1 /* PDFlib GmbH cvsid: $Id: tiffio.h,v 1.15 2006/07/26 22:00:41 rjs 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 * PDFlib Gmbh, special memory management 31 * therefore all calls to _TIFFmalloc ... are changed to get a TIFF pointer 32 * which contains a PDF pointer 33 */ 34 #define TIFF_PDFLIB_MEM_SUPPORTED 35 36 /* 37 * TIFF I/O Library Definitions. 38 */ 39 #include "tiff.h" 40 #include "tiffvers.h" 41 #include "port.h" 42 43 /* 44 * TIFF is defined as an incomplete type to hide the 45 * library's internal data structures from clients. 46 */ 47 typedef struct tiff TIFF; 48 49 /* 50 * The following typedefs define the intrinsic size of 51 * data types used in the *exported* interfaces. These 52 * definitions depend on the proper definition of types 53 * in tiff.h. Note also that the varargs interface used 54 * to pass tag types and values uses the types defined in 55 * tiff.h directly. 56 * 57 * NB: ttag_t is unsigned int and not unsigned short because 58 * ANSI C requires that the type before the ellipsis be a 59 * promoted type (i.e. one of int, unsigned int, pointer, 60 * or double) and because we defined pseudo-tags that are 61 * outside the range of legal Aldus-assigned tags. 62 * NB: tsize_t is int32 and not uint32 because some functions 63 * return -1. 64 * NB: toff_t is not off_t for many reasons; TIFFs max out at 65 * 32-bit file offsets being the most important, and to ensure 66 * that it is unsigned, rather than signed. 67 */ 68 typedef uint32 ttag_t; /* directory tag */ 69 typedef uint16 tdir_t; /* directory index */ 70 typedef uint16 tsample_t; /* sample number */ 71 typedef uint32 tstrip_t; /* strip number */ 72 typedef uint32 ttile_t; /* tile number */ 73 typedef int32 tsize_t; /* i/o size in bytes */ 74 typedef void* tdata_t; /* image data ref */ 75 typedef uint32 toff_t; /* file offset */ 76 77 #ifndef NULL 78 # define NULL (void *)0 79 #endif 80 81 /* 82 * Flags to pass to TIFFPrintDirectory to control 83 * printing of data structures that are potentially 84 * very large. Bit-or these flags to enable printing 85 * multiple items. 86 */ 87 #define TIFFPRINT_NONE 0x0 /* no extra info */ 88 #define TIFFPRINT_STRIPS 0x1 /* strips/tiles info */ 89 #define TIFFPRINT_CURVES 0x2 /* color/gray response curves */ 90 #define TIFFPRINT_COLORMAP 0x4 /* colormap */ 91 #define TIFFPRINT_JPEGQTABLES 0x100 /* JPEG Q matrices */ 92 #define TIFFPRINT_JPEGACTABLES 0x200 /* JPEG AC tables */ 93 #define TIFFPRINT_JPEGDCTABLES 0x200 /* JPEG DC tables */ 94 95 /* 96 * Colour conversion stuff 97 */ 98 99 /* reference white */ 100 #define D65_X0 (95.0470F) 101 #define D65_Y0 (100.0F) 102 #define D65_Z0 (108.8827F) 103 104 #define D50_X0 (96.4250F) 105 #define D50_Y0 (100.0F) 106 #define D50_Z0 (82.4680F) 107 108 /* Structure for holding information about a display device. */ 109 110 typedef unsigned char TIFFRGBValue; /* 8-bit samples */ 111 112 typedef struct { 113 float d_mat[3][3]; /* XYZ -> luminance matrix */ 114 float d_YCR; /* Light o/p for reference white */ 115 float d_YCG; 116 float d_YCB; 117 uint32 d_Vrwr; /* Pixel values for ref. white */ 118 uint32 d_Vrwg; 119 uint32 d_Vrwb; 120 float d_Y0R; /* Residual light for black pixel */ 121 float d_Y0G; 122 float