src/tiff/tiffio.h

/* $Header$ */

/*
 * 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 _TIFFIO_
#define	_TIFFIO_

/*
 * TIFF I/O Library Definitions.
 */
#include "tiff.h"

/*
 * This define can be used in code that requires
 * compilation-related definitions specific to a
 * version or versions of the library.  Runtime
 * version checking should be done based on the
 * string returned by TIFFGetVersion.
 */
#define	TIFFLIB_VERSION	19970127	/* January 27, 1997 */

/*
 * TIFF is defined as an incomplete type to hide the
 * library's internal data structures from clients.
 */
typedef	struct tiff TIFF;

/*
 * The following typedefs define the intrinsic size of
 * data types used in the *exported* interfaces.  These
 * definitions depend on the proper definition of types
 * in tiff.h.  Note also that the varargs interface used
 * to pass tag types and values uses the types defined in
 * tiff.h directly.
 *
 * NB: ttag_t is unsigned int and not unsigned short because
 *     ANSI C requires that the type before the ellipsis be a
 *     promoted type (i.e. one of int, unsigned int, pointer,
 *     or double) and because we defined pseudo-tags that are
 *     outside the range of legal Aldus-assigned tags.
 * NB: tsize_t is int32 and not uint32 because some functions
 *     return -1.
 * NB: toff_t is not off_t for many reasons; TIFFs max out at
 *     32-bit file offsets being the most important
 */
typedef	uint32 ttag_t;		/* directory tag */
typedef	uint16 tdir_t;		/* directory index */
typedef	uint16 tsample_t;	/* sample number */
typedef	uint32 tstrip_t;	/* strip number */
typedef uint32 ttile_t;		/* tile number */
typedef	int32 tsize_t;		/* i/o size in bytes */
typedef	void* tdata_t;		/* image data ref */
typedef	int32 toff_t;		/* file offset */

#if !defined(__WIN32__) && (defined(_WIN32) || defined(WIN32))
#define __WIN32__
#endif
#if defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows)
#include <windows.h>
#ifdef __WIN32__
DECLARE_HANDLE(thandle_t);	/* Win32 file handle */
#else
typedef	HFILE thandle_t;	/* client data handle */
#endif
#else
typedef	void* thandle_t;	/* client data handle */
#endif

#if defined(__VISAGECPP__)
#define LINKAGEMODE _Optlink
#else
#define LINKAGEMODE
#endif

#ifndef NULL
#define	NULL	0
#endif

/*
 * Flags to pass to TIFFPrintDirectory to control
 * printing of data structures that are potentially
 * very large.   Bit-or these flags to enable printing
 * multiple items.
 */
#define	TIFFPRINT_NONE		0x0		/* no extra info */
#define	TIFFPRINT_STRIPS	0x1		/* strips/tiles info */
#define	TIFFPRINT_CURVES	0x2		/* color/gray response curves */
#define	TIFFPRINT_COLORMAP	0x4		/* colormap */
#define	TIFFPRINT_JPEGQTABLES	0x100		/* JPEG Q matrices */
#define	TIFFPRINT_JPEGACTABLES	0x200		/* JPEG AC tables */
#define	TIFFPRINT_JPEGDCTABLES	0x200		/* JPEG DC tables */

/*
 * RGBA-style image support.
 */
typedef	unsigned char TIFFRGBValue;		/* 8-bit samples */
typedef struct _TIFFRGBAImage TIFFRGBAImage;
/*
 * The image reading and conversion routines invoke
 * ``put routines'' to copy/image/whatever tiles of
 * raw image data.  A default set of routines are
 * provided to convert/copy raw image data to 8-bit
 * packed ABGR format rasters.  Applications can supply
 * alternate routines that unpack the data into a
 * different format or, for example, unpack the data
 * and draw the unpacked raster on the display.
 */
typedef void (LINKAGEMODE *tileContigRoutine)
    (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32,
	unsigned char*);
typedef void (LINKAGEMODE *tileSeparateRoutine)
    (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32,
	unsigned char*, unsigned char*, unsigned char*, unsigned char*);
/*
 * RGBA-reader state.
 */
typedef struct {				/* YCbCr->RGB support */
	TIFFRGBValue* clamptab;			/* range clamping table */
	int*	Cr_r_tab;
	int*	Cb_b_tab;
	int32*	Cr_g_tab;
	int32*	Cb_g_tab;
	float	coeffs[3];			/* cached for repeated use */
} TIFFYCbCrToRGB;

