/* $Id: tiffio.h,v 1.91 2012-07-29 15:45:29 tgl 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 _TIFFIO_
#define _TIFFIO_

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

/*
 * 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, and BigTIFF maxes out at 64-bit
 *     offsets being the most important, and to ensure use of
 *     a consistently unsigned type across architectures.
 *     Prior to libtiff 4.0, this was an unsigned 32 bit type.
 */
/*
 * this is the machine addressing size type, only it's signed, so make it
 * int32 on 32bit machines, int64 on 64bit machines
 */
typedef TIFF_SSIZE_T tmsize_t;
typedef uint64       toff_t; /* file offset */
/* the following are deprecated and should be replaced by their defining
   counterparts */
typedef uint32    ttag_t; /* directory tag */
typedef uint16    tdir_t; /* directory index */
typedef uint16    tsample_t; /* sample number */
typedef uint32    tstrile_t; /* strip or tile number */
typedef tstrile_t tstrip_t; /* strip number */
typedef tstrile_t ttile_t; /* tile number */
typedef tmsize_t  tsize_t; /* i/o size in bytes */
typedef void*     tdata_t; /* image data ref */

#if ! defined(__WIN32__) && (defined(_WIN32) || defined(WIN32))
#define __WIN32__
#endif

/*
 * On windows you should define USE_WIN32_FILEIO if you are using tif_win32.c
 * or AVOID_WIN32_FILEIO if you are using something else (like tif_unix.c).
 *
 * By default tif_unix.c is assumed.
 */

#if defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows)
#if ! defined(__CYGWIN) && ! defined(AVOID_WIN32_FILEIO) && ! defined(USE_WIN32_FILEIO)
#define AVOID_WIN32_FILEIO
#endif
#endif

#if defined(USE_WIN32_FILEIO)
#define VC_EXTRALEAN
#include <windows.h>
#ifdef __WIN32__
DECLARE_HANDLE(thandle_t); /* Win32 file handle */
#else
typedef HFILE thandle_t; /* client data handle */
#endif /* __WIN32__ */
#else
typedef void* thandle_t; /* client data handle */
#endif /* USE_WIN32_FILEIO */

/*
 * 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 */

/* 
 * Colour conversion stuff
 */

/* reference white */
#define D65_X0 (95.0470F)
#define D65_Y0 (100.0F)
#define D65_Z0 (108.8827F)

#define D50_X0 (96.4250F)
#define D50_Y0 (100.0F)
#define D50_Z0 (82.4680F)

/* Structure for holding information about a display device. */

typedef unsigned char TIFFRGBValue; /* 8-bit samples */

typedef struct {
    float  d_mat[3][3]; /* XYZ -> luminance matrix */
    float  d_YCR; /* Light o/p for reference white */
    float  d_YCG;
    float  d_YCB;
    uint32 d_Vrwr; /* Pixel values for ref. white */
    uint32 d_Vrwg;
    uint32 d_Vrwb;
    float  d_Y0R; /* Residual light for black pixel */
    float  d_Y0G;
    float  d_Y0B;
    float  d_gammaR; /* Gamma values for the three guns */
    float  d_gammaG;
    float  d_gammaB;
} TIFFDisplay;

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;
    int32*        Y_tab;
} TIFFYCbCrToRGB;

typedef struct { /* CIE Lab 1976->RGB support */
    int range; /* Size of conversion table */
#define CIELABTORGB_TABLE_RANGE 1500
    float       rstep, gstep, bstep;
    float       X0, Y0, Z0; /* Reference white point */
    TIFFDisplay display;
    float       Yr2r[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yr to r */
    float       Yg2g[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yg to g */
    float       Yb2b[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yb to b */
} TIFFCIELabToRGB;

/*
 * RGBA-style image support.
 */
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 (*tileContigRoutine)(TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32,
                                  unsigned char*);
typedef void (*tileSeparateRoutine)(TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32,
                                    unsigned char*, unsigned char*, unsigned char*, unsigned char*);

