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| 1 /* $Id: tif_dirread.c,v 1.178 2012-08-19 16:56:34 bfriesen Exp $ */ | |
| 2 | |
| 3 /* | |
| 4 * Copyright (c) 1988-1997 Sam Leffler | |
| 5 * Copyright (c) 1991-1997 Silicon Graphics, Inc. | |
| 6 * | |
| 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. | |
| 14 * | |
| 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. | |
| 18 * | |
| 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 | |
| 24 * OF THIS SOFTWARE. | |
| 25 */ | |
| 26 | |
| 27 /* | |
| 28 * TIFF Library. | |
| 29 * | |
| 30 * Directory Read Support Routines. | |
| 31 */ | |
| 32 | |
| 33 /* Suggested pending improvements: | |
| 34 * - add a field 'ignore' to the TIFFDirEntry structure, to flag status, | |
| 35 * eliminating current use of the IGNORE value, and therefore eliminating | |
| 36 * current irrational behaviour on tags with tag id code 0 | |
| 37 * - add a field 'field_info' to the TIFFDirEntry structure, and set that with | |
| 38 * the pointer to the appropriate TIFFField structure early on in | |
| 39 * TIFFReadDirectory, so as to eliminate current possibly repetitive lookup. | |
| 40 */ | |
| 41 | |
| 42 #include "tiffiop.h" | |
| 43 | |
| 44 #define IGNORE 0 /* tag placeholder used below */ | |
| 45 #define FAILED_FII ((uint32) -1) | |
| 46 | |
| 47 #ifdef HAVE_IEEEFP | |
| 48 # define TIFFCvtIEEEFloatToNative(tif, n, fp) | |
| 49 # define TIFFCvtIEEEDoubleToNative(tif, n, dp) | |
| 50 #else | |
| 51 extern void TIFFCvtIEEEFloatToNative(TIFF*, uint32, float*); | |
| 52 extern void TIFFCvtIEEEDoubleToNative(TIFF*, uint32, double*); | |
| 53 #endif | |
| 54 | |
| 55 enum TIFFReadDirEntryErr { | |
| 56 TIFFReadDirEntryErrOk = 0, | |
| 57 TIFFReadDirEntryErrCount = 1, | |
| 58 TIFFReadDirEntryErrType = 2, | |
| 59 TIFFReadDirEntryErrIo = 3, | |
| 60 TIFFReadDirEntryErrRange = 4, | |
| 61 TIFFReadDirEntryErrPsdif = 5, | |
| 62 TIFFReadDirEntryErrSizesan = 6, | |
| 63 TIFFReadDirEntryErrAlloc = 7, | |
| 64 }; | |
| 65 | |
| 66 static enum TIFFReadDirEntryErr TIFFReadDirEntryByte(TIFF* tif, TIFFDirEntry* di
rentry, uint8* value); | |
| 67 static enum TIFFReadDirEntryErr TIFFReadDirEntryShort(TIFF* tif, TIFFDirEntry* d
irentry, uint16* value); | |
| 68 static enum TIFFReadDirEntryErr TIFFReadDirEntryLong(TIFF* tif, TIFFDirEntry* di
rentry, uint32* value); | |
| 69 static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8(TIFF* tif, TIFFDirEntry* d
irentry, uint64* value); | |
| 70 static enum TIFFReadDirEntryErr TIFFReadDirEntryFloat(TIFF* tif, TIFFDirEntry* d
irentry, float* value); | |
| 71 static enum TIFFReadDirEntryErr TIFFReadDirEntryDouble(TIFF* tif, TIFFDirEntry*
direntry, double* value); | |
| 72 static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8(TIFF* tif, TIFFDirEntry* di
rentry, uint64* value); | |
| 73 | |
| 74 static enum TIFFReadDirEntryErr TIFFReadDirEntryArray(TIFF* tif, TIFFDirEntry* d
irentry, uint32* count, uint32 desttypesize, void** value); | |
| 75 static enum TIFFReadDirEntryErr TIFFReadDirEntryByteArray(TIFF* tif, TIFFDirEntr
y* direntry, uint8** value); | |
| 76 static enum TIFFReadDirEntryErr TIFFReadDirEntrySbyteArray(TIFF* tif, TIFFDirEnt
ry* direntry, int8** value); | |
| 77 static enum TIFFReadDirEntryErr TIFFReadDirEntryShortArray(TIFF* tif, TIFFDirEnt
ry* direntry, uint16** value); | |
| 78 static enum TIFFReadDirEntryErr TIFFReadDirEntrySshortArray(TIFF* tif, TIFFDirEn
try* direntry, int16** value); | |
| 79 static enum TIFFReadDirEntryErr TIFFReadDirEntryLongArray(TIFF* tif, TIFFDirEntr
y* direntry, uint32** value); | |
| 80 static enum TIFFReadDirEntryErr TIFFReadDirEntrySlongArray(TIFF* tif, TIFFDirEnt
ry* direntry, int32** value); | |
| 81 static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8Array(TIFF* tif, TIFFDirEnt
ry* direntry, uint64** value); | |
| 82 static enum TIFFReadDirEntryErr TIFFReadDirEntrySlong8Array(TIFF* tif, TIFFDirEn
try* direntry, int64** value); | |
| 83 static enum TIFFReadDirEntryErr TIFFReadDirEntryFloatArray(TIFF* tif, TIFFDirEnt
ry* direntry, float** value); | |
| 84 static enum TIFFReadDirEntryErr TIFFReadDirEntryDoubleArray(TIFF* tif, TIFFDirEn
try* direntry, double** value); | |
| 85 static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8Array(TIFF* tif, TIFFDirEntr
y* direntry, uint64** value); | |
| 86 | |
| 87 static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleShort(TIFF* tif, TIFFDi
rEntry* direntry, uint16* value); | |
| 88 #if 0 | |
| 89 static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleDouble(TIFF* tif, TIFFD
irEntry* direntry, double* value); | |
| 90 #endif | |
| 91 | |
| 92 static void TIFFReadDirEntryCheckedByte(TIFF* tif, TIFFDirEntry* direntry, uint8
* value); | |
| 93 static void TIFFReadDirEntryCheckedSbyte(TIFF* tif, TIFFDirEntry* direntry, int8
* value); | |
| 94 static void TIFFReadDirEntryCheckedShort(TIFF* tif, TIFFDirEntry* direntry, uint
16* value); | |
| 95 static void TIFFReadDirEntryCheckedSshort(TIFF* tif, TIFFDirEntry* direntry, int
16* value); | |
| 96 static void TIFFReadDirEntryCheckedLong(TIFF* tif, TIFFDirEntry* direntry, uint3
2* value); | |
| 97 static void TIFFReadDirEntryCheckedSlong(TIFF* tif, TIFFDirEntry* direntry, int3
2* value); | |
| 98 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedLong8(TIFF* tif, TIFFDirE
ntry* direntry, uint64* value); | |
| 99 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSlong8(TIFF* tif, TIFFDir
Entry* direntry, int64* value); | |
| 100 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFD
irEntry* direntry, double* value); | |
| 101 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFF
DirEntry* direntry, double* value); | |
| 102 static void TIFFReadDirEntryCheckedFloat(TIFF* tif, TIFFDirEntry* direntry, floa
t* value); | |
| 103 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedDouble(TIFF* tif, TIFFDir
Entry* direntry, double* value); | |
| 104 | |
| 105 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSbyte(int8 value); | |
| 106 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteShort(uint16 value
); | |
| 107 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSshort(int16 value
); | |
| 108 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong(uint32 value)
; | |
| 109 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong(int32 value)
; | |
| 110 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong8(uint64 value
); | |
| 111 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong8(int64 value
); | |
| 112 | |
| 113 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteByte(uint8 value)
; | |
| 114 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteShort(uint16 valu
e); | |
| 115 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSshort(int16 valu
e); | |
| 116 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong(uint32 value
); | |
| 117 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong(int32 value
); | |
| 118 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong8(uint64 valu
e); | |
| 119 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong8(int64 valu
e); | |
| 120 | |
| 121 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSbyte(int8 value)
; | |
| 122 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSshort(int16 valu
e); | |
| 123 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong(uint32 value
); | |
| 124 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong(int32 value
); | |
| 125 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong8(uint64 valu
e); | |
| 126 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong8(int64 valu
e); | |
| 127 | |
| 128 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortShort(uint16 val
ue); | |
| 129 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong(uint32 valu
e); | |
| 130 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong(int32 valu
e); | |
| 131 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong8(uint64 val
ue); | |
| 132 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong8(int64 val
ue); | |
| 133 | |
| 134 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSbyte(int8 value); | |
| 135 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSshort(int16 value
); | |
| 136 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong(int32 value)
; | |
| 137 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongLong8(uint64 value
); | |
| 138 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong8(int64 value
); | |
| 139 | |
| 140 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongLong(uint32 value
); | |
| 141 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongLong8(uint64 valu
e); | |
| 142 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongSlong8(int64 valu
e); | |
| 143 | |
| 144 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Sbyte(int8 value)
; | |
| 145 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Sshort(int16 valu
e); | |
| 146 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Slong(int32 value
); | |
| 147 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Slong8(int64 valu
e); | |
| 148 | |
| 149 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlong8Long8(uint64 val
ue); | |
| 150 | |
| 151 static enum TIFFReadDirEntryErr TIFFReadDirEntryData(TIFF* tif, uint64 offset, t
msize_t size, void* dest); | |
| 152 static void TIFFReadDirEntryOutputErr(TIFF* tif, enum TIFFReadDirEntryErr err, c
onst char* module, const char* tagname, int recover); | |
| 153 | |
| 154 static void TIFFReadDirectoryCheckOrder(TIFF* tif, TIFFDirEntry* dir, uint16 dir
count); | |
| 155 static TIFFDirEntry* TIFFReadDirectoryFindEntry(TIFF* tif, TIFFDirEntry* dir, ui
nt16 dircount, uint16 tagid); | |
| 156 static void TIFFReadDirectoryFindFieldInfo(TIFF* tif, uint16 tagid, uint32* fii)
; | |
| 157 | |
| 158 static int EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount
); | |
| 159 static void MissingRequired(TIFF*, const char*); | |
| 160 static int TIFFCheckDirOffset(TIFF* tif, uint64 diroff); | |
| 161 static int CheckDirCount(TIFF*, TIFFDirEntry*, uint32); | |
| 162 static uint16 TIFFFetchDirectory(TIFF* tif, uint64 diroff, TIFFDirEntry** pdir,
uint64* nextdiroff); | |
| 163 static int TIFFFetchNormalTag(TIFF*, TIFFDirEntry*, int recover); | |
| 164 static int TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, uint32 nstrips, uin
t64** lpp); | |
| 165 static int TIFFFetchSubjectDistance(TIFF*, TIFFDirEntry*); | |
| 166 static void ChopUpSingleUncompressedStrip(TIFF*); | |
| 167 static uint64 TIFFReadUInt64(const uint8 *value); | |
| 168 | |
| 169 typedef union _UInt64Aligned_t | |
| 170 { | |
| 171 double d; | |
| 172 uint64 l; | |
| 173 uint32 i[2]; | |
| 174 uint16 s[4]; | |
| 175 uint8 c[8]; | |
| 176 } UInt64Aligned_t; | |
| 177 | |
| 178 /* | |
| 179 Unaligned safe copy of a uint64 value from an octet array. | |
| 180 */ | |
| 181 static uint64 TIFFReadUInt64(const uint8 *value) | |
| 182 { | |
| 183 UInt64Aligned_t result; | |
| 184 | |
| 185 result.c[0]=value[0]; | |
| 186 result.c[1]=value[1]; | |
| 187 result.c[2]=value[2]; | |
| 188 result.c[3]=value[3]; | |
| 189 result.c[4]=value[4]; | |
| 190 result.c[5]=value[5]; | |
| 191 result.c[6]=value[6]; | |
| 192 result.c[7]=value[7]; | |
| 193 | |
| 194 return result.l; | |
| 195 } | |
| 196 | |
| 197 static enum TIFFReadDirEntryErr TIFFReadDirEntryByte(TIFF* tif, TIFFDirEntry* di
rentry, uint8* value) | |
| 198 { | |
| 199 enum TIFFReadDirEntryErr err; | |
| 200 if (direntry->tdir_count!=1) | |
| 201 return(TIFFReadDirEntryErrCount); | |
| 202 switch (direntry->tdir_type) | |
| 203 { | |
| 204 case TIFF_BYTE: | |
| 205 TIFFReadDirEntryCheckedByte(tif,direntry,value); | |
| 206 return(TIFFReadDirEntryErrOk); | |
| 207 case TIFF_SBYTE: | |
| 208 { | |
| 209 int8 m; | |
| 210 TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); | |
| 211 err=TIFFReadDirEntryCheckRangeByteSbyte(m); | |
| 212 if (err!=TIFFReadDirEntryErrOk) | |
| 213 return(err); | |
| 214 *value=(uint8)m; | |
| 215 return(TIFFReadDirEntryErrOk); | |
| 216 } | |
| 217 case TIFF_SHORT: | |
| 218 { | |
| 219 uint16 m; | |
| 220 TIFFReadDirEntryCheckedShort(tif,direntry,&m); | |
| 221 err=TIFFReadDirEntryCheckRangeByteShort(m); | |
| 222 if (err!=TIFFReadDirEntryErrOk) | |
| 223 return(err); | |
| 224 *value=(uint8)m; | |
| 225 return(TIFFReadDirEntryErrOk); | |
| 226 } | |
| 227 case TIFF_SSHORT: | |
| 228 { | |
| 229 int16 m; | |
| 230 TIFFReadDirEntryCheckedSshort(tif,direntry,&m); | |
| 231 err=TIFFReadDirEntryCheckRangeByteSshort(m); | |
| 232 if (err!=TIFFReadDirEntryErrOk) | |
| 233 return(err); | |
| 234 *value=(uint8)m; | |
| 235 return(TIFFReadDirEntryErrOk); | |
| 236 } | |
| 237 case TIFF_LONG: | |
| 238 { | |
| 239 uint32 m; | |
| 240 TIFFReadDirEntryCheckedLong(tif,direntry,&m); | |
| 241 err=TIFFReadDirEntryCheckRangeByteLong(m); | |
| 242 if (err!=TIFFReadDirEntryErrOk) | |
| 243 return(err); | |
| 244 *value=(uint8)m; | |
| 245 return(TIFFReadDirEntryErrOk); | |
| 246 } | |
| 247 case TIFF_SLONG: | |
| 248 { | |
| 249 int32 m; | |
| 250 TIFFReadDirEntryCheckedSlong(tif,direntry,&m); | |
| 251 err=TIFFReadDirEntryCheckRangeByteSlong(m); | |
| 252 if (err!=TIFFReadDirEntryErrOk) | |
| 253 return(err); | |
| 254 *value=(uint8)m; | |
| 255 return(TIFFReadDirEntryErrOk); | |
| 256 } | |
| 257 case TIFF_LONG8: | |
| 258 { | |
| 259 uint64 m; | |
| 260 err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m
); | |
| 261 if (err!=TIFFReadDirEntryErrOk) | |
| 262 return(err); | |
| 263 err=TIFFReadDirEntryCheckRangeByteLong8(m); | |
| 264 if (err!=TIFFReadDirEntryErrOk) | |
| 265 return(err); | |
| 266 *value=(uint8)m; | |
| 267 return(TIFFReadDirEntryErrOk); | |
| 268 } | |
| 269 case TIFF_SLONG8: | |
| 270 { | |
| 271 int64 m; | |
| 272 err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&
m); | |
| 273 if (err!=TIFFReadDirEntryErrOk) | |
| 274 return(err); | |
| 275 err=TIFFReadDirEntryCheckRangeByteSlong8(m); | |
| 276 if (err!=TIFFReadDirEntryErrOk) | |
| 277 return(err); | |
| 278 *value=(uint8)m; | |
| 279 return(TIFFReadDirEntryErrOk); | |
| 280 } | |
| 281 default: | |
| 282 return(TIFFReadDirEntryErrType); | |
| 283 } | |
| 284 } | |
| 285 | |
| 286 static enum TIFFReadDirEntryErr TIFFReadDirEntryShort(TIFF* tif, TIFFDirEntry* d
irentry, uint16* value) | |
| 287 { | |
| 288 enum TIFFReadDirEntryErr err; | |
| 289 if (direntry->tdir_count!=1) | |
| 290 return(TIFFReadDirEntryErrCount); | |
| 291 switch (direntry->tdir_type) | |
| 292 { | |
| 293 case TIFF_BYTE: | |
| 294 { | |
| 295 uint8 m; | |
| 296 TIFFReadDirEntryCheckedByte(tif,direntry,&m); | |
| 297 *value=(uint16)m; | |
| 298 return(TIFFReadDirEntryErrOk); | |
| 299 } | |
| 300 case TIFF_SBYTE: | |
| 301 { | |
| 302 int8 m; | |
| 303 TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); | |
| 304 err=TIFFReadDirEntryCheckRangeShortSbyte(m); | |
| 305 if (err!=TIFFReadDirEntryErrOk) | |
| 306 return(err); | |
| 307 *value=(uint16)m; | |
| 308 return(TIFFReadDirEntryErrOk); | |
| 309 } | |
| 310 case TIFF_SHORT: | |
| 311 TIFFReadDirEntryCheckedShort(tif,direntry,value); | |
| 312 return(TIFFReadDirEntryErrOk); | |
| 313 case TIFF_SSHORT: | |
| 314 { | |
| 315 int16 m; | |
| 316 TIFFReadDirEntryCheckedSshort(tif,direntry,&m); | |
| 317 err=TIFFReadDirEntryCheckRangeShortSshort(m); | |
| 318 if (err!=TIFFReadDirEntryErrOk) | |
| 319 return(err); | |
| 320 *value=(uint16)m; | |
| 321 return(TIFFReadDirEntryErrOk); | |
| 322 } | |
| 323 case TIFF_LONG: | |
| 324 { | |
| 325 uint32 m; | |
| 326 TIFFReadDirEntryCheckedLong(tif,direntry,&m); | |
| 327 err=TIFFReadDirEntryCheckRangeShortLong(m); | |
| 328 if (err!=TIFFReadDirEntryErrOk) | |
| 329 return(err); | |
| 330 *value=(uint16)m; | |
| 331 return(TIFFReadDirEntryErrOk); | |
| 332 } | |
| 333 case TIFF_SLONG: | |
| 334 { | |
| 335 int32 m; | |
| 336 TIFFReadDirEntryCheckedSlong(tif,direntry,&m); | |
| 337 err=TIFFReadDirEntryCheckRangeShortSlong(m); | |
| 338 if (err!=TIFFReadDirEntryErrOk) | |
| 339 return(err); | |
| 340 *value=(uint16)m; | |
| 341 return(TIFFReadDirEntryErrOk); | |
| 342 } | |
| 343 case TIFF_LONG8: | |
| 344 { | |
| 345 uint64 m; | |
| 346 err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m
); | |
| 347 if (err!=TIFFReadDirEntryErrOk) | |
| 348 return(err); | |
| 349 err=TIFFReadDirEntryCheckRangeShortLong8(m); | |
| 350 if (err!=TIFFReadDirEntryErrOk) | |
| 351 return(err); | |
| 352 *value=(uint16)m; | |
| 353 return(TIFFReadDirEntryErrOk); | |
| 354 } | |
| 355 case TIFF_SLONG8: | |
| 356 { | |
| 357 int64 m; | |
| 358 err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&
m); | |
| 359 if (err!=TIFFReadDirEntryErrOk) | |
| 360 return(err); | |
| 361 err=TIFFReadDirEntryCheckRangeShortSlong8(m); | |
| 362 if (err!=TIFFReadDirEntryErrOk) | |
| 363 return(err); | |
| 364 *value=(uint16)m; | |
| 365 return(TIFFReadDirEntryErrOk); | |
| 366 } | |
| 367 default: | |
| 368 return(TIFFReadDirEntryErrType); | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 static enum TIFFReadDirEntryErr TIFFReadDirEntryLong(TIFF* tif, TIFFDirEntry* di
rentry, uint32* value) | |
| 373 { | |
| 374 enum TIFFReadDirEntryErr err; | |
| 375 if (direntry->tdir_count!=1) | |
| 376 return(TIFFReadDirEntryErrCount); | |
| 377 switch (direntry->tdir_type) | |
| 378 { | |
| 379 case TIFF_BYTE: | |
| 380 { | |
| 381 uint8 m; | |
| 382 TIFFReadDirEntryCheckedByte(tif,direntry,&m); | |
| 383 *value=(uint32)m; | |
| 384 return(TIFFReadDirEntryErrOk); | |
| 385 } | |
| 386 case TIFF_SBYTE: | |
| 387 { | |
| 388 int8 m; | |
| 389 TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); | |
| 390 err=TIFFReadDirEntryCheckRangeLongSbyte(m); | |
| 391 if (err!=TIFFReadDirEntryErrOk) | |
| 392 return(err); | |
| 393 *value=(uint32)m; | |
| 394 return(TIFFReadDirEntryErrOk); | |
| 395 } | |
| 396 case TIFF_SHORT: | |
| 397 { | |
| 398 uint16 m; | |
| 399 TIFFReadDirEntryCheckedShort(tif,direntry,&m); | |
| 400 *value=(uint32)m; | |
| 401 return(TIFFReadDirEntryErrOk); | |
| 402 } | |
| 403 case TIFF_SSHORT: | |
| 404 { | |
| 405 int16 m; | |
| 406 TIFFReadDirEntryCheckedSshort(tif,direntry,&m); | |
| 407 err=TIFFReadDirEntryCheckRangeLongSshort(m); | |
| 408 if (err!=TIFFReadDirEntryErrOk) | |
| 409 return(err); | |
| 410 *value=(uint32)m; | |
| 411 return(TIFFReadDirEntryErrOk); | |
| 412 } | |
| 413 case TIFF_LONG: | |
| 414 TIFFReadDirEntryCheckedLong(tif,direntry,value); | |
| 415 return(TIFFReadDirEntryErrOk); | |
| 416 case TIFF_SLONG: | |
| 417 { | |
| 418 int32 m; | |
| 419 TIFFReadDirEntryCheckedSlong(tif,direntry,&m); | |
| 420 err=TIFFReadDirEntryCheckRangeLongSlong(m); | |
| 421 if (err!=TIFFReadDirEntryErrOk) | |
| 422 return(err); | |
| 423 *value=(uint32)m; | |
| 424 return(TIFFReadDirEntryErrOk); | |
| 425 } | |
| 426 case TIFF_LONG8: | |
| 427 { | |
| 428 uint64 m; | |
| 429 err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m
); | |
| 430 if (err!=TIFFReadDirEntryErrOk) | |
| 431 return(err); | |
| 432 err=TIFFReadDirEntryCheckRangeLongLong8(m); | |
| 433 if (err!=TIFFReadDirEntryErrOk) | |
| 434 return(err); | |
| 435 *value=(uint32)m; | |
| 436 return(TIFFReadDirEntryErrOk); | |
| 437 } | |
| 438 case TIFF_SLONG8: | |
| 439 { | |
| 440 int64 m; | |
| 441 err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&
m); | |
| 442 if (err!=TIFFReadDirEntryErrOk) | |
| 443 return(err); | |
| 444 err=TIFFReadDirEntryCheckRangeLongSlong8(m); | |
| 445 if (err!=TIFFReadDirEntryErrOk) | |
| 446 return(err); | |
| 447 *value=(uint32)m; | |
| 448 return(TIFFReadDirEntryErrOk); | |
| 449 } | |
| 450 default: | |
| 451 return(TIFFReadDirEntryErrType); | |
| 452 } | |
| 453 } | |
| 454 | |
| 455 static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8(TIFF* tif, TIFFDirEntry* d
irentry, uint64* value) | |
| 456 { | |
| 457 enum TIFFReadDirEntryErr err; | |
| 458 if (direntry->tdir_count!=1) | |
| 459 return(TIFFReadDirEntryErrCount); | |
| 460 switch (direntry->tdir_type) | |
| 461 { | |
| 462 case TIFF_BYTE: | |
| 463 { | |
| 464 uint8 m; | |
| 465 TIFFReadDirEntryCheckedByte(tif,direntry,&m); | |
| 466 *value=(uint64)m; | |
| 467 return(TIFFReadDirEntryErrOk); | |
| 468 } | |
| 469 case TIFF_SBYTE: | |
| 470 { | |
| 471 int8 m; | |
| 472 TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); | |
| 473 err=TIFFReadDirEntryCheckRangeLong8Sbyte(m); | |
| 474 if (err!=TIFFReadDirEntryErrOk) | |
| 475 return(err); | |
| 476 *value=(uint64)m; | |
| 477 return(TIFFReadDirEntryErrOk); | |
| 478 } | |
| 479 case TIFF_SHORT: | |
| 480 { | |
| 481 uint16 m; | |
| 482 TIFFReadDirEntryCheckedShort(tif,direntry,&m); | |
| 483 *value=(uint64)m; | |
| 484 return(TIFFReadDirEntryErrOk); | |
| 485 } | |
| 486 case TIFF_SSHORT: | |
| 487 { | |
| 488 int16 m; | |
| 489 TIFFReadDirEntryCheckedSshort(tif,direntry,&m); | |
| 490 err=TIFFReadDirEntryCheckRangeLong8Sshort(m); | |
| 491 if (err!=TIFFReadDirEntryErrOk) | |
| 492 return(err); | |
| 493 *value=(uint64)m; | |
| 494 return(TIFFReadDirEntryErrOk); | |
| 495 } | |
| 496 case TIFF_LONG: | |
| 497 { | |
| 498 uint32 m; | |
| 499 TIFFReadDirEntryCheckedLong(tif,direntry,&m); | |
| 500 *value=(uint64)m; | |
| 501 return(TIFFReadDirEntryErrOk); | |
| 502 } | |
| 503 case TIFF_SLONG: | |
| 504 { | |
| 505 int32 m; | |
| 506 TIFFReadDirEntryCheckedSlong(tif,direntry,&m); | |
| 507 err=TIFFReadDirEntryCheckRangeLong8Slong(m); | |
| 508 if (err!=TIFFReadDirEntryErrOk) | |
| 509 return(err); | |
| 510 *value=(uint64)m; | |
| 511 return(TIFFReadDirEntryErrOk); | |
| 512 } | |
| 513 case TIFF_LONG8: | |
| 514 err=TIFFReadDirEntryCheckedLong8(tif,direntry,value); | |
| 515 return(err); | |
| 516 case TIFF_SLONG8: | |
| 517 { | |
| 518 int64 m; | |
| 519 err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&
m); | |
| 520 if (err!=TIFFReadDirEntryErrOk) | |
| 521 return(err); | |
| 522 err=TIFFReadDirEntryCheckRangeLong8Slong8(m); | |
| 523 if (err!=TIFFReadDirEntryErrOk) | |
| 524 return(err); | |
| 525 *value=(uint64)m; | |
| 526 return(TIFFReadDirEntryErrOk); | |
| 527 } | |
| 528 default: | |
| 529 return(TIFFReadDirEntryErrType); | |
| 530 } | |
| 531 } | |
| 532 | |
| 533 static enum TIFFReadDirEntryErr TIFFReadDirEntryFloat(TIFF* tif, TIFFDirEntry* d
irentry, float* value) | |
| 534 { | |
| 535 enum TIFFReadDirEntryErr err; | |
| 536 if (direntry->tdir_count!=1) | |
| 537 return(TIFFReadDirEntryErrCount); | |
| 538 switch (direntry->tdir_type) | |
| 539 { | |
| 540 case TIFF_BYTE: | |
| 541 { | |
| 542 uint8 m; | |
| 543 TIFFReadDirEntryCheckedByte(tif,direntry,&m); | |
| 544 *value=(float)m; | |
| 545 return(TIFFReadDirEntryErrOk); | |
| 546 } | |
| 547 case TIFF_SBYTE: | |
| 548 { | |
| 549 int8 m; | |
| 550 TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); | |
| 551 *value=(float)m; | |
| 552 return(TIFFReadDirEntryErrOk); | |
| 553 } | |
| 554 case TIFF_SHORT: | |
| 555 { | |
