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445 lines
20 KiB
C
445 lines
20 KiB
C
/*
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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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#include <string.h>
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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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#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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#define strneq(a,b,n) (strncmp(a,b,n) == 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 deprecated 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_t);
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typedef int (*TIFFCodeMethod)(TIFF* tif, uint8_t* buf, tmsize_t size, uint16_t sample);
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typedef int (*TIFFSeekMethod)(TIFF*, uint32_t);
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typedef void (*TIFFPostMethod)(TIFF* tif, uint8_t* buf, tmsize_t size);
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typedef uint32_t (*TIFFStripMethod)(TIFF*, uint32_t);
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typedef void (*TIFFTileMethod)(TIFF*, uint32_t*, uint32_t*);
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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_t tif_flags;
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#define TIFF_FILLORDER 0x00003U /* natural bit fill order for machine */
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#define TIFF_DIRTYHEADER 0x00004U /* header must be written on close */
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#define TIFF_DIRTYDIRECT 0x00008U /* current directory must be written */
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#define TIFF_BUFFERSETUP 0x00010U /* data buffers setup */
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#define TIFF_CODERSETUP 0x00020U /* encoder/decoder setup done */
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#define TIFF_BEENWRITING 0x00040U /* written 1+ scanlines to file */
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#define TIFF_SWAB 0x00080U /* byte swap file information */
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#define TIFF_NOBITREV 0x00100U /* inhibit bit reversal logic */
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#define TIFF_MYBUFFER 0x00200U /* my raw data buffer; free on close */
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#define TIFF_ISTILED 0x00400U /* file is tile, not strip- based */
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#define TIFF_MAPPED 0x00800U /* file is mapped into memory */
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#define TIFF_POSTENCODE 0x01000U /* need call to postencode routine */
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#define TIFF_INSUBIFD 0x02000U /* currently writing a subifd */
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#define TIFF_UPSAMPLED 0x04000U /* library is doing data up-sampling */
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#define TIFF_STRIPCHOP 0x08000U /* enable strip chopping support */
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#define TIFF_HEADERONLY 0x10000U /* read header only, do not process the first directory */
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#define TIFF_NOREADRAW 0x20000U /* skip reading of raw uncompressed image data */
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#define TIFF_INCUSTOMIFD 0x40000U /* currently writing a custom IFD */
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#define TIFF_BIGTIFF 0x80000U /* read/write bigtiff */
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#define TIFF_BUF4WRITE 0x100000U /* rawcc bytes are for writing */
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#define TIFF_DIRTYSTRIP 0x200000U /* stripoffsets/stripbytecount dirty*/
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#define TIFF_PERSAMPLE 0x400000U /* get/set per sample tags as arrays */
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#define TIFF_BUFFERMMAP 0x800000U /* read buffer (tif_rawdata) points into mmap() memory */
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#define TIFF_DEFERSTRILELOAD 0x1000000U /* defer strip/tile offset/bytecount array loading. */
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#define TIFF_LAZYSTRILELOAD 0x2000000U /* lazy/ondemand loading of strip/tile offset/bytecount values. Only used if TIFF_DEFERSTRILELOAD is set and in read-only mode */
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#define TIFF_CHOPPEDUPARRAYS 0x4000000U /* set when allocChoppedUpStripArrays() has modified strip array */
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uint64_t tif_diroff; /* file offset of current directory */
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uint64_t tif_nextdiroff; /* file offset of following directory */
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uint64_t tif_lastdiroff; /* file offset of last directory written so far */
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uint64_t* tif_dirlist; /* list of offsets to already seen directories to prevent IFD looping */
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uint16_t tif_dirlistsize; /* number of entries in offset list */
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uint16_t 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_t tif_header_size; /* file's header block and its length */
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uint32_t tif_row; /* current scanline */
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uint16_t tif_curdir; /* current directory (index) */
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uint32_t tif_curstrip; /* current strip for read/write */
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uint64_t tif_curoff; /* current offset for read/write */
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uint64_t tif_lastvalidoff; /* last valid offset allowed for rewrite in place. Used only by TIFFAppendToStrip() */
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uint64_t tif_dataoff; /* current offset for writing dir */
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/* SubIFD support */
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uint16_t tif_nsubifd; /* remaining subifds to write */
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uint64_t tif_subifdoff; /* offset for patching SubIFD link */
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/* tiling support */
