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diff --git a/third_party/libtiff/tiffiop.h b/third_party/libtiff/tiffiop.h
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+++ b/third_party/libtiff/tiffiop.h
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+/* $Id: tiffiop.h,v 1.87 2015-08-23 17:49:01 bfriesen Exp $ */
+
+/*
+ * Copyright (c) 1988-1997 Sam Leffler
+ * Copyright (c) 1991-1997 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the names of
+ * Sam Leffler and Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Sam Leffler and Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _TIFFIOP_
+#define _TIFFIOP_
+/*
+ * ``Library-private'' definitions.
+ */
+
+#include "tiffconf.h"
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+
+#ifdef HAVE_ASSERT_H
+# include <assert.h>
+#else
+# define assert(x)
+#endif
+
+#ifdef HAVE_SEARCH_H
+# include <search.h>
+#else
+extern void *lfind(const void *, const void *, size_t *, size_t,
+ int (*)(const void *, const void *));
+#endif
+
+#if !defined(HAVE_SNPRINTF) && !defined(HAVE__SNPRINTF)
+#undef snprintf
+#define snprintf _TIFF_snprintf_f
+extern int snprintf(char* str, size_t size, const char* format, ...);
+#endif
+
+#include "tiffio.h"
+
+#include "tif_dir.h"
+
+#ifndef STRIP_SIZE_DEFAULT
+# define STRIP_SIZE_DEFAULT 8192
+#endif
+
+#define streq(a,b) (strcmp(a,b) == 0)
+
+#ifndef TRUE
+#define TRUE 1
+#define FALSE 0
+#endif
+
+typedef struct client_info {
+ struct client_info *next;
+ void *data;
+ char *name;
+} TIFFClientInfoLink;
+
+/*
+ * Typedefs for ``method pointers'' used internally.
+ * these are depriciated and provided only for backwards compatibility
+ */
+typedef unsigned char tidataval_t; /* internal image data value type */
+typedef tidataval_t* tidata_t; /* reference to internal image data */
+
+typedef void (*TIFFVoidMethod)(TIFF*);
+typedef int (*TIFFBoolMethod)(TIFF*);
+typedef int (*TIFFPreMethod)(TIFF*, uint16);
+typedef int (*TIFFCodeMethod)(TIFF* tif, uint8* buf, tmsize_t size, uint16 sample);
+typedef int (*TIFFSeekMethod)(TIFF*, uint32);
+typedef void (*TIFFPostMethod)(TIFF* tif, uint8* buf, tmsize_t size);
+typedef uint32 (*TIFFStripMethod)(TIFF*, uint32);
+typedef void (*TIFFTileMethod)(TIFF*, uint32*, uint32*);
+
+struct tiff {
+ char* tif_name; /* name of open file */
+ int tif_fd; /* open file descriptor */
+ int tif_mode; /* open mode (O_*) */
+ uint32 tif_flags;
+ #define TIFF_FILLORDER 0x00003 /* natural bit fill order for machine */
+ #define TIFF_DIRTYHEADER 0x00004 /* header must be written on close */
+ #define TIFF_DIRTYDIRECT 0x00008 /* current directory must be written */
+ #define TIFF_BUFFERSETUP 0x00010 /* data buffers setup */
+ #define TIFF_CODERSETUP 0x00020 /* encoder/decoder setup done */
+ #define TIFF_BEENWRITING 0x00040 /* written 1+ scanlines to file */
+ #define TIFF_SWAB 0x00080 /* byte swap file information */
+ #define TIFF_NOBITREV 0x00100 /* inhibit bit reversal logic */
+ #define TIFF_MYBUFFER 0x00200 /* my raw data buffer; free on close */
+ #define TIFF_ISTILED 0x00400 /* file is tile, not strip- based */
+ #define TIFF_MAPPED 0x00800 /* file is mapped into memory */
+ #define TIFF_POSTENCODE 0x01000 /* need call to postencode routine */
+ #define TIFF_INSUBIFD 0x02000 /* currently writing a subifd */
+ #define TIFF_UPSAMPLED 0x04000 /* library is doing data up-sampling */
+ #define TIFF_STRIPCHOP 0x08000 /* enable strip chopping support */
+ #define TIFF_HEADERONLY 0x10000 /* read header only, do not process the first directory */
