1 /* $Id: tif_dirinfo.c,v 1.1 2005-06-17 13:54:52 vp153 Exp $ */
4 * Copyright (c) 1988-1997 Sam Leffler
5 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
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.
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.
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
30 * Core Directory Tag Support.
37 * NB: NB: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG.
38 * If a tag can have both LONG and SHORT types
39 * then the LONG must be placed before the SHORT for
40 * writing to work properly.
42 * NOTE: The second field (field_readcount) and third field (field_writecount)
43 * sometimes use the values TIFF_VARIABLE (-1), TIFF_VARIABLE2 (-3)
44 * and TIFFTAG_SPP (-2). The macros should be used but would throw off
45 * the formatting of the code, so please interprete the -1, -2 and -3
51 const TIFFFieldInfo tiffFieldInfo[] = {
52 { TIFFTAG_SUBFILETYPE, 1, 1, TIFF_LONG, FIELD_SUBFILETYPE,
53 TRUE, FALSE, "SubfileType" },
54 /* XXX SHORT for compatibility w/ old versions of the library */
55 { TIFFTAG_SUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE,
56 TRUE, FALSE, "SubfileType" },
57 { TIFFTAG_OSUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE,
58 TRUE, FALSE, "OldSubfileType" },
59 { TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS,
60 FALSE, FALSE, "ImageWidth" },
61 { TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS,
62 FALSE, FALSE, "ImageWidth" },
63 { TIFFTAG_IMAGELENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS,
64 TRUE, FALSE, "ImageLength" },
65 { TIFFTAG_IMAGELENGTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS,
66 TRUE, FALSE, "ImageLength" },
67 { TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_SHORT, FIELD_BITSPERSAMPLE,
68 FALSE, FALSE, "BitsPerSample" },
69 /* XXX LONG for compatibility with some broken TIFF writers */
70 { TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_LONG, FIELD_BITSPERSAMPLE,
71 FALSE, FALSE, "BitsPerSample" },
72 { TIFFTAG_COMPRESSION, -1, 1, TIFF_SHORT, FIELD_COMPRESSION,
73 FALSE, FALSE, "Compression" },
74 /* XXX LONG for compatibility with some broken TIFF writers */
75 { TIFFTAG_COMPRESSION, -1, 1, TIFF_LONG, FIELD_COMPRESSION,
76 FALSE, FALSE, "Compression" },
77 { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, FIELD_PHOTOMETRIC,
78 FALSE, FALSE, "PhotometricInterpretation" },
79 /* XXX LONG for compatibility with some broken TIFF writers */
80 { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_LONG, FIELD_PHOTOMETRIC,
81 FALSE, FALSE, "PhotometricInterpretation" },
82 { TIFFTAG_THRESHHOLDING, 1, 1, TIFF_SHORT, FIELD_THRESHHOLDING,
83 TRUE, FALSE, "Threshholding" },
84 { TIFFTAG_CELLWIDTH, 1, 1, TIFF_SHORT, FIELD_IGNORE,
85 TRUE, FALSE, "CellWidth" },
86 { TIFFTAG_CELLLENGTH, 1, 1, TIFF_SHORT, FIELD_IGNORE,
87 TRUE, FALSE, "CellLength" },
88 { TIFFTAG_FILLORDER, 1, 1, TIFF_SHORT, FIELD_FILLORDER,
