Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 1 | //--------------------------------------------------------------------------------- |
| 2 | // |
| 3 | // Little Color Management System |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4 | // Copyright (c) 1998-2023 Marti Maria Saguer |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 5 | // |
| 6 | // Permission is hereby granted, free of charge, to any person obtaining |
| 7 | // a copy of this software and associated documentation files (the "Software"), |
| 8 | // to deal in the Software without restriction, including without limitation |
| 9 | // the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 10 | // and/or sell copies of the Software, and to permit persons to whom the Software |
| 11 | // is furnished to do so, subject to the following conditions: |
| 12 | // |
| 13 | // The above copyright notice and this permission notice shall be included in |
| 14 | // all copies or substantial portions of the Software. |
| 15 | // |
| 16 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 17 | // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO |
| 18 | // THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 19 | // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| 20 | // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| 21 | // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 22 | // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 23 | // |
| 24 | //--------------------------------------------------------------------------------- |
| 25 | // |
| 26 | |
| 27 | #include "lcms2_internal.h" |
| 28 | |
| 29 | |
| 30 | // ---------------------------------------------------------------------------------- |
| 31 | // Encoding & Decoding support functions |
| 32 | // ---------------------------------------------------------------------------------- |
| 33 | |
| 34 | // Little-Endian to Big-Endian |
| 35 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 36 | // Adjust a word value after being read/ before being written from/to an ICC profile |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 37 | cmsUInt16Number CMSEXPORT _cmsAdjustEndianess16(cmsUInt16Number Word) |
| 38 | { |
| 39 | #ifndef CMS_USE_BIG_ENDIAN |
| 40 | |
| 41 | cmsUInt8Number* pByte = (cmsUInt8Number*) &Word; |
| 42 | cmsUInt8Number tmp; |
| 43 | |
| 44 | tmp = pByte[0]; |
| 45 | pByte[0] = pByte[1]; |
| 46 | pByte[1] = tmp; |
| 47 | #endif |
| 48 | |
| 49 | return Word; |
| 50 | } |
| 51 | |
| 52 | |
| 53 | // Transports to properly encoded values - note that icc profiles does use big endian notation. |
| 54 | |
| 55 | // 1 2 3 4 |
| 56 | // 4 3 2 1 |
| 57 | |
| 58 | cmsUInt32Number CMSEXPORT _cmsAdjustEndianess32(cmsUInt32Number DWord) |
| 59 | { |
| 60 | #ifndef CMS_USE_BIG_ENDIAN |
| 61 | |
| 62 | cmsUInt8Number* pByte = (cmsUInt8Number*) &DWord; |
| 63 | cmsUInt8Number temp1; |
| 64 | cmsUInt8Number temp2; |
| 65 | |
| 66 | temp1 = *pByte++; |
| 67 | temp2 = *pByte++; |
| 68 | *(pByte-1) = *pByte; |
| 69 | *pByte++ = temp2; |
| 70 | *(pByte-3) = *pByte; |
| 71 | *pByte = temp1; |
| 72 | #endif |
| 73 | return DWord; |
| 74 | } |
| 75 | |
| 76 | // 1 2 3 4 5 6 7 8 |
| 77 | // 8 7 6 5 4 3 2 1 |
| 78 | |
| 79 | void CMSEXPORT _cmsAdjustEndianess64(cmsUInt64Number* Result, cmsUInt64Number* QWord) |
| 80 | { |
| 81 | |
| 82 | #ifndef CMS_USE_BIG_ENDIAN |
| 83 | |
| 84 | cmsUInt8Number* pIn = (cmsUInt8Number*) QWord; |
| 85 | cmsUInt8Number* pOut = (cmsUInt8Number*) Result; |
| 86 | |
| 87 | _cmsAssert(Result != NULL); |
| 88 | |
| 89 | pOut[7] = pIn[0]; |
| 90 | pOut[6] = pIn[1]; |
| 91 | pOut[5] = pIn[2]; |
| 92 | pOut[4] = pIn[3]; |
| 93 | pOut[3] = pIn[4]; |
| 94 | pOut[2] = pIn[5]; |
| 95 | pOut[1] = pIn[6]; |
| 96 | pOut[0] = pIn[7]; |
| 97 | |
| 98 | #else |
| 99 | _cmsAssert(Result != NULL); |
| 100 | |
| 101 | # ifdef CMS_DONT_USE_INT64 |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 102 | (*Result)[0] = (*QWord)[0]; |
| 103 | (*Result)[1] = (*QWord)[1]; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 104 | # else |
| 105 | *Result = *QWord; |
| 106 | # endif |
| 107 | #endif |
| 108 | } |
| 109 | |
| 110 | // Auxiliary -- read 8, 16 and 32-bit numbers |
| 111 | cmsBool CMSEXPORT _cmsReadUInt8Number(cmsIOHANDLER* io, cmsUInt8Number* n) |
| 112 | { |
| 113 | cmsUInt8Number tmp; |
| 114 | |
| 115 | _cmsAssert(io != NULL); |
| 116 | |
| 117 | if (io -> Read(io, &tmp, sizeof(cmsUInt8Number), 1) != 1) |
| 118 | return FALSE; |
| 119 | |
| 120 | if (n != NULL) *n = tmp; |
| 121 | return TRUE; |
| 122 | } |
| 123 | |
| 124 | cmsBool CMSEXPORT _cmsReadUInt16Number(cmsIOHANDLER* io, cmsUInt16Number* n) |
| 125 | { |
| 126 | cmsUInt16Number tmp; |
| 127 | |
| 128 | _cmsAssert(io != NULL); |
| 129 | |
| 130 | if (io -> Read(io, &tmp, sizeof(cmsUInt16Number), 1) != 1) |
| 131 | return FALSE; |
| 132 | |
| 133 | if (n != NULL) *n = _cmsAdjustEndianess16(tmp); |
| 134 | return TRUE; |
| 135 | } |
| 136 | |
| 137 | cmsBool CMSEXPORT _cmsReadUInt16Array(cmsIOHANDLER* io, cmsUInt32Number n, cmsUInt16Number* Array) |
| 138 | { |
| 139 | cmsUInt32Number i; |
| 140 | |
| 141 | _cmsAssert(io != NULL); |