struct _TIFFRGBAImage {
	TIFF*	tif;				/* image handle */
	int	stoponerr;			/* stop on read error */
	int	isContig;			/* data is packed/separate */
	int	alpha;				/* type of alpha data present */
	uint32	width;				/* image width */
	uint32	height;				/* image height */
	uint16	bitspersample;			/* image bits/sample */
	uint16	samplesperpixel;		/* image samples/pixel */
	uint16	orientation;			/* image orientation */
	uint16	photometric;			/* image photometric interp */
	uint16*	redcmap;			/* colormap pallete */
	uint16*	greencmap;
	uint16*	bluecmap;
						/* get image data routine */
	int	(LINKAGEMODE *get)(TIFFRGBAImage*, uint32*, uint32, uint32);
	union {
	    void (*any)(TIFFRGBAImage*);
	    tileContigRoutine	contig;
	    tileSeparateRoutine	separate;
	} put;					/* put decoded strip/tile */
	TIFFRGBValue* Map;			/* sample mapping array */
	uint32** BWmap;				/* black&white map */
	uint32** PALmap;			/* palette image map */
	TIFFYCbCrToRGB* ycbcr;			/* YCbCr conversion state */

        int	row_offset;
        int     col_offset;
};

/*
 * Macros for extracting components from the
 * packed ABGR form returned by TIFFReadRGBAImage.
 */
#define	TIFFGetR(abgr)	((abgr) & 0xff)
#define	TIFFGetG(abgr)	(((abgr) >> 8) & 0xff)
#define	TIFFGetB(abgr)	(((abgr) >> 16) & 0xff)
#define	TIFFGetA(abgr)	(((abgr) >> 24) & 0xff)

/*
 * A CODEC is a software package that implements decoding,
 * encoding, or decoding+encoding of a compression algorithm.
 * The library provides a collection of builtin codecs.
 * More codecs may be registered through calls to the library
 * and/or the builtin implementations may be overridden.
 */
typedef	int (LINKAGEMODE *TIFFInitMethod)(TIFF*, int);
typedef struct {
	char*		name;
	uint16		scheme;
	TIFFInitMethod	init;
} TIFFCodec;

#include <stdio.h>
#include <stdarg.h>

#if defined(__cplusplus)
extern "C" {
#endif
typedef	void (LINKAGEMODE *TIFFErrorHandler)(const char*, const char*, va_list);
typedef	tsize_t (LINKAGEMODE *TIFFReadWriteProc)(thandle_t, tdata_t, tsize_t);
typedef	toff_t (LINKAGEMODE *TIFFSeekProc)(thandle_t, toff_t, int);
typedef	int (LINKAGEMODE *TIFFCloseProc)(thandle_t);
typedef	toff_t (LINKAGEMODE *TIFFSizeProc)(thandle_t);
typedef	int (LINKAGEMODE *TIFFMapFileProc)(thandle_t, tdata_t*, toff_t*);
typedef	void (LINKAGEMODE *TIFFUnmapFileProc)(thandle_t, tdata_t, toff_t);
typedef	void (LINKAGEMODE *TIFFExtendProc)(TIFF*);

extern	const char* TIFFGetVersion(void);

extern	const TIFFCodec* TIFFFindCODEC(uint16);
extern	TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod);
extern	void TIFFUnRegisterCODEC(TIFFCodec*);

