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root/radiance/ray/src/common/tiffio.h
Revision: 3.13
Committed: Fri Sep 23 19:04:52 2005 UTC (19 years, 1 month ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 3.12: +0 -0 lines
Log Message:
Rearranged some struct's for better efficiency on 64-bit architectures

File Contents

# User Rev Content
1 greg 3.12 /* $Id: tiffio.h,v 1.43 2005/04/13 14:06:21 dron Exp $ */
2    
3 greg 3.1 /*
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_win32.c is assumed on windows if not using the cygwin
79     * environment.
80     */
81    
82     #if defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows)
83     # if !defined(__CYGWIN) && !defined(AVOID_WIN32_FILEIO) && !defined(USE_WIN32_FILIO)
84     # define USE_WIN32_FILEIO
85     # endif
86     #endif
87    
88     #if defined(USE_WIN32_FILEIO)
89 greg 3.11 # include <windows.h>
90     # ifdef __WIN32__
91 greg 3.1 DECLARE_HANDLE(thandle_t); /* Win32 file handle */
92 greg 3.11 # else
93 greg 3.1 typedef HFILE thandle_t; /* client data handle */
94 greg 3.11 # endif /* __WIN32__ */
95 greg 3.1 #else
96     typedef void* thandle_t; /* client data handle */
97 greg 3.11 #endif /* USE_WIN32_FILEIO */
98 greg 3.1
99     #ifndef NULL
100 greg 3.11 # define NULL (void *)0
101 greg 3.1 #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 greg 3.11 /*
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 greg 3.1 /*
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 greg 3.11 uint16 req_orientation; /* requested orientation */
204 greg 3.1 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 greg 3.11 TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */
220 greg 3.1
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 greg 3.10 /* share internal LogLuv conversion routines? */
252 greg 3.1 #ifndef LOGLUV_PUBLIC
253 greg 3.10 #define LOGLUV_PUBLIC 1
254 greg 3.1 #endif
255    
256 greg 3.11 #if defined(c_plusplus) || defined(__cplusplus)
257 greg 3.1 extern "C" {
258     #endif
259     typedef void (*TIFFErrorHandler)(const char*, const char*, va_list);
260     typedef tsize_t (*TIFFReadWriteProc)(thandle_t, tdata_t, tsize_t);
261     typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int);
262     typedef int (*TIFFCloseProc)(thandle_t);
263     typedef toff_t (*TIFFSizeProc)(thandle_t);
264     typedef int (*TIFFMapFileProc)(thandle_t, tdata_t*, toff_t*);
265     typedef void (*TIFFUnmapFileProc)(thandle_t, tdata_t, toff_t);
266     typedef void (*TIFFExtendProc)(TIFF*);
267    
268     extern const char* TIFFGetVersion(void);
269    
270     extern const TIFFCodec* TIFFFindCODEC(uint16);
271     extern TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod);
272     extern void TIFFUnRegisterCODEC(TIFFCodec*);
273 greg 3.11 extern int TIFFIsCODECConfigured(uint16);
274     extern TIFFCodec* TIFFGetConfiguredCODECs();
275 greg 3.1
276     extern tdata_t _TIFFmalloc(tsize_t);
277     extern tdata_t _TIFFrealloc(tdata_t, tsize_t);
278     extern void _TIFFmemset(tdata_t, int, tsize_t);
279     extern void _TIFFmemcpy(tdata_t, const tdata_t, tsize_t);
280     extern int _TIFFmemcmp(const tdata_t, const tdata_t, tsize_t);
281     extern void _TIFFfree(tdata_t);
282    
283 greg 3.11 extern void TIFFCleanup(TIFF*);
284 greg 3.1 extern void TIFFClose(TIFF*);
285     extern int TIFFFlush(TIFF*);
286     extern int TIFFFlushData(TIFF*);
287     extern int TIFFGetField(TIFF*, ttag_t, ...);
288     extern int TIFFVGetField(TIFF*, ttag_t, va_list);