| 142 | |
| 143 | for (i=0; i < n; i++) { |
| 144 | |
| 145 | if (Array != NULL) { |
| 146 | if (!_cmsReadUInt16Number(io, Array + i)) return FALSE; |
| 147 | } |
| 148 | else { |
| 149 | if (!_cmsReadUInt16Number(io, NULL)) return FALSE; |
| 150 | } |
| 151 | |
| 152 | } |
| 153 | return TRUE; |
| 154 | } |
| 155 | |
| 156 | cmsBool CMSEXPORT _cmsReadUInt32Number(cmsIOHANDLER* io, cmsUInt32Number* n) |
| 157 | { |
| 158 | cmsUInt32Number tmp; |
| 159 | |
| 160 | _cmsAssert(io != NULL); |
| 161 | |
| 162 | if (io -> Read(io, &tmp, sizeof(cmsUInt32Number), 1) != 1) |
| 163 | return FALSE; |
| 164 | |
| 165 | if (n != NULL) *n = _cmsAdjustEndianess32(tmp); |
| 166 | return TRUE; |
| 167 | } |
| 168 | |
| 169 | cmsBool CMSEXPORT _cmsReadFloat32Number(cmsIOHANDLER* io, cmsFloat32Number* n) |
| 170 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 171 | union typeConverter { |
| 172 | cmsUInt32Number integer; |
| 173 | cmsFloat32Number floating_point; |
| 174 | } tmp; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 175 | |
| 176 | _cmsAssert(io != NULL); |
| 177 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 178 | if (io->Read(io, &tmp.integer, sizeof(cmsUInt32Number), 1) != 1) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 179 | return FALSE; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 180 | |
| 181 | if (n != NULL) { |
| 182 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 183 | tmp.integer = _cmsAdjustEndianess32(tmp.integer); |
| 184 | *n = tmp.floating_point; |
| 185 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 186 | // Safeguard which covers against absurd values |
| 187 | if (*n > 1E+20 || *n < -1E+20) return FALSE; |
| 188 | |
| 189 | #if defined(_MSC_VER) && _MSC_VER < 1800 |
| 190 | return TRUE; |
| 191 | #elif defined (__BORLANDC__) |
| 192 | return TRUE; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 193 | #elif !defined(_MSC_VER) && (defined(__STDC_VERSION__) && __STDC_VERSION__ < 199901L) |
| 194 | return TRUE; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 195 | #else |
| 196 | |
| 197 | // fpclassify() required by C99 (only provided by MSVC >= 1800, VS2013 onwards) |
| 198 | return ((fpclassify(*n) == FP_ZERO) || (fpclassify(*n) == FP_NORMAL)); |
| 199 | #endif |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 200 | } |
| 201 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 202 | return TRUE; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 203 | } |
| 204 | |
| 205 | |
| 206 | cmsBool CMSEXPORT _cmsReadUInt64Number(cmsIOHANDLER* io, cmsUInt64Number* n) |
| 207 | { |
| 208 | cmsUInt64Number tmp; |
| 209 | |
| 210 | _cmsAssert(io != NULL); |
| 211 | |
| 212 | if (io -> Read(io, &tmp, sizeof(cmsUInt64Number), 1) != 1) |
| 213 | return FALSE; |
| 214 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 215 | if (n != NULL) { |
| 216 | |
| 217 | _cmsAdjustEndianess64(n, &tmp); |
| 218 | } |
| 219 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 220 | return TRUE; |
| 221 | } |
| 222 | |
| 223 | |
| 224 | cmsBool CMSEXPORT _cmsRead15Fixed16Number(cmsIOHANDLER* io, cmsFloat64Number* n) |
| 225 | { |
| 226 | cmsUInt32Number tmp; |
| 227 | |
| 228 | _cmsAssert(io != NULL); |
| 229 | |
| 230 | if (io -> Read(io, &tmp, sizeof(cmsUInt32Number), 1) != 1) |
| 231 | return FALSE; |
| 232 | |
| 233 | if (n != NULL) { |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 234 | *n = _cms15Fixed16toDouble((cmsS15Fixed16Number) _cmsAdjustEndianess32(tmp)); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 235 | } |
| 236 | |
| 237 | return TRUE; |
| 238 | } |
| 239 | |
| 240 | |
| 241 | cmsBool CMSEXPORT _cmsReadXYZNumber(cmsIOHANDLER* io, cmsCIEXYZ* XYZ) |
| 242 | { |
| 243 | cmsEncodedXYZNumber xyz; |
| 244 | |
| 245 | _cmsAssert(io != NULL); |
| 246 | |
| 247 | if (io ->Read(io, &xyz, sizeof(cmsEncodedXYZNumber), 1) != 1) return FALSE; |
| 248 | |
| 249 | if (XYZ != NULL) { |
| 250 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 251 | XYZ->X = _cms15Fixed16toDouble((cmsS15Fixed16Number) _cmsAdjustEndianess32((cmsUInt32Number) xyz.X)); |
| 252 | XYZ->Y = _cms15Fixed16toDouble((cmsS15Fixed16Number) _cmsAdjustEndianess32((cmsUInt32Number) xyz.Y)); |
| 253 | XYZ->Z = _cms15Fixed16toDouble((cmsS15Fixed16Number) _cmsAdjustEndianess32((cmsUInt32Number) xyz.Z)); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 254 | } |
| 255 | return TRUE; |
| 256 | } |
| 257 | |
| 258 | cmsBool CMSEXPORT _cmsWriteUInt8Number(cmsIOHANDLER* io, cmsUInt8Number n) |
| 259 | { |
| 260 | _cmsAssert(io != NULL); |
| 261 | |
| 262 | if (io -> Write(io, sizeof(cmsUInt8Number), &n) != 1) |
| 263 | return FALSE; |
| 264 | |
| 265 | return TRUE; |
| 266 | } |
| 267 | |
| 268 | cmsBool CMSEXPORT _cmsWriteUInt16Number(cmsIOHANDLER* io, cmsUInt16Number n) |
| 269 | { |
| 270 | cmsUInt16Number tmp; |
| 271 | |
| 272 | _cmsAssert(io != NULL); |
| 273 | |
| 274 | tmp = _cmsAdjustEndianess16(n); |
| 275 | if (io -> Write(io, sizeof(cmsUInt16Number), &tmp) != 1) |
| 276 | return FALSE; |
| 277 | |
| 278 | return TRUE; |
| 279 | } |
| 280 | |
| 281 | cmsBool CMSEXPORT _cmsWriteUInt16Array(cmsIOHANDLER* io, cmsUInt32Number n, const cmsUInt16Number* Array) |