extern	tdata_t _TIFFmalloc(tsize_t);
extern	tdata_t _TIFFrealloc(tdata_t, tsize_t);
extern	void _TIFFmemset(tdata_t, int, tsize_t);
extern	void _TIFFmemcpy(tdata_t, const tdata_t, tsize_t);
extern	int _TIFFmemcmp(const tdata_t, const tdata_t, tsize_t);
extern	void _TIFFfree(tdata_t);

extern	void TIFFClose(TIFF*);
extern	int TIFFFlush(TIFF*);
extern	int TIFFFlushData(TIFF*);
extern	int TIFFGetField(TIFF*, ttag_t, ...);
extern	int TIFFVGetField(TIFF*, ttag_t, va_list);
extern	int TIFFGetFieldDefaulted(TIFF*, ttag_t, ...);
extern	int TIFFVGetFieldDefaulted(TIFF*, ttag_t, va_list);
extern	int TIFFReadDirectory(TIFF*);
extern	tsize_t TIFFScanlineSize(TIFF*);
extern	tsize_t TIFFRasterScanlineSize(TIFF*);
extern	tsize_t TIFFStripSize(TIFF*);
extern	tsize_t TIFFVStripSize(TIFF*, uint32);
extern	tsize_t TIFFTileRowSize(TIFF*);
extern	tsize_t TIFFTileSize(TIFF*);
extern	tsize_t TIFFVTileSize(TIFF*, uint32);
extern	uint32 TIFFDefaultStripSize(TIFF*, uint32);
extern	void TIFFDefaultTileSize(TIFF*, uint32*, uint32*);
extern	int TIFFFileno(TIFF*);
extern	int TIFFGetMode(TIFF*);
extern	int TIFFIsTiled(TIFF*);
extern	int TIFFIsByteSwapped(TIFF*);
extern	int TIFFIsUpSampled(TIFF*);
extern	int TIFFIsMSB2LSB(TIFF*);
extern	uint32 TIFFCurrentRow(TIFF*);
extern	tdir_t TIFFCurrentDirectory(TIFF*);
extern	tdir_t TIFFNumberOfDirectories(TIFF*);
extern	uint32 TIFFCurrentDirOffset(TIFF*);
extern	tstrip_t TIFFCurrentStrip(TIFF*);
extern	ttile_t TIFFCurrentTile(TIFF*);
extern	int TIFFReadBufferSetup(TIFF*, tdata_t, tsize_t);
extern	int TIFFWriteBufferSetup(TIFF*, tdata_t, tsize_t);
extern	int TIFFLastDirectory(TIFF*);
extern	int TIFFSetDirectory(TIFF*, tdir_t);
extern	int TIFFSetSubDirectory(TIFF*, uint32);
extern	int TIFFUnlinkDirectory(TIFF*, tdir_t);
extern	int TIFFSetField(TIFF*, ttag_t, ...);
extern	int TIFFVSetField(TIFF*, ttag_t, va_list);
extern	int TIFFWriteDirectory(TIFF *);
extern	int TIFFReassignTagToIgnore(enum TIFFIgnoreSense, int);

#if defined(c_plusplus) || defined(__cplusplus)
extern	void TIFFPrintDirectory(TIFF*, FILE*, long = 0);
extern	int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t = 0);
extern	int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t = 0);
extern	int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0);
#else
extern	void TIFFPrintDirectory(TIFF*, FILE*, long);
extern	int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t);
extern	int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t);
extern	int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int);
#endif

