/* * TIFF I/O Library Definitions. * * Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler * Copyright (c) 1991, 1992 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. * * Tag Image File Format (TIFF) * * Based on Rev 6.0 from: * Developer's Desk * Aldus Corporation * 411 First Ave. South * Suite 200 * Seattle, WA 98104 * 206-622-5500 */ #pragma lib "libtiff.a" #pragma src "/sys/src/libtiff" #define TIFF_VERSION 42 #define TIFF_BIGENDIAN 0x4d4d #define TIFF_LITTLEENDIAN 0x4949 typedef struct { unsigned short tiff_magic; /* magic number (defines byte order) */ unsigned short tiff_version; /* TIFF version number */ unsigned long tiff_diroff; /* byte offset to first directory */ } TIFFHeader; /* * 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, then it is placed * in the offset field to save space. If the value * is less than 4 bytes, it is left-justified in the * offset field. */ typedef struct { unsigned short tdir_tag; /* see below */ unsigned short tdir_type; /* data type; see below */ unsigned long tdir_count; /* number of items; length in spec */ unsigned long tdir_offset; /* byte offset to field data */ } TIFFDirEntry; /* * NB: In the comments below, * - items marked with a + are obsoleted by revision 5.0, * - items marked with a ! are introduced in revision 6.0. * - items marked with a $ are obsoleted by revision 6.0. */ /* * Tag data type information. * * Note: RATIONALs are the ratio of two 32-bit integer values. */ typedef enum { TIFF_NOTYPE = 0, /* placeholder */ TIFF_BYTE = 1, /* 8-bit unsigned integer */ TIFF_ASCII = 2, /* 8-bit bytes w/ last byte null */ TIFF_SHORT = 3, /* 16-bit unsigned integer */ TIFF_LONG = 4, /* 32-bit unsigned integer */ TIFF_RATIONAL = 5, /* 64-bit unsigned fraction */ TIFF_SBYTE = 6, /* !8-bit signed integer */ TIFF_UNDEFINED = 7, /* !8-bit untyped data */ TIFF_SSHORT = 8, /* !16-bit signed integer */ TIFF_SLONG = 9, /* !32-bit signed integer */ TIFF_SRATIONAL = 10, /* !64-bit signed fraction */ TIFF_FLOAT = 11, /* !32-bit IEEE floating point */ TIFF_DOUBLE = 12 /* !64-bit IEEE floating point */ } TIFFDataType; /* * TIFF Tag Definitions. */ #define TIFFTAG_SUBFILETYPE 254 /* subfile data descriptor */ #define FILETYPE_REDUCEDIMAGE 0x1 /* reduced resolution version */ #define FILETYPE_PAGE 0x2 /* one page of many */ #define FILETYPE_MASK 0x4 /* transparency mask */ #define TIFFTAG_OSUBFILETYPE 255 /* +kind of data in subfile */ #define OFILETYPE_IMAGE 1 /* full resolution image data */ #define OFILETYPE_REDUCEDIMAGE 2 /* reduced size image data */ #define OFILETYPE_PAGE 3 /* one page of many */ #define TIFFTAG_IMAGEWIDTH 256 /* image width in pixels */ #define TIFFTAG_IMAGELENGTH 257 /* image height in pixels */ #define TIFFTAG_BITSPERSAMPLE 258 /* bits per channel (sample) */ #define TIFFTAG_COMPRESSION 259 /* data compression technique */ #define COMPRESSION_NONE 1 /* dump mode */ #define COMPRESSION_CCITTRLE 2 /* CCITT modified Huffman RLE */ #define COMPRESSION_CCITTFAX3 3 /* CCITT Group 3 fax encoding */ #define COMPRESSION_CCITTFAX4 4 /* CCITT