src/tiff/libtiff/tiffio.h

   1 /* $Id$ */
   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 #include "tiffvers.h"
  35
  36 /*
  37  * TIFF is defined as an incomplete type to hide the
  38  * library's internal data structures from clients.
  39  */
  40 typedef struct tiff TIFF;
  41
  42 /*
  43  * The following typedefs define the intrinsic size of
  44  * data types used in the *exported* interfaces.  These
  45  * definitions depend on the proper definition of types
  46  * in tiff.h.  Note also that the varargs interface used
  47  * to pass tag types and values uses the types defined in
  48  * tiff.h directly.
  49  *
  50  * NB: ttag_t is unsigned int and not unsigned short because
  51  *     ANSI C requires that the type before the ellipsis be a
  52  *     promoted type (i.e. one of int, unsigned int, pointer,
  53  *     or double) and because we defined pseudo-tags that are
  54  *     outside the range of legal Aldus-assigned tags.
  55  * NB: tsize_t is int32 and not uint32 because some functions
  56  *     return -1.
  57  * NB: toff_t is not off_t for many reasons; TIFFs max out at
  58  *     32-bit file offsets, and BigTIFF maxes out at 64-bit
  59  *     offsets being the most important, and to ensure use of
  60  *     a consistently unsigned type across architectures.
  61  *     Prior to libtiff 4.0, this was an unsigned 32 bit type.
  62  */
  63 /*
  64  * this is the machine addressing size type, only it's signed, so make it
  65  * int32 on 32bit machines, int64 on 64bit machines
  66  */
  67 typedef TIFF_SSIZE_T tmsize_t;
  68 typedef uint64 toff_t;          /* file offset */
  69 /* the following are deprecated and should be replaced by their defining
  70    counterparts */
  71 typedef uint32 ttag_t;          /* directory tag */
  72 typedef uint16 tdir_t;          /* directory index */
  73 typedef uint16 tsample_t;       /* sample number */
  74 typedef uint32 tstrile_t;       /* strip or tile number */
  75 typedef tstrile_t tstrip_t;     /* strip number */
  76 typedef tstrile_t ttile_t;      /* tile number */
  77 typedef tmsize_t tsize_t;       /* i/o size in bytes */
  78 typedef void* tdata_t;          /* image data ref */
  79
  80 #if !defined(__WIN32__) && (defined(_WIN32) || defined(WIN32))
  81 #define __WIN32__
  82 #endif
  83
  84 /*
  85  * On windows you should define USE_WIN32_FILEIO if you are using tif_win32.c
  86  * or AVOID_WIN32_FILEIO if you are using something else (like tif_unix.c).
  87  *
  88  * By default tif_unix.c is assumed.
  89  */
  90
  91 #if defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows)
  92 #  if !defined(__CYGWIN) && !defined(AVOID_WIN32_FILEIO) && !defined(USE_WIN32_FILEIO)
  93 #    define AVOID_WIN32_FILEIO
  94 #  endif
  95 #endif
  96
  97 #if defined(USE_WIN32_FILEIO)
  98 # define VC_EXTRALEAN
  99 # include <windows.h>
 100 # ifdef __WIN32__
 101 DECLARE_HANDLE(thandle_t);     /* Win32 file handle */
 102 # else
 103 typedef HFILE thandle_t;       /* client data handle */
 104 # endif /* __WIN32__ */
 105 #else
 106 typedef void* thandle_t;       /* client data handle */
 107 #endif /* USE_WIN32_FILEIO */
 108
 109 /*
 110  * Flags to pass to TIFFPrintDirectory to control
 111  * printing of data structures that are potentially
 112  * very large.   Bit-or these flags to enable printing
 113  * multiple items.