| 282 | { |
| 283 | cmsUInt32Number i; |
| 284 | |
| 285 | _cmsAssert(io != NULL); |
| 286 | _cmsAssert(Array != NULL); |
| 287 | |
| 288 | for (i=0; i < n; i++) { |
| 289 | if (!_cmsWriteUInt16Number(io, Array[i])) return FALSE; |
| 290 | } |
| 291 | |
| 292 | return TRUE; |
| 293 | } |
| 294 | |
| 295 | cmsBool CMSEXPORT _cmsWriteUInt32Number(cmsIOHANDLER* io, cmsUInt32Number n) |
| 296 | { |
| 297 | cmsUInt32Number tmp; |
| 298 | |
| 299 | _cmsAssert(io != NULL); |
| 300 | |
| 301 | tmp = _cmsAdjustEndianess32(n); |
| 302 | if (io -> Write(io, sizeof(cmsUInt32Number), &tmp) != 1) |
| 303 | return FALSE; |
| 304 | |
| 305 | return TRUE; |
| 306 | } |
| 307 | |
| 308 | |
| 309 | cmsBool CMSEXPORT _cmsWriteFloat32Number(cmsIOHANDLER* io, cmsFloat32Number n) |
| 310 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 311 | union typeConverter { |
| 312 | cmsUInt32Number integer; |
| 313 | cmsFloat32Number floating_point; |
| 314 | } tmp; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 315 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 316 | tmp.floating_point = n; |
| 317 | tmp.integer = _cmsAdjustEndianess32(tmp.integer); |
| 318 | if (io -> Write(io, sizeof(cmsUInt32Number), &tmp.integer) != 1) |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 319 | return FALSE; |
| 320 | |
| 321 | return TRUE; |
| 322 | } |
| 323 | |
| 324 | cmsBool CMSEXPORT _cmsWriteUInt64Number(cmsIOHANDLER* io, cmsUInt64Number* n) |
| 325 | { |
| 326 | cmsUInt64Number tmp; |
| 327 | |
| 328 | _cmsAssert(io != NULL); |
| 329 | |
| 330 | _cmsAdjustEndianess64(&tmp, n); |
| 331 | if (io -> Write(io, sizeof(cmsUInt64Number), &tmp) != 1) |
| 332 | return FALSE; |
| 333 | |
| 334 | return TRUE; |
| 335 | } |
| 336 | |
| 337 | cmsBool CMSEXPORT _cmsWrite15Fixed16Number(cmsIOHANDLER* io, cmsFloat64Number n) |
| 338 | { |
| 339 | cmsUInt32Number tmp; |
| 340 | |
| 341 | _cmsAssert(io != NULL); |
| 342 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 343 | tmp = _cmsAdjustEndianess32((cmsUInt32Number) _cmsDoubleTo15Fixed16(n)); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 344 | if (io -> Write(io, sizeof(cmsUInt32Number), &tmp) != 1) |
| 345 | return FALSE; |
| 346 | |
| 347 | return TRUE; |
| 348 | } |
| 349 | |
| 350 | cmsBool CMSEXPORT _cmsWriteXYZNumber(cmsIOHANDLER* io, const cmsCIEXYZ* XYZ) |
| 351 | { |
| 352 | cmsEncodedXYZNumber xyz; |
| 353 | |
| 354 | _cmsAssert(io != NULL); |
| 355 | _cmsAssert(XYZ != NULL); |
| 356 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 357 | xyz.X = (cmsS15Fixed16Number) _cmsAdjustEndianess32((cmsUInt32Number) _cmsDoubleTo15Fixed16(XYZ->X)); |
| 358 | xyz.Y = (cmsS15Fixed16Number) _cmsAdjustEndianess32((cmsUInt32Number) _cmsDoubleTo15Fixed16(XYZ->Y)); |
| 359 | xyz.Z = (cmsS15Fixed16Number) _cmsAdjustEndianess32((cmsUInt32Number) _cmsDoubleTo15Fixed16(XYZ->Z)); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 360 | |
| 361 | return io -> Write(io, sizeof(cmsEncodedXYZNumber), &xyz); |
| 362 | } |
| 363 | |
| 364 | // from Fixed point 8.8 to double |
| 365 | cmsFloat64Number CMSEXPORT _cms8Fixed8toDouble(cmsUInt16Number fixed8) |
| 366 | { |
| 367 | cmsUInt8Number msb, lsb; |
| 368 | |
| 369 | lsb = (cmsUInt8Number) (fixed8 & 0xff); |
| 370 | msb = (cmsUInt8Number) (((cmsUInt16Number) fixed8 >> 8) & 0xff); |
| 371 | |
| 372 | return (cmsFloat64Number) ((cmsFloat64Number) msb + ((cmsFloat64Number) lsb / 256.0)); |
| 373 | } |
| 374 | |
| 375 | cmsUInt16Number CMSEXPORT _cmsDoubleTo8Fixed8(cmsFloat64Number val) |
| 376 | { |
| 377 | cmsS15Fixed16Number GammaFixed32 = _cmsDoubleTo15Fixed16(val); |
| 378 | return (cmsUInt16Number) ((GammaFixed32 >> 8) & 0xFFFF); |
| 379 | } |
| 380 | |
| 381 | // from Fixed point 15.16 to double |
| 382 | cmsFloat64Number CMSEXPORT _cms15Fixed16toDouble(cmsS15Fixed16Number fix32) |
| 383 | { |
| 384 | cmsFloat64Number floater, sign, mid; |
| 385 | int Whole, FracPart; |
| 386 | |
| 387 | sign = (fix32 < 0 ? -1 : 1); |
| 388 | fix32 = abs(fix32); |
| 389 | |
| 390 | Whole = (cmsUInt16Number)(fix32 >> 16) & 0xffff; |
| 391 | FracPart = (cmsUInt16Number)(fix32 & 0xffff); |
| 392 | |
| 393 | mid = (cmsFloat64Number) FracPart / 65536.0; |
| 394 | floater = (cmsFloat64Number) Whole + mid; |
| 395 | |
| 396 | return sign * floater; |
| 397 | } |
| 398 | |
| 399 | // from double to Fixed point 15.16 |
| 400 | cmsS15Fixed16Number CMSEXPORT _cmsDoubleTo15Fixed16(cmsFloat64Number v) |
| 401 | { |
| 402 | return ((cmsS15Fixed16Number) floor((v)*65536.0 + 0.5)); |
| 403 | } |
| 404 | |
| 405 | // Date/Time functions |
| 406 | |
| 407 | void CMSEXPORT _cmsDecodeDateTimeNumber(const cmsDateTimeNumber *Source, struct tm *Dest) |
| 408 | { |
| 409 | |
| 410 | _cmsAssert(Dest != NULL); |
| 411 | _cmsAssert(Source != NULL); |
| 412 | |
| 413 | Dest->tm_sec = _cmsAdjustEndianess16(Source->seconds); |
| 414 | Dest->tm_min = _cmsAdjustEndianess16(Source->minutes); |
| 415 | Dest->tm_hour = _cmsAdjustEndianess16(Source->hours); |
| 416 | Dest->tm_mday = _cmsAdjustEndianess16(Source->day); |
| 417 | Dest->tm_mon = _cmsAdjustEndianess16(Source->month) - 1; |