+ #define TIFF_NOREADRAW 0x20000 /* skip reading of raw uncompressed image data */
+ #define TIFF_INCUSTOMIFD 0x40000 /* currently writing a custom IFD */
+ #define TIFF_BIGTIFF 0x80000 /* read/write bigtiff */
+ #define TIFF_BUF4WRITE 0x100000 /* rawcc bytes are for writing */
+ #define TIFF_DIRTYSTRIP 0x200000 /* stripoffsets/stripbytecount dirty*/
+ #define TIFF_PERSAMPLE 0x400000 /* get/set per sample tags as arrays */
+ #define TIFF_BUFFERMMAP 0x800000 /* read buffer (tif_rawdata) points into mmap() memory */
+ uint64 tif_diroff; /* file offset of current directory */
+ uint64 tif_nextdiroff; /* file offset of following directory */
+ uint64* tif_dirlist; /* list of offsets to already seen directories to prevent IFD looping */
+ uint16 tif_dirlistsize; /* number of entires in offset list */
+ uint16 tif_dirnumber; /* number of already seen directories */
+ TIFFDirectory tif_dir; /* internal rep of current directory */
+ TIFFDirectory tif_customdir; /* custom IFDs are separated from the main ones */
+ union {
+ TIFFHeaderCommon common;
+ TIFFHeaderClassic classic;
+ TIFFHeaderBig big;
+ } tif_header;
+ uint16 tif_header_size; /* file's header block and its length */
+ uint32 tif_row; /* current scanline */
+ uint16 tif_curdir; /* current directory (index) */
+ uint32 tif_curstrip; /* current strip for read/write */
+ uint64 tif_curoff; /* current offset for read/write */
+ uint64 tif_dataoff; /* current offset for writing dir */
+ /* SubIFD support */
+ uint16 tif_nsubifd; /* remaining subifds to write */
+ uint64 tif_subifdoff; /* offset for patching SubIFD link */
+ /* tiling support */
+ uint32 tif_col; /* current column (offset by row too) */
+ uint32 tif_curtile; /* current tile for read/write */
+ tmsize_t tif_tilesize; /* # of bytes in a tile */
+ /* compression scheme hooks */
+ int tif_decodestatus;
+ TIFFBoolMethod tif_fixuptags; /* called in TIFFReadDirectory */
+ TIFFBoolMethod tif_setupdecode; /* called once before predecode */
+ TIFFPreMethod tif_predecode; /* pre- row/strip/tile decoding */
+ TIFFBoolMethod tif_setupencode; /* called once before preencode */
+ int tif_encodestatus;
+ TIFFPreMethod tif_preencode; /* pre- row/strip/tile encoding */
+ TIFFBoolMethod tif_postencode; /* post- row/strip/tile encoding */
+ TIFFCodeMethod tif_decoderow; /* scanline decoding routine */
+ TIFFCodeMethod tif_encoderow; /* scanline encoding routine */
+ TIFFCodeMethod tif_decodestrip; /* strip decoding routine */
+ TIFFCodeMethod tif_encodestrip; /* strip encoding routine */
+ TIFFCodeMethod tif_decodetile; /* tile decoding routine */
+ TIFFCodeMethod tif_encodetile; /* tile encoding routine */
+ TIFFVoidMethod tif_close; /* cleanup-on-close routine */
+ TIFFSeekMethod tif_seek; /* position within a strip routine */
+ TIFFVoidMethod tif_cleanup; /* cleanup state routine */
+ TIFFStripMethod tif_defstripsize; /* calculate/constrain strip size */
+ TIFFTileMethod tif_deftilesize; /* calculate/constrain tile size */
+ uint8* tif_data; /* compression scheme private data */
+ /* input/output buffering */
+ tmsize_t tif_scanlinesize; /* # of bytes in a scanline */
+ tmsize_t tif_scanlineskew; /* scanline skew for reading strips */
+ uint8* tif_rawdata; /* raw data buffer */
+ tmsize_t tif_rawdatasize; /* # of bytes in raw data buffer */
+ tmsize_t tif_rawdataoff; /* rawdata offset within strip */
+ tmsize_t tif_rawdataloaded;/* amount of data in rawdata */
+ uint8* tif_rawcp; /* current spot in raw buffer */
+ tmsize_t tif_rawcc; /* bytes unread from raw buffer */
+ /* memory-mapped file support */