89 FALSE, FALSE, "FillOrder" },
90 { TIFFTAG_DOCUMENTNAME, -1,-1, TIFF_ASCII, FIELD_DOCUMENTNAME,
91 TRUE, FALSE, "DocumentName" },
92 { TIFFTAG_IMAGEDESCRIPTION, -1,-1, TIFF_ASCII, FIELD_IMAGEDESCRIPTION,
93 TRUE, FALSE, "ImageDescription" },
94 { TIFFTAG_MAKE, -1,-1, TIFF_ASCII, FIELD_MAKE,
95 TRUE, FALSE, "Make" },
96 { TIFFTAG_MODEL, -1,-1, TIFF_ASCII, FIELD_MODEL,
97 TRUE, FALSE, "Model" },
98 { TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_LONG, FIELD_STRIPOFFSETS,
99 FALSE, FALSE, "StripOffsets" },
100 { TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_SHORT, FIELD_STRIPOFFSETS,
101 FALSE, FALSE, "StripOffsets" },
102 { TIFFTAG_ORIENTATION, 1, 1, TIFF_SHORT, FIELD_ORIENTATION,
103 FALSE, FALSE, "Orientation" },
104 { TIFFTAG_SAMPLESPERPIXEL, 1, 1, TIFF_SHORT, FIELD_SAMPLESPERPIXEL,
105 FALSE, FALSE, "SamplesPerPixel" },
106 { TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_LONG, FIELD_ROWSPERSTRIP,
107 FALSE, FALSE, "RowsPerStrip" },
108 { TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_SHORT, FIELD_ROWSPERSTRIP,
109 FALSE, FALSE, "RowsPerStrip" },
110 { TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
111 FALSE, FALSE, "StripByteCounts" },
112 { TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
113 FALSE, FALSE, "StripByteCounts" },
114 { TIFFTAG_MINSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MINSAMPLEVALUE,
115 TRUE, FALSE, "MinSampleValue" },
116 { TIFFTAG_MAXSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MAXSAMPLEVALUE,
117 TRUE, FALSE, "MaxSampleValue" },
118 { TIFFTAG_XRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION,
119 FALSE, FALSE, "XResolution" },
120 { TIFFTAG_YRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION,
121 FALSE, FALSE, "YResolution" },
122 { TIFFTAG_PLANARCONFIG, 1, 1, TIFF_SHORT, FIELD_PLANARCONFIG,
123 FALSE, FALSE, "PlanarConfiguration" },
124 { TIFFTAG_PAGENAME, -1,-1, TIFF_ASCII, FIELD_PAGENAME,
125 TRUE, FALSE, "PageName" },
126 { TIFFTAG_XPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION,
127 TRUE, FALSE, "XPosition" },
128 { TIFFTAG_YPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION,
129 TRUE, FALSE, "YPosition" },
130 { TIFFTAG_FREEOFFSETS, -1,-1, TIFF_LONG, FIELD_IGNORE,
131 FALSE, FALSE, "FreeOffsets" },
132 { TIFFTAG_FREEBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_IGNORE,
133 FALSE, FALSE, "FreeByteCounts" },
134 { TIFFTAG_GRAYRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE,
135 TRUE, FALSE, "GrayResponseUnit" },
136 { TIFFTAG_GRAYRESPONSECURVE,-1,-1, TIFF_SHORT, FIELD_IGNORE,
137 TRUE, FALSE, "GrayResponseCurve" },
138 { TIFFTAG_RESOLUTIONUNIT, 1, 1, TIFF_SHORT, FIELD_RESOLUTIONUNIT,
139 FALSE, FALSE, "ResolutionUnit" },
140 { TIFFTAG_PAGENUMBER, 2, 2, TIFF_SHORT, FIELD_PAGENUMBER,
141 TRUE, FALSE, "PageNumber" },
142 { TIFFTAG_COLORRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE,
