1 /* $Id: tiffio.h,v 1.56.2.4 2010-06-08 18:50:43 bfriesen 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 tstrile_t; /* strip or tile number */ 65 typedef tstrile_t tstrip_t; /* strip number */ 66 typedef tstrile_t ttile_t; /* tile number */ 67 typedef size_t tsize_t; /* i/o size in bytes */ 68 typedef void* tdata_t; /* image data ref */ 69 typedef uint32 toff_t; /* file offset */ 70 71 #if !defined(__WIN32__) && (defined(_WIN32) || defined(WIN32)) 72 #define __WIN32__ 73 #endif 74 75 /* 76 * On windows you should define USE_WIN32_FILEIO if you are using tif_win32.c 77 * or AVOID_WIN32_FILEIO if you are using something else (like tif_unix.c). 78 * 79 * By default tif_unix.c is assumed. 80 */ 81 82 #if defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows) 83 # if !defined(__CYGWIN) && !defined(AVOID_WIN32_FILEIO) && !defined(USE_WIN32_FILEIO) 84 # define AVOID_WIN32_FILEIO 85 # endif 86 #endif 87 88 #if defined(USE_WIN32_FILEIO) 89 # define VC_EXTRALEAN 90 # include <windows.h> 91 # ifdef __WIN32__ 92 DECLARE_HANDLE(thandle_t); /* Win32 file handle */ 93 # else 94 typedef HFILE thandle_t; /* client data handle */ 95 # endif /* __WIN32__ */ 96 #else 97 typedef void* thandle_t; /* client data handle */ 98 #endif /* USE_WIN32_FILEIO */ 99 100 /* 101 * Flags to pass to TIFFPrintDirectory to control 102 * printing of data structures that are potentially 103 * very large. Bit-or these flags to enable printing 104 * multiple items. 105 */ 106 #define TIFFPRINT_NONE 0x0 /* no extra info */ 107 #define TIFFPRINT_STRIPS 0x1 /* strips/tiles info */ 108 #define TIFFPRINT_CURVES 0x2 /* color/gray response curves */ 109 #define TIFFPRINT_COLORMAP 0x4 /* colormap */ 110 #define TIFFPRINT_JPEGQTABLES 0x100 /* JPEG Q matrices */ 111 #define TIFFPRINT_JPEGACTABLES 0x200 /* JPEG AC tables */ 112 #define TIFFPRINT_JPEGDCTABLES 0x200 /* JPEG DC tables */ 113 114 /* 115 * Colour conversion stuff 116 */ 117 118 /* reference white */ 119 #define D65_X0 (95.0470F) 120 #define D65_Y0 (100.0F) 121 #define D65_Z0 (108.8827F) 122 123 #define D50_X0 (96.4250F) 124 #define D50_Y0 (100.0F) 125 #define D50_Z0 (82.4680F) 126 127 /* Structure for holding information about a display device. */ 128 129 typedef unsigned char TIFFRGBValue; /* 8-bit samples */ 130 131 typedef struct { 132 float d_mat[3][3]; /* XYZ -> luminance matrix */ 133 float d_YCR; /* Light o/p for reference white */ 134 float d_YCG; 135 float d_YCB; 136 uint32 d_Vrwr; /* Pixel values for ref. white */ 137 uint32 d_Vrwg; 138 uint32 d_Vrwb; 139 float d_Y0R; /* Residual light for black pixel */ 140 float d_Y0G; 141 float d_Y0B; 142 float d_gammaR; /* Gamma values for the three guns */ 143 float d_gammaG; 144 float d_gammaB; 145 } TIFFDisplay; 146 147 typedef struct { /* YCbCr->RGB support */ 148 TIFFRGBValue* clamptab; /* range clamping table */ 149 int* Cr_r_tab; 150 int* Cb_b_tab; 151 int32* Cr_g_tab; 152 int32* Cb_g_tab; 153 int32* Y_tab; 154 } TIFFYCbCrToRGB; 155 156 typedef struct { /* CIE Lab 1976->RGB support */ 157 int range; /* Size of conversion table */ 158 #define CIELABTORGB_TABLE_RANGE 1500 159 float rstep, gstep, bstep; 160 float X0, Y0, Z0; /* Reference white point */ 161 TIFFDisplay display; 162 float Yr2r[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yr to r */ 163 float Yg2g[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yg to g */ 164 float Yb2b[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yb to b */ 165 } TIFFCIELabToRGB; 166 167 /* 168 * RGBA-style image support. 169 */ 170 typedef struct _TIFFRGBAImage TIFFRGBAImage; 171 /* 172 * The image reading and conversion routines invoke 173 * ``put routines'' to copy/image/whatever tiles of 174 * raw image data. A default set of routines are 175 * provided to convert/copy raw image data to 8-bit 176 * packed ABGR format rasters. Applications can supply 177 * alternate routines that unpack the data into a 178 * different format or, for example, unpack the data 179 * and draw the unpacked raster on the display. 