+ uint8* tif_base; /* base of mapped file */
+ tmsize_t tif_size; /* size of mapped file region (bytes, thus tmsize_t) */
+ TIFFMapFileProc tif_mapproc; /* map file method */
+ TIFFUnmapFileProc tif_unmapproc; /* unmap file method */
+ /* input/output callback methods */
+ thandle_t tif_clientdata; /* callback parameter */
+ TIFFReadWriteProc tif_readproc; /* read method */
+ TIFFReadWriteProc tif_writeproc; /* write method */
+ TIFFSeekProc tif_seekproc; /* lseek method */
+ TIFFCloseProc tif_closeproc; /* close method */
+ TIFFSizeProc tif_sizeproc; /* filesize method */
+ /* post-decoding support */
+ TIFFPostMethod tif_postdecode; /* post decoding routine */
+ /* tag support */
+ TIFFField** tif_fields; /* sorted table of registered tags */
+ size_t tif_nfields; /* # entries in registered tag table */
+ const TIFFField* tif_foundfield; /* cached pointer to already found tag */
+ TIFFTagMethods tif_tagmethods; /* tag get/set/print routines */
+ TIFFClientInfoLink* tif_clientinfo; /* extra client information. */
+ /* Backward compatibility stuff. We need these two fields for
+ * setting up an old tag extension scheme. */
+ TIFFFieldArray* tif_fieldscompat;
+ size_t tif_nfieldscompat;
+};
+
+#define isPseudoTag(t) (t > 0xffff) /* is tag value normal or pseudo */
+
+#define isTiled(tif) (((tif)->tif_flags & TIFF_ISTILED) != 0)
+#define isMapped(tif) (((tif)->tif_flags & TIFF_MAPPED) != 0)
+#define isFillOrder(tif, o) (((tif)->tif_flags & (o)) != 0)
+#define isUpSampled(tif) (((tif)->tif_flags & TIFF_UPSAMPLED) != 0)
+#define TIFFReadFile(tif, buf, size) \
+ ((*(tif)->tif_readproc)((tif)->tif_clientdata,(buf),(size)))
+#define TIFFWriteFile(tif, buf, size) \
+ ((*(tif)->tif_writeproc)((tif)->tif_clientdata,(buf),(size)))
+#define TIFFSeekFile(tif, off, whence) \
+ ((*(tif)->tif_seekproc)((tif)->tif_clientdata,(off),(whence)))
+#define TIFFCloseFile(tif) \
+ ((*(tif)->tif_closeproc)((tif)->tif_clientdata))
+#define TIFFGetFileSize(tif) \
+ ((*(tif)->tif_sizeproc)((tif)->tif_clientdata))
+#define TIFFMapFileContents(tif, paddr, psize) \
+ ((*(tif)->tif_mapproc)((tif)->tif_clientdata,(paddr),(psize)))
+#define TIFFUnmapFileContents(tif, addr, size) \
+ ((*(tif)->tif_unmapproc)((tif)->tif_clientdata,(addr),(size)))
+
+/*
+ * Default Read/Seek/Write definitions.
+ */
+#ifndef ReadOK
+#define ReadOK(tif, buf, size) \
+ (TIFFReadFile((tif),(buf),(size))==(size))
+#endif
+#ifndef SeekOK
+#define SeekOK(tif, off) \
+ (TIFFSeekFile((tif),(off),SEEK_SET)==(off))
+#endif
+#ifndef WriteOK
+#define WriteOK(tif, buf, size) \
+ (TIFFWriteFile((tif),(buf),(size))==(size))
+#endif
+
+/* NB: the uint32 casts are to silence certain ANSI-C compilers */
+#define TIFFhowmany_32(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \
+ ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \
+ 0U)
+#define TIFFhowmany8_32(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3)
+#define TIFFroundup_32(x, y) (TIFFhowmany_32(x,y)*(y))
+#define TIFFhowmany_64(x, y) ((((uint64)(x))+(((uint64)(y))-1))/((uint64)(y)))
+#define TIFFhowmany8_64(x) (((x)&0x07)?((uint64)(x)>>3)+1:(uint64)(x)>>3)
+#define TIFFroundup_64(x, y) (TIFFhowmany_64(x,y)*(y))
+
+/* Safe multiply which returns zero if there is an integer overflow */
+#define TIFFSafeMultiply(t,v,m) ((((t)(m) != (t)0) && (((t)(((v)*(m))/(m))) == (t)(v))) ? (t)((v)*(m)) : (t)0)
+
+#define TIFFmax(A,B) ((A)>(B)?(A):(B))
+#define TIFFmin(A,B) ((A)<(B)?(A):(B))
+
+#define TIFFArrayCount(a) (sizeof (a) / sizeof ((a)[0]))
+
+/*
+ Support for large files.