143 TRUE, FALSE, "ColorResponseUnit" },
144 { TIFFTAG_TRANSFERFUNCTION, -1,-1, TIFF_SHORT, FIELD_TRANSFERFUNCTION,
145 TRUE, FALSE, "TransferFunction" },
146 { TIFFTAG_SOFTWARE, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
147 TRUE, FALSE, "Software" },
148 { TIFFTAG_DATETIME, 20,20, TIFF_ASCII, FIELD_DATETIME,
149 TRUE, FALSE, "DateTime" },
150 { TIFFTAG_ARTIST, -1,-1, TIFF_ASCII, FIELD_ARTIST,
151 TRUE, FALSE, "Artist" },
152 { TIFFTAG_HOSTCOMPUTER, -1,-1, TIFF_ASCII, FIELD_HOSTCOMPUTER,
153 TRUE, FALSE, "HostComputer" },
154 { TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL,FIELD_WHITEPOINT,
155 TRUE, FALSE, "WhitePoint" },
156 { TIFFTAG_PRIMARYCHROMATICITIES,6,6,TIFF_RATIONAL,FIELD_PRIMARYCHROMAS,
157 TRUE, FALSE, "PrimaryChromaticities" },
158 { TIFFTAG_COLORMAP, -1,-1, TIFF_SHORT, FIELD_COLORMAP,
159 TRUE, FALSE, "ColorMap" },
160 { TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, FIELD_HALFTONEHINTS,
161 TRUE, FALSE, "HalftoneHints" },
162 { TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
163 FALSE, FALSE, "TileWidth" },
164 { TIFFTAG_TILEWIDTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
165 FALSE, FALSE, "TileWidth" },
166 { TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
167 FALSE, FALSE, "TileLength" },
168 { TIFFTAG_TILELENGTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
169 FALSE, FALSE, "TileLength" },
170 { TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG, FIELD_STRIPOFFSETS,
171 FALSE, FALSE, "TileOffsets" },
172 { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
173 FALSE, FALSE, "TileByteCounts" },
174 { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
175 FALSE, FALSE, "TileByteCounts" },
176 { TIFFTAG_SUBIFD, -1,-1, TIFF_IFD, FIELD_SUBIFD,
177 TRUE, TRUE, "SubIFD" },
178 { TIFFTAG_SUBIFD, -1,-1, TIFF_LONG, FIELD_SUBIFD,
179 TRUE, TRUE, "SubIFD" },
180 { TIFFTAG_INKSET, 1, 1, TIFF_SHORT, FIELD_INKSET,
181 FALSE, FALSE, "InkSet" },
182 { TIFFTAG_INKNAMES, -1,-1, TIFF_ASCII, FIELD_INKNAMES,
183 TRUE, TRUE, "InkNames" },
184 { TIFFTAG_NUMBEROFINKS, 1, 1, TIFF_SHORT, FIELD_NUMBEROFINKS,
185 TRUE, FALSE, "NumberOfInks" },
186 { TIFFTAG_DOTRANGE, 2, 2, TIFF_SHORT, FIELD_DOTRANGE,
187 FALSE, FALSE, "DotRange" },
188 { TIFFTAG_DOTRANGE, 2, 2, TIFF_BYTE, FIELD_DOTRANGE,
189 FALSE, FALSE, "DotRange" },
190 { TIFFTAG_TARGETPRINTER, -1,-1, TIFF_ASCII, FIELD_TARGETPRINTER,
191 TRUE, FALSE, "TargetPrinter" },
192 { TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_SHORT, FIELD_EXTRASAMPLES,
193 FALSE, TRUE, "ExtraSamples" },
194 /* XXX for bogus Adobe Photoshop v2.5 files */
195 { TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_BYTE, FIELD_EXTRASAMPLES,
196 FALSE, TRUE, "ExtraSamples" },
197 { TIFFTAG_SAMPLEFORMAT, -1,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT,
198 FALSE, FALSE, "SampleFormat" },