Group 4 fax encoding */ #define COMPRESSION_LZW 5 /* Lempel-Ziv & Welch */ #define COMPRESSION_JPEG 6 /* !JPEG compression */ #define COMPRESSION_NEXT 32766 /* NeXT 2-bit RLE */ #define COMPRESSION_CCITTRLEW 32771 /* #1 w/ word alignment */ #define COMPRESSION_PACKBITS 32773 /* Macintosh RLE */ #define COMPRESSION_THUNDERSCAN 32809 /* ThunderScan RLE */ #define TIFFTAG_PHOTOMETRIC 262 /* photometric interpretation */ #define PHOTOMETRIC_MINISWHITE 0 /* min value is white */ #define PHOTOMETRIC_MINISBLACK 1 /* min value is black */ #define PHOTOMETRIC_RGB 2 /* RGB color model */ #define PHOTOMETRIC_PALETTE 3 /* color map indexed */ #define PHOTOMETRIC_MASK 4 /* $holdout mask */ #define PHOTOMETRIC_SEPARATED 5 /* !color separations */ #define PHOTOMETRIC_YCBCR 6 /* !CCIR 601 */ #define PHOTOMETRIC_CIELAB 8 /* !1976 CIE L*a*b* */ #define TIFFTAG_THRESHHOLDING 263 /* +thresholding used on data */ #define THRESHHOLD_BILEVEL 1 /* b&w art scan */ #define THRESHHOLD_HALFTONE 2 /* or dithered scan */ #define THRESHHOLD_ERRORDIFFUSE 3 /* usually floyd-steinberg */ #define TIFFTAG_CELLWIDTH 264 /* +dithering matrix width */ #define TIFFTAG_CELLLENGTH 265 /* +dithering matrix height */ #define TIFFTAG_FILLORDER 266 /* data order within a byte */ #define FILLORDER_MSB2LSB 1 /* most significant -> least */ #define FILLORDER_LSB2MSB 2 /* least significant -> most */ #define TIFFTAG_DOCUMENTNAME 269 /* name of doc. image is from */ #define TIFFTAG_IMAGEDESCRIPTION 270 /* info about image */ #define TIFFTAG_MAKE 271 /* scanner manufacturer name */ #define TIFFTAG_MODEL 272 /* scanner model name/number */ #define TIFFTAG_STRIPOFFSETS 273 /* offsets to data strips */ #define TIFFTAG_ORIENTATION 274 /* +image orientation */ #define ORIENTATION_TOPLEFT 1 /* row 0 top, col 0 lhs */ #define ORIENTATION_TOPRIGHT 2 /* row 0 top, col 0 rhs */ #define ORIENTATION_BOTRIGHT 3 /* row 0 bottom, col 0 rhs */ #define ORIENTATION_BOTLEFT 4 /* row 0 bottom, col 0 lhs */ #define ORIENTATION_LEFTTOP 5 /* row 0 lhs, col 0 top */ #define ORIENTATION_RIGHTTOP 6 /* row 0 rhs, col 0 top */ #define ORIENTATION_RIGHTBOT 7 /* row 0 rhs, col 0 bottom */ #define ORIENTATION_LEFTBOT 8 /* row 0 lhs, col 0 bottom */ #define TIFFTAG_SAMPLESPERPIXEL 277 /* samples per pixel */ #define TIFFTAG_ROWSPERSTRIP 278 /* rows per strip of data */ #define TIFFTAG_STRIPBYTECOUNTS 279 /* bytes counts for strips */ #define TIFFTAG_MINSAMPLEVALUE 280 /* +minimum sample value */ #define TIFFTAG_MAXSAMPLEVALUE 281 /* +maximum sample value */ #define TIFFTAG_XRESOLUTION 282 /* pixels/resolution in x */ #define TIFFTAG_YRESOLUTION 283 /* pixels/resolution in y */ #define TIFFTAG_PLANARCONFIG 284 /* storage organization */ #define PLANARCONFIG_CONTIG 1 /* single image plane */ #define PLANARCONFIG_SEPARATE 2 /* separate planes of data */ #define TIFFTAG_PAGENAME 285 /* page name image is from */ #define TIFFTAG_XPOSITION 286 /* x page offset of image lhs */ #define TIFFTAG_YPOSITION 287 /* y page offset of image lhs */ #define TIFFTAG_FREEOFFSETS 288 /* +byte offset to