 114  */
 115 #define TIFFPRINT_NONE         0x0    /* no extra info */
 116 #define TIFFPRINT_STRIPS       0x1    /* strips/tiles info */
 117 #define TIFFPRINT_CURVES       0x2    /* color/gray response curves */
 118 #define TIFFPRINT_COLORMAP     0x4    /* colormap */
 119 #define TIFFPRINT_JPEGQTABLES  0x100  /* JPEG Q matrices */
 120 #define TIFFPRINT_JPEGACTABLES 0x200  /* JPEG AC tables */
 121 #define TIFFPRINT_JPEGDCTABLES 0x200  /* JPEG DC tables */
 122
 123 /*
 124  * Colour conversion stuff
 125  */
 126
 127 /* reference white */
 128 #define D65_X0 (95.0470F)
 129 #define D65_Y0 (100.0F)
 130 #define D65_Z0 (108.8827F)
 131
 132 #define D50_X0 (96.4250F)
 133 #define D50_Y0 (100.0F)
 134 #define D50_Z0 (82.4680F)
 135
 136 /* Structure for holding information about a display device. */
 137
 138 typedef unsigned char TIFFRGBValue;               /* 8-bit samples */
 139
 140 typedef struct {
 141         float d_mat[3][3];                        /* XYZ -> luminance matrix */
 142         float d_YCR;                              /* Light o/p for reference white */
 143         float d_YCG;
 144         float d_YCB;
 145         uint32 d_Vrwr;                            /* Pixel values for ref. white */
 146         uint32 d_Vrwg;
 147         uint32 d_Vrwb;
 148         float d_Y0R;                              /* Residual light for black pixel */
 149         float d_Y0G;
 150         float d_Y0B;
 151         float d_gammaR;                           /* Gamma values for the three guns */
 152         float d_gammaG;
 153         float d_gammaB;
 154 } TIFFDisplay;
 155
 156 typedef struct {                                  /* YCbCr->RGB support */
 157         TIFFRGBValue* clamptab;                   /* range clamping table */
 158         int* Cr_r_tab;
 159         int* Cb_b_tab;
 160         int32* Cr_g_tab;
 161         int32* Cb_g_tab;
 162         int32* Y_tab;
 163 } TIFFYCbCrToRGB;
 164
 165 typedef struct {                                  /* CIE Lab 1976->RGB support */
 166         int range;                                /* Size of conversion table */
 167 #define CIELABTORGB_TABLE_RANGE 1500
 168         float rstep, gstep, bstep;
 169         float X0, Y0, Z0;                         /* Reference white point */
 170         TIFFDisplay display;
 171         float Yr2r[CIELABTORGB_TABLE_RANGE + 1];  /* Conversion of Yr to r */
 172         float Yg2g[CIELABTORGB_TABLE_RANGE + 1];  /* Conversion of Yg to g */
 173         float Yb2b[CIELABTORGB_TABLE_RANGE + 1];  /* Conversion of Yb to b */
 174 } TIFFCIELabToRGB;
 175
 176 /*
 177  * RGBA-style image support.
 178  */
 179 typedef struct _TIFFRGBAImage TIFFRGBAImage;
 180 /*
 181  * The image reading and conversion routines invoke
 182  * ``put routines'' to copy/image/whatever tiles of
 183  * raw image data.  A default set of routines are
 184  * provided to convert/copy raw image data to 8-bit
 185  * packed ABGR format rasters.  Applications can supply
 186  * alternate routines that unpack the data into a
 187  * different format or, for example, unpack the data
 188  * and draw the unpacked raster on the display.
 189  */
 190 typedef void (*tileContigRoutine)
 191     (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32,
 192         unsigned char*);
 193 typedef void (*tileSeparateRoutine)
 194     (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32,
 195         unsigned char*, unsigned char*, unsigned char*, unsigned char*);
 196 /*
 197  * RGBA-reader state.
