cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % M M AAA GGGG IIIII CCCC K K % |
| 7 | % MM MM A A G I C K K % |
| 8 | % M M M AAAAA G GGG I C KKK % |
| 9 | % M M A A G G I C K K % |
| 10 | % M M A A GGGG IIIII CCCC K K % |
| 11 | % % |
| 12 | % % |
| 13 | % Methods to Read or List ImageMagick Image formats % |
| 14 | % % |
| 15 | % Software Design % |
| 16 | % Bob Friesenhahn % |
| 17 | % John Cristy % |
| 18 | % November 1998 % |
| 19 | % % |
| 20 | % % |
| 21 | % Copyright 1999-2009 ImageMagick Studio LLC, a non-profit organization % |
| 22 | % dedicated to making software imaging solutions freely available. % |
| 23 | % % |
| 24 | % You may not use this file except in compliance with the License. You may % |
| 25 | % obtain a copy of the License at % |
| 26 | % % |
| 27 | % http://www.imagemagick.org/script/license.php % |
| 28 | % % |
| 29 | % Unless required by applicable law or agreed to in writing, software % |
| 30 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 31 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 32 | % See the License for the specific language governing permissions and % |
| 33 | % limitations under the License. % |
| 34 | % % |
| 35 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 36 | % |
| 37 | % |
| 38 | */ |
| 39 | |
| 40 | /* |
| 41 | Include declarations. |
| 42 | */ |
| 43 | #include "magick/studio.h" |
| 44 | #include "magick/blob.h" |
| 45 | #include "magick/cache.h" |
| 46 | #include "magick/coder.h" |
| 47 | #include "magick/client.h" |
| 48 | #include "magick/coder.h" |
| 49 | #include "magick/configure.h" |
| 50 | #include "magick/constitute.h" |
| 51 | #include "magick/delegate.h" |
| 52 | #include "magick/draw.h" |
| 53 | #include "magick/exception.h" |
| 54 | #include "magick/exception-private.h" |
| 55 | #include "magick/locale_.h" |
| 56 | #include "magick/log.h" |
| 57 | #include "magick/magic.h" |
| 58 | #include "magick/magick.h" |
| 59 | #include "magick/memory_.h" |
| 60 | #include "magick/mime.h" |
| 61 | #include "magick/module.h" |
| 62 | #if defined(__WINDOWS__) |
| 63 | # include "magick/nt-feature.h" |
| 64 | #endif |
| 65 | #include "magick/random_.h" |
| 66 | #include "magick/registry.h" |
| 67 | #include "magick/resource_.h" |
| 68 | #include "magick/policy.h" |
| 69 | #include "magick/semaphore.h" |
| 70 | #include "magick/signature-private.h" |
| 71 | #include "magick/splay-tree.h" |
| 72 | #include "magick/string_.h" |
| 73 | #include "magick/thread_.h" |
| 74 | #include "magick/thread-private.h" |
| 75 | #include "magick/token.h" |
| 76 | #include "magick/utility.h" |
| 77 | #include "magick/xwindow-private.h" |
| 78 | |
| 79 | /* |
| 80 | Define declarations. |
| 81 | */ |
| 82 | #if !defined(MAGICKCORE_RETSIGTYPE) |
| 83 | # define MAGICKCORE_RETSIGTYPE void |
| 84 | #endif |
| 85 | #if !defined(SIG_DFL) |
| 86 | # define SIG_DFL ((SignalHandler *) 0) |
| 87 | #endif |
| 88 | #if !defined(SIG_ERR) |
| 89 | # define SIG_ERR ((SignalHandler *) -1) |
| 90 | #endif |
| 91 | #if !defined(SIGMAX) |
| 92 | #define SIGMAX 64 |
| 93 | #endif |
| 94 | |
| 95 | /* |
| 96 | Typedef declarations. |
| 97 | */ |
| 98 | typedef MAGICKCORE_RETSIGTYPE |
| 99 | SignalHandler(int); |
| 100 | |
| 101 | /* |
| 102 | Global declarations. |
| 103 | */ |
| 104 | static SemaphoreInfo |
| 105 | *magick_semaphore = (SemaphoreInfo *) NULL; |
| 106 | |
| 107 | static SignalHandler |
| 108 | *signal_handlers[SIGMAX] = { (SignalHandler *) NULL }; |
| 109 | |
| 110 | static SplayTreeInfo |
| 111 | *magick_list = (SplayTreeInfo *) NULL; |
| 112 | |
| 113 | static volatile MagickBooleanType |
| 114 | instantiate_magick = MagickFalse; /* double-checked locking pattern */ |
| 115 | |
| 116 | /* |
| 117 | Forward declarations. |
| 118 | */ |
| 119 | static MagickBooleanType |
| 120 | InitializeMagickList(ExceptionInfo *); |
| 121 | |
| 122 | /* |
| 123 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 124 | % % |
| 125 | % % |
| 126 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 127 | + G e t I m a g e D e c o d e r % |
| 128 | % % |
| 129 | % % |
| 130 | % % |
| 131 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 132 | % |
| 133 | % GetImageDecoder() returns the image decoder. |
| 134 | % |
| 135 | % The format of the GetImageDecoder method is: |
| 136 | % |
| 137 | % DecodeImageHandler *GetImageDecoder(const MagickInfo *magick_info) |
| 138 | % |
| 139 | % A description of each parameter follows: |
| 140 | % |
| 141 | % o magick_info: The magick info. |
| 142 | % |
| 143 | */ |
| 144 | MagickExport DecodeImageHandler *GetImageDecoder(const MagickInfo *magick_info) |
| 145 | { |
| 146 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 147 | assert(magick_info != (MagickInfo *) NULL); |
| 148 | assert(magick_info->signature == MagickSignature); |
| 149 | return(magick_info->decoder); |
| 150 | } |
| 151 | |
| 152 | /* |
| 153 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 154 | % % |
| 155 | % % |
| 156 | % % |
| 157 | + G e t I m a g e E n c o d e r % |
| 158 | % % |
| 159 | % % |
| 160 | % % |
| 161 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 162 | % |
| 163 | % GetImageEncoder() returns the image encoder. |
| 164 | % |
| 165 | % The format of the GetImageEncoder method is: |
| 166 | % |
| 167 | % EncodeImageHandler *GetImageEncoder(const MagickInfo *magick_info) |
| 168 | % |
| 169 | % A description of each parameter follows: |
| 170 | % |
| 171 | % o magick_info: The magick info. |
| 172 | % |
| 173 | */ |
| 174 | MagickExport EncodeImageHandler *GetImageEncoder(const MagickInfo *magick_info) |
| 175 | { |
| 176 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 177 | assert(magick_info != (MagickInfo *) NULL); |
| 178 | assert(magick_info->signature == MagickSignature); |
| 179 | return(magick_info->encoder); |
| 180 | } |
| 181 | |
| 182 | /* |
| 183 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 184 | % % |
| 185 | % % |
| 186 | % % |
| 187 | + G e t I m a g e M a g i c k % |
| 188 | % % |
| 189 | % % |
| 190 | % % |
| 191 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 192 | % |
| 193 | % GetImageMagick() searches for an image format that matches the specified |
| 194 | % magick string. If one is found, MagickTrue is returned otherwise |
| 195 | % MagickFalse. |
| 196 | % |
| 197 | % The format of the GetImageMagick method is: |
| 198 | % |
| 199 | % MagickBooleanType GetImageMagick(const unsigned char *magick, |
| 200 | % const size_t length,char *format) |
| 201 | % |
| 202 | % A description of each parameter follows: |
| 203 | % |
| 204 | % o magick: the image format we are searching for. |
| 205 | % |
| 206 | % o length: the length of the binary string. |
| 207 | % |
| 208 | % o format: the image format as determined by the magick bytes. |