d_Y0B; 123 float d_gammaR; /* Gamma values for the three guns */ 124 float d_gammaG; 125 float d_gammaB; 126 } TIFFDisplay; 127 128 typedef struct { /* YCbCr->RGB support */ 129 TIFFRGBValue* clamptab; /* range clamping table */ 130 int* Cr_r_tab; 131 int* Cb_b_tab; 132 int32* Cr_g_tab; 133 int32* Cb_g_tab; 134 int32* Y_tab; 135 } TIFFYCbCrToRGB; 136 137 typedef struct { /* CIE Lab 1976->RGB support */ 138 int range; /* Size of conversion table */ 139 #define CIELABTORGB_TABLE_RANGE 1500 140 float rstep, gstep, bstep; 141 float X0, Y0, Z0; /* Reference white point */ 142 TIFFDisplay display; 143 float Yr2r[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yr to r */ 144 float Yg2g[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yg to g */ 145 float Yb2b[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yb to b */ 146 } TIFFCIELabToRGB; 147 148 /* 149 * RGBA-style image support. 150 */ 151 typedef struct _TIFFRGBAImage TIFFRGBAImage; 152 /* 153 * The image reading and conversion routines invoke 154 * ``put routines'' to copy/image/whatever tiles of 155 * raw image data. A default set of routines are 156 * provided to convert/copy raw image data to 8-bit 157 * packed ABGR format rasters. Applications can supply 158 * alternate routines that unpack the data into a 159 * different format or, for example, unpack the data 160 * and draw the unpacked raster on the display. 161 */ 162 typedef void (*tileContigRoutine) 163 (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, 164 unsigned char*); 165 typedef void (*tileSeparateRoutine) 166 (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, 167 unsigned char*, unsigned char*, unsigned char*, unsigned char*); 168 /* 169 * RGBA-reader state. 170 */ 171 struct _TIFFRGBAImage { 172 TIFF* tif; /* image handle */ 173 int stoponerr; /* stop on read error */ 174 int isContig; /* data is packed/separate */ 175 int alpha; /* type of alpha data present */ 176 uint32 width; /* image width */ 177 uint32 height; /* image height */ 178 uint16 bitspersample; /* image bits/sample */ 179 uint16 samplesperpixel; /* image samples/pixel */ 180 uint16 orientation; /* image orientation */ 181 uint16 req_orientation; /* requested orientation */ 182 uint16 photometric; /* image photometric interp */ 183 uint16* redcmap; /* colormap pallete */ 184 uint16* greencmap; 185 uint16* bluecmap; 186 /* get image data routine */ 187 int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32); 188 union { 189 void (*any)(TIFFRGBAImage*); 190 tileContigRoutine contig; 191 tileSeparateRoutine separate; 192 } put; /* put decoded strip/tile */ 193 TIFFRGBValue* Map; /* sample mapping array */ 194 uint32** BWmap; /* black&white map */ 195 uint32** PALmap; /* palette image map */ 196 TIFFYCbCrToRGB* ycbcr; /* YCbCr conversion state */ 197 TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */ 198 199 int row_offset; 200 int col_offset; 201 }; 202 203 /* 204 * Macros for extracting components from the 205 * packed ABGR form returned by TIFFReadRGBAImage. 206 */ 207 #define TIFFGetR(abgr) ((abgr) & 0xff) 208 #define TIFFGetG(abgr) (((abgr) >> 8) & 0xff) 209 #define TIFFGetB(abgr) (((abgr) >> 16) & 0xff) 210 #define TIFFGetA(abgr) (((abgr) >> 24) & 0xff) 211 212 /* 213 * A CODEC is a software package that implements decoding, 214 * encoding, or decoding+encoding of a compression algorithm. 