extern	int TIFFReadRGBAStrip(TIFF*, tstrip_t, uint32 * );
extern	int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * );
extern	int TIFFRGBAImageOK(TIFF*, char [1024]);
extern	int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]);
extern	int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32);
extern	void TIFFRGBAImageEnd(TIFFRGBAImage*);
extern	TIFF* TIFFOpen(const char*, const char*);
extern	TIFF* TIFFFdOpen(int, const char*, const char*);
extern	TIFF* TIFFClientOpen(const char*, const char*,
	    thandle_t,
	    TIFFReadWriteProc, TIFFReadWriteProc,
	    TIFFSeekProc, TIFFCloseProc,
	    TIFFSizeProc,
	    TIFFMapFileProc, TIFFUnmapFileProc);
extern	const char* TIFFFileName(TIFF*);
extern	void TIFFError(const char*, const char*, ...);
extern	void TIFFWarning(const char*, const char*, ...);
extern	TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler);
extern	TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler);
extern	TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc);
extern	ttile_t TIFFComputeTile(TIFF*, uint32, uint32, uint32, tsample_t);
extern	int TIFFCheckTile(TIFF*, uint32, uint32, uint32, tsample_t);
extern	ttile_t TIFFNumberOfTiles(TIFF*);
extern	tsize_t TIFFReadTile(TIFF*,
	    tdata_t, uint32, uint32, uint32, tsample_t);
extern	tsize_t TIFFWriteTile(TIFF*,
	    tdata_t, uint32, uint32, uint32, tsample_t);
extern	tstrip_t TIFFComputeStrip(TIFF*, uint32, tsample_t);
extern	tstrip_t TIFFNumberOfStrips(TIFF*);
extern	tsize_t TIFFReadEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
extern	tsize_t TIFFReadRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
extern	tsize_t TIFFReadEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t);
extern	tsize_t TIFFReadRawTile(TIFF*, ttile_t, tdata_t, tsize_t);
extern	tsize_t TIFFWriteEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
extern	tsize_t TIFFWriteRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
extern	tsize_t TIFFWriteEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t);
extern	tsize_t TIFFWriteRawTile(TIFF*, ttile_t, tdata_t, tsize_t);
extern	void TIFFSetWriteOffset(TIFF*, toff_t);
extern	void TIFFSwabShort(uint16*);
extern	void TIFFSwabLong(uint32*);
extern	void TIFFSwabDouble(double*);
extern	void TIFFSwabArrayOfShort(uint16*, unsigned long);
extern	void TIFFSwabArrayOfLong(uint32*, unsigned long);
extern	void TIFFSwabArrayOfDouble(double*, unsigned long);
extern	void TIFFReverseBits(unsigned char *, unsigned long);
extern	const unsigned char* TIFFGetBitRevTable(int);
#if defined(__cplusplus)
}
#endif
#endif /* _TIFFIO_ */
Commit	Line	Data
	1	/* $Header$ */
	2
	3	/*
	4	* Copyright (c) 1988-1997 Sam Leffler
	5	* Copyright (c) 1991-1997 Silicon Graphics, Inc.
	6	*
	7	* Permission to use, copy, modify, distribute, and sell this software and
	8	* its documentation for any purpose is hereby granted without fee, provided
	9	* that (i) the above copyright notices and this permission notice appear in
	10	* all copies of the software and related documentation, and (ii) the names of
	11	* Sam Leffler and Silicon Graphics may not be used in any advertising or
	12	* publicity relating to the software without the specific, prior written
	13	* permission of Sam Leffler and Silicon Graphics.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