180 */ 181 typedef void (*tileContigRoutine) 182 (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, 183 unsigned char*); 184 typedef void (*tileSeparateRoutine) 185 (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, 186 unsigned char*, unsigned char*, unsigned char*, unsigned char*); 187 /* 188 * RGBA-reader state. 189 */ 190 struct _TIFFRGBAImage { 191 TIFF* tif; /* image handle */ 192 int stoponerr; /* stop on read error */ 193 int isContig; /* data is packed/separate */ 194 int alpha; /* type of alpha data present */ 195 uint32 width; /* image width */ 196 uint32 height; /* image height */ 197 uint16 bitspersample; /* image bits/sample */ 198 uint16 samplesperpixel; /* image samples/pixel */ 199 uint16 orientation; /* image orientation */ 200 uint16 req_orientation; /* requested orientation */ 201 uint16 photometric; /* image photometric interp */ 202 uint16* redcmap; /* colormap pallete */ 203 uint16* greencmap; 204 uint16* bluecmap; 205 /* get image data routine */ 206 int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32); 207 /* put decoded strip/tile */ 208 union { 209 void (*any)(TIFFRGBAImage*); 210 tileContigRoutine contig; 211 tileSeparateRoutine separate; 212 } put; 213 TIFFRGBValue* Map; /* sample mapping array */ 214 uint32** BWmap; /* black&white map */ 215 uint32** PALmap; /* palette image map */ 216 TIFFYCbCrToRGB* ycbcr; /* YCbCr conversion state */ 217 TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */ 218 219 int row_offset; 220 int col_offset; 221 }; 222 223 /* 224 * Macros for extracting components from the 225 * packed ABGR form returned by TIFFReadRGBAImage. 226 */ 227 #define TIFFGetR(abgr) ((abgr) & 0xff) 228 #define TIFFGetG(abgr) (((abgr) >> 8) & 0xff) 229 #define TIFFGetB(abgr) (((abgr) >> 16) & 0xff) 230 #define TIFFGetA(abgr) (((abgr) >> 24) & 0xff) 231 232 /* 233 * A CODEC is a software package that implements decoding, 234 * encoding, or decoding+encoding of a compression algorithm. 235 * The library provides a collection of builtin codecs. 236 * More codecs may be registered through calls to the library 237 * and/or the builtin implementations may be overridden. 238 */ 239 typedef int (*TIFFInitMethod)(TIFF*, int); 240 typedef struct { 241 char* name; 242 uint16 scheme; 243 TIFFInitMethod init; 244 } TIFFCodec; 245 246 #include <stdio.h> 247 #include <stdarg.h> 248 249 /* share internal LogLuv conversion routines? */ 250 #ifndef LOGLUV_PUBLIC 251 #define LOGLUV_PUBLIC 1 252 #endif 253 254 #if !defined(__GNUC__) && !defined(__attribute__) 255 # define __attribute__(x) /*nothing*/ 256 #endif 257 258 #if defined(c_plusplus) || defined(__cplusplus) 259 extern "C" { 260 #endif 261 typedef void (*TIFFErrorHandler)(const char*, const char*, va_list); 262 typedef void (*TIFFErrorHandlerExt)(thandle_t, const char*, const char*, va_list); 263 typedef tsize_t (*TIFFReadWriteProc)(thandle_t, tdata_t, tsize_t); 264 typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int); 265 typedef int (*TIFFCloseProc)(thandle_t); 266 typedef toff_t (*TIFFSizeProc)(thandle_t); 267 typedef int (*TIFFMapFileProc)(thandle_t, tdata_t*, toff_t*); 268 typedef void (*TIFFUnmapFileProc)(thandle_t, tdata_t, toff_t); 269 typedef void (*TIFFExtendProc)(TIFF*); 270 271 extern const char* TIFFGetVersion(void); 272 273 extern const TIFFCodec* TIFFFindCODEC(uint16); 274 extern TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod); 275 extern void TIFFUnRegisterCODEC(TIFFCodec*); 276 extern int TIFFIsCODECConfigured(uint16); 277 extern TIFFCodec* TIFFGetConfiguredCODECs(void); 278 279 /* 280 * Auxiliary functions. 