| 418 | Dest->tm_year = _cmsAdjustEndianess16(Source->year) - 1900; |
| 419 | Dest->tm_wday = -1; |
| 420 | Dest->tm_yday = -1; |
| 421 | Dest->tm_isdst = 0; |
| 422 | } |
| 423 | |
| 424 | void CMSEXPORT _cmsEncodeDateTimeNumber(cmsDateTimeNumber *Dest, const struct tm *Source) |
| 425 | { |
| 426 | _cmsAssert(Dest != NULL); |
| 427 | _cmsAssert(Source != NULL); |
| 428 | |
| 429 | Dest->seconds = _cmsAdjustEndianess16((cmsUInt16Number) Source->tm_sec); |
| 430 | Dest->minutes = _cmsAdjustEndianess16((cmsUInt16Number) Source->tm_min); |
| 431 | Dest->hours = _cmsAdjustEndianess16((cmsUInt16Number) Source->tm_hour); |
| 432 | Dest->day = _cmsAdjustEndianess16((cmsUInt16Number) Source->tm_mday); |
| 433 | Dest->month = _cmsAdjustEndianess16((cmsUInt16Number) (Source->tm_mon + 1)); |
| 434 | Dest->year = _cmsAdjustEndianess16((cmsUInt16Number) (Source->tm_year + 1900)); |
| 435 | } |
| 436 | |
| 437 | // Read base and return type base |
| 438 | cmsTagTypeSignature CMSEXPORT _cmsReadTypeBase(cmsIOHANDLER* io) |
| 439 | { |
| 440 | _cmsTagBase Base; |
| 441 | |
| 442 | _cmsAssert(io != NULL); |
| 443 | |
| 444 | if (io -> Read(io, &Base, sizeof(_cmsTagBase), 1) != 1) |
| 445 | return (cmsTagTypeSignature) 0; |
| 446 | |
| 447 | return (cmsTagTypeSignature) _cmsAdjustEndianess32(Base.sig); |
| 448 | } |
| 449 | |
| 450 | // Setup base marker |
| 451 | cmsBool CMSEXPORT _cmsWriteTypeBase(cmsIOHANDLER* io, cmsTagTypeSignature sig) |
| 452 | { |
| 453 | _cmsTagBase Base; |
| 454 | |
| 455 | _cmsAssert(io != NULL); |
| 456 | |
| 457 | Base.sig = (cmsTagTypeSignature) _cmsAdjustEndianess32(sig); |
| 458 | memset(&Base.reserved, 0, sizeof(Base.reserved)); |
| 459 | return io -> Write(io, sizeof(_cmsTagBase), &Base); |
| 460 | } |
| 461 | |
| 462 | cmsBool CMSEXPORT _cmsReadAlignment(cmsIOHANDLER* io) |
| 463 | { |
| 464 | cmsUInt8Number Buffer[4]; |
| 465 | cmsUInt32Number NextAligned, At; |
| 466 | cmsUInt32Number BytesToNextAlignedPos; |
| 467 | |
| 468 | _cmsAssert(io != NULL); |
| 469 | |
| 470 | At = io -> Tell(io); |
| 471 | NextAligned = _cmsALIGNLONG(At); |
| 472 | BytesToNextAlignedPos = NextAligned - At; |
| 473 | if (BytesToNextAlignedPos == 0) return TRUE; |
| 474 | if (BytesToNextAlignedPos > 4) return FALSE; |
| 475 | |
| 476 | return (io ->Read(io, Buffer, BytesToNextAlignedPos, 1) == 1); |
| 477 | } |
| 478 | |
| 479 | cmsBool CMSEXPORT _cmsWriteAlignment(cmsIOHANDLER* io) |
| 480 | { |
| 481 | cmsUInt8Number Buffer[4]; |
| 482 | cmsUInt32Number NextAligned, At; |
| 483 | cmsUInt32Number BytesToNextAlignedPos; |
| 484 | |
| 485 | _cmsAssert(io != NULL); |
| 486 | |
| 487 | At = io -> Tell(io); |
| 488 | NextAligned = _cmsALIGNLONG(At); |
| 489 | BytesToNextAlignedPos = NextAligned - At; |
| 490 | if (BytesToNextAlignedPos == 0) return TRUE; |
| 491 | if (BytesToNextAlignedPos > 4) return FALSE; |
| 492 | |
| 493 | memset(Buffer, 0, BytesToNextAlignedPos); |
| 494 | return io -> Write(io, BytesToNextAlignedPos, Buffer); |
| 495 | } |
| 496 | |
| 497 | |
| 498 | // To deal with text streams. 2K at most |
| 499 | cmsBool CMSEXPORT _cmsIOPrintf(cmsIOHANDLER* io, const char* frm, ...) |
| 500 | { |
| 501 | va_list args; |
| 502 | int len; |
| 503 | cmsUInt8Number Buffer[2048]; |
| 504 | cmsBool rc; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 505 | cmsUInt8Number* ptr; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 506 | |
| 507 | _cmsAssert(io != NULL); |
| 508 | _cmsAssert(frm != NULL); |
| 509 | |
| 510 | va_start(args, frm); |
| 511 | |
| 512 | len = vsnprintf((char*) Buffer, 2047, frm, args); |
| 513 | if (len < 0) { |
| 514 | va_end(args); |
| 515 | return FALSE; // Truncated, which is a fatal error for us |
| 516 | } |
| 517 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 518 | // setlocale may be active, no commas are needed in PS generator |
| 519 | // and PS generator is our only client |
| 520 | for (ptr = Buffer; *ptr; ptr++) |
| 521 | { |
| 522 | if (*ptr == ',') *ptr = '.'; |
| 523 | } |
| 524 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 525 | rc = io ->Write(io, (cmsUInt32Number) len, Buffer); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 526 | |
| 527 | va_end(args); |
| 528 | |
| 529 | return rc; |
| 530 | } |
| 531 | |
| 532 | |
| 533 | // Plugin memory management ------------------------------------------------------------------------------------------------- |
| 534 | |
| 535 | // Specialized malloc for plug-ins, that is freed upon exit. |
| 536 | void* _cmsPluginMalloc(cmsContext ContextID, cmsUInt32Number size) |
| 537 | { |
| 538 | struct _cmsContext_struct* ctx = _cmsGetContext(ContextID); |
| 539 | |
| 540 | if (ctx ->MemPool == NULL) { |
| 541 | |
| 542 | if (ContextID == NULL) { |
| 543 | |
| 544 | ctx->MemPool = _cmsCreateSubAlloc(0, 2*1024); |
| 545 | if (ctx->MemPool == NULL) return NULL; |
| 546 | } |
| 547 | else { |
| 548 | cmsSignalError(ContextID, cmsERROR_CORRUPTION_DETECTED, "NULL memory pool on context"); |
| 549 | return NULL; |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | return _cmsSubAlloc(ctx->MemPool, size); |
| 554 | } |
| 555 | |
| 556 | |
| 557 | // Main plug-in dispatcher |