free block */ #define TIFFTAG_FREEBYTECOUNTS 289 /* +sizes of free blocks */ #define TIFFTAG_GRAYRESPONSEUNIT 290 /* $gray scale curve accuracy */ #define GRAYRESPONSEUNIT_10S 1 /* tenths of a unit */ #define GRAYRESPONSEUNIT_100S 2 /* hundredths of a unit */ #define GRAYRESPONSEUNIT_1000S 3 /* thousandths of a unit */ #define GRAYRESPONSEUNIT_10000S 4 /* ten-thousandths of a unit */ #define GRAYRESPONSEUNIT_100000S 5 /* hundred-thousandths */ #define TIFFTAG_GRAYRESPONSECURVE 291 /* $gray scale response curve */ #define TIFFTAG_GROUP3OPTIONS 292 /* 32 flag bits */ #define GROUP3OPT_2DENCODING 0x1 /* 2-dimensional coding */ #define GROUP3OPT_UNCOMPRESSED 0x2 /* data not compressed */ #define GROUP3OPT_FILLBITS 0x4 /* fill to byte boundary */ #define TIFFTAG_GROUP4OPTIONS 293 /* 32 flag bits */ #define GROUP4OPT_UNCOMPRESSED 0x2 /* data not compressed */ #define TIFFTAG_RESOLUTIONUNIT 296 /* units of resolutions */ #define RESUNIT_NONE 1 /* no meaningful units */ #define RESUNIT_INCH 2 /* english */ #define RESUNIT_CENTIMETER 3 /* metric */ #define TIFFTAG_PAGENUMBER 297 /* page numbers of multi-page */ #define TIFFTAG_COLORRESPONSEUNIT 300 /* $color curve accuracy */ #define COLORRESPONSEUNIT_10S 1 /* tenths of a unit */ #define COLORRESPONSEUNIT_100S 2 /* hundredths of a unit */ #define COLORRESPONSEUNIT_1000S 3 /* thousandths of a unit */ #define COLORRESPONSEUNIT_10000S 4 /* ten-thousandths of a unit */ #define COLORRESPONSEUNIT_100000S 5 /* hundred-thousandths */ #define TIFFTAG_TRANSFERFUNCTION 301 /* !colorimetry info */ #define TIFFTAG_SOFTWARE 305 /* name & release */ #define TIFFTAG_DATETIME 306 /* creation date and time */ #define TIFFTAG_ARTIST 315 /* creator of image */ #define TIFFTAG_HOSTCOMPUTER 316 /* machine where created */ #define TIFFTAG_PREDICTOR 317 /* prediction scheme w/ LZW */ #define TIFFTAG_WHITEPOINT 318 /* image white point */ #define TIFFTAG_PRIMARYCHROMATICITIES 319 /* !primary chromaticities */ #define TIFFTAG_COLORMAP 320 /* RGB map for pallette image */ #define TIFFTAG_HALFTONEHINTS 321 /* !highlight+shadow info */ #define TIFFTAG_TILEWIDTH 322 /* !rows/data tile */ #define TIFFTAG_TILELENGTH 323 /* !cols/data tile */ #define TIFFTAG_TILEOFFSETS 324 /* !offsets to data tiles */ #define TIFFTAG_TILEBYTECOUNTS 325 /* !byte counts for tiles */ #define TIFFTAG_BADFAXLINES 326 /* lines w/ wrong pixel count */ #define TIFFTAG_CLEANFAXDATA 327 /* regenerated line info */ #define CLEANFAXDATA_CLEAN 0 /* no errors detected */ #define CLEANFAXDATA_REGENERATED 1 /* receiver regenerated lines */ #define CLEANFAXDATA_UNCLEAN 2 /* uncorrected errors exist */ #define TIFFTAG_CONSECUTIVEBADFAXLINES 328 /* max consecutive bad lines */ #define TIFFTAG_INKSET 332 /* !inks in separated image */ #define INKSET_CMYK 1 /* !cyan-magenta-yellow-black */ #define TIFFTAG_INKNAMES 333 /* !ascii names of inks */ #define TIFFTAG_DOTRANGE 336 /* !0% and 100% dot codes */ #define TIFFTAG_TARGETPRINTER 337 /* !separation target */ #define TIFFTAG_EXTRASAMPLES 338 /* !info about extra samples */ #define