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/* $Id: tif_dir.h,v 1.4 2010/01/26 15:56:36 scuri 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.
*/
#ifndef _TIFFDIR_
#define _TIFFDIR_
/*
* ``Library-private'' Directory-related Definitions.
*/
/*
* Internal format of a TIFF directory entry.
*/
typedef struct {
#define FIELD_SETLONGS 4
/* bit vector of fields that are set */
unsigned 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;
tstrip_t td_stripsperimage;
tstrip_t td_nstrips; /* size of offset & bytecount arrays */
uint32* td_stripoffset;
uint32* td_stripbytecount;
int td_stripbytecountsorted; /* is the bytecount array sorted ascending? */
uint16 td_nsubifd;
uint32* td_subifd;
/* YCbCr parameters */
uint16 td_ycbcrsubsampling[2];
uint16 td_ycbcrpositioning;
/* Colorimetry parameters */
uint16* td_transferfunction[3];
/* CMYK parameters */
int td_inknameslen;
char* td_inknames;
int td_customValueCount;
TIFFTagValue *td_customValues;
} 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_ORIENTATION 15
#define FIELD_SAMPLESPERPIXEL 16
#define FIELD_ROWSPERSTRIP 17
#define FIELD_MINSAMPLEVALUE 18
#define FIELD_MAXSAMPLEVALUE 19
#define FIELD_PLANARCONFIG 20
#define FIELD_RESOLUTIONUNIT 22
#define FIELD_PAGENUMBER 23
#define FIELD_STRIPBYTECOUNTS 24
#define FIELD_STRIPOFFSETS 25
#define FIELD_COLORMAP 26
#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_YCBCRSUBSAMPLING 39
#define FIELD_YCBCRPOSITIONING 40
#define FIELD_TRANSFERFUNCTION 44
#define FIELD_INKNAMES 46
#define FIELD_SUBIFD 49
/* FIELD_CUSTOM (see tiffio.h) 65 */
/* end of support for well-known tags; codec-private tags follow */
#define FIELD_CODEC 66 /* base of codec-private tags */
/*
* Pseudo-tags don't normally need field bits since they
* are not written to an output file (by definition).
* The library also has express logic to always query a
* codec for a pseudo-tag so allocating a field bit for
* one is a waste. If codec wants to promote the notion
* of a pseudo-tag being ``set'' or ``unset'' then it can
* do using internal state flags without polluting the
* field bit space defined for real tags.
*/
#define FIELD_PSEUDO 0
#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]))
#define BITn(n) (((unsigned 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 const TIFFFieldInfo *_TIFFGetFieldInfo(size_t *);
extern const TIFFFieldInfo *_TIFFGetExifFieldInfo(size_t *);
extern void _TIFFSetupFieldInfo(TIFF*, const TIFFFieldInfo[], size_t);
extern void _TIFFPrintFieldInfo(TIFF*, FILE*);
extern TIFFDataType _TIFFSampleToTagType(TIFF*);
extern const TIFFFieldInfo* _TIFFFindOrRegisterFieldInfo( TIFF *tif,
ttag_t tag,
TIFFDataType dt );
extern TIFFFieldInfo* _TIFFCreateAnonFieldInfo( TIFF *tif, ttag_t tag,
TIFFDataType dt );
#define _TIFFMergeFieldInfo TIFFMergeFieldInfo
#define _TIFFFindFieldInfo TIFFFindFieldInfo
#define _TIFFFindFieldInfoByName TIFFFindFieldInfoByName
#define _TIFFFieldWithTag TIFFFieldWithTag
#define _TIFFFieldWithName TIFFFieldWithName
#if defined(__cplusplus)
}
#endif
#endif /* _TIFFDIR_ */
/* vim: set ts=8 sts=8 sw=8 noet: */
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