| 558 | cmsBool CMSEXPORT cmsPlugin(void* Plug_in) |
| 559 | { |
| 560 | return cmsPluginTHR(NULL, Plug_in); |
| 561 | } |
| 562 | |
| 563 | cmsBool CMSEXPORT cmsPluginTHR(cmsContext id, void* Plug_in) |
| 564 | { |
| 565 | cmsPluginBase* Plugin; |
| 566 | |
| 567 | for (Plugin = (cmsPluginBase*) Plug_in; |
| 568 | Plugin != NULL; |
| 569 | Plugin = Plugin -> Next) { |
| 570 | |
| 571 | if (Plugin -> Magic != cmsPluginMagicNumber) { |
| 572 | cmsSignalError(id, cmsERROR_UNKNOWN_EXTENSION, "Unrecognized plugin"); |
| 573 | return FALSE; |
| 574 | } |
| 575 | |
| 576 | if (Plugin ->ExpectedVersion > LCMS_VERSION) { |
| 577 | cmsSignalError(id, cmsERROR_UNKNOWN_EXTENSION, "plugin needs Little CMS %d, current version is %d", |
| 578 | Plugin ->ExpectedVersion, LCMS_VERSION); |
| 579 | return FALSE; |
| 580 | } |
| 581 | |
| 582 | switch (Plugin -> Type) { |
| 583 | |
| 584 | case cmsPluginMemHandlerSig: |
| 585 | if (!_cmsRegisterMemHandlerPlugin(id, Plugin)) return FALSE; |
| 586 | break; |
| 587 | |
| 588 | case cmsPluginInterpolationSig: |
| 589 | if (!_cmsRegisterInterpPlugin(id, Plugin)) return FALSE; |
| 590 | break; |
| 591 | |
| 592 | case cmsPluginTagTypeSig: |
| 593 | if (!_cmsRegisterTagTypePlugin(id, Plugin)) return FALSE; |
| 594 | break; |
| 595 | |
| 596 | case cmsPluginTagSig: |
| 597 | if (!_cmsRegisterTagPlugin(id, Plugin)) return FALSE; |
| 598 | break; |
| 599 | |
| 600 | case cmsPluginFormattersSig: |
| 601 | if (!_cmsRegisterFormattersPlugin(id, Plugin)) return FALSE; |
| 602 | break; |
| 603 | |
| 604 | case cmsPluginRenderingIntentSig: |
| 605 | if (!_cmsRegisterRenderingIntentPlugin(id, Plugin)) return FALSE; |
| 606 | break; |
| 607 | |
| 608 | case cmsPluginParametricCurveSig: |
| 609 | if (!_cmsRegisterParametricCurvesPlugin(id, Plugin)) return FALSE; |
| 610 | break; |
| 611 | |
| 612 | case cmsPluginMultiProcessElementSig: |
| 613 | if (!_cmsRegisterMultiProcessElementPlugin(id, Plugin)) return FALSE; |
| 614 | break; |
| 615 | |
| 616 | case cmsPluginOptimizationSig: |
| 617 | if (!_cmsRegisterOptimizationPlugin(id, Plugin)) return FALSE; |
| 618 | break; |
| 619 | |
| 620 | case cmsPluginTransformSig: |
| 621 | if (!_cmsRegisterTransformPlugin(id, Plugin)) return FALSE; |
| 622 | break; |
| 623 | |
| 624 | case cmsPluginMutexSig: |
| 625 | if (!_cmsRegisterMutexPlugin(id, Plugin)) return FALSE; |
| 626 | break; |
| 627 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 628 | case cmsPluginParalellizationSig: |
| 629 | if (!_cmsRegisterParallelizationPlugin(id, Plugin)) return FALSE; |
| 630 | break; |
| 631 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 632 | default: |
| 633 | cmsSignalError(id, cmsERROR_UNKNOWN_EXTENSION, "Unrecognized plugin type '%X'", Plugin -> Type); |
| 634 | return FALSE; |
| 635 | } |
| 636 | } |
| 637 | |
| 638 | // Keep a reference to the plug-in |
| 639 | return TRUE; |
| 640 | } |
| 641 | |
| 642 | |
| 643 | // Revert all plug-ins to default |
| 644 | void CMSEXPORT cmsUnregisterPlugins(void) |
| 645 | { |
| 646 | cmsUnregisterPluginsTHR(NULL); |
| 647 | } |
| 648 | |
| 649 | |
| 650 | // The Global storage for system context. This is the one and only global variable |
| 651 | // pointers structure. All global vars are referenced here. |
| 652 | static struct _cmsContext_struct globalContext = { |
| 653 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 654 | NULL, // Not in the linked list |
| 655 | NULL, // No suballocator |
| 656 | { |
| 657 | NULL, // UserPtr, |
| 658 | &_cmsLogErrorChunk, // Logger, |
| 659 | &_cmsAlarmCodesChunk, // AlarmCodes, |
| 660 | &_cmsAdaptationStateChunk, // AdaptationState, |
| 661 | &_cmsMemPluginChunk, // MemPlugin, |
| 662 | &_cmsInterpPluginChunk, // InterpPlugin, |
| 663 | &_cmsCurvesPluginChunk, // CurvesPlugin, |
| 664 | &_cmsFormattersPluginChunk, // FormattersPlugin, |
| 665 | &_cmsTagTypePluginChunk, // TagTypePlugin, |
| 666 | &_cmsTagPluginChunk, // TagPlugin, |
| 667 | &_cmsIntentsPluginChunk, // IntentPlugin, |
| 668 | &_cmsMPETypePluginChunk, // MPEPlugin, |
| 669 | &_cmsOptimizationPluginChunk, // OptimizationPlugin, |
| 670 | &_cmsTransformPluginChunk, // TransformPlugin, |
| 671 | &_cmsMutexPluginChunk, // MutexPlugin, |
| 672 | &_cmsParallelizationPluginChunk // ParallelizationPlugin |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 673 | }, |
| 674 | |
| 675 | { NULL, NULL, NULL, NULL, NULL, NULL } // The default memory allocator is not used for context 0 |
| 676 | }; |
| 677 | |
| 678 | |
| 679 | // The context pool (linked list head) |
| 680 | static _cmsMutex _cmsContextPoolHeadMutex = CMS_MUTEX_INITIALIZER; |
| 681 | static struct _cmsContext_struct* _cmsContextPoolHead = NULL; |
| 682 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 683 | |
| 684 | // Make sure context is initialized (needed on windows) |
| 685 | static |
| 686 | cmsBool InitContextMutex(void) |
| 687 | { |
| 688 | // See the comments regarding locking in lcms2_internal.h |
| 689 | // for an explanation of why we need the following code. |
| 690 | #ifndef CMS_NO_PTHREADS |
| 691 | #ifdef CMS_IS_WINDOWS_ |
| 692 | #ifndef CMS_RELY_ON_WINDOWS_STATIC_MUTEX_INIT |