| 556 uint16 m; | |
| 557 TIFFReadDirEntryCheckedShort(tif,direntry,&m); | |
| 558 *value=(float)m; | |
| 559 return(TIFFReadDirEntryErrOk); | |
| 560 } | |
| 561 case TIFF_SSHORT: | |
| 562 { | |
| 563 int16 m; | |
| 564 TIFFReadDirEntryCheckedSshort(tif,direntry,&m); | |
| 565 *value=(float)m; | |
| 566 return(TIFFReadDirEntryErrOk); | |
| 567 } | |
| 568 case TIFF_LONG: | |
| 569 { | |
| 570 uint32 m; | |
| 571 TIFFReadDirEntryCheckedLong(tif,direntry,&m); | |
| 572 *value=(float)m; | |
| 573 return(TIFFReadDirEntryErrOk); | |
| 574 } | |
| 575 case TIFF_SLONG: | |
| 576 { | |
| 577 int32 m; | |
| 578 TIFFReadDirEntryCheckedSlong(tif,direntry,&m); | |
| 579 *value=(float)m; | |
| 580 return(TIFFReadDirEntryErrOk); | |
| 581 } | |
| 582 case TIFF_LONG8: | |
| 583 { | |
| 584 uint64 m; | |
| 585 err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m
); | |
| 586 if (err!=TIFFReadDirEntryErrOk) | |
| 587 return(err); | |
| 588 #if defined(__WIN32__) && (_MSC_VER < 1500) | |
| 589 /* | |
| 590 * XXX: MSVC 6.0 does not support conversion | |
| 591 * of 64-bit integers into floating point | |
| 592 * values. | |
| 593 */ | |
| 594 *value = _TIFFUInt64ToFloat(m); | |
| 595 #else | |
| 596 *value=(float)m; | |
| 597 #endif | |
| 598 return(TIFFReadDirEntryErrOk); | |
| 599 } | |
| 600 case TIFF_SLONG8: | |
| 601 { | |
| 602 int64 m; | |
| 603 err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&
m); | |
| 604 if (err!=TIFFReadDirEntryErrOk) | |
| 605 return(err); | |
| 606 *value=(float)m; | |
| 607 return(TIFFReadDirEntryErrOk); | |
| 608 } | |
| 609 case TIFF_RATIONAL: | |
| 610 { | |
| 611 double m; | |
| 612 err=TIFFReadDirEntryCheckedRational(tif,direntry
,&m); | |
| 613 if (err!=TIFFReadDirEntryErrOk) | |
| 614 return(err); | |
| 615 *value=(float)m; | |
| 616 return(TIFFReadDirEntryErrOk); | |
| 617 } | |
| 618 case TIFF_SRATIONAL: | |
| 619 { | |
| 620 double m; | |
| 621 err=TIFFReadDirEntryCheckedSrational(tif,direntr
y,&m); | |
| 622 if (err!=TIFFReadDirEntryErrOk) | |
| 623 return(err); | |
| 624 *value=(float)m; | |
| 625 return(TIFFReadDirEntryErrOk); | |
| 626 } | |
| 627 case TIFF_FLOAT: | |
| 628 TIFFReadDirEntryCheckedFloat(tif,direntry,value); | |
| 629 return(TIFFReadDirEntryErrOk); | |
| 630 case TIFF_DOUBLE: | |
| 631 { | |
| 632 double m; | |
| 633 err=TIFFReadDirEntryCheckedDouble(tif,direntry,&
m); | |
| 634 if (err!=TIFFReadDirEntryErrOk) | |
| 635 return(err); | |
| 636 *value=(float)m; | |
| 637 return(TIFFReadDirEntryErrOk); | |
| 638 } | |
| 639 default: | |
| 640 return(TIFFReadDirEntryErrType); | |
| 641 } | |
| 642 } | |
| 643 | |
| 644 static enum TIFFReadDirEntryErr TIFFReadDirEntryDouble(TIFF* tif, TIFFDirEntry*
direntry, double* value) | |
| 645 { | |
| 646 enum TIFFReadDirEntryErr err; | |
| 647 if (direntry->tdir_count!=1) | |
| 648 return(TIFFReadDirEntryErrCount); | |
| 649 switch (direntry->tdir_type) | |
| 650 { | |
| 651 case TIFF_BYTE: | |
| 652 { | |
| 653 uint8 m; | |
| 654 TIFFReadDirEntryCheckedByte(tif,direntry,&m); | |
| 655 *value=(double)m; | |
| 656 return(TIFFReadDirEntryErrOk); | |
| 657 } | |
| 658 case TIFF_SBYTE: | |
| 659 { | |
| 660 int8 m; | |
| 661 TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); | |
| 662 *value=(double)m; | |
| 663 return(TIFFReadDirEntryErrOk); | |
| 664 } | |
| 665 case TIFF_SHORT: | |
| 666 { | |
| 667 uint16 m; | |
| 668 TIFFReadDirEntryCheckedShort(tif,direntry,&m); | |
| 669 *value=(double)m; | |
| 670 return(TIFFReadDirEntryErrOk); | |
| 671 } | |
| 672 case TIFF_SSHORT: | |
| 673 { | |
| 674 int16 m; | |
| 675 TIFFReadDirEntryCheckedSshort(tif,direntry,&m); | |
| 676 *value=(double)m; | |
| 677 return(TIFFReadDirEntryErrOk); | |
| 678 } | |
| 679 case TIFF_LONG: | |
| 680 { | |
| 681 uint32 m; | |
| 682 TIFFReadDirEntryCheckedLong(tif,direntry,&m); | |
| 683 *value=(double)m; | |
| 684 return(TIFFReadDirEntryErrOk); | |
| 685 } | |
| 686 case TIFF_SLONG: | |
| 687 { | |
| 688 int32 m; | |
| 689 TIFFReadDirEntryCheckedSlong(tif,direntry,&m); | |
| 690 *value=(double)m; | |
| 691 return(TIFFReadDirEntryErrOk); | |
| 692 } | |
| 693 case TIFF_LONG8: | |
| 694 { | |
| 695 uint64 m; | |
| 696 err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m
); | |
| 697 if (err!=TIFFReadDirEntryErrOk) | |
| 698 return(err); | |
| 699 #if defined(__WIN32__) && (_MSC_VER < 1500) | |
| 700 /* | |
| 701 * XXX: MSVC 6.0 does not support conversion | |
| 702 * of 64-bit integers into floating point | |
| 703 * values. | |
| 704 */ | |
| 705 *value = _TIFFUInt64ToDouble(m); | |
| 706 #else | |
| 707 *value = (double)m; | |
| 708 #endif | |
| 709 return(TIFFReadDirEntryErrOk); | |
| 710 } | |
| 711 case TIFF_SLONG8: | |
| 712 { | |
| 713 int64 m; | |
| 714 err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&
m); | |
| 715 if (err!=TIFFReadDirEntryErrOk) | |
| 716 return(err); | |
| 717 *value=(double)m; | |
| 718 return(TIFFReadDirEntryErrOk); | |
| 719 } | |
| 720 case TIFF_RATIONAL: | |
| 721 err=TIFFReadDirEntryCheckedRational(tif,direntry,value); | |
| 722 return(err); | |
| 723 case TIFF_SRATIONAL: | |
| 724 err=TIFFReadDirEntryCheckedSrational(tif,direntry,value)
; | |
| 725 return(err); | |
| 726 case TIFF_FLOAT: | |
| 727 { | |
| 728 float m; | |
| 729 TIFFReadDirEntryCheckedFloat(tif,direntry,&m); | |
| 730 *value=(double)m; | |
| 731 return(TIFFReadDirEntryErrOk); | |
| 732 } | |
| 733 case TIFF_DOUBLE: | |
| 734 err=TIFFReadDirEntryCheckedDouble(tif,direntry,value); | |
| 735 return(err); | |
| 736 default: | |
| 737 return(TIFFReadDirEntryErrType); | |
| 738 } | |
| 739 } | |
| 740 | |
| 741 static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8(TIFF* tif, TIFFDirEntry* di
rentry, uint64* value) | |
| 742 { | |
| 743 enum TIFFReadDirEntryErr err; | |
| 744 if (direntry->tdir_count!=1) | |
| 745 return(TIFFReadDirEntryErrCount); | |
| 746 switch (direntry->tdir_type) | |
| 747 { | |
| 748 case TIFF_LONG: | |
| 749 case TIFF_IFD: | |
| 750 { | |
| 751 uint32 m; | |
| 752 TIFFReadDirEntryCheckedLong(tif,direntry,&m); | |
| 753 *value=(uint64)m; | |
| 754 return(TIFFReadDirEntryErrOk); | |
| 755 } | |
| 756 case TIFF_LONG8: | |
| 757 case TIFF_IFD8: | |
| 758 err=TIFFReadDirEntryCheckedLong8(tif,direntry,value); | |
| 759 return(err); | |
| 760 default: | |
| 761 return(TIFFReadDirEntryErrType); | |
| 762 } | |
| 763 } | |
| 764 | |
| 765 static enum TIFFReadDirEntryErr TIFFReadDirEntryArray(TIFF* tif, TIFFDirEntry* d
irentry, uint32* count, uint32 desttypesize, void** value) | |
| 766 { | |
| 767 int typesize; | |
| 768 uint32 datasize; | |
| 769 void* data; | |
| 770 typesize=TIFFDataWidth(direntry->tdir_type); | |
| 771 if ((direntry->tdir_count==0)||(typesize==0)) | |
| 772 { | |
| 773 *value=0; | |
| 774 return(TIFFReadDirEntryErrOk); | |
| 775 } | |
| 776 (void) desttypesize; | |
| 777 | |
| 778 /* | |
| 779 * As a sanity check, make sure we have no more than a 2GB tag array | |
| 780 * in either the current data type or the dest data type. This also | |
| 781 * avoids problems with overflow of tmsize_t on 32bit systems. | |
| 782 */ | |
| 783 if ((uint64)(2147483647/typesize)<direntry->tdir_count) | |
| 784 return(TIFFReadDirEntryErrSizesan); | |
| 785 if ((uint64)(2147483647/desttypesize)<direntry->tdir_count) | |
| 786 return(TIFFReadDirEntryErrSizesan); | |
| 787 | |
| 788 *count=(uint32)direntry->tdir_count; | |
| 789 datasize=(*count)*typesize; | |
| 790 assert((tmsize_t)datasize>0); | |
| 791 data=_TIFFCheckMalloc(tif, *count, typesize, "ReadDirEntryArray"); | |
| 792 if (data==0) | |
| 793 return(TIFFReadDirEntryErrAlloc); | |
| 794 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 795 { | |
| 796 if (datasize<=4) | |
| 797 _TIFFmemcpy(data,&direntry->tdir_offset,datasize); | |
| 798 else | |
| 799 { | |
| 800 enum TIFFReadDirEntryErr err; | |
| 801 uint32 offset = direntry->tdir_offset.toff_long; | |
| 802 if (tif->tif_flags&TIFF_SWAB) | |
| 803 TIFFSwabLong(&offset); | |
| 804 err=TIFFReadDirEntryData(tif,(uint64)offset,(tmsize_t)da
tasize,data); | |
| 805 if (err!=TIFFReadDirEntryErrOk) | |
| 806 { | |
| 807 _TIFFfree(data); | |
| 808 return(err); | |
| 809 } | |
| 810 } | |
| 811 } | |
| 812 else | |
| 813 { | |
| 814 if (datasize<=8) | |
| 815 _TIFFmemcpy(data,&direntry->tdir_offset,datasize); | |
| 816 else | |
| 817 { | |
| 818 enum TIFFReadDirEntryErr err; | |
| 819 uint64 offset = direntry->tdir_offset.toff_long8; | |
| 820 if (tif->tif_flags&TIFF_SWAB) | |
| 821 TIFFSwabLong8(&offset); | |
| 822 err=TIFFReadDirEntryData(tif,offset,(tmsize_t)datasize,d
ata); | |
| 823 if (err!=TIFFReadDirEntryErrOk) | |
| 824 { | |
| 825 _TIFFfree(data); | |
| 826 return(err); | |
| 827 } | |
| 828 } | |
| 829 } | |
| 830 *value=data; | |
| 831 return(TIFFReadDirEntryErrOk); | |
| 832 } | |
| 833 | |
| 834 static enum TIFFReadDirEntryErr TIFFReadDirEntryByteArray(TIFF* tif, TIFFDirEntr
y* direntry, uint8** value) | |
| 835 { | |
| 836 enum TIFFReadDirEntryErr err; | |
| 837 uint32 count; | |
| 838 void* origdata; | |
| 839 uint8* data; | |
| 840 switch (direntry->tdir_type) | |
| 841 { | |
| 842 case TIFF_ASCII: | |
| 843 case TIFF_UNDEFINED: | |
| 844 case TIFF_BYTE: | |
| 845 case TIFF_SBYTE: | |
| 846 case TIFF_SHORT: | |
| 847 case TIFF_SSHORT: | |
| 848 case TIFF_LONG: | |
| 849 case TIFF_SLONG: | |
| 850 case TIFF_LONG8: | |
| 851 case TIFF_SLONG8: | |
| 852 break; | |
| 853 default: | |
| 854 return(TIFFReadDirEntryErrType); | |
| 855 } | |
| 856 err=TIFFReadDirEntryArray(tif,direntry,&count,1,&origdata); | |
| 857 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 858 { | |
| 859 *value=0; | |
| 860 return(err); | |
| 861 } | |
| 862 switch (direntry->tdir_type) | |
| 863 { | |
| 864 case TIFF_ASCII: | |
| 865 case TIFF_UNDEFINED: | |
| 866 case TIFF_BYTE: | |
| 867 *value=(uint8*)origdata; | |
| 868 return(TIFFReadDirEntryErrOk); | |
| 869 case TIFF_SBYTE: | |
| 870 { | |
| 871 int8* m; | |
| 872 uint32 n; | |
| 873 m=(int8*)origdata; | |
| 874 for (n=0; n<count; n++) | |
| 875 { | |
| 876 err=TIFFReadDirEntryCheckRangeByteSbyte(
*m); | |
| 877 if (err!=TIFFReadDirEntryErrOk) | |
| 878 { | |
| 879 _TIFFfree(origdata); | |
| 880 return(err); | |
| 881 } | |
| 882 m++; | |
| 883 } | |
| 884 *value=(uint8*)origdata; | |
| 885 return(TIFFReadDirEntryErrOk); | |
| 886 } | |
| 887 } | |
| 888 data=(uint8*)_TIFFmalloc(count); | |
| 889 if (data==0) | |
| 890 { | |
| 891 _TIFFfree(origdata); | |
| 892 return(TIFFReadDirEntryErrAlloc); | |
| 893 } | |
| 894 switch (direntry->tdir_type) | |
| 895 { | |
| 896 case TIFF_SHORT: | |
| 897 { | |
| 898 uint16* ma; | |
| 899 uint8* mb; | |
| 900 uint32 n; | |
| 901 ma=(uint16*)origdata; | |
| 902 mb=data; | |
| 903 for (n=0; n<count; n++) | |
| 904 { | |
| 905 if (tif->tif_flags&TIFF_SWAB) | |
| 906 TIFFSwabShort(ma); | |
| 907 err=TIFFReadDirEntryCheckRangeByteShort(
*ma); | |
| 908 if (err!=TIFFReadDirEntryErrOk) | |
| 909 break; | |
| 910 *mb++=(uint8)(*ma++); | |
| 911 } | |
| 912 } | |
| 913 break; | |
| 914 case TIFF_SSHORT: | |
| 915 { | |
| 916 int16* ma; | |
| 917 uint8* mb; | |
| 918 uint32 n; | |
| 919 ma=(int16*)origdata; | |
| 920 mb=data; | |
| 921 for (n=0; n<count; n++) | |
| 922 { | |
| 923 if (tif->tif_flags&TIFF_SWAB) | |
| 924 TIFFSwabShort((uint16*)ma); | |
| 925 err=TIFFReadDirEntryCheckRangeByteSshort
(*ma); | |
| 926 if (err!=TIFFReadDirEntryErrOk) | |
| 927 break; | |
| 928 *mb++=(uint8)(*ma++); | |
| 929 } | |
| 930 } | |
| 931 break; | |
| 932 case TIFF_LONG: | |
| 933 { | |
| 934 uint32* ma; | |
| 935 uint8* mb; | |
| 936 uint32 n; | |
| 937 ma=(uint32*)origdata; | |
| 938 mb=data; | |
| 939 for (n=0; n<count; n++) | |
| 940 { | |
| 941 if (tif->tif_flags&TIFF_SWAB) | |
| 942 TIFFSwabLong(ma); | |
| 943 err=TIFFReadDirEntryCheckRangeByteLong(*
ma); | |
| 944 if (err!=TIFFReadDirEntryErrOk) | |
| 945 break; | |
| 946 *mb++=(uint8)(*ma++); | |
| 947 } | |
| 948 } | |
| 949 break; | |
| 950 case TIFF_SLONG: | |
| 951 { | |
| 952 int32* ma; | |
| 953 uint8* mb; | |
| 954 uint32 n; | |
| 955 ma=(int32*)origdata; | |
| 956 mb=data; | |
| 957 for (n=0; n<count; n++) | |
| 958 { | |
| 959 if (tif->tif_flags&TIFF_SWAB) | |
| 960 TIFFSwabLong((uint32*)ma); | |
| 961 err=TIFFReadDirEntryCheckRangeByteSlong(
*ma); | |
| 962 if (err!=TIFFReadDirEntryErrOk) | |
| 963 break; | |
| 964 *mb++=(uint8)(*ma++); | |
| 965 } | |
| 966 } | |
| 967 break; | |
| 968 case TIFF_LONG8: | |
| 969 { | |
| 970 uint64* ma; | |
| 971 uint8* mb; | |
| 972 uint32 n; | |
| 973 ma=(uint64*)origdata; | |
| 974 mb=data; | |
| 975 for (n=0; n<count; n++) | |
| 976 { | |
| 977 if (tif->tif_flags&TIFF_SWAB) | |
| 978 TIFFSwabLong8(ma); | |
| 979 err=TIFFReadDirEntryCheckRangeByteLong8(
*ma); | |
| 980 if (err!=TIFFReadDirEntryErrOk) | |
| 981 break; | |
| 982 *mb++=(uint8)(*ma++); | |
| 983 } | |
| 984 } | |
| 985 break; | |
| 986 case TIFF_SLONG8: | |
| 987 { | |
| 988 int64* ma; | |
| 989 uint8* mb; | |
| 990 uint32 n; | |
| 991 ma=(int64*)origdata; | |
| 992 mb=data; | |
| 993 for (n=0; n<count; n++) | |
| 994 { | |
| 995 if (tif->tif_flags&TIFF_SWAB) | |
| 996 TIFFSwabLong8((uint64*)ma); | |
| 997 err=TIFFReadDirEntryCheckRangeByteSlong8
(*ma); | |
| 998 if (err!=TIFFReadDirEntryErrOk) | |
| 999 break; | |
| 1000 *mb++=(uint8)(*ma++); | |
| 1001 } | |
| 1002 } | |
| 1003 break; | |
| 1004 } | |
| 1005 _TIFFfree(origdata); | |
| 1006 if (err!=TIFFReadDirEntryErrOk) | |
| 1007 { | |
| 1008 _TIFFfree(data); | |
| 1009 return(err); | |
| 1010 } | |
| 1011 *value=data; | |
| 1012 return(TIFFReadDirEntryErrOk); | |
| 1013 } | |
| 1014 | |
| 1015 static enum TIFFReadDirEntryErr TIFFReadDirEntrySbyteArray(TIFF* tif, TIFFDirEnt
ry* direntry, int8** value) | |
| 1016 { | |
| 1017 enum TIFFReadDirEntryErr err; | |
| 1018 uint32 count; | |
| 1019 void* origdata; | |
| 1020 int8* data; | |
| 1021 switch (direntry->tdir_type) | |
| 1022 { | |
| 1023 case TIFF_UNDEFINED: | |
| 1024 case TIFF_BYTE: | |
| 1025 case TIFF_SBYTE: | |
| 1026 case TIFF_SHORT: | |
| 1027 case TIFF_SSHORT: | |
| 1028 case TIFF_LONG: | |
| 1029 case TIFF_SLONG: | |
| 1030 case TIFF_LONG8: | |
| 1031 case TIFF_SLONG8: | |
| 1032 break; | |
| 1033 default: | |
| 1034 return(TIFFReadDirEntryErrType); | |
| 1035 } | |
| 1036 err=TIFFReadDirEntryArray(tif,direntry,&count,1,&origdata); | |
| 1037 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 1038 { | |
| 1039 *value=0; | |
| 1040 return(err); | |
| 1041 } | |
| 1042 switch (direntry->tdir_type) | |
| 1043 { | |
| 1044 case TIFF_UNDEFINED: | |
| 1045 case TIFF_BYTE: | |
| 1046 { | |
| 1047 uint8* m; | |
| 1048 uint32 n; | |
| 1049 m=(uint8*)origdata; | |
| 1050 for (n=0; n<count; n++) | |
| 1051 { | |
| 1052 err=TIFFReadDirEntryCheckRangeSbyteByte(
*m); | |
| 1053 if (err!=TIFFReadDirEntryErrOk) | |
| 1054 { | |
| 1055 _TIFFfree(origdata); | |
| 1056 return(err); | |
| 1057 } | |
| 1058 m++; | |
| 1059 } | |
| 1060 *value=(int8*)origdata; | |
| 1061 return(TIFFReadDirEntryErrOk); | |
| 1062 } | |
| 1063 case TIFF_SBYTE: | |
| 1064 *value=(int8*)origdata; | |
| 1065 return(TIFFReadDirEntryErrOk); | |
| 1066 } | |
| 1067 data=(int8*)_TIFFmalloc(count); | |
| 1068 if (data==0) | |
| 1069 { | |
| 1070 _TIFFfree(origdata); | |
| 1071 return(TIFFReadDirEntryErrAlloc); | |
| 1072 } | |
| 1073 switch (direntry->tdir_type) | |
| 1074 { | |
| 1075 case TIFF_SHORT: | |
| 1076 { | |
| 1077 uint16* ma; | |
| 1078 int8* mb; | |
| 1079 uint32 n; | |
| 1080 ma=(uint16*)origdata; | |
| 1081 mb=data; | |
| 1082 for (n=0; n<count; n++) | |
| 1083 { | |
| 1084 if (tif->tif_flags&TIFF_SWAB) | |
| 1085 TIFFSwabShort(ma); | |
| 1086 err=TIFFReadDirEntryCheckRangeSbyteShort
(*ma); | |
| 1087 if (err!=TIFFReadDirEntryErrOk) | |
| 1088 break; | |
| 1089 *mb++=(int8)(*ma++); | |
| 1090 } | |
| 1091 } | |
| 1092 break; | |
| 1093 case TIFF_SSHORT: | |
| 1094 { | |
| 1095 int16* ma; | |
| 1096 int8* mb; | |
| 1097 uint32 n; | |
| 1098 ma=(int16*)origdata; | |
| 1099 mb=data; | |
| 1100 for (n=0; n<count; n++) | |
| 1101 { | |
| 1102 if (tif->tif_flags&TIFF_SWAB) | |
| 1103 TIFFSwabShort((uint16*)ma); | |
| 1104 err=TIFFReadDirEntryCheckRangeSbyteSshor
t(*ma); | |
| 1105 if (err!=TIFFReadDirEntryErrOk) | |
| 1106 break; | |
| 1107 *mb++=(int8)(*ma++); | |
| 1108 } | |
| 1109 } | |
| 1110 break; | |
| 1111 case TIFF_LONG: | |
| 1112 { | |
| 1113 uint32* ma; | |
| 1114 int8* mb; | |
| 1115 uint32 n; | |
| 1116 ma=(uint32*)origdata; | |
| 1117 mb=data; | |
| 1118 for (n=0; n<count; n++) | |
| 1119 { | |
| 1120 if (tif->tif_flags&TIFF_SWAB) | |
| 1121 TIFFSwabLong(ma); | |
| 1122 err=TIFFReadDirEntryCheckRangeSbyteLong(
*ma); | |
| 1123 if (err!=TIFFReadDirEntryErrOk) | |
| 1124 break; | |
| 1125 *mb++=(int8)(*ma++); | |
| 1126 } | |
| 1127 } | |
| 1128 break; | |
| 1129 case TIFF_SLONG: | |
| 1130 { | |
| 1131 int32* ma; | |
| 1132 int8* mb; | |
| 1133 uint32 n; | |
| 1134 ma=(int32*)origdata; | |
| 1135 mb=data; | |
| 1136 for (n=0; n<count; n++) | |
| 1137 { | |
| 1138 if (tif->tif_flags&TIFF_SWAB) | |
| 1139 TIFFSwabLong((uint32*)ma); | |
| 1140 err=TIFFReadDirEntryCheckRangeSbyteSlong
(*ma); | |
| 1141 if (err!=TIFFReadDirEntryErrOk) | |
| 1142 break; | |
| 1143 *mb++=(int8)(*ma++); | |
| 1144 } | |
| 1145 } | |
| 1146 break; | |
| 1147 case TIFF_LONG8: | |
| 1148 { | |
| 1149 uint64* ma; | |
| 1150 int8* mb; | |
| 1151 uint32 n; | |
| 1152 ma=(uint64*)origdata; | |
| 1153 mb=data; | |
| 1154 for (n=0; n<count; n++) | |
| 1155 { | |
| 1156 if (tif->tif_flags&TIFF_SWAB) | |
| 1157 TIFFSwabLong8(ma); | |
| 1158 err=TIFFReadDirEntryCheckRangeSbyteLong8
(*ma); | |
| 1159 if (err!=TIFFReadDirEntryErrOk) | |
| 1160 break; | |
| 1161 *mb++=(int8)(*ma++); | |
| 1162 } | |
| 1163 } | |
| 1164 break; | |
| 1165 case TIFF_SLONG8: | |
| 1166 { | |
| 1167 int64* ma; | |
| 1168 int8* mb; | |
| 1169 uint32 n; | |
| 1170 ma=(int64*)origdata; | |
| 1171 mb=data; | |
| 1172 for (n=0; n<count; n++) | |
| 1173 { | |
| 1174 if (tif->tif_flags&TIFF_SWAB) | |
| 1175 TIFFSwabLong8((uint64*)ma); | |
| 1176 err=TIFFReadDirEntryCheckRangeSbyteSlong
8(*ma); | |
| 1177 if (err!=TIFFReadDirEntryErrOk) | |
| 1178 break; | |
| 1179 *mb++=(int8)(*ma++); | |
| 1180 } | |
| 1181 } | |
| 1182 break; | |
| 1183 } | |
| 1184 _TIFFfree(origdata); | |
| 1185 if (err!=TIFFReadDirEntryErrOk) | |
| 1186 { | |
| 1187 _TIFFfree(data); | |
| 1188 return(err); | |
| 1189 } | |
| 1190 *value=data; | |
| 1191 return(TIFFReadDirEntryErrOk); | |
| 1192 } | |
| 1193 | |
| 1194 static enum TIFFReadDirEntryErr TIFFReadDirEntryShortArray(TIFF* tif, TIFFDirEnt
ry* direntry, uint16** value) | |
| 1195 { | |
| 1196 enum TIFFReadDirEntryErr err; | |
| 1197 uint32 count; | |
| 1198 void* origdata; | |
| 1199 uint16* data; | |
| 1200 switch (direntry->tdir_type) | |
| 1201 { | |
| 1202 case TIFF_BYTE: | |
| 1203 case TIFF_SBYTE: | |
| 1204 case TIFF_SHORT: | |
| 1205 case TIFF_SSHORT: | |
| 1206 case TIFF_LONG: | |
| 1207 case TIFF_SLONG: | |
| 1208 case TIFF_LONG8: | |
| 1209 case TIFF_SLONG8: | |
| 1210 break; | |
| 1211 default: | |
| 1212 return(TIFFReadDirEntryErrType); | |
| 1213 } | |
| 1214 err=TIFFReadDirEntryArray(tif,direntry,&count,2,&origdata); | |
| 1215 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 1216 { | |
| 1217 *value=0; | |
| 1218 return(err); | |
| 1219 } | |
| 1220 switch (direntry->tdir_type) | |
| 1221 { | |
| 1222 case TIFF_SHORT: | |
| 1223 *value=(uint16*)origdata; | |
| 1224 if (tif->tif_flags&TIFF_SWAB) | |
| 1225 TIFFSwabArrayOfShort(*value,count); | |
| 1226 return(TIFFReadDirEntryErrOk); | |
| 1227 case TIFF_SSHORT: | |
| 1228 { | |
| 1229 int16* m; | |
| 1230 uint32 n; | |
| 1231 m=(int16*)origdata; | |
| 1232 for (n=0; n<count; n++) | |
| 1233 { | |
| 1234 if (tif->tif_flags&TIFF_SWAB) | |
| 1235 TIFFSwabShort((uint16*)m); | |
| 1236 err=TIFFReadDirEntryCheckRangeShortSshor
t(*m); | |
| 1237 if (err!=TIFFReadDirEntryErrOk) | |
| 1238 { | |
| 1239 _TIFFfree(origdata); | |
| 1240 return(err); | |
| 1241 } | |
| 1242 m++; | |
| 1243 } | |
| 1244 *value=(uint16*)origdata; | |
| 1245 return(TIFFReadDirEntryErrOk); | |
| 1246 } | |
| 1247 } | |
| 1248 data=(uint16*)_TIFFmalloc(count*2); | |
| 1249 if (data==0) | |
| 1250 { | |
| 1251 _TIFFfree(origdata); | |
| 1252 return(TIFFReadDirEntryErrAlloc); | |
| 1253 } | |
| 1254 switch (direntry->tdir_type) | |
| 1255 { | |
| 1256 case TIFF_BYTE: | |
| 1257 { | |
| 1258 uint8* ma; | |
| 1259 uint16* mb; | |
| 1260 uint32 n; | |
| 1261 ma=(uint8*)origdata; | |
| 1262 mb=data; | |
| 1263 for (n=0; n<count; n++) | |
| 1264 *mb++=(uint16)(*ma++); | |
| 1265 } | |
| 1266 break; | |
| 1267 case TIFF_SBYTE: | |
| 1268 { | |
| 1269 int8* ma; | |
| 1270 uint16* mb; | |
| 1271 uint32 n; | |
| 1272 ma=(int8*)origdata; | |
| 1273 mb=data; | |
| 1274 for (n=0; n<count; n++) | |
| 1275 { | |
| 1276 err=TIFFReadDirEntryCheckRangeShortSbyte
(*ma); | |
| 1277 if (err!=TIFFReadDirEntryErrOk) | |
| 1278 break; | |
| 1279 *mb++=(uint16)(*ma++); | |
| 1280 } | |
| 1281 } | |
| 1282 break; | |
| 1283 case TIFF_LONG: | |
| 1284 { | |
| 1285 uint32* ma; | |
| 1286 uint16* mb; | |
| 1287 uint32 n; | |
| 1288 ma=(uint32*)origdata; | |
| 1289 mb=data; | |
| 1290 for (n=0; n<count; n++) | |
| 1291 { | |
| 1292 if (tif->tif_flags&TIFF_SWAB) | |
| 1293 TIFFSwabLong(ma); | |
| 1294 err=TIFFReadDirEntryCheckRangeShortLong(
*ma); | |
| 1295 if (err!=TIFFReadDirEntryErrOk) | |
| 1296 break; | |
| 1297 *mb++=(uint16)(*ma++); | |
| 1298 } | |
| 1299 } | |
| 1300 break; | |
| 1301 case TIFF_SLONG: | |
| 1302 { | |
| 1303 int32* ma; | |
| 1304 uint16* mb; | |
| 1305 uint32 n; | |
| 1306 ma=(int32*)origdata; | |
| 1307 mb=data; | |
| 1308 for (n=0; n<count; n++) | |
| 1309 { | |
| 1310 if (tif->tif_flags&TIFF_SWAB) | |
| 1311 TIFFSwabLong((uint32*)ma); | |
| 1312 err=TIFFReadDirEntryCheckRangeShortSlong
(*ma); | |
| 1313 if (err!=TIFFReadDirEntryErrOk) | |
| 1314 break; | |
| 1315 *mb++=(uint16)(*ma++); | |
| 1316 } | |
| 1317 } | |
| 1318 break; | |
| 1319 case TIFF_LONG8: | |
| 1320 { | |
| 1321 uint64* ma; | |
| 1322 uint16* mb; | |
| 1323 uint32 n; | |
| 1324 ma=(uint64*)origdata; | |
| 1325 mb=data; | |
| 1326 for (n=0; n<count; n++) | |
| 1327 { | |
| 1328 if (tif->tif_flags&TIFF_SWAB) | |
| 1329 TIFFSwabLong8(ma); | |
| 1330 err=TIFFReadDirEntryCheckRangeShortLong8
(*ma); | |
| 1331 if (err!=TIFFReadDirEntryErrOk) | |
| 1332 break; | |
| 1333 *mb++=(uint16)(*ma++); | |
| 1334 } | |
| 1335 } | |
| 1336 break; | |
| 1337 case TIFF_SLONG8: | |
| 1338 { | |
| 1339 int64* ma; | |
| 1340 uint16* mb; | |
| 1341 uint32 n; | |
| 1342 ma=(int64*)origdata; | |
| 1343 mb=data; | |
| 1344 for (n=0; n<count; n++) | |
| 1345 { | |
| 1346 if (tif->tif_flags&TIFF_SWAB) | |
| 1347 TIFFSwabLong8((uint64*)ma); | |
| 1348 err=TIFFReadDirEntryCheckRangeShortSlong
8(*ma); | |
| 1349 if (err!=TIFFReadDirEntryErrOk) | |
| 1350 break; | |
| 1351 *mb++=(uint16)(*ma++); | |
| 1352 } | |
| 1353 } | |
