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| 1 /* $Id: tif_dir.h,v 1.54 2011-02-18 20:53:05 fwarmerdam 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 _TIFFDIR_ | |
| 28 #define _TIFFDIR_ | |
| 29 /* | |
| 30 * ``Library-private'' Directory-related Definitions. | |
| 31 */ | |
| 32 | |
| 33 typedef struct { | |
| 34 const TIFFField *info; | |
| 35 int count; | |
| 36 void *value; | |
| 37 } TIFFTagValue; | |
| 38 | |
| 39 /* | |
| 40 * TIFF Image File Directories are comprised of a table of field | |
| 41 * descriptors of the form shown below. The table is sorted in | |
| 42 * ascending order by tag. The values associated with each entry are | |
| 43 * disjoint and may appear anywhere in the file (so long as they are | |
| 44 * placed on a word boundary). | |
| 45 * | |
| 46 * If the value is 4 bytes or less, in ClassicTIFF, or 8 bytes or less in | |
| 47 * BigTIFF, then it is placed in the offset field to save space. If so, | |
| 48 * it is left-justified in the offset field. | |
| 49 */ | |
| 50 typedef struct { | |
| 51 uint16 tdir_tag; /* see below */ | |
| 52 uint16 tdir_type; /* data type; see below */ | |
| 53 uint64 tdir_count; /* number of items; length in spec */ | |
| 54 union { | |
| 55 uint16 toff_short; | |
| 56 uint32 toff_long; | |
| 57 uint64 toff_long8; | |
| 58 } tdir_offset; /* either offset or the data itself if fits */ | |
| 59 } TIFFDirEntry; | |
| 60 | |
| 61 /* | |
| 62 * Internal format of a TIFF directory entry. | |
| 63 */ | |
| 64 typedef struct { | |
| 65 #define FIELD_SETLONGS 4 | |
| 66 /* bit vector of fields that are set */ | |
| 67 unsigned long td_fieldsset[FIELD_SETLONGS]; | |
| 68 | |
| 69 uint32 td_imagewidth, td_imagelength, td_imagedepth; | |
| 70 uint32 td_tilewidth, td_tilelength, td_tiledepth; | |
| 71 uint32 td_subfiletype; | |
| 72 uint16 td_bitspersample; | |
| 73 uint16 td_sampleformat; | |
| 74 uint16 td_compression; | |
| 75 uint16 td_photometric; | |
| 76 uint16 td_threshholding; | |
| 77 uint16 td_fillorder; | |
| 78 uint16 td_orientation; | |
| 79 uint16 td_samplesperpixel; | |
| 80 uint32 td_rowsperstrip; | |
| 81 uint16 td_minsamplevalue, td_maxsamplevalue; | |
| 82 double* td_sminsamplevalue; | |
| 83 double* td_smaxsamplevalue; | |
| 84 float td_xresolution, td_yresolution; | |
| 85 uint16 td_resolutionunit; | |
| 86 uint16 td_planarconfig; | |
| 87 float td_xposition, td_yposition; | |
| 88 uint16 td_pagenumber[2]; | |
| 89 uint16* td_colormap[3]; | |
| 90 uint16 td_halftonehints[2]; | |
| 91 uint16 td_extrasamples; | |
| 92 uint16* td_sampleinfo; | |
| 93 /* even though the name is misleading, td_stripsperimage is the number | |
| 94 * of striles (=strips or tiles) per plane, and td_nstrips the total | |
| 95 * number of striles */ | |
| 96 uint32 td_stripsperimage; | |
| 97 uint32 td_nstrips; /* size of offset & bytecount arrays */ | |
| 98 uint64* td_stripoffset; | |
| 99 uint64* td_stripbytecount; | |