| 209 | % |
| 210 | */ |
| 211 | MagickExport MagickBooleanType GetImageMagick(const unsigned char *magick, |
| 212 | const size_t length,char *format) |
| 213 | { |
| 214 | ExceptionInfo |
| 215 | *exception; |
| 216 | |
| 217 | MagickBooleanType |
| 218 | status; |
| 219 | |
| 220 | register const MagickInfo |
| 221 | *p; |
| 222 | |
| 223 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 224 | assert(magick != (const unsigned char *) NULL); |
| 225 | exception=AcquireExceptionInfo(); |
| 226 | p=GetMagickInfo("*",exception); |
| 227 | exception=DestroyExceptionInfo(exception); |
| 228 | if (p == (const MagickInfo *) NULL) |
| 229 | return(MagickFalse); |
| 230 | status=MagickFalse; |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 231 | LockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 232 | ResetSplayTreeIterator(magick_list); |
| 233 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 234 | while (p != (const MagickInfo *) NULL) |
| 235 | { |
| 236 | if ((p->magick != (IsImageFormatHandler *) NULL) && |
| 237 | (p->magick(magick,length) != 0)) |
| 238 | { |
| 239 | status=MagickTrue; |
| 240 | (void) CopyMagickString(format,p->name,MaxTextExtent); |
| 241 | break; |
| 242 | } |
| 243 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 244 | } |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 245 | UnlockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 246 | return(status); |
| 247 | } |
| 248 | |
| 249 | /* |
| 250 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 251 | % % |
| 252 | % % |
| 253 | % % |
| 254 | + G e t M a g i c k A d j o i n % |
| 255 | % % |
| 256 | % % |
| 257 | % % |
| 258 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 259 | % |
| 260 | % GetMagickAdjoin() returns MagickTrue if the magick adjoin is MagickTrue. |
| 261 | % |
| 262 | % The format of the GetMagickAdjoin method is: |
| 263 | % |
| 264 | % MagickBooleanType GetMagickAdjoin(const MagickInfo *magick_info) |
| 265 | % |
| 266 | % A description of each parameter follows: |
| 267 | % |
| 268 | % o magick_info: The magick info. |
| 269 | % |
| 270 | */ |
| 271 | MagickExport MagickBooleanType GetMagickAdjoin(const MagickInfo *magick_info) |
| 272 | { |
| 273 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 274 | assert(magick_info != (MagickInfo *) NULL); |
| 275 | assert(magick_info->signature == MagickSignature); |
| 276 | return(magick_info->adjoin); |
| 277 | } |
| 278 | |
| 279 | /* |
| 280 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 281 | % % |
| 282 | % % |
| 283 | % % |
| 284 | + G e t M a g i c k B l o b S u p p o r t % |
| 285 | % % |
| 286 | % % |
| 287 | % % |
| 288 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 289 | % |
| 290 | % GetMagickBlobSupport() returns MagickTrue if the magick supports blobs. |
| 291 | % |
| 292 | % The format of the GetMagickBlobSupport method is: |
| 293 | % |
| 294 | % MagickBooleanType GetMagickBlobSupport(const MagickInfo *magick_info) |
| 295 | % |
| 296 | % A description of each parameter follows: |
| 297 | % |
| 298 | % o magick_info: The magick info. |
| 299 | % |
| 300 | */ |
| 301 | MagickExport MagickBooleanType GetMagickBlobSupport( |
| 302 | const MagickInfo *magick_info) |
| 303 | { |
| 304 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 305 | assert(magick_info != (MagickInfo *) NULL); |
| 306 | assert(magick_info->signature == MagickSignature); |
| 307 | return(magick_info->blob_support); |
| 308 | } |
| 309 | |
| 310 | /* |
| 311 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 312 | % % |
| 313 | % % |
| 314 | % % |
| 315 | + G e t M a g i c k D e s c r i p t i o n % |
| 316 | % % |
| 317 | % % |
| 318 | % % |
| 319 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 320 | % |
| 321 | % GetMagickDescription() returns the magick description. |
| 322 | % |
| 323 | % The format of the GetMagickDescription method is: |
| 324 | % |
| 325 | % const char *GetMagickDescription(const MagickInfo *magick_info) |
| 326 | % |
| 327 | % A description of each parameter follows: |
| 328 | % |
| 329 | % o magick_info: The magick info. |
| 330 | % |
| 331 | */ |
| 332 | MagickExport const char *GetMagickDescription(const MagickInfo *magick_info) |
| 333 | { |
| 334 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 335 | assert(magick_info != (MagickInfo *) NULL); |
| 336 | assert(magick_info->signature == MagickSignature); |
| 337 | return(magick_info->description); |
| 338 | } |
| 339 | |
| 340 | /* |
| 341 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 342 | % % |
| 343 | % % |
| 344 | % % |
| 345 | + G e t M a g i c k E n d i a n S u p p o r t % |
| 346 | % % |
| 347 | % % |
| 348 | % % |
| 349 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 350 | % |
| 351 | % GetMagickEndianSupport() returns the MagickTrue if the coder respects |
| 352 | % endianness other than MSBEndian. |
| 353 | % |
| 354 | % The format of the GetMagickEndianSupport method is: |
| 355 | % |
| 356 | % MagickBooleanType GetMagickEndianSupport(const MagickInfo *magick_info) |
| 357 | % |
| 358 | % A description of each parameter follows: |
| 359 | % |
| 360 | % o magick_info: The magick info. |
| 361 | % |
| 362 | */ |
| 363 | MagickExport MagickBooleanType GetMagickEndianSupport( |
| 364 | const MagickInfo *magick_info) |
| 365 | { |
| 366 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 367 | assert(magick_info != (MagickInfo *) NULL); |
| 368 | assert(magick_info->signature == MagickSignature); |
| 369 | return(magick_info->endian_support); |
| 370 | } |
| 371 | |
| 372 | /* |
| 373 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 374 | % % |
| 375 | % % |
| 376 | % % |
| 377 | + G e t M a g i c k I n f o % |
| 378 | % % |
| 379 | % % |
| 380 | % % |
| 381 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 382 | % |
| 383 | % GetMagickInfo() returns a pointer MagickInfo structure that matches |
| 384 | % the specified name. If name is NULL, the head of the image format list |
| 385 | % is returned. |
| 386 | % |
| 387 | % The format of the GetMagickInfo method is: |
| 388 | % |
| 389 | % const MagickInfo *GetMagickInfo(const char *name,Exception *exception) |
| 390 | % |
| 391 | % A description of each parameter follows: |
| 392 | % |
| 393 | % o name: the image format we are looking for. |
| 394 | % |
| 395 | % o exception: return any errors or warnings in this structure. |
| 396 | % |
| 397 | */ |
| 398 | MagickExport const MagickInfo *GetMagickInfo(const char *name, |
| 399 | ExceptionInfo *exception) |
| 400 | { |
| 401 | register const MagickInfo |
| 402 | *p; |
| 403 | |
| 404 | assert(exception != (ExceptionInfo *) NULL); |
| 405 | if ((magick_list == (SplayTreeInfo *) NULL) || |
| 406 | (instantiate_magick == MagickFalse)) |
