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366 lines
15 KiB
366 lines
15 KiB
/* $Id: tiffiop.h,v 1.82 2011-02-18 20:53:05 fwarmerdam Exp $ */ |
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/* |
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* Copyright (c) 1988-1997 Sam Leffler |
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* Copyright (c) 1991-1997 Silicon Graphics, Inc. |
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* |
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* Permission to use, copy, modify, distribute, and sell this software and |
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* its documentation for any purpose is hereby granted without fee, provided |
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* that (i) the above copyright notices and this permission notice appear in |
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* all copies of the software and related documentation, and (ii) the names of |
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* Sam Leffler and Silicon Graphics may not be used in any advertising or |
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* publicity relating to the software without the specific, prior written |
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* permission of Sam Leffler and Silicon Graphics. |
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* |
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
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* |
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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* OF THIS SOFTWARE. |
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*/ |
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#ifndef _TIFFIOP_ |
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#define _TIFFIOP_ |
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/* |
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* ``Library-private'' definitions. |
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*/ |
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#include "tif_config.h" |
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#ifdef HAVE_FCNTL_H |
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# include <fcntl.h> |
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#endif |
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#ifdef HAVE_SYS_TYPES_H |
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# include <sys/types.h> |
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#endif |
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#ifdef HAVE_STRING_H |
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# include <string.h> |
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#endif |
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#ifdef HAVE_ASSERT_H |
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# include <assert.h> |
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#else |
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# define assert(x) |
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#endif |
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#ifdef HAVE_SEARCH_H |
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# include <search.h> |
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#else |
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extern void *lfind(const void *, const void *, size_t *, size_t, |
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int (*)(const void *, const void *)); |
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#endif |
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#include "tiffio.h" |
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#include "tif_dir.h" |
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#ifndef STRIP_SIZE_DEFAULT |
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# define STRIP_SIZE_DEFAULT 8192 |
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#endif |
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#define streq(a,b) (strcmp(a,b) == 0) |
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#ifndef TRUE |
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#define TRUE 1 |
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#define FALSE 0 |
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#endif |
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typedef struct client_info { |
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struct client_info *next; |
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void *data; |
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char *name; |
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} TIFFClientInfoLink; |
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/* |
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* Typedefs for ``method pointers'' used internally. |
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* these are depriciated and provided only for backwards compatibility |
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*/ |
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typedef unsigned char tidataval_t; /* internal image data value type */ |
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typedef tidataval_t* tidata_t; /* reference to internal image data */ |
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typedef void (*TIFFVoidMethod)(TIFF*); |
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typedef int (*TIFFBoolMethod)(TIFF*); |
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typedef int (*TIFFPreMethod)(TIFF*, uint16); |
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typedef int (*TIFFCodeMethod)(TIFF* tif, uint8* buf, tmsize_t size, uint16 sample); |
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typedef int (*TIFFSeekMethod)(TIFF*, uint32); |
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typedef void (*TIFFPostMethod)(TIFF* tif, uint8* buf, tmsize_t size); |
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typedef uint32 (*TIFFStripMethod)(TIFF*, uint32); |
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typedef void (*TIFFTileMethod)(TIFF*, uint32*, uint32*); |
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struct tiff { |
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char* tif_name; /* name of open file */ |