	16	* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
	17	* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	18	*
	19	* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
	20	* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
	21	* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	22	* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
	23	* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	24	* OF THIS SOFTWARE.
	25	*/
	26
	27	#ifndef _TIFFIO_
	28	#define _TIFFIO_
	29
	30	/*
	31	* TIFF I/O Library Definitions.
	32	*/
	33	#include "tiff.h"
	34
	35	/*
	36	* This define can be used in code that requires
	37	* compilation-related definitions specific to a
	38	* version or versions of the library. Runtime
	39	* version checking should be done based on the
	40	* string returned by TIFFGetVersion.
	41	*/
	42	#define TIFFLIB_VERSION 19970127 /* January 27, 1997 */
	43
	44	/*
	45	* TIFF is defined as an incomplete type to hide the
	46	* library's internal data structures from clients.
	47	*/
	48	typedef struct tiff TIFF;
	49
	50	/*
	51	* The following typedefs define the intrinsic size of
	52	* data types used in the exported interfaces. These
	53	* definitions depend on the proper definition of types
	54	* in tiff.h. Note also that the varargs interface used
	55	* to pass tag types and values uses the types defined in
	56	* tiff.h directly.
	57	*
	58	* NB: ttag_t is unsigned int and not unsigned short because
	59	* ANSI C requires that the type before the ellipsis be a
	60	* promoted type (i.e. one of int, unsigned int, pointer,
	61	* or double) and because we defined pseudo-tags that are
	62	* outside the range of legal Aldus-assigned tags.
	63	* NB: tsize_t is int32 and not uint32 because some functions
	64	* return -1.
	65	* NB: toff_t is not off_t for many reasons; TIFFs max out at
	66	* 32-bit file offsets being the most important
	67	*/
	68	typedef uint32 ttag_t; /* directory tag */
	69	typedef uint16 tdir_t; /* directory index */
	70	typedef uint16 tsample_t; /* sample number */
	71	typedef uint32 tstrip_t; /* strip number */
	72	typedef uint32 ttile_t; /* tile number */
	73	typedef int32 tsize_t; /* i/o size in bytes */
	74	typedef void* tdata_t; /* image data ref */
	75	typedef int32 toff_t; /* file offset */
	76
	77	#if !defined(__WIN32__) && (defined(_WIN32) \|\| defined(WIN32))
	78	#define __WIN32__
	79	#endif
	80	#if defined(_WINDOWS) \|\| defined(__WIN32__) \|\| defined(_Windows)
	81	#include <windows.h>
	82	#ifdef __WIN32__
	83	DECLARE_HANDLE(thandle_t); /* Win32 file handle */
	84	#else
	85	typedef HFILE thandle_t; /* client data handle */
	86	#endif
	87	#else
	88	typedef void* thandle_t; /* client data handle */
	89	#endif
	90
	91	#if defined(__VISAGECPP__)
	92	#define LINKAGEMODE _Optlink
	93	#else
	94	#define LINKAGEMODE
	95	#endif
	96
	97	#ifndef NULL
	98	#define NULL 0
	99	#endif
	100
	101	/*
	102	* Flags to pass to TIFFPrintDirectory to control
	103	* printing of data structures that are potentially
	104	* very large. Bit-or these flags to enable printing
	105	* multiple items.
	106	*/
	107	#define TIFFPRINT_NONE 0x0 /* no extra info */
	108	#define TIFFPRINT_STRIPS 0x1 /* strips/tiles info */
	109	#define TIFFPRINT_CURVES 0x2 /* color/gray response curves */
	110	#define TIFFPRINT_COLORMAP 0x4 /* colormap */
