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1 /* $Id: tiffio.h,v 1.94 2017-01-11 19:02:49 erouault 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, 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 palette */
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 conversion 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* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz);
297 extern void* _TIFFrealloc(void* p, tmsize_t s);
298 extern void _TIFFmemset(void* p, int v, tmsize_t c);
299 extern void _TIFFmemcpy(void* d, const void* s, tmsize_t c);
300 extern int _TIFFmemcmp(const void* p1, const void* p2, tmsize_t c);
301 extern void _TIFFfree(void* p);
302 extern int _TIFFIfMultiplicationOverflow(tmsize_t op1, tmsize_t op2);
303 
304 /*
305 ** Stuff, related to tag handling and creating custom tags.
306 */
307 extern int TIFFGetTagListCount( TIFF * );
308 extern uint32 TIFFGetTagListEntry( TIFF *, int tag_index );
309 
310 #define TIFF_ANY       TIFF_NOTYPE     /* for field descriptor searching */
311 #define TIFF_VARIABLE  -1              /* marker for variable length tags */
312 #define TIFF_SPP       -2              /* marker for SamplesPerPixel tags */
313 #define TIFF_VARIABLE2 -3              /* marker for uint32 var-length tags */
314 
315 #define FIELD_CUSTOM    65
316 
317 typedef struct _TIFFField TIFFField;
318 typedef struct _TIFFFieldArray TIFFFieldArray;
319 
320 extern const TIFFField* TIFFFindField(TIFF *, uint32, TIFFDataType);
321 extern const TIFFField* TIFFFieldWithTag(TIFF*, uint32);
322 extern const TIFFField* TIFFFieldWithName(TIFF*, const char *);
323 
324 extern uint32 TIFFFieldTag(const TIFFField*);
325 extern const char* TIFFFieldName(const TIFFField*);
326 extern TIFFDataType TIFFFieldDataType(const TIFFField*);
327 extern int TIFFFieldPassCount(const TIFFField*);
328 extern int TIFFFieldReadCount(const TIFFField*);
329 extern int TIFFFieldWriteCount(const TIFFField*);
330 
331 typedef int (*TIFFVSetMethod)(TIFF*, uint32, va_list);
332 typedef int (*TIFFVGetMethod)(TIFF*, uint32, va_list);
333 typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long);
334 
335 typedef struct {
336     TIFFVSetMethod vsetfield; /* tag set routine */
337     TIFFVGetMethod vgetfield; /* tag get routine */
338     TIFFPrintMethod printdir; /* directory print routine */
339 } TIFFTagMethods;
340 
341 extern  TIFFTagMethods *TIFFAccessTagMethods(TIFF *);
342 extern  void *TIFFGetClientInfo(TIFF *, const char *);
343 extern  void TIFFSetClientInfo(TIFF *, void *, const char *);
344 
345 extern void TIFFCleanup(TIFF* tif);
346 extern void TIFFClose(TIFF* tif);
347 extern int TIFFFlush(TIFF* tif);
348 extern int TIFFFlushData(TIFF* tif);
349 extern int TIFFGetField(TIFF* tif, uint32 tag, ...);
350 extern int TIFFVGetField(TIFF* tif, uint32 tag, va_list ap);
351 extern int TIFFGetFieldDefaulted(TIFF* tif, uint32 tag, ...);
352 extern int TIFFVGetFieldDefaulted(TIFF* tif, uint32 tag, va_list ap);
353 extern int TIFFReadDirectory(TIFF* tif);
354 extern int TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, const TIFFFieldArray* infoarray);
355 extern int TIFFReadEXIFDirectory(TIFF* tif, toff_t diroff);
356 extern uint64 TIFFScanlineSize64(TIFF* tif);
357 extern tmsize_t TIFFScanlineSize(TIFF* tif);
358 extern uint64 TIFFRasterScanlineSize64(TIFF* tif);
359 extern tmsize_t TIFFRasterScanlineSize(TIFF* tif);
360 extern uint64 TIFFStripSize64(TIFF* tif);
361 extern tmsize_t TIFFStripSize(TIFF* tif);
362 extern uint64 TIFFRawStripSize64(TIFF* tif, uint32 strip);
363 extern tmsize_t TIFFRawStripSize(TIFF* tif, uint32 strip);
364 extern uint64 TIFFVStripSize64(TIFF* tif, uint32 nrows);
