1 /* $Id: tiffiop.h,v 1.1 2005-06-17 13:54:52 vp153 Exp $ */
4 * Copyright (c) 1988-1997 Sam Leffler
5 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
7 * Permission to use, copy, modify, distribute, and sell this software and
8 * its documentation for any purpose is hereby granted without fee, provided
9 * that (i) the above copyright notices and this permission notice appear in
10 * all copies of the software and related documentation, and (ii) the names of
11 * Sam Leffler and Silicon Graphics may not be used in any advertising or
12 * publicity relating to the software without the specific, prior written
13 * permission of Sam Leffler and Silicon Graphics.
15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
30 * ``Library-private'' definitions.
33 #include "tif_config.h"
40 # include <sys/types.h>
56 typedef double dblparam_t;
58 #define GLOBALDATA(TYPE,NAME) extern TYPE NAME
60 #define streq(a,b) (strcmp(a,b) == 0)
67 typedef struct client_info {
68 struct client_info *next;
74 * Typedefs for ``method pointers'' used internally.
76 typedef unsigned char tidataval_t; /* internal image data value type */
77 typedef tidataval_t* tidata_t; /* reference to internal image data */
79 typedef void (*TIFFVoidMethod)(TIFF*);
80 typedef int (*TIFFBoolMethod)(TIFF*);
81 typedef int (*TIFFPreMethod)(TIFF*, tsample_t);
82 typedef int (*TIFFCodeMethod)(TIFF*, tidata_t, tsize_t, tsample_t);
83 typedef int (*TIFFSeekMethod)(TIFF*, uint32);
84 typedef void (*TIFFPostMethod)(TIFF*, tidata_t, tsize_t);
85 typedef uint32 (*TIFFStripMethod)(TIFF*, uint32);
86 typedef void (*TIFFTileMethod)(TIFF*, uint32*, uint32*);
89 char* tif_name; /* name of open file */
90 int tif_fd; /* open file descriptor */
91 int tif_mode; /* open mode (O_*) */
93 #define TIFF_FILLORDER 0x0003 /* natural bit fill order for machine */
94 #define TIFF_DIRTYHEADER 0x0004 /* header must be written on close */
95 #define TIFF_DIRTYDIRECT 0x0008 /* current directory must be written */
96 #define TIFF_BUFFERSETUP 0x0010 /* data buffers setup */
97 #define TIFF_CODERSETUP 0x0020 /* encoder/decoder setup done */
98 #define TIFF_BEENWRITING 0x0040 /* written 1+ scanlines to file */
99 #define TIFF_SWAB 0x0080 /* byte swap file information */
100 #define TIFF_NOBITREV 0x0100 /* inhibit bit reversal logic */
101 #define TIFF_MYBUFFER 0x0200 /* my raw data buffer; free on close */
102 #define TIFF_ISTILED 0x0400 /* file is tile, not strip- based */
103 #define TIFF_MAPPED 0x0800 /* file is mapped into memory */
104 #define TIFF_POSTENCODE 0x1000 /* need call to postencode routine */
105 #define TIFF_INSUBIFD 0x2000 /* currently writing a subifd */
106 #define TIFF_UPSAMPLED 0x4000 /* library is doing data up-sampling */
107 #define TIFF_STRIPCHOP 0x8000 /* enable strip chopping support */
108 toff_t tif_diroff; /* file offset of current directory */
109 toff_t tif_nextdiroff; /* file offset of following directory */
110 toff_t* tif_dirlist; /* list of offsets to already seen */
111 /* directories to prevent IFD looping */
112 uint16 tif_dirnumber; /* number of already seen directories */
113 TIFFDirectory tif_dir; /* internal rep of current directory */
114 TIFFHeader tif_header; /* file's header block */
115 const int* tif_typeshift; /* data type shift counts */
116 const long* tif_typemask; /* data type masks */
117 uint32 tif_row; /* current scanline */
118 tdir_t tif_curdir; /* current directory (index) */
119 tstrip_t tif_curstrip; /* current strip for read/write */
120 toff_t tif_curoff; /* current offset for read/write */
121 toff_t tif_dataoff; /* current offset for writing dir */
123 uint16 tif_nsubifd; /* remaining subifds to write */
124 toff_t tif_subifdoff; /* offset for patching SubIFD link */
126 uint32 tif_col; /* current column (offset by row too) */
127 ttile_t tif_curtile; /* current tile for read/write */