289     extern int TIFFGetFieldDefaulted(TIFF*, ttag_t, ...);
290     extern int TIFFVGetFieldDefaulted(TIFF*, ttag_t, va_list);
291     extern int TIFFReadDirectory(TIFF*);
292     extern tsize_t TIFFScanlineSize(TIFF*);
293     extern tsize_t TIFFRasterScanlineSize(TIFF*);
294     extern tsize_t TIFFStripSize(TIFF*);
295 greg 3.11 extern tsize_t TIFFRawStripSize(TIFF*, tstrip_t);
296 greg 3.1 extern tsize_t TIFFVStripSize(TIFF*, uint32);
297     extern tsize_t TIFFTileRowSize(TIFF*);
298     extern tsize_t TIFFTileSize(TIFF*);
299     extern tsize_t TIFFVTileSize(TIFF*, uint32);
300     extern uint32 TIFFDefaultStripSize(TIFF*, uint32);
301     extern void TIFFDefaultTileSize(TIFF*, uint32*, uint32*);
302     extern int TIFFFileno(TIFF*);
303 greg 3.11 extern int TIFFSetFileno(TIFF*, int);
304     extern thandle_t TIFFClientdata(TIFF*);
305     extern thandle_t TIFFSetClientdata(TIFF*, thandle_t);
306 greg 3.1 extern int TIFFGetMode(TIFF*);
307 greg 3.11 extern int TIFFSetMode(TIFF*, int);
308 greg 3.1 extern int TIFFIsTiled(TIFF*);
309     extern int TIFFIsByteSwapped(TIFF*);
310     extern int TIFFIsUpSampled(TIFF*);
311     extern int TIFFIsMSB2LSB(TIFF*);
312 greg 3.11 extern int TIFFIsBigEndian(TIFF*);
313     extern TIFFReadWriteProc TIFFGetReadProc(TIFF*);
314     extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*);
315     extern TIFFSeekProc TIFFGetSeekProc(TIFF*);
316     extern TIFFCloseProc TIFFGetCloseProc(TIFF*);
317     extern TIFFSizeProc TIFFGetSizeProc(TIFF*);
318     extern TIFFMapFileProc TIFFGetMapFileProc(TIFF*);
319     extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*);
320 greg 3.1 extern uint32 TIFFCurrentRow(TIFF*);
321     extern tdir_t TIFFCurrentDirectory(TIFF*);
322     extern tdir_t TIFFNumberOfDirectories(TIFF*);
323     extern uint32 TIFFCurrentDirOffset(TIFF*);
324     extern tstrip_t TIFFCurrentStrip(TIFF*);
325     extern ttile_t TIFFCurrentTile(TIFF*);
326     extern int TIFFReadBufferSetup(TIFF*, tdata_t, tsize_t);
327     extern int TIFFWriteBufferSetup(TIFF*, tdata_t, tsize_t);
328 greg 3.11 extern int TIFFSetupStrips(TIFF *);
329 greg 3.1 extern int TIFFWriteCheck(TIFF*, int, const char *);
330     extern int TIFFCreateDirectory(TIFF*);
331     extern int TIFFLastDirectory(TIFF*);
332     extern int TIFFSetDirectory(TIFF*, tdir_t);
333     extern int TIFFSetSubDirectory(TIFF*, uint32);
334     extern int TIFFUnlinkDirectory(TIFF*, tdir_t);
335     extern int TIFFSetField(TIFF*, ttag_t, ...);
336     extern int TIFFVSetField(TIFF*, ttag_t, va_list);
337     extern int TIFFWriteDirectory(TIFF *);
338 greg 3.11 extern int TIFFCheckpointDirectory(TIFF *);
339 greg 3.10 extern int TIFFRewriteDirectory(TIFF *);
340 greg 3.1 extern int TIFFReassignTagToIgnore(enum TIFFIgnoreSense, int);
341    
342     #if defined(c_plusplus) || defined(__cplusplus)
343     extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0);
344     extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t = 0);
345     extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t = 0);
346     extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0);
347 greg 3.11 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*,
348     int = ORIENTATION_BOTLEFT, int = 0);
349 greg 3.1 #else
350     extern void TIFFPrintDirectory(TIFF*, FILE*, long);
351     extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t);
352     extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t);
353     extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int);