 198  */
 199 struct _TIFFRGBAImage {
 200         TIFF* tif;                              /* image handle */
 201         int stoponerr;                          /* stop on read error */
 202         int isContig;                           /* data is packed/separate */
 203         int alpha;                              /* type of alpha data present */
 204         uint32 width;                           /* image width */
 205         uint32 height;                          /* image height */
 206         uint16 bitspersample;                   /* image bits/sample */
 207         uint16 samplesperpixel;                 /* image samples/pixel */
 208         uint16 orientation;                     /* image orientation */
 209         uint16 req_orientation;                 /* requested orientation */
 210         uint16 photometric;                     /* image photometric interp */
 211         uint16* redcmap;                        /* colormap pallete */
 212         uint16* greencmap;
 213         uint16* bluecmap;
 214         /* get image data routine */
 215         int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32);
 216         /* put decoded strip/tile */
 217         union {
 218             void (*any)(TIFFRGBAImage*);
 219             tileContigRoutine contig;
 220             tileSeparateRoutine separate;
 221         } put;
 222         TIFFRGBValue* Map;                      /* sample mapping array */
 223         uint32** BWmap;                         /* black&white map */
 224         uint32** PALmap;                        /* palette image map */
 225         TIFFYCbCrToRGB* ycbcr;                  /* YCbCr conversion state */
 226         TIFFCIELabToRGB* cielab;                /* CIE L*a*b conversion state */
 227
 228         uint8* UaToAa;                          /* Unassociated alpha to associated alpha convertion LUT */
 229         uint8* Bitdepth16To8;                   /* LUT for conversion from 16bit to 8bit values */
 230
 231         int row_offset;
 232         int col_offset;
 233 };
 234
 235 /*
 236  * Macros for extracting components from the
 237  * packed ABGR form returned by TIFFReadRGBAImage.
 238  */
 239 #define TIFFGetR(abgr) ((abgr) & 0xff)
 240 #define TIFFGetG(abgr) (((abgr) >> 8) & 0xff)
 241 #define TIFFGetB(abgr) (((abgr) >> 16) & 0xff)
 242 #define TIFFGetA(abgr) (((abgr) >> 24) & 0xff)
 243
 244 /*
 245  * A CODEC is a software package that implements decoding,
 246  * encoding, or decoding+encoding of a compression algorithm.
 247  * The library provides a collection of builtin codecs.
 248  * More codecs may be registered through calls to the library
 249  * and/or the builtin implementations may be overridden.
 250  */
 251 typedef int (*TIFFInitMethod)(TIFF*, int);
 252 typedef struct {
 253         char* name;
 254         uint16 scheme;
 255         TIFFInitMethod init;
 256 } TIFFCodec;
 257
 258 #include <stdio.h>
 259 #include <stdarg.h>
 260
 261 /* share internal LogLuv conversion routines? */
 262 #ifndef LOGLUV_PUBLIC
 263 #define LOGLUV_PUBLIC 1
 264 #endif
 265
 266 #if !defined(__GNUC__) && !defined(__attribute__)
 267 #  define __attribute__(x) /*nothing*/
 268 #endif
 269
 270 #if defined(c_plusplus) || defined(__cplusplus)
 271 extern "C" {
 272 #endif
 273 typedef void (*TIFFErrorHandler)(const char*, const char*, va_list);
 274 typedef void (*TIFFErrorHandlerExt)(thandle_t, const char*, const char*, va_list);
 275 typedef tmsize_t (*TIFFReadWriteProc)(thandle_t, void*, tmsize_t);
 276 typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int);
 277 typedef int (*TIFFCloseProc)(thandle_t);
 278 typedef toff_t (*TIFFSizeProc)(thandle_t);
 279 typedef int (*TIFFMapFileProc)(thandle_t, void** base, toff_t* size);
 280 typedef void (*TIFFUnmapFileProc)(thandle_t, void* base, toff_t size);
 281 typedef void (*TIFFExtendProc)(TIFF*);
 282
 283 extern const char* TIFFGetVersion(void);
 284
 285 extern const TIFFCodec* TIFFFindCODEC(uint16);
 286 extern TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod);
 287 extern void TIFFUnRegisterCODEC(TIFFCodec*);
 288 extern int TIFFIsCODECConfigured(uint16);
 289 extern TIFFCodec* TIFFGetConfiguredCODECs(void);
 290
 291 /*
 292  * Auxiliary functions.