215 * The library provides a collection of builtin codecs. 216 * More codecs may be registered through calls to the library 217 * and/or the builtin implementations may be overridden. 218 */ 219 typedef int (*TIFFInitMethod)(TIFF*, int); 220 typedef struct { 221 char* name; 222 uint16 scheme; 223 TIFFInitMethod init; 224 } TIFFCodec; 225 226 #include <stdio.h> 227 #include <stdarg.h> 228 229 /* share internal LogLuv conversion routines? */ 230 #ifndef LOGLUV_PUBLIC 231 #define LOGLUV_PUBLIC 1 232 #endif 233 234 /* PDFlib GmbH: special malloc handling */ 235 #define _TIFFmalloc(a) TIFFmalloc(tif, a) 236 #define _TIFFrealloc(a, b) TIFFrealloc(tif, a, b) 237 #define _TIFFfree(a) TIFFfree(tif, a) 238 239 #if defined(c_plusplus) || defined(__cplusplus) 240 extern "C" { 241 #endif 242 typedef tdata_t (*TIFFmallocHandler)(TIFF*, tsize_t); 243 typedef tdata_t (*TIFFreallocHandler)(TIFF*, tdata_t, tsize_t); 244 typedef void (*TIFFfreeHandler)(TIFF*, tdata_t); 245 typedef void (*TIFFErrorHandler)(TIFF*, const char*, const char*, va_list); 246 typedef tsize_t (*TIFFReadWriteProc)(void*, tdata_t, tsize_t); 247 typedef toff_t (*TIFFSeekProc)(void*, toff_t, int); 248 typedef int (*TIFFCloseProc)(void*); 249 typedef toff_t (*TIFFSizeProc)(void*); 250 typedef int (*TIFFMapFileProc)(void*, tdata_t*, toff_t*); 251 typedef void (*TIFFUnmapFileProc)(void*, tdata_t, toff_t); 252 typedef void (*TIFFExtendProc)(TIFF*); 253 254 extern const char* TIFFGetVersion(void); 255 256 extern const TIFFCodec* TIFFFindCODEC(uint16); 257 extern TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod); 258 extern void TIFFUnRegisterCODEC(TIFFCodec*); 259 extern int TIFFIsCODECConfigured(uint16); 260 extern TIFFCodec* TIFFGetConfiguredCODECs(TIFF*); 261 262 extern tdata_t TIFFmalloc(TIFF*, tsize_t); 263 extern tdata_t TIFFrealloc(TIFF*, tdata_t, tsize_t); 264 extern void _TIFFmemset(tdata_t, int, tsize_t); 265 extern void _TIFFmemcpy(tdata_t, const tdata_t, tsize_t); 266 extern int _TIFFmemcmp(const tdata_t, const tdata_t, tsize_t); 267 extern void TIFFfree(TIFF*, tdata_t); 268 269 extern void TIFFCleanup(TIFF*); 270 extern void TIFFClose(TIFF*); 271 extern int TIFFFlush(TIFF*); 272 extern int TIFFFlushData(TIFF*); 273 extern int TIFFGetField(TIFF*, ttag_t, ...); 274 extern int TIFFVGetField(TIFF*, ttag_t, va_list); 275 extern int TIFFGetFieldDefaulted(TIFF*, ttag_t, ...); 276 extern int TIFFVGetFieldDefaulted(TIFF*, ttag_t, va_list); 277 extern int TIFFReadDirectory(TIFF*); 278 extern tsize_t TIFFScanlineSize(TIFF*); 279 extern tsize_t TIFFRasterScanlineSize(TIFF*); 280 extern tsize_t TIFFStripSize(TIFF*); 281 extern tsize_t TIFFRawStripSize(TIFF*, tstrip_t); 282 extern tsize_t TIFFVStripSize(TIFF*, uint32); 283 extern tsize_t TIFFTileRowSize(TIFF*); 284 extern tsize_t TIFFTileSize(TIFF*); 285 extern tsize_t TIFFVTileSize(TIFF*, uint32); 286 extern uint32 TIFFDefaultStripSize(TIFF*, uint32); 287 extern void TIFFDefaultTileSize(TIFF*, uint32*, uint32*); 288 extern FILE* TIFFFileno(TIFF*); 289 extern FILE* TIFFSetFileno(TIFF*, FILE*); 290 extern FILE * TIFFClientdata(TIFF*); 291 