| 407 | if (InitializeMagickList(exception) == MagickFalse) |
| 408 | return((const MagickInfo *) NULL); |
| 409 | if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0)) |
| 410 | { |
| 411 | #if defined(MAGICKCORE_MODULES_SUPPORT) |
| 412 | if (LocaleCompare(name,"*") == 0) |
| 413 | (void) OpenModules(exception); |
| 414 | #endif |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 415 | LockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 416 | ResetSplayTreeIterator(magick_list); |
| 417 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 418 | UnlockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 419 | return(p); |
| 420 | } |
| 421 | /* |
| 422 | Find name in list. |
| 423 | */ |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 424 | LockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 425 | ResetSplayTreeIterator(magick_list); |
| 426 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 427 | while (p != (const MagickInfo *) NULL) |
| 428 | { |
| 429 | if (LocaleCompare(p->name,name) == 0) |
| 430 | break; |
| 431 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 432 | } |
| 433 | #if defined(MAGICKCORE_MODULES_SUPPORT) |
| 434 | if (p == (const MagickInfo *) NULL) |
| 435 | { |
| 436 | if (*name != '\0') |
| 437 | (void) OpenModule(name,exception); |
| 438 | ResetSplayTreeIterator(magick_list); |
| 439 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 440 | while (p != (const MagickInfo *) NULL) |
| 441 | { |
| 442 | if (LocaleCompare(p->name,name) == 0) |
| 443 | break; |
| 444 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 445 | } |
| 446 | } |
| 447 | #endif |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 448 | UnlockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 449 | return(p); |
| 450 | } |
| 451 | |
| 452 | /* |
| 453 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 454 | % % |
| 455 | % % |
| 456 | % % |
| 457 | + G e t M a g i c k I n f o L i s t % |
| 458 | % % |
| 459 | % % |
| 460 | % % |
| 461 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 462 | % |
| 463 | % GetMagickInfoList() returns any image formats that match the specified |
| 464 | % pattern. |
| 465 | % |
| 466 | % The format of the GetMagickInfoList function is: |
| 467 | % |
| 468 | % const MagickInfo **GetMagickInfoList(const char *pattern, |
| 469 | % unsigned long *number_formats,ExceptionInfo *exception) |
| 470 | % |
| 471 | % A description of each parameter follows: |
| 472 | % |
| 473 | % o pattern: Specifies a pointer to a text string containing a pattern. |
| 474 | % |
| 475 | % o number_formats: This integer returns the number of formats in the list. |
| 476 | % |
| 477 | % o exception: return any errors or warnings in this structure. |
| 478 | % |
| 479 | */ |
| 480 | |
| 481 | #if defined(__cplusplus) || defined(c_plusplus) |
| 482 | extern "C" { |
| 483 | #endif |
| 484 | |
| 485 | static int MagickInfoCompare(const void *x,const void *y) |
| 486 | { |
| 487 | const MagickInfo |
| 488 | **p, |
| 489 | **q; |
| 490 | |
| 491 | p=(const MagickInfo **) x, |
| 492 | q=(const MagickInfo **) y; |
| 493 | return(LocaleCompare((*p)->name,(*q)->name)); |
| 494 | } |
| 495 | |
| 496 | #if defined(__cplusplus) || defined(c_plusplus) |
| 497 | } |
| 498 | #endif |
| 499 | |
| 500 | MagickExport const MagickInfo **GetMagickInfoList(const char *pattern, |
| 501 | unsigned long *number_formats,ExceptionInfo *exception) |
| 502 | { |
| 503 | const MagickInfo |
| 504 | **formats; |
| 505 | |
| 506 | register const MagickInfo |
| 507 | *p; |
| 508 | |
| 509 | register long |
| 510 | i; |
| 511 | |
| 512 | /* |
| 513 | Allocate magick list. |
| 514 | */ |
| 515 | assert(pattern != (char *) NULL); |
| 516 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern); |
| 517 | assert(number_formats != (unsigned long *) NULL); |
| 518 | *number_formats=0; |
| 519 | p=GetMagickInfo("*",exception); |
| 520 | if (p == (const MagickInfo *) NULL) |
| 521 | return((const MagickInfo **) NULL); |
| 522 | formats=(const MagickInfo **) AcquireQuantumMemory((size_t) |
| 523 | GetNumberOfNodesInSplayTree(magick_list)+1UL,sizeof(*formats)); |
| 524 | if (formats == (const MagickInfo **) NULL) |
| 525 | return((const MagickInfo **) NULL); |
| 526 | /* |
| 527 | Generate magick list. |
| 528 | */ |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 529 | LockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 530 | ResetSplayTreeIterator(magick_list); |
| 531 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 532 | for (i=0; p != (const MagickInfo *) NULL; ) |
| 533 | { |
| 534 | if ((p->stealth == MagickFalse) && |
| 535 | (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse)) |
| 536 | formats[i++]=p; |
| 537 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 538 | } |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 539 | UnlockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 540 | qsort((void *) formats,(size_t) i,sizeof(*formats),MagickInfoCompare); |
| 541 | formats[i]=(MagickInfo *) NULL; |
| 542 | *number_formats=(unsigned long) i; |
| 543 | return(formats); |
| 544 | } |
| 545 | |
| 546 | /* |
| 547 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 548 | % % |
| 549 | % % |
| 550 | % % |
| 551 | + G e t M a g i c k L i s t % |
| 552 | % % |
| 553 | % % |
| 554 | % % |
| 555 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 556 | % |
| 557 | % GetMagickList() returns any image formats that match the specified pattern. |
| 558 | % |
| 559 | % The format of the GetMagickList function is: |
| 560 | % |
| 561 | % char **GetMagickList(const char *pattern,unsigned long *number_formats, |
| 562 | % ExceptionInfo *exception) |
| 563 | % |
| 564 | % A description of each parameter follows: |
| 565 | % |
| 566 | % o pattern: Specifies a pointer to a text string containing a pattern. |
| 567 | % |
| 568 | % o number_formats: This integer returns the number of formats in the list. |
| 569 | % |
| 570 | % o exception: return any errors or warnings in this structure. |
| 571 | % |
| 572 | */ |
| 573 | |
| 574 | #if defined(__cplusplus) || defined(c_plusplus) |
| 575 | extern "C" { |
| 576 | #endif |
| 577 | |
| 578 | static int MagickCompare(const void *x,const void *y) |
| 579 | { |
| 580 | register const char |
| 581 | **p, |
| 582 | **q; |
| 583 | |
| 584 | p=(const char **) x; |
| 585 | q=(const char **) y; |
| 586 | return(LocaleCompare(*p,*q)); |
| 587 | } |
| 588 | |
| 589 | #if defined(__cplusplus) || defined(c_plusplus) |
| 590 | } |
| 591 | #endif |
| 592 | |
| 593 | MagickExport char **GetMagickList(const char *pattern, |
| 594 | unsigned long *number_formats,ExceptionInfo *exception) |
| 595 | { |
| 596 | char |
| 597 | **formats; |
| 598 | |
| 599 | register const MagickInfo |
| 600 | *p; |