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uint32_t tif_col; /* current column (offset by row too) */
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uint32_t 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_t* 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_t* 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_t* 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_t* 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) _TIFFSeekOK(tif, 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_t casts are to silence certain ANSI-C compilers */
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#define TIFFhowmany_32(x, y) (((uint32_t)x < (0xffffffff - (uint32_t)(y-1))) ? \
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((((uint32_t)(x))+(((uint32_t)(y))-1))/((uint32_t)(y))) : \
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0U)
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/* Variant of TIFFhowmany_32() that doesn't return 0 if x close to MAXUINT. */
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/* Caution: TIFFhowmany_32_maxuint_compat(x,y)*y might overflow */
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#define TIFFhowmany_32_maxuint_compat(x, y) \
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(((uint32_t)(x) / (uint32_t)(y)) + ((((uint32_t)(x) % (uint32_t)(y)) != 0) ? 1 : 0))
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#define TIFFhowmany8_32(x) (((x)&0x07)?((uint32_t)(x)>>3)+1:(uint32_t)(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_t)(x))+(((uint64_t)(y))-1))/((uint64_t)(y)))
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#define TIFFhowmany8_64(x) (((x)&0x07)?((uint64_t)(x)>>3)+1:(uint64_t)(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 *unsigned* integer overflow. This macro is not safe for *signed* integer types */
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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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/*
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Support for large files.
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Windows read/write APIs support only 'unsigned int' rather than 'size_t'.
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Windows off_t is only 32-bit, even in 64-bit builds.
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*/
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#if defined(HAVE_FSEEKO)
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/*
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Use fseeko() and ftello() if they are available since they use
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'off_t' rather than 'long'. It is wrong to use fseeko() and
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ftello() only on systems with special LFS support since some systems
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(e.g. FreeBSD) support a 64-bit off_t by default.
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For MinGW, __MSVCRT_VERSION__ must be at least 0x800 to expose these
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interfaces. The MinGW compiler must support the requested version. MinGW
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does not distribute the CRT (it is supplied by Microsoft) so the correct CRT
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must be available on the target computer in order for the program to run.
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*/
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#if defined(HAVE_FSEEKO)
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# define fseek(stream,offset,whence) fseeko(stream,offset,whence)
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# define ftell(stream,offset,whence) ftello(stream,offset,whence)
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#endif
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#endif
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#if defined(__WIN32__) && \
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!(defined(_MSC_VER) && _MSC_VER < 1400) && \
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!(defined(__MSVCRT_VERSION__) && __MSVCRT_VERSION__ < 0x800)
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typedef unsigned int TIFFIOSize_t;
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#define _TIFF_lseek_f(fildes,offset,whence) _lseeki64(fildes,/* __int64 */ offset,whence)
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/* #define _TIFF_tell_f(fildes) /\* __int64 *\/ _telli64(fildes) */
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#define _TIFF_fseek_f(stream,offset,whence) _fseeki64(stream,/* __int64 */ offset,whence)
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#define _TIFF_fstat_f(fildes,stat_buff) _fstati64(fildes,/* struct _stati64 */ stat_buff)
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/* #define _TIFF_ftell_f(stream) /\* __int64 *\/ _ftelli64(stream) */
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/* #define _TIFF_stat_f(path,stat_buff) _stati64(path,/\* struct _stati64 *\/ stat_buff) */
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#define _TIFF_stat_s struct _stati64
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#define _TIFF_off_t __int64
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#else
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typedef size_t TIFFIOSize_t;
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#define _TIFF_lseek_f(fildes,offset,whence) lseek(fildes,offset,whence)
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/* #define _TIFF_tell_f(fildes) (_TIFF_lseek_f(fildes,0,SEEK_CUR)) */
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#define _TIFF_fseek_f(stream,offset,whence) fseek(stream,offset,whence)
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#define _TIFF_fstat_f(fildes,stat_buff) fstat(fildes,stat_buff)
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/* #define _TIFF_ftell_f(stream) ftell(stream) */
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/* #define _TIFF_stat_f(path,stat_buff) stat(path,stat_buff) */
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#define _TIFF_stat_s struct stat
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#define _TIFF_off_t off_t
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#endif
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#if defined(__has_attribute) && defined(__clang__)
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#if __has_attribute(no_sanitize)
