| /* |
| * 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. |
| */ |
| |
| /* |
| * TIFF Library. |
| */ |
| #include "tiffiop.h" |
| |
| /* |
| * Dummy functions to fill the omitted client procedures. |
| */ |
| static int |
| _tiffDummyMapProc(thandle_t fd, void** pbase, toff_t* psize) |
| { |
| (void) fd; (void) pbase; (void) psize; |
| return (0); |
| } |
| |
| static void |
| _tiffDummyUnmapProc(thandle_t fd, void* base, toff_t size) |
| { |
| (void) fd; (void) base; (void) size; |
| } |
| |
| int |
| _TIFFgetMode(const char* mode, const char* module) |
| { |
| int m = -1; |
| |
| switch (mode[0]) { |
| case 'r': |
| m = O_RDONLY; |
| if (mode[1] == '+') |
| m = O_RDWR; |
| break; |
| case 'w': |
| case 'a': |
| m = O_RDWR|O_CREAT; |
| if (mode[0] == 'w') |
| m |= O_TRUNC; |
| break; |
| default: |
| TIFFErrorExt(0, module, "\"%s\": Bad mode", mode); |
| break; |
| } |
| return (m); |
| } |
| |
| TIFF* |
| TIFFClientOpen( |
| const char* name, const char* mode, |
| thandle_t clientdata, |
| TIFFReadWriteProc readproc, |
| TIFFReadWriteProc writeproc, |
| TIFFSeekProc seekproc, |
| TIFFCloseProc closeproc, |
| TIFFSizeProc sizeproc, |
| TIFFMapFileProc mapproc, |
| TIFFUnmapFileProc unmapproc |
| ) |
| { |
| static const char module[] = "TIFFClientOpen"; |
| TIFF *tif; |
| int m; |
| const char* cp; |
| |
| /* The following are configuration checks. They should be redundant, but should not |
| * compile to any actual code in an optimised release build anyway. If any of them |
| * fail, (makefile-based or other) configuration is not correct */ |
| assert(sizeof(uint8)==1); |
| assert(sizeof(int8)==1); |
| assert(sizeof(uint16)==2); |
| assert(sizeof(int16)==2); |
| assert(sizeof(uint32)==4); |
| assert(sizeof(int32)==4); |
| assert(sizeof(uint64)==8); |
| assert(sizeof(int64)==8); |
| assert(sizeof(tmsize_t)==sizeof(void*)); |
| { |
| union{ |
| uint8 a8[2]; |
| uint16 a16; |
| } n; |
| n.a8[0]=1; |
| n.a8[1]=0; |
| (void)n; |
| #ifdef WORDS_BIGENDIAN |
| assert(n.a16==256); |
| #else |
| assert(n.a16==1); |
| #endif |
| } |
| |
| m = _TIFFgetMode(mode, module); |
| if (m == -1) |
| goto bad2; |
| tif = (TIFF *)_TIFFmalloc((tmsize_t)(sizeof (TIFF) + strlen(name) + 1)); |
| if (tif == NULL) { |
| TIFFErrorExt(clientdata, module, "%s: Out of memory (TIFF structure)", name); |
| goto bad2; |
| } |
| _TIFFmemset(tif, 0, sizeof (*tif)); |
| tif->tif_name = (char *)tif + sizeof (TIFF); |
| strcpy(tif->tif_name, name); |
| tif->tif_mode = m &~ (O_CREAT|O_TRUNC); |
| tif->tif_curdir = (uint16) -1; /* non-existent directory */ |
| tif->tif_curoff = 0; |
| tif->tif_curstrip = (uint32) -1; /* invalid strip */ |
| tif->tif_row = (uint32) -1; /* read/write pre-increment */ |
| tif->tif_clientdata = clientdata; |
| if (!readproc || !writeproc || !seekproc || !closeproc || !sizeproc) { |
| TIFFErrorExt(clientdata, module, |
| "One of the client procedures is NULL pointer."); |
| _TIFFfree(tif); |
| goto bad2; |
| } |
| tif->tif_readproc = readproc; |
| tif->tif_writeproc = writeproc; |
| tif->tif_seekproc = seekproc; |
| tif->tif_closeproc = closeproc; |
| tif->tif_sizeproc = sizeproc; |
| if (mapproc) |