| 1354 break; | |
| 1355 } | |
| 1356 _TIFFfree(origdata); | |
| 1357 if (err!=TIFFReadDirEntryErrOk) | |
| 1358 { | |
| 1359 _TIFFfree(data); | |
| 1360 return(err); | |
| 1361 } | |
| 1362 *value=data; | |
| 1363 return(TIFFReadDirEntryErrOk); | |
| 1364 } | |
| 1365 | |
| 1366 static enum TIFFReadDirEntryErr TIFFReadDirEntrySshortArray(TIFF* tif, TIFFDirEn
try* direntry, int16** value) | |
| 1367 { | |
| 1368 enum TIFFReadDirEntryErr err; | |
| 1369 uint32 count; | |
| 1370 void* origdata; | |
| 1371 int16* data; | |
| 1372 switch (direntry->tdir_type) | |
| 1373 { | |
| 1374 case TIFF_BYTE: | |
| 1375 case TIFF_SBYTE: | |
| 1376 case TIFF_SHORT: | |
| 1377 case TIFF_SSHORT: | |
| 1378 case TIFF_LONG: | |
| 1379 case TIFF_SLONG: | |
| 1380 case TIFF_LONG8: | |
| 1381 case TIFF_SLONG8: | |
| 1382 break; | |
| 1383 default: | |
| 1384 return(TIFFReadDirEntryErrType); | |
| 1385 } | |
| 1386 err=TIFFReadDirEntryArray(tif,direntry,&count,2,&origdata); | |
| 1387 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 1388 { | |
| 1389 *value=0; | |
| 1390 return(err); | |
| 1391 } | |
| 1392 switch (direntry->tdir_type) | |
| 1393 { | |
| 1394 case TIFF_SHORT: | |
| 1395 { | |
| 1396 uint16* m; | |
| 1397 uint32 n; | |
| 1398 m=(uint16*)origdata; | |
| 1399 for (n=0; n<count; n++) | |
| 1400 { | |
| 1401 if (tif->tif_flags&TIFF_SWAB) | |
| 1402 TIFFSwabShort(m); | |
| 1403 err=TIFFReadDirEntryCheckRangeSshortShor
t(*m); | |
| 1404 if (err!=TIFFReadDirEntryErrOk) | |
| 1405 { | |
| 1406 _TIFFfree(origdata); | |
| 1407 return(err); | |
| 1408 } | |
| 1409 m++; | |
| 1410 } | |
| 1411 *value=(int16*)origdata; | |
| 1412 return(TIFFReadDirEntryErrOk); | |
| 1413 } | |
| 1414 case TIFF_SSHORT: | |
| 1415 *value=(int16*)origdata; | |
| 1416 if (tif->tif_flags&TIFF_SWAB) | |
| 1417 TIFFSwabArrayOfShort((uint16*)(*value),count); | |
| 1418 return(TIFFReadDirEntryErrOk); | |
| 1419 } | |
| 1420 data=(int16*)_TIFFmalloc(count*2); | |
| 1421 if (data==0) | |
| 1422 { | |
| 1423 _TIFFfree(origdata); | |
| 1424 return(TIFFReadDirEntryErrAlloc); | |
| 1425 } | |
| 1426 switch (direntry->tdir_type) | |
| 1427 { | |
| 1428 case TIFF_BYTE: | |
| 1429 { | |
| 1430 uint8* ma; | |
| 1431 int16* mb; | |
| 1432 uint32 n; | |
| 1433 ma=(uint8*)origdata; | |
| 1434 mb=data; | |
| 1435 for (n=0; n<count; n++) | |
| 1436 *mb++=(int16)(*ma++); | |
| 1437 } | |
| 1438 break; | |
| 1439 case TIFF_SBYTE: | |
| 1440 { | |
| 1441 int8* ma; | |
| 1442 int16* mb; | |
| 1443 uint32 n; | |
| 1444 ma=(int8*)origdata; | |
| 1445 mb=data; | |
| 1446 for (n=0; n<count; n++) | |
| 1447 *mb++=(int16)(*ma++); | |
| 1448 } | |
| 1449 break; | |
| 1450 case TIFF_LONG: | |
| 1451 { | |
| 1452 uint32* ma; | |
| 1453 int16* mb; | |
| 1454 uint32 n; | |
| 1455 ma=(uint32*)origdata; | |
| 1456 mb=data; | |
| 1457 for (n=0; n<count; n++) | |
| 1458 { | |
| 1459 if (tif->tif_flags&TIFF_SWAB) | |
| 1460 TIFFSwabLong(ma); | |
| 1461 err=TIFFReadDirEntryCheckRangeSshortLong
(*ma); | |
| 1462 if (err!=TIFFReadDirEntryErrOk) | |
| 1463 break; | |
| 1464 *mb++=(int16)(*ma++); | |
| 1465 } | |
| 1466 } | |
| 1467 break; | |
| 1468 case TIFF_SLONG: | |
| 1469 { | |
| 1470 int32* ma; | |
| 1471 int16* mb; | |
| 1472 uint32 n; | |
| 1473 ma=(int32*)origdata; | |
| 1474 mb=data; | |
| 1475 for (n=0; n<count; n++) | |
| 1476 { | |
| 1477 if (tif->tif_flags&TIFF_SWAB) | |
| 1478 TIFFSwabLong((uint32*)ma); | |
| 1479 err=TIFFReadDirEntryCheckRangeSshortSlon
g(*ma); | |
| 1480 if (err!=TIFFReadDirEntryErrOk) | |
| 1481 break; | |
| 1482 *mb++=(int16)(*ma++); | |
| 1483 } | |
| 1484 } | |
| 1485 break; | |
| 1486 case TIFF_LONG8: | |
| 1487 { | |
| 1488 uint64* ma; | |
| 1489 int16* mb; | |
| 1490 uint32 n; | |
| 1491 ma=(uint64*)origdata; | |
| 1492 mb=data; | |
| 1493 for (n=0; n<count; n++) | |
| 1494 { | |
| 1495 if (tif->tif_flags&TIFF_SWAB) | |
| 1496 TIFFSwabLong8(ma); | |
| 1497 err=TIFFReadDirEntryCheckRangeSshortLong
8(*ma); | |
| 1498 if (err!=TIFFReadDirEntryErrOk) | |
| 1499 break; | |
| 1500 *mb++=(int16)(*ma++); | |
| 1501 } | |
| 1502 } | |
| 1503 break; | |
| 1504 case TIFF_SLONG8: | |
| 1505 { | |
| 1506 int64* ma; | |
| 1507 int16* mb; | |
| 1508 uint32 n; | |
| 1509 ma=(int64*)origdata; | |
| 1510 mb=data; | |
| 1511 for (n=0; n<count; n++) | |
| 1512 { | |
| 1513 if (tif->tif_flags&TIFF_SWAB) | |
| 1514 TIFFSwabLong8((uint64*)ma); | |
| 1515 err=TIFFReadDirEntryCheckRangeSshortSlon
g8(*ma); | |
| 1516 if (err!=TIFFReadDirEntryErrOk) | |
| 1517 break; | |
| 1518 *mb++=(int16)(*ma++); | |
| 1519 } | |
| 1520 } | |
| 1521 break; | |
| 1522 } | |
| 1523 _TIFFfree(origdata); | |
| 1524 if (err!=TIFFReadDirEntryErrOk) | |
| 1525 { | |
| 1526 _TIFFfree(data); | |
| 1527 return(err); | |
| 1528 } | |
| 1529 *value=data; | |
| 1530 return(TIFFReadDirEntryErrOk); | |
| 1531 } | |
| 1532 | |
| 1533 static enum TIFFReadDirEntryErr TIFFReadDirEntryLongArray(TIFF* tif, TIFFDirEntr
y* direntry, uint32** value) | |
| 1534 { | |
| 1535 enum TIFFReadDirEntryErr err; | |
| 1536 uint32 count; | |
| 1537 void* origdata; | |
| 1538 uint32* data; | |
| 1539 switch (direntry->tdir_type) | |
| 1540 { | |
| 1541 case TIFF_BYTE: | |
| 1542 case TIFF_SBYTE: | |
| 1543 case TIFF_SHORT: | |
| 1544 case TIFF_SSHORT: | |
| 1545 case TIFF_LONG: | |
| 1546 case TIFF_SLONG: | |
| 1547 case TIFF_LONG8: | |
| 1548 case TIFF_SLONG8: | |
| 1549 break; | |
| 1550 default: | |
| 1551 return(TIFFReadDirEntryErrType); | |
| 1552 } | |
| 1553 err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata); | |
| 1554 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 1555 { | |
| 1556 *value=0; | |
| 1557 return(err); | |
| 1558 } | |
| 1559 switch (direntry->tdir_type) | |
| 1560 { | |
| 1561 case TIFF_LONG: | |
| 1562 *value=(uint32*)origdata; | |
| 1563 if (tif->tif_flags&TIFF_SWAB) | |
| 1564 TIFFSwabArrayOfLong(*value,count); | |
| 1565 return(TIFFReadDirEntryErrOk); | |
| 1566 case TIFF_SLONG: | |
| 1567 { | |
| 1568 int32* m; | |
| 1569 uint32 n; | |
| 1570 m=(int32*)origdata; | |
| 1571 for (n=0; n<count; n++) | |
| 1572 { | |
| 1573 if (tif->tif_flags&TIFF_SWAB) | |
| 1574 TIFFSwabLong((uint32*)m); | |
| 1575 err=TIFFReadDirEntryCheckRangeLongSlong(
*m); | |
| 1576 if (err!=TIFFReadDirEntryErrOk) | |
| 1577 { | |
| 1578 _TIFFfree(origdata); | |
| 1579 return(err); | |
| 1580 } | |
| 1581 m++; | |
| 1582 } | |
| 1583 *value=(uint32*)origdata; | |
| 1584 return(TIFFReadDirEntryErrOk); | |
| 1585 } | |
| 1586 } | |
| 1587 data=(uint32*)_TIFFmalloc(count*4); | |
| 1588 if (data==0) | |
| 1589 { | |
| 1590 _TIFFfree(origdata); | |
| 1591 return(TIFFReadDirEntryErrAlloc); | |
| 1592 } | |
| 1593 switch (direntry->tdir_type) | |
| 1594 { | |
| 1595 case TIFF_BYTE: | |
| 1596 { | |
| 1597 uint8* ma; | |
| 1598 uint32* mb; | |
| 1599 uint32 n; | |
| 1600 ma=(uint8*)origdata; | |
| 1601 mb=data; | |
| 1602 for (n=0; n<count; n++) | |
| 1603 *mb++=(uint32)(*ma++); | |
| 1604 } | |
| 1605 break; | |
| 1606 case TIFF_SBYTE: | |
| 1607 { | |
| 1608 int8* ma; | |
| 1609 uint32* mb; | |
| 1610 uint32 n; | |
| 1611 ma=(int8*)origdata; | |
| 1612 mb=data; | |
| 1613 for (n=0; n<count; n++) | |
| 1614 { | |
| 1615 err=TIFFReadDirEntryCheckRangeLongSbyte(
*ma); | |
| 1616 if (err!=TIFFReadDirEntryErrOk) | |
| 1617 break; | |
| 1618 *mb++=(uint32)(*ma++); | |
| 1619 } | |
| 1620 } | |
| 1621 break; | |
| 1622 case TIFF_SHORT: | |
| 1623 { | |
| 1624 uint16* ma; | |
| 1625 uint32* mb; | |
| 1626 uint32 n; | |
| 1627 ma=(uint16*)origdata; | |
| 1628 mb=data; | |
| 1629 for (n=0; n<count; n++) | |
| 1630 { | |
| 1631 if (tif->tif_flags&TIFF_SWAB) | |
| 1632 TIFFSwabShort(ma); | |
| 1633 *mb++=(uint32)(*ma++); | |
| 1634 } | |
| 1635 } | |
| 1636 break; | |
| 1637 case TIFF_SSHORT: | |
| 1638 { | |
| 1639 int16* ma; | |
| 1640 uint32* mb; | |
| 1641 uint32 n; | |
| 1642 ma=(int16*)origdata; | |
| 1643 mb=data; | |
| 1644 for (n=0; n<count; n++) | |
| 1645 { | |
| 1646 if (tif->tif_flags&TIFF_SWAB) | |
| 1647 TIFFSwabShort((uint16*)ma); | |
| 1648 err=TIFFReadDirEntryCheckRangeLongSshort
(*ma); | |
| 1649 if (err!=TIFFReadDirEntryErrOk) | |
| 1650 break; | |
| 1651 *mb++=(uint32)(*ma++); | |
| 1652 } | |
| 1653 } | |
| 1654 break; | |
| 1655 case TIFF_LONG8: | |
| 1656 { | |
| 1657 uint64* ma; | |
| 1658 uint32* mb; | |
| 1659 uint32 n; | |
| 1660 ma=(uint64*)origdata; | |
| 1661 mb=data; | |
| 1662 for (n=0; n<count; n++) | |
| 1663 { | |
| 1664 if (tif->tif_flags&TIFF_SWAB) | |
| 1665 TIFFSwabLong8(ma); | |
| 1666 err=TIFFReadDirEntryCheckRangeLongLong8(
*ma); | |
| 1667 if (err!=TIFFReadDirEntryErrOk) | |
| 1668 break; | |
| 1669 *mb++=(uint32)(*ma++); | |
| 1670 } | |
| 1671 } | |
| 1672 break; | |
| 1673 case TIFF_SLONG8: | |
| 1674 { | |
| 1675 int64* ma; | |
| 1676 uint32* mb; | |
| 1677 uint32 n; | |
| 1678 ma=(int64*)origdata; | |
| 1679 mb=data; | |
| 1680 for (n=0; n<count; n++) | |
| 1681 { | |
| 1682 if (tif->tif_flags&TIFF_SWAB) | |
| 1683 TIFFSwabLong8((uint64*)ma); | |
| 1684 err=TIFFReadDirEntryCheckRangeLongSlong8
(*ma); | |
| 1685 if (err!=TIFFReadDirEntryErrOk) | |
| 1686 break; | |
| 1687 *mb++=(uint32)(*ma++); | |
| 1688 } | |
| 1689 } | |
| 1690 break; | |
| 1691 } | |
| 1692 _TIFFfree(origdata); | |
| 1693 if (err!=TIFFReadDirEntryErrOk) | |
| 1694 { | |
| 1695 _TIFFfree(data); | |
| 1696 return(err); | |
| 1697 } | |
| 1698 *value=data; | |
| 1699 return(TIFFReadDirEntryErrOk); | |
| 1700 } | |
| 1701 | |
| 1702 static enum TIFFReadDirEntryErr TIFFReadDirEntrySlongArray(TIFF* tif, TIFFDirEnt
ry* direntry, int32** value) | |
| 1703 { | |
| 1704 enum TIFFReadDirEntryErr err; | |
| 1705 uint32 count; | |
| 1706 void* origdata; | |
| 1707 int32* data; | |
| 1708 switch (direntry->tdir_type) | |
| 1709 { | |
| 1710 case TIFF_BYTE: | |
| 1711 case TIFF_SBYTE: | |
| 1712 case TIFF_SHORT: | |
| 1713 case TIFF_SSHORT: | |
| 1714 case TIFF_LONG: | |
| 1715 case TIFF_SLONG: | |
| 1716 case TIFF_LONG8: | |
| 1717 case TIFF_SLONG8: | |
| 1718 break; | |
| 1719 default: | |
| 1720 return(TIFFReadDirEntryErrType); | |
| 1721 } | |
| 1722 err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata); | |
| 1723 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 1724 { | |
| 1725 *value=0; | |
| 1726 return(err); | |
| 1727 } | |
| 1728 switch (direntry->tdir_type) | |
| 1729 { | |
| 1730 case TIFF_LONG: | |
| 1731 { | |
| 1732 uint32* m; | |
| 1733 uint32 n; | |
| 1734 m=(uint32*)origdata; | |
| 1735 for (n=0; n<count; n++) | |
| 1736 { | |
| 1737 if (tif->tif_flags&TIFF_SWAB) | |
| 1738 TIFFSwabLong((uint32*)m); | |
| 1739 err=TIFFReadDirEntryCheckRangeSlongLong(
*m); | |
| 1740 if (err!=TIFFReadDirEntryErrOk) | |
| 1741 { | |
| 1742 _TIFFfree(origdata); | |
| 1743 return(err); | |
| 1744 } | |
| 1745 m++; | |
| 1746 } | |
| 1747 *value=(int32*)origdata; | |
| 1748 return(TIFFReadDirEntryErrOk); | |
| 1749 } | |
| 1750 case TIFF_SLONG: | |
| 1751 *value=(int32*)origdata; | |
| 1752 if (tif->tif_flags&TIFF_SWAB) | |
| 1753 TIFFSwabArrayOfLong((uint32*)(*value),count); | |
| 1754 return(TIFFReadDirEntryErrOk); | |
| 1755 } | |
| 1756 data=(int32*)_TIFFmalloc(count*4); | |
| 1757 if (data==0) | |
| 1758 { | |
| 1759 _TIFFfree(origdata); | |
| 1760 return(TIFFReadDirEntryErrAlloc); | |
| 1761 } | |
| 1762 switch (direntry->tdir_type) | |
| 1763 { | |
| 1764 case TIFF_BYTE: | |
| 1765 { | |
| 1766 uint8* ma; | |
| 1767 int32* mb; | |
| 1768 uint32 n; | |
| 1769 ma=(uint8*)origdata; | |
| 1770 mb=data; | |
| 1771 for (n=0; n<count; n++) | |
| 1772 *mb++=(int32)(*ma++); | |
| 1773 } | |
| 1774 break; | |
| 1775 case TIFF_SBYTE: | |
| 1776 { | |
| 1777 int8* ma; | |
| 1778 int32* mb; | |
| 1779 uint32 n; | |
| 1780 ma=(int8*)origdata; | |
| 1781 mb=data; | |
| 1782 for (n=0; n<count; n++) | |
| 1783 *mb++=(int32)(*ma++); | |
| 1784 } | |
| 1785 break; | |
| 1786 case TIFF_SHORT: | |
| 1787 { | |
| 1788 uint16* ma; | |
| 1789 int32* mb; | |
| 1790 uint32 n; | |
| 1791 ma=(uint16*)origdata; | |
| 1792 mb=data; | |
| 1793 for (n=0; n<count; n++) | |
| 1794 { | |
| 1795 if (tif->tif_flags&TIFF_SWAB) | |
| 1796 TIFFSwabShort(ma); | |
| 1797 *mb++=(int32)(*ma++); | |
| 1798 } | |
| 1799 } | |
| 1800 break; | |
| 1801 case TIFF_SSHORT: | |
| 1802 { | |
| 1803 int16* ma; | |
| 1804 int32* mb; | |
| 1805 uint32 n; | |
| 1806 ma=(int16*)origdata; | |
| 1807 mb=data; | |
| 1808 for (n=0; n<count; n++) | |
| 1809 { | |
| 1810 if (tif->tif_flags&TIFF_SWAB) | |
| 1811 TIFFSwabShort((uint16*)ma); | |
| 1812 *mb++=(int32)(*ma++); | |
| 1813 } | |
| 1814 } | |
| 1815 break; | |
| 1816 case TIFF_LONG8: | |
| 1817 { | |
| 1818 uint64* ma; | |
| 1819 int32* mb; | |
| 1820 uint32 n; | |
| 1821 ma=(uint64*)origdata; | |
| 1822 mb=data; | |
| 1823 for (n=0; n<count; n++) | |
| 1824 { | |
| 1825 if (tif->tif_flags&TIFF_SWAB) | |
| 1826 TIFFSwabLong8(ma); | |
| 1827 err=TIFFReadDirEntryCheckRangeSlongLong8
(*ma); | |
| 1828 if (err!=TIFFReadDirEntryErrOk) | |
| 1829 break; | |
| 1830 *mb++=(int32)(*ma++); | |
| 1831 } | |
| 1832 } | |
| 1833 break; | |
| 1834 case TIFF_SLONG8: | |
| 1835 { | |
| 1836 int64* ma; | |
| 1837 int32* mb; | |
| 1838 uint32 n; | |
| 1839 ma=(int64*)origdata; | |
| 1840 mb=data; | |
| 1841 for (n=0; n<count; n++) | |
| 1842 { | |
| 1843 if (tif->tif_flags&TIFF_SWAB) | |
| 1844 TIFFSwabLong8((uint64*)ma); | |
| 1845 err=TIFFReadDirEntryCheckRangeSlongSlong
8(*ma); | |
| 1846 if (err!=TIFFReadDirEntryErrOk) | |
| 1847 break; | |
| 1848 *mb++=(int32)(*ma++); | |
| 1849 } | |
| 1850 } | |
| 1851 break; | |
| 1852 } | |
| 1853 _TIFFfree(origdata); | |
| 1854 if (err!=TIFFReadDirEntryErrOk) | |
| 1855 { | |
| 1856 _TIFFfree(data); | |
| 1857 return(err); | |
| 1858 } | |
| 1859 *value=data; | |
| 1860 return(TIFFReadDirEntryErrOk); | |
| 1861 } | |
| 1862 | |
| 1863 static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8Array(TIFF* tif, TIFFDirEnt
ry* direntry, uint64** value) | |
| 1864 { | |
| 1865 enum TIFFReadDirEntryErr err; | |
| 1866 uint32 count; | |
| 1867 void* origdata; | |
| 1868 uint64* data; | |
| 1869 switch (direntry->tdir_type) | |
| 1870 { | |
| 1871 case TIFF_BYTE: | |
| 1872 case TIFF_SBYTE: | |
| 1873 case TIFF_SHORT: | |
| 1874 case TIFF_SSHORT: | |
| 1875 case TIFF_LONG: | |
| 1876 case TIFF_SLONG: | |
| 1877 case TIFF_LONG8: | |
| 1878 case TIFF_SLONG8: | |
| 1879 break; | |
| 1880 default: | |
| 1881 return(TIFFReadDirEntryErrType); | |
| 1882 } | |
| 1883 err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata); | |
| 1884 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 1885 { | |
| 1886 *value=0; | |
| 1887 return(err); | |
| 1888 } | |
| 1889 switch (direntry->tdir_type) | |
| 1890 { | |
| 1891 case TIFF_LONG8: | |
| 1892 *value=(uint64*)origdata; | |
| 1893 if (tif->tif_flags&TIFF_SWAB) | |
| 1894 TIFFSwabArrayOfLong8(*value,count); | |
| 1895 return(TIFFReadDirEntryErrOk); | |
| 1896 case TIFF_SLONG8: | |
| 1897 { | |
| 1898 int64* m; | |
| 1899 uint32 n; | |
| 1900 m=(int64*)origdata; | |
| 1901 for (n=0; n<count; n++) | |
| 1902 { | |
| 1903 if (tif->tif_flags&TIFF_SWAB) | |
| 1904 TIFFSwabLong8((uint64*)m); | |
| 1905 err=TIFFReadDirEntryCheckRangeLong8Slong
8(*m); | |
| 1906 if (err!=TIFFReadDirEntryErrOk) | |
| 1907 { | |
| 1908 _TIFFfree(origdata); | |
| 1909 return(err); | |
| 1910 } | |
| 1911 m++; | |
| 1912 } | |
| 1913 *value=(uint64*)origdata; | |
| 1914 return(TIFFReadDirEntryErrOk); | |
| 1915 } | |
| 1916 } | |
| 1917 data=(uint64*)_TIFFmalloc(count*8); | |
| 1918 if (data==0) | |
| 1919 { | |
| 1920 _TIFFfree(origdata); | |
| 1921 return(TIFFReadDirEntryErrAlloc); | |
| 1922 } | |
| 1923 switch (direntry->tdir_type) | |
| 1924 { | |
| 1925 case TIFF_BYTE: | |
| 1926 { | |
| 1927 uint8* ma; | |
| 1928 uint64* mb; | |
| 1929 uint32 n; | |
| 1930 ma=(uint8*)origdata; | |
| 1931 mb=data; | |
| 1932 for (n=0; n<count; n++) | |
| 1933 *mb++=(uint64)(*ma++); | |
| 1934 } | |
| 1935 break; | |
| 1936 case TIFF_SBYTE: | |
| 1937 { | |
| 1938 int8* ma; | |
| 1939 uint64* mb; | |
| 1940 uint32 n; | |
| 1941 ma=(int8*)origdata; | |
| 1942 mb=data; | |
| 1943 for (n=0; n<count; n++) | |
| 1944 { | |
| 1945 err=TIFFReadDirEntryCheckRangeLong8Sbyte
(*ma); | |
| 1946 if (err!=TIFFReadDirEntryErrOk) | |
| 1947 break; | |
| 1948 *mb++=(uint64)(*ma++); | |
| 1949 } | |
| 1950 } | |
| 1951 break; | |
| 1952 case TIFF_SHORT: | |
| 1953 { | |
| 1954 uint16* ma; | |
| 1955 uint64* mb; | |
| 1956 uint32 n; | |
| 1957 ma=(uint16*)origdata; | |
| 1958 mb=data; | |
| 1959 for (n=0; n<count; n++) | |
| 1960 { | |
| 1961 if (tif->tif_flags&TIFF_SWAB) | |
| 1962 TIFFSwabShort(ma); | |
| 1963 *mb++=(uint64)(*ma++); | |
| 1964 } | |
| 1965 } | |
| 1966 break; | |
| 1967 case TIFF_SSHORT: | |
| 1968 { | |
| 1969 int16* ma; | |
| 1970 uint64* mb; | |
| 1971 uint32 n; | |
| 1972 ma=(int16*)origdata; | |
| 1973 mb=data; | |
| 1974 for (n=0; n<count; n++) | |
| 1975 { | |
| 1976 if (tif->tif_flags&TIFF_SWAB) | |
| 1977 TIFFSwabShort((uint16*)ma); | |
| 1978 err=TIFFReadDirEntryCheckRangeLong8Sshor
t(*ma); | |
| 1979 if (err!=TIFFReadDirEntryErrOk) | |
| 1980 break; | |
| 1981 *mb++=(uint64)(*ma++); | |
| 1982 } | |
| 1983 } | |
| 1984 break; | |
| 1985 case TIFF_LONG: | |
| 1986 { | |
| 1987 uint32* ma; | |
| 1988 uint64* mb; | |
| 1989 uint32 n; | |
| 1990 ma=(uint32*)origdata; | |
| 1991 mb=data; | |
| 1992 for (n=0; n<count; n++) | |
| 1993 { | |
| 1994 if (tif->tif_flags&TIFF_SWAB) | |
| 1995 TIFFSwabLong(ma); | |
| 1996 *mb++=(uint64)(*ma++); | |
| 1997 } | |
| 1998 } | |
| 1999 break; | |
| 2000 case TIFF_SLONG: | |
| 2001 { | |
| 2002 int32* ma; | |
| 2003 uint64* mb; | |
| 2004 uint32 n; | |
| 2005 ma=(int32*)origdata; | |
| 2006 mb=data; | |
| 2007 for (n=0; n<count; n++) | |
| 2008 { | |
| 2009 if (tif->tif_flags&TIFF_SWAB) | |
| 2010 TIFFSwabLong((uint32*)ma); | |
| 2011 err=TIFFReadDirEntryCheckRangeLong8Slong
(*ma); | |
| 2012 if (err!=TIFFReadDirEntryErrOk) | |
| 2013 break; | |
| 2014 *mb++=(uint64)(*ma++); | |
| 2015 } | |
| 2016 } | |
| 2017 break; | |
| 2018 } | |
| 2019 _TIFFfree(origdata); | |
| 2020 if (err!=TIFFReadDirEntryErrOk) | |
| 2021 { | |
| 2022 _TIFFfree(data); | |
| 2023 return(err); | |
| 2024 } | |
| 2025 *value=data; | |
| 2026 return(TIFFReadDirEntryErrOk); | |
| 2027 } | |
| 2028 | |
| 2029 static enum TIFFReadDirEntryErr TIFFReadDirEntrySlong8Array(TIFF* tif, TIFFDirEn
try* direntry, int64** value) | |
| 2030 { | |
| 2031 enum TIFFReadDirEntryErr err; | |
| 2032 uint32 count; | |
| 2033 void* origdata; | |
| 2034 int64* data; | |
| 2035 switch (direntry->tdir_type) | |
| 2036 { | |
| 2037 case TIFF_BYTE: | |
| 2038 case TIFF_SBYTE: | |
| 2039 case TIFF_SHORT: | |
| 2040 case TIFF_SSHORT: | |
| 2041 case TIFF_LONG: | |
| 2042 case TIFF_SLONG: | |
| 2043 case TIFF_LONG8: | |
| 2044 case TIFF_SLONG8: | |
| 2045 break; | |
| 2046 default: | |
| 2047 return(TIFFReadDirEntryErrType); | |
| 2048 } | |
| 2049 err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata); | |
| 2050 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 2051 { | |
| 2052 *value=0; | |
| 2053 return(err); | |
| 2054 } | |
| 2055 switch (direntry->tdir_type) | |
| 2056 { | |
| 2057 case TIFF_LONG8: | |
| 2058 { | |
| 2059 uint64* m; | |
| 2060 uint32 n; | |
| 2061 m=(uint64*)origdata; | |
| 2062 for (n=0; n<count; n++) | |
| 2063 { | |
| 2064 if (tif->tif_flags&TIFF_SWAB) | |
| 2065 TIFFSwabLong8(m); | |
| 2066 err=TIFFReadDirEntryCheckRangeSlong8Long
8(*m); | |
| 2067 if (err!=TIFFReadDirEntryErrOk) | |
| 2068 { | |
| 2069 _TIFFfree(origdata); | |
| 2070 return(err); | |
| 2071 } | |
| 2072 m++; | |
| 2073 } | |
| 2074 *value=(int64*)origdata; | |
| 2075 return(TIFFReadDirEntryErrOk); | |
| 2076 } | |
| 2077 case TIFF_SLONG8: | |
| 2078 *value=(int64*)origdata; | |
| 2079 if (tif->tif_flags&TIFF_SWAB) | |
| 2080 TIFFSwabArrayOfLong8((uint64*)(*value),count); | |
| 2081 return(TIFFReadDirEntryErrOk); | |
| 2082 } | |
| 2083 data=(int64*)_TIFFmalloc(count*8); | |
| 2084 if (data==0) | |
| 2085 { | |
| 2086 _TIFFfree(origdata); | |
| 2087 return(TIFFReadDirEntryErrAlloc); | |
| 2088 } | |
| 2089 switch (direntry->tdir_type) | |
| 2090 { | |
| 2091 case TIFF_BYTE: | |
| 2092 { | |
| 2093 uint8* ma; | |
| 2094 int64* mb; | |
| 2095 uint32 n; | |
| 2096 ma=(uint8*)origdata; | |
| 2097 mb=data; | |
| 2098 for (n=0; n<count; n++) | |
| 2099 *mb++=(int64)(*ma++); | |
| 2100 } | |
| 2101 break; | |
| 2102 case TIFF_SBYTE: | |
| 2103 { | |
| 2104 int8* ma; | |
| 2105 int64* mb; | |
| 2106 uint32 n; | |
| 2107 ma=(int8*)origdata; | |
| 2108 mb=data; | |
| 2109 for (n=0; n<count; n++) | |
| 2110 *mb++=(int64)(*ma++); | |
| 2111 } | |
| 2112 break; | |
| 2113 case TIFF_SHORT: | |
| 2114 { | |
| 2115 uint16* ma; | |
| 2116 int64* mb; | |
| 2117 uint32 n; | |
| 2118 ma=(uint16*)origdata; | |
| 2119 mb=data; | |
| 2120 for (n=0; n<count; n++) | |
| 2121 { | |
| 2122 if (tif->tif_flags&TIFF_SWAB) | |
| 2123 TIFFSwabShort(ma); | |
| 2124 *mb++=(int64)(*ma++); | |
| 2125 } | |
| 2126 } | |
| 2127 break; | |
| 2128 case TIFF_SSHORT: | |
| 2129 { | |
| 2130 int16* ma; | |
| 2131 int64* mb; | |
| 2132 uint32 n; | |
| 2133 ma=(int16*)origdata; | |
| 2134 mb=data; | |
| 2135 for (n=0; n<count; n++) | |
| 2136 { | |
| 2137 if (tif->tif_flags&TIFF_SWAB) | |
| 2138 TIFFSwabShort((uint16*)ma); | |
| 2139 *mb++=(int64)(*ma++); | |
| 2140 } | |
| 2141 } | |
| 2142 break; | |
| 2143 case TIFF_LONG: | |
| 2144 { | |
| 2145 uint32* ma; | |
| 2146 int64* mb; | |
| 2147 uint32 n; | |
| 2148 ma=(uint32*)origdata; | |
| 2149 mb=data; | |
| 2150 for (n=0; n<count; n++) | |
| 2151 { | |
| 2152 if (tif->tif_flags&TIFF_SWAB) | |
| 2153 TIFFSwabLong(ma); | |
| 2154 *mb++=(int64)(*ma++); | |
| 2155 } | |
| 2156 } | |
| 2157 break; | |
| 2158 case TIFF_SLONG: | |
| 2159 { | |
| 2160 int32* ma; | |
| 2161 int64* mb; | |
| 2162 uint32 n; | |
| 2163 ma=(int32*)origdata; | |
| 2164 mb=data; | |
| 2165 for (n=0; n<count; n++) | |
| 2166 { | |
| 2167 if (tif->tif_flags&TIFF_SWAB) | |
| 2168 TIFFSwabLong((uint32*)ma); | |
| 2169 *mb++=(int64)(*ma++); | |
| 2170 } | |
| 2171 } | |
| 2172 break; | |
| 2173 } | |
| 2174 _TIFFfree(origdata); | |
| 2175 if (err!=TIFFReadDirEntryErrOk) | |
| 2176 { | |
| 2177 _TIFFfree(data); | |
| 2178 return(err); | |
| 2179 } | |
| 2180 *value=data; | |
| 2181 return(TIFFReadDirEntryErrOk); | |
| 2182 } | |
| 2183 | |
| 2184 static enum TIFFReadDirEntryErr TIFFReadDirEntryFloatArray(TIFF* tif, TIFFDirEnt
ry* direntry, float** value) | |
| 2185 { | |
| 2186 enum TIFFReadDirEntryErr err; | |
| 2187 uint32 count; | |
| 2188 void* origdata; | |
| 2189 float* data; | |
| 2190 switch (direntry->tdir_type) | |
| 2191 { | |
| 2192 case TIFF_BYTE: | |
| 2193 case TIFF_SBYTE: | |
| 2194 case TIFF_SHORT: | |
| 2195 case TIFF_SSHORT: | |
| 2196 case TIFF_LONG: | |
| 2197 case TIFF_SLONG: | |
| 2198 case TIFF_LONG8: | |
| 2199 case TIFF_SLONG8: | |
| 2200 case TIFF_RATIONAL: | |
| 2201 case TIFF_SRATIONAL: | |