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#define TIFF_NOSANITIZE_UNSIGNED_INT_OVERFLOW __attribute__((no_sanitize("unsigned-integer-overflow")))
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#else
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#define TIFF_NOSANITIZE_UNSIGNED_INT_OVERFLOW
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#endif
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#else
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#define TIFF_NOSANITIZE_UNSIGNED_INT_OVERFLOW
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#endif
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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_t* pp, tmsize_t cc, uint16_t s);
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extern int _TIFFNoStripEncode(TIFF* tif, uint8_t* pp, tmsize_t cc, uint16_t s);
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extern int _TIFFNoTileEncode(TIFF*, uint8_t* pp, tmsize_t cc, uint16_t s);
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extern int _TIFFNoRowDecode(TIFF* tif, uint8_t* pp, tmsize_t cc, uint16_t s);
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extern int _TIFFNoStripDecode(TIFF* tif, uint8_t* pp, tmsize_t cc, uint16_t s);
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extern int _TIFFNoTileDecode(TIFF*, uint8_t* pp, tmsize_t cc, uint16_t s);
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extern void _TIFFNoPostDecode(TIFF* tif, uint8_t* buf, tmsize_t cc);
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extern int _TIFFNoPreCode(TIFF* tif, uint16_t s);
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extern int _TIFFNoSeek(TIFF* tif, uint32_t off);
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extern void _TIFFSwab16BitData(TIFF* tif, uint8_t* buf, tmsize_t cc);
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extern void _TIFFSwab24BitData(TIFF* tif, uint8_t* buf, tmsize_t cc);
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extern void _TIFFSwab32BitData(TIFF* tif, uint8_t* buf, tmsize_t cc);
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extern void _TIFFSwab64BitData(TIFF* tif, uint8_t* 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_t, 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_t _TIFFDefaultStripSize(TIFF* tif, uint32_t s);
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extern void _TIFFDefaultTileSize(TIFF* tif, uint32_t* tw, uint32_t* th);
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extern void _TIFFsetByteArray(void**, const void*, uint32_t);
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extern void _TIFFsetShortArray(uint16_t**, const uint16_t*, uint32_t);
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extern void _TIFFsetLongArray(uint32_t**, const uint32_t*, uint32_t);
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extern void _TIFFsetFloatArray(float**, const float*, uint32_t);
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extern void _TIFFsetDoubleArray(double**, const double*, uint32_t);
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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_t _TIFFMultiply32(TIFF*, uint32_t, uint32_t, const char*);
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extern uint64_t _TIFFMultiply64(TIFF*, uint64_t, uint64_t, const char*);
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extern tmsize_t _TIFFMultiplySSize(TIFF*, tmsize_t, tmsize_t, const char*);
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extern tmsize_t _TIFFCastUInt64ToSSize(TIFF*, uint64_t, 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_t);
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extern float _TIFFUInt64ToFloat(uint64_t);
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extern float _TIFFClampDoubleToFloat(double);
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extern tmsize_t
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_TIFFReadEncodedStripAndAllocBuffer(TIFF* tif, uint32_t strip,
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void **buf, tmsize_t bufsizetoalloc,
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tmsize_t size_to_read);
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extern tmsize_t
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_TIFFReadEncodedTileAndAllocBuffer(TIFF* tif, uint32_t tile,
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void **buf, tmsize_t bufsizetoalloc,
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tmsize_t size_to_read);
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extern tmsize_t
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_TIFFReadTileAndAllocBuffer(TIFF* tif,
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void **buf, tmsize_t bufsizetoalloc,
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uint32_t x, uint32_t y, uint32_t z, uint16_t s);
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extern int _TIFFSeekOK(TIFF* tif, toff_t off);
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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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extern int TIFFJPEGIsFullStripRequired(TIFF*);
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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 LERC_SUPPORT
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extern int TIFFInitLERC(TIFF* tif, 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 ZSTD_SUPPORT
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|
extern int TIFFInitZSTD(TIFF*, int);
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|
#endif
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#ifdef WEBP_SUPPORT
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|
extern int TIFFInitWebP(TIFF*, int);
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#endif
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extern const TIFFCodec _TIFFBuiltinCODECS[];
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|
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#if defined(__cplusplus)
|
|
}
|
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#endif
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#endif /* _TIFFIOP_ */
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|
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/* vim: set ts=8 sts=8 sw=8 noet: */
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/*
|
|
* Local Variables:
|
|
* mode: c
|
|
* c-basic-offset: 8
|
|
* fill-column: 78
|
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* End:
|
|
*/
|