diff options
Diffstat (limited to 'tiff/libtiff/tif_dir.h')
| -rwxr-xr-x | tiff/libtiff/tif_dir.h | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/tiff/libtiff/tif_dir.h b/tiff/libtiff/tif_dir.h new file mode 100755 index 0000000..6af5f3d --- /dev/null +++ b/tiff/libtiff/tif_dir.h @@ -0,0 +1,308 @@ +/* $Id: tif_dir.h,v 1.54 2011-02-18 20:53:05 fwarmerdam Exp $ */ + +/* + * 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_ +/* + * ``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 tdir_tag; /* see below */ + uint16 tdir_type; /* data type; see below */ + uint64 tdir_count; /* number of items; length in spec */ + union { + uint16 toff_short; + uint32 toff_long; + uint64 toff_long8; + } tdir_offset; /* either offset or the data itself if fits */ +} 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 td_imagewidth, td_imagelength, td_imagedepth; + uint32 td_tilewidth, td_tilelength, td_tiledepth; + uint32 td_subfiletype; + uint16 td_bitspersample; + uint16 td_sampleformat; + uint16 td_compression; + uint16 td_photometric; + uint16 td_threshholding; + uint16 td_fillorder; + uint16 td_orientation; + uint16 td_samplesperpixel; + uint32 td_rowsperstrip; + uint16 td_minsamplevalue, td_maxsamplevalue; + double* td_sminsamplevalue; + double* td_smaxsamplevalue; + float td_xresolution, td_yresolution; + uint16 td_resolutionunit; + uint16 td_planarconfig; + float td_xposition, td_yposition; + uint16 td_pagenumber[2]; + uint16* td_colormap[3]; + uint16 td_halftonehints[2]; + uint16 td_extrasamples; + uint16* 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 td_stripsperimage; + uint32 td_nstrips; /* size of offset & bytecount arrays */ + uint64* td_stripoffset; + uint64* td_stripbytecount; + int td_stripbytecountsorted; /* is the bytecount array sorted ascending? */ +#if defined(DEFER_STRILE_LOAD) + TIFFDirEntry td_stripoffset_entry; /* for deferred loading */ + TIFFDirEntry td_stripbytecount_entry; /* for deferred loading */ +#endif + uint16 td_nsubifd; + uint64* td_subifd; + /* YCbCr parameters */ + uint16 td_ycbcrsubsampling[2]; + uint16 td_ycbcrpositioning; + /* Colorimetry parameters */ + uint16* td_transferfunction[3]; + float* td_refblackwhite; + /* CMYK parameters */ + int td_inknameslen; + char* td_inknames; + + int td_customValueCount; + TIFFTagValue *td_customValues; +} 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 +/* 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 void _TIFFSetupFields(TIFF* tif, const TIFFFieldArray* infoarray); +extern void _TIFFPrintFieldInfo(TIFF*, FILE*); + +extern int _TIFFFillStriles(TIFF*); + +typedef enum { + tfiatImage, + tfiatExif, + tfiatOther +} TIFFFieldArrayType; + +struct _TIFFFieldArray { + TIFFFieldArrayType type; /* array type, will be used to determine if IFD is image and such */ + uint32 allocated_size; /* 0 if array is constant, other if modified by future definition extension support */ + uint32 count; /* number of elements in fields array */ + TIFFField* fields; /* actual field info */ +}; + +struct _TIFFField { + uint32 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 reserved; /* reserved for future extension */ + 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); +extern const TIFFField* _TIFFFindOrRegisterField(TIFF *, uint32, TIFFDataType); +extern TIFFField* _TIFFCreateAnonField(TIFF *, uint32, TIFFDataType); + +#if defined(__cplusplus) +} +#endif +#endif /* _TIFFDIR_ */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ |