| /* $Id: tiffiop.h,v 1.27 2009/09/06 13:11:29 drolon 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 "tif_config.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 |
| |
| /* |
| Libtiff itself does not require a 64-bit type, but bundled TIFF |
| utilities may use it. |
| */ |
| #define TIFF_INT64_T signed long long |
| #define TIFF_UINT64_T unsigned long long |
| |
| #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. |
| */ |
| 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*, tsample_t); |
| typedef int (*TIFFCodeMethod)(TIFF*, tidata_t, tsize_t, tsample_t); |
| typedef int (*TIFFSeekMethod)(TIFF*, uint32); |
| typedef void (*TIFFPostMethod)(TIFF*, tidata_t, tsize_t); |
| 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 */ |
| toff_t tif_diroff; /* file offset of current directory */ |
| toff_t tif_nextdiroff; /* file offset of following directory */ |
| toff_t* tif_dirlist; /* list of offsets to already seen */ |
| /* directories to prevent IFD looping */ |
| tsize_t 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 */ |
| TIFFHeader tif_header; /* file's header block */ |
| const int* tif_typeshift; /* data type shift counts */ |
| const long* tif_typemask; /* data type masks */ |
| uint32 tif_row; /* current scanline */ |
| tdir_t tif_curdir; /* current directory (index) */ |
| tstrip_t tif_curstrip; /* current strip for read/write */ |
| toff_t tif_curoff; /* current offset for read/write */ |
| toff_t tif_dataoff; /* current offset for writing dir */ |
| /* SubIFD support */ |
| uint16 tif_nsubifd; /* remaining subifds to write */ |
| toff_t tif_subifdoff; /* offset for patching SubIFD link */ |
| /* tiling support */ |
| uint32 tif_col; /* current column (offset by row too) */ |
| ttile_t tif_curtile; /* current tile for read/write */ |
| tsize_t tif_tilesize; /* # of bytes in a tile */ |
| /* compression scheme hooks */ |
| int tif_decodestatus; |
| 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 */ |
| tidata_t tif_data; /* compression scheme private data */ |
| /* input/output buffering */ |
| tsize_t tif_scanlinesize;/* # of bytes in a scanline */ |
| tsize_t tif_scanlineskew;/* scanline skew for reading strips */ |
| tidata_t tif_rawdata; /* raw data buffer */ |
| tsize_t tif_rawdatasize;/* # of bytes in raw data buffer */ |
| tidata_t tif_rawcp; /* current spot in raw buffer */ |
| tsize_t tif_rawcc; /* bytes unread from raw buffer */ |
| /* memory-mapped file support */ |
| tidata_t tif_base; /* base of mapped file */ |
| toff_t tif_size; /* size of mapped file region (bytes) |
| FIXME: it should be tsize_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 */ |
| TIFFFieldInfo** tif_fieldinfo; /* sorted table of registered tags */ |
| size_t tif_nfields; /* # entries in registered tag table */ |
| const TIFFFieldInfo *tif_foundfield;/* cached pointer to already found tag */ |
| TIFFTagMethods tif_tagmethods; /* tag get/set/print routines */ |
| TIFFClientInfoLink *tif_clientinfo; /* extra client information. */ |
| }; |
| |
| #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,(toff_t)(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, (tdata_t) buf, (tsize_t)(size)) == (tsize_t)(size)) |
| #endif |
| #ifndef SeekOK |
| #define SeekOK(tif, off) \ |
| (TIFFSeekFile(tif, (toff_t) off, SEEK_SET) == (toff_t) off) |
| #endif |
| #ifndef WriteOK |
| #define WriteOK(tif, buf, size) \ |
| (TIFFWriteFile(tif, (tdata_t) buf, (tsize_t) size) == (tsize_t) size) |
| #endif |
| |
| /* NB: the uint32 casts are to silence certain ANSI-C compilers */ |
| #define TIFFhowmany(x, y) ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) |
| #define TIFFhowmany8(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) |
| #define TIFFroundup(x, y) (TIFFhowmany(x,y)*(y)) |
| |
| #define TIFFmax(A,B) ((A)>(B)?(A):(B)) |
| #define TIFFmin(A,B) ((A)<(B)?(A):(B)) |
| |
| #define TIFFArrayCount(a) (sizeof (a) / sizeof ((a)[0])) |
| |
| #if defined(__cplusplus) |
| extern "C" { |
| #endif |
| extern int _TIFFgetMode(const char*, const char*); |
| extern int _TIFFNoRowEncode(TIFF*, tidata_t, tsize_t, tsample_t); |
| extern int _TIFFNoStripEncode(TIFF*, tidata_t, tsize_t, tsample_t); |
| extern int _TIFFNoTileEncode(TIFF*, tidata_t, tsize_t, tsample_t); |
| extern int _TIFFNoRowDecode(TIFF*, tidata_t, tsize_t, tsample_t); |
| extern int _TIFFNoStripDecode(TIFF*, tidata_t, tsize_t, tsample_t); |
| extern int _TIFFNoTileDecode(TIFF*, tidata_t, tsize_t, tsample_t); |
| extern void _TIFFNoPostDecode(TIFF*, tidata_t, tsize_t); |
| extern int _TIFFNoPreCode (TIFF*, tsample_t); |
| extern int _TIFFNoSeek(TIFF*, uint32); |
| extern void _TIFFSwab16BitData(TIFF*, tidata_t, tsize_t); |
| extern void _TIFFSwab24BitData(TIFF*, tidata_t, tsize_t); |
| extern void _TIFFSwab32BitData(TIFF*, tidata_t, tsize_t); |
| extern void _TIFFSwab64BitData(TIFF*, tidata_t, tsize_t); |
| extern int TIFFFlushData1(TIFF*); |
| extern int TIFFDefaultDirectory(TIFF*); |
| extern void _TIFFSetDefaultCompressionState(TIFF*); |
| extern int TIFFSetCompressionScheme(TIFF*, int); |
| extern int TIFFSetDefaultCompressionState(TIFF*); |
| extern uint32 _TIFFDefaultStripSize(TIFF*, uint32); |
| extern void _TIFFDefaultTileSize(TIFF*, uint32*, uint32*); |
| extern int _TIFFDataSize(TIFFDataType); |
| |
| 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 tdata_t _TIFFCheckMalloc(TIFF*, size_t, size_t, const char*); |
| extern tdata_t _TIFFCheckRealloc(TIFF*, tdata_t, size_t, size_t, const char*); |
| |
| 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 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: */ |