| /* |
| * Copyright (c) 1988-1997 Sam Leffler |
| * Copyright (c) 1991-1997 Silicon Graphics, Inc. |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and |
| * its documentation for any purpose is hereby granted without fee, provided |
| * that (i) the above copyright notices and this permission notice appear in |
| * all copies of the software and related documentation, and (ii) the names of |
| * Sam Leffler and Silicon Graphics may not be used in any advertising or |
| * publicity relating to the software without the specific, prior written |
| * permission of Sam Leffler and Silicon Graphics. |
| * |
| * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
| * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
| * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
| * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
| * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| * OF THIS SOFTWARE. |
| */ |
| |
| #ifndef _TIFFDIR_ |
| #define _TIFFDIR_ |
| |
| #include "tiff.h" |
| #include "tiffio.h" |
| |
| /* |
| * ``Library-private'' Directory-related Definitions. |
| */ |
| |
| typedef struct |
| { |
| const TIFFField *info; |
| int count; |
| void *value; |
| } TIFFTagValue; |
| |
| /* |
| * TIFF Image File Directories are comprised of a table of field |
| * descriptors of the form shown below. The table is sorted in |
| * ascending order by tag. The values associated with each entry are |
| * disjoint and may appear anywhere in the file (so long as they are |
| * placed on a word boundary). |
| * |
| * If the value is 4 bytes or less, in ClassicTIFF, or 8 bytes or less in |
| * BigTIFF, then it is placed in the offset field to save space. If so, |
| * it is left-justified in the offset field. |
| */ |
| typedef struct |
| { |
| uint16_t tdir_tag; /* see below */ |
| uint16_t tdir_type; /* data type; see below */ |
| uint64_t tdir_count; /* number of items; length in spec */ |
| union |
| { |
| uint16_t toff_short; |
| uint32_t toff_long; |
| uint64_t toff_long8; |
| } tdir_offset; /* either offset or the data itself if fits */ |
| uint8_t tdir_ignore; /* flag status to ignore tag when parsing tags in |
| tif_dirread.c */ |
| } TIFFDirEntry; |
| |
| /* |
| * Internal format of a TIFF directory entry. |
| */ |
| typedef struct |
| { |
| #define FIELD_SETLONGS 4 |
| /* bit vector of fields that are set */ |
| unsigned long td_fieldsset[FIELD_SETLONGS]; |
| |
| uint32_t td_imagewidth, td_imagelength, td_imagedepth; |
| uint32_t td_tilewidth, td_tilelength, td_tiledepth; |
| uint32_t td_subfiletype; |
| uint16_t td_bitspersample; |
| uint16_t td_sampleformat; |
| uint16_t td_compression; |
| uint16_t td_photometric; |
| uint16_t td_threshholding; |
| uint16_t td_fillorder; |
| uint16_t td_orientation; |
| uint16_t td_samplesperpixel; |
| uint32_t td_rowsperstrip; |
| uint16_t td_minsamplevalue, td_maxsamplevalue; |
| double *td_sminsamplevalue; |
| double *td_smaxsamplevalue; |