| 100 int td_stripbytecountsorted; /* is the bytecount array sorted ascend
ing? */ | |
| 101 #if defined(DEFER_STRILE_LOAD) | |
| 102 TIFFDirEntry td_stripoffset_entry; /* for deferred loading */ | |
| 103 TIFFDirEntry td_stripbytecount_entry; /* for deferred loading */ | |
| 104 #endif | |
| 105 uint16 td_nsubifd; | |
| 106 uint64* td_subifd; | |
| 107 /* YCbCr parameters */ | |
| 108 uint16 td_ycbcrsubsampling[2]; | |
| 109 uint16 td_ycbcrpositioning; | |
| 110 /* Colorimetry parameters */ | |
| 111 uint16* td_transferfunction[3]; | |
| 112 float* td_refblackwhite; | |
| 113 /* CMYK parameters */ | |
| 114 int td_inknameslen; | |
| 115 char* td_inknames; | |
| 116 | |
| 117 int td_customValueCount; | |
| 118 TIFFTagValue *td_customValues; | |
| 119 } TIFFDirectory; | |
| 120 | |
| 121 /* | |
| 122 * Field flags used to indicate fields that have been set in a directory, and | |
| 123 * to reference fields when manipulating a directory. | |
| 124 */ | |
| 125 | |
| 126 /* | |
| 127 * FIELD_IGNORE is used to signify tags that are to be processed but otherwise | |
| 128 * ignored. This permits antiquated tags to be quietly read and discarded. | |
| 129 * Note that a bit *is* allocated for ignored tags; this is understood by the | |
| 130 * directory reading logic which uses this fact to avoid special-case handling | |
| 131 */ | |
| 132 #define FIELD_IGNORE 0 | |
| 133 | |
| 134 /* multi-item fields */ | |
| 135 #define FIELD_IMAGEDIMENSIONS 1 | |
| 136 #define FIELD_TILEDIMENSIONS 2 | |
| 137 #define FIELD_RESOLUTION 3 | |
| 138 #define FIELD_POSITION 4 | |
| 139 | |
| 140 /* single-item fields */ | |
| 141 #define FIELD_SUBFILETYPE 5 | |
| 142 #define FIELD_BITSPERSAMPLE 6 | |
| 143 #define FIELD_COMPRESSION 7 | |
| 144 #define FIELD_PHOTOMETRIC 8 | |
| 145 #define FIELD_THRESHHOLDING 9 | |
| 146 #define FIELD_FILLORDER 10 | |
| 147 #define FIELD_ORIENTATION 15 | |
| 148 #define FIELD_SAMPLESPERPIXEL 16 | |
| 149 #define FIELD_ROWSPERSTRIP 17 | |
| 150 #define FIELD_MINSAMPLEVALUE 18 | |
| 151 #define FIELD_MAXSAMPLEVALUE 19 | |
| 152 #define FIELD_PLANARCONFIG 20 | |
| 153 #define FIELD_RESOLUTIONUNIT 22 | |
| 154 #define FIELD_PAGENUMBER 23 | |
| 155 #define FIELD_STRIPBYTECOUNTS 24 | |
| 156 #define FIELD_STRIPOFFSETS 25 | |
| 157 #define FIELD_COLORMAP 26 | |
| 158 #define FIELD_EXTRASAMPLES 31 | |
| 159 #define FIELD_SAMPLEFORMAT 32 | |
| 160 #define FIELD_SMINSAMPLEVALUE 33 | |
| 161 #define FIELD_SMAXSAMPLEVALUE 34 | |
| 162 #define FIELD_IMAGEDEPTH 35 | |
| 163 #define FIELD_TILEDEPTH 36 | |
| 164 #define FIELD_HALFTONEHINTS 37 | |
| 165 #define FIELD_YCBCRSUBSAMPLING 39 | |
| 166 #define FIELD_YCBCRPOSITIONING 40 | |
| 167 #define FIELD_REFBLACKWHITE 41 | |
| 168 #define FIELD_TRANSFERFUNCTION 44 | |
| 169 #define FIELD_INKNAMES 46 | |
| 170 #define FIELD_SUBIFD 49 | |
| 171 /* FIELD_CUSTOM (see tiffio.h) 65 */ | |
| 172 /* end of support for well-known tags; codec-private tags follow */ | |