365 extern tmsize_t TIFFVStripSize(TIFF* tif, uint32 nrows);
366 extern uint64 TIFFTileRowSize64(TIFF* tif);
367 extern tmsize_t TIFFTileRowSize(TIFF* tif);
368 extern uint64 TIFFTileSize64(TIFF* tif);
369 extern tmsize_t TIFFTileSize(TIFF* tif);
370 extern uint64 TIFFVTileSize64(TIFF* tif, uint32 nrows);
371 extern tmsize_t TIFFVTileSize(TIFF* tif, uint32 nrows);
372 extern uint32 TIFFDefaultStripSize(TIFF* tif, uint32 request);
373 extern void TIFFDefaultTileSize(TIFF*, uint32*, uint32*);
374 extern int TIFFFileno(TIFF*);
375 extern int TIFFSetFileno(TIFF*, int);
376 extern thandle_t TIFFClientdata(TIFF*);
377 extern thandle_t TIFFSetClientdata(TIFF*, thandle_t);
378 extern int TIFFGetMode(TIFF*);
379 extern int TIFFSetMode(TIFF*, int);
380 extern int TIFFIsTiled(TIFF*);
381 extern int TIFFIsByteSwapped(TIFF*);
382 extern int TIFFIsUpSampled(TIFF*);
383 extern int TIFFIsMSB2LSB(TIFF*);
384 extern int TIFFIsBigEndian(TIFF*);
385 extern TIFFReadWriteProc TIFFGetReadProc(TIFF*);
386 extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*);
387 extern TIFFSeekProc TIFFGetSeekProc(TIFF*);
388 extern TIFFCloseProc TIFFGetCloseProc(TIFF*);
389 extern TIFFSizeProc TIFFGetSizeProc(TIFF*);
390 extern TIFFMapFileProc TIFFGetMapFileProc(TIFF*);
391 extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*);
392 extern uint32 TIFFCurrentRow(TIFF*);
393 extern uint16 TIFFCurrentDirectory(TIFF*);
394 extern uint16 TIFFNumberOfDirectories(TIFF*);
395 extern uint64 TIFFCurrentDirOffset(TIFF*);
396 extern uint32 TIFFCurrentStrip(TIFF*);
397 extern uint32 TIFFCurrentTile(TIFF* tif);
398 extern int TIFFReadBufferSetup(TIFF* tif, void* bp, tmsize_t size);
399 extern int TIFFWriteBufferSetup(TIFF* tif, void* bp, tmsize_t size);
400 extern int TIFFSetupStrips(TIFF *);
401 extern int TIFFWriteCheck(TIFF*, int, const char *);
402 extern void TIFFFreeDirectory(TIFF*);
403 extern int TIFFCreateDirectory(TIFF*);
404 extern int TIFFCreateCustomDirectory(TIFF*,const TIFFFieldArray*);
405 extern int TIFFCreateEXIFDirectory(TIFF*);
406 extern int TIFFLastDirectory(TIFF*);
407 extern int TIFFSetDirectory(TIFF*, uint16);
408 extern int TIFFSetSubDirectory(TIFF*, uint64);
409 extern int TIFFUnlinkDirectory(TIFF*, uint16);
410 extern int TIFFSetField(TIFF*, uint32, ...);
411 extern int TIFFVSetField(TIFF*, uint32, va_list);
412 extern int TIFFUnsetField(TIFF*, uint32);
413 extern int TIFFWriteDirectory(TIFF *);
414 extern int TIFFWriteCustomDirectory(TIFF *, uint64 *);
415 extern int TIFFCheckpointDirectory(TIFF *);
416 extern int TIFFRewriteDirectory(TIFF *);
417 
418 #if defined(c_plusplus) || defined(__cplusplus)
419 extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0);
420 extern int TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample = 0);
421 extern int TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample = 0);
422 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0);
423 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*,
424     int = ORIENTATION_BOTLEFT, int = 0);
425 #else
426 extern void TIFFPrintDirectory(TIFF*, FILE*, long);
427 extern int TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample);
428 extern int TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample);
429 extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int);
430 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int);
431 #endif
432 
433 extern int TIFFReadRGBAStrip(TIFF*, uint32, uint32 * );
434 extern int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * );
435 extern int TIFFReadRGBAStripExt(TIFF*, uint32, uint32 *, int stop_on_error );
436 extern int TIFFReadRGBATileExt(TIFF*, uint32, uint32, uint32 *, int stop_on_error );
437 extern int TIFFRGBAImageOK(TIFF*, char [1024]);