/*
 * RGBA-reader state.
 */
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  req_orientation; /* requested orientation */
    uint16  photometric; /* image photometric interp */
    uint16* redcmap; /* colormap pallete */
    uint16* greencmap;
    uint16* bluecmap;
    /* get image data routine */
    int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32);

    /* put decoded strip/tile */
    union {
        void (*any)(TIFFRGBAImage*);
        tileContigRoutine   contig;
        tileSeparateRoutine separate;
    } put;

    TIFFRGBValue*    Map; /* sample mapping array */
    uint32**         BWmap; /* black&white map */
    uint32**         PALmap; /* palette image map */
    TIFFYCbCrToRGB*  ycbcr; /* YCbCr conversion state */
    TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */

    uint8* UaToAa; /* Unassociated alpha to associated alpha convertion LUT */
    uint8* Bitdepth16To8; /* LUT for conversion from 16bit to 8bit values */

    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 (*TIFFInitMethod)(TIFF*, int);

typedef struct {
    char*          name;
    uint16         scheme;
    TIFFInitMethod init;
} TIFFCodec;

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

/* share internal LogLuv conversion routines? */
#ifndef LOGLUV_PUBLIC
#define LOGLUV_PUBLIC 1
#endif

#if ! defined(__GNUC__) && ! defined(__attribute__)
#define __attribute__(x) /*nothing*/
#endif

#if defined(c_plusplus) || defined(__cplusplus)
extern "C" {
#endif
typedef void (*TIFFErrorHandler)(const char*, const char*, va_list);
typedef void (*TIFFErrorHandlerExt)(thandle_t, const char*, const char*, va_list);
typedef tmsize_t (*TIFFReadWriteProc)(thandle_t, void*, tmsize_t);
typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int);
typedef int (*TIFFCloseProc)(thandle_t);
typedef toff_t (*TIFFSizeProc)(thandle_t);
typedef int (*TIFFMapFileProc)(thandle_t, void** base, toff_t* size);
typedef void (*TIFFUnmapFileProc)(thandle_t, void* base, toff_t size);
typedef void (*TIFFExtendProc)(TIFF*);

extern const char* TIFFGetVersion(void);

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

/*
 * Auxiliary functions.
 */

extern void* _TIFFmalloc(tmsize_t s);
extern void* _TIFFrealloc(void* p, tmsize_t s);
extern void  _TIFFmemset(void* p, int v, tmsize_t c);
extern void  _TIFFmemcpy(void* d, const void* s, tmsize_t c);
extern int   _TIFFmemcmp(const void* p1, const void* p2, tmsize_t c);
extern void  _TIFFfree(void* p);

/*
** Stuff, related to tag handling and creating custom tags.
*/
extern int    TIFFGetTagListCount(TIFF*);
extern uint32 TIFFGetTagListEntry(TIFF*, int tag_index);

#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 */
#define TIFF_VARIABLE2 -3 /* marker for uint32 var-length tags */

#define FIELD_CUSTOM 65

typedef struct _TIFFField      TIFFField;
typedef struct _TIFFFieldArray TIFFFieldArray;

extern const TIFFField* TIFFFindField(TIFF*, uint32, TIFFDataType);
extern const TIFFField* TIFFFieldWithTag(TIFF*, uint32);
extern const TIFFField* TIFFFieldWithName(TIFF*, const char*);

extern uint32       TIFFFieldTag(const TIFFField*);
extern const char*  TIFFFieldName(const TIFFField*);
extern TIFFDataType TIFFFieldDataType(const TIFFField*);
extern int          TIFFFieldPassCount(const TIFFField*);
extern int          TIFFFieldReadCount(const TIFFField*);
extern int          TIFFFieldWriteCount(const TIFFField*);

typedef int (*TIFFVSetMethod)(TIFF*, uint32, va_list);
typedef int (*TIFFVGetMethod)(TIFF*, uint32, va_list);
typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long);