EXTRASAMPLE_UNSPECIFIED 0 /* !unspecified data */ #define EXTRASAMPLE_ASSOCALPHA 1 /* !associated alpha data */ #define EXTRASAMPLE_UNASSALPHA 2 /* !unassociated alpha data */ #define TIFFTAG_SAMPLEFORMAT 339 /* !data sample format */ #define SAMPLEFORMAT_INT 1 /* !signed integer data */ #define SAMPLEFORMAT_UINT 2 /* !unsigned integer data */ #define SAMPLEFORMAT_IEEEFP 3 /* !IEEE floating point data */ #define SAMPLEFORMAT_VOID 4 /* !untyped data */ #define TIFFTAG_SMINSAMPLEVALUE 340 /* !variable MinSampleValue */ #define TIFFTAG_SMAXSAMPLEVALUE 341 /* !variable MaxSampleValue */ #define TIFFTAG_JPEGPROC 512 /* !JPEG processing algorithm */ #define JPEGPROC_BASELINE 1 /* !baseline sequential */ #define JPEGPROC_LOSSLESS 14 /* !Huffman coded lossless */ #define TIFFTAG_JPEGIFOFFSET 513 /* !pointer to SOI marker */ #define TIFFTAG_JPEGIFBYTECOUNT 514 /* !JFIF stream length */ #define TIFFTAG_JPEGRESTARTINTERVAL 515 /* !restart interval length */ #define TIFFTAG_JPEGLOSSLESSPREDICTORS 517 /* !lossless proc predictor */ #define TIFFTAG_JPEGPOINTTRANSFORM 518 /* !lossless point transform */ #define TIFFTAG_JPEGQTABLES 519 /* !Q matrice offsets */ #define TIFFTAG_JPEGDCTABLES 520 /* !DCT table offsets */ #define TIFFTAG_JPEGACTABLES 521 /* !AC coefficient offsets */ #define TIFFTAG_YCBCRCOEFFICIENTS 529 /* !RGB -> YCbCr transform */ #define TIFFTAG_YCBCRSUBSAMPLING 530 /* !YCbCr subsampling factors */ #define TIFFTAG_YCBCRPOSITIONING 531 /* !subsample positioning */ #define YCBCRPOSITION_CENTERED 1 /* !as in PostScript Level 2 */ #define YCBCRPOSITION_COSITED 2 /* !as in CCIR 601-1 */ #define TIFFTAG_REFERENCEBLACKWHITE 532 /* !colorimetry info */ /* tags 32995-32999 are private tags registered to SGI */ #define TIFFTAG_MATTEING 32995 /* $use ExtraSamples */ #define TIFFTAG_DATATYPE 32996 /* $use SampleFormat */ #define TIFFTAG_IMAGEDEPTH 32997 /* z depth of image */ #define TIFFTAG_TILEDEPTH 32998 /* z depth/data tile */ /* * TIFF is defined as an incomplete type to hide the * library's internal data structures from clients. */ typedef struct tiff TIFF; /* * Flags to pass to TIFFPrintDirectory to control * printing of data structures that are potentially * very large. Bit-or these flags to enable printing * multiple items. */ #define TIFFPRINT_NONE 0x0 /* no extra info */ #define TIFFPRINT_STRIPS 0x1 /* strips/tiles info */ #define TIFFPRINT_CURVES 0x2 /* color/gray response curves */ #define TIFFPRINT_COLORMAP 0x4 /* colormap */ #define TIFFPRINT_JPEGQTABLES 0x100 /* JPEG Q matrices */ #define TIFFPRINT_JPEGACTABLES 0x200 /* JPEG AC tables */ #define TIFFPRINT_JPEGDCTABLES 0x200 /* JPEG DC tables */ extern char TIFFVersion[]; extern unsigned char TIFFBitRevTable[256]; extern unsigned char TIFFNoBitRevTable[256]; /* * Macros for extracting components from the * packed ABGR form returned by TIFFReadRGBAImage. */ #define TIFFGetR(abgr) ((abgr) & 0xff) #define TIFFGetG(abgr) (((abgr) >> 8) & 0xff) #define TIFFGetB(abgr) (((abgr) >> 16) & 0xff) #define TIFFGetA(abgr) (((abgr) >> 24) & 0xff) typedef void (*TIFFErrorHandler)(char* module, char* fmt, va_list ap); extern void TIFFClose(TIFF*); extern int TIFFFlush(TIFF*); extern int TIFFFlushData(TIFF*); extern int TIFFGetField(TIFF*, int, ...); extern int TIFFVGetField(TIFF*, int, va_list); extern int TIFFGetFieldDefaulted(TIFF*, int, ...); extern int TIFFVGetFieldDefaulted(TIFF*, int, va_list); extern int TIFFReadDirectory(TIFF*); extern int TIFFScanlineSize(TIFF*); extern unsigned long TIFFStripSize(TIFF*); extern unsigned long TIFFVStripSize(TIFF*, unsigned long); extern unsigned long TIFFTileRowSize(TIFF*); extern unsigned long TIFFTileSize(TIFF*); extern unsigned long TIFFVTileSize(TIFF*, unsigned long); extern int TIFFFileno(TIFF*); extern int TIFFGetMode(TIFF*); extern int TIFFIsTiled(TIFF*); extern long TIFFCurrentRow(TIFF*); extern int TIFFCurrentDirectory(TIFF*); extern int TIFFCurrentStrip(TIFF*); extern int TIFFCurrentTile(TIFF*); extern int TIFFReadBufferSetup(TIFF*, char*, unsigned); extern int TIFFSetDirectory(TIFF*, int); extern int TIFFSetField(TIFF*, int, ...); extern int TIFFVSetField(TIFF*, int, va_list); extern int TIFFWriteDirectory(TIFF *); extern TIFF* TIFFOpen(char*, char*); extern TIFF* TIFFFdOpen(int, char*, char*); extern char* TIFFFileName(TIFF*); extern void TIFFError(char*, char*, ...); extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler handler); extern void TIFFWarning(char*, char*, ...); extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler handler); extern void TIFFPrintDirectory(TIFF*, FILE*, long); extern int TIFFReadScanline(TIFF*, unsigned char*, unsigned, unsigned); extern int TIFFWriteScanline(TIFF*, unsigned char*, unsigned, unsigned); extern int TIFFReadRGBAImage(TIFF*, unsigned long, unsigned long, unsigned long*, int stop); extern unsigned int TIFFComputeTile(TIFF*, unsigned long, unsigned long, unsigned int, unsigned long); extern int TIFFCheckTile(TIFF*, unsigned long, unsigned long, unsigned long, unsigned); extern unsigned int TIFFNumberOfTiles(TIFF*); extern int TIFFReadTile(TIFF*, unsigned char*, unsigned long, unsigned long, unsigned long, unsigned); extern unsigned int TIFFComputeStrip(TIFF*, unsigned long, unsigned int); extern unsigned int TIFFNumberOfStrips(TIFF*); extern int TIFFReadEncodedStrip(TIFF*, unsigned, unsigned char*, unsigned); extern int TIFFReadRawStrip(TIFF*, unsigned, unsigned char*, unsigned); extern int TIFFReadEncodedTile(TIFF*, unsigned, unsigned char*, unsigned); extern int TIFFReadRawTile(TIFF*, unsigned, unsigned char*, unsigned); extern int TIFFWriteEncodedStrip(TIFF*, unsigned, unsigned char*, unsigned); extern int TIFFWriteRawStrip(TIFF*, unsigned, unsigned char*, unsigned); extern int TIFFWriteEncodedTile(TIFF*, unsigned, unsigned char*, unsigned); extern int TIFFWriteRawTile(TIFF*, unsigned, unsigned char*, unsigned); extern int TIFFSwabShort(unsigned short *); extern int TIFFSwabLong(unsigned long *); extern int TIFFSwabArrayOfShort(unsigned short *, int); extern int TIFFSwabArrayOfLong(unsigned long *, int); extern int TIFFReverseBits(unsigned char *, int);