| tif->tif_mapproc = mapproc; |
| else |
| tif->tif_mapproc = _tiffDummyMapProc; |
| if (unmapproc) |
| tif->tif_unmapproc = unmapproc; |
| else |
| tif->tif_unmapproc = _tiffDummyUnmapProc; |
| _TIFFSetDefaultCompressionState(tif); /* setup default state */ |
| /* |
| * Default is to return data MSB2LSB and enable the |
| * use of memory-mapped files and strip chopping when |
| * a file is opened read-only. |
| */ |
| tif->tif_flags = FILLORDER_MSB2LSB; |
| if (m == O_RDONLY ) |
| tif->tif_flags |= TIFF_MAPPED; |
| |
| #ifdef STRIPCHOP_DEFAULT |
| if (m == O_RDONLY || m == O_RDWR) |
| tif->tif_flags |= STRIPCHOP_DEFAULT; |
| #endif |
| |
| /* |
| * Process library-specific flags in the open mode string. |
| * The following flags may be used to control intrinsic library |
| * behavior that may or may not be desirable (usually for |
| * compatibility with some application that claims to support |
| * TIFF but only supports some brain dead idea of what the |
| * vendor thinks TIFF is): |
| * |
| * 'l' use little-endian byte order for creating a file |
| * 'b' use big-endian byte order for creating a file |
| * 'L' read/write information using LSB2MSB bit order |
| * 'B' read/write information using MSB2LSB bit order |
| * 'H' read/write information using host bit order |
| * 'M' enable use of memory-mapped files when supported |
| * 'm' disable use of memory-mapped files |
| * 'C' enable strip chopping support when reading |
| * 'c' disable strip chopping support |
| * 'h' read TIFF header only, do not load the first IFD |
| * '4' ClassicTIFF for creating a file (default) |
| * '8' BigTIFF for creating a file |
| * 'D' enable use of deferred strip/tile offset/bytecount array loading. |
| * 'O' on-demand loading of values instead of whole array loading (implies D) |
| * |
| * The use of the 'l' and 'b' flags is strongly discouraged. |
| * These flags are provided solely because numerous vendors, |
| * typically on the PC, do not correctly support TIFF; they |
| * only support the Intel little-endian byte order. This |
| * support is not configured by default because it supports |
| * the violation of the TIFF spec that says that readers *MUST* |
| * support both byte orders. It is strongly recommended that |
| * you not use this feature except to deal with busted apps |
| * that write invalid TIFF. And even in those cases you should |
| * bang on the vendors to fix their software. |
| * |
| * The 'L', 'B', and 'H' flags are intended for applications |
| * that can optimize operations on data by using a particular |
| * bit order. By default the library returns data in MSB2LSB |
| * bit order for compatibility with older versions of this |
| * library. Returning data in the bit order of the native CPU |
| * makes the most sense but also requires applications to check |
| * the value of the FillOrder tag; something they probably do |
| * not do right now. |
| * |
| * The 'M' and 'm' flags are provided because some virtual memory |
| * systems exhibit poor behavior when large images are mapped. |
| * These options permit clients to control the use of memory-mapped |
| * files on a per-file basis. |
| * |
| * The 'C' and 'c' flags are provided because the library support |
| * for chopping up large strips into multiple smaller strips is not |
| * application-transparent and as such can cause problems. The 'c' |
| * option permits applications that only want to look at the tags, |
| * for example, to get the unadulterated TIFF tag information. |
| */ |
| for (cp = mode; *cp; cp++) |
| switch (*cp) { |
| case 'b': |
| #ifndef WORDS_BIGENDIAN |
| if (m&O_CREAT) |
| tif->tif_flags |= TIFF_SWAB; |
| #endif |
| break; |
| case 'l': |
| #ifdef WORDS_BIGENDIAN |
| if ((m&O_CREAT)) |
| tif->tif_flags |= TIFF_SWAB; |
| #endif |
| break; |
| case 'B': |
| tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | |
| FILLORDER_MSB2LSB; |
| break; |
| case 'L': |
| tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | |
| FILLORDER_LSB2MSB; |
| break; |
| case 'H': |
| tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | |
| HOST_FILLORDER; |
| break; |
| case 'M': |
| if (m == O_RDONLY) |
| tif->tif_flags |= TIFF_MAPPED; |
| break; |
| case 'm': |
| if (m == O_RDONLY) |
| tif->tif_flags &= ~TIFF_MAPPED; |
| break; |
| case 'C': |
| if (m == O_RDONLY) |
| tif->tif_flags |= TIFF_STRIPCHOP; |
| break; |
| case 'c': |
| if (m == O_RDONLY) |
| tif->tif_flags &= ~TIFF_STRIPCHOP; |
| break; |
| case 'h': |
| tif->tif_flags |= TIFF_HEADERONLY; |
| break; |
| case '8': |
| if (m&O_CREAT) |
| tif->tif_flags |= TIFF_BIGTIFF; |
| break; |
| case 'D': |
| tif->tif_flags |= TIFF_DEFERSTRILELOAD; |
| break; |
| case 'O': |
| if( m == O_RDONLY ) |
| tif->tif_flags |= (TIFF_LAZYSTRILELOAD | TIFF_DEFERSTRILELOAD); |
| break; |
| } |
| |
| #ifdef DEFER_STRILE_LOAD |
| /* Compatibility with old DEFER_STRILE_LOAD compilation flag */ |
| /* Probably unneeded, since to the best of my knowledge (E. Rouault) */ |
| /* GDAL was the only user of this, and will now use the new 'D' flag */ |
| tif->tif_flags |= TIFF_DEFERSTRILELOAD; |
| #endif |
| |
| /* |
| * Read in TIFF header. |
| */ |
| if ((m & O_TRUNC) || |
| !ReadOK(tif, &tif->tif_header, sizeof (TIFFHeaderClassic))) { |
| if (tif->tif_mode == O_RDONLY) { |
| TIFFErrorExt(tif->tif_clientdata, name, |
| "Cannot read TIFF header"); |
| goto bad; |
| } |
| /* |
| * Setup header and write. |
| */ |
| #ifdef WORDS_BIGENDIAN |
| tif->tif_header.common.tiff_magic = (tif->tif_flags & TIFF_SWAB) |
| ? TIFF_LITTLEENDIAN : TIFF_BIGENDIAN; |
| #else |
| tif->tif_header.common.tiff_magic = (tif->tif_flags & TIFF_SWAB) |
| ? TIFF_BIGENDIAN : TIFF_LITTLEENDIAN; |
| #endif |
| if (!(tif->tif_flags&TIFF_BIGTIFF)) |
| { |
| tif->tif_header.common.tiff_version = TIFF_VERSION_CLASSIC; |
| tif->tif_header.classic.tiff_diroff = 0; |
| if (tif->tif_flags & TIFF_SWAB) |
| TIFFSwabShort(&tif->tif_header.common.tiff_version); |
| tif->tif_header_size = sizeof(TIFFHeaderClassic); |
| } |
| else |
| { |
| tif->tif_header.common.tiff_version = TIFF_VERSION_BIG; |
| tif->tif_header.big.tiff_offsetsize = 8; |
| tif->tif_header.big.tiff_unused = 0; |
| tif->tif_header.big.tiff_diroff = 0; |
| if (tif->tif_flags & TIFF_SWAB) |
| { |
| TIFFSwabShort(&tif->tif_header.common.tiff_version); |
| TIFFSwabShort(&tif->tif_header.big.tiff_offsetsize); |
| } |
