PBRT
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00001 /* $Id: tiffiop.h,v 1.51.2.6 2010-06-12 02:55:16 bfriesen Exp $ */ 00002 00003 /* 00004 * Copyright (c) 1988-1997 Sam Leffler 00005 * Copyright (c) 1991-1997 Silicon Graphics, Inc. 00006 * 00007 * Permission to use, copy, modify, distribute, and sell this software and 00008 * its documentation for any purpose is hereby granted without fee, provided 00009 * that (i) the above copyright notices and this permission notice appear in 00010 * all copies of the software and related documentation, and (ii) the names of 00011 * Sam Leffler and Silicon Graphics may not be used in any advertising or 00012 * publicity relating to the software without the specific, prior written 00013 * permission of Sam Leffler and Silicon Graphics. 00014 * 00015 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 00016 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 00017 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 00018 * 00019 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR 00020 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, 00021 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 00022 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 00023 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 00024 * OF THIS SOFTWARE. 00025 */ 00026 00027 #ifndef _TIFFIOP_ 00028 #define _TIFFIOP_ 00029 /* 00030 * ``Library-private'' definitions. 00031 */ 00032 00033 #include "tif_config.h" 00034 00035 #ifdef HAVE_FCNTL_H 00036 # include <fcntl.h> 00037 #endif 00038 00039 #ifdef HAVE_SYS_TYPES_H 00040 # include <sys/types.h> 00041 #endif 00042 00043 #ifdef HAVE_STRING_H 00044 # include <string.h> 00045 #endif 00046 00047 #ifdef HAVE_ASSERT_H 00048 # include <assert.h> 00049 #else 00050 # define assert(x) 00051 #endif 00052 00053 #ifdef HAVE_SEARCH_H 00054 # include <search.h> 00055 #else 00056 extern void *lfind(const void *, const void *, size_t *, size_t, 00057 int (*)(const void *, const void *)); 00058 #endif 00059 00060 /* 00061 Libtiff itself does not require a 64-bit type, but bundled TIFF 00062 utilities may use it. 00063 */ 00064 typedef TIFF_INT64_T int64; 00065 typedef TIFF_UINT64_T uint64; 00066 00067 #include "tiffio.h" 00068 #include "tif_dir.h" 00069 00070 #ifndef STRIP_SIZE_DEFAULT 00071 # define STRIP_SIZE_DEFAULT 8192 00072 #endif 00073 00074 #define streq(a,b) (strcmp(a,b) == 0) 00075 00076 #ifndef TRUE 00077 #define TRUE 1 00078 #define FALSE 0 00079 #endif 00080 00081 typedef struct client_info { 00082 struct client_info *next; 00083 void *data; 00084 char *name; 00085 } TIFFClientInfoLink; 00086 00087 /* 00088 * Typedefs for ``method pointers'' used internally. 