| 2202 case TIFF_FLOAT: | |
| 2203 case TIFF_DOUBLE: | |
| 2204 break; | |
| 2205 default: | |
| 2206 return(TIFFReadDirEntryErrType); | |
| 2207 } | |
| 2208 err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata); | |
| 2209 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 2210 { | |
| 2211 *value=0; | |
| 2212 return(err); | |
| 2213 } | |
| 2214 switch (direntry->tdir_type) | |
| 2215 { | |
| 2216 case TIFF_FLOAT: | |
| 2217 if (tif->tif_flags&TIFF_SWAB) | |
| 2218 TIFFSwabArrayOfLong((uint32*)origdata,count); | |
| 2219 TIFFCvtIEEEDoubleToNative(tif,count,(float*)origdata); | |
| 2220 *value=(float*)origdata; | |
| 2221 return(TIFFReadDirEntryErrOk); | |
| 2222 } | |
| 2223 data=(float*)_TIFFmalloc(count*sizeof(float)); | |
| 2224 if (data==0) | |
| 2225 { | |
| 2226 _TIFFfree(origdata); | |
| 2227 return(TIFFReadDirEntryErrAlloc); | |
| 2228 } | |
| 2229 switch (direntry->tdir_type) | |
| 2230 { | |
| 2231 case TIFF_BYTE: | |
| 2232 { | |
| 2233 uint8* ma; | |
| 2234 float* mb; | |
| 2235 uint32 n; | |
| 2236 ma=(uint8*)origdata; | |
| 2237 mb=data; | |
| 2238 for (n=0; n<count; n++) | |
| 2239 *mb++=(float)(*ma++); | |
| 2240 } | |
| 2241 break; | |
| 2242 case TIFF_SBYTE: | |
| 2243 { | |
| 2244 int8* ma; | |
| 2245 float* mb; | |
| 2246 uint32 n; | |
| 2247 ma=(int8*)origdata; | |
| 2248 mb=data; | |
| 2249 for (n=0; n<count; n++) | |
| 2250 *mb++=(float)(*ma++); | |
| 2251 } | |
| 2252 break; | |
| 2253 case TIFF_SHORT: | |
| 2254 { | |
| 2255 uint16* ma; | |
| 2256 float* mb; | |
| 2257 uint32 n; | |
| 2258 ma=(uint16*)origdata; | |
| 2259 mb=data; | |
| 2260 for (n=0; n<count; n++) | |
| 2261 { | |
| 2262 if (tif->tif_flags&TIFF_SWAB) | |
| 2263 TIFFSwabShort(ma); | |
| 2264 *mb++=(float)(*ma++); | |
| 2265 } | |
| 2266 } | |
| 2267 break; | |
| 2268 case TIFF_SSHORT: | |
| 2269 { | |
| 2270 int16* ma; | |
| 2271 float* mb; | |
| 2272 uint32 n; | |
| 2273 ma=(int16*)origdata; | |
| 2274 mb=data; | |
| 2275 for (n=0; n<count; n++) | |
| 2276 { | |
| 2277 if (tif->tif_flags&TIFF_SWAB) | |
| 2278 TIFFSwabShort((uint16*)ma); | |
| 2279 *mb++=(float)(*ma++); | |
| 2280 } | |
| 2281 } | |
| 2282 break; | |
| 2283 case TIFF_LONG: | |
| 2284 { | |
| 2285 uint32* ma; | |
| 2286 float* mb; | |
| 2287 uint32 n; | |
| 2288 ma=(uint32*)origdata; | |
| 2289 mb=data; | |
| 2290 for (n=0; n<count; n++) | |
| 2291 { | |
| 2292 if (tif->tif_flags&TIFF_SWAB) | |
| 2293 TIFFSwabLong(ma); | |
| 2294 *mb++=(float)(*ma++); | |
| 2295 } | |
| 2296 } | |
| 2297 break; | |
| 2298 case TIFF_SLONG: | |
| 2299 { | |
| 2300 int32* ma; | |
| 2301 float* mb; | |
| 2302 uint32 n; | |
| 2303 ma=(int32*)origdata; | |
| 2304 mb=data; | |
| 2305 for (n=0; n<count; n++) | |
| 2306 { | |
| 2307 if (tif->tif_flags&TIFF_SWAB) | |
| 2308 TIFFSwabLong((uint32*)ma); | |
| 2309 *mb++=(float)(*ma++); | |
| 2310 } | |
| 2311 } | |
| 2312 break; | |
| 2313 case TIFF_LONG8: | |
| 2314 { | |
| 2315 uint64* ma; | |
| 2316 float* mb; | |
| 2317 uint32 n; | |
| 2318 ma=(uint64*)origdata; | |
| 2319 mb=data; | |
| 2320 for (n=0; n<count; n++) | |
| 2321 { | |
| 2322 if (tif->tif_flags&TIFF_SWAB) | |
| 2323 TIFFSwabLong8(ma); | |
| 2324 #if defined(__WIN32__) && (_MSC_VER < 1500) | |
| 2325 /* | |
| 2326 * XXX: MSVC 6.0 does not support | |
| 2327 * conversion of 64-bit integers into | |
| 2328 * floating point values. | |
| 2329 */ | |
| 2330 *mb++ = _TIFFUInt64ToFloat(*ma++); | |
| 2331 #else | |
| 2332 *mb++ = (float)(*ma++); | |
| 2333 #endif | |
| 2334 } | |
| 2335 } | |
| 2336 break; | |
| 2337 case TIFF_SLONG8: | |
| 2338 { | |
| 2339 int64* ma; | |
| 2340 float* mb; | |
| 2341 uint32 n; | |
| 2342 ma=(int64*)origdata; | |
| 2343 mb=data; | |
| 2344 for (n=0; n<count; n++) | |
| 2345 { | |
| 2346 if (tif->tif_flags&TIFF_SWAB) | |
| 2347 TIFFSwabLong8((uint64*)ma); | |
| 2348 *mb++=(float)(*ma++); | |
| 2349 } | |
| 2350 } | |
| 2351 break; | |
| 2352 case TIFF_RATIONAL: | |
| 2353 { | |
| 2354 uint32* ma; | |
| 2355 uint32 maa; | |
| 2356 uint32 mab; | |
| 2357 float* mb; | |
| 2358 uint32 n; | |
| 2359 ma=(uint32*)origdata; | |
| 2360 mb=data; | |
| 2361 for (n=0; n<count; n++) | |
| 2362 { | |
| 2363 if (tif->tif_flags&TIFF_SWAB) | |
| 2364 TIFFSwabLong(ma); | |
| 2365 maa=*ma++; | |
| 2366 if (tif->tif_flags&TIFF_SWAB) | |
| 2367 TIFFSwabLong(ma); | |
| 2368 mab=*ma++; | |
| 2369 if (mab==0) | |
| 2370 *mb++=0.0; | |
| 2371 else | |
| 2372 *mb++=(float)maa/(float)mab; | |
| 2373 } | |
| 2374 } | |
| 2375 break; | |
| 2376 case TIFF_SRATIONAL: | |
| 2377 { | |
| 2378 uint32* ma; | |
| 2379 int32 maa; | |
| 2380 uint32 mab; | |
| 2381 float* mb; | |
| 2382 uint32 n; | |
| 2383 ma=(uint32*)origdata; | |
| 2384 mb=data; | |
| 2385 for (n=0; n<count; n++) | |
| 2386 { | |
| 2387 if (tif->tif_flags&TIFF_SWAB) | |
| 2388 TIFFSwabLong(ma); | |
| 2389 maa=*(int32*)ma; | |
| 2390 ma++; | |
| 2391 if (tif->tif_flags&TIFF_SWAB) | |
| 2392 TIFFSwabLong(ma); | |
| 2393 mab=*ma++; | |
| 2394 if (mab==0) | |
| 2395 *mb++=0.0; | |
| 2396 else | |
| 2397 *mb++=(float)maa/(float)mab; | |
| 2398 } | |
| 2399 } | |
| 2400 break; | |
| 2401 case TIFF_DOUBLE: | |
| 2402 { | |
| 2403 double* ma; | |
| 2404 float* mb; | |
| 2405 uint32 n; | |
| 2406 if (tif->tif_flags&TIFF_SWAB) | |
| 2407 TIFFSwabArrayOfLong8((uint64*)origdata,c
ount); | |
| 2408 TIFFCvtIEEEDoubleToNative(tif,count,(double*)ori
gdata); | |
| 2409 ma=(double*)origdata; | |
| 2410 mb=data; | |
| 2411 for (n=0; n<count; n++) | |
| 2412 *mb++=(float)(*ma++); | |
| 2413 } | |
| 2414 break; | |
| 2415 } | |
| 2416 _TIFFfree(origdata); | |
| 2417 if (err!=TIFFReadDirEntryErrOk) | |
| 2418 { | |
| 2419 _TIFFfree(data); | |
| 2420 return(err); | |
| 2421 } | |
| 2422 *value=data; | |
| 2423 return(TIFFReadDirEntryErrOk); | |
| 2424 } | |
| 2425 | |
| 2426 static enum TIFFReadDirEntryErr | |
| 2427 TIFFReadDirEntryDoubleArray(TIFF* tif, TIFFDirEntry* direntry, double** value) | |
| 2428 { | |
| 2429 enum TIFFReadDirEntryErr err; | |
| 2430 uint32 count; | |
| 2431 void* origdata; | |
| 2432 double* data; | |
| 2433 switch (direntry->tdir_type) | |
| 2434 { | |
| 2435 case TIFF_BYTE: | |
| 2436 case TIFF_SBYTE: | |
| 2437 case TIFF_SHORT: | |
| 2438 case TIFF_SSHORT: | |
| 2439 case TIFF_LONG: | |
| 2440 case TIFF_SLONG: | |
| 2441 case TIFF_LONG8: | |
| 2442 case TIFF_SLONG8: | |
| 2443 case TIFF_RATIONAL: | |
| 2444 case TIFF_SRATIONAL: | |
| 2445 case TIFF_FLOAT: | |
| 2446 case TIFF_DOUBLE: | |
| 2447 break; | |
| 2448 default: | |
| 2449 return(TIFFReadDirEntryErrType); | |
| 2450 } | |
| 2451 err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata); | |
| 2452 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 2453 { | |
| 2454 *value=0; | |
| 2455 return(err); | |
| 2456 } | |
| 2457 switch (direntry->tdir_type) | |
| 2458 { | |
| 2459 case TIFF_DOUBLE: | |
| 2460 if (tif->tif_flags&TIFF_SWAB) | |
| 2461 TIFFSwabArrayOfLong8((uint64*)origdata,count); | |
| 2462 TIFFCvtIEEEDoubleToNative(tif,count,(double*)origdata); | |
| 2463 *value=(double*)origdata; | |
| 2464 return(TIFFReadDirEntryErrOk); | |
| 2465 } | |
| 2466 data=(double*)_TIFFmalloc(count*sizeof(double)); | |
| 2467 if (data==0) | |
| 2468 { | |
| 2469 _TIFFfree(origdata); | |
| 2470 return(TIFFReadDirEntryErrAlloc); | |
| 2471 } | |
| 2472 switch (direntry->tdir_type) | |
| 2473 { | |
| 2474 case TIFF_BYTE: | |
| 2475 { | |
| 2476 uint8* ma; | |
| 2477 double* mb; | |
| 2478 uint32 n; | |
| 2479 ma=(uint8*)origdata; | |
| 2480 mb=data; | |
| 2481 for (n=0; n<count; n++) | |
| 2482 *mb++=(double)(*ma++); | |
| 2483 } | |
| 2484 break; | |
| 2485 case TIFF_SBYTE: | |
| 2486 { | |
| 2487 int8* ma; | |
| 2488 double* mb; | |
| 2489 uint32 n; | |
| 2490 ma=(int8*)origdata; | |
| 2491 mb=data; | |
| 2492 for (n=0; n<count; n++) | |
| 2493 *mb++=(double)(*ma++); | |
| 2494 } | |
| 2495 break; | |
| 2496 case TIFF_SHORT: | |
| 2497 { | |
| 2498 uint16* ma; | |
| 2499 double* mb; | |
| 2500 uint32 n; | |
| 2501 ma=(uint16*)origdata; | |
| 2502 mb=data; | |
| 2503 for (n=0; n<count; n++) | |
| 2504 { | |
| 2505 if (tif->tif_flags&TIFF_SWAB) | |
| 2506 TIFFSwabShort(ma); | |
| 2507 *mb++=(double)(*ma++); | |
| 2508 } | |
| 2509 } | |
| 2510 break; | |
| 2511 case TIFF_SSHORT: | |
| 2512 { | |
| 2513 int16* ma; | |
| 2514 double* mb; | |
| 2515 uint32 n; | |
| 2516 ma=(int16*)origdata; | |
| 2517 mb=data; | |
| 2518 for (n=0; n<count; n++) | |
| 2519 { | |
| 2520 if (tif->tif_flags&TIFF_SWAB) | |
| 2521 TIFFSwabShort((uint16*)ma); | |
| 2522 *mb++=(double)(*ma++); | |
| 2523 } | |
| 2524 } | |
| 2525 break; | |
| 2526 case TIFF_LONG: | |
| 2527 { | |
| 2528 uint32* ma; | |
| 2529 double* mb; | |
| 2530 uint32 n; | |
| 2531 ma=(uint32*)origdata; | |
| 2532 mb=data; | |
| 2533 for (n=0; n<count; n++) | |
| 2534 { | |
| 2535 if (tif->tif_flags&TIFF_SWAB) | |
| 2536 TIFFSwabLong(ma); | |
| 2537 *mb++=(double)(*ma++); | |
| 2538 } | |
| 2539 } | |
| 2540 break; | |
| 2541 case TIFF_SLONG: | |
| 2542 { | |
| 2543 int32* ma; | |
| 2544 double* mb; | |
| 2545 uint32 n; | |
| 2546 ma=(int32*)origdata; | |
| 2547 mb=data; | |
| 2548 for (n=0; n<count; n++) | |
| 2549 { | |
| 2550 if (tif->tif_flags&TIFF_SWAB) | |
| 2551 TIFFSwabLong((uint32*)ma); | |
| 2552 *mb++=(double)(*ma++); | |
| 2553 } | |
| 2554 } | |
| 2555 break; | |
| 2556 case TIFF_LONG8: | |
| 2557 { | |
| 2558 uint64* ma; | |
| 2559 double* mb; | |
| 2560 uint32 n; | |
| 2561 ma=(uint64*)origdata; | |
| 2562 mb=data; | |
| 2563 for (n=0; n<count; n++) | |
| 2564 { | |
| 2565 if (tif->tif_flags&TIFF_SWAB) | |
| 2566 TIFFSwabLong8(ma); | |
| 2567 #if defined(__WIN32__) && (_MSC_VER < 1500) | |
| 2568 /* | |
| 2569 * XXX: MSVC 6.0 does not support | |
| 2570 * conversion of 64-bit integers into | |
| 2571 * floating point values. | |
| 2572 */ | |
| 2573 *mb++ = _TIFFUInt64ToDouble(*ma++); | |
| 2574 #else | |
| 2575 *mb++ = (double)(*ma++); | |
| 2576 #endif | |
| 2577 } | |
| 2578 } | |
| 2579 break; | |
| 2580 case TIFF_SLONG8: | |
| 2581 { | |
| 2582 int64* ma; | |
| 2583 double* mb; | |
| 2584 uint32 n; | |
| 2585 ma=(int64*)origdata; | |
| 2586 mb=data; | |
| 2587 for (n=0; n<count; n++) | |
| 2588 { | |
| 2589 if (tif->tif_flags&TIFF_SWAB) | |
| 2590 TIFFSwabLong8((uint64*)ma); | |
| 2591 *mb++=(double)(*ma++); | |
| 2592 } | |
| 2593 } | |
| 2594 break; | |
| 2595 case TIFF_RATIONAL: | |
| 2596 { | |
| 2597 uint32* ma; | |
| 2598 uint32 maa; | |
| 2599 uint32 mab; | |
| 2600 double* mb; | |
| 2601 uint32 n; | |
| 2602 ma=(uint32*)origdata; | |
| 2603 mb=data; | |
| 2604 for (n=0; n<count; n++) | |
| 2605 { | |
| 2606 if (tif->tif_flags&TIFF_SWAB) | |
| 2607 TIFFSwabLong(ma); | |
| 2608 maa=*ma++; | |
| 2609 if (tif->tif_flags&TIFF_SWAB) | |
| 2610 TIFFSwabLong(ma); | |
| 2611 mab=*ma++; | |
| 2612 if (mab==0) | |
| 2613 *mb++=0.0; | |
| 2614 else | |
| 2615 *mb++=(double)maa/(double)mab; | |
| 2616 } | |
| 2617 } | |
| 2618 break; | |
| 2619 case TIFF_SRATIONAL: | |
| 2620 { | |
| 2621 uint32* ma; | |
| 2622 int32 maa; | |
| 2623 uint32 mab; | |
| 2624 double* mb; | |
| 2625 uint32 n; | |
| 2626 ma=(uint32*)origdata; | |
| 2627 mb=data; | |
| 2628 for (n=0; n<count; n++) | |
| 2629 { | |
| 2630 if (tif->tif_flags&TIFF_SWAB) | |
| 2631 TIFFSwabLong(ma); | |
| 2632 maa=*(int32*)ma; | |
| 2633 ma++; | |
| 2634 if (tif->tif_flags&TIFF_SWAB) | |
| 2635 TIFFSwabLong(ma); | |
| 2636 mab=*ma++; | |
| 2637 if (mab==0) | |
| 2638 *mb++=0.0; | |
| 2639 else | |
| 2640 *mb++=(double)maa/(double)mab; | |
| 2641 } | |
| 2642 } | |
| 2643 break; | |
| 2644 case TIFF_FLOAT: | |
| 2645 { | |
| 2646 float* ma; | |
| 2647 double* mb; | |
| 2648 uint32 n; | |
| 2649 if (tif->tif_flags&TIFF_SWAB) | |
| 2650 TIFFSwabArrayOfLong((uint32*)origdata,co
unt); | |
| 2651 TIFFCvtIEEEFloatToNative(tif,count,(float*)origd
ata); | |
| 2652 ma=(float*)origdata; | |
| 2653 mb=data; | |
| 2654 for (n=0; n<count; n++) | |
| 2655 *mb++=(double)(*ma++); | |
| 2656 } | |
| 2657 break; | |
| 2658 } | |
| 2659 _TIFFfree(origdata); | |
| 2660 if (err!=TIFFReadDirEntryErrOk) | |
| 2661 { | |
| 2662 _TIFFfree(data); | |
| 2663 return(err); | |
| 2664 } | |
| 2665 *value=data; | |
| 2666 return(TIFFReadDirEntryErrOk); | |
| 2667 } | |
| 2668 | |
| 2669 static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8Array(TIFF* tif, TIFFDirEntr
y* direntry, uint64** value) | |
| 2670 { | |
| 2671 enum TIFFReadDirEntryErr err; | |
| 2672 uint32 count; | |
| 2673 void* origdata; | |
| 2674 uint64* data; | |
| 2675 switch (direntry->tdir_type) | |
| 2676 { | |
| 2677 case TIFF_LONG: | |
| 2678 case TIFF_LONG8: | |
| 2679 case TIFF_IFD: | |
| 2680 case TIFF_IFD8: | |
| 2681 break; | |
| 2682 default: | |
| 2683 return(TIFFReadDirEntryErrType); | |
| 2684 } | |
| 2685 err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata); | |
| 2686 if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) | |
| 2687 { | |
| 2688 *value=0; | |
| 2689 return(err); | |
| 2690 } | |
| 2691 switch (direntry->tdir_type) | |
| 2692 { | |
| 2693 case TIFF_LONG8: | |
| 2694 case TIFF_IFD8: | |
| 2695 *value=(uint64*)origdata; | |
| 2696 if (tif->tif_flags&TIFF_SWAB) | |
| 2697 TIFFSwabArrayOfLong8(*value,count); | |
| 2698 return(TIFFReadDirEntryErrOk); | |
| 2699 } | |
| 2700 data=(uint64*)_TIFFmalloc(count*8); | |
| 2701 if (data==0) | |
| 2702 { | |
| 2703 _TIFFfree(origdata); | |
| 2704 return(TIFFReadDirEntryErrAlloc); | |
| 2705 } | |
| 2706 switch (direntry->tdir_type) | |
| 2707 { | |
| 2708 case TIFF_LONG: | |
| 2709 case TIFF_IFD: | |
| 2710 { | |
| 2711 uint32* ma; | |
| 2712 uint64* mb; | |
| 2713 uint32 n; | |
| 2714 ma=(uint32*)origdata; | |
| 2715 mb=data; | |
| 2716 for (n=0; n<count; n++) | |
| 2717 { | |
| 2718 if (tif->tif_flags&TIFF_SWAB) | |
| 2719 TIFFSwabLong(ma); | |
| 2720 *mb++=(uint64)(*ma++); | |
| 2721 } | |
| 2722 } | |
| 2723 break; | |
| 2724 } | |
| 2725 _TIFFfree(origdata); | |
| 2726 if (err!=TIFFReadDirEntryErrOk) | |
| 2727 { | |
| 2728 _TIFFfree(data); | |
| 2729 return(err); | |
| 2730 } | |
| 2731 *value=data; | |
| 2732 return(TIFFReadDirEntryErrOk); | |
| 2733 } | |
| 2734 | |
| 2735 static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleShort(TIFF* tif, TIFFDi
rEntry* direntry, uint16* value) | |
| 2736 { | |
| 2737 enum TIFFReadDirEntryErr err; | |
| 2738 uint16* m; | |
| 2739 uint16* na; | |
| 2740 uint16 nb; | |
| 2741 if (direntry->tdir_count<(uint64)tif->tif_dir.td_samplesperpixel) | |
| 2742 return(TIFFReadDirEntryErrCount); | |
| 2743 err=TIFFReadDirEntryShortArray(tif,direntry,&m); | |
| 2744 if (err!=TIFFReadDirEntryErrOk) | |
| 2745 return(err); | |
| 2746 na=m; | |
| 2747 nb=tif->tif_dir.td_samplesperpixel; | |
| 2748 *value=*na++; | |
| 2749 nb--; | |
| 2750 while (nb>0) | |
| 2751 { | |
| 2752 if (*na++!=*value) | |
| 2753 { | |
| 2754 err=TIFFReadDirEntryErrPsdif; | |
| 2755 break; | |
| 2756 } | |
| 2757 nb--; | |
| 2758 } | |
| 2759 _TIFFfree(m); | |
| 2760 return(err); | |
| 2761 } | |
| 2762 | |
| 2763 #if 0 | |
| 2764 static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleDouble(TIFF* tif, TIFFD
irEntry* direntry, double* value) | |
| 2765 { | |
| 2766 enum TIFFReadDirEntryErr err; | |
| 2767 double* m; | |
| 2768 double* na; | |
| 2769 uint16 nb; | |
| 2770 if (direntry->tdir_count<(uint64)tif->tif_dir.td_samplesperpixel) | |
| 2771 return(TIFFReadDirEntryErrCount); | |
| 2772 err=TIFFReadDirEntryDoubleArray(tif,direntry,&m); | |
| 2773 if (err!=TIFFReadDirEntryErrOk) | |
| 2774 return(err); | |
| 2775 na=m; | |
| 2776 nb=tif->tif_dir.td_samplesperpixel; | |
| 2777 *value=*na++; | |
| 2778 nb--; | |
| 2779 while (nb>0) | |
| 2780 { | |
| 2781 if (*na++!=*value) | |
| 2782 { | |
| 2783 err=TIFFReadDirEntryErrPsdif; | |
| 2784 break; | |
| 2785 } | |
| 2786 nb--; | |
| 2787 } | |
| 2788 _TIFFfree(m); | |
| 2789 return(err); | |
| 2790 } | |
| 2791 #endif | |
| 2792 | |
| 2793 static void TIFFReadDirEntryCheckedByte(TIFF* tif, TIFFDirEntry* direntry, uint8
* value) | |
| 2794 { | |
| 2795 (void) tif; | |
| 2796 *value=*(uint8*)(&direntry->tdir_offset); | |
| 2797 } | |
| 2798 | |
| 2799 static void TIFFReadDirEntryCheckedSbyte(TIFF* tif, TIFFDirEntry* direntry, int8
* value) | |
| 2800 { | |
| 2801 (void) tif; | |
| 2802 *value=*(int8*)(&direntry->tdir_offset); | |
| 2803 } | |
| 2804 | |
| 2805 static void TIFFReadDirEntryCheckedShort(TIFF* tif, TIFFDirEntry* direntry, uint
16* value) | |
| 2806 { | |
| 2807 *value = direntry->tdir_offset.toff_short; | |
| 2808 /* *value=*(uint16*)(&direntry->tdir_offset); */ | |
| 2809 if (tif->tif_flags&TIFF_SWAB) | |
| 2810 TIFFSwabShort(value); | |
| 2811 } | |
| 2812 | |
| 2813 static void TIFFReadDirEntryCheckedSshort(TIFF* tif, TIFFDirEntry* direntry, int
16* value) | |
| 2814 { | |
| 2815 *value=*(int16*)(&direntry->tdir_offset); | |
| 2816 if (tif->tif_flags&TIFF_SWAB) | |
| 2817 TIFFSwabShort((uint16*)value); | |
| 2818 } | |
| 2819 | |
| 2820 static void TIFFReadDirEntryCheckedLong(TIFF* tif, TIFFDirEntry* direntry, uint3
2* value) | |
| 2821 { | |
| 2822 *value=*(uint32*)(&direntry->tdir_offset); | |
| 2823 if (tif->tif_flags&TIFF_SWAB) | |
| 2824 TIFFSwabLong(value); | |
| 2825 } | |
| 2826 | |
| 2827 static void TIFFReadDirEntryCheckedSlong(TIFF* tif, TIFFDirEntry* direntry, int3
2* value) | |
| 2828 { | |
| 2829 *value=*(int32*)(&direntry->tdir_offset); | |
| 2830 if (tif->tif_flags&TIFF_SWAB) | |
| 2831 TIFFSwabLong((uint32*)value); | |
| 2832 } | |
| 2833 | |
| 2834 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedLong8(TIFF* tif, TIFFDirE
ntry* direntry, uint64* value) | |
| 2835 { | |
| 2836 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 2837 { | |
| 2838 enum TIFFReadDirEntryErr err; | |
| 2839 uint32 offset = direntry->tdir_offset.toff_long; | |
| 2840 if (tif->tif_flags&TIFF_SWAB) | |
| 2841 TIFFSwabLong(&offset); | |
| 2842 err=TIFFReadDirEntryData(tif,offset,8,value); | |
| 2843 if (err!=TIFFReadDirEntryErrOk) | |
| 2844 return(err); | |
| 2845 } | |
| 2846 else | |
| 2847 *value = direntry->tdir_offset.toff_long8; | |
| 2848 if (tif->tif_flags&TIFF_SWAB) | |
| 2849 TIFFSwabLong8(value); | |
| 2850 return(TIFFReadDirEntryErrOk); | |
| 2851 } | |
| 2852 | |
| 2853 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSlong8(TIFF* tif, TIFFDir
Entry* direntry, int64* value) | |
| 2854 { | |
| 2855 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 2856 { | |
| 2857 enum TIFFReadDirEntryErr err; | |
| 2858 uint32 offset = direntry->tdir_offset.toff_long; | |
| 2859 if (tif->tif_flags&TIFF_SWAB) | |
| 2860 TIFFSwabLong(&offset); | |
| 2861 err=TIFFReadDirEntryData(tif,offset,8,value); | |
| 2862 if (err!=TIFFReadDirEntryErrOk) | |
| 2863 return(err); | |
| 2864 } | |
| 2865 else | |
| 2866 *value=*(int64*)(&direntry->tdir_offset); | |
| 2867 if (tif->tif_flags&TIFF_SWAB) | |
| 2868 TIFFSwabLong8((uint64*)value); | |
| 2869 return(TIFFReadDirEntryErrOk); | |
| 2870 } | |
| 2871 | |
| 2872 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFD
irEntry* direntry, double* value) | |
| 2873 { | |
| 2874 UInt64Aligned_t m; | |
| 2875 | |
| 2876 assert(sizeof(double)==8); | |
| 2877 assert(sizeof(uint64)==8); | |
| 2878 assert(sizeof(uint32)==4); | |
| 2879 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 2880 { | |
| 2881 enum TIFFReadDirEntryErr err; | |
| 2882 uint32 offset = direntry->tdir_offset.toff_long; | |
| 2883 if (tif->tif_flags&TIFF_SWAB) | |
| 2884 TIFFSwabLong(&offset); | |
| 2885 err=TIFFReadDirEntryData(tif,offset,8,m.i); | |
| 2886 if (err!=TIFFReadDirEntryErrOk) | |
| 2887 return(err); | |
| 2888 } | |
| 2889 else | |
| 2890 m.l = direntry->tdir_offset.toff_long8; | |
| 2891 if (tif->tif_flags&TIFF_SWAB) | |
| 2892 TIFFSwabArrayOfLong(m.i,2); | |
| 2893 if (m.i[0]==0) | |
| 2894 *value=0.0; | |
| 2895 else | |
| 2896 *value=(double)m.i[0]/(double)m.i[1]; | |
| 2897 return(TIFFReadDirEntryErrOk); | |
| 2898 } | |
| 2899 | |
| 2900 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFF
DirEntry* direntry, double* value) | |
| 2901 { | |
| 2902 UInt64Aligned_t m; | |
| 2903 assert(sizeof(double)==8); | |
| 2904 assert(sizeof(uint64)==8); | |
| 2905 assert(sizeof(int32)==4); | |
| 2906 assert(sizeof(uint32)==4); | |
| 2907 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 2908 { | |
| 2909 enum TIFFReadDirEntryErr err; | |
| 2910 uint32 offset = direntry->tdir_offset.toff_long; | |
| 2911 if (tif->tif_flags&TIFF_SWAB) | |
| 2912 TIFFSwabLong(&offset); | |
| 2913 err=TIFFReadDirEntryData(tif,offset,8,m.i); | |
| 2914 if (err!=TIFFReadDirEntryErrOk) | |
| 2915 return(err); | |
| 2916 } | |
| 2917 else | |
| 2918 m.l=direntry->tdir_offset.toff_long8; | |
| 2919 if (tif->tif_flags&TIFF_SWAB) | |
| 2920 TIFFSwabArrayOfLong(m.i,2); | |
| 2921 if ((int32)m.i[0]==0) | |
| 2922 *value=0.0; | |
| 2923 else | |
| 2924 *value=(double)((int32)m.i[0])/(double)m.i[1]; | |
| 2925 return(TIFFReadDirEntryErrOk); | |
| 2926 } | |
| 2927 | |
| 2928 static void TIFFReadDirEntryCheckedFloat(TIFF* tif, TIFFDirEntry* direntry, floa
t* value) | |
| 2929 { | |
| 2930 union | |
| 2931 { | |
| 2932 float f; | |
| 2933 uint32 i; | |
| 2934 } float_union; | |
| 2935 assert(sizeof(float)==4); | |
| 2936 assert(sizeof(uint32)==4); | |
| 2937 assert(sizeof(float_union)==4); | |
| 2938 float_union.i=*(uint32*)(&direntry->tdir_offset); | |
| 2939 *value=float_union.f; | |
| 2940 if (tif->tif_flags&TIFF_SWAB) | |
| 2941 TIFFSwabLong((uint32*)value); | |
| 2942 } | |
| 2943 | |
| 2944 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedDouble(TIFF* tif, TIFFDir
Entry* direntry, double* value) | |
| 2945 { | |
| 2946 assert(sizeof(double)==8); | |
| 2947 assert(sizeof(uint64)==8); | |
| 2948 assert(sizeof(UInt64Aligned_t)==8); | |
| 2949 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 2950 { | |
| 2951 enum TIFFReadDirEntryErr err; | |
| 2952 uint32 offset = direntry->tdir_offset.toff_long; | |
| 2953 if (tif->tif_flags&TIFF_SWAB) | |
| 2954 TIFFSwabLong(&offset); | |
| 2955 err=TIFFReadDirEntryData(tif,offset,8,value); | |
| 2956 if (err!=TIFFReadDirEntryErrOk) | |
| 2957 return(err); | |
| 2958 } | |
| 2959 else | |
| 2960 { | |
| 2961 UInt64Aligned_t uint64_union; | |
| 2962 uint64_union.l=direntry->tdir_offset.toff_long8; | |
| 2963 *value=uint64_union.d; | |
| 2964 } | |
| 2965 if (tif->tif_flags&TIFF_SWAB) | |
| 2966 TIFFSwabLong8((uint64*)value); | |
| 2967 return(TIFFReadDirEntryErrOk); | |
| 2968 } | |
| 2969 | |
| 2970 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSbyte(int8 value) | |
| 2971 { | |
| 2972 if (value<0) | |
| 2973 return(TIFFReadDirEntryErrRange); | |
| 2974 else | |
| 2975 return(TIFFReadDirEntryErrOk); | |
| 2976 } | |
| 2977 | |
| 2978 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteShort(uint16 value
) | |
| 2979 { | |
| 2980 if (value>0xFF) | |
| 2981 return(TIFFReadDirEntryErrRange); | |
| 2982 else | |
| 2983 return(TIFFReadDirEntryErrOk); | |
| 2984 } | |