281 */ 282 283 extern tdata_t _TIFFmalloc(tsize_t); 284 extern tdata_t _TIFFrealloc(tdata_t, tsize_t); 285 extern void _TIFFmemset(tdata_t, int, tsize_t); 286 extern void _TIFFmemcpy(tdata_t, const tdata_t, tsize_t); 287 extern int _TIFFmemcmp(const tdata_t, const tdata_t, tsize_t); 288 extern void _TIFFfree(tdata_t); 289 290 /* 291 ** Stuff, related to tag handling and creating custom tags. 292 */ 293 extern int TIFFGetTagListCount( TIFF * ); 294 extern ttag_t TIFFGetTagListEntry( TIFF *, int tag_index ); 295 296 #define TIFF_ANY TIFF_NOTYPE /* for field descriptor searching */ 297 #define TIFF_VARIABLE -1 /* marker for variable length tags */ 298 #define TIFF_SPP -2 /* marker for SamplesPerPixel tags */ 299 #define TIFF_VARIABLE2 -3 /* marker for uint32 var-length tags */ 300 301 #define FIELD_CUSTOM 65 302 303 typedef struct { 304 ttag_t field_tag; /* field's tag */ 305 short field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */ 306 short field_writecount; /* write count/TIFF_VARIABLE */ 307 TIFFDataType field_type; /* type of associated data */ 308 unsigned short field_bit; /* bit in fieldsset bit vector */ 309 unsigned char field_oktochange; /* if true, can change while writing */ 310 unsigned char field_passcount; /* if true, pass dir count on set */ 311 char *field_name; /* ASCII name */ 312 } TIFFFieldInfo; 313 314 typedef struct _TIFFTagValue { 315 const TIFFFieldInfo *info; 316 int count; 317 void *value; 318 } TIFFTagValue; 319 320 extern void TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int); 321 extern const TIFFFieldInfo* TIFFFindFieldInfo(TIFF*, ttag_t, TIFFDataType); 322 extern const TIFFFieldInfo* TIFFFindFieldInfoByName(TIFF* , const char *, 323 TIFFDataType); 324 extern const TIFFFieldInfo* TIFFFieldWithTag(TIFF*, ttag_t); 325 extern const TIFFFieldInfo* TIFFFieldWithName(TIFF*, const char *); 326 327 typedef int (*TIFFVSetMethod)(TIFF*, ttag_t, va_list); 328 typedef int (*TIFFVGetMethod)(TIFF*, ttag_t, va_list); 329 typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long); 330 331 typedef struct { 332 TIFFVSetMethod vsetfield; /* tag set routine */ 333 TIFFVGetMethod vgetfield; /* tag get routine */ 334 TIFFPrintMethod printdir; /* directory print routine */ 335 } TIFFTagMethods; 336 337 extern TIFFTagMethods *TIFFAccessTagMethods( TIFF * ); 338 extern void *TIFFGetClientInfo( TIFF *, const char * ); 339 extern void TIFFSetClientInfo( TIFF *, void *, const char * ); 340 341 extern void TIFFCleanup(TIFF*); 342 extern void TIFFClose(TIFF*); 343 extern int TIFFFlush(TIFF*); 344 extern int TIFFFlushData(TIFF*); 345 extern int TIFFGetField(TIFF*, ttag_t, ...); 346 extern int TIFFVGetField(TIFF*, ttag_t, va_list); 347 extern int TIFFGetFieldDefaulted(TIFF*, ttag_t, ...); 348 extern int TIFFVGetFieldDefaulted(TIFF*, ttag_t, va_list); 349 extern int TIFFReadDirectory(TIFF*); 350 extern int TIFFReadCustomDirectory(TIFF*, toff_t, const TIFFFieldInfo[], 351 size_t); 352 extern int TIFFReadEXIFDirectory(TIFF*, toff_t); 353 extern tsize_t TIFFScanlineSize(TIFF*); 354 extern tsize_t TIFFOldScanlineSize(TIFF*); 355 extern tsize_t TIFFNewScanlineSize(TIFF*); 356 extern tsize_t TIFFRasterScanlineSize(TIFF*); 357 extern tsize_t TIFFStripSize(TIFF*); 358 extern tsize_t TIFFRawStripSize(TIFF*, tstrip_t); 359 extern tsize_t TIFFVStripSize(TIFF*, uint32); 360 extern tsize_t TIFFTileRowSize(TIFF*); 361 extern tsize_t TIFFTileSize(TIFF*); 362 extern tsize_t TIFFVTileSize(TIFF*, uint32); 363 extern uint32 TIFFDefaultStripSize(TIFF*, uint32); 364 extern void TIFFDefaultTileSize(TIFF*, uint32*, uint32*); 365 extern int TIFFFileno(TIFF*); 366 extern int TIFFSetFileno(TIFF*, int); 367 extern thandle_t TIFFClientdata(TIFF*); 368 extern thandle_t TIFFSetClientdata(TIFF*, thandle_t); 369 extern int TIFFGetMode(TIFF*); 370 extern int