00089 */ 00090 typedef unsigned char tidataval_t; /* internal image data value type */ 00091 typedef tidataval_t* tidata_t; /* reference to internal image data */ 00092 00093 typedef void (*TIFFVoidMethod)(TIFF*); 00094 typedef int (*TIFFBoolMethod)(TIFF*); 00095 typedef int (*TIFFPreMethod)(TIFF*, tsample_t); 00096 typedef int (*TIFFCodeMethod)(TIFF*, tidata_t, tsize_t, tsample_t); 00097 typedef int (*TIFFSeekMethod)(TIFF*, uint32); 00098 typedef void (*TIFFPostMethod)(TIFF*, tidata_t, tsize_t); 00099 typedef uint32 (*TIFFStripMethod)(TIFF*, uint32); 00100 typedef void (*TIFFTileMethod)(TIFF*, uint32*, uint32*); 00101 00102 struct tiff { 00103 char* tif_name; /* name of open file */ 00104 int tif_fd; /* open file descriptor */ 00105 int tif_mode; /* open mode (O_*) */ 00106 uint32 tif_flags; 00107 #define TIFF_FILLORDER 0x00003 /* natural bit fill order for machine */ 00108 #define TIFF_DIRTYHEADER 0x00004 /* header must be written on close */ 00109 #define TIFF_DIRTYDIRECT 0x00008 /* current directory must be written */ 00110 #define TIFF_BUFFERSETUP 0x00010 /* data buffers setup */ 00111 #define TIFF_CODERSETUP 0x00020 /* encoder/decoder setup done */ 00112 #define TIFF_BEENWRITING 0x00040 /* written 1+ scanlines to file */ 00113 #define TIFF_SWAB 0x00080 /* byte swap file information */ 00114 #define TIFF_NOBITREV 0x00100 /* inhibit bit reversal logic */ 00115 #define TIFF_MYBUFFER 0x00200 /* my raw data buffer; free on close */ 00116 #define TIFF_ISTILED 0x00400 /* file is tile, not strip- based */ 00117 #define TIFF_MAPPED 0x00800 /* file is mapped into memory */ 00118 #define TIFF_POSTENCODE 0x01000 /* need call to postencode routine */ 00119 #define TIFF_INSUBIFD 0x02000 /* currently writing a subifd */ 00120 #define TIFF_UPSAMPLED 0x04000 /* library is doing data up-sampling */ 00121 #define TIFF_STRIPCHOP 0x08000 /* enable strip chopping support */ 00122 #define TIFF_HEADERONLY 0x10000 /* read header only, do not process */ 00123 /* the first directory */ 00124 #define TIFF_NOREADRAW 0x20000 /* skip reading of raw uncompressed */ 00125 /* image data */ 00126 #define TIFF_INCUSTOMIFD 0x40000 /* currently writing a custom IFD */ 00127 toff_t tif_diroff; /* file offset of current directory */ 00128 toff_t tif_nextdiroff; /* file offset of following directory */ 00129 toff_t* tif_dirlist; /* list of offsets to already seen */ 00130 /* directories to prevent IFD looping */ 00131 tsize_t tif_dirlistsize;/* number of entires in offset list */ 00132 uint16 tif_dirnumber; /* number of already seen directories */ 00133 TIFFDirectory tif_dir; /* internal rep of current directory */ 00134 TIFFDirectory tif_customdir; /* custom IFDs are separated from 00135 the main ones */ 00136 TIFFHeader tif_header; /* file's header block */ 00137 const int* tif_typeshift; /* data type shift counts */ 00138 const long* tif_typemask; /* data type masks */ 00139 uint32 tif_row; /* current scanline */ 00140 tdir_t tif_curdir; /* current directory (index) */ 00141 tstrip_t tif_curstrip; /* current strip for read/write */ 00142 toff_t tif_curoff; /* current offset for read/write */ 00143 toff_t tif_dataoff; /* current offset for writing dir */ 00144 /* SubIFD support */ 00145 uint16 tif_nsubifd; /* remaining subifds to write */ 00146 toff_t tif_subifdoff; /* offset for patching SubIFD link */ 00147 /* tiling support */ 00148 uint32 tif_col; /* current