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int tif_fd; /* open file descriptor */ |
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int tif_mode; /* open mode (O_*) */ |
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uint32 tif_flags; |
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#define TIFF_FILLORDER 0x00003 /* natural bit fill order for machine */ |
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#define TIFF_DIRTYHEADER 0x00004 /* header must be written on close */ |
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#define TIFF_DIRTYDIRECT 0x00008 /* current directory must be written */ |
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#define TIFF_BUFFERSETUP 0x00010 /* data buffers setup */ |
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#define TIFF_CODERSETUP 0x00020 /* encoder/decoder setup done */ |
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#define TIFF_BEENWRITING 0x00040 /* written 1+ scanlines to file */ |
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#define TIFF_SWAB 0x00080 /* byte swap file information */ |
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#define TIFF_NOBITREV 0x00100 /* inhibit bit reversal logic */ |
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#define TIFF_MYBUFFER 0x00200 /* my raw data buffer; free on close */ |
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#define TIFF_ISTILED 0x00400 /* file is tile, not strip- based */ |
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#define TIFF_MAPPED 0x00800 /* file is mapped into memory */ |
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#define TIFF_POSTENCODE 0x01000 /* need call to postencode routine */ |
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#define TIFF_INSUBIFD 0x02000 /* currently writing a subifd */ |
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#define TIFF_UPSAMPLED 0x04000 /* library is doing data up-sampling */ |
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#define TIFF_STRIPCHOP 0x08000 /* enable strip chopping support */ |
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#define TIFF_HEADERONLY 0x10000 /* read header only, do not process the first directory */ |
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#define TIFF_NOREADRAW 0x20000 /* skip reading of raw uncompressed image data */ |
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#define TIFF_INCUSTOMIFD 0x40000 /* currently writing a custom IFD */ |
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#define TIFF_BIGTIFF 0x80000 /* read/write bigtiff */ |
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#define TIFF_BUF4WRITE 0x100000 /* rawcc bytes are for writing */ |
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#define TIFF_DIRTYSTRIP 0x200000 /* stripoffsets/stripbytecount dirty*/ |
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#define TIFF_PERSAMPLE 0x400000 /* get/set per sample tags as arrays */ |
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uint64 tif_diroff; /* file offset of current directory */ |
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uint64 tif_nextdiroff; /* file offset of following directory */ |
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uint64* tif_dirlist; /* list of offsets to already seen directories to prevent IFD looping */ |
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uint16 tif_dirlistsize; /* number of entires in offset list */ |
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uint16 tif_dirnumber; /* number of already seen directories */ |
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TIFFDirectory tif_dir; /* internal rep of current directory */ |
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TIFFDirectory tif_customdir; /* custom IFDs are separated from the main ones */ |
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union { |
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TIFFHeaderCommon common; |
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TIFFHeaderClassic classic; |
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TIFFHeaderBig big; |
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} tif_header; |
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uint16 tif_header_size; /* file's header block and its length */ |
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uint32 tif_row; /* current scanline */ |
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uint16 tif_curdir; /* current directory (index) */ |
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uint32 tif_curstrip; /* current strip for read/write */ |
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uint64 tif_curoff; /* current offset for read/write */ |
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uint64 tif_dataoff; /* current offset for writing dir */ |
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/* SubIFD support */ |
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uint16 tif_nsubifd; /* remaining subifds to write */ |
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uint64 tif_subifdoff; /* offset for patching SubIFD link */ |
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/* tiling support */ |
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uint32 tif_col; /* current column (offset by row too) */ |
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uint32 tif_curtile; /* current tile for read/write */ |
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tmsize_t tif_tilesize; /* # of bytes in a tile */ |
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/* compression scheme hooks */ |
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int tif_decodestatus; |
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TIFFBoolMethod tif_fixuptags; /* called in TIFFReadDirectory */ |
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TIFFBoolMethod tif_setupdecode; /* called once before predecode */ |
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TIFFPreMethod tif_predecode; /* pre- row/strip/tile decoding */ |
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TIFFBoolMethod tif_setupencode; /* called once before preencode */ |
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int tif_encodestatus; |
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TIFFPreMethod tif_preencode; /* pre- row/strip/tile encoding */ |
