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Diffstat (limited to 'libtiff/tif_dir.h')
| -rw-r--r-- | libtiff/tif_dir.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/libtiff/tif_dir.h b/libtiff/tif_dir.h new file mode 100644 index 00000000..cd94c71f --- /dev/null +++ b/libtiff/tif_dir.h @@ -0,0 +1,220 @@ +/* $Header: /usr/people/sam/tiff/libtiff/RCS/tif_dir.h,v 1.2 1995/06/30 05:46:47 sam Exp $ */ + +/* + * Copyright (c) 1988-1995 Sam Leffler + * Copyright (c) 1991-1995 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. + */ + +#ifndef _TIFFDIR_ +#define _TIFFDIR_ +/* + * ``Library-private'' Directory-related Definitions. + */ + +/* + * Internal format of a TIFF directory entry. + */ +typedef struct { +#define FIELD_SETLONGS 3 + /* bit vector of fields that are set */ + u_long td_fieldsset[FIELD_SETLONGS]; + + uint32 td_imagewidth, td_imagelength, td_imagedepth; + uint32 td_tilewidth, td_tilelength, td_tiledepth; + uint32 td_subfiletype; + uint16 td_bitspersample; + uint16 td_sampleformat; + uint16 td_compression; + uint16 td_photometric; + uint16 td_threshholding; + uint16 td_fillorder; + uint16 td_orientation; + uint16 td_samplesperpixel; + uint32 td_rowsperstrip; + uint16 td_minsamplevalue, td_maxsamplevalue; + double td_sminsamplevalue, td_smaxsamplevalue; + float td_xresolution, td_yresolution; + uint16 td_resolutionunit; + uint16 td_planarconfig; + float td_xposition, td_yposition; + uint16 td_pagenumber[2]; + uint16* td_colormap[3]; + uint16 td_halftonehints[2]; + uint16 td_extrasamples; + uint16* td_sampleinfo; + char* td_documentname; + char* td_artist; + char* td_datetime; + char* td_hostcomputer; + char* td_imagedescription; + char* td_make; + char* td_model; + char* td_software; + char* td_pagename; + tstrip_t td_stripsperimage; + tstrip_t td_nstrips; /* size of offset & bytecount arrays */ + uint32* td_stripoffset; + uint32* td_stripbytecount; +#if SUBIFD_SUPPORT + uint16 td_nsubifd; + uint32* td_subifd; +#endif +#ifdef YCBCR_SUPPORT + float* td_ycbcrcoeffs; + uint16 td_ycbcrsubsampling[2]; + uint16 td_ycbcrpositioning; +#endif +#ifdef COLORIMETRY_SUPPORT + float* td_whitepoint; + float* td_primarychromas; + float* td_refblackwhite; + uint16* td_transferfunction[3]; +#endif +#ifdef CMYK_SUPPORT + uint16 td_inkset; + uint16 td_dotrange[2]; + char* td_inknames; + char* td_targetprinter; +#endif +} TIFFDirectory; + +/* + * Field flags used to indicate fields that have + * been set in a directory, and to reference fields + * when manipulating a directory. + */ + +/* + * FIELD_IGNORE is used to signify tags that are to + * be processed but otherwise ignored. This permits + * antiquated tags to be quietly read and discarded. + * Note that a bit *is* allocated for ignored tags; + * this is understood by the directory reading logic + * which uses this fact to avoid special-case handling + */ +#define FIELD_IGNORE 0 + +/* multi-item fields */ +#define FIELD_IMAGEDIMENSIONS 1 +#define FIELD_TILEDIMENSIONS 2 +#define FIELD_RESOLUTION 3 +#define FIELD_POSITION 4 + +/* single-item fields */ +#define FIELD_SUBFILETYPE 5 +#define FIELD_BITSPERSAMPLE 6 +#define FIELD_COMPRESSION 7 +#define FIELD_PHOTOMETRIC 8 +#define FIELD_THRESHHOLDING 9 +#define FIELD_FILLORDER 10 +#define FIELD_DOCUMENTNAME 11 +#define FIELD_IMAGEDESCRIPTION 12 +#define FIELD_MAKE 13 +#define FIELD_MODEL 14 +#define FIELD_ORIENTATION 15 +#define FIELD_SAMPLESPERPIXEL 16 +#define FIELD_ROWSPERSTRIP 17 +#define FIELD_MINSAMPLEVALUE 18 +#define FIELD_MAXSAMPLEVALUE 19 +#define FIELD_PLANARCONFIG 20 +#define FIELD_PAGENAME 21 +#define FIELD_RESOLUTIONUNIT 22 +#define FIELD_PAGENUMBER 23 +#define FIELD_STRIPBYTECOUNTS 24 +#define FIELD_STRIPOFFSETS 25 +#define FIELD_COLORMAP 26 +#define FIELD_ARTIST 27 +#define FIELD_DATETIME 28 +#define FIELD_HOSTCOMPUTER 29 +#define FIELD_SOFTWARE 30 +#define FIELD_EXTRASAMPLES 31 +#define FIELD_SAMPLEFORMAT 32 +#define FIELD_SMINSAMPLEVALUE 33 +#define FIELD_SMAXSAMPLEVALUE 34 +#define FIELD_IMAGEDEPTH 35 +#define FIELD_TILEDEPTH 36 +#define FIELD_HALFTONEHINTS 37 +#define FIELD_YCBCRCOEFFICIENTS 38 +#define FIELD_YCBCRSUBSAMPLING 39 +#define FIELD_YCBCRPOSITIONING 40 +#define FIELD_REFBLACKWHITE 41 +#define FIELD_WHITEPOINT 42 +#define FIELD_PRIMARYCHROMAS 43 +#define FIELD_TRANSFERFUNCTION 44 +#define FIELD_INKSET 45 +#define FIELD_INKNAMES 46 +#define FIELD_DOTRANGE 47 +#define FIELD_TARGETPRINTER 48 +#define FIELD_SUBIFD 49 + +#define FIELD_CODEC 50 /* base of codec-private tags */ + +#define FIELD_LAST (32*FIELD_SETLONGS-1) + +#define TIFFExtractData(tif, type, v) \ + ((uint32) ((tif)->tif_header.tiff_magic == TIFF_BIGENDIAN ? \ + ((v) >> (tif)->tif_typeshift[type]) & (tif)->tif_typemask[type] : \ + (v) & (tif)->tif_typemask[type])) +#define TIFFInsertData(tif, type, v) \ + ((uint32) ((tif)->tif_header.tiff_magic == TIFF_BIGENDIAN ? \ + ((v) & (tif)->tif_typemask[type]) << (tif)->tif_typeshift[type] : \ + (v) & (tif)->tif_typemask[type])) + +typedef struct { + ttag_t field_tag; /* field's tag */ + short field_readcount; /* read count (-1 for unknown) */ + short field_writecount; /* write count (-1 for unknown) */ + TIFFDataType field_type; /* type of associated data */ + u_short field_bit; /* bit in fieldsset bit vector */ + u_char field_oktochange; /* if true, can change while writing */ + u_char field_passcount; /* if true, pass dir count on set */ + char *field_name; /* ASCII name */ +} TIFFFieldInfo; + +#define TIFF_ANY TIFF_NOTYPE /* for field descriptor searching */ +#define TIFF_VARIABLE -1 /* marker for variable length tags */ +#define TIFF_SPP -2 /* marker for SamplesPerPixel tags */ + +extern const int tiffDataWidth[]; /* table of tag datatype widths */ + +#define BITn(n) (((u_long)1L)<<((n)&0x1f)) +#define BITFIELDn(tif, n) ((tif)->tif_dir.td_fieldsset[(n)/32]) +#define TIFFFieldSet(tif, field) (BITFIELDn(tif, field) & BITn(field)) +#define TIFFSetFieldBit(tif, field) (BITFIELDn(tif, field) |= BITn(field)) +#define TIFFClrFieldBit(tif, field) (BITFIELDn(tif, field) &= ~BITn(field)) + +#define FieldSet(fields, f) (fields[(f)/32] & BITn(f)) +#define ResetFieldBit(fields, f) (fields[(f)/32] &= ~BITn(f)) + +#if defined(__cplusplus) +extern "C" { +#endif +extern void _TIFFSetupFieldInfo(TIFF*); +extern void _TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int); +extern void _TIFFPrintFieldInfo(TIFF*, FILE*); +extern const TIFFFieldInfo* _TIFFFindFieldInfo(TIFF*, ttag_t, TIFFDataType); +extern const TIFFFieldInfo* _TIFFFieldWithTag(TIFF*, ttag_t); +extern TIFFDataType _TIFFSampleToTagType(TIFF*); +#if defined(__cplusplus) +} +#endif +#endif /* _TIFFDIR_ */ |