EVOLUTION-MANAGER

Edit File: tif_dir.h

/* $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: */