 293  */
 294
 295 extern void* _TIFFmalloc(tmsize_t s);
 296 extern void* _TIFFrealloc(void* p, tmsize_t s);
 297 extern void _TIFFmemset(void* p, int v, tmsize_t c);
 298 extern void _TIFFmemcpy(void* d, const void* s, tmsize_t c);
 299 extern int _TIFFmemcmp(const void* p1, const void* p2, tmsize_t c);
 300 extern void _TIFFfree(void* p);
 301
 302 /*
 303 ** Stuff, related to tag handling and creating custom tags.
 304 */
 305 extern int TIFFGetTagListCount( TIFF * );
 306 extern uint32 TIFFGetTagListEntry( TIFF *, int tag_index );
 307
 308 #define TIFF_ANY       TIFF_NOTYPE     /* for field descriptor searching */
 309 #define TIFF_VARIABLE  -1              /* marker for variable length tags */
 310 #define TIFF_SPP       -2              /* marker for SamplesPerPixel tags */
 311 #define TIFF_VARIABLE2 -3              /* marker for uint32 var-length tags */
 312
 313 #define FIELD_CUSTOM    65
 314
 315 typedef struct _TIFFField TIFFField;
 316 typedef struct _TIFFFieldArray TIFFFieldArray;
 317
 318 extern const TIFFField* TIFFFindField(TIFF *, uint32, TIFFDataType);
 319 extern const TIFFField* TIFFFieldWithTag(TIFF*, uint32);
 320 extern const TIFFField* TIFFFieldWithName(TIFF*, const char *);
 321
 322 extern uint32 TIFFFieldTag(const TIFFField*);
 323 extern const char* TIFFFieldName(const TIFFField*);
 324 extern TIFFDataType TIFFFieldDataType(const TIFFField*);
 325 extern int TIFFFieldPassCount(const TIFFField*);
 326 extern int TIFFFieldReadCount(const TIFFField*);
 327 extern int TIFFFieldWriteCount(const TIFFField*);
 328
 329 typedef int (*TIFFVSetMethod)(TIFF*, uint32, va_list);
 330 typedef int (*TIFFVGetMethod)(TIFF*, uint32, va_list);
 331 typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long);
 332
 333 typedef struct {
 334     TIFFVSetMethod vsetfield; /* tag set routine */
 335     TIFFVGetMethod vgetfield; /* tag get routine */
 336     TIFFPrintMethod printdir; /* directory print routine */
 337 } TIFFTagMethods;
 338
 339 extern  TIFFTagMethods *TIFFAccessTagMethods(TIFF *);
 340 extern  void *TIFFGetClientInfo(TIFF *, const char *);
 341 extern  void TIFFSetClientInfo(TIFF *, void *, const char *);
 342
 343 extern void TIFFCleanup(TIFF* tif);
 344 extern void TIFFClose(TIFF* tif);
 345 extern int TIFFFlush(TIFF* tif);
 346 extern int TIFFFlushData(TIFF* tif);
 347 extern int TIFFGetField(TIFF* tif, uint32 tag, ...);
 348 extern int TIFFVGetField(TIFF* tif, uint32 tag, va_list ap);
 349 extern int TIFFGetFieldDefaulted(TIFF* tif, uint32 tag, ...);
 350 extern int TIFFVGetFieldDefaulted(TIFF* tif, uint32 tag, va_list ap);
 351 extern int TIFFReadDirectory(TIFF* tif);
 352 extern int TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, const TIFFFieldArray* infoarray);
 353 extern int TIFFReadEXIFDirectory(TIFF* tif, toff_t diroff);
 354 extern uint64 TIFFScanlineSize64(TIFF* tif);
 355 extern tmsize_t TIFFScanlineSize(TIFF* tif);
 356 extern uint64 TIFFRasterScanlineSize64(TIFF* tif);
 357 extern tmsize_t TIFFRasterScanlineSize(TIFF* tif);
 358 extern uint64 TIFFStripSize64(TIFF* tif);
 359 extern tmsize_t TIFFStripSize(TIFF* tif);
 360 extern uint64 TIFFRawStripSize64(TIFF* tif, uint32 strip);
 361 extern tmsize_t TIFFRawStripSize(TIFF* tif, uint32 strip);
 362 extern uint64 TIFFVStripSize64(TIFF* tif, uint32 nrows);
 363 extern tmsize_t TIFFVStripSize(TIFF* tif, uint32 nrows);
 364 extern uint64 TIFFTileRowSize64(TIFF* tif);
 365 extern tmsize_t TIFFTileRowSize(TIFF* tif);
 366 extern uint64 TIFFTileSize64(TIFF* tif);
 367 extern tmsize_t TIFFTileSize(TIFF* tif);