| 601 | |
| 602 | register long |
| 603 | i; |
| 604 | |
| 605 | /* |
| 606 | Allocate magick list. |
| 607 | */ |
| 608 | assert(pattern != (char *) NULL); |
| 609 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern); |
| 610 | assert(number_formats != (unsigned long *) NULL); |
| 611 | *number_formats=0; |
| 612 | p=GetMagickInfo("*",exception); |
| 613 | if (p == (const MagickInfo *) NULL) |
| 614 | return((char **) NULL); |
| 615 | formats=(char **) AcquireQuantumMemory((size_t) |
| 616 | GetNumberOfNodesInSplayTree(magick_list)+1UL,sizeof(*formats)); |
| 617 | if (formats == (char **) NULL) |
| 618 | return((char **) NULL); |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 619 | LockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 620 | ResetSplayTreeIterator(magick_list); |
| 621 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 622 | for (i=0; p != (const MagickInfo *) NULL; ) |
| 623 | { |
| 624 | if ((p->stealth == MagickFalse) && |
| 625 | (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse)) |
| 626 | formats[i++]=ConstantString(p->name); |
| 627 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 628 | } |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 629 | UnlockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 630 | qsort((void *) formats,(size_t) i,sizeof(*formats),MagickCompare); |
| 631 | formats[i]=(char *) NULL; |
| 632 | *number_formats=(unsigned long) i; |
| 633 | return(formats); |
| 634 | } |
| 635 | |
| 636 | /* |
| 637 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 638 | % % |
| 639 | % % |
| 640 | % % |
| 641 | + G e t M a g i c k E n d i a n S u p p o r t % |
| 642 | % % |
| 643 | % % |
| 644 | % % |
| 645 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 646 | % |
| 647 | % GetMagickRawSupport() returns the MagickTrue if the coder is a raw format. |
| 648 | % |
| 649 | % The format of the GetMagickRawSupport method is: |
| 650 | % |
| 651 | % MagickBooleanType GetMagickRawSupport(const MagickInfo *magick_info) |
| 652 | % |
| 653 | % A description of each parameter follows: |
| 654 | % |
| 655 | % o magick_info: The magick info. |
| 656 | % |
| 657 | */ |
| 658 | MagickExport MagickBooleanType GetMagickRawSupport( |
| 659 | const MagickInfo *magick_info) |
| 660 | { |
| 661 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 662 | assert(magick_info != (MagickInfo *) NULL); |
| 663 | assert(magick_info->signature == MagickSignature); |
| 664 | return(magick_info->raw); |
| 665 | } |
| 666 | |
| 667 | /* |
| 668 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 669 | % % |
| 670 | % % |
| 671 | % % |
| 672 | + G e t M a g i c k S e e k a b l e S t r e a m % |
| 673 | % % |
| 674 | % % |
| 675 | % % |
| 676 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 677 | % |
| 678 | % GetMagickSeekableStream() returns MagickTrue if the magick supports a |
| 679 | % seekable stream. |
| 680 | % |
| 681 | % The format of the GetMagickSeekableStream method is: |
| 682 | % |
| 683 | % MagickBooleanType GetMagickSeekableStream(const MagickInfo *magick_info) |
| 684 | % |
| 685 | % A description of each parameter follows: |
| 686 | % |
| 687 | % o magick_info: The magick info. |
| 688 | % |
| 689 | */ |
| 690 | MagickExport MagickBooleanType GetMagickSeekableStream( |
| 691 | const MagickInfo *magick_info) |
| 692 | { |
| 693 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 694 | assert(magick_info != (MagickInfo *) NULL); |
| 695 | assert(magick_info->signature == MagickSignature); |
| 696 | return(magick_info->seekable_stream); |
| 697 | } |
| 698 | |
| 699 | /* |
| 700 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 701 | % % |
| 702 | % % |
| 703 | % % |
| 704 | + G e t M a g i c k T h r e a d S u p p o r t % |
| 705 | % % |
| 706 | % % |
| 707 | % % |
| 708 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 709 | % |
| 710 | % GetMagickThreadSupport() returns MagickTrue if the magick supports threads. |
| 711 | % |
| 712 | % The format of the GetMagickThreadSupport method is: |
| 713 | % |
| 714 | % MagickStatusType GetMagickThreadSupport(const MagickInfo *magick_info) |
| 715 | % |
| 716 | % A description of each parameter follows: |
| 717 | % |
| 718 | % o magick_info: The magick info. |
| 719 | % |
| 720 | */ |
| 721 | MagickExport MagickStatusType GetMagickThreadSupport( |
| 722 | const MagickInfo *magick_info) |
| 723 | { |
| 724 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 725 | assert(magick_info != (MagickInfo *) NULL); |
| 726 | assert(magick_info->signature == MagickSignature); |
| 727 | return(magick_info->thread_support); |
| 728 | } |
| 729 | |
| 730 | /* |
| 731 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 732 | % % |
| 733 | % % |
| 734 | % % |
| 735 | + I n i t i a l i z e M a g i c k L i s t % |
| 736 | % % |
| 737 | % % |
| 738 | % % |
| 739 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 740 | % |
| 741 | % InitializeMagickList() initializes the magick list. |
| 742 | % |
| 743 | % The format of the InitializeMagickList() method is: |
| 744 | % |
| 745 | % InitializeMagickList(Exceptioninfo *exception) |
| 746 | % |
| 747 | % A description of each parameter follows. |
| 748 | % |
| 749 | % o exception: return any errors or warnings in this structure. |
| 750 | % |
| 751 | */ |
| 752 | |
| 753 | static void *DestroyMagickNode(void *magick_info) |
| 754 | { |
| 755 | register MagickInfo |
| 756 | *p; |
| 757 | |
| 758 | p=(MagickInfo *) magick_info; |
| 759 | if (p->name != (char *) NULL) |
| 760 | p->name=DestroyString(p->name); |
| 761 | if (p->description != (char *) NULL) |
| 762 | p->description=DestroyString(p->description); |
| 763 | if (p->version != (char *) NULL) |
| 764 | p->version=DestroyString(p->version); |
| 765 | if (p->note != (char *) NULL) |
| 766 | p->note=DestroyString(p->note); |
| 767 | if (p->module != (char *) NULL) |
| 768 | p->module=DestroyString(p->module); |
| 769 | return(RelinquishMagickMemory(p)); |
| 770 | } |
| 771 | |
| 772 | static MagickBooleanType InitializeMagickList(ExceptionInfo *exception) |
| 773 | { |
cristy | f2e1166 | 2009-10-14 01:24:43 +0000 | [diff] [blame] | 774 | (void) exception; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 775 | if ((magick_list == (SplayTreeInfo *) NULL) && |
| 776 | (instantiate_magick == MagickFalse)) |
| 777 | { |
cristy | 4e1dff6 | 2009-10-25 20:36:03 +0000 | [diff] [blame^] | 778 | if (magick_semaphore == (SemaphoreInfo *) NULL) |
| 779 | AcquireSemaphoreInfo(&magick_semaphore); |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 780 | LockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 781 | if ((magick_list == (SplayTreeInfo *) NULL) && |
| 782 | (instantiate_magick == MagickFalse)) |
| 783 | { |
| 784 | MagickBooleanType |