199 { TIFFTAG_SMINSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMINSAMPLEVALUE,
200 TRUE, FALSE, "SMinSampleValue" },
201 { TIFFTAG_SMAXSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMAXSAMPLEVALUE,
202 TRUE, FALSE, "SMaxSampleValue" },
203 { TIFFTAG_YCBCRCOEFFICIENTS, 3, 3, TIFF_RATIONAL, FIELD_YCBCRCOEFFICIENTS,
204 FALSE, FALSE, "YCbCrCoefficients" },
205 { TIFFTAG_YCBCRSUBSAMPLING, 2, 2, TIFF_SHORT, FIELD_YCBCRSUBSAMPLING,
206 FALSE, FALSE, "YCbCrSubsampling" },
207 { TIFFTAG_YCBCRPOSITIONING, 1, 1, TIFF_SHORT, FIELD_YCBCRPOSITIONING,
208 FALSE, FALSE, "YCbCrPositioning" },
209 { TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_RATIONAL, FIELD_REFBLACKWHITE,
210 TRUE, FALSE, "ReferenceBlackWhite" },
211 /* XXX temporarily accept LONG for backwards compatibility */
212 { TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_LONG, FIELD_REFBLACKWHITE,
213 TRUE, FALSE, "ReferenceBlackWhite" },
214 { TIFFTAG_XMLPACKET, -1,-3, TIFF_BYTE, FIELD_XMLPACKET,
215 FALSE, TRUE, "XMLPacket" },
217 { TIFFTAG_MATTEING, 1, 1, TIFF_SHORT, FIELD_EXTRASAMPLES,
218 FALSE, FALSE, "Matteing" },
219 { TIFFTAG_DATATYPE, -2,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT,
220 FALSE, FALSE, "DataType" },
221 { TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_LONG, FIELD_IMAGEDEPTH,
222 FALSE, FALSE, "ImageDepth" },
223 { TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDEPTH,
224 FALSE, FALSE, "ImageDepth" },
225 { TIFFTAG_TILEDEPTH, 1, 1, TIFF_LONG, FIELD_TILEDEPTH,
226 FALSE, FALSE, "TileDepth" },
227 { TIFFTAG_TILEDEPTH, 1, 1, TIFF_SHORT, FIELD_TILEDEPTH,
228 FALSE, FALSE, "TileDepth" },
230 /* begin Pixar tags */
231 { TIFFTAG_PIXAR_IMAGEFULLWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEFULLWIDTH,
232 TRUE, FALSE, "ImageFullWidth" },
233 { TIFFTAG_PIXAR_IMAGEFULLLENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEFULLLENGTH,
234 TRUE, FALSE, "ImageFullLength" },
235 { TIFFTAG_PIXAR_TEXTUREFORMAT, -1,-1, TIFF_ASCII, FIELD_TEXTUREFORMAT,
236 TRUE, FALSE, "TextureFormat" },
237 { TIFFTAG_PIXAR_WRAPMODES, -1,-1, TIFF_ASCII, FIELD_WRAPMODES,
238 TRUE, FALSE, "TextureWrapModes" },
239 { TIFFTAG_PIXAR_FOVCOT, 1, 1, TIFF_FLOAT, FIELD_FOVCOT,
240 TRUE, FALSE, "FieldOfViewCotan" },
241 { TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN, 16,16, TIFF_FLOAT,
242 FIELD_MATRIX_WORLDTOSCREEN, TRUE, FALSE, "MatrixWorldToScreen" },
243 { TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA, 16,16, TIFF_FLOAT,
244 FIELD_MATRIX_WORLDTOCAMERA, TRUE, FALSE, "MatrixWorldToCamera" },
245 { TIFFTAG_COPYRIGHT, -1,-1, TIFF_ASCII, FIELD_COPYRIGHT,
246 TRUE, FALSE, "Copyright" },
248 { TIFFTAG_RICHTIFFIPTC, -1,-3, TIFF_LONG, FIELD_RICHTIFFIPTC,
249 FALSE, TRUE, "RichTIFFIPTC" },
250 { TIFFTAG_PHOTOSHOP, -1,-3, TIFF_BYTE, FIELD_PHOTOSHOP,
251 FALSE, TRUE, "Photoshop" },
252 { TIFFTAG_ICCPROFILE, -1,-3, TIFF_UNDEFINED, FIELD_ICCPROFILE,
253 FALSE, TRUE, "ICC Profile" },
