1 /* $Id: tiffio.h,v 1.50 2006/03/21 16:37:51 dron Exp $ */ 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 being the most important, and to ensure 59 * that it is unsigned, rather than signed. 60 */ 61 typedef uint32 ttag_t; /* directory tag */ 62 typedef uint16 tdir_t; /* directory index */ 63 typedef uint16 tsample_t; /* sample number */ 64 typedef uint32 tstrip_t; /* strip number */ 65 typedef uint32 ttile_t; /* tile number */ 66 typedef int32 tsize_t; /* i/o size in bytes */ 67 typedef void* tdata_t; /* image data ref */ 68 typedef uint32 toff_t; /* file offset */ 69 70 #if !defined(__WIN32__) && (defined(_WIN32) || defined(WIN32)) 71 #define __WIN32__ 72 #endif 73 74 /* 75 * On windows you should define USE_WIN32_FILEIO if you are using tif_win32.c 76 * or AVOID_WIN32_FILEIO if you are using something else (like tif_unix.c). 77 * 78 * By default tif_unix.c is assumed. 79 */ 80 81 #if defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows) 82 # if !defined(__CYGWIN) && !defined(AVOID_WIN32_FILEIO) && !defined(USE_WIN32_FILEIO) 83 # define AVOID_WIN32_FILEIO 84 # endif 85 #endif 86 87 #if defined(USE_WIN32_FILEIO) 88 # define VC_EXTRALEAN 89 # include <windows.h> 90 # ifdef __WIN32__ 91 DECLARE_HANDLE(thandle_t); /* Win32 file handle */ 92 # else 93 typedef HFILE thandle_t; /* client data handle */ 94 # endif /* __WIN32__ */ 95 #else 96 typedef void* thandle_t; /* client data handle */ 97 #endif /* USE_WIN32_FILEIO */ 98 99 #ifndef NULL 100 # define NULL (void *)0 101 #endif 102 103 /* 104 * Flags to pass to TIFFPrintDirectory to control 105 * printing of data structures that are potentially 106 * very large. Bit-or these flags to enable printing 107 * multiple items. 108 */ 109 #define TIFFPRINT_NONE 0x0 /* no extra info */ 110 #define TIFFPRINT_STRIPS 0x1 /* strips/tiles info */ 111 #define TIFFPRINT_CURVES 0x2 /* color/gray response curves */ 112 #define TIFFPRINT_COLORMAP 0x4 /* colormap */ 113 #define TIFFPRINT_JPEGQTABLES 0x100 /* JPEG Q matrices */ 114 #define TIFFPRINT_JPEGACTABLES 0x200 /* JPEG AC tables */ 115 #define TIFFPRINT_JPEGDCTABLES 0x200 /* JPEG DC tables */ 116 117 /* 118 * Colour conversion stuff 119 */ 120 121 /* reference white */ 122 #define D65_X0 (95.0470F) 123 #define D65_Y0 (100.0F) 124 #define D65_Z0 (108.8827F) 125 126 #define D50_X0 (96.4250F) 127 #define D50_Y0 (100.0F) 128 #define D50_Z0 (82.4680F) 129 130 /* Structure for holding information about a display device. */ 131 132 typedef unsigned char TIFFRGBValue; /* 8-bit samples */ 133 134 typedef struct { 135 float d_mat[3][3]; /* XYZ -> luminance matrix */ 136 float d_YCR; /* Light o/p for reference white */ 137 float d_YCG; 138 float d_YCB; 139 uint32 d_Vrwr; /* Pixel values for ref. white */ 140 uint32 d_Vrwg; 141 uint32 d_Vrwb; 142 float d_Y0R; /* Residual light for black pixel */ 143 float d_Y0G; 144 float d_Y0B; 145 float d_gammaR; /* Gamma values for the three guns */ 146 float d_gammaG; 147 float d_gammaB; 148 } TIFFDisplay; 149 150 typedef struct { /* YCbCr->RGB support */ 151 TIFFRGBValue* clamptab; /* range clamping table */ 152 int* Cr_r_tab; 153 int* Cb_b_tab; 154 int32* Cr_g_tab; 155 int32* Cb_g_tab; 156 int32* Y_tab; 157 } TIFFYCbCrToRGB; 158 159 typedef struct { /* CIE Lab 1976->RGB support */ 160 int range; /* Size of conversion table */ 161 #define CIELABTORGB_TABLE_RANGE 1500 162 float rstep, gstep, bstep; 163 float X0, Y0, Z0; /* Reference white point */ 164 TIFFDisplay display; 165 float Yr2r[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yr to r */ 166 float Yg2g[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yg to g */ 167 float Yb2b[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yb to b */ 168 } TIFFCIELabToRGB; 169 170 /* 171 * RGBA-style image support. 