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TIFFBoolMethod tif_postencode; /* post- row/strip/tile encoding */ |
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TIFFCodeMethod tif_decoderow; /* scanline decoding routine */ |
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TIFFCodeMethod tif_encoderow; /* scanline encoding routine */ |
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TIFFCodeMethod tif_decodestrip; /* strip decoding routine */ |
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TIFFCodeMethod tif_encodestrip; /* strip encoding routine */ |
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TIFFCodeMethod tif_decodetile; /* tile decoding routine */ |
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TIFFCodeMethod tif_encodetile; /* tile encoding routine */ |
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TIFFVoidMethod tif_close; /* cleanup-on-close routine */ |
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TIFFSeekMethod tif_seek; /* position within a strip routine */ |
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TIFFVoidMethod tif_cleanup; /* cleanup state routine */ |
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TIFFStripMethod tif_defstripsize; /* calculate/constrain strip size */ |
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TIFFTileMethod tif_deftilesize; /* calculate/constrain tile size */ |
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uint8* tif_data; /* compression scheme private data */ |
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/* input/output buffering */ |
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tmsize_t tif_scanlinesize; /* # of bytes in a scanline */ |
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tmsize_t tif_scanlineskew; /* scanline skew for reading strips */ |
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uint8* tif_rawdata; /* raw data buffer */ |
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tmsize_t tif_rawdatasize; /* # of bytes in raw data buffer */ |
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tmsize_t tif_rawdataoff; /* rawdata offset within strip */ |
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tmsize_t tif_rawdataloaded;/* amount of data in rawdata */ |
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uint8* tif_rawcp; /* current spot in raw buffer */ |
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tmsize_t tif_rawcc; /* bytes unread from raw buffer */ |
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/* memory-mapped file support */ |
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uint8* tif_base; /* base of mapped file */ |
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tmsize_t tif_size; /* size of mapped file region (bytes, thus tmsize_t) */ |
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TIFFMapFileProc tif_mapproc; /* map file method */ |
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TIFFUnmapFileProc tif_unmapproc; /* unmap file method */ |
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/* input/output callback methods */ |
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thandle_t tif_clientdata; /* callback parameter */ |
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TIFFReadWriteProc tif_readproc; /* read method */ |
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TIFFReadWriteProc tif_writeproc; /* write method */ |
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TIFFSeekProc tif_seekproc; /* lseek method */ |
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TIFFCloseProc tif_closeproc; /* close method */ |
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TIFFSizeProc tif_sizeproc; /* filesize method */ |
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/* post-decoding support */ |
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TIFFPostMethod tif_postdecode; /* post decoding routine */ |
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/* tag support */ |
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TIFFField** tif_fields; /* sorted table of registered tags */ |
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size_t tif_nfields; /* # entries in registered tag table */ |
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const TIFFField* tif_foundfield; /* cached pointer to already found tag */ |
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TIFFTagMethods tif_tagmethods; /* tag get/set/print routines */ |
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TIFFClientInfoLink* tif_clientinfo; /* extra client information. */ |
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/* Backward compatibility stuff. We need these two fields for |
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* setting up an old tag extension scheme. */ |
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TIFFFieldArray* tif_fieldscompat; |
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size_t tif_nfieldscompat; |
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}; |
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#define isPseudoTag(t) (t > 0xffff) /* is tag value normal or pseudo */ |
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#define isTiled(tif) (((tif)->tif_flags & TIFF_ISTILED) != 0) |
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#define isMapped(tif) (((tif)->tif_flags & TIFF_MAPPED) != 0) |
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#define isFillOrder(tif, o) (((tif)->tif_flags & (o)) != 0) |
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#define isUpSampled(tif) (((tif)->tif_flags & TIFF_UPSAMPLED) != 0) |
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#define TIFFReadFile(tif, buf, size) \ |
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((*(tif)->tif_readproc)((tif)->tif_clientdata,(buf),(size))) |
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#define TIFFWriteFile(tif, buf, size) \ |
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((*(tif)->tif_writeproc)((tif)->tif_clientdata,(buf),(size))) |
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#define TIFFSeekFile(tif, off, whence) \ |
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((*(tif)->tif_seekproc)((tif)->tif_clientdata,(off),(whence))) |
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#define TIFFCloseFile(tif) \ |