extern FILE * TIFFSetClientdata(TIFF*, FILE *); 292 extern int TIFFGetMode(TIFF*); 293 extern int TIFFSetMode(TIFF*, int); 294 extern int TIFFIsTiled(TIFF*); 295 extern int TIFFIsByteSwapped(TIFF*); 296 extern int TIFFIsUpSampled(TIFF*); 297 extern int TIFFIsMSB2LSB(TIFF*); 298 extern int TIFFIsBigEndian(TIFF*); 299 extern TIFFReadWriteProc TIFFGetReadProc(TIFF*); 300 extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*); 301 extern TIFFSeekProc TIFFGetSeekProc(TIFF*); 302 extern TIFFCloseProc TIFFGetCloseProc(TIFF*); 303 extern TIFFSizeProc TIFFGetSizeProc(TIFF*); 304 extern TIFFMapFileProc TIFFGetMapFileProc(TIFF*); 305 extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*); 306 extern uint32 TIFFCurrentRow(TIFF*); 307 extern tdir_t TIFFCurrentDirectory(TIFF*); 308 extern tdir_t TIFFNumberOfDirectories(TIFF*); 309 extern uint32 TIFFCurrentDirOffset(TIFF*); 310 extern tstrip_t TIFFCurrentStrip(TIFF*); 311 extern ttile_t TIFFCurrentTile(TIFF*); 312 extern int TIFFReadBufferSetup(TIFF*, tdata_t, tsize_t); 313 extern int TIFFWriteBufferSetup(TIFF*, tdata_t, tsize_t); 314 extern int TIFFSetupStrips(TIFF *); 315 extern int TIFFWriteCheck(TIFF*, int, const char *); 316 extern int TIFFCreateDirectory(TIFF*); 317 extern int TIFFLastDirectory(TIFF*); 318 extern int TIFFSetDirectory(TIFF*, tdir_t); 319 extern int TIFFSetSubDirectory(TIFF*, uint32); 320 extern int TIFFUnlinkDirectory(TIFF*, tdir_t); 321 extern int TIFFSetField(TIFF*, ttag_t, ...); 322 extern int TIFFVSetField(TIFF*, ttag_t, va_list); 323 extern int TIFFWriteDirectory(TIFF *); 324 extern int TIFFCheckpointDirectory(TIFF *); 325 extern int TIFFRewriteDirectory(TIFF *); 326 extern int TIFFReassignTagToIgnore(enum TIFFIgnoreSense, int); 327 328 #if defined(c_plusplus) || defined(__cplusplus) 329 extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0); 330 extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t = 0); 331 extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t = 0); 332 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0); 333 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, 334 int = ORIENTATION_BOTLEFT, int = 0); 335 #else 336 extern void TIFFPrintDirectory(TIFF*, FILE*, long); 337 extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t); 338 extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t); 339 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int); 340 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int); 341 #endif 342 343 extern int TIFFReadRGBAStrip(TIFF*, tstrip_t, uint32 * ); 344 extern int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * ); 345 extern int TIFFRGBAImageOK(TIFF*, char [1024]); 346 extern int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]); 347 extern int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32); 348 extern void TIFFRGBAImageEnd(TIFF*, TIFFRGBAImage*); 349 extern TIFF* TIFFOpen(const char*, const char*, void*, 350 TIFFmallocHandler, TIFFreallocHandler, TIFFfreeHandler, 351 TIFFErrorHandler, TIFFErrorHandler); 352 # ifdef __WIN32__ 353 extern TIFF* TIFFOpenW(const wchar_t*, const char*, void*, 354 TIFFmallocHandler, TIFFreallocHandler, 355 TIFFfreeHandler, TIFFErrorHandler, TIFFErrorHandler); 356 # endif /* __WIN32__ */ 357 extern TIFF* TIFFFdOpen(void*, const char*, const char*, void*, 358 TIFFmallocHandler, TIFFreallocHandler, TIFFfreeHandler, 359 TIFFErrorHandler, TIFFErrorHandler); 360 extern TIFF* TIFFClientOpen(const char*, const char*, void*, 361 TIFFReadWriteProc, TIFFReadWriteProc, 362 TIFFSeekProc, TIFFCloseProc, 363 TIFFSizeProc, 364 TIFFMapFileProc, TIFFUnmapFileProc, void*, 365 TIFFmallocHandler, TIFFreallocHandler, TIFFfreeHandler, 366 TIFFErrorHandler, TIFFErrorHandler); 367 extern const char* TIFFFileName(TIFF*); 368 extern const char* TIFFSetFileName(TIFF*, const char *); 369 extern void _TIFFError(TIFF* tif, const char*, const char*, ...); 370 extern void _TIFFWarning(TIFF*, const char*, const char*, ...); 371 extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler); 372 extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler); 373 extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc); 374 extern ttile_t TIFFComputeTile(TIFF*, uint32, uint32, uint32, tsample_t); 375 extern int TIFFCheckTile(TIFF*, uint32, uint32, uint32, tsample_t); 376 extern ttile_t TIFFNumberOfTiles(TIFF*); 377 extern tsize_t TIFFReadTile(TIFF*, 378 tdata_t, uint32, uint32, uint32, tsample_t); 379 extern tsize_t TIFFWriteTile(TIFF*, 380 tdata_t, uint32, uint32, uint32, tsample_t); 381 extern tstrip_t TIFFComputeStrip(TIFF*, uint32, tsample_t); 382 extern tstrip_t TIFFNumberOfStrips(TIFF*); 383 extern tsize_t TIFFReadEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 384 extern tsize_t TIFFReadRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 385 extern tsize_t TIFFReadEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t); 386 extern tsize_t TIFFReadRawTile(TIFF*, ttile_t, tdata_t, tsize_t); 387 extern tsize_t TIFFWriteEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 388 extern tsize_t TIFFWriteRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t); 389 extern tsize_t TIFFWriteEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t); 390 extern tsize_t TIFFWriteRawTile(TIFF*, ttile_t, tdata_t, tsize_t); 391 extern int TIFFDataWidth(TIFFDataType); /* table of tag datatype widths */ 392 extern void TIFFSetWriteOffset(TIFF*, toff_t); 393 extern void TIFFSwabShort(uint16*); 394 extern void TIFFSwabLong(uint32*); 395 extern void TIFFSwabDouble(double*); 396 extern void TIFFSwabArrayOfShort(uint16*, unsigned long); 397 extern void TIFFSwabArrayOfTriples(uint8*, unsigned long); 398 extern void TIFFSwabArrayOfLong(uint32*, unsigned long); 399 extern void TIFFSwabArrayOfDouble(double*, unsigned long); 400 extern void TIFFReverseBits(unsigned char *, unsigned long); 401 extern const unsigned char* TIFFGetBitRevTable(int); 402 403 #ifdef LOGLUV_PUBLIC 404 #define U_NEU 0.210526316 405 #define V_NEU 0.473684211 406 #define UVSCALE 410. 