 368 extern uint64 TIFFVTileSize64(TIFF* tif, uint32 nrows);
 369 extern tmsize_t TIFFVTileSize(TIFF* tif, uint32 nrows);
 370 extern uint32 TIFFDefaultStripSize(TIFF* tif, uint32 request);
 371 extern void TIFFDefaultTileSize(TIFF*, uint32*, uint32*);
 372 extern int TIFFFileno(TIFF*);
 373 extern int TIFFSetFileno(TIFF*, int);
 374 extern thandle_t TIFFClientdata(TIFF*);
 375 extern thandle_t TIFFSetClientdata(TIFF*, thandle_t);
 376 extern int TIFFGetMode(TIFF*);
 377 extern int TIFFSetMode(TIFF*, int);
 378 extern int TIFFIsTiled(TIFF*);
 379 extern int TIFFIsByteSwapped(TIFF*);
 380 extern int TIFFIsUpSampled(TIFF*);
 381 extern int TIFFIsMSB2LSB(TIFF*);
 382 extern int TIFFIsBigEndian(TIFF*);
 383 extern TIFFReadWriteProc TIFFGetReadProc(TIFF*);
 384 extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*);
 385 extern TIFFSeekProc TIFFGetSeekProc(TIFF*);
 386 extern TIFFCloseProc TIFFGetCloseProc(TIFF*);
 387 extern TIFFSizeProc TIFFGetSizeProc(TIFF*);
 388 extern TIFFMapFileProc TIFFGetMapFileProc(TIFF*);
 389 extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*);
 390 extern uint32 TIFFCurrentRow(TIFF*);
 391 extern uint16 TIFFCurrentDirectory(TIFF*);
 392 extern uint16 TIFFNumberOfDirectories(TIFF*);
 393 extern uint64 TIFFCurrentDirOffset(TIFF*);
 394 extern uint32 TIFFCurrentStrip(TIFF*);
 395 extern uint32 TIFFCurrentTile(TIFF* tif);
 396 extern int TIFFReadBufferSetup(TIFF* tif, void* bp, tmsize_t size);
 397 extern int TIFFWriteBufferSetup(TIFF* tif, void* bp, tmsize_t size);
 398 extern int TIFFSetupStrips(TIFF *);
 399 extern int TIFFWriteCheck(TIFF*, int, const char *);
 400 extern void TIFFFreeDirectory(TIFF*);
 401 extern int TIFFCreateDirectory(TIFF*);
 402 extern int TIFFCreateCustomDirectory(TIFF*,const TIFFFieldArray*);
 403 extern int TIFFCreateEXIFDirectory(TIFF*);
 404 extern int TIFFLastDirectory(TIFF*);
 405 extern int TIFFSetDirectory(TIFF*, uint16);
 406 extern int TIFFSetSubDirectory(TIFF*, uint64);
 407 extern int TIFFUnlinkDirectory(TIFF*, uint16);
 408 extern int TIFFSetField(TIFF*, uint32, ...);
 409 extern int TIFFVSetField(TIFF*, uint32, va_list);
 410 extern int TIFFUnsetField(TIFF*, uint32);
 411 extern int TIFFWriteDirectory(TIFF *);
 412 extern int TIFFWriteCustomDirectory(TIFF *, uint64 *);
 413 extern int TIFFCheckpointDirectory(TIFF *);
 414 extern int TIFFRewriteDirectory(TIFF *);
 415
 416 #if defined(c_plusplus) || defined(__cplusplus)
 417 extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0);
 418 extern int TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample = 0);
 419 extern int TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample = 0);
 420 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0);
 421 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*,
 422     int = ORIENTATION_BOTLEFT, int = 0);
 423 #else
 424 extern void TIFFPrintDirectory(TIFF*, FILE*, long);
 425 extern int TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample);
 426 extern int TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample);
 427 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int);
 428 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int);
 429 #endif
 430
 431 extern int TIFFReadRGBAStrip(TIFF*, uint32, uint32 * );
 432 extern int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * );
 433 extern int TIFFRGBAImageOK(TIFF*, char [1024]);
 434 extern int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]);
 435 extern int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32);
 436 extern void TIFFRGBAImageEnd(TIFFRGBAImage*);