354 greg 3.11 extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int);
355 greg 3.1 #endif
356    
357     extern int TIFFReadRGBAStrip(TIFF*, tstrip_t, uint32 * );
358     extern int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * );
359     extern int TIFFRGBAImageOK(TIFF*, char [1024]);
360     extern int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]);
361     extern int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32);
362     extern void TIFFRGBAImageEnd(TIFFRGBAImage*);
363     extern TIFF* TIFFOpen(const char*, const char*);
364 greg 3.11 # ifdef __WIN32__
365     extern TIFF* TIFFOpenW(const wchar_t*, const char*);
366     # endif /* __WIN32__ */
367 greg 3.1 extern TIFF* TIFFFdOpen(int, const char*, const char*);
368     extern TIFF* TIFFClientOpen(const char*, const char*,
369     thandle_t,
370     TIFFReadWriteProc, TIFFReadWriteProc,
371     TIFFSeekProc, TIFFCloseProc,
372     TIFFSizeProc,
373     TIFFMapFileProc, TIFFUnmapFileProc);
374     extern const char* TIFFFileName(TIFF*);
375 greg 3.11 extern const char* TIFFSetFileName(TIFF*, const char *);
376 greg 3.1 extern void TIFFError(const char*, const char*, ...);
377     extern void TIFFWarning(const char*, const char*, ...);
378     extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler);
379     extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler);
380     extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc);
381     extern ttile_t TIFFComputeTile(TIFF*, uint32, uint32, uint32, tsample_t);
382     extern int TIFFCheckTile(TIFF*, uint32, uint32, uint32, tsample_t);
383     extern ttile_t TIFFNumberOfTiles(TIFF*);
384     extern tsize_t TIFFReadTile(TIFF*,
385     tdata_t, uint32, uint32, uint32, tsample_t);
386     extern tsize_t TIFFWriteTile(TIFF*,
387     tdata_t, uint32, uint32, uint32, tsample_t);
388     extern tstrip_t TIFFComputeStrip(TIFF*, uint32, tsample_t);
389     extern tstrip_t TIFFNumberOfStrips(TIFF*);
390     extern tsize_t TIFFReadEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
391     extern tsize_t TIFFReadRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
392     extern tsize_t TIFFReadEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t);
393     extern tsize_t TIFFReadRawTile(TIFF*, ttile_t, tdata_t, tsize_t);
394     extern tsize_t TIFFWriteEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
395     extern tsize_t TIFFWriteRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t);
396     extern tsize_t TIFFWriteEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t);
397     extern tsize_t TIFFWriteRawTile(TIFF*, ttile_t, tdata_t, tsize_t);
398 greg 3.11 extern int TIFFDataWidth(TIFFDataType); /* table of tag datatype widths */
399 greg 3.1 extern void TIFFSetWriteOffset(TIFF*, toff_t);
400     extern void TIFFSwabShort(uint16*);
401     extern void TIFFSwabLong(uint32*);
402     extern void TIFFSwabDouble(double*);
403     extern void TIFFSwabArrayOfShort(uint16*, unsigned long);
404 greg 3.11 extern void TIFFSwabArrayOfTriples(uint8*, unsigned long);
405 greg 3.1 extern void TIFFSwabArrayOfLong(uint32*, unsigned long);
406     extern void TIFFSwabArrayOfDouble(double*, unsigned long);
407     extern void TIFFReverseBits(unsigned char *, unsigned long);
408     extern const unsigned char* TIFFGetBitRevTable(int);
409    
410 greg 3.11 #ifdef LOGLUV_PUBLIC
411 greg 3.1 #define U_NEU 0.210526316
412     #define V_NEU 0.473684211
413     #define UVSCALE 410.