| 785 | status; |
| 786 | |
| 787 | MagickInfo |
| 788 | *magick_info; |
| 789 | |
| 790 | magick_list=NewSplayTree(CompareSplayTreeString, |
| 791 | (void *(*)(void *)) NULL,DestroyMagickNode); |
| 792 | if (magick_list == (SplayTreeInfo *) NULL) |
| 793 | ThrowFatalException(ResourceLimitFatalError, |
| 794 | "MemoryAllocationFailed"); |
| 795 | magick_info=SetMagickInfo("ephemeral"); |
| 796 | magick_info->stealth=MagickTrue; |
| 797 | status=AddValueToSplayTree(magick_list,magick_info->name,magick_info); |
| 798 | if (status == MagickFalse) |
| 799 | ThrowFatalException(ResourceLimitFatalError, |
| 800 | "MemoryAllocationFailed"); |
| 801 | magick_info=SetMagickInfo("clipmask"); |
| 802 | magick_info->stealth=MagickTrue; |
| 803 | status=AddValueToSplayTree(magick_list,magick_info->name,magick_info); |
| 804 | if (status == MagickFalse) |
| 805 | { |
| 806 | char |
| 807 | *message; |
| 808 | |
| 809 | message=GetExceptionMessage(errno); |
| 810 | ThrowFatalException(ResourceLimitFatalError, |
| 811 | "MemoryAllocationFailed"); |
| 812 | message=DestroyString(message); |
| 813 | } |
| 814 | #if defined(MAGICKCORE_MODULES_SUPPORT) |
| 815 | (void) GetModuleInfo((char *) NULL,exception); |
| 816 | #endif |
| 817 | #if !defined(MAGICKCORE_BUILD_MODULES) |
| 818 | RegisterStaticModules(); |
| 819 | #endif |
| 820 | instantiate_magick=MagickTrue; |
| 821 | } |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 822 | UnlockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 823 | } |
| 824 | return(magick_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse); |
| 825 | } |
| 826 | |
| 827 | /* |
| 828 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 829 | % % |
| 830 | % % |
| 831 | % % |
| 832 | + I s M a g i c k C o n f l i c t % |
| 833 | % % |
| 834 | % % |
| 835 | % % |
| 836 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 837 | % |
| 838 | % IsMagickConflict() returns MagickTrue if the image format is not a valid |
| 839 | % image format or conflicts with a logical drive (.e.g. X:). |
| 840 | % |
| 841 | % The format of the IsMagickConflict method is: |
| 842 | % |
| 843 | % MagickBooleanType IsMagickConflict(const char *magick) |
| 844 | % |
| 845 | % A description of each parameter follows: |
| 846 | % |
| 847 | % o magick: Specifies the image format. |
| 848 | % |
| 849 | */ |
| 850 | MagickExport MagickBooleanType IsMagickConflict(const char *magick) |
| 851 | { |
| 852 | const DelegateInfo |
| 853 | *delegate_info; |
| 854 | |
| 855 | const MagickInfo |
| 856 | *magick_info; |
| 857 | |
| 858 | ExceptionInfo |
| 859 | *exception; |
| 860 | |
| 861 | assert(magick != (char *) NULL); |
| 862 | exception=AcquireExceptionInfo(); |
| 863 | magick_info=GetMagickInfo(magick,exception); |
| 864 | delegate_info=GetDelegateInfo(magick,(char *) NULL,exception); |
| 865 | if (delegate_info == (const DelegateInfo *) NULL) |
| 866 | delegate_info=GetDelegateInfo((char *) NULL,magick,exception); |
| 867 | exception=DestroyExceptionInfo(exception); |
| 868 | if ((magick_info == (const MagickInfo *) NULL) && |
| 869 | (delegate_info == (const DelegateInfo *) NULL)) |
| 870 | return(MagickTrue); |
| 871 | #if defined(macintosh) |
| 872 | return(MACIsMagickConflict(magick)); |
| 873 | #elif defined(vms) |
| 874 | return(VMSIsMagickConflict(magick)); |
| 875 | #elif defined(__WINDOWS__) |
| 876 | return(NTIsMagickConflict(magick)); |
| 877 | #else |
| 878 | return(MagickFalse); |
| 879 | #endif |
| 880 | } |
| 881 | |
| 882 | /* |
| 883 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 884 | % % |
| 885 | % % |
| 886 | % % |
| 887 | + L i s t M a g i c k I n f o % |
| 888 | % % |
| 889 | % % |
| 890 | % % |
| 891 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 892 | % |
| 893 | % ListMagickInfo() lists the image formats to a file. |
| 894 | % |
| 895 | % The format of the ListMagickInfo method is: |
| 896 | % |
| 897 | % MagickBooleanType ListMagickInfo(FILE *file,ExceptionInfo *exception) |
| 898 | % |
| 899 | % A description of each parameter follows. |
| 900 | % |
| 901 | % o file: A file handle. |
| 902 | % |
| 903 | % o exception: return any errors or warnings in this structure. |
| 904 | % |
| 905 | */ |
| 906 | MagickExport MagickBooleanType ListMagickInfo(FILE *file, |
| 907 | ExceptionInfo *exception) |
| 908 | { |
| 909 | const MagickInfo |
| 910 | **magick_info; |
| 911 | |
| 912 | long |
| 913 | j; |
| 914 | |
| 915 | register long |
| 916 | i; |
| 917 | |
| 918 | unsigned long |
| 919 | number_formats; |
| 920 | |
| 921 | if (file == (FILE *) NULL) |
| 922 | file=stdout; |
| 923 | magick_info=GetMagickInfoList("*",&number_formats,exception); |
| 924 | if (magick_info == (const MagickInfo **) NULL) |
| 925 | return(MagickFalse); |
| 926 | ClearMagickException(exception); |
| 927 | #if !defined(MAGICKCORE_MODULES_SUPPORT) |
| 928 | (void) fprintf(file," Format Mode Description\n"); |
| 929 | #else |
| 930 | (void) fprintf(file," Format Module Mode Description\n"); |
| 931 | #endif |
| 932 | (void) fprintf(file,"--------------------------------------------------------" |
| 933 | "-----------------------\n"); |
| 934 | for (i=0; i < (long) number_formats; i++) |
| 935 | { |
| 936 | if (magick_info[i]->stealth != MagickFalse) |
| 937 | continue; |
| 938 | (void) fprintf(file,"%9s%c ",magick_info[i]->name != (char *) NULL ? |
| 939 | magick_info[i]->name : "", |
| 940 | magick_info[i]->blob_support != MagickFalse ? '*' : ' '); |
| 941 | #if defined(MAGICKCORE_MODULES_SUPPORT) |
| 942 | { |
| 943 | char |
| 944 | module[MaxTextExtent]; |
| 945 | |
| 946 | *module='\0'; |
| 947 | if (magick_info[i]->module != (char *) NULL) |
| 948 | (void) CopyMagickString(module,magick_info[i]->module,MaxTextExtent); |
| 949 | (void) ConcatenateMagickString(module," ",MaxTextExtent); |
| 950 | module[9]='\0'; |
| 951 | (void) fprintf(file,"%9s ",module); |
| 952 | } |
| 953 | #endif |
| 954 | (void) fprintf(file,"%c%c%c ",magick_info[i]->decoder ? 'r' : '-', |
| 955 | magick_info[i]->encoder ? 'w' : '-',magick_info[i]->encoder != NULL && |
| 956 | magick_info[i]->adjoin != MagickFalse ? '+' : '-'); |
| 957 | if (magick_info[i]->description != (char *) NULL) |
| 958 | (void) fprintf(file," %s",magick_info[i]->description); |
| 959 | if (magick_info[i]->version != (char *) NULL) |
| 960 | (void) fprintf(file," (%s)",magick_info[i]->version); |
| 961 | (void) fprintf(file,"\n"); |
| 962 | if (magick_info[i]->note != (char *) NULL) |
| 963 | { |
| 964 | char |
| 965 | **text; |
| 966 | |
| 967 | text=StringToList(magick_info[i]->note); |
| 968 | if (text != (char **) NULL) |
| 969 | { |
| 970 | for (j=0; text[j] != (char *) NULL; j++) |
| 971 | { |
| 972 | (void) fprintf(file," %s\n",text[j]); |
| 973 | text[j]=DestroyString(text[j]); |