254 { TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, FIELD_STONITS,
255 FALSE, FALSE, "StoNits" },
257 #define N(a) (sizeof (a) / sizeof (a[0]))
260 _TIFFSetupFieldInfo(TIFF* tif)
262 if (tif->tif_fieldinfo) {
265 for (i = 0; i < tif->tif_nfields; i++)
267 TIFFFieldInfo *fld = tif->tif_fieldinfo[i];
268 if (fld->field_bit == FIELD_CUSTOM &&
269 strncmp("Tag ", fld->field_name, 4) == 0)
271 _TIFFfree(fld->field_name);
276 _TIFFfree(tif->tif_fieldinfo);
277 tif->tif_nfields = 0;
279 _TIFFMergeFieldInfo(tif, tiffFieldInfo, N(tiffFieldInfo));
283 tagCompare(const void* a, const void* b)
285 const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a;
286 const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b;
287 /* NB: be careful of return values for 16-bit platforms */
288 if (ta->field_tag != tb->field_tag)
289 return (ta->field_tag < tb->field_tag ? -1 : 1);
291 return ((int)tb->field_type - (int)ta->field_type);
295 tagNameCompare(const void* a, const void* b)
297 const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a;
298 const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b;
300 return strcmp(ta->field_name, tb->field_name);
304 _TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n)
309 tif->tif_foundfield = NULL;
311 if (tif->tif_nfields > 0) {
312 tif->tif_fieldinfo = (TIFFFieldInfo**)
313 _TIFFrealloc(tif->tif_fieldinfo,
314 (tif->tif_nfields+n) * sizeof (TIFFFieldInfo*));
316 tif->tif_fieldinfo = (TIFFFieldInfo**)
317 _TIFFmalloc(n * sizeof (TIFFFieldInfo*));
319 assert(tif->tif_fieldinfo != NULL);
320 tp = &tif->tif_fieldinfo[tif->tif_nfields];
321 for (i = 0; i < n; i++)
322 tp[i] = (TIFFFieldInfo*) &info[i]; /* XXX */
324 /* Sort the field info by tag number */
325 qsort(tif->tif_fieldinfo, (size_t) (tif->tif_nfields += n),
326 sizeof (TIFFFieldInfo*), tagCompare);
330 _TIFFPrintFieldInfo(TIFF* tif, FILE* fd)
334 fprintf(fd, "%s: \n", tif->tif_name);
335 for (i = 0; i < tif->tif_nfields; i++) {
336 const TIFFFieldInfo* fip = tif->tif_fieldinfo[i];
337 fprintf(fd, "field[%2d] %5lu, %2d, %2d, %d, %2d, %5s, %5s, %s\n"
339 , (unsigned long) fip->field_tag
340 , fip->field_readcount, fip->field_writecount
343 , fip->field_oktochange ? "TRUE" : "FALSE"
344 , fip->field_passcount ? "TRUE" : "FALSE"
351 * Return size of TIFFDataType in bytes
354 TIFFDataWidth(TIFFDataType type)
358 case 0: /* nothing */
359 case 1: /* TIFF_BYTE */
360 case 2: /* TIFF_ASCII */
361 case 6: /* TIFF_SBYTE */
362 case 7: /* TIFF_UNDEFINED */
364 case 3: /* TIFF_SHORT */
365 case 8: /* TIFF_SSHORT */
367 case 4: /* TIFF_LONG */
368 case 9: /* TIFF_SLONG */
369 case 11: /* TIFF_FLOAT */
370 case 13: /* TIFF_IFD */
372 case 5: /* TIFF_RATIONAL */
373 case 10: /* TIFF_SRATIONAL */
374 case 12: /* TIFF_DOUBLE */
377 return 0; /* will return 0 for unknown types */
382 * Return nearest TIFFDataType to the sample type of an image.