	111	#define TIFFPRINT_JPEGQTABLES 0x100 /* JPEG Q matrices */
	112	#define TIFFPRINT_JPEGACTABLES 0x200 /* JPEG AC tables */
	113	#define TIFFPRINT_JPEGDCTABLES 0x200 /* JPEG DC tables */
	114
	115	/*
	116	* RGBA-style image support.
	117	*/
	118	typedef unsigned char TIFFRGBValue; /* 8-bit samples */
	119	typedef struct _TIFFRGBAImage TIFFRGBAImage;
	120	/*
	121	* The image reading and conversion routines invoke
	122	* ``put routines'' to copy/image/whatever tiles of
	123	* raw image data. A default set of routines are
	124	* provided to convert/copy raw image data to 8-bit
	125	* packed ABGR format rasters. Applications can supply
	126	* alternate routines that unpack the data into a
	127	* different format or, for example, unpack the data
	128	* and draw the unpacked raster on the display.
	129	*/
	130	typedef void (LINKAGEMODE *tileContigRoutine)
	131	(TIFFRGBAImage, uint32, uint32, uint32, uint32, uint32, int32, int32,
	132	unsigned char*);
	133	typedef void (LINKAGEMODE *tileSeparateRoutine)
	134	(TIFFRGBAImage, uint32, uint32, uint32, uint32, uint32, int32, int32,
	135	unsigned char, unsigned char, unsigned char, unsigned char);
	136	/*
	137	* RGBA-reader state.
	138	*/
	139	typedef struct { /* YCbCr->RGB support */
	140	TIFFRGBValue* clamptab; /* range clamping table */
	141	int* Cr_r_tab;
	142	int* Cb_b_tab;
	143	int32* Cr_g_tab;
	144	int32* Cb_g_tab;
	145	float coeffs[3]; /* cached for repeated use */
	146	} TIFFYCbCrToRGB;
	147
	148	struct _TIFFRGBAImage {
	149	TIFF* tif; /* image handle */
	150	int stoponerr; /* stop on read error */
	151	int isContig; /* data is packed/separate */
	152	int alpha; /* type of alpha data present */
	153	uint32 width; /* image width */
	154	uint32 height; /* image height */
	155	uint16 bitspersample; /* image bits/sample */
	156	uint16 samplesperpixel; /* image samples/pixel */
	157	uint16 orientation; /* image orientation */
	158	uint16 photometric; /* image photometric interp */
	159	uint16* redcmap; /* colormap pallete */
	160	uint16* greencmap;
	161	uint16* bluecmap;
	162	/* get image data routine */
	163	int (LINKAGEMODE get)(TIFFRGBAImage, uint32*, uint32, uint32);
	164	union {
	165	void (any)(TIFFRGBAImage);
	166	tileContigRoutine contig;
	167	tileSeparateRoutine separate;
	168	} put; /* put decoded strip/tile */
	169	TIFFRGBValue* Map; /* sample mapping array */
	170	uint32** BWmap; /* black&white map */
	171	uint32** PALmap; /* palette image map */
	172	TIFFYCbCrToRGB* ycbcr; /* YCbCr conversion state */
	173
	174	int row_offset;
	175	int col_offset;
	176	};
	177
	178	/*
	179	* Macros for extracting components from the
	180	* packed ABGR form returned by TIFFReadRGBAImage.
	181	*/
	182	#define TIFFGetR(abgr) ((abgr) & 0xff)
	183	#define TIFFGetG(abgr) (((abgr) >> 8) & 0xff)
	184	#define TIFFGetB(abgr) (((abgr) >> 16) & 0xff)
	185	#define TIFFGetA(abgr) (((abgr) >> 24) & 0xff)
	186
	187	/*
	188	* A CODEC is a software package that implements decoding,
	189	* encoding, or decoding+encoding of a compression algorithm.
	190	* The library provides a collection of builtin codecs.
	191	* More codecs may be registered through calls to the library
	192	* and/or the builtin implementations may be overridden.
	193	*/
	194	typedef int (LINKAGEMODE TIFFInitMethod)(TIFF, int);