438 extern int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]);
439 extern int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32);
440 extern void TIFFRGBAImageEnd(TIFFRGBAImage*);
441 extern TIFF* TIFFOpen(const char*, const char*);
442 # ifdef __WIN32__
443 extern TIFF* TIFFOpenW(const wchar_t*, const char*);
444 # endif /* __WIN32__ */
445 extern TIFF* TIFFFdOpen(int, const char*, const char*);
446 extern TIFF* TIFFClientOpen(const char*, const char*,
447 	    thandle_t,
448 	    TIFFReadWriteProc, TIFFReadWriteProc,
449 	    TIFFSeekProc, TIFFCloseProc,
450 	    TIFFSizeProc,
451 	    TIFFMapFileProc, TIFFUnmapFileProc);
452 extern const char* TIFFFileName(TIFF*);
453 extern const char* TIFFSetFileName(TIFF*, const char *);
454 extern void TIFFError(const char*, const char*, ...) __attribute__((__format__ (__printf__,2,3)));
455 extern void TIFFErrorExt(thandle_t, const char*, const char*, ...) __attribute__((__format__ (__printf__,3,4)));
456 extern void TIFFWarning(const char*, const char*, ...) __attribute__((__format__ (__printf__,2,3)));
457 extern void TIFFWarningExt(thandle_t, const char*, const char*, ...) __attribute__((__format__ (__printf__,3,4)));
458 extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler);
459 extern TIFFErrorHandlerExt TIFFSetErrorHandlerExt(TIFFErrorHandlerExt);
460 extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler);
461 extern TIFFErrorHandlerExt TIFFSetWarningHandlerExt(TIFFErrorHandlerExt);
462 extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc);
463 extern uint32 TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s);
464 extern int TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s);
465 extern uint32 TIFFNumberOfTiles(TIFF*);
466 extern tmsize_t TIFFReadTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s);
467 extern tmsize_t TIFFWriteTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s);
468 extern uint32 TIFFComputeStrip(TIFF*, uint32, uint16);
469 extern uint32 TIFFNumberOfStrips(TIFF*);
470 extern tmsize_t TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size);
471 extern tmsize_t TIFFReadRawStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size);
472 extern tmsize_t TIFFReadEncodedTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size);
473 extern tmsize_t TIFFReadRawTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size);
474 extern tmsize_t TIFFWriteEncodedStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc);
475 extern tmsize_t TIFFWriteRawStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc);
476 extern tmsize_t TIFFWriteEncodedTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc);
477 extern tmsize_t TIFFWriteRawTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc);
478 extern int TIFFDataWidth(TIFFDataType);    /* table of tag datatype widths */
479 extern void TIFFSetWriteOffset(TIFF* tif, toff_t off);
480 extern void TIFFSwabShort(uint16*);
481 extern void TIFFSwabLong(uint32*);
482 extern void TIFFSwabLong8(uint64*);
483 extern void TIFFSwabFloat(float*);
484 extern void TIFFSwabDouble(double*);
485 extern void TIFFSwabArrayOfShort(uint16* wp, tmsize_t n);
486 extern void TIFFSwabArrayOfTriples(uint8* tp, tmsize_t n);
487 extern void TIFFSwabArrayOfLong(uint32* lp, tmsize_t n);
488 extern void TIFFSwabArrayOfLong8(uint64* lp, tmsize_t n);
489 extern void TIFFSwabArrayOfFloat(float* fp, tmsize_t n);
490 extern void TIFFSwabArrayOfDouble(double* dp, tmsize_t n);
491 extern void TIFFReverseBits(uint8* cp, tmsize_t n);
492 extern const unsigned char* TIFFGetBitRevTable(int);
493 
494 #ifdef LOGLUV_PUBLIC
495 #define U_NEU		0.210526316
496 #define V_NEU		0.473684211
497 #define UVSCALE		410.
