Logo Search packages:      
Sourcecode: qt4-x11 version File versions  Download package

tiffiop.h

/* $Id: tiffiop.h,v 1.46 2006/03/16 12:22:27 dron 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.
 */
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          0x0003      /* natural bit fill order for machine */
#define     TIFF_DIRTYHEADER  0x0004      /* header must be written on close */
#define     TIFF_DIRTYDIRECT  0x0008      /* current directory must be written */
#define     TIFF_BUFFERSETUP  0x0010      /* data buffers setup */
#define     TIFF_CODERSETUP         0x0020      /* encoder/decoder setup done */
#define     TIFF_BEENWRITING  0x0040      /* written 1+ scanlines to file */
#define     TIFF_SWAB         0x0080      /* byte swap file information */
#define     TIFF_NOBITREV           0x0100      /* inhibit bit reversal logic */
#define     TIFF_MYBUFFER           0x0200      /* my raw data buffer; free on close */
#define     TIFF_ISTILED            0x0400      /* file is tile, not strip- based */
#define     TIFF_MAPPED       0x0800      /* file is mapped into memory */
#define     TIFF_POSTENCODE         0x1000      /* need call to postencode routine */
#define     TIFF_INSUBIFD           0x2000      /* currently writing a subifd */
#define     TIFF_UPSAMPLED          0x4000      /* library is doing data up-sampling */ 
#define     TIFF_STRIPCHOP          0x8000      /* enable strip chopping support */
#define     TIFF_HEADERONLY         0x10000     /* read header only, do not process */
                              /* the first directory */
      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 */
      uint16            tif_dirnumber;  /* number of already seen directories */
      TIFFDirectory     tif_dir;    /* internal rep of current directory */
      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) */
      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      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: */

Generated by  Doxygen 1.6.0   Back to index