* ``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
+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, 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;
- tstrip_t td_stripsperimage;
- tstrip_t td_nstrips; /* size of offset & bytecount arrays */
- uint32* td_stripoffset;
- uint32* td_stripbytecount;
- int td_stripbytecountsorted; /* is the bytecount array sorted ascending? */
- uint16 td_nsubifd;
- uint32* td_subifd;
+ 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;
+ uint16 td_ycbcrsubsampling[2];
+ uint16 td_ycbcrpositioning;
/* Colorimetry parameters */
- uint16* td_transferfunction[3];
+ uint16* td_transferfunction[3];
+ float* td_refblackwhite;
/* CMYK parameters */
- int td_inknameslen;
- char* td_inknames;
+ 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 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
+ * 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
+#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_TRANSFERFUNCTION 44
-#define FIELD_INKNAMES 46
-#define FIELD_SUBIFD 49
-/* FIELD_CUSTOM (see tiffio.h) 65 */
+#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 */
+#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.
+ * 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 TIFFExtractData(tif, type, v) \
- ((uint32) ((tif)->tif_header.tiff_magic == TIFF_BIGENDIAN ? \
- ((v) >> (tif)->tif_typeshift[type]) & (tif)->tif_typemask[type] : \
- (v) & (tif)->tif_typemask[type]))
-#define TIFFInsertData(tif, type, v) \
- ((uint32) ((tif)->tif_header.tiff_magic == TIFF_BIGENDIAN ? \
- ((v) & (tif)->tif_typemask[type]) << (tif)->tif_typeshift[type] : \
- (v) & (tif)->tif_typemask[type]))
+#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 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))
+#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 TIFFFieldInfo *_TIFFGetFieldInfo(size_t *);
-extern const TIFFFieldInfo *_TIFFGetExifFieldInfo(size_t *);
-extern void _TIFFSetupFieldInfo(TIFF*, const TIFFFieldInfo[], size_t);
-extern void _TIFFPrintFieldInfo(TIFF*, FILE*);
-extern TIFFDataType _TIFFSampleToTagType(TIFF*);
-extern const TIFFFieldInfo* _TIFFFindOrRegisterFieldInfo( TIFF *tif,
- ttag_t tag,
- TIFFDataType dt );
-extern TIFFFieldInfo* _TIFFCreateAnonFieldInfo( TIFF *tif, ttag_t tag,
- TIFFDataType dt );
-
-#define _TIFFMergeFieldInfo TIFFMergeFieldInfo
-#define _TIFFFindFieldInfo TIFFFindFieldInfo
-#define _TIFFFindFieldInfoByName TIFFFindFieldInfoByName
-#define _TIFFFieldWithTag TIFFFieldWithTag
-#define _TIFFFieldWithName TIFFFieldWithName
+
+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 /* _TIFFDIR_ */
/* vim: set ts=8 sts=8 sw=8 noet: */
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 8
+ * fill-column: 78
+ * End:
+ */
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