| tif->tif_header_size = sizeof (TIFFHeaderBig); |
| } |
| /* |
| * The doc for "fopen" for some STD_C_LIBs says that if you |
| * open a file for modify ("+"), then you must fseek (or |
| * fflush?) between any freads and fwrites. This is not |
| * necessary on most systems, but has been shown to be needed |
| * on Solaris. |
| */ |
| TIFFSeekFile( tif, 0, SEEK_SET ); |
| if (!WriteOK(tif, &tif->tif_header, (tmsize_t)(tif->tif_header_size))) { |
| TIFFErrorExt(tif->tif_clientdata, name, |
| "Error writing TIFF header"); |
| goto bad; |
| } |
| /* |
| * Setup the byte order handling. |
| */ |
| if (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN) { |
| #ifndef WORDS_BIGENDIAN |
| tif->tif_flags |= TIFF_SWAB; |
| #endif |
| } else { |
| #ifdef WORDS_BIGENDIAN |
| tif->tif_flags |= TIFF_SWAB; |
| #endif |
| } |
| /* |
| * Setup default directory. |
| */ |
| if (!TIFFDefaultDirectory(tif)) |
| goto bad; |
| tif->tif_diroff = 0; |
| tif->tif_dirlist = NULL; |
| tif->tif_dirlistsize = 0; |
| tif->tif_dirnumber = 0; |
| return (tif); |
| } |
| /* |
| * Setup the byte order handling. |
| */ |
| if (tif->tif_header.common.tiff_magic != TIFF_BIGENDIAN && |
| tif->tif_header.common.tiff_magic != TIFF_LITTLEENDIAN |
| #if MDI_SUPPORT |
| && |
| #if HOST_BIGENDIAN |
| tif->tif_header.common.tiff_magic != MDI_BIGENDIAN |
| #else |
| tif->tif_header.common.tiff_magic != MDI_LITTLEENDIAN |
| #endif |
| ) { |
| TIFFErrorExt(tif->tif_clientdata, name, |
| "Not a TIFF or MDI file, bad magic number %d (0x%x)", |
| #else |
| ) { |
| TIFFErrorExt(tif->tif_clientdata, name, |
| "Not a TIFF file, bad magic number %d (0x%x)", |
| #endif |
| tif->tif_header.common.tiff_magic, |
| tif->tif_header.common.tiff_magic); |
| goto bad; |
| } |
| if (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN) { |
| #ifndef WORDS_BIGENDIAN |
| tif->tif_flags |= TIFF_SWAB; |
| #endif |
| } else { |
| #ifdef WORDS_BIGENDIAN |
| tif->tif_flags |= TIFF_SWAB; |
| #endif |
| } |
| if (tif->tif_flags & TIFF_SWAB) |
| TIFFSwabShort(&tif->tif_header.common.tiff_version); |
| if ((tif->tif_header.common.tiff_version != TIFF_VERSION_CLASSIC)&& |
| (tif->tif_header.common.tiff_version != TIFF_VERSION_BIG)) { |
| TIFFErrorExt(tif->tif_clientdata, name, |
| "Not a TIFF file, bad version number %d (0x%x)", |
| tif->tif_header.common.tiff_version, |
| tif->tif_header.common.tiff_version); |
| goto bad; |
| } |
| if (tif->tif_header.common.tiff_version == TIFF_VERSION_CLASSIC) |
| { |
| if (tif->tif_flags & TIFF_SWAB) |
| TIFFSwabLong(&tif->tif_header.classic.tiff_diroff); |
| tif->tif_header_size = sizeof(TIFFHeaderClassic); |
| } |
| else |
| { |
| if (!ReadOK(tif, ((uint8*)(&tif->tif_header) + sizeof(TIFFHeaderClassic)), (sizeof(TIFFHeaderBig)-sizeof(TIFFHeaderClassic)))) |
| { |
| TIFFErrorExt(tif->tif_clientdata, name, |
| "Cannot read TIFF header"); |
| goto bad; |
| } |
| if (tif->tif_flags & TIFF_SWAB) |
| { |
| TIFFSwabShort(&tif->tif_header.big.tiff_offsetsize); |
| TIFFSwabLong8(&tif->tif_header.big.tiff_diroff); |
| } |
| if (tif->tif_header.big.tiff_offsetsize != 8) |
| { |
| TIFFErrorExt(tif->tif_clientdata, name, |
| "Not a TIFF file, bad BigTIFF offsetsize %d (0x%x)", |