+
+ Windows read/write APIs support only 'unsigned int' rather than 'size_t'.
+ Windows off_t is only 32-bit, even in 64-bit builds.
+*/
+#if defined(HAVE_FSEEKO)
+/*
+ Use fseeko() and ftello() if they are available since they use
+ 'off_t' rather than 'long'. It is wrong to use fseeko() and
+ ftello() only on systems with special LFS support since some systems
+ (e.g. FreeBSD) support a 64-bit off_t by default.
+
+ For MinGW, __MSVCRT_VERSION__ must be at least 0x800 to expose these
+ interfaces. The MinGW compiler must support the requested version. MinGW
+ does not distribute the CRT (it is supplied by Microsoft) so the correct CRT
+ must be available on the target computer in order for the program to run.
+*/
+#if defined(HAVE_FSEEKO)
+# define fseek(stream,offset,whence) fseeko(stream,offset,whence)
+# define ftell(stream,offset,whence) ftello(stream,offset,whence)
+#endif
+#endif
+#if defined(__WIN32__) && \
+ !(defined(_MSC_VER) && _MSC_VER < 1400) && \
+ !(defined(__MSVCRT_VERSION__) && __MSVCRT_VERSION__ < 0x800)
+typedef unsigned int TIFFIOSize_t;
+#define _TIFF_lseek_f(fildes,offset,whence) _lseeki64(fildes,/* __int64 */ offset,whence)
+/* #define _TIFF_tell_f(fildes) /\* __int64 *\/ _telli64(fildes) */
+#define _TIFF_fseek_f(stream,offset,whence) _fseeki64(stream,/* __int64 */ offset,whence)
+#define _TIFF_fstat_f(fildes,stat_buff) _fstati64(fildes,/* struct _stati64 */ stat_buff)
+/* #define _TIFF_ftell_f(stream) /\* __int64 *\/ _ftelli64(stream) */
+/* #define _TIFF_stat_f(path,stat_buff) _stati64(path,/\* struct _stati64 *\/ stat_buff) */
+#define _TIFF_stat_s struct _stati64
+#define _TIFF_off_t __int64
+#else
+typedef size_t TIFFIOSize_t;
+#define _TIFF_lseek_f(fildes,offset,whence) lseek(fildes,offset,whence)
+/* #define _TIFF_tell_f(fildes) (_TIFF_lseek_f(fildes,0,SEEK_CUR)) */
+#define _TIFF_fseek_f(stream,offset,whence) fseek(stream,offset,whence)
+#define _TIFF_fstat_f(fildes,stat_buff) fstat(fildes,stat_buff)
+/* #define _TIFF_ftell_f(stream) ftell(stream) */
+/* #define _TIFF_stat_f(path,stat_buff) stat(path,stat_buff) */
+#define _TIFF_stat_s struct stat
+#define _TIFF_off_t off_t
+#endif
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+extern int _TIFFgetMode(const char* mode, const char* module);
+extern int _TIFFNoRowEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s);
+extern int _TIFFNoStripEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s);
+extern int _TIFFNoTileEncode(TIFF*, uint8* pp, tmsize_t cc, uint16 s);
+extern int _TIFFNoRowDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s);
+extern int _TIFFNoStripDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s);
+extern int _TIFFNoTileDecode(TIFF*, uint8* pp, tmsize_t cc, uint16 s);
+extern void _TIFFNoPostDecode(TIFF* tif, uint8* buf, tmsize_t cc);
+extern int _TIFFNoPreCode(TIFF* tif, uint16 s);
+extern int _TIFFNoSeek(TIFF* tif, uint32 off);
+extern void _TIFFSwab16BitData(TIFF* tif, uint8* buf, tmsize_t cc);
+extern void _TIFFSwab24BitData(TIFF* tif, uint8* buf, tmsize_t cc);