 437 extern TIFF* TIFFOpen(const char*, const char*);
 438 # ifdef __WIN32__
 439 extern TIFF* TIFFOpenW(const wchar_t*, const char*);
 440 # endif /* __WIN32__ */
 441 extern TIFF* TIFFFdOpen(int, const char*, const char*);
 442 extern TIFF* TIFFClientOpen(const char*, const char*,
 443             thandle_t,
 444             TIFFReadWriteProc, TIFFReadWriteProc,
 445             TIFFSeekProc, TIFFCloseProc,
 446             TIFFSizeProc,
 447             TIFFMapFileProc, TIFFUnmapFileProc);
 448 extern const char* TIFFFileName(TIFF*);
 449 extern const char* TIFFSetFileName(TIFF*, const char *);
 450 extern void TIFFError(const char*, const char*, ...) __attribute__((__format__ (__printf__,2,3)));
 451 extern void TIFFErrorExt(thandle_t, const char*, const char*, ...) __attribute__((__format__ (__printf__,3,4)));
 452 extern void TIFFWarning(const char*, const char*, ...) __attribute__((__format__ (__printf__,2,3)));
 453 extern void TIFFWarningExt(thandle_t, const char*, const char*, ...) __attribute__((__format__ (__printf__,3,4)));
 454 extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler);
 455 extern TIFFErrorHandlerExt TIFFSetErrorHandlerExt(TIFFErrorHandlerExt);
 456 extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler);
 457 extern TIFFErrorHandlerExt TIFFSetWarningHandlerExt(TIFFErrorHandlerExt);
 458 extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc);
 459 extern uint32 TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s);
 460 extern int TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s);
 461 extern uint32 TIFFNumberOfTiles(TIFF*);
 462 extern tmsize_t TIFFReadTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s);
 463 extern tmsize_t TIFFWriteTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s);
 464 extern uint32 TIFFComputeStrip(TIFF*, uint32, uint16);
 465 extern uint32 TIFFNumberOfStrips(TIFF*);
 466 extern tmsize_t TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size);
 467 extern tmsize_t TIFFReadRawStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size);
 468 extern tmsize_t TIFFReadEncodedTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size);
 469 extern tmsize_t TIFFReadRawTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size);
 470 extern tmsize_t TIFFWriteEncodedStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc);
 471 extern tmsize_t TIFFWriteRawStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc);
 472 extern tmsize_t TIFFWriteEncodedTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc);
 473 extern tmsize_t TIFFWriteRawTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc);
 474 extern int TIFFDataWidth(TIFFDataType);    /* table of tag datatype widths */
 475 extern void TIFFSetWriteOffset(TIFF* tif, toff_t off);
 476 extern void TIFFSwabShort(uint16*);
 477 extern void TIFFSwabLong(uint32*);
 478 extern void TIFFSwabLong8(uint64*);
 479 extern void TIFFSwabFloat(float*);
 480 extern void TIFFSwabDouble(double*);
 481 extern void TIFFSwabArrayOfShort(uint16* wp, tmsize_t n);
 482 extern void TIFFSwabArrayOfTriples(uint8* tp, tmsize_t n);
 483 extern void TIFFSwabArrayOfLong(uint32* lp, tmsize_t n);
 484 extern void TIFFSwabArrayOfLong8(uint64* lp, tmsize_t n);
 485 extern void TIFFSwabArrayOfFloat(float* fp, tmsize_t n);
 486 extern void TIFFSwabArrayOfDouble(double* dp, tmsize_t n);
 487 extern void TIFFReverseBits(uint8* cp, tmsize_t n);
 488 extern const unsigned char* TIFFGetBitRevTable(int);
 489
 490 #ifdef LOGLUV_PUBLIC
 491 #define U_NEU           0.210526316
 492 #define V_NEU           0.473684211
 493 #define UVSCALE         410.