column (offset by row too) */ 00149 ttile_t tif_curtile; /* current tile for read/write */ 00150 tsize_t tif_tilesize; /* # of bytes in a tile */ 00151 /* compression scheme hooks */ 00152 int tif_decodestatus; 00153 TIFFBoolMethod tif_setupdecode;/* called once before predecode */ 00154 TIFFPreMethod tif_predecode; /* pre- row/strip/tile decoding */ 00155 TIFFBoolMethod tif_setupencode;/* called once before preencode */ 00156 int tif_encodestatus; 00157 TIFFPreMethod tif_preencode; /* pre- row/strip/tile encoding */ 00158 TIFFBoolMethod tif_postencode; /* post- row/strip/tile encoding */ 00159 TIFFCodeMethod tif_decoderow; /* scanline decoding routine */ 00160 TIFFCodeMethod tif_encoderow; /* scanline encoding routine */ 00161 TIFFCodeMethod tif_decodestrip;/* strip decoding routine */ 00162 TIFFCodeMethod tif_encodestrip;/* strip encoding routine */ 00163 TIFFCodeMethod tif_decodetile; /* tile decoding routine */ 00164 TIFFCodeMethod tif_encodetile; /* tile encoding routine */ 00165 TIFFVoidMethod tif_close; /* cleanup-on-close routine */ 00166 TIFFSeekMethod tif_seek; /* position within a strip routine */ 00167 TIFFVoidMethod tif_cleanup; /* cleanup state routine */ 00168 TIFFStripMethod tif_defstripsize;/* calculate/constrain strip size */ 00169 TIFFTileMethod tif_deftilesize;/* calculate/constrain tile size */ 00170 tidata_t tif_data; /* compression scheme private data */ 00171 /* input/output buffering */ 00172 tsize_t tif_scanlinesize;/* # of bytes in a scanline */ 00173 tsize_t tif_scanlineskew;/* scanline skew for reading strips */ 00174 tidata_t tif_rawdata; /* raw data buffer */ 00175 tsize_t tif_rawdatasize;/* # of bytes in raw data buffer */ 00176 tidata_t tif_rawcp; /* current spot in raw buffer */ 00177 tsize_t tif_rawcc; /* bytes unread from raw buffer */ 00178 /* memory-mapped file support */ 00179 tidata_t tif_base; /* base of mapped file */ 00180 toff_t tif_size; /* size of mapped file region (bytes) 00181 FIXME: it should be tsize_t */ 00182 TIFFMapFileProc tif_mapproc; /* map file method */ 00183 TIFFUnmapFileProc tif_unmapproc;/* unmap file method */ 00184 /* input/output callback methods */ 00185 thandle_t tif_clientdata; /* callback parameter */ 00186 TIFFReadWriteProc tif_readproc; /* read method */ 00187 TIFFReadWriteProc tif_writeproc;/* write method */ 00188 TIFFSeekProc tif_seekproc; /* lseek method */ 00189 TIFFCloseProc tif_closeproc; /* close method */ 00190 TIFFSizeProc tif_sizeproc; /* filesize method */ 00191 /* post-decoding support */ 00192 TIFFPostMethod tif_postdecode; /* post decoding routine */ 00193 /* tag support */ 00194 TIFFFieldInfo** tif_fieldinfo; /* sorted table of registered tags */ 00195 size_t tif_nfields; /* # entries in registered tag table */ 00196 const TIFFFieldInfo *tif_foundfield;/* cached pointer to already found tag */ 00197 TIFFTagMethods tif_tagmethods; /* tag get/set/print routines */ 00198 TIFFClientInfoLink *tif_clientinfo; /* extra client information. */ 00199 }; 00200 00201 #define isPseudoTag(t) (t > 0xffff) /* is