385 _TIFFSampleToTagType(TIFF* tif)
387 uint32 bps = TIFFhowmany8(tif->tif_dir.td_bitspersample);
389 switch (tif->tif_dir.td_sampleformat) {
390 case SAMPLEFORMAT_IEEEFP:
391 return (bps == 4 ? TIFF_FLOAT : TIFF_DOUBLE);
392 case SAMPLEFORMAT_INT:
393 return (bps <= 1 ? TIFF_SBYTE :
394 bps <= 2 ? TIFF_SSHORT : TIFF_SLONG);
395 case SAMPLEFORMAT_UINT:
396 return (bps <= 1 ? TIFF_BYTE :
397 bps <= 2 ? TIFF_SHORT : TIFF_LONG);
398 case SAMPLEFORMAT_VOID:
399 return (TIFF_UNDEFINED);
402 return (TIFF_UNDEFINED);
406 _TIFFFindFieldInfo(TIFF* tif, ttag_t tag, TIFFDataType dt)
410 if (tif->tif_foundfield && tif->tif_foundfield->field_tag == tag &&
411 (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type))
412 return (tif->tif_foundfield);
413 /* NB: use sorted search (e.g. binary search) */
415 TIFFFieldInfo key = {0, 0, 0, 0, 0, 0, 0, 0};
418 return((const TIFFFieldInfo *) bsearch(&key,
421 sizeof(TIFFFieldInfo),
423 } else for (i = 0, n = tif->tif_nfields; i < n; i++) {
424 const TIFFFieldInfo* fip = tif->tif_fieldinfo[i];
425 if (fip->field_tag == tag &&
426 (dt == TIFF_ANY || fip->field_type == dt))
427 return (tif->tif_foundfield = fip);
429 return ((const TIFFFieldInfo *)0);
433 _TIFFFindFieldInfoByName(TIFF* tif, const char *field_name, TIFFDataType dt)
437 if (tif->tif_foundfield
438 && streq(tif->tif_foundfield->field_name, field_name)
439 && (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type))
440 return (tif->tif_foundfield);
441 /* NB: use sorted search (e.g. binary search) */
443 TIFFFieldInfo key = {0, 0, 0, 0, 0, 0, 0, 0};
444 key.field_name = (char *)field_name;
446 return((const TIFFFieldInfo *) bsearch(&key,
449 sizeof(TIFFFieldInfo),
451 } else for (i = 0, n = tif->tif_nfields; i < n; i++) {
452 const TIFFFieldInfo* fip = tif->tif_fieldinfo[i];
453 if (streq(fip->field_name, field_name) &&
454 (dt == TIFF_ANY || fip->field_type == dt))
455 return (tif->tif_foundfield = fip);
457 return ((const TIFFFieldInfo *)0);
461 _TIFFFieldWithTag(TIFF* tif, ttag_t tag)
463 const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY);
465 TIFFError("TIFFFieldWithTag",
466 "Internal error, unknown tag 0x%x",
475 _TIFFFieldWithName(TIFF* tif, const char *field_name)
477 const TIFFFieldInfo* fip =
478 _TIFFFindFieldInfoByName(tif, field_name, TIFF_ANY);
480 TIFFError("TIFFFieldWithName",
481 "Internal error, unknown tag %s", field_name);
489 _TIFFFindOrRegisterFieldInfo( TIFF *tif, ttag_t tag, TIFFDataType dt )
492 const TIFFFieldInfo *fld;
494 fld = _TIFFFindFieldInfo( tif, tag, dt );
497 fld = _TIFFCreateAnonFieldInfo( tif, tag, dt );
498 _TIFFMergeFieldInfo( tif, fld, 1 );
505 _TIFFCreateAnonFieldInfo(TIFF *tif, ttag_t tag, TIFFDataType field_type)
509 fld = (TIFFFieldInfo *) _TIFFmalloc(sizeof (TIFFFieldInfo));
512 _TIFFmemset( fld, 0, sizeof(TIFFFieldInfo) );
514 fld->field_tag = tag;
515 fld->field_readcount = TIFF_VARIABLE;
516 fld->field_writecount = TIFF_VARIABLE;
517 fld->field_type = field_type;
518 fld->field_bit = FIELD_CUSTOM;
519 fld->field_oktochange = TRUE;
520 fld->field_passcount = TRUE;
521 fld->field_name = (char *) _TIFFmalloc(32);
522 if (fld->field_name == NULL) {
527 /* note that this name is a special sign to TIFFClose() and
528 * _TIFFSetupFieldInfo() to free the field
530 sprintf(fld->field_name, "Tag %d", (int) tag);
535 /* vim: set ts=8 sts=8 sw=8 noet: */