| 693 | |
| 694 | static cmsBool already_initialized = FALSE; |
| 695 | |
| 696 | if (!already_initialized) |
| 697 | { |
| 698 | static HANDLE _cmsWindowsInitMutex = NULL; |
| 699 | static volatile HANDLE* mutex = &_cmsWindowsInitMutex; |
| 700 | |
| 701 | if (*mutex == NULL) |
| 702 | { |
| 703 | HANDLE p = CreateMutex(NULL, FALSE, NULL); |
| 704 | if (p && InterlockedCompareExchangePointer((void**)mutex, (void*)p, NULL) != NULL) |
| 705 | CloseHandle(p); |
| 706 | } |
| 707 | if (*mutex == NULL || WaitForSingleObject(*mutex, INFINITE) == WAIT_FAILED) |
| 708 | { |
| 709 | cmsSignalError(0, cmsERROR_INTERNAL, "Mutex lock failed"); |
| 710 | return FALSE; |
| 711 | } |
| 712 | if (((void**)&_cmsContextPoolHeadMutex)[0] == NULL) |
| 713 | InitializeCriticalSection(&_cmsContextPoolHeadMutex); |
| 714 | if (*mutex == NULL || !ReleaseMutex(*mutex)) |
| 715 | { |
| 716 | cmsSignalError(0, cmsERROR_INTERNAL, "Mutex unlock failed"); |
| 717 | return FALSE; |
| 718 | } |
| 719 | already_initialized = TRUE; |
| 720 | } |
| 721 | #endif |
| 722 | #endif |
| 723 | #endif |
| 724 | |
| 725 | return TRUE; |
| 726 | } |
| 727 | |
| 728 | |
| 729 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 730 | // Internal, get associated pointer, with guessing. Never returns NULL. |
| 731 | struct _cmsContext_struct* _cmsGetContext(cmsContext ContextID) |
| 732 | { |
| 733 | struct _cmsContext_struct* id = (struct _cmsContext_struct*) ContextID; |
| 734 | struct _cmsContext_struct* ctx; |
| 735 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 736 | // On 0, use global settings |
| 737 | if (id == NULL) |
| 738 | return &globalContext; |
| 739 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 740 | InitContextMutex(); |
| 741 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 742 | // Search |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 743 | _cmsEnterCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 744 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 745 | for (ctx = _cmsContextPoolHead; |
| 746 | ctx != NULL; |
| 747 | ctx = ctx ->Next) { |
| 748 | |
| 749 | // Found it? |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 750 | if (id == ctx) |
| 751 | { |
| 752 | _cmsLeaveCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 753 | return ctx; // New-style context |
| 754 | } |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 755 | } |
| 756 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 757 | _cmsLeaveCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 758 | return &globalContext; |
| 759 | } |
| 760 | |
| 761 | |
| 762 | // Internal: get the memory area associanted with each context client |
| 763 | // Returns the block assigned to the specific zone. Never return NULL. |
| 764 | void* _cmsContextGetClientChunk(cmsContext ContextID, _cmsMemoryClient mc) |
| 765 | { |
| 766 | struct _cmsContext_struct* ctx; |
| 767 | void *ptr; |
| 768 | |
| 769 | if ((int) mc < 0 || mc >= MemoryClientMax) { |
| 770 | |
| 771 | cmsSignalError(ContextID, cmsERROR_INTERNAL, "Bad context client -- possible corruption"); |
| 772 | |
| 773 | // This is catastrophic. Should never reach here |
| 774 | _cmsAssert(0); |
| 775 | |
| 776 | // Reverts to global context |
| 777 | return globalContext.chunks[UserPtr]; |
| 778 | } |
| 779 | |
| 780 | ctx = _cmsGetContext(ContextID); |
| 781 | ptr = ctx ->chunks[mc]; |
| 782 | |
| 783 | if (ptr != NULL) |
| 784 | return ptr; |
| 785 | |
| 786 | // A null ptr means no special settings for that context, and this |
| 787 | // reverts to Context0 globals |
| 788 | return globalContext.chunks[mc]; |
| 789 | } |
| 790 | |
| 791 | |
| 792 | // This function returns the given context its default pristine state, |
| 793 | // as no plug-ins were declared. There is no way to unregister a single |
| 794 | // plug-in, as a single call to cmsPluginTHR() function may register |
| 795 | // many different plug-ins simultaneously, then there is no way to |
| 796 | // identify which plug-in to unregister. |
| 797 | void CMSEXPORT cmsUnregisterPluginsTHR(cmsContext ContextID) |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 798 | { |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 799 | _cmsRegisterMemHandlerPlugin(ContextID, NULL); |
| 800 | _cmsRegisterInterpPlugin(ContextID, NULL); |
| 801 | _cmsRegisterTagTypePlugin(ContextID, NULL); |
| 802 | _cmsRegisterTagPlugin(ContextID, NULL); |
| 803 | _cmsRegisterFormattersPlugin(ContextID, NULL); |
| 804 | _cmsRegisterRenderingIntentPlugin(ContextID, NULL); |
| 805 | _cmsRegisterParametricCurvesPlugin(ContextID, NULL); |
| 806 | _cmsRegisterMultiProcessElementPlugin(ContextID, NULL); |
| 807 | _cmsRegisterOptimizationPlugin(ContextID, NULL); |
| 808 | _cmsRegisterTransformPlugin(ContextID, NULL); |
| 809 | _cmsRegisterMutexPlugin(ContextID, NULL); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 810 | _cmsRegisterParallelizationPlugin(ContextID, NULL); |
| 811 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 812 | } |
| 813 | |
| 814 | |
| 815 | // Returns the memory manager plug-in, if any, from the Plug-in bundle |
| 816 | static |