TIFFSetMode(TIFF*, int); 371 extern int TIFFIsTiled(TIFF*); 372 extern int TIFFIsByteSwapped(TIFF*); 373 extern int TIFFIsUpSampled(TIFF*); 374 extern int TIFFIsMSB2LSB(TIFF*); 375 extern int TIFFIsBigEndian(TIFF*); 376 extern TIFFReadWriteProc TIFFGetReadProc(TIFF*); 377 extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*); 378 extern TIFFSeekProc TIFFGetSeekProc(TIFF*); 379 extern TIFFCloseProc TIFFGetCloseProc(TIFF*); 380 extern TIFFSizeProc TIFFGetSizeProc(TIFF*); 381 extern TIFFMapFileProc TIFFGetMapFileProc(TIFF*); 382 extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*); 383 extern uint32 TIFFCurrentRow(TIFF*); 384 extern tdir_t TIFFCurrentDirectory(TIFF*); 385 extern tdir_t TIFFNumberOfDirectories(TIFF*); 386 extern uint32 TIFFCurrentDirOffset(TIFF*); 387 extern tstrip_t TIFFCurrentStrip(TIFF*); 388 extern ttile_t TIFFCurrentTile(TIFF*); 389 extern int TIFFReadBufferSetup(TIFF*, tdata_t, tsize_t); 390 extern int TIFFWriteBufferSetup(TIFF*, tdata_t, tsize_t); 391 extern int TIFFSetupStrips(TIFF *); 392 extern int TIFFWriteCheck(TIFF*, int, const char *); 393 extern void TIFFFreeDirectory(TIFF*); 394 extern int TIFFCreateDirectory(TIFF*); 395 extern int TIFFLastDirectory(TIFF*); 396 extern int TIFFSetDirectory(TIFF*, tdir_t); 397 extern int TIFFSetSubDirectory(TIFF*, uint32); 398 extern int TIFFUnlinkDirectory(TIFF*, tdir_t); 399 extern int TIFFSetField(TIFF*, ttag_t, ...); 400 extern int TIFFVSetField(TIFF*, ttag_t, va_list); 401 extern int TIFFWriteDirectory(TIFF *); 402 extern int TIFFCheckpointDirectory(TIFF *); 403 extern int TIFFRewriteDirectory(TIFF *); 404 extern int TIFFReassignTagToIgnore(enum TIFFIgnoreSense, int); 405 406 #if defined(c_plusplus) || defined(__cplusplus) 407 extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0); 408 extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t = 0); 409 extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t = 0); 410 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0); 411 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, 412 int = ORIENTATION_BOTLEFT, int = 0); 413 #else 414 extern void TIFFPrintDirectory(TIFF*, FILE*, long); 415 extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t); 416 extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t); 417 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int); 418 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int); 419 #endif 420 421 extern int TIFFReadRGBAStrip(TIFF*, tstrip_t, uint32 * ); 422 extern int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * ); 423 extern int TIFFRGBAImageOK(TIFF*, char [1024]); 424 extern int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]); 425 extern int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32); 426 extern void TIFFRGBAImageEnd(TIFFRGBAImage*); 427 extern TIFF* TIFFOpen(const char*, const char*); 428 # ifdef __WIN32__ 429 extern TIFF* TIFFOpenW(const wchar_t*, const char*); 430 # endif /* __WIN32__ */ 431 extern TIFF* TIFFFdOpen(int, const char*, const char*); 432 extern TIFF* TIFFClientOpen(const char*, const char*, 433 thandle_t, 434 TIFFReadWriteProc, TIFFReadWriteProc, 435 TIFFSeekProc, TIFFCloseProc, 436 TIFFSizeProc, 437 TIFFMapFileProc, TIFFUnmapFileProc); 438 extern const char* TIFFFileName(TIFF*); 439 extern const char* TIFFSetFileName(TIFF*, const char *); 440 extern void TIFFError(const char*, const char*, ...) __attribute__((format (printf,2,3))); 441 extern void TIFFErrorExt(thandle_t, const char*, const char*, ...) __attribute__((format (printf,3,4))); 442 extern void TIFFWarning(const char*, const char*, ...) __attribute__((format (printf,2,3))); 443 extern void TIFFWarningExt(thandle_t, const char*, const char*, ...) __attribute__((format (printf,3,4))); 444 extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler); 