typedef struct {
    TIFFVSetMethod  vsetfield; /* tag set routine */
    TIFFVGetMethod  vgetfield; /* tag get routine */
    TIFFPrintMethod printdir; /* directory print routine */
} TIFFTagMethods;

extern TIFFTagMethods* TIFFAccessTagMethods(TIFF*);
extern void*           TIFFGetClientInfo(TIFF*, const char*);
extern void            TIFFSetClientInfo(TIFF*, void*, const char*);

extern void              TIFFCleanup(TIFF* tif);
extern void              TIFFClose(TIFF* tif);
extern int               TIFFFlush(TIFF* tif);
extern int               TIFFFlushData(TIFF* tif);
extern int               TIFFGetField(TIFF* tif, uint32 tag, ...);
extern int               TIFFVGetField(TIFF* tif, uint32 tag, va_list ap);
extern int               TIFFGetFieldDefaulted(TIFF* tif, uint32 tag, ...);
extern int               TIFFVGetFieldDefaulted(TIFF* tif, uint32 tag, va_list ap);
extern int               TIFFReadDirectory(TIFF* tif);
extern int               TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, const TIFFFieldArray* infoarray);
extern int               TIFFReadEXIFDirectory(TIFF* tif, toff_t diroff);
extern uint64            TIFFScanlineSize64(TIFF* tif);
extern tmsize_t          TIFFScanlineSize(TIFF* tif);
extern uint64            TIFFRasterScanlineSize64(TIFF* tif);
extern tmsize_t          TIFFRasterScanlineSize(TIFF* tif);
extern uint64            TIFFStripSize64(TIFF* tif);
extern tmsize_t          TIFFStripSize(TIFF* tif);
extern uint64            TIFFRawStripSize64(TIFF* tif, uint32 strip);
extern tmsize_t          TIFFRawStripSize(TIFF* tif, uint32 strip);
extern uint64            TIFFVStripSize64(TIFF* tif, uint32 nrows);
extern tmsize_t          TIFFVStripSize(TIFF* tif, uint32 nrows);
extern uint64            TIFFTileRowSize64(TIFF* tif);
extern tmsize_t          TIFFTileRowSize(TIFF* tif);
extern uint64            TIFFTileSize64(TIFF* tif);
extern tmsize_t          TIFFTileSize(TIFF* tif);
extern uint64            TIFFVTileSize64(TIFF* tif, uint32 nrows);
extern tmsize_t          TIFFVTileSize(TIFF* tif, uint32 nrows);
extern uint32            TIFFDefaultStripSize(TIFF* tif, uint32 request);
extern void              TIFFDefaultTileSize(TIFF*, uint32*, uint32*);
extern int               TIFFFileno(TIFF*);
extern int               TIFFSetFileno(TIFF*, int);
extern thandle_t         TIFFClientdata(TIFF*);
extern thandle_t         TIFFSetClientdata(TIFF*, thandle_t);
extern int               TIFFGetMode(TIFF*);
extern int               TIFFSetMode(TIFF*, int);
extern int               TIFFIsTiled(TIFF*);
extern int               TIFFIsByteSwapped(TIFF*);
extern int               TIFFIsUpSampled(TIFF*);
extern int               TIFFIsMSB2LSB(TIFF*);
extern int               TIFFIsBigEndian(TIFF*);
extern TIFFReadWriteProc TIFFGetReadProc(TIFF*);
extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*);
extern TIFFSeekProc      TIFFGetSeekProc(TIFF*);
extern TIFFCloseProc     TIFFGetCloseProc(TIFF*);
extern TIFFSizeProc      TIFFGetSizeProc(TIFF*);
extern TIFFMapFileProc   TIFFGetMapFileProc(TIFF*);
extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*);
extern uint32            TIFFCurrentRow(TIFF*);
extern uint16            TIFFCurrentDirectory(TIFF*);
extern uint16            TIFFNumberOfDirectories(TIFF*);
extern uint64            TIFFCurrentDirOffset(TIFF*);
extern uint32            TIFFCurrentStrip(TIFF*);
extern uint32            TIFFCurrentTile(TIFF* tif);
extern int               TIFFReadBufferSetup(TIFF* tif, void* bp, tmsize_t size);
extern int               TIFFWriteBufferSetup(TIFF* tif, void* bp, tmsize_t size);
extern int               TIFFSetupStrips(TIFF*);
extern int               TIFFWriteCheck(TIFF*, int, const char*);
extern void              TIFFFreeDirectory(TIFF*);
extern int               TIFFCreateDirectory(TIFF*);
extern int               TIFFCreateCustomDirectory(TIFF*, const TIFFFieldArray*);
extern int               TIFFCreateEXIFDirectory(TIFF*);
extern int               TIFFLastDirectory(TIFF*);
extern int               TIFFSetDirectory(TIFF*, uint16);
extern int               TIFFSetSubDirectory(TIFF*, uint64);
extern int               TIFFUnlinkDirectory(TIFF*, uint16);
extern int               TIFFSetField(TIFF*, uint32, ...);
extern int               TIFFVSetField(TIFF*, uint32, va_list);
extern int               TIFFUnsetField(TIFF*, uint32);
extern int               TIFFWriteDirectory(TIFF*);
extern int               TIFFWriteCustomDirectory(TIFF*, uint64*);
extern int               TIFFCheckpointDirectory(TIFF*);
extern int               TIFFRewriteDirectory(TIFF*);