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((*(tif)->tif_closeproc)((tif)->tif_clientdata)) |
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#define TIFFGetFileSize(tif) \ |
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((*(tif)->tif_sizeproc)((tif)->tif_clientdata)) |
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#define TIFFMapFileContents(tif, paddr, psize) \ |
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((*(tif)->tif_mapproc)((tif)->tif_clientdata,(paddr),(psize))) |
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#define TIFFUnmapFileContents(tif, addr, size) \ |
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((*(tif)->tif_unmapproc)((tif)->tif_clientdata,(addr),(size))) |
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/* |
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* Default Read/Seek/Write definitions. |
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*/ |
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#ifndef ReadOK |
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#define ReadOK(tif, buf, size) \ |
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(TIFFReadFile((tif),(buf),(size))==(size)) |
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#endif |
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#ifndef SeekOK |
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#define SeekOK(tif, off) \ |
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(TIFFSeekFile((tif),(off),SEEK_SET)==(off)) |
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#endif |
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#ifndef WriteOK |
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#define WriteOK(tif, buf, size) \ |
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(TIFFWriteFile((tif),(buf),(size))==(size)) |
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#endif |
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/* NB: the uint32 casts are to silence certain ANSI-C compilers */ |
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#define TIFFhowmany_32(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \ |
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((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \ |
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0U) |
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#define TIFFhowmany8_32(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) |
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#define TIFFroundup_32(x, y) (TIFFhowmany_32(x,y)*(y)) |
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#define TIFFhowmany_64(x, y) ((((uint64)(x))+(((uint64)(y))-1))/((uint64)(y))) |
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#define TIFFhowmany8_64(x) (((x)&0x07)?((uint64)(x)>>3)+1:(uint64)(x)>>3) |
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#define TIFFroundup_64(x, y) (TIFFhowmany_64(x,y)*(y)) |
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/* Safe multiply which returns zero if there is an integer overflow */ |
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#define TIFFSafeMultiply(t,v,m) ((((t)m != (t)0) && (((t)((v*m)/m)) == (t)v)) ? (t)(v*m) : (t)0) |
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#define TIFFmax(A,B) ((A)>(B)?(A):(B)) |
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#define TIFFmin(A,B) ((A)<(B)?(A):(B)) |
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#define TIFFArrayCount(a) (sizeof (a) / sizeof ((a)[0])) |
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#if defined(__cplusplus) |
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extern "C" { |
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#endif |
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extern int _TIFFgetMode(const char* mode, const char* module); |
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extern int _TIFFNoRowEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s); |
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extern int _TIFFNoStripEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s); |
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extern int _TIFFNoTileEncode(TIFF*, uint8* pp, tmsize_t cc, uint16 s); |
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extern int _TIFFNoRowDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s); |
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extern int _TIFFNoStripDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s); |
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extern int _TIFFNoTileDecode(TIFF*, uint8* pp, tmsize_t cc, uint16 s); |
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extern void _TIFFNoPostDecode(TIFF* tif, uint8* buf, tmsize_t cc); |
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extern int _TIFFNoPreCode(TIFF* tif, uint16 s); |
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extern int _TIFFNoSeek(TIFF* tif, uint32 off); |
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extern void _TIFFSwab16BitData(TIFF* tif, uint8* buf, tmsize_t cc); |
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extern void _TIFFSwab24BitData(TIFF* tif, uint8* buf, tmsize_t cc); |
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extern void _TIFFSwab32BitData(TIFF* tif, uint8* buf, tmsize_t cc); |
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extern void _TIFFSwab64BitData(TIFF* tif, uint8* buf, tmsize_t cc); |
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extern int TIFFFlushData1(TIFF* tif); |
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extern int TIFFDefaultDirectory(TIFF* tif); |
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extern void _TIFFSetDefaultCompressionState(TIFF* tif); |
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extern int _TIFFRewriteField(TIFF *, uint16, TIFFDataType, tmsize_t, void *); |
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extern int TIFFSetCompressionScheme(TIFF* tif, int scheme); |
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extern int TIFFSetDefaultCompressionState(TIFF* tif); |
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extern uint32 _TIFFDefaultStripSize(TIFF* tif, uint32 s); |
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extern void _TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th); |