+extern void _TIFFSwab32BitData(TIFF* tif, uint8* buf, tmsize_t cc);
+extern void _TIFFSwab64BitData(TIFF* tif, uint8* buf, tmsize_t cc);
+extern int TIFFFlushData1(TIFF* tif);
+extern int TIFFDefaultDirectory(TIFF* tif);
+extern void _TIFFSetDefaultCompressionState(TIFF* tif);
+extern int _TIFFRewriteField(TIFF *, uint16, TIFFDataType, tmsize_t, void *);
+extern int TIFFSetCompressionScheme(TIFF* tif, int scheme);
+extern int TIFFSetDefaultCompressionState(TIFF* tif);
+extern uint32 _TIFFDefaultStripSize(TIFF* tif, uint32 s);
+extern void _TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th);
+extern int _TIFFDataSize(TIFFDataType type);
+
+extern void _TIFFsetByteArray(void**, void*, uint32);
+extern void _TIFFsetString(char**, char*);
+extern void _TIFFsetShortArray(uint16**, uint16*, uint32);
+extern void _TIFFsetLongArray(uint32**, uint32*, uint32);
+extern void _TIFFsetFloatArray(float**, float*, uint32);
+extern void _TIFFsetDoubleArray(double**, double*, uint32);
+
+extern void _TIFFprintAscii(FILE*, const char*);
+extern void _TIFFprintAsciiTag(FILE*, const char*, const char*);
+
+extern TIFFErrorHandler _TIFFwarningHandler;
+extern TIFFErrorHandler _TIFFerrorHandler;
+extern TIFFErrorHandlerExt _TIFFwarningHandlerExt;
+extern TIFFErrorHandlerExt _TIFFerrorHandlerExt;
+
+extern uint32 _TIFFMultiply32(TIFF*, uint32, uint32, const char*);
+extern uint64 _TIFFMultiply64(TIFF*, uint64, uint64, const char*);
+extern void* _TIFFCheckMalloc(TIFF*, tmsize_t, tmsize_t, const char*);
+extern void* _TIFFCheckRealloc(TIFF*, void*, tmsize_t, tmsize_t, const char*);
+
+extern double _TIFFUInt64ToDouble(uint64);
+extern float _TIFFUInt64ToFloat(uint64);
+
+extern int TIFFInitDumpMode(TIFF*, int);
+#ifdef PACKBITS_SUPPORT
+extern int TIFFInitPackBits(TIFF*, int);
+#endif
+#ifdef CCITT_SUPPORT
+extern int TIFFInitCCITTRLE(TIFF*, int), TIFFInitCCITTRLEW(TIFF*, int);
+extern int TIFFInitCCITTFax3(TIFF*, int), TIFFInitCCITTFax4(TIFF*, int);
+#endif
+#ifdef THUNDER_SUPPORT
+extern int TIFFInitThunderScan(TIFF*, int);
+#endif
+#ifdef NEXT_SUPPORT
+extern int TIFFInitNeXT(TIFF*, int);
+#endif
+#ifdef LZW_SUPPORT
+extern int TIFFInitLZW(TIFF*, int);
+#endif
+#ifdef OJPEG_SUPPORT
+extern int TIFFInitOJPEG(TIFF*, int);
+#endif
+#ifdef JPEG_SUPPORT
+extern int TIFFInitJPEG(TIFF*, int);
+#endif
+#ifdef JBIG_SUPPORT
+extern int TIFFInitJBIG(TIFF*, int);
+#endif
+#ifdef ZIP_SUPPORT
+extern int TIFFInitZIP(TIFF*, int);
+#endif
+#ifdef PIXARLOG_SUPPORT
+extern int TIFFInitPixarLog(TIFF*, int);
+#endif
+#ifdef LOGLUV_SUPPORT
+extern int TIFFInitSGILog(TIFF*, int);
+#endif
+#ifdef LZMA_SUPPORT
+extern int TIFFInitLZMA(TIFF*, int);
+#endif
+#ifdef VMS
+extern const TIFFCodec _TIFFBuiltinCODECS[];
+#else
+extern TIFFCodec _TIFFBuiltinCODECS[];
+#endif
+
+#if defined(__cplusplus)
+}
+#endif
+#endif /* _TIFFIOP_ */
+
+/* vim: set ts=8 sts=8 sw=8 noet: */
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 8
+ * fill-column: 78
+ * End:
+ */