| 2985 | |
| 2986 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSshort(int16 value
) | |
| 2987 { | |
| 2988 if ((value<0)||(value>0xFF)) | |
| 2989 return(TIFFReadDirEntryErrRange); | |
| 2990 else | |
| 2991 return(TIFFReadDirEntryErrOk); | |
| 2992 } | |
| 2993 | |
| 2994 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong(uint32 value) | |
| 2995 { | |
| 2996 if (value>0xFF) | |
| 2997 return(TIFFReadDirEntryErrRange); | |
| 2998 else | |
| 2999 return(TIFFReadDirEntryErrOk); | |
| 3000 } | |
| 3001 | |
| 3002 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong(int32 value) | |
| 3003 { | |
| 3004 if ((value<0)||(value>0xFF)) | |
| 3005 return(TIFFReadDirEntryErrRange); | |
| 3006 else | |
| 3007 return(TIFFReadDirEntryErrOk); | |
| 3008 } | |
| 3009 | |
| 3010 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong8(uint64 value
) | |
| 3011 { | |
| 3012 if (value>0xFF) | |
| 3013 return(TIFFReadDirEntryErrRange); | |
| 3014 else | |
| 3015 return(TIFFReadDirEntryErrOk); | |
| 3016 } | |
| 3017 | |
| 3018 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong8(int64 value
) | |
| 3019 { | |
| 3020 if ((value<0)||(value>0xFF)) | |
| 3021 return(TIFFReadDirEntryErrRange); | |
| 3022 else | |
| 3023 return(TIFFReadDirEntryErrOk); | |
| 3024 } | |
| 3025 | |
| 3026 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteByte(uint8 value) | |
| 3027 { | |
| 3028 if (value>0x7F) | |
| 3029 return(TIFFReadDirEntryErrRange); | |
| 3030 else | |
| 3031 return(TIFFReadDirEntryErrOk); | |
| 3032 } | |
| 3033 | |
| 3034 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteShort(uint16 valu
e) | |
| 3035 { | |
| 3036 if (value>0x7F) | |
| 3037 return(TIFFReadDirEntryErrRange); | |
| 3038 else | |
| 3039 return(TIFFReadDirEntryErrOk); | |
| 3040 } | |
| 3041 | |
| 3042 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSshort(int16 valu
e) | |
| 3043 { | |
| 3044 if ((value<-0x80)||(value>0x7F)) | |
| 3045 return(TIFFReadDirEntryErrRange); | |
| 3046 else | |
| 3047 return(TIFFReadDirEntryErrOk); | |
| 3048 } | |
| 3049 | |
| 3050 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong(uint32 value
) | |
| 3051 { | |
| 3052 if (value>0x7F) | |
| 3053 return(TIFFReadDirEntryErrRange); | |
| 3054 else | |
| 3055 return(TIFFReadDirEntryErrOk); | |
| 3056 } | |
| 3057 | |
| 3058 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong(int32 value
) | |
| 3059 { | |
| 3060 if ((value<-0x80)||(value>0x7F)) | |
| 3061 return(TIFFReadDirEntryErrRange); | |
| 3062 else | |
| 3063 return(TIFFReadDirEntryErrOk); | |
| 3064 } | |
| 3065 | |
| 3066 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong8(uint64 valu
e) | |
| 3067 { | |
| 3068 if (value>0x7F) | |
| 3069 return(TIFFReadDirEntryErrRange); | |
| 3070 else | |
| 3071 return(TIFFReadDirEntryErrOk); | |
| 3072 } | |
| 3073 | |
| 3074 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong8(int64 valu
e) | |
| 3075 { | |
| 3076 if ((value<-0x80)||(value>0x7F)) | |
| 3077 return(TIFFReadDirEntryErrRange); | |
| 3078 else | |
| 3079 return(TIFFReadDirEntryErrOk); | |
| 3080 } | |
| 3081 | |
| 3082 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSbyte(int8 value) | |
| 3083 { | |
| 3084 if (value<0) | |
| 3085 return(TIFFReadDirEntryErrRange); | |
| 3086 else | |
| 3087 return(TIFFReadDirEntryErrOk); | |
| 3088 } | |
| 3089 | |
| 3090 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSshort(int16 valu
e) | |
| 3091 { | |
| 3092 if (value<0) | |
| 3093 return(TIFFReadDirEntryErrRange); | |
| 3094 else | |
| 3095 return(TIFFReadDirEntryErrOk); | |
| 3096 } | |
| 3097 | |
| 3098 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong(uint32 value
) | |
| 3099 { | |
| 3100 if (value>0xFFFF) | |
| 3101 return(TIFFReadDirEntryErrRange); | |
| 3102 else | |
| 3103 return(TIFFReadDirEntryErrOk); | |
| 3104 } | |
| 3105 | |
| 3106 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong(int32 value
) | |
| 3107 { | |
| 3108 if ((value<0)||(value>0xFFFF)) | |
| 3109 return(TIFFReadDirEntryErrRange); | |
| 3110 else | |
| 3111 return(TIFFReadDirEntryErrOk); | |
| 3112 } | |
| 3113 | |
| 3114 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong8(uint64 valu
e) | |
| 3115 { | |
| 3116 if (value>0xFFFF) | |
| 3117 return(TIFFReadDirEntryErrRange); | |
| 3118 else | |
| 3119 return(TIFFReadDirEntryErrOk); | |
| 3120 } | |
| 3121 | |
| 3122 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong8(int64 valu
e) | |
| 3123 { | |
| 3124 if ((value<0)||(value>0xFFFF)) | |
| 3125 return(TIFFReadDirEntryErrRange); | |
| 3126 else | |
| 3127 return(TIFFReadDirEntryErrOk); | |
| 3128 } | |
| 3129 | |
| 3130 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortShort(uint16 val
ue) | |
| 3131 { | |
| 3132 if (value>0x7FFF) | |
| 3133 return(TIFFReadDirEntryErrRange); | |
| 3134 else | |
| 3135 return(TIFFReadDirEntryErrOk); | |
| 3136 } | |
| 3137 | |
| 3138 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong(uint32 valu
e) | |
| 3139 { | |
| 3140 if (value>0x7FFF) | |
| 3141 return(TIFFReadDirEntryErrRange); | |
| 3142 else | |
| 3143 return(TIFFReadDirEntryErrOk); | |
| 3144 } | |
| 3145 | |
| 3146 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong(int32 valu
e) | |
| 3147 { | |
| 3148 if ((value<-0x8000)||(value>0x7FFF)) | |
| 3149 return(TIFFReadDirEntryErrRange); | |
| 3150 else | |
| 3151 return(TIFFReadDirEntryErrOk); | |
| 3152 } | |
| 3153 | |
| 3154 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong8(uint64 val
ue) | |
| 3155 { | |
| 3156 if (value>0x7FFF) | |
| 3157 return(TIFFReadDirEntryErrRange); | |
| 3158 else | |
| 3159 return(TIFFReadDirEntryErrOk); | |
| 3160 } | |
| 3161 | |
| 3162 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong8(int64 val
ue) | |
| 3163 { | |
| 3164 if ((value<-0x8000)||(value>0x7FFF)) | |
| 3165 return(TIFFReadDirEntryErrRange); | |
| 3166 else | |
| 3167 return(TIFFReadDirEntryErrOk); | |
| 3168 } | |
| 3169 | |
| 3170 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSbyte(int8 value) | |
| 3171 { | |
| 3172 if (value<0) | |
| 3173 return(TIFFReadDirEntryErrRange); | |
| 3174 else | |
| 3175 return(TIFFReadDirEntryErrOk); | |
| 3176 } | |
| 3177 | |
| 3178 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSshort(int16 value
) | |
| 3179 { | |
| 3180 if (value<0) | |
| 3181 return(TIFFReadDirEntryErrRange); | |
| 3182 else | |
| 3183 return(TIFFReadDirEntryErrOk); | |
| 3184 } | |
| 3185 | |
| 3186 static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong(int32 value) | |
| 3187 { | |
| 3188 if (value<0) | |
| 3189 return(TIFFReadDirEntryErrRange); | |
| 3190 else | |
| 3191 return(TIFFReadDirEntryErrOk); | |
| 3192 } | |
| 3193 | |
| 3194 /* | |
| 3195 * Largest 32-bit unsigned integer value. | |
| 3196 */ | |
| 3197 #if defined(__WIN32__) && defined(_MSC_VER) | |
| 3198 # define TIFF_UINT32_MAX 0xFFFFFFFFI64 | |
| 3199 #else | |
| 3200 # define TIFF_UINT32_MAX 0xFFFFFFFFLL | |
| 3201 #endif | |
| 3202 | |
| 3203 static enum TIFFReadDirEntryErr | |
| 3204 TIFFReadDirEntryCheckRangeLongLong8(uint64 value) | |
| 3205 { | |
| 3206 if (value > TIFF_UINT32_MAX) | |
| 3207 return(TIFFReadDirEntryErrRange); | |
| 3208 else | |
| 3209 return(TIFFReadDirEntryErrOk); | |
| 3210 } | |
| 3211 | |
| 3212 static enum TIFFReadDirEntryErr | |
| 3213 TIFFReadDirEntryCheckRangeLongSlong8(int64 value) | |
| 3214 { | |
| 3215 if ((value<0) || (value > TIFF_UINT32_MAX)) | |
| 3216 return(TIFFReadDirEntryErrRange); | |
| 3217 else | |
| 3218 return(TIFFReadDirEntryErrOk); | |
| 3219 } | |
| 3220 | |
| 3221 #undef TIFF_UINT32_MAX | |
| 3222 | |
| 3223 static enum TIFFReadDirEntryErr | |
| 3224 TIFFReadDirEntryCheckRangeSlongLong(uint32 value) | |
| 3225 { | |
| 3226 if (value > 0x7FFFFFFFUL) | |
| 3227 return(TIFFReadDirEntryErrRange); | |
| 3228 else | |
| 3229 return(TIFFReadDirEntryErrOk); | |
| 3230 } | |
| 3231 | |
| 3232 static enum TIFFReadDirEntryErr | |
| 3233 TIFFReadDirEntryCheckRangeSlongLong8(uint64 value) | |
| 3234 { | |
| 3235 if (value > 0x7FFFFFFFUL) | |
| 3236 return(TIFFReadDirEntryErrRange); | |
| 3237 else | |
| 3238 return(TIFFReadDirEntryErrOk); | |
| 3239 } | |
| 3240 | |
| 3241 static enum TIFFReadDirEntryErr | |
| 3242 TIFFReadDirEntryCheckRangeSlongSlong8(int64 value) | |
| 3243 { | |
| 3244 if ((value < 0L-0x80000000L) || (value > 0x7FFFFFFFL)) | |
| 3245 return(TIFFReadDirEntryErrRange); | |
| 3246 else | |
| 3247 return(TIFFReadDirEntryErrOk); | |
| 3248 } | |
| 3249 | |
| 3250 static enum TIFFReadDirEntryErr | |
| 3251 TIFFReadDirEntryCheckRangeLong8Sbyte(int8 value) | |
| 3252 { | |
| 3253 if (value < 0) | |
| 3254 return(TIFFReadDirEntryErrRange); | |
| 3255 else | |
| 3256 return(TIFFReadDirEntryErrOk); | |
| 3257 } | |
| 3258 | |
| 3259 static enum TIFFReadDirEntryErr | |
| 3260 TIFFReadDirEntryCheckRangeLong8Sshort(int16 value) | |
| 3261 { | |
| 3262 if (value < 0) | |
| 3263 return(TIFFReadDirEntryErrRange); | |
| 3264 else | |
| 3265 return(TIFFReadDirEntryErrOk); | |
| 3266 } | |
| 3267 | |
| 3268 static enum TIFFReadDirEntryErr | |
| 3269 TIFFReadDirEntryCheckRangeLong8Slong(int32 value) | |
| 3270 { | |
| 3271 if (value < 0) | |
| 3272 return(TIFFReadDirEntryErrRange); | |
| 3273 else | |
| 3274 return(TIFFReadDirEntryErrOk); | |
| 3275 } | |
| 3276 | |
| 3277 static enum TIFFReadDirEntryErr | |
| 3278 TIFFReadDirEntryCheckRangeLong8Slong8(int64 value) | |
| 3279 { | |
| 3280 if (value < 0) | |
| 3281 return(TIFFReadDirEntryErrRange); | |
| 3282 else | |
| 3283 return(TIFFReadDirEntryErrOk); | |
| 3284 } | |
| 3285 | |
| 3286 /* | |
| 3287 * Largest 64-bit signed integer value. | |
| 3288 */ | |
| 3289 #if defined(__WIN32__) && defined(_MSC_VER) | |
| 3290 # define TIFF_INT64_MAX 0x7FFFFFFFFFFFFFFFI64 | |
| 3291 #else | |
| 3292 # define TIFF_INT64_MAX 0x7FFFFFFFFFFFFFFFLL | |
| 3293 #endif | |
| 3294 | |
| 3295 static enum TIFFReadDirEntryErr | |
| 3296 TIFFReadDirEntryCheckRangeSlong8Long8(uint64 value) | |
| 3297 { | |
| 3298 if (value > TIFF_INT64_MAX) | |
| 3299 return(TIFFReadDirEntryErrRange); | |
| 3300 else | |
| 3301 return(TIFFReadDirEntryErrOk); | |
| 3302 } | |
| 3303 | |
| 3304 #undef TIFF_INT64_MAX | |
| 3305 | |
| 3306 static enum TIFFReadDirEntryErr | |
| 3307 TIFFReadDirEntryData(TIFF* tif, uint64 offset, tmsize_t size, void* dest) | |
| 3308 { | |
| 3309 assert(size>0); | |
| 3310 if (!isMapped(tif)) { | |
| 3311 if (!SeekOK(tif,offset)) | |
| 3312 return(TIFFReadDirEntryErrIo); | |
| 3313 if (!ReadOK(tif,dest,size)) | |
| 3314 return(TIFFReadDirEntryErrIo); | |
| 3315 } else { | |
| 3316 size_t ma,mb; | |
| 3317 ma=(size_t)offset; | |
| 3318 mb=ma+size; | |
| 3319 if (((uint64)ma!=offset) | |
| 3320 || (mb < ma) | |
| 3321 || (mb - ma != (size_t) size) | |
| 3322 || (mb < (size_t)size) | |
| 3323 || (mb > (size_t)tif->tif_size) | |
| 3324 ) | |
| 3325 return(TIFFReadDirEntryErrIo); | |
| 3326 _TIFFmemcpy(dest,tif->tif_base+ma,size); | |
| 3327 } | |
| 3328 return(TIFFReadDirEntryErrOk); | |
| 3329 } | |
| 3330 | |
| 3331 static void TIFFReadDirEntryOutputErr(TIFF* tif, enum TIFFReadDirEntryErr err, c
onst char* module, const char* tagname, int recover) | |
| 3332 { | |
| 3333 if (!recover) { | |
| 3334 switch (err) { | |
| 3335 case TIFFReadDirEntryErrCount: | |
| 3336 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3337 "Incorrect count for \"%s\"", | |
| 3338 tagname); | |
| 3339 break; | |
| 3340 case TIFFReadDirEntryErrType: | |
| 3341 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3342 "Incompatible type for \"%s\"", | |
| 3343 tagname); | |
| 3344 break; | |
| 3345 case TIFFReadDirEntryErrIo: | |
| 3346 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3347 "IO error during reading of \"%s\""
, | |
| 3348 tagname); | |
| 3349 break; | |
| 3350 case TIFFReadDirEntryErrRange: | |
| 3351 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3352 "Incorrect value for \"%s\"", | |
| 3353 tagname); | |
| 3354 break; | |
| 3355 case TIFFReadDirEntryErrPsdif: | |
| 3356 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3357 "Cannot handle different values per sample for \"%s\"", | |
| 3358 tagname); | |
| 3359 break; | |
| 3360 case TIFFReadDirEntryErrSizesan: | |
| 3361 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3362 "Sanity check on size of \"%s\" value failed", | |
| 3363 tagname); | |
| 3364 break; | |
| 3365 case TIFFReadDirEntryErrAlloc: | |
| 3366 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3367 "Out of memory reading of \"%s\"", | |
| 3368 tagname); | |
| 3369 break; | |
| 3370 default: | |
| 3371 assert(0); /* we should never get here */ | |
| 3372 break; | |
| 3373 } | |
| 3374 } else { | |
| 3375 switch (err) { | |
| 3376 case TIFFReadDirEntryErrCount: | |
| 3377 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3378 "Incorrect count for \"%s\"; tag ignored", | |
| 3379 tagname); | |
| 3380 break; | |
| 3381 case TIFFReadDirEntryErrType: | |
| 3382 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3383 "Incompatible type for \"%s\"; tag ignored", | |
| 3384 tagname); | |
| 3385 break; | |
| 3386 case TIFFReadDirEntryErrIo: | |
| 3387 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3388 "IO error during reading of \"%s\"; tag ignored", | |
| 3389 tagname); | |
| 3390 break; | |
| 3391 case TIFFReadDirEntryErrRange: | |
| 3392 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3393 "Incorrect value for \"%s\"; tag ignored", | |
| 3394 tagname); | |
| 3395 break; | |
| 3396 case TIFFReadDirEntryErrPsdif: | |
| 3397 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3398 "Cannot handle different values per sample for \"%s\"; tag ignored", | |
| 3399 tagname); | |
| 3400 break; | |
| 3401 case TIFFReadDirEntryErrSizesan: | |
| 3402 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3403 "Sanity check on size of \"%s\" value failed; tag ignored", | |
| 3404 tagname); | |
| 3405 break; | |
| 3406 case TIFFReadDirEntryErrAlloc: | |
| 3407 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3408 "Out of memory reading of \"%s\"; tag ignored", | |
| 3409 tagname); | |
| 3410 break; | |
| 3411 default: | |
| 3412 assert(0); /* we should never get here */ | |
| 3413 break; | |
| 3414 } | |
| 3415 } | |
| 3416 } | |
| 3417 | |
| 3418 /* | |
| 3419 * Read the next TIFF directory from a file and convert it to the internal | |
| 3420 * format. We read directories sequentially. | |
| 3421 */ | |
| 3422 int | |
| 3423 TIFFReadDirectory(TIFF* tif) | |
| 3424 { | |
| 3425 static const char module[] = "TIFFReadDirectory"; | |
| 3426 TIFFDirEntry* dir; | |
| 3427 uint16 dircount; | |
| 3428 TIFFDirEntry* dp; | |
| 3429 uint16 di; | |
| 3430 const TIFFField* fip; | |
| 3431 uint32 fii=FAILED_FII; | |
| 3432 toff_t nextdiroff; | |
| 3433 tif->tif_diroff=tif->tif_nextdiroff; | |
| 3434 if (!TIFFCheckDirOffset(tif,tif->tif_nextdiroff)) | |
| 3435 return 0; /* last offset or bad offset (IFD looping) *
/ | |
| 3436 (*tif->tif_cleanup)(tif); /* cleanup any previous compression state */ | |
| 3437 tif->tif_curdir++; | |
| 3438 nextdiroff = tif->tif_nextdiroff; | |
| 3439 dircount=TIFFFetchDirectory(tif,nextdiroff,&dir,&tif->tif_nextdiroff); | |
| 3440 if (!dircount) | |
| 3441 { | |
| 3442 TIFFErrorExt(tif->tif_clientdata,module, | |
| 3443 "Failed to read directory at offset " TIFF_UINT64_FORMAT,nex
tdiroff); | |
| 3444 return 0; | |
| 3445 } | |
| 3446 TIFFReadDirectoryCheckOrder(tif,dir,dircount); | |
| 3447 | |
| 3448 /* | |
| 3449 * Mark duplicates of any tag to be ignored (bugzilla 1994) | |
| 3450 * to avoid certain pathological problems. | |
| 3451 */ | |
| 3452 { | |
| 3453 TIFFDirEntry* ma; | |
| 3454 uint16 mb; | |
| 3455 for (ma=dir, mb=0; mb<dircount; ma++, mb++) | |
| 3456 { | |
| 3457 TIFFDirEntry* na; | |
| 3458 uint16 nb; | |
| 3459 for (na=ma+1, nb=mb+1; nb<dircount; na++, nb++) | |
| 3460 { | |
| 3461 if (ma->tdir_tag==na->tdir_tag) | |
| 3462 na->tdir_tag=IGNORE; | |
| 3463 } | |
| 3464 } | |
| 3465 } | |
| 3466 | |
| 3467 tif->tif_flags &= ~TIFF_BEENWRITING; /* reset before new dir */ | |
| 3468 tif->tif_flags &= ~TIFF_BUF4WRITE; /* reset before new dir */ | |
| 3469 /* free any old stuff and reinit */ | |
| 3470 TIFFFreeDirectory(tif); | |
| 3471 TIFFDefaultDirectory(tif); | |
| 3472 /* | |
| 3473 * Electronic Arts writes gray-scale TIFF files | |
| 3474 * without a PlanarConfiguration directory entry. | |
| 3475 * Thus we setup a default value here, even though | |
| 3476 * the TIFF spec says there is no default value. | |
| 3477 */ | |
| 3478 TIFFSetField(tif,TIFFTAG_PLANARCONFIG,PLANARCONFIG_CONTIG); | |
| 3479 /* | |
| 3480 * Setup default value and then make a pass over | |
| 3481 * the fields to check type and tag information, | |
| 3482 * and to extract info required to size data | |
| 3483 * structures. A second pass is made afterwards | |
| 3484 * to read in everthing not taken in the first pass. | |
| 3485 * But we must process the Compression tag first | |
| 3486 * in order to merge in codec-private tag definitions (otherwise | |
| 3487 * we may get complaints about unknown tags). However, the | |
| 3488 * Compression tag may be dependent on the SamplesPerPixel | |
| 3489 * tag value because older TIFF specs permited Compression | |
| 3490 * to be written as a SamplesPerPixel-count tag entry. | |
| 3491 * Thus if we don't first figure out the correct SamplesPerPixel | |
| 3492 * tag value then we may end up ignoring the Compression tag | |
| 3493 * value because it has an incorrect count value (if the | |
| 3494 * true value of SamplesPerPixel is not 1). | |
| 3495 */ | |
| 3496 dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_SAMPLESPERPIXEL); | |
| 3497 if (dp) | |
| 3498 { | |
| 3499 if (!TIFFFetchNormalTag(tif,dp,0)) | |
| 3500 goto bad; | |
| 3501 dp->tdir_tag=IGNORE; | |
| 3502 } | |
| 3503 dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_COMPRESSION); | |
| 3504 if (dp) | |
| 3505 { | |
| 3506 /* | |
| 3507 * The 5.0 spec says the Compression tag has one value, while | |
| 3508 * earlier specs say it has one value per sample. Because of | |
| 3509 * this, we accept the tag if one value is supplied with either | |
| 3510 * count. | |
| 3511 */ | |
| 3512 uint16 value; | |
| 3513 enum TIFFReadDirEntryErr err; | |
| 3514 err=TIFFReadDirEntryShort(tif,dp,&value); | |
| 3515 if (err==TIFFReadDirEntryErrCount) | |
| 3516 err=TIFFReadDirEntryPersampleShort(tif,dp,&value); | |
| 3517 if (err!=TIFFReadDirEntryErrOk) | |
| 3518 { | |
| 3519 TIFFReadDirEntryOutputErr(tif,err,module,"Compression",0
); | |
| 3520 goto bad; | |
| 3521 } | |
| 3522 if (!TIFFSetField(tif,TIFFTAG_COMPRESSION,value)) | |
| 3523 goto bad; | |
| 3524 dp->tdir_tag=IGNORE; | |
| 3525 } | |
| 3526 else | |
| 3527 { | |
| 3528 if (!TIFFSetField(tif,TIFFTAG_COMPRESSION,COMPRESSION_NONE)) | |
| 3529 goto bad; | |
| 3530 } | |
| 3531 /* | |
| 3532 * First real pass over the directory. | |
| 3533 */ | |
| 3534 for (di=0, dp=dir; di<dircount; di++, dp++) | |
| 3535 { | |
| 3536 if (dp->tdir_tag!=IGNORE) | |
| 3537 { | |
| 3538 TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii); | |
| 3539 if (fii == FAILED_FII) | |
| 3540 { | |
| 3541 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3542 "Unknown field with tag %d (0x%x) encountere
d", | |
| 3543 dp->tdir_tag,dp->tdir_tag); | |
| 3544 /* the following knowingly leaks the | |
| 3545 anonymous field structure */ | |
| 3546 if (!_TIFFMergeFields(tif, | |
| 3547 _TIFFCreateAnonField(tif, | |
| 3548 dp->tdir_tag, | |
| 3549 (TIFFDataType) dp->tdir_type), | |
| 3550 1)) { | |
| 3551 TIFFWarningExt(tif->tif_clientdata, | |
| 3552 module, | |
| 3553 "Registering anonymous field with ta
g %d (0x%x) failed", | |
| 3554 dp->tdir_tag, | |
| 3555 dp->tdir_tag); | |
| 3556 dp->tdir_tag=IGNORE; | |
| 3557 } else { | |
| 3558 TIFFReadDirectoryFindFieldInfo(tif,dp->t
dir_tag,&fii); | |
| 3559 assert(fii != FAILED_FII); | |
| 3560 } | |
| 3561 } | |
| 3562 } | |
| 3563 if (dp->tdir_tag!=IGNORE) | |
| 3564 { | |
| 3565 fip=tif->tif_fields[fii]; | |
| 3566 if (fip->field_bit==FIELD_IGNORE) | |
| 3567 dp->tdir_tag=IGNORE; | |
| 3568 else | |
| 3569 { | |
| 3570 switch (dp->tdir_tag) | |
| 3571 { | |
| 3572 case TIFFTAG_STRIPOFFSETS: | |
| 3573 case TIFFTAG_STRIPBYTECOUNTS: | |
| 3574 case TIFFTAG_TILEOFFSETS: | |
| 3575 case TIFFTAG_TILEBYTECOUNTS: | |
| 3576 TIFFSetFieldBit(tif,fip->field_b
it); | |
| 3577 break; | |
| 3578 case TIFFTAG_IMAGEWIDTH: | |
| 3579 case TIFFTAG_IMAGELENGTH: | |
| 3580 case TIFFTAG_IMAGEDEPTH: | |
| 3581 case TIFFTAG_TILELENGTH: | |
| 3582 case TIFFTAG_TILEWIDTH: | |
| 3583 case TIFFTAG_TILEDEPTH: | |
| 3584 case TIFFTAG_PLANARCONFIG: | |
| 3585 case TIFFTAG_ROWSPERSTRIP: | |
| 3586 case TIFFTAG_EXTRASAMPLES: | |
| 3587 if (!TIFFFetchNormalTag(tif,dp,0
)) | |
| 3588 goto bad; | |
| 3589 dp->tdir_tag=IGNORE; | |
| 3590 break; | |
| 3591 } | |
| 3592 } | |
| 3593 } | |
| 3594 } | |
| 3595 /* | |
| 3596 * XXX: OJPEG hack. | |
| 3597 * If a) compression is OJPEG, b) planarconfig tag says it's separate, | |
| 3598 * c) strip offsets/bytecounts tag are both present and | |
| 3599 * d) both contain exactly one value, then we consistently find | |
| 3600 * that the buggy implementation of the buggy compression scheme | |
| 3601 * matches contig planarconfig best. So we 'fix-up' the tag here | |
| 3602 */ | |
| 3603 if ((tif->tif_dir.td_compression==COMPRESSION_OJPEG)&& | |
| 3604 (tif->tif_dir.td_planarconfig==PLANARCONFIG_SEPARATE)) | |
| 3605 { | |
| 3606 if (!_TIFFFillStriles(tif)) | |
| 3607 goto bad; | |
| 3608 dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_STRIPOFFS
ETS); | |
| 3609 if ((dp!=0)&&(dp->tdir_count==1)) | |
| 3610 { | |
| 3611 dp=TIFFReadDirectoryFindEntry(tif,dir,dircount, | |
| 3612 TIFFTAG_STRIPBYTECOUNTS); | |
| 3613 if ((dp!=0)&&(dp->tdir_count==1)) | |
| 3614 { | |
| 3615 tif->tif_dir.td_planarconfig=PLANARCONFIG_CONTIG
; | |
| 3616 TIFFWarningExt(tif->tif_clientdata,module, | |
| 3617 "Planarconfig tag value assumed incorrect, " | |
| 3618 "assuming data is contig instead of chunky")
; | |
| 3619 } | |
| 3620 } | |
| 3621 } | |
| 3622 /* | |
| 3623 * Allocate directory structure and setup defaults. | |
| 3624 */ | |
| 3625 if (!TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS)) | |
| 3626 { | |
| 3627 MissingRequired(tif,"ImageLength"); | |
| 3628 goto bad; | |
| 3629 } | |
| 3630 /* | |
| 3631 * Setup appropriate structures (by strip or by tile) | |
| 3632 */ | |
| 3633 if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) { | |
| 3634 tif->tif_dir.td_nstrips = TIFFNumberOfStrips(tif); | |
| 3635 tif->tif_dir.td_tilewidth = tif->tif_dir.td_imagewidth; | |
| 3636 tif->tif_dir.td_tilelength = tif->tif_dir.td_rowsperstrip; | |
| 3637 tif->tif_dir.td_tiledepth = tif->tif_dir.td_imagedepth; | |
| 3638 tif->tif_flags &= ~TIFF_ISTILED; | |
| 3639 } else { | |
| 3640 tif->tif_dir.td_nstrips = TIFFNumberOfTiles(tif); | |