| tif->tif_header.big.tiff_offsetsize, |
| tif->tif_header.big.tiff_offsetsize); |
| goto bad; |
| } |
| if (tif->tif_header.big.tiff_unused != 0) |
| { |
| TIFFErrorExt(tif->tif_clientdata, name, |
| "Not a TIFF file, bad BigTIFF unused %d (0x%x)", |
| tif->tif_header.big.tiff_unused, |
| tif->tif_header.big.tiff_unused); |
| goto bad; |
| } |
| tif->tif_header_size = sizeof(TIFFHeaderBig); |
| tif->tif_flags |= TIFF_BIGTIFF; |
| } |
| tif->tif_flags |= TIFF_MYBUFFER; |
| tif->tif_rawcp = tif->tif_rawdata = 0; |
| tif->tif_rawdatasize = 0; |
| tif->tif_rawdataoff = 0; |
| tif->tif_rawdataloaded = 0; |
| |
| switch (mode[0]) { |
| case 'r': |
| if (!(tif->tif_flags&TIFF_BIGTIFF)) |
| tif->tif_nextdiroff = tif->tif_header.classic.tiff_diroff; |
| else |
| tif->tif_nextdiroff = tif->tif_header.big.tiff_diroff; |
| /* |
| * Try to use a memory-mapped file if the client |
| * has not explicitly suppressed usage with the |
| * 'm' flag in the open mode (see above). |
| */ |
| if (tif->tif_flags & TIFF_MAPPED) |
| { |
| toff_t n; |
| if (TIFFMapFileContents(tif,(void**)(&tif->tif_base),&n)) |
| { |
| tif->tif_size=(tmsize_t)n; |
| assert((toff_t)tif->tif_size==n); |
| } |
| else |
| tif->tif_flags &= ~TIFF_MAPPED; |
| } |
| /* |
| * Sometimes we do not want to read the first directory (for example, |
| * it may be broken) and want to proceed to other directories. I this |
| * case we use the TIFF_HEADERONLY flag to open file and return |
| * immediately after reading TIFF header. |
| */ |
| if (tif->tif_flags & TIFF_HEADERONLY) |
| return (tif); |
| |
| /* |
| * Setup initial directory. |
| */ |
| if (TIFFReadDirectory(tif)) { |
| tif->tif_rawcc = (tmsize_t)-1; |
| tif->tif_flags |= TIFF_BUFFERSETUP; |
| return (tif); |
| } |
| break; |
| case 'a': |
| /* |
| * New directories are automatically append |
| * to the end of the directory chain when they |
| * are written out (see TIFFWriteDirectory). |
| */ |
| if (!TIFFDefaultDirectory(tif)) |
| goto bad; |
| return (tif); |
| } |
| bad: |
| tif->tif_mode = O_RDONLY; /* XXX avoid flush */ |
| TIFFCleanup(tif); |
| bad2: |
| return ((TIFF*)0); |
| } |
| |
| /* |
| * Query functions to access private data. |
| */ |
| |
| /* |
| * Return open file's name. |
| */ |
| const char * |
| TIFFFileName(TIFF* tif) |
| { |
| return (tif->tif_name); |
| } |
| |
| /* |
| * Set the file name. |
| */ |
| const char * |
| TIFFSetFileName(TIFF* tif, const char *name) |
| { |
| const char* old_name = tif->tif_name; |
| tif->tif_name = (char *)name; |
| return (old_name); |
| } |
| |
| /* |
| * Return open file's I/O descriptor. |
| */ |
| int |
| TIFFFileno(TIFF* tif) |
| { |
| return (tif->tif_fd); |
| } |
| |
| /* |
| * Set open file's I/O descriptor, and return previous value. |
| */ |
| int |
| TIFFSetFileno(TIFF* tif, int fd) |
| { |
| int old_fd = tif->tif_fd; |
| tif->tif_fd = fd; |
| return old_fd; |
| } |
| |
| /* |
| * Return open file's clientdata. |
| */ |
| thandle_t |
| TIFFClientdata(TIFF* tif) |
| { |
| return (tif->tif_clientdata); |
| } |
| |
| /* |
| * Set open file's clientdata, and return previous value. |
| */ |
| thandle_t |
| TIFFSetClientdata(TIFF* tif, thandle_t newvalue) |