#if defined(c_plusplus) || defined(__cplusplus)
extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0);
extern int  TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample = 0);
extern int  TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample = 0);
extern int  TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0);
extern int  TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*,
                                      int = ORIENTATION_BOTLEFT, int = 0);
#else
extern void   TIFFPrintDirectory(TIFF*, FILE*, long);
extern int    TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample);
extern int    TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample);
extern int    TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int);
extern int    TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int);
#endif

extern int   TIFFReadRGBAStrip(TIFF*, uint32, 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*);
#ifdef __WIN32__
extern TIFF* TIFFOpenW(const wchar_t*, const char*);
#endif /* __WIN32__ */
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 const char*          TIFFSetFileName(TIFF*, const char*);
extern void                 TIFFError(const char*, const char*, ...) __attribute__((__format__(__printf__, 2, 3)));
extern void                 TIFFErrorExt(thandle_t, const char*, const char*, ...) __attribute__((__format__(__printf__, 3, 4)));
extern void                 TIFFWarning(const char*, const char*, ...) __attribute__((__format__(__printf__, 2, 3)));
extern void                 TIFFWarningExt(thandle_t, const char*, const char*, ...) __attribute__((__format__(__printf__, 3, 4)));
extern TIFFErrorHandler     TIFFSetErrorHandler(TIFFErrorHandler);
extern TIFFErrorHandlerExt  TIFFSetErrorHandlerExt(TIFFErrorHandlerExt);
extern TIFFErrorHandler     TIFFSetWarningHandler(TIFFErrorHandler);
extern TIFFErrorHandlerExt  TIFFSetWarningHandlerExt(TIFFErrorHandlerExt);
extern TIFFExtendProc       TIFFSetTagExtender(TIFFExtendProc);
extern uint32               TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s);
extern int                  TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s);
extern uint32               TIFFNumberOfTiles(TIFF*);
extern tmsize_t             TIFFReadTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s);
extern tmsize_t             TIFFWriteTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s);
extern uint32               TIFFComputeStrip(TIFF*, uint32, uint16);
extern uint32               TIFFNumberOfStrips(TIFF*);
extern tmsize_t             TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size);
extern tmsize_t             TIFFReadRawStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size);
extern tmsize_t             TIFFReadEncodedTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size);
extern tmsize_t             TIFFReadRawTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size);
extern tmsize_t             TIFFWriteEncodedStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc);
extern tmsize_t             TIFFWriteRawStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc);
extern tmsize_t             TIFFWriteEncodedTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc);
extern tmsize_t             TIFFWriteRawTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc);
extern int                  TIFFDataWidth(TIFFDataType); /* table of tag datatype widths */
extern void                 TIFFSetWriteOffset(TIFF* tif, toff_t off);
extern void                 TIFFSwabShort(uint16*);
extern void                 TIFFSwabLong(uint32*);
extern void                 TIFFSwabLong8(uint64*);
extern void                 TIFFSwabFloat(float*);
extern void                 TIFFSwabDouble(double*);
extern void                 TIFFSwabArrayOfShort(uint16* wp, tmsize_t n);
extern void                 TIFFSwabArrayOfTriples(uint8* tp, tmsize_t n);
extern void                 TIFFSwabArrayOfLong(uint32* lp, tmsize_t n);
extern void                 TIFFSwabArrayOfLong8(uint64* lp, tmsize_t n);
extern void                 TIFFSwabArrayOfFloat(float* fp, tmsize_t n);
extern void                 TIFFSwabArrayOfDouble(double* dp, tmsize_t n);
extern void                 TIFFReverseBits(uint8* cp, tmsize_t n);
extern const unsigned char* TIFFGetBitRevTable(int);