| 3641 tif->tif_flags |= TIFF_ISTILED; | |
| 3642 } | |
| 3643 if (!tif->tif_dir.td_nstrips) { | |
| 3644 TIFFErrorExt(tif->tif_clientdata, module, | |
| 3645 "Cannot handle zero number of %s", | |
| 3646 isTiled(tif) ? "tiles" : "strips"); | |
| 3647 goto bad; | |
| 3648 } | |
| 3649 tif->tif_dir.td_stripsperimage = tif->tif_dir.td_nstrips; | |
| 3650 if (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE) | |
| 3651 tif->tif_dir.td_stripsperimage /= tif->tif_dir.td_samplesperpixe
l; | |
| 3652 if (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) { | |
| 3653 if ((tif->tif_dir.td_compression==COMPRESSION_OJPEG) && | |
| 3654 (isTiled(tif)==0) && | |
| 3655 (tif->tif_dir.td_nstrips==1)) { | |
| 3656 /* | |
| 3657 * XXX: OJPEG hack. | |
| 3658 * If a) compression is OJPEG, b) it's not a tiled TIFF, | |
| 3659 * and c) the number of strips is 1, | |
| 3660 * then we tolerate the absence of stripoffsets tag, | |
| 3661 * because, presumably, all required data is in the | |
| 3662 * JpegInterchangeFormat stream. | |
| 3663 */ | |
| 3664 TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); | |
| 3665 } else { | |
| 3666 MissingRequired(tif, | |
| 3667 isTiled(tif) ? "TileOffsets" : "StripOffsets"); | |
| 3668 goto bad; | |
| 3669 } | |
| 3670 } | |
| 3671 /* | |
| 3672 * Second pass: extract other information. | |
| 3673 */ | |
| 3674 for (di=0, dp=dir; di<dircount; di++, dp++) | |
| 3675 { | |
| 3676 switch (dp->tdir_tag) | |
| 3677 { | |
| 3678 case IGNORE: | |
| 3679 break; | |
| 3680 case TIFFTAG_MINSAMPLEVALUE: | |
| 3681 case TIFFTAG_MAXSAMPLEVALUE: | |
| 3682 case TIFFTAG_BITSPERSAMPLE: | |
| 3683 case TIFFTAG_DATATYPE: | |
| 3684 case TIFFTAG_SAMPLEFORMAT: | |
| 3685 /* | |
| 3686 * The MinSampleValue, MaxSampleValue, BitsPerSa
mple | |
| 3687 * DataType and SampleFormat tags are supposed t
o be | |
| 3688 * written as one value/sample, but some vendors | |
| 3689 * incorrectly write one value only -- so we acc
ept | |
| 3690 * that as well (yech). Other vendors write corr
ect | |
| 3691 * value for NumberOfSamples, but incorrect one
for | |
| 3692 * BitsPerSample and friends, and we will read t
his | |
| 3693 * too. | |
| 3694 */ | |
| 3695 { | |
| 3696 uint16 value; | |
| 3697 enum TIFFReadDirEntryErr err; | |
| 3698 err=TIFFReadDirEntryShort(tif,dp,&value)
; | |
| 3699 if (err==TIFFReadDirEntryErrCount) | |
| 3700 err=TIFFReadDirEntryPersampleSho
rt(tif,dp,&value); | |
| 3701 if (err!=TIFFReadDirEntryErrOk) | |
| 3702 { | |
| 3703 fip = TIFFFieldWithTag(tif,dp->t
dir_tag); | |
| 3704 TIFFReadDirEntryOutputErr(tif,er
r,module,fip ? fip->field_name : "unknown tagname",0); | |
| 3705 goto bad; | |
| 3706 } | |
| 3707 if (!TIFFSetField(tif,dp->tdir_tag,value
)) | |
| 3708 goto bad; | |
| 3709 } | |
| 3710 break; | |
| 3711 case TIFFTAG_SMINSAMPLEVALUE: | |
| 3712 case TIFFTAG_SMAXSAMPLEVALUE: | |
| 3713 { | |
| 3714 | |
| 3715 double *data; | |
| 3716 enum TIFFReadDirEntryErr err; | |
| 3717 uint32 saved_flags; | |
| 3718 int m; | |
| 3719 if (dp->tdir_count != (uint64)tif->tif_d
ir.td_samplesperpixel) | |
| 3720 err = TIFFReadDirEntryErrCount; | |
| 3721 else | |
| 3722 err = TIFFReadDirEntryDoubleArra
y(tif, dp, &data); | |
| 3723 if (err!=TIFFReadDirEntryErrOk) | |
| 3724 { | |
| 3725 fip = TIFFFieldWithTag(tif,dp->t
dir_tag); | |
| 3726 TIFFReadDirEntryOutputErr(tif,er
r,module,fip ? fip->field_name : "unknown tagname",0); | |
| 3727 goto bad; | |
| 3728 } | |
| 3729 saved_flags = tif->tif_flags; | |
| 3730 tif->tif_flags |= TIFF_PERSAMPLE; | |
| 3731 m = TIFFSetField(tif,dp->tdir_tag,data); | |
| 3732 tif->tif_flags = saved_flags; | |
| 3733 _TIFFfree(data); | |
| 3734 if (!m) | |
| 3735 goto bad; | |
| 3736 } | |
| 3737 break; | |
| 3738 case TIFFTAG_STRIPOFFSETS: | |
| 3739 case TIFFTAG_TILEOFFSETS: | |
| 3740 #if defined(DEFER_STRILE_LOAD) | |
| 3741 _TIFFmemcpy( &(tif->tif_dir.td_stripoffset_entry
), | |
| 3742 dp, sizeof(TIFFDirEntry) ); | |
| 3743 #else | |
| 3744 if (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_
nstrips,&tif->tif_dir.td_stripoffset)) | |
| 3745 goto bad; | |
| 3746 #endif | |
| 3747 break; | |
| 3748 case TIFFTAG_STRIPBYTECOUNTS: | |
| 3749 case TIFFTAG_TILEBYTECOUNTS: | |
| 3750 #if defined(DEFER_STRILE_LOAD) | |
| 3751 _TIFFmemcpy( &(tif->tif_dir.td_stripbytecount_en
try), | |
| 3752 dp, sizeof(TIFFDirEntry) ); | |
| 3753 #else | |
| 3754 if (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_
nstrips,&tif->tif_dir.td_stripbytecount)) | |
| 3755 goto bad; | |
| 3756 #endif | |
| 3757 break; | |
| 3758 case TIFFTAG_COLORMAP: | |
| 3759 case TIFFTAG_TRANSFERFUNCTION: | |
| 3760 { | |
| 3761 enum TIFFReadDirEntryErr err; | |
| 3762 uint32 countpersample; | |
| 3763 uint32 countrequired; | |
| 3764 uint32 incrementpersample; | |
| 3765 uint16* value=NULL; | |
| 3766 countpersample=(1L<<tif->tif_dir.td_bits
persample); | |
| 3767 if ((dp->tdir_tag==TIFFTAG_TRANSFERFUNCT
ION)&&(dp->tdir_count==(uint64)countpersample)) | |
| 3768 { | |
| 3769 countrequired=countpersample; | |
| 3770 incrementpersample=0; | |
| 3771 } | |
| 3772 else | |
| 3773 { | |
| 3774 countrequired=3*countpersample; | |
| 3775 incrementpersample=countpersampl
e; | |
| 3776 } | |
| 3777 if (dp->tdir_count!=(uint64)countrequire
d) | |
| 3778 err=TIFFReadDirEntryErrCount; | |
| 3779 else | |
| 3780 err=TIFFReadDirEntryShortArray(t
if,dp,&value); | |
| 3781 if (err!=TIFFReadDirEntryErrOk) | |
| 3782 { | |
| 3783 fip = TIFFFieldWithTag(tif,dp->t
dir_tag); | |
| 3784 TIFFReadDirEntryOutputErr(tif,er
r,module,fip ? fip->field_name : "unknown tagname",1); | |
| 3785 } | |
| 3786 else | |
| 3787 { | |
| 3788 TIFFSetField(tif,dp->tdir_tag,va
lue,value+incrementpersample,value+2*incrementpersample); | |
| 3789 _TIFFfree(value); | |
| 3790 } | |
| 3791 } | |
| 3792 break; | |
| 3793 /* BEGIN REV 4.0 COMPATIBILITY */ | |
| 3794 case TIFFTAG_OSUBFILETYPE: | |
| 3795 { | |
| 3796 uint16 valueo; | |
| 3797 uint32 value; | |
| 3798 if (TIFFReadDirEntryShort(tif,dp,&valueo
)==TIFFReadDirEntryErrOk) | |
| 3799 { | |
| 3800 switch (valueo) | |
| 3801 { | |
| 3802 case OFILETYPE_REDUCEDIM
AGE: value=FILETYPE_REDUCEDIMAGE; break; | |
| 3803 case OFILETYPE_PAGE: val
ue=FILETYPE_PAGE; break; | |
| 3804 default: value=0; break; | |
| 3805 } | |
| 3806 if (value!=0) | |
| 3807 TIFFSetField(tif,TIFFTAG
_SUBFILETYPE,value); | |
| 3808 } | |
| 3809 } | |
| 3810 break; | |
| 3811 /* END REV 4.0 COMPATIBILITY */ | |
| 3812 default: | |
| 3813 (void) TIFFFetchNormalTag(tif, dp, TRUE); | |
| 3814 break; | |
| 3815 } | |
| 3816 } | |
| 3817 /* | |
| 3818 * OJPEG hack: | |
| 3819 * - If a) compression is OJPEG, and b) photometric tag is missing, | |
| 3820 * then we consistently find that photometric should be YCbCr | |
| 3821 * - If a) compression is OJPEG, and b) photometric tag says it's RGB, | |
| 3822 * then we consistently find that the buggy implementation of the | |
| 3823 * buggy compression scheme matches photometric YCbCr instead. | |
| 3824 * - If a) compression is OJPEG, and b) bitspersample tag is missing, | |
| 3825 * then we consistently find bitspersample should be 8. | |
| 3826 * - If a) compression is OJPEG, b) samplesperpixel tag is missing, | |
| 3827 * and c) photometric is RGB or YCbCr, then we consistently find | |
| 3828 * samplesperpixel should be 3 | |
| 3829 * - If a) compression is OJPEG, b) samplesperpixel tag is missing, | |
| 3830 * and c) photometric is MINISWHITE or MINISBLACK, then we consistently | |
| 3831 * find samplesperpixel should be 3 | |
| 3832 */ | |
| 3833 if (tif->tif_dir.td_compression==COMPRESSION_OJPEG) | |
| 3834 { | |
| 3835 if (!TIFFFieldSet(tif,FIELD_PHOTOMETRIC)) | |
| 3836 { | |
| 3837 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3838 "Photometric tag is missing, assuming data is YCbCr"
); | |
| 3839 if (!TIFFSetField(tif,TIFFTAG_PHOTOMETRIC,PHOTOMETRIC_YC
BCR)) | |
| 3840 goto bad; | |
| 3841 } | |
| 3842 else if (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB) | |
| 3843 { | |
| 3844 tif->tif_dir.td_photometric=PHOTOMETRIC_YCBCR; | |
| 3845 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3846 "Photometric tag value assumed incorrect, " | |
| 3847 "assuming data is YCbCr instead of RGB"); | |
| 3848 } | |
| 3849 if (!TIFFFieldSet(tif,FIELD_BITSPERSAMPLE)) | |
| 3850 { | |
| 3851 TIFFWarningExt(tif->tif_clientdata,module, | |
| 3852 "BitsPerSample tag is missing, assuming 8 bits per s
ample"); | |
| 3853 if (!TIFFSetField(tif,TIFFTAG_BITSPERSAMPLE,8)) | |
| 3854 goto bad; | |
| 3855 } | |
| 3856 if (!TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL)) | |
| 3857 { | |
| 3858 if (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB) | |
| 3859 { | |
| 3860 TIFFWarningExt(tif->tif_clientdata,module, | |
| 3861 "SamplesPerPixel tag is missing, " | |
| 3862 "assuming correct SamplesPerPixel value is 3
"); | |
| 3863 if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3)
) | |
| 3864 goto bad; | |
| 3865 } | |
| 3866 if (tif->tif_dir.td_photometric==PHOTOMETRIC_YCBCR) | |
| 3867 { | |
| 3868 TIFFWarningExt(tif->tif_clientdata,module, | |
| 3869 "SamplesPerPixel tag is missing, " | |
| 3870 "applying correct SamplesPerPixel value of 3
"); | |
| 3871 if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3)
) | |
| 3872 goto bad; | |
| 3873 } | |
| 3874 else if ((tif->tif_dir.td_photometric==PHOTOMETRIC_MINIS
WHITE) | |
| 3875 || (tif->tif_dir.td_photometric==PHOTOMETRIC_MI
NISBLACK)) | |
| 3876 { | |
| 3877 /* | |
| 3878 * SamplesPerPixel tag is missing, but is not re
quired | |
| 3879 * by spec. Assume correct SamplesPerPixel valu
e of 1. | |
| 3880 */ | |
| 3881 if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,1)
) | |
| 3882 goto bad; | |
| 3883 } | |
| 3884 } | |
| 3885 } | |
| 3886 /* | |
| 3887 * Verify Palette image has a Colormap. | |
| 3888 */ | |
| 3889 if (tif->tif_dir.td_photometric == PHOTOMETRIC_PALETTE && | |
| 3890 !TIFFFieldSet(tif, FIELD_COLORMAP)) { | |
| 3891 if ( tif->tif_dir.td_bitspersample>=8 && tif->tif_dir.td_samples
perpixel==3) | |
| 3892 tif->tif_dir.td_photometric = PHOTOMETRIC_RGB; | |
| 3893 else if (tif->tif_dir.td_bitspersample>=8) | |
| 3894 tif->tif_dir.td_photometric = PHOTOMETRIC_MINISBLACK; | |
| 3895 else { | |
| 3896 MissingRequired(tif, "Colormap"); | |
| 3897 goto bad; | |
| 3898 } | |
| 3899 } | |
| 3900 /* | |
| 3901 * OJPEG hack: | |
| 3902 * We do no further messing with strip/tile offsets/bytecounts in OJPEG | |
| 3903 * TIFFs | |
| 3904 */ | |
| 3905 if (tif->tif_dir.td_compression!=COMPRESSION_OJPEG) | |
| 3906 { | |
| 3907 /* | |
| 3908 * Attempt to deal with a missing StripByteCounts tag. | |
| 3909 */ | |
| 3910 if (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) { | |
| 3911 /* | |
| 3912 * Some manufacturers violate the spec by not giving | |
| 3913 * the size of the strips. In this case, assume there | |
| 3914 * is one uncompressed strip of data. | |
| 3915 */ | |
| 3916 if ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG
&& | |
| 3917 tif->tif_dir.td_nstrips > 1) || | |
| 3918 (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARA
TE && | |
| 3919 tif->tif_dir.td_nstrips != (uint32)tif->tif_dir.td_
samplesperpixel)) { | |
| 3920 MissingRequired(tif, "StripByteCounts"); | |
| 3921 goto bad; | |
| 3922 } | |
| 3923 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3924 "TIFF directory is missing required " | |
| 3925 "\"StripByteCounts\" field, calculating from ima
gelength"); | |
| 3926 if (EstimateStripByteCounts(tif, dir, dircount) < 0) | |
| 3927 goto bad; | |
| 3928 /* | |
| 3929 * Assume we have wrong StripByteCount value (in case | |
| 3930 * of single strip) in following cases: | |
| 3931 * - it is equal to zero along with StripOffset; | |
| 3932 * - it is larger than file itself (in case of uncompressed | |
| 3933 * image); | |
| 3934 * - it is smaller than the size of the bytes per row | |
| 3935 * multiplied on the number of rows. The last case should | |
| 3936 * not be checked in the case of writing new image, | |
| 3937 * because we may do not know the exact strip size | |
| 3938 * until the whole image will be written and directory | |
| 3939 * dumped out. | |
| 3940 */ | |
| 3941 #define BYTECOUNTLOOKSBAD \ | |
| 3942 ( (tif->tif_dir.td_stripbytecount[0] == 0 && tif->tif_dir.td
_stripoffset[0] != 0) || \ | |
| 3943 (tif->tif_dir.td_compression == COMPRESSION_NONE && \ | |
| 3944 tif->tif_dir.td_stripbytecount[0] > TIFFGetFileSize(tif)
- tif->tif_dir.td_stripoffset[0]) || \ | |
| 3945 (tif->tif_mode == O_RDONLY && \ | |
| 3946 tif->tif_dir.td_compression == COMPRESSION_NONE && \ | |
| 3947 tif->tif_dir.td_stripbytecount[0] < TIFFScanlineSize64(ti
f) * tif->tif_dir.td_imagelength) ) | |
| 3948 | |
| 3949 } else if (tif->tif_dir.td_nstrips == 1 | |
| 3950 && _TIFFFillStriles(tif) | |
| 3951 && tif->tif_dir.td_stripoffset[0] != 0 | |
| 3952 && BYTECOUNTLOOKSBAD) { | |
| 3953 /* | |
| 3954 * XXX: Plexus (and others) sometimes give a value of | |
| 3955 * zero for a tag when they don't know what the | |
| 3956 * correct value is! Try and handle the simple case | |
| 3957 * of estimating the size of a one strip image. | |
| 3958 */ | |
| 3959 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3960 "Bogus \"StripByteCounts\" field, ignoring and calcu
lating from imagelength"); | |
| 3961 if(EstimateStripByteCounts(tif, dir, dircount) < 0) | |
| 3962 goto bad; | |
| 3963 | |
| 3964 #if !defined(DEFER_STRILE_LOAD) | |
| 3965 } else if (tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG | |
| 3966 && tif->tif_dir.td_nstrips > 2 | |
| 3967 && tif->tif_dir.td_compression == COMPRESSION_NONE | |
| 3968 && tif->tif_dir.td_stripbytecount[0] != tif->tif_dir.
td_stripbytecount[1] | |
| 3969 && tif->tif_dir.td_stripbytecount[0] != 0 | |
| 3970 && tif->tif_dir.td_stripbytecount[1] != 0 ) { | |
| 3971 /* | |
| 3972 * XXX: Some vendors fill StripByteCount array with | |
| 3973 * absolutely wrong values (it can be equal to | |
| 3974 * StripOffset array, for example). Catch this case | |
| 3975 * here. | |
| 3976 * | |
| 3977 * We avoid this check if deferring strile loading | |
| 3978 * as it would always force us to load the strip/tile | |
| 3979 * information. | |
| 3980 */ | |
| 3981 TIFFWarningExt(tif->tif_clientdata, module, | |
| 3982 "Wrong \"StripByteCounts\" field, ignoring and calcu
lating from imagelength"); | |
| 3983 if (EstimateStripByteCounts(tif, dir, dircount) < 0) | |
| 3984 goto bad; | |
| 3985 #endif /* !defined(DEFER_STRILE_LOAD) */ | |
| 3986 } | |
| 3987 } | |
| 3988 if (dir) | |
| 3989 { | |
| 3990 _TIFFfree(dir); | |
| 3991 dir=NULL; | |
| 3992 } | |
| 3993 if (!TIFFFieldSet(tif, FIELD_MAXSAMPLEVALUE)) | |
| 3994 { | |
| 3995 if (tif->tif_dir.td_bitspersample>=16) | |
| 3996 tif->tif_dir.td_maxsamplevalue=0xFFFF; | |
| 3997 else | |
| 3998 tif->tif_dir.td_maxsamplevalue = (uint16)((1L<<tif->tif_
dir.td_bitspersample)-1); | |
| 3999 } | |
| 4000 /* | |
| 4001 * XXX: We can optimize checking for the strip bounds using the sorted | |
| 4002 * bytecounts array. See also comments for TIFFAppendToStrip() | |
| 4003 * function in tif_write.c. | |
| 4004 */ | |
| 4005 #if !defined(DEFER_STRILE_LOAD) | |
| 4006 if (tif->tif_dir.td_nstrips > 1) { | |
| 4007 uint32 strip; | |
| 4008 | |
| 4009 tif->tif_dir.td_stripbytecountsorted = 1; | |
| 4010 for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) { | |
| 4011 if (tif->tif_dir.td_stripoffset[strip - 1] > | |
| 4012 tif->tif_dir.td_stripoffset[strip]) { | |
| 4013 tif->tif_dir.td_stripbytecountsorted = 0; | |
| 4014 break; | |
| 4015 } | |
| 4016 } | |
| 4017 } | |
| 4018 #endif /* !defined(DEFER_STRILE_LOAD) */ | |
| 4019 | |
| 4020 /* | |
| 4021 * An opportunity for compression mode dependent tag fixup | |
| 4022 */ | |
| 4023 (*tif->tif_fixuptags)(tif); | |
| 4024 | |
| 4025 /* | |
| 4026 * Some manufacturers make life difficult by writing | |
| 4027 * large amounts of uncompressed data as a single strip. | |
| 4028 * This is contrary to the recommendations of the spec. | |
| 4029 * The following makes an attempt at breaking such images | |
| 4030 * into strips closer to the recommended 8k bytes. A | |
| 4031 * side effect, however, is that the RowsPerStrip tag | |
| 4032 * value may be changed. | |
| 4033 */ | |
| 4034 if ((tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG)&& | |
| 4035 (tif->tif_dir.td_nstrips==1)&& | |
| 4036 (tif->tif_dir.td_compression==COMPRESSION_NONE)&& | |
| 4037 ((tif->tif_flags&(TIFF_STRIPCHOP|TIFF_ISTILED))==TIFF_STRIPCHOP)) | |
| 4038 { | |
| 4039 if ( !_TIFFFillStriles(tif) || !tif->tif_dir.td_stripbytecount ) | |
| 4040 return 0; | |
| 4041 ChopUpSingleUncompressedStrip(tif); | |
| 4042 } | |
| 4043 | |
| 4044 /* | |
| 4045 * Clear the dirty directory flag. | |
| 4046 */ | |
| 4047 tif->tif_flags &= ~TIFF_DIRTYDIRECT; | |
| 4048 tif->tif_flags &= ~TIFF_DIRTYSTRIP; | |
| 4049 | |
| 4050 /* | |
| 4051 * Reinitialize i/o since we are starting on a new directory. | |
| 4052 */ | |
| 4053 tif->tif_row = (uint32) -1; | |
| 4054 tif->tif_curstrip = (uint32) -1; | |
| 4055 tif->tif_col = (uint32) -1; | |
| 4056 tif->tif_curtile = (uint32) -1; | |
| 4057 tif->tif_tilesize = (tmsize_t) -1; | |
| 4058 | |
| 4059 tif->tif_scanlinesize = TIFFScanlineSize(tif); | |
| 4060 if (!tif->tif_scanlinesize) { | |
| 4061 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4062 "Cannot handle zero scanline size"); | |
| 4063 return (0); | |
| 4064 } | |
| 4065 | |
| 4066 if (isTiled(tif)) { | |
| 4067 tif->tif_tilesize = TIFFTileSize(tif); | |
| 4068 if (!tif->tif_tilesize) { | |
| 4069 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4070 "Cannot handle zero tile size"); | |
| 4071 return (0); | |
| 4072 } | |
| 4073 } else { | |
| 4074 if (!TIFFStripSize(tif)) { | |
| 4075 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4076 "Cannot handle zero strip size"); | |
| 4077 return (0); | |
| 4078 } | |
| 4079 } | |
| 4080 return (1); | |
| 4081 bad: | |
| 4082 if (dir) | |
| 4083 _TIFFfree(dir); | |
| 4084 return (0); | |
| 4085 } | |
| 4086 | |
| 4087 static void | |
| 4088 TIFFReadDirectoryCheckOrder(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) | |
| 4089 { | |
| 4090 static const char module[] = "TIFFReadDirectoryCheckOrder"; | |
| 4091 uint16 m; | |
| 4092 uint16 n; | |
| 4093 TIFFDirEntry* o; | |
| 4094 m=0; | |
| 4095 for (n=0, o=dir; n<dircount; n++, o++) | |
| 4096 { | |
| 4097 if (o->tdir_tag<m) | |
| 4098 { | |
| 4099 TIFFWarningExt(tif->tif_clientdata,module, | |
| 4100 "Invalid TIFF directory; tags are not sorted in asce
nding order"); | |
| 4101 break; | |
| 4102 } | |
| 4103 m=o->tdir_tag+1; | |
| 4104 } | |
| 4105 } | |
| 4106 | |
| 4107 static TIFFDirEntry* | |
| 4108 TIFFReadDirectoryFindEntry(TIFF* tif, TIFFDirEntry* dir, uint16 dircount, uint16
tagid) | |
| 4109 { | |
| 4110 TIFFDirEntry* m; | |
| 4111 uint16 n; | |
| 4112 (void) tif; | |
| 4113 for (m=dir, n=0; n<dircount; m++, n++) | |
| 4114 { | |
| 4115 if (m->tdir_tag==tagid) | |
| 4116 return(m); | |
| 4117 } | |
| 4118 return(0); | |
| 4119 } | |
| 4120 | |
| 4121 static void | |
| 4122 TIFFReadDirectoryFindFieldInfo(TIFF* tif, uint16 tagid, uint32* fii) | |
| 4123 { | |
| 4124 int32 ma,mb,mc; | |
| 4125 ma=-1; | |
| 4126 mc=(int32)tif->tif_nfields; | |
| 4127 while (1) | |
| 4128 { | |
| 4129 if (ma+1==mc) | |
| 4130 { | |
| 4131 *fii = FAILED_FII; | |
| 4132 return; | |
| 4133 } | |
| 4134 mb=(ma+mc)/2; | |
| 4135 if (tif->tif_fields[mb]->field_tag==(uint32)tagid) | |
| 4136 break; | |
| 4137 if (tif->tif_fields[mb]->field_tag<(uint32)tagid) | |
| 4138 ma=mb; | |
| 4139 else | |
| 4140 mc=mb; | |
| 4141 } | |
| 4142 while (1) | |
| 4143 { | |
| 4144 if (mb==0) | |
| 4145 break; | |
| 4146 if (tif->tif_fields[mb-1]->field_tag!=(uint32)tagid) | |
| 4147 break; | |
| 4148 mb--; | |
| 4149 } | |
| 4150 *fii=mb; | |
| 4151 } | |
| 4152 | |
| 4153 /* | |
| 4154 * Read custom directory from the arbitarry offset. | |
| 4155 * The code is very similar to TIFFReadDirectory(). | |
| 4156 */ | |
| 4157 int | |
| 4158 TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, | |
| 4159 const TIFFFieldArray* infoarray) | |
| 4160 { | |
| 4161 static const char module[] = "TIFFReadCustomDirectory"; | |
| 4162 TIFFDirEntry* dir; | |
| 4163 uint16 dircount; | |
| 4164 TIFFDirEntry* dp; | |
| 4165 uint16 di; | |
| 4166 const TIFFField* fip; | |
| 4167 uint32 fii; | |
| 4168 _TIFFSetupFields(tif, infoarray); | |
| 4169 dircount=TIFFFetchDirectory(tif,diroff,&dir,NULL); | |
| 4170 if (!dircount) | |
| 4171 { | |
| 4172 TIFFErrorExt(tif->tif_clientdata,module, | |
| 4173 "Failed to read custom directory at offset " TIFF_UINT64_FOR
MAT,diroff); | |
| 4174 return 0; | |
| 4175 } | |
| 4176 TIFFFreeDirectory(tif); | |
| 4177 _TIFFmemset(&tif->tif_dir, 0, sizeof(TIFFDirectory)); | |
| 4178 TIFFReadDirectoryCheckOrder(tif,dir,dircount); | |
| 4179 for (di=0, dp=dir; di<dircount; di++, dp++) | |
| 4180 { | |
| 4181 TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii); | |
| 4182 if (fii == FAILED_FII) | |
| 4183 { | |
| 4184 TIFFWarningExt(tif->tif_clientdata, module, | |
| 4185 "Unknown field with tag %d (0x%x) encountered", | |
| 4186 dp->tdir_tag, dp->tdir_tag); | |
| 4187 if (!_TIFFMergeFields(tif, _TIFFCreateAnonField(tif, | |
| 4188 dp->tdir_tag, | |
| 4189 (TIFFDataType) dp->tdir_type), | |
| 4190 1)) { | |
| 4191 TIFFWarningExt(tif->tif_clientdata, module, | |
| 4192 "Registering anonymous field with tag %d (0x
%x) failed", | |
| 4193 dp->tdir_tag, dp->tdir_tag); | |
| 4194 dp->tdir_tag=IGNORE; | |
| 4195 } else { | |
| 4196 TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,
&fii); | |
| 4197 assert( fii != FAILED_FII ); | |
| 4198 } | |
| 4199 } | |
| 4200 if (dp->tdir_tag!=IGNORE) | |
| 4201 { | |
| 4202 fip=tif->tif_fields[fii]; | |
| 4203 if (fip->field_bit==FIELD_IGNORE) | |
| 4204 dp->tdir_tag=IGNORE; | |
| 4205 else | |
| 4206 { | |
| 4207 /* check data type */ | |
| 4208 while ((fip->field_type!=TIFF_ANY)&&(fip->field_
type!=dp->tdir_type)) | |
| 4209 { | |
| 4210 fii++; | |
| 4211 if ((fii==tif->tif_nfields)|| | |
| 4212 (tif->tif_fields[fii]->field_tag!=(u
int32)dp->tdir_tag)) | |
| 4213 { | |
| 4214 fii=0xFFFF; | |
| 4215 break; | |
| 4216 } | |
| 4217 fip=tif->tif_fields[fii]; | |
| 4218 } | |
| 4219 if (fii==0xFFFF) | |
| 4220 { | |
| 4221 TIFFWarningExt(tif->tif_clientdata, modu
le, | |
| 4222 "Wrong data type %d for \"%s\"; tag
ignored", | |
| 4223 dp->tdir_type,fip->field_name); | |
| 4224 dp->tdir_tag=IGNORE; | |
| 4225 } | |
| 4226 else | |
| 4227 { | |
| 4228 /* check count if known in advance */ | |
| 4229 if ((fip->field_readcount!=TIFF_VARIABLE
)&& | |
| 4230 (fip->field_readcount!=TIFF_VARIABLE
2)) | |
| 4231 { | |
| 4232 uint32 expected; | |
| 4233 if (fip->field_readcount==TIFF_S
PP) | |
| 4234 expected=(uint32)tif->ti