| 974 | } |
| 975 | text=(char **) RelinquishMagickMemory(text); |
| 976 | } |
| 977 | } |
| 978 | } |
| 979 | (void) fprintf(file,"\n* native blob support\n"); |
| 980 | (void) fprintf(file,"r read support\n"); |
| 981 | (void) fprintf(file,"w write support\n"); |
| 982 | (void) fprintf(file,"+ support for multiple images\n"); |
| 983 | (void) fflush(file); |
| 984 | magick_info=(const MagickInfo **) RelinquishMagickMemory((void *) |
| 985 | magick_info); |
| 986 | return(MagickTrue); |
| 987 | } |
| 988 | |
| 989 | /* |
| 990 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 991 | % % |
| 992 | % % |
| 993 | % % |
| 994 | % I s M a g i c k I n s t a n t i a t e d % |
| 995 | % % |
| 996 | % % |
| 997 | % % |
| 998 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 999 | % |
| 1000 | % IsMagickInstantiated() returns MagickTrue if the ImageMagick environment |
| 1001 | % is currently instantiated: MagickCoreGenesis() has been called but |
| 1002 | % MagickDestroy() has not. |
| 1003 | % |
| 1004 | % The format of the IsMagickInstantiated method is: |
| 1005 | % |
| 1006 | % MagickBooleanType IsMagickInstantiated(void) |
| 1007 | % |
| 1008 | */ |
| 1009 | MagickExport MagickBooleanType IsMagickInstantiated(void) |
| 1010 | { |
| 1011 | return(instantiate_magick); |
| 1012 | } |
| 1013 | |
| 1014 | /* |
| 1015 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1016 | % % |
| 1017 | % % |
| 1018 | % % |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1019 | + M a g i c k C o m p o n e n t G e n e s i s % |
| 1020 | % % |
| 1021 | % % |
| 1022 | % % |
| 1023 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1024 | % |
| 1025 | % MagickComponentGenesis() instantiates the magick component. |
| 1026 | % |
| 1027 | % The format of the MagickComponentGenesis method is: |
| 1028 | % |
| 1029 | % MagickBooleanType MagickComponentGenesis(void) |
| 1030 | % |
| 1031 | */ |
| 1032 | MagickExport MagickBooleanType MagickComponentGenesis(void) |
| 1033 | { |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 1034 | assert(magick_semaphore == (SemaphoreInfo *) NULL); |
| 1035 | magick_semaphore=AllocateSemaphoreInfo(); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1036 | return(MagickTrue); |
| 1037 | } |
| 1038 | |
| 1039 | /* |
| 1040 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1041 | % % |
| 1042 | % % |
| 1043 | % % |
| 1044 | + M a g i c k C o m p o n e n t T e r m i n u s % |
| 1045 | % % |
| 1046 | % % |
| 1047 | % % |
| 1048 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1049 | % |
| 1050 | % MagickComponentTerminus() destroys the magick component. |
| 1051 | % |
| 1052 | % The format of the MagickComponentTerminus method is: |
| 1053 | % |
| 1054 | % void MagickComponentTerminus(void) |
| 1055 | % |
| 1056 | */ |
| 1057 | MagickExport void MagickComponentTerminus(void) |
| 1058 | { |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 1059 | if (magick_semaphore == (SemaphoreInfo *) NULL) |
| 1060 | AcquireSemaphoreInfo(&magick_semaphore); |
| 1061 | LockSemaphoreInfo(magick_semaphore); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1062 | if (magick_list != (SplayTreeInfo *) NULL) |
| 1063 | magick_list=DestroySplayTree(magick_list); |
| 1064 | instantiate_magick=MagickFalse; |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 1065 | UnlockSemaphoreInfo(magick_semaphore); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1066 | DestroySemaphoreInfo(&magick_semaphore); |
| 1067 | } |
| 1068 | |
| 1069 | /* |
| 1070 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1071 | % % |
| 1072 | % % |
| 1073 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1074 | % M a g i c k C o r e G e n e s i s % |
| 1075 | % % |
| 1076 | % % |
| 1077 | % % |
| 1078 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1079 | % |
| 1080 | % MagickCoreGenesis() initializes the MagickCore environment. |
| 1081 | % |
| 1082 | % The format of the MagickCoreGenesis function is: |
| 1083 | % |
| 1084 | % MagickCoreGenesis(const char *path, |
| 1085 | % const MagickBooleanType establish_signal_handlers) |
| 1086 | % |
| 1087 | % A description of each parameter follows: |
| 1088 | % |
| 1089 | % o path: the execution path of the current ImageMagick client. |
| 1090 | % |
| 1091 | % o establish_signal_handlers: set to MagickTrue to use MagickCore's own |
| 1092 | % signal handlers for common signals. |
| 1093 | % |
| 1094 | */ |
| 1095 | |
| 1096 | static SignalHandler *SetMagickSignalHandler(int signal_number, |
| 1097 | SignalHandler *handler) |
| 1098 | { |
| 1099 | #if defined(MAGICKCORE_HAVE_SIGACTION) && defined(MAGICKCORE_HAVE_SIGEMPTYSET) |
| 1100 | int |
| 1101 | status; |
| 1102 | |
| 1103 | sigset_t |
| 1104 | mask; |
| 1105 | |
| 1106 | struct sigaction |
| 1107 | action, |
| 1108 | previous_action; |
| 1109 | |
| 1110 | sigemptyset(&mask); |
| 1111 | sigaddset(&mask,signal_number); |
| 1112 | sigprocmask(SIG_BLOCK,&mask,NULL); |
| 1113 | action.sa_mask=mask; |
| 1114 | action.sa_handler=handler; |
| 1115 | action.sa_flags=0; |
| 1116 | #if defined(SA_INTERRUPT) |
| 1117 | action.sa_flags|=SA_INTERRUPT; |
| 1118 | #endif |
| 1119 | status=sigaction(signal_number,&action,&previous_action); |
| 1120 | if (status < 0) |
| 1121 | return(SIG_ERR); |
| 1122 | sigprocmask(SIG_UNBLOCK,&mask,NULL); |
| 1123 | return(previous_action.sa_handler); |
| 1124 | #else |
| 1125 | return(signal(signal_number,handler)); |
| 1126 | #endif |
| 1127 | } |
| 1128 | |
| 1129 | static void MagickSignalHandler(int signal_number) |
| 1130 | { |
| 1131 | #if !defined(MAGICKCORE_HAVE_SIGACTION) |
| 1132 | (void) signal(signal_number,SIG_IGN); |
| 1133 | #endif |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1134 | AsynchronousResourceComponentTerminus(); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1135 | instantiate_magick=MagickFalse; |
| 1136 | (void) SetMagickSignalHandler(signal_number,signal_handlers[signal_number]); |
| 1137 | #if defined(MAGICKCORE_HAVE_RAISE) |
| 1138 | if (signal_handlers[signal_number] != MagickSignalHandler) |
| 1139 | raise(signal_number); |
| 1140 | #endif |
| 1141 | #if !defined(MAGICKCORE_HAVE__EXIT) |
| 1142 | exit(signal_number); |
| 1143 | #else |
| 1144 | #if defined(SIGHUP) |
| 1145 | if (signal_number == SIGHUP) |
| 1146 | exit(signal_number); |
| 1147 | #endif |
| 1148 | #if defined(SIGINT) && !defined(__WINDOWS__) |
| 1149 | if (signal_number == SIGINT) |
| 1150 | exit(signal_number); |
| 1151 | #endif |
| 1152 | #if defined(SIGTERM) |
| 1153 | if (signal_number == SIGTERM) |
| 1154 | exit(signal_number); |
| 1155 | #endif |
| 1156 | _exit(signal_number); |
| 1157 | #endif |
| 1158 | } |
| 1159 | |
| 1160 | static SignalHandler *RegisterMagickSignalHandler(int signal_number) |
| 1161 | { |