#ifdef LOGLUV_PUBLIC
#define U_NEU 0.210526316
#define V_NEU 0.473684211
#define UVSCALE 410.
extern double LogL16toY(int);
extern double LogL10toY(int);
extern void   XYZtoRGB24(float*, uint8*);
extern int    uv_decode(double*, double*, int);
extern void   LogLuv24toXYZ(uint32, float*);
extern void   LogLuv32toXYZ(uint32, float*);
#if defined(c_plusplus) || defined(__cplusplus)
extern int    LogL16fromY(double, int = SGILOGENCODE_NODITHER);
extern int    LogL10fromY(double, int = SGILOGENCODE_NODITHER);
extern int    uv_encode(double, double, int = SGILOGENCODE_NODITHER);
extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER);
extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER);
#else
extern int    LogL16fromY(double, int);
extern int    LogL10fromY(double, int);
extern int    uv_encode(double, double, int);
extern uint32 LogLuv24fromXYZ(float*, int);
extern uint32 LogLuv32fromXYZ(float*, int);
#endif
#endif /* LOGLUV_PUBLIC */

extern int  TIFFCIELabToRGBInit(TIFFCIELabToRGB*, const TIFFDisplay*, float*);
extern void TIFFCIELabToXYZ(TIFFCIELabToRGB*, uint32, int32, int32,
                            float*, float*, float*);
extern void TIFFXYZToRGB(TIFFCIELabToRGB*, float, float, float,
                         uint32*, uint32*, uint32*);

extern int  TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*);
extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB*, uint32, int32, int32,
                           uint32*, uint32*, uint32*);

/****************************************************************************
 *               O B S O L E T E D    I N T E R F A C E S
 *
 * Don't use this stuff in your applications, it may be removed in the future
 * libtiff versions.
 ****************************************************************************/
typedef struct {
    ttag_t         field_tag; /* field's tag */
    short          field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */
    short          field_writecount; /* write count/TIFF_VARIABLE */
    TIFFDataType   field_type; /* type of associated data */
    unsigned short field_bit; /* bit in fieldsset bit vector */
    unsigned char  field_oktochange; /* if true, can change while writing */
    unsigned char  field_passcount; /* if true, pass dir count on set */
    char*          field_name; /* ASCII name */
} TIFFFieldInfo;

extern int TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], uint32);

#if defined(c_plusplus) || defined(__cplusplus)
}
#endif

#endif /* _TIFFIO_ */

/* vim: set ts=8 sts=8 sw=8 noet: */
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 8
 * fill-column: 78
 * End:
 */