172 */ 173 typedef struct _TIFFRGBAImage TIFFRGBAImage; 174 /* 175 * The image reading and conversion routines invoke 176 * ``put routines'' to copy/image/whatever tiles of 177 * raw image data. A default set of routines are 178 * provided to convert/copy raw image data to 8-bit 179 * packed ABGR format rasters. Applications can supply 180 * alternate routines that unpack the data into a 181 * different format or, for example, unpack the data 182 * and draw the unpacked raster on the display. 183 */ 184 typedef void (*tileContigRoutine) 185 (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, 186 unsigned char*); 187 typedef void (*tileSeparateRoutine) 188 (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, 189 unsigned char*, unsigned char*, unsigned char*, unsigned char*); 190 /* 191 * RGBA-reader state. 192 */ 193 struct _TIFFRGBAImage { 194 TIFF* tif; /* image handle */ 195 int stoponerr; /* stop on read error */ 196 int isContig; /* data is packed/separate */ 197 int alpha; /* type of alpha data present */ 198 uint32 width; /* image width */ 199 uint32 height; /* image height */ 200 uint16 bitspersample; /* image bits/sample */ 201 uint16 samplesperpixel; /* image samples/pixel */ 202 uint16 orientation; /* image orientation */ 203 uint16 req_orientation; /* requested orientation */ 204 uint16 photometric; /* image photometric interp */ 205 uint16* redcmap; /* colormap pallete */ 206 uint16* greencmap; 207 uint16* bluecmap; 208 /* get image data routine */ 209 int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32); 210 union { 211 void (*any)(TIFFRGBAImage*); 212 tileContigRoutine contig; 213 tileSeparateRoutine separate; 214 } put; /* put decoded strip/tile */ 215 TIFFRGBValue* Map; /* sample mapping array */ 216 uint32** BWmap; /* black&white map */ 217 uint32** PALmap; /* palette image map */ 218 TIFFYCbCrToRGB* ycbcr; /* YCbCr conversion state */ 219 TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */ 220 221 int row_offset; 222 int col_offset; 223 }; 224 225 /* 226 * Macros for extracting components from the 227 * packed ABGR form returned by TIFFReadRGBAImage. 228 */ 229 #define TIFFGetR(abgr) ((abgr) & 0xff) 230 #define TIFFGetG(abgr) (((abgr) >> 8) & 0xff) 231 #define TIFFGetB(abgr) (((abgr) >> 16) & 0xff) 232 #define TIFFGetA(abgr) (((abgr) >> 24) & 0xff) 233 234 /* 235 * A CODEC is a software package that implements decoding, 236 * encoding, or decoding+encoding of a compression algorithm. 237 * The library provides a collection of builtin codecs. 238 * More codecs may be registered through calls to the library 239 * and/or the builtin implementations may be overridden. 240 */ 241 typedef int (*TIFFInitMethod)(TIFF*, int); 242 typedef struct { 243 char* name; 244 uint16 scheme; 245 TIFFInitMethod init; 246 } TIFFCodec; 247 248 #include <stdio.h> 249 #include <stdarg.h> 250 251 /* share internal LogLuv conversion routines? */ 252 #ifndef LOGLUV_PUBLIC 253 #define LOGLUV_PUBLIC 1 254 #endif 255 256 #if defined(c_plusplus) || defined(__cplusplus) 257 extern "C" { 258 #endif 259 typedef void (*TIFFErrorHandler)(const char*, const char*, va_list); 260 typedef void (*TIFFErrorHandlerExt)(thandle_t, const char*, const char*, va_list); 261 typedef tsize_t (*TIFFReadWriteProc)(thandle_t, tdata_t, tsize_t); 262 typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int); 263 typedef int (*TIFFCloseProc)(thandle_t); 264 typedef toff_t (*TIFFSizeProc)(thandle_t); 265 typedef int (*TIFFMapFileProc)(thandle_t, tdata_t*, toff_t*); 266 typedef void (*TIFFUnmapFileProc)(thandle_t, tdata_t, toff_t); 267 typedef void (*TIFFExtendProc)(TIFF*); 268 269 extern const char* TIFFGetVersion(void); 270 271 extern const TIFFCodec* TIFFFindCODEC(uint16); 272 extern TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod); 273 extern void TIFFUnRegisterCODEC(TIFFCodec*); 274 extern int TIFFIsCODECConfigured(uint16); 275 extern TIFFCodec* TIFFGetConfiguredCODECs(void); 276 277 /* 278 * Auxiliary functions. 