| { |
| thandle_t m = tif->tif_clientdata; |
| tif->tif_clientdata = newvalue; |
| return m; |
| } |
| |
| /* |
| * Return read/write mode. |
| */ |
| int |
| TIFFGetMode(TIFF* tif) |
| { |
| return (tif->tif_mode); |
| } |
| |
| /* |
| * Return read/write mode. |
| */ |
| int |
| TIFFSetMode(TIFF* tif, int mode) |
| { |
| int old_mode = tif->tif_mode; |
| tif->tif_mode = mode; |
| return (old_mode); |
| } |
| |
| /* |
| * Return nonzero if file is organized in |
| * tiles; zero if organized as strips. |
| */ |
| int |
| TIFFIsTiled(TIFF* tif) |
| { |
| return (isTiled(tif)); |
| } |
| |
| /* |
| * Return current row being read/written. |
| */ |
| uint32 |
| TIFFCurrentRow(TIFF* tif) |
| { |
| return (tif->tif_row); |
| } |
| |
| /* |
| * Return index of the current directory. |
| */ |
| uint16 |
| TIFFCurrentDirectory(TIFF* tif) |
| { |
| return (tif->tif_curdir); |
| } |
| |
| /* |
| * Return current strip. |
| */ |
| uint32 |
| TIFFCurrentStrip(TIFF* tif) |
| { |
| return (tif->tif_curstrip); |
| } |
| |
| /* |
| * Return current tile. |
| */ |
| uint32 |
| TIFFCurrentTile(TIFF* tif) |
| { |
| return (tif->tif_curtile); |
| } |
| |
| /* |
| * Return nonzero if the file has byte-swapped data. |
| */ |
| int |
| TIFFIsByteSwapped(TIFF* tif) |
| { |
| return ((tif->tif_flags & TIFF_SWAB) != 0); |
| } |
| |
| /* |
| * Return nonzero if the data is returned up-sampled. |
| */ |
| int |
| TIFFIsUpSampled(TIFF* tif) |
| { |
| return (isUpSampled(tif)); |
| } |
| |
| /* |
| * Return nonzero if the data is returned in MSB-to-LSB bit order. |
| */ |
| int |
| TIFFIsMSB2LSB(TIFF* tif) |
| { |
| return (isFillOrder(tif, FILLORDER_MSB2LSB)); |
| } |
| |
| /* |
| * Return nonzero if given file was written in big-endian order. |
| */ |
| int |
| TIFFIsBigEndian(TIFF* tif) |
| { |
| return (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN); |
| } |
| |
| /* |
| * Return pointer to file read method. |
| */ |
| TIFFReadWriteProc |
| TIFFGetReadProc(TIFF* tif) |
| { |
| return (tif->tif_readproc); |
| } |
| |
| /* |
| * Return pointer to file write method. |
| */ |
| TIFFReadWriteProc |
| TIFFGetWriteProc(TIFF* tif) |
| { |
| return (tif->tif_writeproc); |
| } |
| |
| /* |
| * Return pointer to file seek method. |
| */ |
| TIFFSeekProc |
| TIFFGetSeekProc(TIFF* tif) |
| { |
| return (tif->tif_seekproc); |
| } |
| |
| /* |
| * Return pointer to file close method. |
| */ |
| TIFFCloseProc |
| TIFFGetCloseProc(TIFF* tif) |
| { |
| return (tif->tif_closeproc); |
| } |
| |
| /* |
| * Return pointer to file size requesting method. |
| */ |
| TIFFSizeProc |
| TIFFGetSizeProc(TIFF* tif) |
| { |
| return (tif->tif_sizeproc); |
| } |
| |
| /* |
| * Return pointer to memory mapping method. |
| */ |
| TIFFMapFileProc |
| TIFFGetMapFileProc(TIFF* tif) |
| { |
| return (tif->tif_mapproc); |
| } |
| |
| /* |
| * Return pointer to memory unmapping method. |
| */ |
| TIFFUnmapFileProc |
| TIFFGetUnmapFileProc(TIFF* tif) |
| { |
| return (tif->tif_unmapproc); |
| } |
| |
| /* vim: set ts=8 sts=8 sw=8 noet: */ |
| /* |
| * Local Variables: |
| * mode: c |
| * c-basic-offset: 8 |
| * fill-column: 78 |
| * End: |
| */ |