 494 extern double LogL16toY(int);
 495 extern double LogL10toY(int);
 496 extern void XYZtoRGB24(float*, uint8*);
 497 extern int uv_decode(double*, double*, int);
 498 extern void LogLuv24toXYZ(uint32, float*);
 499 extern void LogLuv32toXYZ(uint32, float*);
 500 #if defined(c_plusplus) || defined(__cplusplus)
 501 extern int LogL16fromY(double, int = SGILOGENCODE_NODITHER);
 502 extern int LogL10fromY(double, int = SGILOGENCODE_NODITHER);
 503 extern int uv_encode(double, double, int = SGILOGENCODE_NODITHER);
 504 extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER);
 505 extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER);
 506 #else
 507 extern int LogL16fromY(double, int);
 508 extern int LogL10fromY(double, int);
 509 extern int uv_encode(double, double, int);
 510 extern uint32 LogLuv24fromXYZ(float*, int);
 511 extern uint32 LogLuv32fromXYZ(float*, int);
 512 #endif
 513 #endif /* LOGLUV_PUBLIC */
 514
 515 extern int TIFFCIELabToRGBInit(TIFFCIELabToRGB*, const TIFFDisplay *, float*);
 516 extern void TIFFCIELabToXYZ(TIFFCIELabToRGB *, uint32, int32, int32,
 517     float *, float *, float *);
 518 extern void TIFFXYZToRGB(TIFFCIELabToRGB *, float, float, float,
 519     uint32 *, uint32 *, uint32 *);
 520
 521 extern int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*);
 522 extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *, uint32, int32, int32,
 523     uint32 *, uint32 *, uint32 *);
 524
 525 /****************************************************************************
 526  *               O B S O L E T E D    I N T E R F A C E S
 527  *
 528  * Don't use this stuff in your applications, it may be removed in the future
 529  * libtiff versions.
 530  ****************************************************************************/
 531 typedef struct {
 532         ttag_t  field_tag;              /* field's tag */
 533         short   field_readcount;        /* read count/TIFF_VARIABLE/TIFF_SPP */
 534         short   field_writecount;       /* write count/TIFF_VARIABLE */
 535         TIFFDataType field_type;        /* type of associated data */
 536         unsigned short field_bit;       /* bit in fieldsset bit vector */
 537         unsigned char field_oktochange; /* if true, can change while writing */
 538         unsigned char field_passcount;  /* if true, pass dir count on set */
 539         char    *field_name;            /* ASCII name */
 540 } TIFFFieldInfo;
 541
 542 extern int TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], uint32);
 543
 544 #if defined(c_plusplus) || defined(__cplusplus)
 545 }
 546 #endif
 547
 548 #endif /* _TIFFIO_ */
 549
 550 /* vim: set ts=8 sts=8 sw=8 noet: */
 551 /*
 552  * Local Variables:
 553  * mode: c
 554  * c-basic-offset: 8
 555  * fill-column: 78
 556  * End:
 557  */