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Diffstat (limited to 'tiff/libtiff/tiffiop.h')
| -rwxr-xr-x | tiff/libtiff/tiffiop.h | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/tiff/libtiff/tiffiop.h b/tiff/libtiff/tiffiop.h new file mode 100755 index 0000000..806ad55 --- /dev/null +++ b/tiff/libtiff/tiffiop.h @@ -0,0 +1,367 @@ +/* $Id: tiffiop.h,v 1.84 2012-05-30 01:50:17 fwarmerdam 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 + +#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 */ + tfd_t 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])) + +#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 *, ttag_t, 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: + */ |