| 1162 | SignalHandler |
| 1163 | *handler; |
| 1164 | |
| 1165 | handler=SetMagickSignalHandler(signal_number,MagickSignalHandler); |
| 1166 | if (handler == SIG_ERR) |
| 1167 | return(handler); |
| 1168 | if (handler != SIG_DFL) |
| 1169 | handler=SetMagickSignalHandler(signal_number,handler); |
| 1170 | else |
| 1171 | (void) LogMagickEvent(ConfigureEvent,GetMagickModule(), |
| 1172 | "Register handler for signal: %d",signal_number); |
| 1173 | return(handler); |
| 1174 | } |
| 1175 | |
| 1176 | MagickExport void MagickCoreGenesis(const char *path, |
| 1177 | const MagickBooleanType establish_signal_handlers) |
| 1178 | { |
| 1179 | char |
| 1180 | *events, |
| 1181 | execution_path[MaxTextExtent], |
| 1182 | filename[MaxTextExtent]; |
| 1183 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1184 | /* |
| 1185 | Initialize the Magick environment. |
| 1186 | */ |
| 1187 | (void) setlocale(LC_ALL,""); |
| 1188 | (void) setlocale(LC_NUMERIC,"C"); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1189 | (void) SemaphoreComponentGenesis(); |
| 1190 | (void) LogComponentGenesis(); |
| 1191 | (void) LocaleComponentGenesis(); |
| 1192 | (void) RandomComponentGenesis(); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1193 | events=GetEnvironmentValue("MAGICK_DEBUG"); |
| 1194 | if (events != (char *) NULL) |
| 1195 | { |
| 1196 | (void) SetLogEventMask(events); |
| 1197 | events=DestroyString(events); |
| 1198 | } |
| 1199 | #if defined(__WINDOWS__) |
| 1200 | #if defined(_DEBUG) && !defined(__BORLANDC__) && !defined(__MINGW32__) |
| 1201 | if (IsEventLogging() != MagickFalse) |
| 1202 | { |
| 1203 | int |
| 1204 | debug; |
| 1205 | |
| 1206 | debug=_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG); |
| 1207 | debug|=_CRTDBG_CHECK_ALWAYS_DF |_CRTDBG_DELAY_FREE_MEM_DF | |
| 1208 | _CRTDBG_LEAK_CHECK_DF; |
| 1209 | if (0) |
| 1210 | { |
| 1211 | debug=_CrtSetDbgFlag(debug); |
| 1212 | _ASSERTE(_CrtCheckMemory()); |
| 1213 | } |
| 1214 | } |
| 1215 | #endif |
| 1216 | #endif |
| 1217 | /* |
| 1218 | Set client name and execution path. |
| 1219 | */ |
| 1220 | (void) GetExecutionPath(execution_path,MaxTextExtent); |
| 1221 | if ((path != (const char *) NULL) && (*path != '\0')) |
| 1222 | (void) CopyMagickString(execution_path,path,MaxTextExtent); |
| 1223 | GetPathComponent(execution_path,TailPath,filename); |
| 1224 | (void) SetClientName(filename); |
| 1225 | GetPathComponent(execution_path,HeadPath,execution_path); |
| 1226 | (void) SetClientPath(execution_path); |
| 1227 | if (establish_signal_handlers != MagickFalse) |
| 1228 | { |
| 1229 | /* |
| 1230 | Set signal handlers. |
| 1231 | */ |
| 1232 | #if defined(SIGABRT) |
| 1233 | if (signal_handlers[SIGABRT] == (SignalHandler *) NULL) |
| 1234 | signal_handlers[SIGABRT]=RegisterMagickSignalHandler(SIGABRT); |
| 1235 | #endif |
| 1236 | #if defined(SIGFPE) |
| 1237 | if (signal_handlers[SIGFPE] == (SignalHandler *) NULL) |
| 1238 | signal_handlers[SIGFPE]=RegisterMagickSignalHandler(SIGFPE); |
| 1239 | #endif |
| 1240 | #if defined(SIGHUP) |
| 1241 | if (signal_handlers[SIGHUP] == (SignalHandler *) NULL) |
| 1242 | signal_handlers[SIGHUP]=RegisterMagickSignalHandler(SIGHUP); |
| 1243 | #endif |
| 1244 | #if defined(SIGINT) && !defined(__WINDOWS__) |
| 1245 | if (signal_handlers[SIGINT] == (SignalHandler *) NULL) |
| 1246 | signal_handlers[SIGINT]=RegisterMagickSignalHandler(SIGINT); |
| 1247 | #endif |
| 1248 | #if defined(SIGQUIT) |
| 1249 | if (signal_handlers[SIGQUIT] == (SignalHandler *) NULL) |
| 1250 | signal_handlers[SIGQUIT]=RegisterMagickSignalHandler(SIGQUIT); |
| 1251 | #endif |
| 1252 | #if defined(SIGTERM) |
| 1253 | if (signal_handlers[SIGTERM] == (SignalHandler *) NULL) |
| 1254 | signal_handlers[SIGTERM]=RegisterMagickSignalHandler(SIGTERM); |
| 1255 | #endif |
| 1256 | #if defined(SIGXCPU) |
| 1257 | if (signal_handlers[SIGXCPU] == (SignalHandler *) NULL) |
| 1258 | signal_handlers[SIGXCPU]=RegisterMagickSignalHandler(SIGXCPU); |
| 1259 | #endif |
| 1260 | #if defined(SIGXFSZ) |
| 1261 | if (signal_handlers[SIGXFSZ] == (SignalHandler *) NULL) |
| 1262 | signal_handlers[SIGXFSZ]=RegisterMagickSignalHandler(SIGXFSZ); |
| 1263 | #endif |
| 1264 | } |
| 1265 | /* |
cristy | af8b5cd | 2009-10-24 00:29:23 +0000 | [diff] [blame] | 1266 | Instantiate magick resources. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1267 | */ |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 1268 | (void) ConfigureComponentGenesis(); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1269 | (void) PolicyComponentGenesis(); |
| 1270 | (void) CacheComponentGenesis(); |
| 1271 | (void) RegistryComponentGenesis(); |
| 1272 | (void) ResourceComponentGenesis(); |
| 1273 | (void) CoderComponentGenesis(); |
| 1274 | (void) MagickComponentGenesis(); |
cristy | af8b5cd | 2009-10-24 00:29:23 +0000 | [diff] [blame] | 1275 | #if defined(MAGICKCORE_MODULES_SUPPORT) |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1276 | (void) ModuleComponentGenesis(); |
cristy | af8b5cd | 2009-10-24 00:29:23 +0000 | [diff] [blame] | 1277 | #endif |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1278 | (void) DelegateComponentGenesis(); |
| 1279 | (void) MagicComponentGenesis(); |
| 1280 | (void) ColorComponentGenesis(); |
| 1281 | (void) TypeComponentGenesis(); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1282 | (void) MimeComponentGenesis(); |
| 1283 | (void) ConstituteComponentGenesis(); |
| 1284 | (void) XComponentGenesis(); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1285 | } |
| 1286 | |
| 1287 | /* |
| 1288 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1289 | % % |
| 1290 | % % |
| 1291 | % % |
| 1292 | % M a g i c k C o r e T e r m i n u s % |
| 1293 | % % |
| 1294 | % % |
| 1295 | % % |
| 1296 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1297 | % |
| 1298 | % MagickCoreTerminus() destroys the MagickCore environment. |
| 1299 | % |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1300 | % The format of the MagickCoreTerminus function is: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1301 | % |
| 1302 | % MagickCoreTerminus(void) |
| 1303 | % |
| 1304 | */ |
| 1305 | MagickExport void MagickCoreTerminus(void) |
| 1306 | { |
| 1307 | #if defined(MAGICKCORE_X11_DELEGATE) |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1308 | XComponentTerminus(); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1309 | #endif |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1310 | ConstituteComponentTerminus(); |
| 1311 | MimeComponentTerminus(); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1312 | TypeComponentTerminus(); |
| 1313 | ColorComponentTerminus(); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1314 | #if defined(__WINDOWS__) |
