
-/* begin Pixar tags */
- { TIFFTAG_PIXAR_IMAGEFULLWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEFULLWIDTH,
- TRUE, FALSE, "ImageFullWidth" },
- { TIFFTAG_PIXAR_IMAGEFULLLENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEFULLLENGTH,
- TRUE, FALSE, "ImageFullLength" },
- { TIFFTAG_PIXAR_TEXTUREFORMAT, -1,-1, TIFF_ASCII, FIELD_TEXTUREFORMAT,
- TRUE, FALSE, "TextureFormat" },
- { TIFFTAG_PIXAR_WRAPMODES, -1,-1, TIFF_ASCII, FIELD_WRAPMODES,
- TRUE, FALSE, "TextureWrapModes" },
- { TIFFTAG_PIXAR_FOVCOT, 1, 1, TIFF_FLOAT, FIELD_FOVCOT,
- TRUE, FALSE, "FieldOfViewCotan" },
- { TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN, 16,16, TIFF_FLOAT,
- FIELD_MATRIX_WORLDTOSCREEN, TRUE, FALSE, "MatrixWorldToScreen" },
- { TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA, 16,16, TIFF_FLOAT,
- FIELD_MATRIX_WORLDTOCAMERA, TRUE, FALSE, "MatrixWorldToCamera" },
- { TIFFTAG_COPYRIGHT, -1,-1, TIFF_ASCII, FIELD_COPYRIGHT,
- TRUE, FALSE, "Copyright" },
-/* end Pixar tags */
- { TIFFTAG_RICHTIFFIPTC, -1,-3, TIFF_LONG, FIELD_RICHTIFFIPTC,
- FALSE, TRUE, "RichTIFFIPTC" },
- { TIFFTAG_PHOTOSHOP, -1,-3, TIFF_BYTE, FIELD_PHOTOSHOP,
- FALSE, TRUE, "Photoshop" },
- { TIFFTAG_ICCPROFILE, -1,-3, TIFF_UNDEFINED, FIELD_ICCPROFILE,
- FALSE, TRUE, "ICC Profile" },
- { 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) {
- int i;
-
- for (i = 0; i < tif->tif_nfields; i++)
- {
- TIFFFieldInfo *fld = tif->tif_fieldinfo[i];
- if (fld->field_bit == FIELD_CUSTOM &&
- strncmp("Tag ", fld->field_name, 4) == 0)
- {
- _TIFFfree(fld->field_name);
- _TIFFfree(fld);
- }
- }
-
- _TIFFfree(tif->tif_fieldinfo);
- tif->tif_nfields = 0;
- }
- _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 ((int)tb->field_type - (int)ta->field_type);
-}
-
-static int
-tagNameCompare(const void* a, const void* b)
-{
- const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a;
- const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b;
-
- return strcmp(ta->field_name, tb->field_name);
-}
-
-void
-_TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n)
-{
- TIFFFieldInfo** tp;
- int i;
-
- tif->tif_foundfield = NULL;
-
- 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*));
- }
- assert(tif->tif_fieldinfo != NULL);
- tp = &tif->tif_fieldinfo[tif->tif_nfields];
- for (i = 0; i < n; i++)
- tp[i] = (TIFFFieldInfo*) &info[i]; /* XXX */
-
- /* Sort the field info by tag number */
- qsort(tif->tif_fieldinfo, (size_t) (tif->tif_nfields += n),
- sizeof (TIFFFieldInfo*), tagCompare);
-}
-
-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
- );
- }
-}
-
-/*
- * Return size of TIFFDataType in bytes
- */
-int
-TIFFDataWidth(TIFFDataType type)
-{
- switch(type)
- {
- case 0: /* nothing */
- case 1: /* TIFF_BYTE */
- case 2: /* TIFF_ASCII */
- case 6: /* TIFF_SBYTE */
- case 7: /* TIFF_UNDEFINED */
- return 1;
- case 3: /* TIFF_SHORT */
- case 8: /* TIFF_SSHORT */
- return 2;
- case 4: /* TIFF_LONG */
- case 9: /* TIFF_SLONG */
- case 11: /* TIFF_FLOAT */
- case 13: /* TIFF_IFD */
- return 4;
- case 5: /* TIFF_RATIONAL */
- case 10: /* TIFF_SRATIONAL */
- case 12: /* TIFF_DOUBLE */
- return 8;
- default:
- return 0; /* will return 0 for unknown types */
- }
-}
-
-/*
- * Return 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: */
projects / opencv / blobdiff