| float td_xresolution, td_yresolution; |
| uint16_t td_resolutionunit; |
| uint16_t td_planarconfig; |
| float td_xposition, td_yposition; |
| uint16_t td_pagenumber[2]; |
| uint16_t *td_colormap[3]; |
| uint16_t td_halftonehints[2]; |
| uint16_t td_extrasamples; |
| uint16_t *td_sampleinfo; |
| /* even though the name is misleading, td_stripsperimage is the number |
| * of striles (=strips or tiles) per plane, and td_nstrips the total |
| * number of striles */ |
| uint32_t td_stripsperimage; |
| uint32_t td_nstrips; /* size of offset & bytecount arrays */ |
| uint64_t |
| *td_stripoffset_p; /* should be accessed with TIFFGetStrileOffset */ |
| uint64_t *td_stripbytecount_p; /* should be accessed with |
| TIFFGetStrileByteCount */ |
| uint32_t |
| td_stripoffsetbyteallocsize; /* number of elements currently allocated |
| for td_stripoffset/td_stripbytecount. |
| Only used if TIFF_LAZYSTRILELOAD is set |
| */ |
| #ifdef STRIPBYTECOUNTSORTED_UNUSED |
| int td_stripbytecountsorted; /* is the bytecount array sorted ascending? */ |
| #endif |
| TIFFDirEntry td_stripoffset_entry; /* for deferred loading */ |
| TIFFDirEntry td_stripbytecount_entry; /* for deferred loading */ |
| uint16_t td_nsubifd; |
| uint64_t *td_subifd; |
| /* YCbCr parameters */ |
| uint16_t td_ycbcrsubsampling[2]; |
| uint16_t td_ycbcrpositioning; |
| /* Colorimetry parameters */ |
| uint16_t *td_transferfunction[3]; |
| float *td_refblackwhite; |
| /* CMYK parameters */ |
| int td_inknameslen; |
| char *td_inknames; |
| uint16_t td_numberofinks; /* number of inks in InkNames string */ |
| |
| int td_customValueCount; |
| TIFFTagValue *td_customValues; |
| |
| unsigned char |
| td_deferstrilearraywriting; /* see TIFFDeferStrileArrayWriting() */ |
| } TIFFDirectory; |
| |
| /* |
| * Field flags used to indicate fields that have been set in a directory, and |
| * to reference fields when manipulating a directory. |
| */ |
| |
| /* |
| * FIELD_IGNORE is used to signify tags that are to be processed but otherwise |
| * ignored. This permits antiquated tags to be quietly read and discarded. |
| * Note that a bit *is* allocated for ignored tags; this is understood by the |
| * directory reading logic which uses this fact to avoid special-case handling |
| */ |
| #define FIELD_IGNORE 0 |
| |
| /* multi-item fields */ |
| #define FIELD_IMAGEDIMENSIONS 1 |
| #define FIELD_TILEDIMENSIONS 2 |
| #define FIELD_RESOLUTION 3 |
| #define FIELD_POSITION 4 |
| |
| /* single-item fields */ |
| #define FIELD_SUBFILETYPE 5 |
| #define FIELD_BITSPERSAMPLE 6 |
| #define FIELD_COMPRESSION 7 |
| #define FIELD_PHOTOMETRIC 8 |
| #define FIELD_THRESHHOLDING 9 |
| #define FIELD_FILLORDER 10 |
| #define FIELD_ORIENTATION 15 |
| #define FIELD_SAMPLESPERPIXEL 16 |
| #define FIELD_ROWSPERSTRIP 17 |
| #define FIELD_MINSAMPLEVALUE 18 |
| #define FIELD_MAXSAMPLEVALUE 19 |
| #define FIELD_PLANARCONFIG 20 |
| #define FIELD_RESOLUTIONUNIT 22 |