407 extern double LogL16toY(int); 408 extern double LogL10toY(int); 409 extern void XYZtoRGB24(float*, uint8*); 410 extern int uv_decode(double*, double*, int); 411 extern void LogLuv24toXYZ(uint32, float*); 412 extern void LogLuv32toXYZ(uint32, float*); 413 #if defined(c_plusplus) || defined(__cplusplus) 414 extern int LogL16fromY(double, int = SGILOGENCODE_NODITHER); 415 extern int LogL10fromY(double, int = SGILOGENCODE_NODITHER); 416 extern int uv_encode(double, double, int = SGILOGENCODE_NODITHER); 417 extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER); 418 extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER); 419 #else 420 extern int LogL16fromY(double, int); 421 extern int LogL10fromY(double, int); 422 extern int uv_encode(double, double, int); 423 extern uint32 LogLuv24fromXYZ(float*, int); 424 extern uint32 LogLuv32fromXYZ(float*, int); 425 #endif 426 #endif /* LOGLUV_PUBLIC */ 427 428 /* 429 ** Stuff, related to tag handling and creating custom tags. 430 */ 431 extern int TIFFGetTagListCount( TIFF * ); 432 extern ttag_t TIFFGetTagListEntry( TIFF *, int tag_index ); 433 434 #define TIFF_ANY TIFF_NOTYPE /* for field descriptor searching */ 435 #define TIFF_VARIABLE -1 /* marker for variable length tags */ 436 #define TIFF_SPP -2 /* marker for SamplesPerPixel tags */ 437 #define TIFF_VARIABLE2 -3 /* marker for uint32 var-length tags */ 438 439 #define FIELD_CUSTOM 65 440 441 typedef struct { 442 ttag_t field_tag; /* field's tag */ 443 short field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */ 444 short field_writecount; /* write count/TIFF_VARIABLE */ 445 TIFFDataType field_type; /* type of associated data */ 446 unsigned short field_bit; /* bit in fieldsset bit vector */ 447 unsigned char field_oktochange; /* if true, can change while writing */ 448 unsigned char field_passcount; /* if true, pass dir count on set */ 449 char *field_name; /* ASCII name */ 450 } TIFFFieldInfo; 451 452 typedef struct _TIFFTagValue { 453 const TIFFFieldInfo *info; 454 int count; 455 void *value; 456 } TIFFTagValue; 457 458 extern void TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int); 459 extern const TIFFFieldInfo* TIFFFindFieldInfo(TIFF*, ttag_t, TIFFDataType); 460 extern const TIFFFieldInfo* TIFFFindFieldInfoByName(TIFF* , const char *, 461 TIFFDataType); 462 extern const TIFFFieldInfo* TIFFFieldWithTag(TIFF*, ttag_t); 463 extern const TIFFFieldInfo* TIFFFieldWithName(TIFF*, const char *); 464 465 typedef int (*TIFFVSetMethod)(TIFF*, ttag_t, va_list); 466 typedef int (*TIFFVGetMethod)(TIFF*, ttag_t, va_list); 467 typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long); 468 469 typedef struct { 470 TIFFVSetMethod vsetfield; /* tag set routine */ 471 TIFFVGetMethod vgetfield; /* tag get routine */ 472 TIFFPrintMethod printdir; /* directory print routine */ 473 } TIFFTagMethods; 474 475 extern TIFFTagMethods *TIFFAccessTagMethods( TIFF * ); 476 extern void *TIFFGetClientInfo( TIFF *, const char * ); 477 extern void TIFFSetClientInfo( TIFF *, void *, const char * ); 478 479 extern int TIFFCIELabToRGBInit(TIFFCIELabToRGB*, TIFFDisplay *, float*); 480 extern void TIFFCIELabToXYZ(TIFFCIELabToRGB *, uint32, int32, int32, 481 float *, float *, float *); 482 extern void TIFFXYZToRGB(TIFFCIELabToRGB *, float, float, float, 483 uint32 *, uint32 *, uint32 *); 484 485 extern int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*); 486 extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *, uint32, int32, int32, 487 uint32 *, uint32 *, uint32 *); 488 489 #if defined(c_plusplus) || defined(__cplusplus) 490 } 491 #endif 492 493 #endif /* _TIFFIO_ */ 494 495 /* vim: set ts=8 sts=8 sw=8 noet: */ 496