/* $Id: tiff.h,v 1.43 2006/10/05 15:20:40 dron 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 _TIFF_#define	_TIFF_#include "tiffconf.h"/* * Tag Image File Format (TIFF) * * Based on Rev 6.0 from: *    Developer's Desk *    Aldus Corporation *    411 First Ave. South *    Suite 200 *    Seattle, WA  98104 *    206-622-5500 *     *    (http://partners.adobe.com/asn/developer/PDFS/TN/TIFF6.pdf) * * For Big TIFF design notes see the following link *    http://www.remotesensing.org/libtiff/bigtiffdesign.html */#define	TIFF_VERSION	        42#define TIFF_BIGTIFF_VERSION    43#define	TIFF_BIGENDIAN		0x4d4d#define	TIFF_LITTLEENDIAN	0x4949#define	MDI_LITTLEENDIAN        0x5045#define	MDI_BIGENDIAN           0x4550/* * Intrinsic data types required by the file format: * * 8-bit quantities	int8/uint8 * 16-bit quantities	int16/uint16 * 32-bit quantities	int32/uint32 * strings		unsigned char* */#ifndef HAVE_INT8typedef	signed char int8;	/* NB: non-ANSI compilers may not grok */#endiftypedef	unsigned char uint8;#ifndef HAVE_INT16typedef	short int16;#endiftypedef	unsigned short uint16;	/* sizeof (uint16) must == 2 */#if SIZEOF_INT == 4#ifndef HAVE_INT32typedef	int int32;#endiftypedef	unsigned int uint32;	/* sizeof (uint32) must == 4 */#elif SIZEOF_LONG == 4#ifndef HAVE_INT32typedef	long int32;#endiftypedef	unsigned long uint32;	/* sizeof (uint32) must == 4 */#endif/* For TIFFReassignTagToIgnore */enum TIFFIgnoreSense /* IGNORE tag table */{	TIS_STORE,	TIS_EXTRACT,	TIS_EMPTY};/* * TIFF header. */typedef	struct {	uint16	tiff_magic;	/* magic number (defines byte order) */#define TIFF_MAGIC_SIZE		2	uint16	tiff_version;	/* TIFF version number */#define TIFF_VERSION_SIZE	2	uint32	tiff_diroff;	/* byte offset to first directory */#define TIFF_DIROFFSET_SIZE	4} TIFFHeader;/* * TIFF Image File Directories are comprised of a table of field * descriptors of the form shown below.  The table is sorted in * ascending order by tag.  The values associated with each entry are * disjoint and may appear anywhere in the file (so long as they are * placed on a word boundary). * * If the value is 4 bytes or less, then it is placed in the offset * field to save space.  If the value is less than 4 bytes, it is * left-justified in the offset field. */typedef	struct {	uint16		tdir_tag;	/* see below */	uint16		tdir_type;	/* data type; see below */	uint32		tdir_count;	/* number of items; length in spec */	uint32		tdir_offset;	/* byte offset to field data */} TIFFDirEntry;/* * NB: In the comments below, *  - items marked with a + are obsoleted by revision 5.0, *  - items marked with a ! are introduced in revision 6.0. *  - items marked with a % are introduced post revision 6.0. *  - items marked with a $ are obsoleted by revision 6.0. *  - items marked with a & are introduced by Adobe DNG specification. *//* * Tag data type information. * * Note: RATIONALs are the ratio of two 32-bit integer values. */typedef	enum {	TIFF_NOTYPE	= 0,	/* placeholder */	TIFF_BYTE	= 1,	/* 8-bit unsigned integer */	TIFF_ASCII	= 2,	/* 8-bit bytes w/ last byte null */	TIFF_SHORT	= 3,	/* 16-bit unsigned integer */	TIFF_LONG	= 4,	/* 32-bit unsigned integer */	TIFF_RATIONAL	= 5,	/* 64-bit unsigned fraction */	TIFF_SBYTE	= 6,	/* !8-bit signed integer */	TIFF_UNDEFINED	= 7,	/* !8-bit untyped data */	TIFF_SSHORT	= 8,	/* !16-bit signed integer */	TIFF_SLONG	= 9,	/* !32-bit signed integer */	TIFF_SRATIONAL	= 10,	/* !64-bit signed fraction */	TIFF_FLOAT	= 11,	/* !32-bit IEEE floating point */	TIFF_DOUBLE	= 12,	/* !64-bit IEEE floating point */	TIFF_IFD	= 13	/* %32-bit unsigned integer (offset) */} TIFFDataType;/* * TIFF Tag Definitions. */#define	TIFFTAG_SUBFILETYPE		254	