| 173 #define FIELD_CODEC 66 /* base of codec-private tags */ | |
| 174 | |
| 175 | |
| 176 /* | |
| 177 * Pseudo-tags don't normally need field bits since they are not written to an | |
| 178 * output file (by definition). The library also has express logic to always | |
| 179 * query a codec for a pseudo-tag so allocating a field bit for one is a | |
| 180 * waste. If codec wants to promote the notion of a pseudo-tag being ``set'' | |
| 181 * or ``unset'' then it can do using internal state flags without polluting | |
| 182 * the field bit space defined for real tags. | |
| 183 */ | |
| 184 #define FIELD_PSEUDO 0 | |
| 185 | |
| 186 #define FIELD_LAST (32*FIELD_SETLONGS-1) | |
| 187 | |
| 188 #define BITn(n) (((unsigned long)1L)<<((n)&0x1f)) | |
| 189 #define BITFIELDn(tif, n) ((tif)->tif_dir.td_fieldsset[(n)/32]) | |
| 190 #define TIFFFieldSet(tif, field) (BITFIELDn(tif, field) & BITn(field)) | |
| 191 #define TIFFSetFieldBit(tif, field) (BITFIELDn(tif, field) |= BITn(field)) | |
| 192 #define TIFFClrFieldBit(tif, field) (BITFIELDn(tif, field) &= ~BITn(field)) | |
| 193 | |
| 194 #define FieldSet(fields, f) (fields[(f)/32] & BITn(f)) | |
| 195 #define ResetFieldBit(fields, f) (fields[(f)/32] &= ~BITn(f)) | |
| 196 | |
| 197 typedef enum { | |
| 198 TIFF_SETGET_UNDEFINED = 0, | |
| 199 TIFF_SETGET_ASCII = 1, | |
| 200 TIFF_SETGET_UINT8 = 2, | |
| 201 TIFF_SETGET_SINT8 = 3, | |
| 202 TIFF_SETGET_UINT16 = 4, | |
| 203 TIFF_SETGET_SINT16 = 5, | |
| 204 TIFF_SETGET_UINT32 = 6, | |
| 205 TIFF_SETGET_SINT32 = 7, | |
| 206 TIFF_SETGET_UINT64 = 8, | |
| 207 TIFF_SETGET_SINT64 = 9, | |
| 208 TIFF_SETGET_FLOAT = 10, | |
| 209 TIFF_SETGET_DOUBLE = 11, | |
| 210 TIFF_SETGET_IFD8 = 12, | |
| 211 TIFF_SETGET_INT = 13, | |
| 212 TIFF_SETGET_UINT16_PAIR = 14, | |
| 213 TIFF_SETGET_C0_ASCII = 15, | |
| 214 TIFF_SETGET_C0_UINT8 = 16, | |
| 215 TIFF_SETGET_C0_SINT8 = 17, | |
| 216 TIFF_SETGET_C0_UINT16 = 18, | |
| 217 TIFF_SETGET_C0_SINT16 = 19, | |
| 218 TIFF_SETGET_C0_UINT32 = 20, | |
| 219 TIFF_SETGET_C0_SINT32 = 21, | |
| 220 TIFF_SETGET_C0_UINT64 = 22, | |
| 221 TIFF_SETGET_C0_SINT64 = 23, | |
| 222 TIFF_SETGET_C0_FLOAT = 24, | |
| 223 TIFF_SETGET_C0_DOUBLE = 25, | |
| 224 TIFF_SETGET_C0_IFD8 = 26, | |
| 225 TIFF_SETGET_C16_ASCII = 27, | |
| 226 TIFF_SETGET_C16_UINT8 = 28, | |
| 227 TIFF_SETGET_C16_SINT8 = 29, | |
| 228 TIFF_SETGET_C16_UINT16 = 30, | |
| 229 TIFF_SETGET_C16_SINT16 = 31, | |
| 230 TIFF_SETGET_C16_UINT32 = 32, | |
| 231 TIFF_SETGET_C16_SINT32 = 33, | |
| 232 TIFF_SETGET_C16_UINT64 = 34, | |
| 233 TIFF_SETGET_C16_SINT64 = 35, | |
| 234 TIFF_SETGET_C16_FLOAT = 36, | |
| 235 TIFF_SETGET_C16_DOUBLE = 37, | |
| 236 TIFF_SETGET_C16_IFD8 = 38, | |
| 237 TIFF_SETGET_C32_ASCII = 39, | |
| 238 TIFF_SETGET_C32_UINT8 = 40, | |
| 239 TIFF_SETGET_C32_SINT8 = 41, | |
| 240 TIFF_SETGET_C32_UINT16 = 42, | |
| 241 TIFF_SETGET_C32_SINT16 = 43, | |
| 242 TIFF_SETGET_C32_UINT32 = 44, | |