279 */ 280 281 extern tdata_t _TIFFmalloc(tsize_t); 282 extern tdata_t _TIFFrealloc(tdata_t, tsize_t); 283 extern void _TIFFmemset(tdata_t, int, tsize_t); 284 extern void _TIFFmemcpy(tdata_t, const tdata_t, tsize_t); 285 extern int _TIFFmemcmp(const tdata_t, const tdata_t, tsize_t); 286 extern void _TIFFfree(tdata_t); 287 288 /* 289 ** Stuff, related to tag handling and creating custom tags. 290 */ 291 extern int TIFFGetTagListCount( TIFF * ); 292 extern ttag_t TIFFGetTagListEntry( TIFF *, int tag_index ); 293 294 #define TIFF_ANY TIFF_NOTYPE /* for field descriptor searching */ 295 #define TIFF_VARIABLE -1 /* marker for variable length tags */ 296 #define TIFF_SPP -2 /* marker for SamplesPerPixel tags */ 297 #define TIFF_VARIABLE2 -3 /* marker for uint32 var-length tags */ 298 299 #define FIELD_CUSTOM 65 300 301 typedef struct { 302 ttag_t field_tag; /* field's tag */ 303 short field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */ 304 short field_writecount; /* write count/TIFF_VARIABLE */ 305 TIFFDataType field_type; /* type of associated data */ 306 unsigned short field_bit; /* bit in fieldsset bit vector */ 307 unsigned char field_oktochange; /* if true, can change while writing */ 308 unsigned char field_passcount; /* if true, pass dir count on set */ 309 char *field_name; /* ASCII name */ 310 } TIFFFieldInfo; 311 312 typedef struct _TIFFTagValue { 313 const TIFFFieldInfo *info; 314 int count; 315 void *value; 316 } TIFFTagValue; 317 318 extern void TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int); 319 extern const TIFFFieldInfo* TIFFFindFieldInfo(TIFF*, ttag_t, TIFFDataType); 320 extern const TIFFFieldInfo* TIFFFindFieldInfoByName(TIFF* , const char *, 321 TIFFDataType); 322 extern const TIFFFieldInfo* TIFFFieldWithTag(TIFF*, ttag_t); 323 extern const TIFFFieldInfo* TIFFFieldWithName(TIFF*, const char *); 324 325 typedef int (*TIFFVSetMethod)(TIFF*, ttag_t, va_list); 326 typedef int (*TIFFVGetMethod)(TIFF*, ttag_t, va_list); 327 typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long); 328 329 typedef struct { 330 TIFFVSetMethod vsetfield; /* tag set routine */ 331 TIFFVGetMethod vgetfield; /* tag get routine */ 332 TIFFPrintMethod printdir; /* directory print routine */ 333 } TIFFTagMethods; 334 335 extern TIFFTagMethods *TIFFAccessTagMethods( TIFF * ); 336 extern void *TIFFGetClientInfo( TIFF *, const char * ); 337 extern void TIFFSetClientInfo( TIFF *, void *, const char * ); 338 339 extern void TIFFCleanup(TIFF*); 340 extern void TIFFClose(TIFF*); 341 extern int TIFFFlush(TIFF*); 342 extern int TIFFFlushData(TIFF*); 343 extern int TIFFGetField(TIFF*, ttag_t, ...); 344 extern int TIFFVGetField(TIFF*, ttag_t, va_list); 345 extern int TIFFGetFieldDefaulted(TIFF*, ttag_t, ...); 346 extern int TIFFVGetFieldDefaulted(TIFF*, ttag_t, va_list); 347 extern int TIFFReadDirectory(TIFF*); 348 extern int TIFFReadCustomDirectory(TIFF*, toff_t, const TIFFFieldInfo[], 349 size_t); 350 extern int TIFFReadEXIFDirectory(TIFF*, toff_t); 351 extern tsize_t TIFFScanlineSize(TIFF*); 352 extern tsize_t TIFFRasterScanlineSize(TIFF*); 353 extern tsize_t TIFFStripSize(TIFF*); 354 extern tsize_t TIFFRawStripSize(TIFF*, tstrip_t); 355 extern tsize_t TIFFVStripSize(TIFF*, uint32); 356 extern tsize_t TIFFTileRowSize(TIFF*); 357 extern tsize_t TIFFTileSize(TIFF*); 358 extern tsize_t TIFFVTileSize(TIFF*, uint32); 359 extern uint32 TIFFDefaultStripSize(TIFF*, uint32); 360 extern void TIFFDefaultTileSize(TIFF*, uint32*, uint32*); 361 extern int TIFFFileno(TIFF*); 362 extern int