| 1315 | NTGhostscriptUnLoadDLL(); |
| 1316 | #endif |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1317 | MagicComponentTerminus(); |
| 1318 | DelegateComponentTerminus(); |
| 1319 | MagickComponentTerminus(); |
cristy | af8b5cd | 2009-10-24 00:29:23 +0000 | [diff] [blame] | 1320 | #if !defined(MAGICKCORE_BUILD_MODULES) |
| 1321 | UnregisterStaticModules(); |
| 1322 | #endif |
| 1323 | #if defined(MAGICKCORE_MODULES_SUPPORT) |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1324 | ModuleComponentTerminus(); |
cristy | af8b5cd | 2009-10-24 00:29:23 +0000 | [diff] [blame] | 1325 | #endif |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1326 | CoderComponentTerminus(); |
| 1327 | ResourceComponentTerminus(); |
| 1328 | RegistryComponentTerminus(); |
| 1329 | CacheComponentTerminus(); |
| 1330 | PolicyComponentTerminus(); |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 1331 | ConfigureComponentTerminus(); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 1332 | RandomComponentTerminus(); |
| 1333 | LocaleComponentTerminus(); |
| 1334 | LogComponentTerminus(); |
| 1335 | SemaphoreComponentTerminus(); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1336 | instantiate_magick=MagickFalse; |
| 1337 | } |
| 1338 | |
| 1339 | /* |
| 1340 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1341 | % % |
| 1342 | % % |
| 1343 | % % |
| 1344 | + R e g i s t e r M a g i c k I n f o % |
| 1345 | % % |
| 1346 | % % |
| 1347 | % % |
| 1348 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1349 | % |
| 1350 | % RegisterMagickInfo() adds attributes for a particular image format to the |
| 1351 | % list of supported formats. The attributes include the image format name, |
| 1352 | % a method to read and/or write the format, whether the format supports the |
| 1353 | % saving of more than one frame to the same file or blob, whether the format |
| 1354 | % supports native in-memory I/O, and a brief description of the format. |
| 1355 | % |
| 1356 | % The format of the RegisterMagickInfo method is: |
| 1357 | % |
| 1358 | % MagickInfo *RegisterMagickInfo(MagickInfo *magick_info) |
| 1359 | % |
| 1360 | % A description of each parameter follows: |
| 1361 | % |
| 1362 | % o magick_info: the magick info. |
| 1363 | % |
| 1364 | */ |
| 1365 | MagickExport MagickInfo *RegisterMagickInfo(MagickInfo *magick_info) |
| 1366 | { |
| 1367 | MagickBooleanType |
| 1368 | status; |
| 1369 | |
| 1370 | /* |
| 1371 | Delete any existing name. |
| 1372 | */ |
| 1373 | assert(magick_info != (MagickInfo *) NULL); |
| 1374 | assert(magick_info->signature == MagickSignature); |
| 1375 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",magick_info->name); |
| 1376 | if (magick_list == (SplayTreeInfo *) NULL) |
| 1377 | return((MagickInfo *) NULL); |
| 1378 | status=AddValueToSplayTree(magick_list,magick_info->name,magick_info); |
| 1379 | if (status == MagickFalse) |
| 1380 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 1381 | return(magick_info); |
| 1382 | } |
| 1383 | |
| 1384 | /* |
| 1385 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1386 | % % |
| 1387 | % % |
| 1388 | % % |
| 1389 | + S e t M a g i c k I n f o % |
| 1390 | % % |
| 1391 | % % |
| 1392 | % % |
| 1393 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1394 | % |
| 1395 | % SetMagickInfo() allocates a MagickInfo structure and initializes the members |
| 1396 | % to default values. |
| 1397 | % |
| 1398 | % The format of the SetMagickInfo method is: |
| 1399 | % |
| 1400 | % MagickInfo *SetMagickInfo(const char *name) |
| 1401 | % |
| 1402 | % A description of each parameter follows: |
| 1403 | % |
| 1404 | % o magick_info: Method SetMagickInfo returns the allocated and initialized |
| 1405 | % MagickInfo structure. |
| 1406 | % |
| 1407 | % o name: a character string that represents the image format associated |
| 1408 | % with the MagickInfo structure. |
| 1409 | % |
| 1410 | */ |
| 1411 | MagickExport MagickInfo *SetMagickInfo(const char *name) |
| 1412 | { |
| 1413 | MagickInfo |
| 1414 | *magick_info; |
| 1415 | |
| 1416 | assert(name != (const char *) NULL); |
| 1417 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",name); |
| 1418 | magick_info=(MagickInfo *) AcquireMagickMemory(sizeof(*magick_info)); |
| 1419 | if (magick_info == (MagickInfo *) NULL) |
| 1420 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 1421 | (void) ResetMagickMemory(magick_info,0,sizeof(*magick_info)); |
| 1422 | magick_info->name=ConstantString(name); |
| 1423 | magick_info->adjoin=MagickTrue; |
| 1424 | magick_info->blob_support=MagickTrue; |
| 1425 | magick_info->thread_support=(MagickStatusType) (DecoderThreadSupport | |
| 1426 | EncoderThreadSupport); |
| 1427 | magick_info->signature=MagickSignature; |
| 1428 | return(magick_info); |
| 1429 | } |
| 1430 | |
| 1431 | /* |
| 1432 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1433 | % % |
| 1434 | % % |
| 1435 | % % |
| 1436 | + U n r e g i s t e r M a g i c k I n f o % |
| 1437 | % % |
| 1438 | % % |
| 1439 | % % |
| 1440 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1441 | % |
| 1442 | % UnregisterMagickInfo() removes a name from the magick info list. It returns |
| 1443 | % MagickFalse if the name does not exist in the list otherwise MagickTrue. |
| 1444 | % |
| 1445 | % The format of the UnregisterMagickInfo method is: |
| 1446 | % |
| 1447 | % MagickBooleanType UnregisterMagickInfo(const char *name) |
| 1448 | % |
| 1449 | % A description of each parameter follows: |
| 1450 | % |
| 1451 | % o name: a character string that represents the image format we are |
| 1452 | % looking for. |
| 1453 | % |
| 1454 | */ |
| 1455 | MagickExport MagickBooleanType UnregisterMagickInfo(const char *name) |
| 1456 | { |
| 1457 | register const MagickInfo |
| 1458 | *p; |
| 1459 | |
| 1460 | MagickBooleanType |
| 1461 | status; |
| 1462 | |
| 1463 | assert(name != (const char *) NULL); |
| 1464 | if (magick_list == (SplayTreeInfo *) NULL) |
| 1465 | return(MagickFalse); |
| 1466 | if (GetNumberOfNodesInSplayTree(magick_list) == 0) |
| 1467 | return(MagickFalse); |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 1468 | LockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1469 | ResetSplayTreeIterator(magick_list); |
| 1470 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 1471 | while (p != (const MagickInfo *) NULL) |
| 1472 | { |
| 1473 | if (LocaleCompare(p->name,name) == 0) |
| 1474 | break; |
| 1475 | p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| 1476 | } |
| 1477 | status=DeleteNodeByValueFromSplayTree(magick_list,p); |
cristy | 18b1744 | 2009-10-25 18:36:48 +0000 | [diff] [blame] | 1478 | UnlockSemaphoreInfo(magick_semaphore); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1479 | return(status); |
| 1480 | } |