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extern int _TIFFDataSize(TIFFDataType type); |
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extern void _TIFFsetByteArray(void**, void*, uint32); |
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extern void _TIFFsetString(char**, char*); |
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extern void _TIFFsetShortArray(uint16**, uint16*, uint32); |
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extern void _TIFFsetLongArray(uint32**, uint32*, uint32); |
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extern void _TIFFsetFloatArray(float**, float*, uint32); |
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extern void _TIFFsetDoubleArray(double**, double*, uint32); |
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extern void _TIFFprintAscii(FILE*, const char*); |
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extern void _TIFFprintAsciiTag(FILE*, const char*, const char*); |
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extern TIFFErrorHandler _TIFFwarningHandler; |
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extern TIFFErrorHandler _TIFFerrorHandler; |
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extern TIFFErrorHandlerExt _TIFFwarningHandlerExt; |
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extern TIFFErrorHandlerExt _TIFFerrorHandlerExt; |
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extern uint32 _TIFFMultiply32(TIFF*, uint32, uint32, const char*); |
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extern uint64 _TIFFMultiply64(TIFF*, uint64, uint64, const char*); |
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extern void* _TIFFCheckMalloc(TIFF*, tmsize_t, tmsize_t, const char*); |
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extern void* _TIFFCheckRealloc(TIFF*, void*, tmsize_t, tmsize_t, const char*); |
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extern double _TIFFUInt64ToDouble(uint64); |
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extern float _TIFFUInt64ToFloat(uint64); |
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extern int TIFFInitDumpMode(TIFF*, int); |
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#ifdef PACKBITS_SUPPORT |
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extern int TIFFInitPackBits(TIFF*, int); |
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#endif |
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#ifdef CCITT_SUPPORT |
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extern int TIFFInitCCITTRLE(TIFF*, int), TIFFInitCCITTRLEW(TIFF*, int); |
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extern int TIFFInitCCITTFax3(TIFF*, int), TIFFInitCCITTFax4(TIFF*, int); |
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#endif |
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#ifdef THUNDER_SUPPORT |
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extern int TIFFInitThunderScan(TIFF*, int); |
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#endif |
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#ifdef NEXT_SUPPORT |
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extern int TIFFInitNeXT(TIFF*, int); |
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#endif |
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#ifdef LZW_SUPPORT |
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extern int TIFFInitLZW(TIFF*, int); |
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#endif |
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#ifdef OJPEG_SUPPORT |
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extern int TIFFInitOJPEG(TIFF*, int); |
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#endif |
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#ifdef JPEG_SUPPORT |
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extern int TIFFInitJPEG(TIFF*, int); |
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#endif |
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#ifdef JBIG_SUPPORT |
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extern int TIFFInitJBIG(TIFF*, int); |
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#endif |
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#ifdef ZIP_SUPPORT |
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extern int TIFFInitZIP(TIFF*, int); |
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#endif |
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#ifdef PIXARLOG_SUPPORT |
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extern int TIFFInitPixarLog(TIFF*, int); |
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#endif |
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#ifdef LOGLUV_SUPPORT |
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extern int TIFFInitSGILog(TIFF*, int); |
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#endif |
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#ifdef LZMA_SUPPORT |
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extern int TIFFInitLZMA(TIFF*, int); |
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#endif |
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#ifdef VMS |
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extern const TIFFCodec _TIFFBuiltinCODECS[]; |
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#else |
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extern TIFFCodec _TIFFBuiltinCODECS[]; |
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#endif |
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#if defined(__cplusplus) |
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} |
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#endif |
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#endif /* _TIFFIOP_ */ |
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/* vim: set ts=8 sts=8 sw=8 noet: */ |
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/* |
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* Local Variables: |
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* mode: c |
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* c-basic-offset: 8 |
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* fill-column: 78 |
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* End: |
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*/
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