| #define FIELD_PAGENUMBER 23 |
| #define FIELD_STRIPBYTECOUNTS 24 |
| #define FIELD_STRIPOFFSETS 25 |
| #define FIELD_COLORMAP 26 |
| #define FIELD_EXTRASAMPLES 31 |
| #define FIELD_SAMPLEFORMAT 32 |
| #define FIELD_SMINSAMPLEVALUE 33 |
| #define FIELD_SMAXSAMPLEVALUE 34 |
| #define FIELD_IMAGEDEPTH 35 |
| #define FIELD_TILEDEPTH 36 |
| #define FIELD_HALFTONEHINTS 37 |
| #define FIELD_YCBCRSUBSAMPLING 39 |
| #define FIELD_YCBCRPOSITIONING 40 |
| #define FIELD_REFBLACKWHITE 41 |
| #define FIELD_TRANSFERFUNCTION 44 |
| #define FIELD_INKNAMES 46 |
| #define FIELD_SUBIFD 49 |
| #define FIELD_NUMBEROFINKS 50 |
| /* FIELD_CUSTOM (see tiffio.h) 65 */ |
| /* end of support for well-known tags; codec-private tags follow */ |
| #define FIELD_CODEC 66 /* base of codec-private tags */ |
| |
| /* |
| * Pseudo-tags don't normally need field bits since they are not written to an |
| * output file (by definition). The library also has express logic to always |
| * query a codec for a pseudo-tag so allocating a field bit for one is a |
| * waste. If codec wants to promote the notion of a pseudo-tag being ``set'' |
| * or ``unset'' then it can do using internal state flags without polluting |
| * the field bit space defined for real tags. |
| */ |
| #define FIELD_PSEUDO 0 |
| |
| #define FIELD_LAST (32 * FIELD_SETLONGS - 1) |
| |
| #define BITn(n) (((unsigned long)1L) << ((n)&0x1f)) |
| #define BITFIELDn(tif, n) ((tif)->tif_dir.td_fieldsset[(n) / 32]) |
| #define TIFFFieldSet(tif, field) (BITFIELDn(tif, field) & BITn(field)) |
| #define TIFFSetFieldBit(tif, field) (BITFIELDn(tif, field) |= BITn(field)) |
| #define TIFFClrFieldBit(tif, field) (BITFIELDn(tif, field) &= ~BITn(field)) |
| |
| #define FieldSet(fields, f) (fields[(f) / 32] & BITn(f)) |
| #define ResetFieldBit(fields, f) (fields[(f) / 32] &= ~BITn(f)) |
| |
| typedef enum |
| { |
| TIFF_SETGET_UNDEFINED = 0, |
| TIFF_SETGET_ASCII = 1, |
| TIFF_SETGET_UINT8 = 2, |
| TIFF_SETGET_SINT8 = 3, |
| TIFF_SETGET_UINT16 = 4, |
| TIFF_SETGET_SINT16 = 5, |
| TIFF_SETGET_UINT32 = 6, |
| TIFF_SETGET_SINT32 = 7, |
| TIFF_SETGET_UINT64 = 8, |
| TIFF_SETGET_SINT64 = 9, |
| TIFF_SETGET_FLOAT = 10, |
| TIFF_SETGET_DOUBLE = 11, |
| TIFF_SETGET_IFD8 = 12, |
| TIFF_SETGET_INT = 13, |
| TIFF_SETGET_UINT16_PAIR = 14, |
| TIFF_SETGET_C0_ASCII = 15, |
| TIFF_SETGET_C0_UINT8 = 16, |
| TIFF_SETGET_C0_SINT8 = 17, |
| TIFF_SETGET_C0_UINT16 = 18, |
| TIFF_SETGET_C0_SINT16 = 19, |
| TIFF_SETGET_C0_UINT32 = 20, |
| TIFF_SETGET_C0_SINT32 = 21, |
| TIFF_SETGET_C0_UINT64 = 22, |
| TIFF_SETGET_C0_SINT64 = 23, |
| TIFF_SETGET_C0_FLOAT = 24, |
| TIFF_SETGET_C0_DOUBLE = 25, |
| TIFF_SETGET_C0_IFD8 = 26, |
| TIFF_SETGET_C16_ASCII = 27, |
| TIFF_SETGET_C16_UINT8 = 28, |
| TIFF_SETGET_C16_SINT8 = 29, |
| TIFF_SETGET_C16_UINT16 = 30, |
| TIFF_SETGET_C16_SINT16 = 31, |
| TIFF_SETGET_C16_UINT32 = 32, |
| TIFF_SETGET_C16_SINT32 = 33, |
| TIFF_SETGET_C16_UINT64 = 34, |
| TIFF_SETGET_C16_SINT64 = 35, |