128 tsize_t tif_tilesize; /* # of bytes in a tile */
129 /* compression scheme hooks */
130 int tif_decodestatus;
131 TIFFBoolMethod tif_setupdecode;/* called once before predecode */
132 TIFFPreMethod tif_predecode; /* pre- row/strip/tile decoding */
133 TIFFBoolMethod tif_setupencode;/* called once before preencode */
134 int tif_encodestatus;
135 TIFFPreMethod tif_preencode; /* pre- row/strip/tile encoding */
136 TIFFBoolMethod tif_postencode; /* post- row/strip/tile encoding */
137 TIFFCodeMethod tif_decoderow; /* scanline decoding routine */
138 TIFFCodeMethod tif_encoderow; /* scanline encoding routine */
139 TIFFCodeMethod tif_decodestrip;/* strip decoding routine */
140 TIFFCodeMethod tif_encodestrip;/* strip encoding routine */
141 TIFFCodeMethod tif_decodetile; /* tile decoding routine */
142 TIFFCodeMethod tif_encodetile; /* tile encoding routine */
143 TIFFVoidMethod tif_close; /* cleanup-on-close routine */
144 TIFFSeekMethod tif_seek; /* position within a strip routine */
145 TIFFVoidMethod tif_cleanup; /* cleanup state routine */
146 TIFFStripMethod tif_defstripsize;/* calculate/constrain strip size */
147 TIFFTileMethod tif_deftilesize;/* calculate/constrain tile size */
148 tidata_t tif_data; /* compression scheme private data */
149 /* input/output buffering */
150 tsize_t tif_scanlinesize;/* # of bytes in a scanline */
151 tsize_t tif_scanlineskew;/* scanline skew for reading strips */
152 tidata_t tif_rawdata; /* raw data buffer */
153 tsize_t tif_rawdatasize;/* # of bytes in raw data buffer */
154 tidata_t tif_rawcp; /* current spot in raw buffer */
155 tsize_t tif_rawcc; /* bytes unread from raw buffer */
156 /* memory-mapped file support */
157 tidata_t tif_base; /* base of mapped file */
158 toff_t tif_size; /* size of mapped file region (bytes) */
159 TIFFMapFileProc tif_mapproc; /* map file method */
160 TIFFUnmapFileProc tif_unmapproc;/* unmap file method */
161 /* input/output callback methods */
162 thandle_t tif_clientdata; /* callback parameter */
163 TIFFReadWriteProc tif_readproc; /* read method */
164 TIFFReadWriteProc tif_writeproc;/* write method */
165 TIFFSeekProc tif_seekproc; /* lseek method */
166 TIFFCloseProc tif_closeproc; /* close method */
167 TIFFSizeProc tif_sizeproc; /* filesize method */
168 /* post-decoding support */
169 TIFFPostMethod tif_postdecode; /* post decoding routine */
171 TIFFFieldInfo** tif_fieldinfo; /* sorted table of registered tags */
172 int tif_nfields; /* # entries in registered tag table */
173 const TIFFFieldInfo *tif_foundfield;/* cached pointer to already found tag */
174 TIFFTagMethods tif_tagmethods; /* tag get/set/print routines */
175 TIFFClientInfoLink *tif_clientinfo; /* extra client information. */
178 #define isPseudoTag(t) (t > 0xffff) /* is tag value normal or pseudo */
180 #define isTiled(tif) (((tif)->tif_flags & TIFF_ISTILED) != 0)
181 #define isMapped(tif) (((tif)->tif_flags & TIFF_MAPPED) != 0)
182 #define isFillOrder(tif, o) (((tif)->tif_flags & (o)) != 0)
183 #define isUpSampled(tif) (((tif)->tif_flags & TIFF_UPSAMPLED) != 0)
184 #define TIFFReadFile(tif, buf, size) \
185 ((*(tif)->tif_readproc)((tif)->tif_clientdata,buf,size))
186 #define TIFFWriteFile(tif, buf, size) \
187 ((*(tif)->tif_writeproc)((tif)->tif_clientdata,buf,size))
188 #define TIFFSeekFile(tif, off, whence) \
189 ((*(tif)->tif_seekproc)((tif)->tif_clientdata,(toff_t)(off),whence))
190 #define TIFFCloseFile(tif) \
191 ((*(tif)->tif_closeproc)((tif)->tif_clientdata))
192 #define TIFFGetFileSize(tif) \
193 ((*(tif)->tif_sizeproc)((tif)->tif_clientdata))
194 #define TIFFMapFileContents(tif, paddr, psize) \
195 ((*(tif)->tif_mapproc)((tif)->tif_clientdata,paddr,psize))
196 #define TIFFUnmapFileContents(tif, addr, size) \
197 ((*(tif)->tif_unmapproc)((tif)->tif_clientdata,addr,size))
200 * Default Read/Seek/Write definitions.