	195	typedef struct {
	196	char* name;
	197	uint16 scheme;
	198	TIFFInitMethod init;
	199	} TIFFCodec;
	200
	201	#include <stdio.h>
	202	#include <stdarg.h>
	203
	204	#if defined(__cplusplus)
	205	extern "C" {
	206	#endif
	207	typedef void (LINKAGEMODE TIFFErrorHandler)(const char, const char*, va_list);
	208	typedef tsize_t (LINKAGEMODE *TIFFReadWriteProc)(thandle_t, tdata_t, tsize_t);
	209	typedef toff_t (LINKAGEMODE *TIFFSeekProc)(thandle_t, toff_t, int);
	210	typedef int (LINKAGEMODE *TIFFCloseProc)(thandle_t);
	211	typedef toff_t (LINKAGEMODE *TIFFSizeProc)(thandle_t);
	212	typedef int (LINKAGEMODE TIFFMapFileProc)(thandle_t, tdata_t, toff_t*);
	213	typedef void (LINKAGEMODE *TIFFUnmapFileProc)(thandle_t, tdata_t, toff_t);
	214	typedef void (LINKAGEMODE TIFFExtendProc)(TIFF);
	215
	216	extern const char* TIFFGetVersion(void);
	217
	218	extern const TIFFCodec* TIFFFindCODEC(uint16);
	219	extern TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod);
	220	extern void TIFFUnRegisterCODEC(TIFFCodec*);
	221
	222	extern tdata_t _TIFFmalloc(tsize_t);
	223	extern tdata_t _TIFFrealloc(tdata_t, tsize_t);
	224	extern void _TIFFmemset(tdata_t, int, tsize_t);
	225	extern void _TIFFmemcpy(tdata_t, const tdata_t, tsize_t);
	226	extern int _TIFFmemcmp(const tdata_t, const tdata_t, tsize_t);
	227	extern void _TIFFfree(tdata_t);
	228
	229	extern void TIFFClose(TIFF*);
	230	extern int TIFFFlush(TIFF*);
	231	extern int TIFFFlushData(TIFF*);
	232	extern int TIFFGetField(TIFF*, ttag_t, ...);
	233	extern int TIFFVGetField(TIFF*, ttag_t, va_list);
	234	extern int TIFFGetFieldDefaulted(TIFF*, ttag_t, ...);
	235	extern int TIFFVGetFieldDefaulted(TIFF*, ttag_t, va_list);
	236	extern int TIFFReadDirectory(TIFF*);
	237	extern tsize_t TIFFScanlineSize(TIFF*);
	238	extern tsize_t TIFFRasterScanlineSize(TIFF*);
	239	extern tsize_t TIFFStripSize(TIFF*);
	240	extern tsize_t TIFFVStripSize(TIFF*, uint32);
	241	extern tsize_t TIFFTileRowSize(TIFF*);
	242	extern tsize_t TIFFTileSize(TIFF*);
	243	extern tsize_t TIFFVTileSize(TIFF*, uint32);
	244	extern uint32 TIFFDefaultStripSize(TIFF*, uint32);
	245	extern void TIFFDefaultTileSize(TIFF, uint32, uint32*);
	246	extern int TIFFFileno(TIFF*);
	247	extern int TIFFGetMode(TIFF*);
	248	extern int TIFFIsTiled(TIFF*);
	249	extern int TIFFIsByteSwapped(TIFF*);
	250	extern int TIFFIsUpSampled(TIFF*);
	251	extern int TIFFIsMSB2LSB(TIFF*);
	252	extern uint32 TIFFCurrentRow(TIFF*);
	253	extern tdir_t TIFFCurrentDirectory(TIFF*);
	254	extern tdir_t TIFFNumberOfDirectories(TIFF*);
	255	extern uint32 TIFFCurrentDirOffset(TIFF*);
	256	extern tstrip_t TIFFCurrentStrip(TIFF*);
	257	extern ttile_t TIFFCurrentTile(TIFF*);
	258	extern int TIFFReadBufferSetup(TIFF*, tdata_t, tsize_t);
	259	extern int TIFFWriteBufferSetup(TIFF*, tdata_t, tsize_t);
	260	extern int TIFFLastDirectory(TIFF*);
	261	extern int TIFFSetDirectory(TIFF*, tdir_t);
	262	extern int TIFFSetSubDirectory(TIFF*, uint32);
	263	extern int TIFFUnlinkDirectory(TIFF*, tdir_t);
	264	extern int TIFFSetField(TIFF*, ttag_t, ...);
	265	extern int TIFFVSetField(TIFF*, ttag_t, va_list);
	266	extern int TIFFWriteDirectory(TIFF *);
	267	extern int TIFFReassignTagToIgnore(enum TIFFIgnoreSense, int);
	268
	269	#if defined(c_plusplus) \|\| defined(__cplusplus)