TIFFSetFileno(TIFF*, int); 363 extern thandle_t TIFFClientdata(TIFF*); 364 extern thandle_t TIFFSetClientdata(TIFF*, thandle_t); 365 extern int TIFFGetMode(TIFF*); 366 extern int TIFFSetMode(TIFF*, int); 367 extern int TIFFIsTiled(TIFF*); 368 extern int TIFFIsByteSwapped(TIFF*); 369 extern int TIFFIsUpSampled(TIFF*); 370 extern int TIFFIsMSB2LSB(TIFF*); 371 extern int TIFFIsBigEndian(TIFF*); 372 extern TIFFReadWriteProc TIFFGetReadProc(TIFF*); 373 extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*); 374 extern TIFFSeekProc TIFFGetSeekProc(TIFF*); 375 extern TIFFCloseProc TIFFGetCloseProc(TIFF*); 376 extern TIFFSizeProc TIFFGetSizeProc(TIFF*); 377 extern TIFFMapFileProc TIFFGetMapFileProc(TIFF*); 378 extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*); 379 extern uint32 TIFFCurrentRow(TIFF*); 380 extern tdir_t TIFFCurrentDirectory(TIFF*); 381 extern tdir_t TIFFNumberOfDirectories(TIFF*); 382 extern uint32 TIFFCurrentDirOffset(TIFF*); 383 extern tstrip_t TIFFCurrentStrip(TIFF*); 384 extern ttile_t TIFFCurrentTile(TIFF*); 385 extern int TIFFReadBufferSetup(TIFF*, tdata_t, tsize_t); 386 extern int TIFFWriteBufferSetup(TIFF*, tdata_t, tsize_t); 387 extern int TIFFSetupStrips(TIFF *); 388 extern int TIFFWriteCheck(TIFF*, int, const char *); 389 extern void TIFFFreeDirectory(TIFF*); 390 extern int TIFFCreateDirectory(TIFF*); 391 extern int TIFFLastDirectory(TIFF*); 392 extern int TIFFSetDirectory(TIFF*, tdir_t); 393 extern int TIFFSetSubDirectory(TIFF*, uint32); 394 extern int TIFFUnlinkDirectory(TIFF*, tdir_t); 395 extern int TIFFSetField(TIFF*, ttag_t, ...); 396 extern int TIFFVSetField(TIFF*, ttag_t, va_list); 397 extern int TIFFWriteDirectory(TIFF *); 398 extern int TIFFCheckpointDirectory(TIFF *); 399 extern int TIFFRewriteDirectory(TIFF *); 400 extern int TIFFReassignTagToIgnore(enum TIFFIgnoreSense, int); 401 402 #if defined(c_plusplus) || defined(__cplusplus) 403 extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0); 404 extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t = 0); 405 extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t = 0); 406 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0); 407 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, 408 int = ORIENTATION_BOTLEFT, int = 0); 409 #else 410 extern void TIFFPrintDirectory(TIFF*, FILE*, long); 411 extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t); 412 extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t); 413 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int); 414 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int); 415 #endif 416 417 extern int TIFFReadRGBAStrip(TIFF*, tstrip_t, uint32 * ); 418 extern int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * ); 419 extern int TIFFRGBAImageOK(TIFF*, char [1024]); 420 extern int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]); 421 extern int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32); 422 extern void TIFFRGBAImageEnd(TIFFRGBAImage*); 423 extern TIFF* TIFFOpen(const char*, const char*); 424 # ifdef __WIN32__ 425 extern TIFF* TIFFOpenW(const wchar_t*, const char*); 426 # endif /* __WIN32__ */ 427 extern TIFF* TIFFFdOpen(int, const char*, const char*); 428 extern TIFF* TIFFClientOpen(const char*, const char*, 429 thandle_t, 430 TIFFReadWriteProc, TIFFReadWriteProc, 431 TIFFSeekProc, TIFFCloseProc, 432 TIFFSizeProc, 433 TIFFMapFileProc, TIFFUnmapFileProc); 434 extern const char* TIFFFileName(TIFF*); 435 extern const char* TIFFSetFileName(TIFF*, const char *); 436 extern void TIFFError(const char*, const char*, ...); 437 extern void TIFFErrorExt(thandle_t, const char*, const char*, ...); 438 extern void TIFFWarning(const char*, const char*, ...); 439 extern void TIFFWarningExt(thandle_t, const char*, const char*, ...); 