414     extern double LogL16toY(int);
415     extern double LogL10toY(int);
416     extern void XYZtoRGB24(float*, uint8*);
417     extern int uv_decode(double*, double*, int);
418     extern void LogLuv24toXYZ(uint32, float*);
419     extern void LogLuv32toXYZ(uint32, float*);
420     #if defined(c_plusplus) || defined(__cplusplus)
421     extern int LogL16fromY(double, int = SGILOGENCODE_NODITHER);
422     extern int LogL10fromY(double, int = SGILOGENCODE_NODITHER);
423     extern int uv_encode(double, double, int = SGILOGENCODE_NODITHER);
424     extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER);
425     extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER);
426     #else
427     extern int LogL16fromY(double, int);
428     extern int LogL10fromY(double, int);
429     extern int uv_encode(double, double, int);
430     extern uint32 LogLuv24fromXYZ(float*, int);
431     extern uint32 LogLuv32fromXYZ(float*, int);
432     #endif
433     #endif /* LOGLUV_PUBLIC */
434 greg 3.11
435     /*
436     ** Stuff, related to tag handling and creating custom tags.
437     */
438     extern int TIFFGetTagListCount( TIFF * );
439     extern ttag_t TIFFGetTagListEntry( TIFF *, int tag_index );
440    
441     #define TIFF_ANY TIFF_NOTYPE /* for field descriptor searching */
442     #define TIFF_VARIABLE -1 /* marker for variable length tags */
443     #define TIFF_SPP -2 /* marker for SamplesPerPixel tags */
444     #define TIFF_VARIABLE2 -3 /* marker for uint32 var-length tags */
445    
446     #define FIELD_CUSTOM 65
447    
448     typedef struct {
449     ttag_t field_tag; /* field's tag */
450     short field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */
451     short field_writecount; /* write count/TIFF_VARIABLE */
452     TIFFDataType field_type; /* type of associated data */
453     unsigned short field_bit; /* bit in fieldsset bit vector */
454     unsigned char field_oktochange; /* if true, can change while writing */
455     unsigned char field_passcount; /* if true, pass dir count on set */
456     char *field_name; /* ASCII name */
457     } TIFFFieldInfo;
458    
459     typedef struct _TIFFTagValue {
460     const TIFFFieldInfo *info;
461     int count;
462     void *value;
463     } TIFFTagValue;
464    
465     extern void TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int);
466     extern const TIFFFieldInfo* TIFFFindFieldInfo(TIFF*, ttag_t, TIFFDataType);
467     extern const TIFFFieldInfo* TIFFFindFieldInfoByName(TIFF* , const char *,
468     TIFFDataType);
469     extern const TIFFFieldInfo* TIFFFieldWithTag(TIFF*, ttag_t);
470     extern const TIFFFieldInfo* TIFFFieldWithName(TIFF*, const char *);
471    
472     typedef int (*TIFFVSetMethod)(TIFF*, ttag_t, va_list);
473     typedef int (*TIFFVGetMethod)(TIFF*, ttag_t, va_list);
474     typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long);
475    
476     typedef struct {
477     TIFFVSetMethod vsetfield; /* tag set routine */
478     TIFFVGetMethod vgetfield; /* tag get routine */
479     TIFFPrintMethod printdir; /* directory print routine */
480     } TIFFTagMethods;
481    
482     extern TIFFTagMethods *TIFFAccessTagMethods( TIFF * );
483     extern void *TIFFGetClientInfo( TIFF *, const char * );
484     extern void TIFFSetClientInfo( TIFF *, void *, const char * );
485    
486     extern int TIFFCIELabToRGBInit(TIFFCIELabToRGB*, TIFFDisplay *, float*);
487     extern void TIFFCIELabToXYZ(TIFFCIELabToRGB *, uint32, int32, int32,
488     float *, float *, float *);
489     extern void TIFFXYZToRGB(TIFFCIELabToRGB *, float, float, float,
490     uint32 *, uint32 *, uint32 *);
491    
492     extern int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*);
493     extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *, uint32, int32, int32,
494     uint32 *, uint32 *, uint32 *);
495    
496     #if defined(c_plusplus) || defined(__cplusplus)
497 greg 3.1 }
498     #endif
499 greg 3.11
500 greg 3.1 #endif /* _TIFFIO_ */
501 greg 3.11
502     /* vim: set ts=8 sts=8 sw=8 noet: */