/* $Id: tiffiop.h,v 1.51.2.1 2009-01-06 19:08:09 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 "tif_config.h" | |
#ifdef HAVE_FCNTL_H | |
# include <fcntl.h> | |
#endif | |
#ifdef HAVE_SYS_TYPES_H | |
#if !defined(Q_OS_WINCE) | |
# include <sys/types.h> | |
#else | |
# include <windows.h> | |
# include <types.h> | |
#endif | |
#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. | |
*/ | |
typedef TIFF_INT64_T int64; | |
typedef TIFF_UINT64_T uint64; | |
#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: */ |