/* subfile data descriptor */#define	    FILETYPE_REDUCEDIMAGE	0x1	/* reduced resolution version */#define	    FILETYPE_PAGE		0x2	/* one page of many */#define	    FILETYPE_MASK		0x4	/* transparency mask */#define	TIFFTAG_OSUBFILETYPE		255	/* +kind of data in subfile */#define	    OFILETYPE_IMAGE		1	/* full resolution image data */#define	    OFILETYPE_REDUCEDIMAGE	2	/* reduced size image data */#define	    OFILETYPE_PAGE		3	/* one page of many */#define	TIFFTAG_IMAGEWIDTH		256	/* image width in pixels */#define	TIFFTAG_IMAGELENGTH		257	/* image height in pixels */#define	TIFFTAG_BITSPERSAMPLE		258	/* bits per channel (sample) */#define	TIFFTAG_COMPRESSION		259	/* data compression technique */#define	    COMPRESSION_NONE		1	/* dump mode */#define	    COMPRESSION_CCITTRLE	2	/* CCITT modified Huffman RLE */#define	    COMPRESSION_CCITTFAX3	3	/* CCITT Group 3 fax encoding */#define     COMPRESSION_CCITT_T4        3       /* CCITT T.4 (TIFF 6 name) */#define	    COMPRESSION_CCITTFAX4	4	/* CCITT Group 4 fax encoding */#define     COMPRESSION_CCITT_T6        4       /* CCITT T.6 (TIFF 6 name) */#define	    COMPRESSION_LZW		5       /* Lempel-Ziv  & Welch */#define	    COMPRESSION_OJPEG		6	/* !6.0 JPEG */#define	    COMPRESSION_JPEG		7	/* %JPEG DCT compression */#define	    COMPRESSION_NEXT		32766	/* NeXT 2-bit RLE */#define	    COMPRESSION_CCITTRLEW	32771	/* #1 w/ word alignment */#define	    COMPRESSION_PACKBITS	32773	/* Macintosh RLE */#define	    COMPRESSION_THUNDERSCAN	32809	/* ThunderScan RLE *//* codes 32895-32898 are reserved for ANSI IT8 TIFF/IT <dkelly@apago.com) */#define	    COMPRESSION_IT8CTPAD	32895   /* IT8 CT w/padding */#define	    COMPRESSION_IT8LW		32896   /* IT8 Linework RLE */#define	    COMPRESSION_IT8MP		32897   /* IT8 Monochrome picture */#define	    COMPRESSION_IT8BL		32898   /* IT8 Binary line art *//* compression codes 32908-32911 are reserved for Pixar */#define     COMPRESSION_PIXARFILM	32908   /* Pixar companded 10bit LZW */#define	    COMPRESSION_PIXARLOG	32909   /* Pixar companded 11bit ZIP */#define	    COMPRESSION_DEFLATE		32946	/* Deflate compression */#define     COMPRESSION_ADOBE_DEFLATE   8       /* Deflate compression,						   as recognized by Adobe *//* compression code 32947 is reserved for Oceana Matrix <dev@oceana.com> */#define     COMPRESSION_DCS             32947   /* Kodak DCS encoding */#define	    COMPRESSION_JBIG		34661	/* ISO JBIG */#define     COMPRESSION_SGILOG		34676	/* SGI Log Luminance RLE */#define     COMPRESSION_SGILOG24	34677	/* SGI Log 24-bit packed */#define     COMPRESSION_JP2000          34712   /* Leadtools JPEG2000 */#define	TIFFTAG_PHOTOMETRIC		262	/* photometric interpretation */#define	    PHOTOMETRIC_MINISWHITE	0	/* min value is white */#define	    PHOTOMETRIC_MINISBLACK	1	/* min value is black */#define	    PHOTOMETRIC_RGB		2	/* RGB color model */#define	    PHOTOMETRIC_PALETTE		3	/* color map indexed */#define	    PHOTOMETRIC_MASK		4	/* $holdout mask */#define	    PHOTOMETRIC_SEPARATED	5	/* !color separations */#define	    PHOTOMETRIC_YCBCR		6	/* !CCIR 601 */#define	    PHOTOMETRIC_CIELAB		8	/* !1976 CIE L*a*b* */#define	    PHOTOMETRIC_ICCLAB		9	/* ICC L*a*b* [Adobe TIFF Technote 4] */#define	    PHOTOMETRIC_ITULAB		10	/* ITU L*a*b* */#define     PHOTOMETRIC_LOGL		32844	/* CIE Log2(L) */#define     PHOTOMETRIC_LOGLUV		32845	/* CIE Log2(L) (u',v') */#define	TIFFTAG_THRESHHOLDING		263	/* +thresholding used on data */#define	    THRESHHOLD_BILEVEL		1	/* b&w art scan */#define	    THRESHHOLD_HALFTONE		2	/* or dithered scan */#define	    THRESHHOLD_ERRORDIFFUSE	3	/* usually floyd-steinberg */#define	TIFFTAG_CELLWIDTH		264	/* +dithering matrix width */