| TIFF_SETGET_C16_FLOAT = 36, |
| TIFF_SETGET_C16_DOUBLE = 37, |
| TIFF_SETGET_C16_IFD8 = 38, |
| TIFF_SETGET_C32_ASCII = 39, |
| TIFF_SETGET_C32_UINT8 = 40, |
| TIFF_SETGET_C32_SINT8 = 41, |
| TIFF_SETGET_C32_UINT16 = 42, |
| TIFF_SETGET_C32_SINT16 = 43, |
| TIFF_SETGET_C32_UINT32 = 44, |
| TIFF_SETGET_C32_SINT32 = 45, |
| TIFF_SETGET_C32_UINT64 = 46, |
| TIFF_SETGET_C32_SINT64 = 47, |
| TIFF_SETGET_C32_FLOAT = 48, |
| TIFF_SETGET_C32_DOUBLE = 49, |
| TIFF_SETGET_C32_IFD8 = 50, |
| TIFF_SETGET_OTHER = 51 |
| } TIFFSetGetFieldType; |
| |
| #if defined(__cplusplus) |
| extern "C" |
| { |
| #endif |
| |
| extern const TIFFFieldArray *_TIFFGetFields(void); |
| extern const TIFFFieldArray *_TIFFGetExifFields(void); |
| extern const TIFFFieldArray *_TIFFGetGpsFields(void); |
| extern void _TIFFSetupFields(TIFF *tif, const TIFFFieldArray *infoarray); |
| extern void _TIFFPrintFieldInfo(TIFF *, FILE *); |
| |
| extern int _TIFFFillStriles(TIFF *); |
| |
| typedef enum |
| { |
| tfiatImage, |
| tfiatExif, |
| tfiatGps, /* EXIF-GPS fields array type */ |
| tfiatOther |
| } TIFFFieldArrayType; |
| |
| struct _TIFFFieldArray |
| { |
| TIFFFieldArrayType type; /* array type, will be used to determine if IFD |
| is image and such */ |
| uint32_t allocated_size; /* 0 if array is constant, other if modified by |
| future definition extension support */ |
| uint32_t count; /* number of elements in fields array */ |
| TIFFField *fields; /* actual field info */ |
| }; |
| |
| struct _TIFFField |
| { |
| uint32_t field_tag; /* field's tag */ |
| short field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */ |
| short field_writecount; /* write count/TIFF_VARIABLE */ |
| TIFFDataType field_type; /* type of associated data */ |
| uint32_t |
| field_anonymous; /* if true, this is a unknown / anonymous tag */ |
| TIFFSetGetFieldType |
| set_field_type; /* type to be passed to TIFFSetField */ |
| TIFFSetGetFieldType |
| get_field_type; /* type to be passed to TIFFGetField */ |
| unsigned short field_bit; /* bit in fieldsset bit vector */ |
| unsigned char field_oktochange; /* if true, can change while writing */ |
| unsigned char field_passcount; /* if true, pass dir count on set */ |
| char *field_name; /* ASCII name */ |
| TIFFFieldArray *field_subfields; /* if field points to child ifds, child |
| ifd field definition array */ |
| }; |
| |
| extern int _TIFFMergeFields(TIFF *, const TIFFField[], uint32_t); |
| extern const TIFFField *_TIFFFindOrRegisterField(TIFF *, uint32_t, |
| TIFFDataType); |
| extern TIFFField *_TIFFCreateAnonField(TIFF *, uint32_t, TIFFDataType); |
| extern int _TIFFCheckFieldIsValidForCodec(TIFF *tif, ttag_t tag); |
| extern int _TIFFCheckDirNumberAndOffset(TIFF *tif, tdir_t dirn, |
| uint64_t diroff); |
| extern int _TIFFGetDirNumberFromOffset(TIFF *tif, uint64_t diroff, |
| tdir_t *dirn); |
| |
| #if defined(__cplusplus) |
| } |
| #endif |
| #endif /* _TIFFDIR_ */ |