	270	extern void TIFFPrintDirectory(TIFF, FILE, long = 0);
	271	extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t = 0);
	272	extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t = 0);
	273	extern int TIFFReadRGBAImage(TIFF, uint32, uint32, uint32, int = 0);
	274	#else
	275	extern void TIFFPrintDirectory(TIFF, FILE, long);
	276	extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t);
	277	extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t);
	278	extern int TIFFReadRGBAImage(TIFF, uint32, uint32, uint32, int);
	279	#endif
	280
	281	extern int TIFFReadRGBAStrip(TIFF, tstrip_t, uint32 );
	282	extern int TIFFReadRGBATile(TIFF, uint32, uint32, uint32 );
	283	extern int TIFFRGBAImageOK(TIFF*, char [1024]);
	284	extern int TIFFRGBAImageBegin(TIFFRGBAImage, TIFF, int, char [1024]);
	285	extern int TIFFRGBAImageGet(TIFFRGBAImage, uint32, uint32, uint32);
	286	extern void TIFFRGBAImageEnd(TIFFRGBAImage*);
	287	extern TIFF* TIFFOpen(const char, const char);
	288	extern TIFF* TIFFFdOpen(int, const char, const char);
	289	extern TIFF* TIFFClientOpen(const char, const char,
	290	thandle_t,
	291	TIFFReadWriteProc, TIFFReadWriteProc,
	292	TIFFSeekProc, TIFFCloseProc,
	293	TIFFSizeProc,
	294	TIFFMapFileProc, TIFFUnmapFileProc);
	295	extern const char* TIFFFileName(TIFF*);
	296	extern void TIFFError(const char, const char, ...);
	297	extern void TIFFWarning(const char, const char, ...);
	298	extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler);
	299	extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler);
	300	extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc);
	301	extern ttile_t TIFFComputeTile(TIFF*, uint32, uint32, uint32, tsample_t);
	302	extern int TIFFCheckTile(TIFF*, uint32, uint32, uint32, tsample_t);
	303	extern ttile_t TIFFNumberOfTiles(TIFF*);
	304	extern tsize_t TIFFReadTile(TIFF*,
	305	tdata_t, uint32, uint32, uint32, tsample_t);
	306	extern tsize_t TIFFWriteTile(TIFF*,
	307	tdata_t, uint32, uint32, uint32, tsample_t);
	308	extern tstrip_t TIFFComputeStrip(TIFF*, uint32, tsample_t);
	309	extern tstrip_t TIFFNumberOfStrips(TIFF*);
	310	extern tsize_t TIFFReadEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
	311	extern tsize_t TIFFReadRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
	312	extern tsize_t TIFFReadEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t);
	313	extern tsize_t TIFFReadRawTile(TIFF*, ttile_t, tdata_t, tsize_t);
	314	extern tsize_t TIFFWriteEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
	315	extern tsize_t TIFFWriteRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
	316	extern tsize_t TIFFWriteEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t);
	317	extern tsize_t TIFFWriteRawTile(TIFF*, ttile_t, tdata_t, tsize_t);
	318	extern void TIFFSetWriteOffset(TIFF*, toff_t);
	319	extern void TIFFSwabShort(uint16*);
	320	extern void TIFFSwabLong(uint32*);
	321	extern void TIFFSwabDouble(double*);
	322	extern void TIFFSwabArrayOfShort(uint16*, unsigned long);
	323	extern void TIFFSwabArrayOfLong(uint32*, unsigned long);
	324	extern void TIFFSwabArrayOfDouble(double*, unsigned long);
	325	extern void TIFFReverseBits(unsigned char *, unsigned long);
	326	extern const unsigned char* TIFFGetBitRevTable(int);
	327	#if defined(__cplusplus)
	328	}
	329	#endif
	330	#endif /* _TIFFIO_ */