| 243 TIFF_SETGET_C32_SINT32 = 45, | |
| 244 TIFF_SETGET_C32_UINT64 = 46, | |
| 245 TIFF_SETGET_C32_SINT64 = 47, | |
| 246 TIFF_SETGET_C32_FLOAT = 48, | |
| 247 TIFF_SETGET_C32_DOUBLE = 49, | |
| 248 TIFF_SETGET_C32_IFD8 = 50, | |
| 249 TIFF_SETGET_OTHER = 51 | |
| 250 } TIFFSetGetFieldType; | |
| 251 | |
| 252 #if defined(__cplusplus) | |
| 253 extern "C" { | |
| 254 #endif | |
| 255 | |
| 256 extern const TIFFFieldArray* _TIFFGetFields(void); | |
| 257 extern const TIFFFieldArray* _TIFFGetExifFields(void); | |
| 258 extern void _TIFFSetupFields(TIFF* tif, const TIFFFieldArray* infoarray); | |
| 259 extern void _TIFFPrintFieldInfo(TIFF*, FILE*); | |
| 260 | |
| 261 extern int _TIFFFillStriles(TIFF*); | |
| 262 | |
| 263 typedef enum { | |
| 264 tfiatImage, | |
| 265 tfiatExif, | |
| 266 tfiatOther | |
| 267 } TIFFFieldArrayType; | |
| 268 | |
| 269 struct _TIFFFieldArray { | |
| 270 TIFFFieldArrayType type; /* array type, will be used to determine if
IFD is image and such */ | |
| 271 uint32 allocated_size; /* 0 if array is constant, other if modified
by future definition extension support */ | |
| 272 uint32 count; /* number of elements in fields array */ | |
| 273 TIFFField* fields; /* actual field info */ | |
| 274 }; | |
| 275 | |
| 276 struct _TIFFField { | |
| 277 uint32 field_tag; /* field's tag */ | |
| 278 short field_readcount; /* read count/TIFF_VARIABLE/TIFF
_SPP */ | |
| 279 short field_writecount; /* write count/TIFF_VARIABLE */ | |
| 280 TIFFDataType field_type; /* type of associated data */ | |
| 281 uint32 reserved; /* reserved for future extension
*/ | |
| 282 TIFFSetGetFieldType set_field_type; /* type to be passed to TIFFSetF
ield */ | |
| 283 TIFFSetGetFieldType get_field_type; /* type to be passed to TIFFGetF
ield */ | |
| 284 unsigned short field_bit; /* bit in fieldsset bit vector *
/ | |
| 285 unsigned char field_oktochange; /* if true, can change while wri
ting */ | |
| 286 unsigned char field_passcount; /* if true, pass dir count on se
t */ | |
| 287 char* field_name; /* ASCII name */ | |
| 288 TIFFFieldArray* field_subfields; /* if field points to child ifds
, child ifd field definition array */ | |
| 289 }; | |
| 290 | |
| 291 extern int _TIFFMergeFields(TIFF*, const TIFFField[], uint32); | |
| 292 extern const TIFFField* _TIFFFindOrRegisterField(TIFF *, uint32, TIFFDataType); | |
| 293 extern TIFFField* _TIFFCreateAnonField(TIFF *, uint32, TIFFDataType); | |
| 294 | |
| 295 #if defined(__cplusplus) | |
| 296 } | |
| 297 #endif | |
| 298 #endif /* _TIFFDIR_ */ | |
| 299 | |
| 300 /* vim: set ts=8 sts=8 sw=8 noet: */ | |
| 301 | |
| 302 /* | |
| 303 * Local Variables: | |
| 304 * mode: c | |
| 305 * c-basic-offset: 8 | |
| 306 * fill-column: 78 | |
| 307 * End: | |
| 308 */ | |
| OLD | NEW |
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Chromium Code Reviews
Issue 1563103002:
XFA: Upgrade to libtiff 4.0.6. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@xfa