tag value normal or pseudo */ 00202 00203 #define isTiled(tif) (((tif)->tif_flags & TIFF_ISTILED) != 0) 00204 #define isMapped(tif) (((tif)->tif_flags & TIFF_MAPPED) != 0) 00205 #define isFillOrder(tif, o) (((tif)->tif_flags & (o)) != 0) 00206 #define isUpSampled(tif) (((tif)->tif_flags & TIFF_UPSAMPLED) != 0) 00207 #define TIFFReadFile(tif, buf, size) \ 00208 ((*(tif)->tif_readproc)((tif)->tif_clientdata,buf,size)) 00209 #define TIFFWriteFile(tif, buf, size) \ 00210 ((*(tif)->tif_writeproc)((tif)->tif_clientdata,buf,size)) 00211 #define TIFFSeekFile(tif, off, whence) \ 00212 ((*(tif)->tif_seekproc)((tif)->tif_clientdata,(toff_t)(off),whence)) 00213 #define TIFFCloseFile(tif) \ 00214 ((*(tif)->tif_closeproc)((tif)->tif_clientdata)) 00215 #define TIFFGetFileSize(tif) \ 00216 ((*(tif)->tif_sizeproc)((tif)->tif_clientdata)) 00217 #define TIFFMapFileContents(tif, paddr, psize) \ 00218 ((*(tif)->tif_mapproc)((tif)->tif_clientdata,paddr,psize)) 00219 #define TIFFUnmapFileContents(tif, addr, size) \ 00220 ((*(tif)->tif_unmapproc)((tif)->tif_clientdata,addr,size)) 00221 00222 /* 00223 * Default Read/Seek/Write definitions. 00224 */ 00225 #ifndef ReadOK 00226 #define ReadOK(tif, buf, size) \ 00227 (TIFFReadFile(tif, (tdata_t) buf, (tsize_t)(size)) == (tsize_t)(size)) 00228 #endif 00229 #ifndef SeekOK 00230 #define SeekOK(tif, off) \ 00231 (TIFFSeekFile(tif, (toff_t) off, SEEK_SET) == (toff_t) off) 00232 #endif 00233 #ifndef WriteOK 00234 #define WriteOK(tif, buf, size) \ 00235 (TIFFWriteFile(tif, (tdata_t) buf, (tsize_t) size) == (tsize_t) size) 00236 #endif 00237 00238 /* NB: the uint32 casts are to silence certain ANSI-C compilers */ 00239 #define TIFFhowmany(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \ 00240 ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \ 00241 0U) 00242 #define TIFFhowmany8(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) 00243 #define TIFFroundup(x, y) (TIFFhowmany(x,y)*(y)) 00244 00245 /* Safe multiply which returns zero if there is an integer overflow */ 00246 #define TIFFSafeMultiply(t,v,m) ((((t)m != (t)0) && (((t)((v*m)/m)) == (t)v)) ? (t)(v*m) : (t)0) 00247 00248 #define TIFFmax(A,B) ((A)>(B)?(A):(B)) 00249 #define TIFFmin(A,B) ((A)<(B)?(A):(B)) 00250 00251 #define TIFFArrayCount(a) (sizeof (a) / sizeof ((a)[0])) 00252 00253 #if defined(__cplusplus) 00254 extern "C" { 00255 #endif 00256 extern int _TIFFgetMode(const char*, const char*); 00257 extern int _TIFFNoRowEncode(TIFF*, tidata_t, tsize_t, tsample_t); 00258 extern int _TIFFNoStripEncode(TIFF*, tidata_t, tsize_t, tsample_t); 00259 extern int _TIFFNoTileEncode(TIFF*, tidata_t, tsize_t, tsample_t); 00260 extern int _TIFFNoRowDecode(TIFF*, tidata_t, tsize_t, tsample_t); 00261 extern int _TIFFNoStripDecode(TIFF*, tidata_t, tsize_t, tsample_t); 00262 extern int _TIFFNoTileDecode(TIFF*, tidata_t, tsize_t, tsample_t); 00263 extern void _TIFFNoPostDecode(TIFF*, tidata_t, tsize_t); 00264 extern int _TIFFNoPreCode (TIFF*, tsample_t); 00265 extern int _TIFFNoSeek(TIFF*, uint32); 00266 extern void _TIFFSwab16BitData(TIFF*, tidata_t, tsize_t); 00267 extern void _TIFFSwab24BitData(TIFF*, tidata_t, tsize_t); 00268 extern void _TIFFSwab32BitData(TIFF*, tidata_t, tsize_t); 00269 extern void _TIFFSwab64BitData(TIFF*, tidata_t, tsize_t); 00270 extern int TIFFFlushData1(TIFF*); 00271 extern int TIFFDefaultDirectory(TIFF*); 00272 extern void _TIFFSetDefaultCompressionState(TIFF*); 00273 extern int TIFFSetCompressionScheme(TIFF*, int); 00274 extern int TIFFSetDefaultCompressionState(TIFF*); 00275 extern uint32 _TIFFDefaultStripSize(TIFF*, uint32); 00276 extern void _TIFFDefaultTileSize(TIFF*, uint32*, uint32*); 00277 extern int _TIFFDataSize(TIFFDataType); 00278 00279 extern void _TIFFsetByteArray(void**, void*, uint32); 00280 extern void _TIFFsetString(char**, char*); 00281 extern void _TIFFsetShortArray(uint16**, uint16*, uint32); 00282 extern void _TIFFsetLongArray(uint32**, uint32*, uint32); 00283 extern void _TIFFsetFloatArray(float**, float*, uint32); 00284 extern void _TIFFsetDoubleArray(double**, double*, uint32); 00285 00286 extern void _TIFFprintAscii(FILE*, const char*); 00287 extern void _TIFFprintAsciiTag(FILE*, const char*, const char*); 00288 00289 extern TIFFErrorHandler _TIFFwarningHandler; 00290 extern TIFFErrorHandler _TIFFerrorHandler; 00291 extern TIFFErrorHandlerExt _TIFFwarningHandlerExt; 00292 extern TIFFErrorHandlerExt _TIFFerrorHandlerExt; 00293 00294 extern tdata_t _TIFFCheckMalloc(TIFF*, size_t, size_t, const char*); 00295 extern tdata_t _TIFFCheckRealloc(TIFF*, tdata_t, size_t, size_t, const char*); 00296 00297 extern int TIFFInitDumpMode(TIFF*, int); 00298 #ifdef PACKBITS_SUPPORT 00299 extern int TIFFInitPackBits(TIFF*, int); 00300 #endif 00301 #ifdef CCITT_SUPPORT 00302 extern int TIFFInitCCITTRLE(TIFF*, int), TIFFInitCCITTRLEW(TIFF*, int); 00303 extern int TIFFInitCCITTFax3(TIFF*, int), TIFFInitCCITTFax4(TIFF*, int); 00304 #endif 00305 #ifdef THUNDER_SUPPORT 00306 extern int TIFFInitThunderScan(TIFF*, int); 00307 #endif 00308 #ifdef NEXT_SUPPORT 00309 extern int TIFFInitNeXT(TIFF*, int); 00310 #endif 00311 #ifdef LZW_SUPPORT 00312 extern int TIFFInitLZW(TIFF*, int); 00313 #endif 00314 #ifdef OJPEG_SUPPORT 00315 extern int TIFFInitOJPEG(TIFF*, int); 00316 #endif 00317 #ifdef JPEG_SUPPORT 00318 extern int TIFFInitJPEG(TIFF*, int); 00319 #endif 00320 #ifdef JBIG_SUPPORT 00321 extern int TIFFInitJBIG(TIFF*, int); 00322 #endif 00323 #ifdef ZIP_SUPPORT 00324 extern int TIFFInitZIP(TIFF*, int); 00325 #endif 00326 #ifdef PIXARLOG_SUPPORT 00327 extern int TIFFInitPixarLog(TIFF*, int); 00328 #endif 00329 #ifdef LOGLUV_SUPPORT 00330 extern int TIFFInitSGILog(TIFF*, int); 00331 #endif 00332 #ifdef VMS 00333 extern const TIFFCodec _TIFFBuiltinCODECS[]; 00334 #else 00335 extern TIFFCodec _TIFFBuiltinCODECS[]; 00336 #endif 00337 00338 #if defined(__cplusplus) 00339 } 00340 #endif 00341 #endif /* _TIFFIOP_ */ 00342 00343 /* vim: set ts=8 sts=8 sw=8 noet: */ 00344 /* 00345 * Local Variables: 00346 * mode: c 00347 * c-basic-offset: 8 00348 * fill-column: 78 00349 * End: 00350 */