f_dir.td_samplesperpixel; | |
| 4235 else | |
| 4236 expected=(uint32)fip->fi
eld_readcount; | |
| 4237 if (!CheckDirCount(tif,dp,expect
ed)) | |
| 4238 dp->tdir_tag=IGNORE; | |
| 4239 } | |
| 4240 } | |
| 4241 } | |
| 4242 switch (dp->tdir_tag) | |
| 4243 { | |
| 4244 case IGNORE: | |
| 4245 break; | |
| 4246 case EXIFTAG_SUBJECTDISTANCE: | |
| 4247 (void) TIFFFetchSubjectDistance(tif,dp); | |
| 4248 break; | |
| 4249 default: | |
| 4250 (void) TIFFFetchNormalTag(tif, dp, TRUE)
; | |
| 4251 break; | |
| 4252 } | |
| 4253 } | |
| 4254 } | |
| 4255 if (dir) | |
| 4256 _TIFFfree(dir); | |
| 4257 return 1; | |
| 4258 } | |
| 4259 | |
| 4260 /* | |
| 4261 * EXIF is important special case of custom IFD, so we have a special | |
| 4262 * function to read it. | |
| 4263 */ | |
| 4264 int | |
| 4265 TIFFReadEXIFDirectory(TIFF* tif, toff_t diroff) | |
| 4266 { | |
| 4267 const TIFFFieldArray* exifFieldArray; | |
| 4268 exifFieldArray = _TIFFGetExifFields(); | |
| 4269 return TIFFReadCustomDirectory(tif, diroff, exifFieldArray); | |
| 4270 } | |
| 4271 | |
| 4272 static int | |
| 4273 EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) | |
| 4274 { | |
| 4275 static const char module[] = "EstimateStripByteCounts"; | |
| 4276 | |
| 4277 TIFFDirEntry *dp; | |
| 4278 TIFFDirectory *td = &tif->tif_dir; | |
| 4279 uint32 strip; | |
| 4280 | |
| 4281 _TIFFFillStriles( tif ); | |
| 4282 | |
| 4283 if (td->td_stripbytecount) | |
| 4284 _TIFFfree(td->td_stripbytecount); | |
| 4285 td->td_stripbytecount = (uint64*) | |
| 4286 _TIFFCheckMalloc(tif, td->td_nstrips, sizeof (uint64), | |
| 4287 "for \"StripByteCounts\" array"); | |
| 4288 if( td->td_stripbytecount == NULL ) | |
| 4289 return -1; | |
| 4290 | |
| 4291 if (td->td_compression != COMPRESSION_NONE) { | |
| 4292 uint64 space; | |
| 4293 uint64 filesize; | |
| 4294 uint16 n; | |
| 4295 filesize = TIFFGetFileSize(tif); | |
| 4296 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 4297 space=sizeof(TIFFHeaderClassic)+2+dircount*12+4; | |
| 4298 else | |
| 4299 space=sizeof(TIFFHeaderBig)+8+dircount*20+8; | |
| 4300 /* calculate amount of space used by indirect values */ | |
| 4301 for (dp = dir, n = dircount; n > 0; n--, dp++) | |
| 4302 { | |
| 4303 uint32 typewidth = TIFFDataWidth((TIFFDataType) dp->tdir
_type); | |
| 4304 uint64 datasize; | |
| 4305 typewidth = TIFFDataWidth((TIFFDataType) dp->tdir_type); | |
| 4306 if (typewidth == 0) { | |
| 4307 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4308 "Cannot determine size of unknown tag type %
d", | |
| 4309 dp->tdir_type); | |
| 4310 return -1; | |
| 4311 } | |
| 4312 datasize=(uint64)typewidth*dp->tdir_count; | |
| 4313 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 4314 { | |
| 4315 if (datasize<=4) | |
| 4316 datasize=0; | |
| 4317 } | |
| 4318 else | |
| 4319 { | |
| 4320 if (datasize<=8) | |
| 4321 datasize=0; | |
| 4322 } | |
| 4323 space+=datasize; | |
| 4324 } | |
| 4325 space = filesize - space; | |
| 4326 if (td->td_planarconfig == PLANARCONFIG_SEPARATE) | |
| 4327 space /= td->td_samplesperpixel; | |
| 4328 for (strip = 0; strip < td->td_nstrips; strip++) | |
| 4329 td->td_stripbytecount[strip] = space; | |
| 4330 /* | |
| 4331 * This gross hack handles the case were the offset to | |
| 4332 * the last strip is past the place where we think the strip | |
| 4333 * should begin. Since a strip of data must be contiguous, | |
| 4334 * it's safe to assume that we've overestimated the amount | |
| 4335 * of data in the strip and trim this number back accordingly. | |
| 4336 */ | |
| 4337 strip--; | |
| 4338 if (td->td_stripoffset[strip]+td->td_stripbytecount[strip] > fil
esize) | |
| 4339 td->td_stripbytecount[strip] = filesize - td->td_stripof
fset[strip]; | |
| 4340 } else if (isTiled(tif)) { | |
| 4341 uint64 bytespertile = TIFFTileSize64(tif); | |
| 4342 | |
| 4343 for (strip = 0; strip < td->td_nstrips; strip++) | |
| 4344 td->td_stripbytecount[strip] = bytespertile; | |
| 4345 } else { | |
| 4346 uint64 rowbytes = TIFFScanlineSize64(tif); | |
| 4347 uint32 rowsperstrip = td->td_imagelength/td->td_stripsperimage; | |
| 4348 for (strip = 0; strip < td->td_nstrips; strip++) | |
| 4349 td->td_stripbytecount[strip] = rowbytes * rowsperstrip; | |
| 4350 } | |
| 4351 TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); | |
| 4352 if (!TIFFFieldSet(tif, FIELD_ROWSPERSTRIP)) | |
| 4353 td->td_rowsperstrip = td->td_imagelength; | |
| 4354 return 1; | |
| 4355 } | |
| 4356 | |
| 4357 static void | |
| 4358 MissingRequired(TIFF* tif, const char* tagname) | |
| 4359 { | |
| 4360 static const char module[] = "MissingRequired"; | |
| 4361 | |
| 4362 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4363 "TIFF directory is missing required \"%s\" field", | |
| 4364 tagname); | |
| 4365 } | |
| 4366 | |
| 4367 /* | |
| 4368 * Check the directory offset against the list of already seen directory | |
| 4369 * offsets. This is a trick to prevent IFD looping. The one can create TIFF | |
| 4370 * file with looped directory pointers. We will maintain a list of already | |
| 4371 * seen directories and check every IFD offset against that list. | |
| 4372 */ | |
| 4373 static int | |
| 4374 TIFFCheckDirOffset(TIFF* tif, uint64 diroff) | |
| 4375 { | |
| 4376 uint16 n; | |
| 4377 | |
| 4378 if (diroff == 0) /* no more directories */ | |
| 4379 return 0; | |
| 4380 | |
| 4381 for (n = 0; n < tif->tif_dirnumber && tif->tif_dirlist; n++) { | |
| 4382 if (tif->tif_dirlist[n] == diroff) | |
| 4383 return 0; | |
| 4384 } | |
| 4385 | |
| 4386 tif->tif_dirnumber++; | |
| 4387 | |
| 4388 if (tif->tif_dirnumber > tif->tif_dirlistsize) { | |
| 4389 uint64* new_dirlist; | |
| 4390 | |
| 4391 /* | |
| 4392 * XXX: Reduce memory allocation granularity of the dirlist | |
| 4393 * array. | |
| 4394 */ | |
| 4395 new_dirlist = (uint64*)_TIFFCheckRealloc(tif, tif->tif_dirlist, | |
| 4396 tif->tif_dirnumber, 2 * sizeof(uint64), "for IFD list"); | |
| 4397 if (!new_dirlist) | |
| 4398 return 0; | |
| 4399 tif->tif_dirlistsize = 2 * tif->tif_dirnumber; | |
| 4400 tif->tif_dirlist = new_dirlist; | |
| 4401 } | |
| 4402 | |
| 4403 tif->tif_dirlist[tif->tif_dirnumber - 1] = diroff; | |
| 4404 | |
| 4405 return 1; | |
| 4406 } | |
| 4407 | |
| 4408 /* | |
| 4409 * Check the count field of a directory entry against a known value. The | |
| 4410 * caller is expected to skip/ignore the tag if there is a mismatch. | |
| 4411 */ | |
| 4412 static int | |
| 4413 CheckDirCount(TIFF* tif, TIFFDirEntry* dir, uint32 count) | |
| 4414 { | |
| 4415 if ((uint64)count > dir->tdir_count) { | |
| 4416 const TIFFField* fip = TIFFFieldWithTag(tif, dir->tdir_tag); | |
| 4417 TIFFWarningExt(tif->tif_clientdata, tif->tif_name, | |
| 4418 "incorrect count for field \"%s\" (" TIFF_UINT64_FORMAT ", expecting %u)
; tag ignored", | |
| 4419 fip ? fip->field_name : "unknown tagname", | |
| 4420 dir->tdir_count, count); | |
| 4421 return (0); | |
| 4422 } else if ((uint64)count < dir->tdir_count) { | |
| 4423 const TIFFField* fip = TIFFFieldWithTag(tif, dir->tdir_tag); | |
| 4424 TIFFWarningExt(tif->tif_clientdata, tif->tif_name, | |
| 4425 "incorrect count for field \"%s\" (" TIFF_UINT64_FORMAT ", expecting %u)
; tag trimmed", | |
| 4426 fip ? fip->field_name : "unknown tagname", | |
| 4427 dir->tdir_count, count); | |
| 4428 dir->tdir_count = count; | |
| 4429 return (1); | |
| 4430 } | |
| 4431 return (1); | |
| 4432 } | |
| 4433 | |
| 4434 /* | |
| 4435 * Read IFD structure from the specified offset. If the pointer to | |
| 4436 * nextdiroff variable has been specified, read it too. Function returns a | |
| 4437 * number of fields in the directory or 0 if failed. | |
| 4438 */ | |
| 4439 static uint16 | |
| 4440 TIFFFetchDirectory(TIFF* tif, uint64 diroff, TIFFDirEntry** pdir, | |
| 4441 uint64 *nextdiroff) | |
| 4442 { | |
| 4443 static const char module[] = "TIFFFetchDirectory"; | |
| 4444 | |
| 4445 void* origdir; | |
| 4446 uint16 dircount16; | |
| 4447 uint32 dirsize; | |
| 4448 TIFFDirEntry* dir; | |
| 4449 uint8* ma; | |
| 4450 TIFFDirEntry* mb; | |
| 4451 uint16 n; | |
| 4452 | |
| 4453 assert(pdir); | |
| 4454 | |
| 4455 tif->tif_diroff = diroff; | |
| 4456 if (nextdiroff) | |
| 4457 *nextdiroff = 0; | |
| 4458 if (!isMapped(tif)) { | |
| 4459 if (!SeekOK(tif, tif->tif_diroff)) { | |
| 4460 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4461 "%s: Seek error accessing TIFF directory", | |
| 4462 tif->tif_name); | |
| 4463 return 0; | |
| 4464 } | |
| 4465 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 4466 { | |
| 4467 if (!ReadOK(tif, &dircount16, sizeof (uint16))) { | |
| 4468 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4469 "%s: Can not read TIFF directory count", | |
| 4470 tif->tif_name); | |
| 4471 return 0; | |
| 4472 } | |
| 4473 if (tif->tif_flags & TIFF_SWAB) | |
| 4474 TIFFSwabShort(&dircount16); | |
| 4475 if (dircount16>4096) | |
| 4476 { | |
| 4477 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4478 "Sanity check on directory count failed, thi
s is probably not a valid IFD offset"); | |
| 4479 return 0; | |
| 4480 } | |
| 4481 dirsize = 12; | |
| 4482 } else { | |
| 4483 uint64 dircount64; | |
| 4484 if (!ReadOK(tif, &dircount64, sizeof (uint64))) { | |
| 4485 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4486 "%s: Can not read TIFF directory count", | |
| 4487 tif->tif_name); | |
| 4488 return 0; | |
| 4489 } | |
| 4490 if (tif->tif_flags & TIFF_SWAB) | |
| 4491 TIFFSwabLong8(&dircount64); | |
| 4492 if (dircount64>4096) | |
| 4493 { | |
| 4494 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4495 "Sanity check on directory count failed, thi
s is probably not a valid IFD offset"); | |
| 4496 return 0; | |
| 4497 } | |
| 4498 dircount16 = (uint16)dircount64; | |
| 4499 dirsize = 20; | |
| 4500 } | |
| 4501 origdir = _TIFFCheckMalloc(tif, dircount16, | |
| 4502 dirsize, "to read TIFF directory"); | |
| 4503 if (origdir == NULL) | |
| 4504 return 0; | |
| 4505 if (!ReadOK(tif, origdir, (tmsize_t)(dircount16*dirsize))) { | |
| 4506 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4507 "%.100s: Can not read TIFF directory", | |
| 4508 tif->tif_name); | |
| 4509 _TIFFfree(origdir); | |
| 4510 return 0; | |
| 4511 } | |
| 4512 /* | |
| 4513 * Read offset to next directory for sequential scans if | |
| 4514 * needed. | |
| 4515 */ | |
| 4516 if (nextdiroff) | |
| 4517 { | |
| 4518 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 4519 { | |
| 4520 uint32 nextdiroff32; | |
| 4521 if (!ReadOK(tif, &nextdiroff32, sizeof(uint32))) | |
| 4522 nextdiroff32 = 0; | |
| 4523 if (tif->tif_flags&TIFF_SWAB) | |
| 4524 TIFFSwabLong(&nextdiroff32); | |
| 4525 *nextdiroff=nextdiroff32; | |
| 4526 } else { | |
| 4527 if (!ReadOK(tif, nextdiroff, sizeof(uint64))) | |
| 4528 *nextdiroff = 0; | |
| 4529 if (tif->tif_flags&TIFF_SWAB) | |
| 4530 TIFFSwabLong8(nextdiroff); | |
| 4531 } | |
| 4532 } | |
| 4533 } else { | |
| 4534 tmsize_t m; | |
| 4535 tmsize_t off = (tmsize_t) tif->tif_diroff; | |
| 4536 if ((uint64)off!=tif->tif_diroff) | |
| 4537 { | |
| 4538 TIFFErrorExt(tif->tif_clientdata,module,"Can not read TI
FF directory count"); | |
| 4539 return(0); | |
| 4540 } | |
| 4541 | |
| 4542 /* | |
| 4543 * Check for integer overflow when validating the dir_off, | |
| 4544 * otherwise a very high offset may cause an OOB read and | |
| 4545 * crash the client. Make two comparisons instead of | |
| 4546 * | |
| 4547 * off + sizeof(uint16) > tif->tif_size | |
| 4548 * | |
| 4549 * to avoid overflow. | |
| 4550 */ | |
| 4551 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 4552 { | |
| 4553 m=off+sizeof(uint16); | |
| 4554 if ((m<off)||(m<(tmsize_t)sizeof(uint16))||(m>tif->tif_s
ize)) { | |
| 4555 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4556 "Can not read TIFF directory count"); | |
| 4557 return 0; | |
| 4558 } else { | |
| 4559 _TIFFmemcpy(&dircount16, tif->tif_base + off, | |
| 4560 sizeof(uint16)); | |
| 4561 } | |
| 4562 off += sizeof (uint16); | |
| 4563 if (tif->tif_flags & TIFF_SWAB) | |
| 4564 TIFFSwabShort(&dircount16); | |
| 4565 if (dircount16>4096) | |
| 4566 { | |
| 4567 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4568 "Sanity check on directory count failed, thi
s is probably not a valid IFD offset"); | |
| 4569 return 0; | |
| 4570 } | |
| 4571 dirsize = 12; | |
| 4572 } | |
| 4573 else | |
| 4574 { | |
| 4575 tmsize_t m; | |
| 4576 uint64 dircount64; | |
| 4577 m=off+sizeof(uint64); | |
| 4578 if ((m<off)||(m<(tmsize_t)sizeof(uint64))||(m>tif->tif_s
ize)) { | |
| 4579 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4580 "Can not read TIFF directory count"); | |
| 4581 return 0; | |
| 4582 } else { | |
| 4583 _TIFFmemcpy(&dircount64, tif->tif_base + off, | |
| 4584 sizeof(uint64)); | |
| 4585 } | |
| 4586 off += sizeof (uint64); | |
| 4587 if (tif->tif_flags & TIFF_SWAB) | |
| 4588 TIFFSwabLong8(&dircount64); | |
| 4589 if (dircount64>4096) | |
| 4590 { | |
| 4591 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4592 "Sanity check on directory count failed, thi
s is probably not a valid IFD offset"); | |
| 4593 return 0; | |
| 4594 } | |
| 4595 dircount16 = (uint16)dircount64; | |
| 4596 dirsize = 20; | |
| 4597 } | |
| 4598 if (dircount16 == 0 ) | |
| 4599 { | |
| 4600 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4601 "Sanity check on directory count failed, ze
ro tag directories not supported"); | |
| 4602 return 0; | |
| 4603 } | |
| 4604 origdir = _TIFFCheckMalloc(tif, dircount16, | |
| 4605 dirsize, | |
| 4606 "to read TIFF directory"); | |
| 4607 if (origdir == NULL) | |
| 4608 return 0; | |
| 4609 m=off+dircount16*dirsize; | |
| 4610 if ((m<off)||(m<(tmsize_t)(dircount16*dirsize))||(m>tif->tif_siz
e)) { | |
| 4611 TIFFErrorExt(tif->tif_clientdata, module, | |
| 4612 "Can not read TIFF directory"); | |
| 4613 _TIFFfree(origdir); | |
| 4614 return 0; | |
| 4615 } else { | |
| 4616 _TIFFmemcpy(origdir, tif->tif_base + off, | |
| 4617 dircount16 * dirsize); | |
| 4618 } | |
| 4619 if (nextdiroff) { | |
| 4620 off += dircount16 * dirsize; | |
| 4621 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 4622 { | |
| 4623 uint32 nextdiroff32; | |
| 4624 m=off+sizeof(uint32); | |
| 4625 if ((m<off)||(m<(tmsize_t)sizeof(uint32))||(m>ti
f->tif_size)) | |
| 4626 nextdiroff32 = 0; | |
| 4627 else | |
| 4628 _TIFFmemcpy(&nextdiroff32, tif->tif_base
+ off, | |
| 4629 sizeof (uint32)); | |
| 4630 if (tif->tif_flags&TIFF_SWAB) | |
| 4631 TIFFSwabLong(&nextdiroff32); | |
| 4632 *nextdiroff = nextdiroff32; | |
| 4633 } | |
| 4634 else | |
| 4635 { | |
| 4636 m=off+sizeof(uint64); | |
| 4637 if ((m<off)||(m<(tmsize_t)sizeof(uint64))||(m>ti
f->tif_size)) | |
| 4638 *nextdiroff = 0; | |
| 4639 else | |
| 4640 _TIFFmemcpy(nextdiroff, tif->tif_base +
off, | |
| 4641 sizeof (uint64)); | |
| 4642 if (tif->tif_flags&TIFF_SWAB) | |
| 4643 TIFFSwabLong8(nextdiroff); | |
| 4644 } | |
| 4645 } | |
| 4646 } | |
| 4647 dir = (TIFFDirEntry*)_TIFFCheckMalloc(tif, dircount16, | |
| 4648 sizeof(TIFFDirEntry), | |
| 4649 "to read TIFF directory"); | |
| 4650 if (dir==0) | |
| 4651 { | |
| 4652 _TIFFfree(origdir); | |
| 4653 return 0; | |
| 4654 } | |
| 4655 ma=(uint8*)origdir; | |
| 4656 mb=dir; | |
| 4657 for (n=0; n<dircount16; n++) | |
| 4658 { | |
| 4659 if (tif->tif_flags&TIFF_SWAB) | |
| 4660 TIFFSwabShort((uint16*)ma); | |
| 4661 mb->tdir_tag=*(uint16*)ma; | |
| 4662 ma+=sizeof(uint16); | |
| 4663 if (tif->tif_flags&TIFF_SWAB) | |
| 4664 TIFFSwabShort((uint16*)ma); | |
| 4665 mb->tdir_type=*(uint16*)ma; | |
| 4666 ma+=sizeof(uint16); | |
| 4667 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 4668 { | |
| 4669 if (tif->tif_flags&TIFF_SWAB) | |
| 4670 TIFFSwabLong((uint32*)ma); | |
| 4671 mb->tdir_count=(uint64)(*(uint32*)ma); | |
| 4672 ma+=sizeof(uint32); | |
| 4673 *(uint32*)(&mb->tdir_offset)=*(uint32*)ma; | |
| 4674 ma+=sizeof(uint32); | |
| 4675 } | |
| 4676 else | |
| 4677 { | |
| 4678 if (tif->tif_flags&TIFF_SWAB) | |
| 4679 TIFFSwabLong8((uint64*)ma); | |
| 4680 mb->tdir_count=TIFFReadUInt64(ma); | |
| 4681 ma+=sizeof(uint64); | |
| 4682 mb->tdir_offset.toff_long8=TIFFReadUInt64(ma); | |
| 4683 ma+=sizeof(uint64); | |
| 4684 } | |
| 4685 mb++; | |
| 4686 } | |
| 4687 _TIFFfree(origdir); | |
| 4688 *pdir = dir; | |
| 4689 return dircount16; | |
| 4690 } | |
| 4691 | |
| 4692 /* | |
| 4693 * Fetch a tag that is not handled by special case code. | |
| 4694 */ | |
| 4695 static int | |
| 4696 TIFFFetchNormalTag(TIFF* tif, TIFFDirEntry* dp, int recover) | |
| 4697 { | |
| 4698 static const char module[] = "TIFFFetchNormalTag"; | |
| 4699 enum TIFFReadDirEntryErr err; | |
| 4700 uint32 fii; | |
| 4701 const TIFFField* fip = NULL; | |
| 4702 TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii); | |
| 4703 if( fii == FAILED_FII ) | |
| 4704 { | |
| 4705 TIFFErrorExt(tif->tif_clientdata, "TIFFFetchNormalTag", | |
| 4706 "No definition found for tag %d", | |
| 4707 dp->tdir_tag); | |
| 4708 return 0; | |
| 4709 } | |
| 4710 fip=tif->tif_fields[fii]; | |
| 4711 assert(fip->set_field_type!=TIFF_SETGET_OTHER); /* if so, we shouldn't
arrive here but deal with this in specialized code */ | |
| 4712 assert(fip->set_field_type!=TIFF_SETGET_INT); /* if so, we shouldn't
arrive here as this is only the case for pseudo-tags */ | |
| 4713 err=TIFFReadDirEntryErrOk; | |
| 4714 switch (fip->set_field_type) | |
| 4715 { | |
| 4716 case TIFF_SETGET_UNDEFINED: | |
| 4717 break; | |
| 4718 case TIFF_SETGET_ASCII: | |
| 4719 { | |
| 4720 uint8* data; | |
| 4721 assert(fip->field_passcount==0); | |
| 4722 err=TIFFReadDirEntryByteArray(tif,dp,&data); | |
| 4723 if (err==TIFFReadDirEntryErrOk) | |
| 4724 { | |
| 4725 uint8* ma; | |
| 4726 uint32 mb; | |
| 4727 int n; | |
| 4728 ma=data; | |
| 4729 mb=0; | |
| 4730 while (mb<(uint32)dp->tdir_count) | |
| 4731 { | |
| 4732 if (*ma==0) | |
| 4733 break; | |
| 4734 ma++; | |
| 4735 mb++; | |
| 4736 } | |
| 4737 if (mb+1<(uint32)dp->tdir_count) | |
| 4738 TIFFWarningExt(tif->tif_clientda
ta,module,"ASCII value for tag \"%s\" contains null byte in value; value incorre
ctly truncated during reading due to implementation limitations",fip->field_name
); | |
| 4739 else if (mb+1>(uint32)dp->tdir_count) | |
| 4740 { | |
| 4741 uint8* o; | |
| 4742 TIFFWarningExt(tif->tif_clientda
ta,module,"ASCII value for tag \"%s\" does not end in null byte",fip->field_name
); | |
| 4743 if ((uint32)dp->tdir_count+1!=dp
->tdir_count+1) | |
| 4744 o=NULL; | |
| 4745 else | |
| 4746 o=_TIFFmalloc((uint32)dp
->tdir_count+1); | |
| 4747 if (o==NULL) | |
| 4748 { | |
| 4749 if (data!=NULL) | |
| 4750 _TIFFfree(data); | |
| 4751 return(0); | |
| 4752 } | |
| 4753 _TIFFmemcpy(o,data,(uint32)dp->t
dir_count); | |
| 4754 o[(uint32)dp->tdir_count]=0; | |
| 4755 if (data!=0) | |
| 4756 _TIFFfree(data); | |
| 4757 data=o; | |
| 4758 } | |
| 4759 n=TIFFSetField(tif,dp->tdir_tag,data); | |
| 4760 if (data!=0) | |
| 4761 _TIFFfree(data); | |
| 4762 if (!n) | |
| 4763 return(0); | |
| 4764 } | |
| 4765 } | |
| 4766 break; | |
| 4767 case TIFF_SETGET_UINT8: | |
| 4768 { | |
| 4769 uint8 data=0; | |
| 4770 assert(fip->field_readcount==1); | |
| 4771 assert(fip->field_passcount==0); | |
| 4772 err=TIFFReadDirEntryByte(tif,dp,&data); | |
| 4773 if (err==TIFFReadDirEntryErrOk) | |
| 4774 { | |
| 4775 if (!TIFFSetField(tif,dp->tdir_tag,data)
) | |
| 4776 return(0); | |
| 4777 } | |
| 4778 } | |
| 4779 break; | |
| 4780 case TIFF_SETGET_UINT16: | |
| 4781 { | |
| 4782 uint16 data; | |
| 4783 assert(fip->field_readcount==1); | |
| 4784 assert(fip->field_passcount==0); | |
| 4785 err=TIFFReadDirEntryShort(tif,dp,&data); | |
| 4786 if (err==TIFFReadDirEntryErrOk) | |
| 4787 { | |
| 4788 if (!TIFFSetField(tif,dp->tdir_tag,data)
) | |
| 4789 return(0); | |
| 4790 } | |
| 4791 } | |
| 4792 break; | |
| 4793 case TIFF_SETGET_UINT32: | |
| 4794 { | |
| 4795 uint32 data; | |
| 4796 assert(fip->field_readcount==1); | |
| 4797 assert(fip->field_passcount==0); | |
| 4798 err=TIFFReadDirEntryLong(tif,dp,&data); | |
| 4799 if (err==TIFFReadDirEntryErrOk) | |
| 4800 { | |
| 4801 if (!TIFFSetField(tif,dp->tdir_tag,data)
) | |
| 4802 return(0); | |
| 4803 } | |
| 4804 } | |
| 4805 break; | |
| 4806 case TIFF_SETGET_UINT64: | |
| 4807 { | |
| 4808 uint64 data; | |
| 4809 assert(fip->field_readcount==1); | |
| 4810 assert(fip->field_passcount==0); | |
| 4811 err=TIFFReadDirEntryLong8(tif,dp,&data); | |
| 4812 if (err==TIFFReadDirEntryErrOk) | |
| 4813 { | |
| 4814 if (!TIFFSetField(tif,dp->tdir_tag,data)
) | |
| 4815 return(0); | |
| 4816 } | |
| 4817 } | |
| 4818 break; | |
| 4819 case TIFF_SETGET_FLOAT: | |
| 4820 { | |
| 4821 float data; | |
| 4822 assert(fip->field_readcount==1); | |
| 4823 assert(fip->field_passcount==0); | |
| 4824 err=TIFFReadDirEntryFloat(tif,dp,&data); | |
| 4825 if (err==TIFFReadDirEntryErrOk) | |
| 4826 { | |
| 4827 if (!TIFFSetField(tif,dp->tdir_tag,data)
) | |
| 4828 return(0); | |
| 4829 } | |
| 4830 } | |
| 4831 break; | |
| 4832 case TIFF_SETGET_DOUBLE: | |
| 4833 { | |
| 4834 double data; | |
| 4835 assert(fip->field_readcount==1); | |
| 4836 assert(fip->field_passcount==0); | |
| 4837 err=TIFFReadDirEntryDouble(tif,dp,&data); | |
| 4838 if (err==TIFFReadDirEntryErrOk) | |
| 4839 { | |
| 4840 if (!TIFFSetField(tif,dp->tdir_tag,data)
) | |
| 4841 return(0); | |
| 4842 } | |
| 4843 } | |
| 4844 break; | |
| 4845 case TIFF_SETGET_IFD8: | |
| 4846 { | |
| 4847 uint64 data; | |
| 4848 assert(fip->field_readcount==1); | |
| 4849 assert(fip->field_passcount==0); | |
| 4850 err=TIFFReadDirEntryIfd8(tif,dp,&data); | |
| 4851 if (err==TIFFReadDirEntryErrOk) | |
| 4852 { | |
| 4853 if (!TIFFSetField(tif,dp->tdir_tag,data)
) | |
| 4854 return(0); | |
| 4855 } | |
| 4856 } | |
| 4857 break; | |
| 4858 case TIFF_SETGET_UINT16_PAIR: | |
| 4859 { | |
| 4860 uint16* data; | |
| 4861 assert(fip->field_readcount==2); | |
| 4862 assert(fip->field_passcount==0); | |
| 4863 if (dp->tdir_count!=2) { | |
| 4864 TIFFWarningExt(tif->tif_clientdata,modul
e, | |
| 4865 "incorrect count for fiel
d \"%s\", expected 2, got %d", | |
| 4866 fip->field_name,(int)dp->
tdir_count); | |
| 4867 return(0); | |
| 4868 } | |
| 4869 err=TIFFReadDirEntryShortArray(tif,dp,&data); | |
| 4870 if (err==TIFFReadDirEntryErrOk) | |
| 4871 { | |
| 4872 int m; | |
| 4873 m=TIFFSetField(tif,dp->tdir_tag,data[0],
data[1]); | |
| 4874 _TIFFfree(data); | |
| 4875 if (!m) | |
| 4876 return(0); | |
| 4877 } | |
| 4878 } | |
| 4879 break; | |
| 4880 case TIFF_SETGET_C0_UINT8: | |
| 4881 { | |
| 4882 uint8* data; | |
| 4883 assert(fip->field_readcount>=1); | |
| 4884 assert(fip->field_passcount==0); | |
| 4885 if (dp->tdir_count!=(uint64)fip->field_readcount
) { | |
| 4886 TIFFWarningExt(tif->tif_clientdata,modul
e, | |
| 4887 "incorrect count for fiel
d \"%s\", expected %d, got %d", | |
| 4888 fip->field_name,(int) fip