440 extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler); 441 extern TIFFErrorHandlerExt TIFFSetErrorHandlerExt(TIFFErrorHandlerExt); 442 extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler); 443 extern TIFFErrorHandlerExt TIFFSetWarningHandlerExt(TIFFErrorHandlerExt); 444 extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc); 445 extern ttile_t TIFFComputeTile(TIFF*, uint32, uint32, uint32, tsample_t); 446 extern int TIFFCheckTile(TIFF*, uint32, uint32, uint32, tsample_t); 447 extern ttile_t TIFFNumberOfTiles(TIFF*); 448 extern tsize_t TIFFReadTile(TIFF*, 449 tdata_t, uint32, uint32, uint32, tsample_t); 450 extern tsize_t TIFFWriteTile(TIFF*, 451 tdata_t, uint32, uint32, uint32, tsample_t); 452 extern tstrip_t TIFFComputeStrip(TIFF*, uint32, tsample_t); 453 extern tstrip_t TIFFNumberOfStrips(TIFF*); 454 extern tsize_t TIFFReadEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 455 extern tsize_t TIFFReadRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 456 extern tsize_t TIFFReadEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t); 457 extern tsize_t TIFFReadRawTile(TIFF*, ttile_t, tdata_t, tsize_t); 458 extern tsize_t TIFFWriteEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 459 extern tsize_t TIFFWriteRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 460 extern tsize_t TIFFWriteEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t); 461 extern tsize_t TIFFWriteRawTile(TIFF*, ttile_t, tdata_t, tsize_t); 462 extern int TIFFDataWidth(TIFFDataType); /* table of tag datatype widths */ 463 extern void TIFFSetWriteOffset(TIFF*, toff_t); 464 extern void TIFFSwabShort(uint16*); 465 extern void TIFFSwabLong(uint32*); 466 extern void TIFFSwabDouble(double*); 467 extern void TIFFSwabArrayOfShort(uint16*, unsigned long); 468 extern void TIFFSwabArrayOfTriples(uint8*, unsigned long); 469 extern void TIFFSwabArrayOfLong(uint32*, unsigned long); 470 extern void TIFFSwabArrayOfDouble(double*, unsigned long); 471 extern void TIFFReverseBits(unsigned char *, unsigned long); 472 extern const unsigned char* TIFFGetBitRevTable(int); 473 474 #ifdef LOGLUV_PUBLIC 475 #define U_NEU 0.210526316 476 #define V_NEU 0.473684211 477 #define UVSCALE 410. 478 extern double LogL16toY(int); 479 extern double LogL10toY(int); 480 extern void XYZtoRGB24(float*, uint8*); 481 extern int uv_decode(double*, double*, int); 482 extern void LogLuv24toXYZ(uint32, float*); 483 extern void LogLuv32toXYZ(uint32, float*); 484 #if defined(c_plusplus) || defined(__cplusplus) 485 extern int LogL16fromY(double, int = SGILOGENCODE_NODITHER); 486 extern int LogL10fromY(double, int = SGILOGENCODE_NODITHER); 487 extern int uv_encode(double, double, int = SGILOGENCODE_NODITHER); 488 extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER); 489 extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER); 490 #else 491 extern int LogL16fromY(double, int); 492 extern int LogL10fromY(double, int); 493 extern int uv_encode(double, double, int); 494 extern uint32 LogLuv24fromXYZ(float*, int); 495 extern uint32 LogLuv32fromXYZ(float*, int); 496 #endif 497 #endif /* LOGLUV_PUBLIC */ 498 499 extern int TIFFCIELabToRGBInit(TIFFCIELabToRGB*, TIFFDisplay *, float*); 500 extern void TIFFCIELabToXYZ(TIFFCIELabToRGB *, uint32, int32, int32, 501 float *, float *, float *); 502 extern void TIFFXYZToRGB(TIFFCIELabToRGB *, float, float, float, 503 uint32 *, uint32 *, uint32 *); 504 505 extern int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*); 506 extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *, uint32, int32, int32, 507 uint32 *, uint32 *, uint32 *); 508 509 #if defined(c_plusplus) || defined(__cplusplus) 510 } 511 #endif 512 513 #endif /* _TIFFIO_ */ 514 515 /* vim: set ts=8 sts=8 sw=8 noet: */ 516