203 #define ReadOK(tif, buf, size) \
204 (TIFFReadFile(tif, (tdata_t) buf, (tsize_t)(size)) == (tsize_t)(size))
207 #define SeekOK(tif, off) \
208 (TIFFSeekFile(tif, (toff_t) off, SEEK_SET) == (toff_t) off)
211 #define WriteOK(tif, buf, size) \
212 (TIFFWriteFile(tif, (tdata_t) buf, (tsize_t) size) == (tsize_t) size)
215 /* NB: the uint32 casts are to silence certain ANSI-C compilers */
216 #define TIFFhowmany(x, y) ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y)))
217 #define TIFFhowmany8(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3)
218 #define TIFFroundup(x, y) (TIFFhowmany(x,y)*(y))
220 #define TIFFmax(A,B) ((A)>(B)?(A):(B))
221 #define TIFFmin(A,B) ((A)<(B)?(A):(B))
223 #if defined(__cplusplus)
226 extern int _TIFFgetMode(const char*, const char*);
227 extern int _TIFFNoRowEncode(TIFF*, tidata_t, tsize_t, tsample_t);
228 extern int _TIFFNoStripEncode(TIFF*, tidata_t, tsize_t, tsample_t);
229 extern int _TIFFNoTileEncode(TIFF*, tidata_t, tsize_t, tsample_t);
230 extern int _TIFFNoRowDecode(TIFF*, tidata_t, tsize_t, tsample_t);
231 extern int _TIFFNoStripDecode(TIFF*, tidata_t, tsize_t, tsample_t);
232 extern int _TIFFNoTileDecode(TIFF*, tidata_t, tsize_t, tsample_t);
233 extern void _TIFFNoPostDecode(TIFF*, tidata_t, tsize_t);
234 extern int _TIFFNoPreCode (TIFF*, tsample_t);
235 extern int _TIFFNoSeek(TIFF*, uint32);
236 extern void _TIFFSwab16BitData(TIFF*, tidata_t, tsize_t);
237 extern void _TIFFSwab32BitData(TIFF*, tidata_t, tsize_t);
238 extern void _TIFFSwab64BitData(TIFF*, tidata_t, tsize_t);
239 extern int TIFFFlushData1(TIFF*);
240 extern void TIFFFreeDirectory(TIFF*);
241 extern int TIFFDefaultDirectory(TIFF*);
242 extern int TIFFSetCompressionScheme(TIFF*, int);
243 extern int TIFFSetDefaultCompressionState(TIFF*);
244 extern uint32 _TIFFDefaultStripSize(TIFF*, uint32);
245 extern void _TIFFDefaultTileSize(TIFF*, uint32*, uint32*);
247 extern void _TIFFsetByteArray(void**, void*, long);
248 extern void _TIFFsetString(char**, char*);
249 extern void _TIFFsetShortArray(uint16**, uint16*, long);
250 extern void _TIFFsetLongArray(uint32**, uint32*, long);
251 extern void _TIFFsetFloatArray(float**, float*, long);
252 extern void _TIFFsetDoubleArray(double**, double*, long);
254 extern void _TIFFprintAscii(FILE*, const char*);
255 extern void _TIFFprintAsciiTag(FILE*, const char*, const char*);
257 GLOBALDATA(TIFFErrorHandler,_TIFFwarningHandler);
258 GLOBALDATA(TIFFErrorHandler,_TIFFerrorHandler);
260 extern int TIFFInitDumpMode(TIFF*, int);
261 #ifdef PACKBITS_SUPPORT
262 extern int TIFFInitPackBits(TIFF*, int);
265 extern int TIFFInitCCITTRLE(TIFF*, int), TIFFInitCCITTRLEW(TIFF*, int);
266 extern int TIFFInitCCITTFax3(TIFF*, int), TIFFInitCCITTFax4(TIFF*, int);
268 #ifdef THUNDER_SUPPORT
269 extern int TIFFInitThunderScan(TIFF*, int);
272 extern int TIFFInitNeXT(TIFF*, int);
275 extern int TIFFInitLZW(TIFF*, int);
278 extern int TIFFInitOJPEG(TIFF*, int);
281 extern int TIFFInitJPEG(TIFF*, int);
284 extern int TIFFInitJBIG(TIFF*, int);
287 extern int TIFFInitZIP(TIFF*, int);
289 #ifdef PIXARLOG_SUPPORT
290 extern int TIFFInitPixarLog(TIFF*, int);
292 #ifdef LOGLUV_SUPPORT
293 extern int TIFFInitSGILog(TIFF*, int);
296 extern const TIFFCodec _TIFFBuiltinCODECS[];
298 extern TIFFCodec _TIFFBuiltinCODECS[];
301 #if defined(__cplusplus)
304 #endif /* _TIFFIOP_ */
306 /* vim: set ts=8 sts=8 sw=8 noet: */