->field_readcount, (int)dp->tdir_count); | |
| 4889 return 0; | |
| 4890 } | |
| 4891 else | |
| 4892 { | |
| 4893 err=TIFFReadDirEntryByteArray(tif,dp,&da
ta); | |
| 4894 if (err==TIFFReadDirEntryErrOk) | |
| 4895 { | |
| 4896 int m; | |
| 4897 m=TIFFSetField(tif,dp->tdir_tag,
data); | |
| 4898 if (data!=0) | |
| 4899 _TIFFfree(data); | |
| 4900 if (!m) | |
| 4901 return(0); | |
| 4902 } | |
| 4903 } | |
| 4904 } | |
| 4905 break; | |
| 4906 case TIFF_SETGET_C0_UINT16: | |
| 4907 { | |
| 4908 uint16* data; | |
| 4909 assert(fip->field_readcount>=1); | |
| 4910 assert(fip->field_passcount==0); | |
| 4911 if (dp->tdir_count!=(uint64)fip->field_readcount
) | |
| 4912 /* corrupt file */; | |
| 4913 else | |
| 4914 { | |
| 4915 err=TIFFReadDirEntryShortArray(tif,dp,&d
ata); | |
| 4916 if (err==TIFFReadDirEntryErrOk) | |
| 4917 { | |
| 4918 int m; | |
| 4919 m=TIFFSetField(tif,dp->tdir_tag,
data); | |
| 4920 if (data!=0) | |
| 4921 _TIFFfree(data); | |
| 4922 if (!m) | |
| 4923 return(0); | |
| 4924 } | |
| 4925 } | |
| 4926 } | |
| 4927 break; | |
| 4928 case TIFF_SETGET_C0_UINT32: | |
| 4929 { | |
| 4930 uint32* data; | |
| 4931 assert(fip->field_readcount>=1); | |
| 4932 assert(fip->field_passcount==0); | |
| 4933 if (dp->tdir_count!=(uint64)fip->field_readcount
) | |
| 4934 /* corrupt file */; | |
| 4935 else | |
| 4936 { | |
| 4937 err=TIFFReadDirEntryLongArray(tif,dp,&da
ta); | |
| 4938 if (err==TIFFReadDirEntryErrOk) | |
| 4939 { | |
| 4940 int m; | |
| 4941 m=TIFFSetField(tif,dp->tdir_tag,
data); | |
| 4942 if (data!=0) | |
| 4943 _TIFFfree(data); | |
| 4944 if (!m) | |
| 4945 return(0); | |
| 4946 } | |
| 4947 } | |
| 4948 } | |
| 4949 break; | |
| 4950 case TIFF_SETGET_C0_FLOAT: | |
| 4951 { | |
| 4952 float* data; | |
| 4953 assert(fip->field_readcount>=1); | |
| 4954 assert(fip->field_passcount==0); | |
| 4955 if (dp->tdir_count!=(uint64)fip->field_readcount
) | |
| 4956 /* corrupt file */; | |
| 4957 else | |
| 4958 { | |
| 4959 err=TIFFReadDirEntryFloatArray(tif,dp,&d
ata); | |
| 4960 if (err==TIFFReadDirEntryErrOk) | |
| 4961 { | |
| 4962 int m; | |
| 4963 m=TIFFSetField(tif,dp->tdir_tag,
data); | |
| 4964 if (data!=0) | |
| 4965 _TIFFfree(data); | |
| 4966 if (!m) | |
| 4967 return(0); | |
| 4968 } | |
| 4969 } | |
| 4970 } | |
| 4971 break; | |
| 4972 case TIFF_SETGET_C16_ASCII: | |
| 4973 { | |
| 4974 uint8* data; | |
| 4975 assert(fip->field_readcount==TIFF_VARIABLE); | |
| 4976 assert(fip->field_passcount==1); | |
| 4977 if (dp->tdir_count>0xFFFF) | |
| 4978 err=TIFFReadDirEntryErrCount; | |
| 4979 else | |
| 4980 { | |
| 4981 err=TIFFReadDirEntryByteArray(tif,dp,&da
ta); | |
| 4982 if (err==TIFFReadDirEntryErrOk) | |
| 4983 { | |
| 4984 int m; | |
| 4985 m=TIFFSetField(tif,dp->tdir_tag,
(uint16)(dp->tdir_count),data); | |
| 4986 if (data!=0) | |
| 4987 _TIFFfree(data); | |
| 4988 if (!m) | |
| 4989 return(0); | |
| 4990 } | |
| 4991 } | |
| 4992 } | |
| 4993 break; | |
| 4994 case TIFF_SETGET_C16_UINT8: | |
| 4995 { | |
| 4996 uint8* data; | |
| 4997 assert(fip->field_readcount==TIFF_VARIABLE); | |
| 4998 assert(fip->field_passcount==1); | |
| 4999 if (dp->tdir_count>0xFFFF) | |
| 5000 err=TIFFReadDirEntryErrCount; | |
| 5001 else | |
| 5002 { | |
| 5003 err=TIFFReadDirEntryByteArray(tif,dp,&da
ta); | |
| 5004 if (err==TIFFReadDirEntryErrOk) | |
| 5005 { | |
| 5006 int m; | |
| 5007 m=TIFFSetField(tif,dp->tdir_tag,
(uint16)(dp->tdir_count),data); | |
| 5008 if (data!=0) | |
| 5009 _TIFFfree(data); | |
| 5010 if (!m) | |
| 5011 return(0); | |
| 5012 } | |
| 5013 } | |
| 5014 } | |
| 5015 break; | |
| 5016 case TIFF_SETGET_C16_UINT16: | |
| 5017 { | |
| 5018 uint16* data; | |
| 5019 assert(fip->field_readcount==TIFF_VARIABLE); | |
| 5020 assert(fip->field_passcount==1); | |
| 5021 if (dp->tdir_count>0xFFFF) | |
| 5022 err=TIFFReadDirEntryErrCount; | |
| 5023 else | |
| 5024 { | |
| 5025 err=TIFFReadDirEntryShortArray(tif,dp,&d
ata); | |
| 5026 if (err==TIFFReadDirEntryErrOk) | |
| 5027 { | |
| 5028 int m; | |
| 5029 m=TIFFSetField(tif,dp->tdir_tag,
(uint16)(dp->tdir_count),data); | |
| 5030 if (data!=0) | |
| 5031 _TIFFfree(data); | |
| 5032 if (!m) | |
| 5033 return(0); | |
| 5034 } | |
| 5035 } | |
| 5036 } | |
| 5037 break; | |
| 5038 case TIFF_SETGET_C16_UINT32: | |
| 5039 { | |
| 5040 uint32* data; | |
| 5041 assert(fip->field_readcount==TIFF_VARIABLE); | |
| 5042 assert(fip->field_passcount==1); | |
| 5043 if (dp->tdir_count>0xFFFF) | |
| 5044 err=TIFFReadDirEntryErrCount; | |
| 5045 else | |
| 5046 { | |
| 5047 err=TIFFReadDirEntryLongArray(tif,dp,&da
ta); | |
| 5048 if (err==TIFFReadDirEntryErrOk) | |
| 5049 { | |
| 5050 int m; | |
| 5051 m=TIFFSetField(tif,dp->tdir_tag,
(uint16)(dp->tdir_count),data); | |
| 5052 if (data!=0) | |
| 5053 _TIFFfree(data); | |
| 5054 if (!m) | |
| 5055 return(0); | |
| 5056 } | |
| 5057 } | |
| 5058 } | |
| 5059 break; | |
| 5060 case TIFF_SETGET_C16_UINT64: | |
| 5061 { | |
| 5062 uint64* data; | |
| 5063 assert(fip->field_readcount==TIFF_VARIABLE); | |
| 5064 assert(fip->field_passcount==1); | |
| 5065 if (dp->tdir_count>0xFFFF) | |
| 5066 err=TIFFReadDirEntryErrCount; | |
| 5067 else | |
| 5068 { | |
| 5069 err=TIFFReadDirEntryLong8Array(tif,dp,&d
ata); | |
| 5070 if (err==TIFFReadDirEntryErrOk) | |
| 5071 { | |
| 5072 int m; | |
| 5073 m=TIFFSetField(tif,dp->tdir_tag,
(uint16)(dp->tdir_count),data); | |
| 5074 if (data!=0) | |
| 5075 _TIFFfree(data); | |
| 5076 if (!m) | |
| 5077 return(0); | |
| 5078 } | |
| 5079 } | |
| 5080 } | |
| 5081 break; | |
| 5082 case TIFF_SETGET_C16_FLOAT: | |
| 5083 { | |
| 5084 float* data; | |
| 5085 assert(fip->field_readcount==TIFF_VARIABLE); | |
| 5086 assert(fip->field_passcount==1); | |
| 5087 if (dp->tdir_count>0xFFFF) | |
| 5088 err=TIFFReadDirEntryErrCount; | |
| 5089 else | |
| 5090 { | |
| 5091 err=TIFFReadDirEntryFloatArray(tif,dp,&d
ata); | |
| 5092 if (err==TIFFReadDirEntryErrOk) | |
| 5093 { | |
| 5094 int m; | |
| 5095 m=TIFFSetField(tif,dp->tdir_tag,
(uint16)(dp->tdir_count),data); | |
| 5096 if (data!=0) | |
| 5097 _TIFFfree(data); | |
| 5098 if (!m) | |
| 5099 return(0); | |
| 5100 } | |
| 5101 } | |
| 5102 } | |
| 5103 break; | |
| 5104 case TIFF_SETGET_C16_DOUBLE: | |
| 5105 { | |
| 5106 double* data; | |
| 5107 assert(fip->field_readcount==TIFF_VARIABLE); | |
| 5108 assert(fip->field_passcount==1); | |
| 5109 if (dp->tdir_count>0xFFFF) | |
| 5110 err=TIFFReadDirEntryErrCount; | |
| 5111 else | |
| 5112 { | |
| 5113 err=TIFFReadDirEntryDoubleArray(tif,dp,&
data); | |
| 5114 if (err==TIFFReadDirEntryErrOk) | |
| 5115 { | |
| 5116 int m; | |
| 5117 m=TIFFSetField(tif,dp->tdir_tag,
(uint16)(dp->tdir_count),data); | |
| 5118 if (data!=0) | |
| 5119 _TIFFfree(data); | |
| 5120 if (!m) | |
| 5121 return(0); | |
| 5122 } | |
| 5123 } | |
| 5124 } | |
| 5125 break; | |
| 5126 case TIFF_SETGET_C16_IFD8: | |
| 5127 { | |
| 5128 uint64* data; | |
| 5129 assert(fip->field_readcount==TIFF_VARIABLE); | |
| 5130 assert(fip->field_passcount==1); | |
| 5131 if (dp->tdir_count>0xFFFF) | |
| 5132 err=TIFFReadDirEntryErrCount; | |
| 5133 else | |
| 5134 { | |
| 5135 err=TIFFReadDirEntryIfd8Array(tif,dp,&da
ta); | |
| 5136 if (err==TIFFReadDirEntryErrOk) | |
| 5137 { | |
| 5138 int m; | |
| 5139 m=TIFFSetField(tif,dp->tdir_tag,
(uint16)(dp->tdir_count),data); | |
| 5140 if (data!=0) | |
| 5141 _TIFFfree(data); | |
| 5142 if (!m) | |
| 5143 return(0); | |
| 5144 } | |
| 5145 } | |
| 5146 } | |
| 5147 break; | |
| 5148 case TIFF_SETGET_C32_ASCII: | |
| 5149 { | |
| 5150 uint8* data; | |
| 5151 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5152 assert(fip->field_passcount==1); | |
| 5153 err=TIFFReadDirEntryByteArray(tif,dp,&data); | |
| 5154 if (err==TIFFReadDirEntryErrOk) | |
| 5155 { | |
| 5156 int m; | |
| 5157 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5158 if (data!=0) | |
| 5159 _TIFFfree(data); | |
| 5160 if (!m) | |
| 5161 return(0); | |
| 5162 } | |
| 5163 } | |
| 5164 break; | |
| 5165 case TIFF_SETGET_C32_UINT8: | |
| 5166 { | |
| 5167 uint8* data; | |
| 5168 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5169 assert(fip->field_passcount==1); | |
| 5170 err=TIFFReadDirEntryByteArray(tif,dp,&data); | |
| 5171 if (err==TIFFReadDirEntryErrOk) | |
| 5172 { | |
| 5173 int m; | |
| 5174 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5175 if (data!=0) | |
| 5176 _TIFFfree(data); | |
| 5177 if (!m) | |
| 5178 return(0); | |
| 5179 } | |
| 5180 } | |
| 5181 break; | |
| 5182 case TIFF_SETGET_C32_SINT8: | |
| 5183 { | |
| 5184 int8* data = NULL; | |
| 5185 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5186 assert(fip->field_passcount==1); | |
| 5187 err=TIFFReadDirEntrySbyteArray(tif,dp,&data); | |
| 5188 if (err==TIFFReadDirEntryErrOk) | |
| 5189 { | |
| 5190 int m; | |
| 5191 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5192 if (data!=0) | |
| 5193 _TIFFfree(data); | |
| 5194 if (!m) | |
| 5195 return(0); | |
| 5196 } | |
| 5197 } | |
| 5198 break; | |
| 5199 case TIFF_SETGET_C32_UINT16: | |
| 5200 { | |
| 5201 uint16* data; | |
| 5202 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5203 assert(fip->field_passcount==1); | |
| 5204 err=TIFFReadDirEntryShortArray(tif,dp,&data); | |
| 5205 if (err==TIFFReadDirEntryErrOk) | |
| 5206 { | |
| 5207 int m; | |
| 5208 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5209 if (data!=0) | |
| 5210 _TIFFfree(data); | |
| 5211 if (!m) | |
| 5212 return(0); | |
| 5213 } | |
| 5214 } | |
| 5215 break; | |
| 5216 case TIFF_SETGET_C32_SINT16: | |
| 5217 { | |
| 5218 int16* data = NULL; | |
| 5219 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5220 assert(fip->field_passcount==1); | |
| 5221 err=TIFFReadDirEntrySshortArray(tif,dp,&data); | |
| 5222 if (err==TIFFReadDirEntryErrOk) | |
| 5223 { | |
| 5224 int m; | |
| 5225 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5226 if (data!=0) | |
| 5227 _TIFFfree(data); | |
| 5228 if (!m) | |
| 5229 return(0); | |
| 5230 } | |
| 5231 } | |
| 5232 break; | |
| 5233 case TIFF_SETGET_C32_UINT32: | |
| 5234 { | |
| 5235 uint32* data; | |
| 5236 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5237 assert(fip->field_passcount==1); | |
| 5238 err=TIFFReadDirEntryLongArray(tif,dp,&data); | |
| 5239 if (err==TIFFReadDirEntryErrOk) | |
| 5240 { | |
| 5241 int m; | |
| 5242 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5243 if (data!=0) | |
| 5244 _TIFFfree(data); | |
| 5245 if (!m) | |
| 5246 return(0); | |
| 5247 } | |
| 5248 } | |
| 5249 break; | |
| 5250 case TIFF_SETGET_C32_SINT32: | |
| 5251 { | |
| 5252 int32* data = NULL; | |
| 5253 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5254 assert(fip->field_passcount==1); | |
| 5255 err=TIFFReadDirEntrySlongArray(tif,dp,&data); | |
| 5256 if (err==TIFFReadDirEntryErrOk) | |
| 5257 { | |
| 5258 int m; | |
| 5259 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5260 if (data!=0) | |
| 5261 _TIFFfree(data); | |
| 5262 if (!m) | |
| 5263 return(0); | |
| 5264 } | |
| 5265 } | |
| 5266 break; | |
| 5267 case TIFF_SETGET_C32_UINT64: | |
| 5268 { | |
| 5269 uint64* data; | |
| 5270 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5271 assert(fip->field_passcount==1); | |
| 5272 err=TIFFReadDirEntryLong8Array(tif,dp,&data); | |
| 5273 if (err==TIFFReadDirEntryErrOk) | |
| 5274 { | |
| 5275 int m; | |
| 5276 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5277 if (data!=0) | |
| 5278 _TIFFfree(data); | |
| 5279 if (!m) | |
| 5280 return(0); | |
| 5281 } | |
| 5282 } | |
| 5283 break; | |
| 5284 case TIFF_SETGET_C32_SINT64: | |
| 5285 { | |
| 5286 int64* data = NULL; | |
| 5287 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5288 assert(fip->field_passcount==1); | |
| 5289 err=TIFFReadDirEntrySlong8Array(tif,dp,&data); | |
| 5290 if (err==TIFFReadDirEntryErrOk) | |
| 5291 { | |
| 5292 int m; | |
| 5293 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5294 if (data!=0) | |
| 5295 _TIFFfree(data); | |
| 5296 if (!m) | |
| 5297 return(0); | |
| 5298 } | |
| 5299 } | |
| 5300 break; | |
| 5301 case TIFF_SETGET_C32_FLOAT: | |
| 5302 { | |
| 5303 float* data; | |
| 5304 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5305 assert(fip->field_passcount==1); | |
| 5306 err=TIFFReadDirEntryFloatArray(tif,dp,&data); | |
| 5307 if (err==TIFFReadDirEntryErrOk) | |
| 5308 { | |
| 5309 int m; | |
| 5310 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5311 if (data!=0) | |
| 5312 _TIFFfree(data); | |
| 5313 if (!m) | |
| 5314 return(0); | |
| 5315 } | |
| 5316 } | |
| 5317 break; | |
| 5318 case TIFF_SETGET_C32_DOUBLE: | |
| 5319 { | |
| 5320 double* data; | |
| 5321 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5322 assert(fip->field_passcount==1); | |
| 5323 err=TIFFReadDirEntryDoubleArray(tif,dp,&data); | |
| 5324 if (err==TIFFReadDirEntryErrOk) | |
| 5325 { | |
| 5326 int m; | |
| 5327 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5328 if (data!=0) | |
| 5329 _TIFFfree(data); | |
| 5330 if (!m) | |
| 5331 return(0); | |
| 5332 } | |
| 5333 } | |
| 5334 break; | |
| 5335 case TIFF_SETGET_C32_IFD8: | |
| 5336 { | |
| 5337 uint64* data; | |
| 5338 assert(fip->field_readcount==TIFF_VARIABLE2); | |
| 5339 assert(fip->field_passcount==1); | |
| 5340 err=TIFFReadDirEntryIfd8Array(tif,dp,&data); | |
| 5341 if (err==TIFFReadDirEntryErrOk) | |
| 5342 { | |
| 5343 int m; | |
| 5344 m=TIFFSetField(tif,dp->tdir_tag,(uint32)
(dp->tdir_count),data); | |
| 5345 if (data!=0) | |
| 5346 _TIFFfree(data); | |
| 5347 if (!m) | |
| 5348 return(0); | |
| 5349 } | |
| 5350 } | |
| 5351 break; | |
| 5352 default: | |
| 5353 assert(0); /* we should never get here */ | |
| 5354 break; | |
| 5355 } | |
| 5356 if (err!=TIFFReadDirEntryErrOk) | |
| 5357 { | |
| 5358 TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name :
"unknown tagname",recover); | |
| 5359 return(0); | |
| 5360 } | |
| 5361 return(1); | |
| 5362 } | |
| 5363 | |
| 5364 /* | |
| 5365 * Fetch a set of offsets or lengths. | |
| 5366 * While this routine says "strips", in fact it's also used for tiles. | |
| 5367 */ | |
| 5368 static int | |
| 5369 TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, uint32 nstrips, uint64** lpp) | |
| 5370 { | |
| 5371 static const char module[] = "TIFFFetchStripThing"; | |
| 5372 enum TIFFReadDirEntryErr err; | |
| 5373 uint64* data; | |
| 5374 err=TIFFReadDirEntryLong8Array(tif,dir,&data); | |
| 5375 if (err!=TIFFReadDirEntryErrOk) | |
| 5376 { | |
| 5377 const TIFFField* fip = TIFFFieldWithTag(tif,dir->tdir_tag); | |
| 5378 TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name :
"unknown tagname",0); | |
| 5379 return(0); | |
| 5380 } | |
| 5381 if (dir->tdir_count!=(uint64)nstrips) | |
| 5382 { | |
| 5383 uint64* resizeddata; | |
| 5384 resizeddata=(uint64*)_TIFFCheckMalloc(tif,nstrips,sizeof(uint64)
,"for strip array"); | |
| 5385 if (resizeddata==0) { | |
| 5386 _TIFFfree(data); | |
| 5387 return(0); | |
| 5388 } | |
| 5389 if (dir->tdir_count<(uint64)nstrips) | |
| 5390 { | |
| 5391 _TIFFmemcpy(resizeddata,data,(uint32)dir->tdir_count*siz
eof(uint64)); | |
| 5392 _TIFFmemset(resizeddata+(uint32)dir->tdir_count,0,(nstri
ps-(uint32)dir->tdir_count)*sizeof(uint64)); | |
| 5393 } | |
| 5394 else | |
| 5395 _TIFFmemcpy(resizeddata,data,nstrips*sizeof(uint64)); | |
| 5396 _TIFFfree(data); | |
| 5397 data=resizeddata; | |
| 5398 } | |
| 5399 *lpp=data; | |
| 5400 return(1); | |
| 5401 } | |
| 5402 | |
| 5403 /* | |
| 5404 * Fetch and set the SubjectDistance EXIF tag. | |
| 5405 */ | |
| 5406 static int | |
| 5407 TIFFFetchSubjectDistance(TIFF* tif, TIFFDirEntry* dir) | |
| 5408 { | |
| 5409 static const char module[] = "TIFFFetchSubjectDistance"; | |
| 5410 enum TIFFReadDirEntryErr err; | |
| 5411 UInt64Aligned_t m; | |
| 5412 m.l=0; | |
| 5413 assert(sizeof(double)==8); | |
| 5414 assert(sizeof(uint64)==8); | |
| 5415 assert(sizeof(uint32)==4); | |
| 5416 if (dir->tdir_count!=1) | |
| 5417 err=TIFFReadDirEntryErrCount; | |
| 5418 else if (dir->tdir_type!=TIFF_RATIONAL) | |
| 5419 err=TIFFReadDirEntryErrType; | |
| 5420 else | |
| 5421 { | |
| 5422 if (!(tif->tif_flags&TIFF_BIGTIFF)) | |
| 5423 { | |
| 5424 uint32 offset; | |
| 5425 offset=*(uint32*)(&dir->tdir_offset); | |
| 5426 if (tif->tif_flags&TIFF_SWAB) | |
| 5427 TIFFSwabLong(&offset); | |
| 5428 err=TIFFReadDirEntryData(tif,offset,8,m.i); | |
| 5429 } | |
| 5430 else | |
| 5431 { | |
| 5432 m.l=dir->tdir_offset.toff_long8; | |
| 5433 err=TIFFReadDirEntryErrOk; | |
| 5434 } | |
| 5435 } | |
| 5436 if (err==TIFFReadDirEntryErrOk) | |
| 5437 { | |
| 5438 double n; | |
| 5439 if (tif->tif_flags&TIFF_SWAB) | |
| 5440 TIFFSwabArrayOfLong(m.i,2); | |
| 5441 if (m.i[0]==0) | |
| 5442 n=0.0; | |
| 5443 else if (m.i[0]==0xFFFFFFFF) | |
| 5444 /* | |
| 5445 * XXX: Numerator 0xFFFFFFFF means that we have infinite | |
| 5446 * distance. Indicate that with a negative floating poin
t | |
| 5447 * SubjectDistance value. | |
| 5448 */ | |
| 5449 n=-1.0; | |
| 5450 else | |
| 5451 n=(double)m.i[0]/(double)m.i[1]; | |
| 5452 return(TIFFSetField(tif,dir->tdir_tag,n)); | |
| 5453 } | |
| 5454 else | |
| 5455 { | |
| 5456 TIFFReadDirEntryOutputErr(tif,err,module,"SubjectDistance",TRUE)
; | |
| 5457 return(0); | |
| 5458 } | |
| 5459 } | |
| 5460 | |
| 5461 /* | |
| 5462 * Replace a single strip (tile) of uncompressed data by multiple strips | |
| 5463 * (tiles), each approximately STRIP_SIZE_DEFAULT bytes. This is useful for | |
| 5464 * dealing with large images or for dealing with machines with a limited | |
| 5465 * amount memory. | |
| 5466 */ | |
| 5467 static void | |
| 5468 ChopUpSingleUncompressedStrip(TIFF* tif) | |
| 5469 { | |
| 5470 register TIFFDirectory *td = &tif->tif_dir; | |
| 5471 uint64 bytecount; | |
| 5472 uint64 offset; | |
| 5473 uint32 rowblock; | |
| 5474 uint64 rowblockbytes; | |
| 5475 uint64 stripbytes; | |
| 5476 uint32 strip; | |
| 5477 uint64 nstrips64; | |
| 5478 uint32 nstrips32; | |
| 5479 uint32 rowsperstrip; | |
| 5480 uint64* newcounts; | |
| 5481 uint64* newoffsets; | |
| 5482 | |
| 5483 bytecount = td->td_stripbytecount[0]; | |
| 5484 offset = td->td_stripoffset[0]; | |
| 5485 assert(td->td_planarconfig == PLANARCONFIG_CONTIG); | |
| 5486 if ((td->td_photometric == PHOTOMETRIC_YCBCR)&& | |
| 5487 (!isUpSampled(tif))) | |
| 5488 rowblock = td->td_ycbcrsubsampling[1]; | |
| 5489 else | |
| 5490 rowblock = 1; | |
| 5491 rowblockbytes = TIFFVTileSize64(tif, rowblock); | |
| 5492 /* | |
| 5493 * Make the rows hold at least one scanline, but fill specified amount | |
| 5494 * of data if possible. | |
| 5495 */ | |
| 5496 if (rowblockbytes > STRIP_SIZE_DEFAULT) { | |
| 5497 stripbytes = rowblockbytes; | |
| 5498 rowsperstrip = rowblock; | |
| 5499 } else if (rowblockbytes > 0 ) { | |
| 5500 uint32 rowblocksperstrip; | |
| 5501 rowblocksperstrip = (uint32) (STRIP_SIZE_DEFAULT / rowblockbytes
); | |
| 5502 rowsperstrip = rowblocksperstrip * rowblock; | |
| 5503 stripbytes = rowblocksperstrip * rowblockbytes; | |
| 5504 } | |
| 5505 else | |
| 5506 return; | |
| 5507 | |
| 5508 /* | |
| 5509 * never increase the number of strips in an image | |
| 5510 */ | |
| 5511 if (rowsperstrip >= td->td_rowsperstrip) | |
| 5512 return; | |
| 5513 nstrips64 = TIFFhowmany_64(bytecount, stripbytes); | |
| 5514 if ((nstrips64==0)||(nstrips64>0xFFFFFFFF)) /* something is wonky, do no
thing. */ | |
| 5515 return; | |
| 5516 nstrips32 = (uint32)nstrips64; | |
| 5517 | |
| 5518 newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64), | |
| 5519 "for chopped \"StripByteCounts\" array"); | |
| 5520 newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64), | |
| 5521 "for chopped \"StripOffsets\" array"); | |
| 5522 if (newcounts == NULL || newoffsets == NULL) { | |
| 5523 /* | |
| 5524 * Unable to allocate new strip information, give up and use | |
| 5525 * the original one strip information. | |
| 5526 */ | |
| 5527 if (newcounts != NULL) | |
| 5528 _TIFFfree(newcounts); | |
| 5529 if (newoffsets != NULL) | |
| 5530 _TIFFfree(newoffsets); | |
| 5531 return; | |
| 5532 } | |
| 5533 /* | |
| 5534 * Fill the strip information arrays with new bytecounts and offsets | |
| 5535 * that reflect the broken-up format. | |
| 5536 */ | |
| 5537 for (strip = 0; strip < nstrips32; strip++) { | |
| 5538 if (stripbytes > bytecount) | |
| 5539 stripbytes = bytecount; | |
| 5540 newcounts[strip] = stripbytes; | |
| 5541 newoffsets[strip] = offset; | |
| 5542 offset += stripbytes; | |
| 5543 bytecount -= stripbytes; | |
| 5544 } | |
| 5545 /* | |
| 5546 * Replace old single strip info with multi-strip info. | |
| 5547 */ | |
| 5548 td->td_stripsperimage = td->td_nstrips = nstrips32; | |
| 5549 TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); | |
| 5550 | |
| 5551 _TIFFfree(td->td_stripbytecount); | |
| 5552 _TIFFfree(td->td_stripoffset); | |
| 5553 td->td_stripbytecount = newcounts; | |
| 5554 td->td_stripoffset = newoffsets; | |
| 5555 td->td_stripbytecountsorted = 1; | |
| 5556 } | |
| 5557 | |
| 5558 int _TIFFFillStriles( TIFF *tif ) | |
| 5559 { | |
| 5560 #if defined(DEFER_STRILE_LOAD) | |
| 5561 register TIFFDirectory *td = &tif->tif_dir; | |
| 5562 int return_value = 1; | |
| 5563 | |
| 5564 if( td->td_stripoffset != NULL ) | |
| 5565 return 1; | |
| 5566 | |
| 5567 if( td->td_stripoffset_entry.tdir_count == 0 ) | |
| 5568 return 0; | |
| 5569 | |
| 5570 if (!TIFFFetchStripThing(tif,&(td->td_stripoffset_entry), | |
| 5571 td->td_nstrips,&td->td_stripoffset)) | |
| 5572 { | |
| 5573 return_value = 0; | |
| 5574 } | |
| 5575 | |
| 5576 if (!TIFFFetchStripThing(tif,&(td->td_stripbytecount_entry), | |
| 5577 td->td_nstrips,&td->td_stripbytecount)) | |
| 5578 { | |
| 5579 return_value = 0; | |
| 5580 } | |
| 5581 | |
| 5582 _TIFFmemset( &(td->td_stripoffset_entry), 0, sizeof(TIFFDirEntry)); | |
| 5583 _TIFFmemset( &(td->td_stripbytecount_entry), 0, sizeof(TIFFDirEntry)); | |
| 5584 | |
| 5585 if (tif->tif_dir.td_nstrips > 1 && return_value == 1 ) { | |
| 5586 uint32 strip; | |
| 5587 | |
| 5588 tif->tif_dir.td_stripbytecountsorted = 1; | |
| 5589 for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) { | |
| 5590 if (tif->tif_dir.td_stripoffset[strip - 1] > | |
| 5591 tif->tif_dir.td_stripoffset[strip]) { | |
| 5592 tif->tif_dir.td_stripbytecountsorted = 0; | |
| 5593 break; | |
| 5594 } | |
| 5595 } | |
| 5596 } | |
| 5597 | |
| 5598 return return_value; | |
| 5599 #else /* !defined(DEFER_STRILE_LOAD) */ | |
| 5600 (void) tif; | |
| 5601 return 1; | |
| 5602 #endif | |
| 5603 } | |
| 5604 | |
| 5605 | |
| 5606 /* vim: set ts=8 sts=8 sw=8 noet: */ | |
| 5607 /* | |
| 5608 * Local Variables: | |
| 5609 * mode: c | |
| 5610 * c-basic-offset: 8 | |
| 5611 * fill-column: 78 | |
| 5612 * End: | |
| 5613 */ | |
| 5614 | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1563103002:
XFA: Upgrade to libtiff 4.0.6. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@xfa