| 817 | cmsPluginMemHandler* _cmsFindMemoryPlugin(void* PluginBundle) |
| 818 | { |
| 819 | cmsPluginBase* Plugin; |
| 820 | |
| 821 | for (Plugin = (cmsPluginBase*) PluginBundle; |
| 822 | Plugin != NULL; |
| 823 | Plugin = Plugin -> Next) { |
| 824 | |
| 825 | if (Plugin -> Magic == cmsPluginMagicNumber && |
| 826 | Plugin -> ExpectedVersion <= LCMS_VERSION && |
| 827 | Plugin -> Type == cmsPluginMemHandlerSig) { |
| 828 | |
| 829 | // Found! |
| 830 | return (cmsPluginMemHandler*) Plugin; |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | // Nope, revert to defaults |
| 835 | return NULL; |
| 836 | } |
| 837 | |
| 838 | |
| 839 | // Creates a new context with optional associated plug-ins. Caller may also specify an optional pointer to user-defined |
| 840 | // data that will be forwarded to plug-ins and logger. |
| 841 | cmsContext CMSEXPORT cmsCreateContext(void* Plugin, void* UserData) |
| 842 | { |
| 843 | struct _cmsContext_struct* ctx; |
| 844 | struct _cmsContext_struct fakeContext; |
| 845 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 846 | if (!InitContextMutex()) return NULL; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 847 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 848 | _cmsInstallAllocFunctions(_cmsFindMemoryPlugin(Plugin), &fakeContext.DefaultMemoryManager); |
| 849 | |
| 850 | fakeContext.chunks[UserPtr] = UserData; |
| 851 | fakeContext.chunks[MemPlugin] = &fakeContext.DefaultMemoryManager; |
| 852 | |
| 853 | // Create the context structure. |
| 854 | ctx = (struct _cmsContext_struct*) _cmsMalloc(&fakeContext, sizeof(struct _cmsContext_struct)); |
| 855 | if (ctx == NULL) |
| 856 | return NULL; // Something very wrong happened! |
| 857 | |
| 858 | // Init the structure and the memory manager |
| 859 | memset(ctx, 0, sizeof(struct _cmsContext_struct)); |
| 860 | |
| 861 | // Keep memory manager |
| 862 | memcpy(&ctx->DefaultMemoryManager, &fakeContext.DefaultMemoryManager, sizeof(_cmsMemPluginChunk)); |
| 863 | |
| 864 | // Maintain the linked list (with proper locking) |
| 865 | _cmsEnterCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 866 | ctx ->Next = _cmsContextPoolHead; |
| 867 | _cmsContextPoolHead = ctx; |
| 868 | _cmsLeaveCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 869 | |
| 870 | ctx ->chunks[UserPtr] = UserData; |
| 871 | ctx ->chunks[MemPlugin] = &ctx->DefaultMemoryManager; |
| 872 | |
| 873 | // Now we can allocate the pool by using default memory manager |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 874 | ctx ->MemPool = _cmsCreateSubAlloc(ctx, 22 * sizeof(void*)); // default size about 22 pointers |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 875 | if (ctx ->MemPool == NULL) { |
| 876 | |
| 877 | cmsDeleteContext(ctx); |
| 878 | return NULL; |
| 879 | } |
| 880 | |
| 881 | _cmsAllocLogErrorChunk(ctx, NULL); |
| 882 | _cmsAllocAlarmCodesChunk(ctx, NULL); |
| 883 | _cmsAllocAdaptationStateChunk(ctx, NULL); |
| 884 | _cmsAllocMemPluginChunk(ctx, NULL); |
| 885 | _cmsAllocInterpPluginChunk(ctx, NULL); |
| 886 | _cmsAllocCurvesPluginChunk(ctx, NULL); |
| 887 | _cmsAllocFormattersPluginChunk(ctx, NULL); |
| 888 | _cmsAllocTagTypePluginChunk(ctx, NULL); |
| 889 | _cmsAllocMPETypePluginChunk(ctx, NULL); |
| 890 | _cmsAllocTagPluginChunk(ctx, NULL); |
| 891 | _cmsAllocIntentsPluginChunk(ctx, NULL); |
| 892 | _cmsAllocOptimizationPluginChunk(ctx, NULL); |
| 893 | _cmsAllocTransformPluginChunk(ctx, NULL); |
| 894 | _cmsAllocMutexPluginChunk(ctx, NULL); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 895 | _cmsAllocParallelizationPluginChunk(ctx, NULL); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 896 | |
| 897 | // Setup the plug-ins |
| 898 | if (!cmsPluginTHR(ctx, Plugin)) { |
| 899 | |
| 900 | cmsDeleteContext(ctx); |
| 901 | return NULL; |
| 902 | } |
| 903 | |
| 904 | return (cmsContext) ctx; |
| 905 | } |
| 906 | |
| 907 | // Duplicates a context with all associated plug-ins. |
| 908 | // Caller may specify an optional pointer to user-defined |
| 909 | // data that will be forwarded to plug-ins and logger. |
| 910 | cmsContext CMSEXPORT cmsDupContext(cmsContext ContextID, void* NewUserData) |
| 911 | { |
| 912 | int i; |
| 913 | struct _cmsContext_struct* ctx; |
| 914 | const struct _cmsContext_struct* src = _cmsGetContext(ContextID); |
| 915 | |
| 916 | void* userData = (NewUserData != NULL) ? NewUserData : src -> chunks[UserPtr]; |
| 917 | |
| 918 | |
| 919 | ctx = (struct _cmsContext_struct*) _cmsMalloc(ContextID, sizeof(struct _cmsContext_struct)); |
| 920 | if (ctx == NULL) |
| 921 | return NULL; // Something very wrong happened |
| 922 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 923 | if (!InitContextMutex()) return NULL; |
| 924 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 925 | // Setup default memory allocators |
| 926 | memcpy(&ctx->DefaultMemoryManager, &src->DefaultMemoryManager, sizeof(ctx->DefaultMemoryManager)); |
| 927 | |
| 928 | // Maintain the linked list |
| 929 | _cmsEnterCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 930 | ctx ->Next = _cmsContextPoolHead; |
| 931 | _cmsContextPoolHead = ctx; |