498 extern double LogL16toY(int);
499 extern double LogL10toY(int);
500 extern void XYZtoRGB24(float*, uint8*);
501 extern int uv_decode(double*, double*, int);
502 extern void LogLuv24toXYZ(uint32, float*);
503 extern void LogLuv32toXYZ(uint32, float*);
504 #if defined(c_plusplus) || defined(__cplusplus)
505 extern int LogL16fromY(double, int = SGILOGENCODE_NODITHER);
506 extern int LogL10fromY(double, int = SGILOGENCODE_NODITHER);
507 extern int uv_encode(double, double, int = SGILOGENCODE_NODITHER);
508 extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER);
509 extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER);
510 #else
511 extern int LogL16fromY(double, int);
512 extern int LogL10fromY(double, int);
513 extern int uv_encode(double, double, int);
514 extern uint32 LogLuv24fromXYZ(float*, int);
515 extern uint32 LogLuv32fromXYZ(float*, int);
516 #endif
517 #endif /* LOGLUV_PUBLIC */
518 
519 extern int TIFFCIELabToRGBInit(TIFFCIELabToRGB*, const TIFFDisplay *, float*);
520 extern void TIFFCIELabToXYZ(TIFFCIELabToRGB *, uint32, int32, int32,
521     float *, float *, float *);
522 extern void TIFFXYZToRGB(TIFFCIELabToRGB *, float, float, float,
523     uint32 *, uint32 *, uint32 *);
524 
525 extern int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*);
526 extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *, uint32, int32, int32,
527     uint32 *, uint32 *, uint32 *);
528 
529 /****************************************************************************
530  *               O B S O L E T E D    I N T E R F A C E S
531  *
532  * Don't use this stuff in your applications, it may be removed in the future
533  * libtiff versions.
534  ****************************************************************************/
535 typedef	struct {
536 	ttag_t	field_tag;		/* field's tag */
537 	short	field_readcount;	/* read count/TIFF_VARIABLE/TIFF_SPP */
538 	short	field_writecount;	/* write count/TIFF_VARIABLE */
539 	TIFFDataType field_type;	/* type of associated data */
540         unsigned short field_bit;	/* bit in fieldsset bit vector */
541 	unsigned char field_oktochange;	/* if true, can change while writing */
542 	unsigned char field_passcount;	/* if true, pass dir count on set */
543 	char	*field_name;		/* ASCII name */
544 } TIFFFieldInfo;
545 
546 extern int TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], uint32);
547 
548 #if defined(c_plusplus) || defined(__cplusplus)
549 }
550 #endif
551 
552 #endif /* _TIFFIO_ */
553 
554 /* vim: set ts=8 sts=8 sw=8 noet: */
555 /*
556  * Local Variables:
557  * mode: c
558  * c-basic-offset: 8
559  * fill-column: 78
560  * End:
561  */
562