445 extern TIFFErrorHandlerExt TIFFSetErrorHandlerExt(TIFFErrorHandlerExt); 446 extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler); 447 extern TIFFErrorHandlerExt TIFFSetWarningHandlerExt(TIFFErrorHandlerExt); 448 extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc); 449 extern ttile_t TIFFComputeTile(TIFF*, uint32, uint32, uint32, tsample_t); 450 extern int TIFFCheckTile(TIFF*, uint32, uint32, uint32, tsample_t); 451 extern ttile_t TIFFNumberOfTiles(TIFF*); 452 extern tsize_t TIFFReadTile(TIFF*, 453 tdata_t, uint32, uint32, uint32, tsample_t); 454 extern tsize_t TIFFWriteTile(TIFF*, 455 tdata_t, uint32, uint32, uint32, tsample_t); 456 extern tstrip_t TIFFComputeStrip(TIFF*, uint32, tsample_t); 457 extern tstrip_t TIFFNumberOfStrips(TIFF*); 458 extern tsize_t TIFFReadEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 459 extern tsize_t TIFFReadRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 460 extern tsize_t TIFFReadEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t); 461 extern tsize_t TIFFReadRawTile(TIFF*, ttile_t, tdata_t, tsize_t); 462 extern tsize_t TIFFWriteEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 463 extern tsize_t TIFFWriteRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 464 extern tsize_t TIFFWriteEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t); 465 extern tsize_t TIFFWriteRawTile(TIFF*, ttile_t, tdata_t, tsize_t); 466 extern int TIFFDataWidth(TIFFDataType); /* table of tag datatype widths */ 467 extern void TIFFSetWriteOffset(TIFF*, toff_t); 468 extern void TIFFSwabShort(uint16*); 469 extern void TIFFSwabLong(uint32*); 470 extern void TIFFSwabDouble(double*); 471 extern void TIFFSwabArrayOfShort(uint16*, unsigned long); 472 extern void TIFFSwabArrayOfTriples(uint8*, unsigned long); 473 extern void TIFFSwabArrayOfLong(uint32*, unsigned long); 474 extern void TIFFSwabArrayOfDouble(double*, unsigned long); 475 extern void TIFFReverseBits(unsigned char *, unsigned long); 476 extern const unsigned char* TIFFGetBitRevTable(int); 477 478 #ifdef LOGLUV_PUBLIC 479 #define U_NEU 0.210526316 480 #define V_NEU 0.473684211 481 #define UVSCALE 410. 482 extern double LogL16toY(int); 483 extern double LogL10toY(int); 484 extern void XYZtoRGB24(float*, uint8*); 485 extern int uv_decode(double*, double*, int); 486 extern void LogLuv24toXYZ(uint32, float*); 487 extern void LogLuv32toXYZ(uint32, float*); 488 #if defined(c_plusplus) || defined(__cplusplus) 489 extern int LogL16fromY(double, int = SGILOGENCODE_NODITHER); 490 extern int LogL10fromY(double, int = SGILOGENCODE_NODITHER); 491 extern int uv_encode(double, double, int = SGILOGENCODE_NODITHER); 492 extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER); 493 extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER); 494 #else 495 extern int LogL16fromY(double, int); 496 extern int LogL10fromY(double, int); 497 extern int uv_encode(double, double, int); 498 extern uint32 LogLuv24fromXYZ(float*, int); 499 extern uint32 LogLuv32fromXYZ(float*, int); 500 #endif 501 #endif /* LOGLUV_PUBLIC */ 502 503 extern int TIFFCIELabToRGBInit(TIFFCIELabToRGB*, TIFFDisplay *, float*); 504 extern void TIFFCIELabToXYZ(TIFFCIELabToRGB *, uint32, int32, int32, 505 float *, float *, float *); 506 extern void TIFFXYZToRGB(TIFFCIELabToRGB *, float, float, float, 507 uint32 *, uint32 *, uint32 *); 508 509 extern int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*); 510 extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *, uint32, int32, int32, 511 uint32 *, uint32 *, uint32 *); 512 513 #if defined(c_plusplus) || defined(__cplusplus) 514 } 515 #endif 516 517 #endif /* _TIFFIO_ */ 518 519 /* vim: set ts=8 sts=8 sw=8 noet: */ 520 /* 521 * Local Variables: 522 * mode: c 523 * c-basic-offset: 8 524 * fill-column: 78 525 * End: 526 */ 527