| 932 | _cmsLeaveCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 933 | |
| 934 | ctx ->chunks[UserPtr] = userData; |
| 935 | ctx ->chunks[MemPlugin] = &ctx->DefaultMemoryManager; |
| 936 | |
| 937 | ctx ->MemPool = _cmsCreateSubAlloc(ctx, 22 * sizeof(void*)); |
| 938 | if (ctx ->MemPool == NULL) { |
| 939 | |
| 940 | cmsDeleteContext(ctx); |
| 941 | return NULL; |
| 942 | } |
| 943 | |
| 944 | // Allocate all required chunks. |
| 945 | _cmsAllocLogErrorChunk(ctx, src); |
| 946 | _cmsAllocAlarmCodesChunk(ctx, src); |
| 947 | _cmsAllocAdaptationStateChunk(ctx, src); |
| 948 | _cmsAllocMemPluginChunk(ctx, src); |
| 949 | _cmsAllocInterpPluginChunk(ctx, src); |
| 950 | _cmsAllocCurvesPluginChunk(ctx, src); |
| 951 | _cmsAllocFormattersPluginChunk(ctx, src); |
| 952 | _cmsAllocTagTypePluginChunk(ctx, src); |
| 953 | _cmsAllocMPETypePluginChunk(ctx, src); |
| 954 | _cmsAllocTagPluginChunk(ctx, src); |
| 955 | _cmsAllocIntentsPluginChunk(ctx, src); |
| 956 | _cmsAllocOptimizationPluginChunk(ctx, src); |
| 957 | _cmsAllocTransformPluginChunk(ctx, src); |
| 958 | _cmsAllocMutexPluginChunk(ctx, src); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 959 | _cmsAllocParallelizationPluginChunk(ctx, src); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 960 | |
| 961 | // Make sure no one failed |
| 962 | for (i=Logger; i < MemoryClientMax; i++) { |
| 963 | |
| 964 | if (src ->chunks[i] == NULL) { |
| 965 | cmsDeleteContext((cmsContext) ctx); |
| 966 | return NULL; |
| 967 | } |
| 968 | } |
| 969 | |
| 970 | return (cmsContext) ctx; |
| 971 | } |
| 972 | |
| 973 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 974 | // Frees any resources associated with the given context, |
| 975 | // and destroys the context placeholder. |
| 976 | // The ContextID can no longer be used in any THR operation. |
| 977 | void CMSEXPORT cmsDeleteContext(cmsContext ContextID) |
| 978 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 979 | if (ContextID == NULL) { |
| 980 | |
| 981 | cmsUnregisterPlugins(); |
| 982 | if (globalContext.MemPool != NULL) |
| 983 | _cmsSubAllocDestroy(globalContext.MemPool); |
| 984 | globalContext.MemPool = NULL; |
| 985 | } |
| 986 | else { |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 987 | |
| 988 | struct _cmsContext_struct* ctx = (struct _cmsContext_struct*) ContextID; |
| 989 | struct _cmsContext_struct fakeContext; |
| 990 | struct _cmsContext_struct* prev; |
| 991 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 992 | |
| 993 | InitContextMutex(); |
| 994 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 995 | memcpy(&fakeContext.DefaultMemoryManager, &ctx->DefaultMemoryManager, sizeof(ctx->DefaultMemoryManager)); |
| 996 | |
| 997 | fakeContext.chunks[UserPtr] = ctx ->chunks[UserPtr]; |
| 998 | fakeContext.chunks[MemPlugin] = &fakeContext.DefaultMemoryManager; |
| 999 | |
| 1000 | // Get rid of plugins |
| 1001 | cmsUnregisterPluginsTHR(ContextID); |
| 1002 | |
| 1003 | // Since all memory is allocated in the private pool, all what we need to do is destroy the pool |
| 1004 | if (ctx -> MemPool != NULL) |
| 1005 | _cmsSubAllocDestroy(ctx ->MemPool); |
| 1006 | ctx -> MemPool = NULL; |
| 1007 | |
| 1008 | // Maintain list |
| 1009 | _cmsEnterCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 1010 | if (_cmsContextPoolHead == ctx) { |
| 1011 | |
| 1012 | _cmsContextPoolHead = ctx->Next; |
| 1013 | } |
| 1014 | else { |
| 1015 | |
| 1016 | // Search for previous |
| 1017 | for (prev = _cmsContextPoolHead; |
| 1018 | prev != NULL; |
| 1019 | prev = prev ->Next) |
| 1020 | { |
| 1021 | if (prev -> Next == ctx) { |
| 1022 | prev -> Next = ctx ->Next; |
| 1023 | break; |
| 1024 | } |
| 1025 | } |
| 1026 | } |
| 1027 | _cmsLeaveCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 1028 | |
| 1029 | // free the memory block itself |
| 1030 | _cmsFree(&fakeContext, ctx); |
| 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | // Returns the user data associated to the given ContextID, or NULL if no user data was attached on context creation |
| 1035 | void* CMSEXPORT cmsGetContextUserData(cmsContext ContextID) |
| 1036 | { |
| 1037 | return _cmsContextGetClientChunk(ContextID, UserPtr); |
| 1038 | } |
| 1039 | |
| 1040 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1041 | // Use context mutex to provide thread-safe time |
| 1042 | cmsBool _cmsGetTime(struct tm* ptr_time) |
| 1043 | { |
| 1044 | struct tm* t; |
| 1045 | #if defined(HAVE_GMTIME_R) || defined(HAVE_GMTIME_S) |
| 1046 | struct tm tm; |
| 1047 | #endif |
| 1048 | |
| 1049 | time_t now = time(NULL); |
| 1050 | |
| 1051 | #ifdef HAVE_GMTIME_R |
| 1052 | t = gmtime_r(&now, &tm); |
| 1053 | #elif defined(HAVE_GMTIME_S) |
| 1054 | t = gmtime_s(&tm, &now) == 0 ? &tm : NULL; |
| 1055 | #else |
| 1056 | if (!InitContextMutex()) return FALSE; |
| 1057 | |
| 1058 | _cmsEnterCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 1059 | t = gmtime(&now); |
| 1060 | _cmsLeaveCriticalSectionPrimitive(&_cmsContextPoolHeadMutex); |
| 1061 | #endif |
| 1062 | |
| 1063 | if (t == NULL) |
| 1064 | return FALSE; |
| 1065 | else { |
| 1066 | *ptr_time = *t; |
| 1067 | return TRUE; |
| 1068 | } |
| 1069 | } |