granicus.if.org Git - imagemagick/blob - MagickCore/coder.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                   CCCC   OOO   DDDD    EEEEE  RRRR                          %
   7 %                  C      O   O  D   D   E      R   R                         %
   8 %                  C      O   O  D   D   EEE    RRRR                          %
   9 %                  C      O   O  D   D   E      R R                           %
  10 %                   CCCC   OOO   DDDD    EEEEE  R  R                          %
  11 %                                                                             %
  12 %                                                                             %
  13 %                     MagickCore Image Coder Methods                          %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                   Cristy                                    %
  17 %                                 May 2001                                    %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2014 ImageMagick Studio LLC, a non-profit organization      %
  21 %  dedicated to making software imaging solutions freely available.           %
  22 %                                                                             %
  23 %  You may not use this file except in compliance with the License.  You may  %
  24 %  obtain a copy of the License at                                            %
  25 %                                                                             %
  26 %    http://www.imagemagick.org/script/license.php                            %
  27 %                                                                             %
  28 %  Unless required by applicable law or agreed to in writing, software        %
  29 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  30 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  31 %  See the License for the specific language governing permissions and        %
  32 %  limitations under the License.                                             %
  33 %                                                                             %
  34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 %
  36 %
  37 */
  38 \f
  39 /*
  40   Include declarations.
  41 */
  42 #include "MagickCore/studio.h"
  43 #include "MagickCore/blob.h"
  44 #include "MagickCore/client.h"
  45 #include "MagickCore/coder.h"
  46 #include "MagickCore/coder-private.h"
  47 #include "MagickCore/configure.h"
  48 #include "MagickCore/draw.h"
  49 #include "MagickCore/exception.h"
  50 #include "MagickCore/exception-private.h"
  51 #include "MagickCore/hashmap.h"
  52 #include "MagickCore/log.h"
  53 #include "MagickCore/memory_.h"
  54 #include "MagickCore/option.h"
  55 #include "MagickCore/semaphore.h"
  56 #include "MagickCore/string_.h"
  57 #include "MagickCore/splay-tree.h"
  58 #include "MagickCore/token.h"
  59 #include "MagickCore/utility.h"
  60 #include "MagickCore/utility-private.h"
  61 #include "MagickCore/xml-tree.h"
  62 \f
  63 /*
  64   Define declarations.
  65 */
  66 #define MagickCoderFilename  "coder.xml"
  67 \f
  68 /*
  69   Typedef declarations.
  70 */
  71 typedef struct _CoderMapInfo
  72 {
  73   const char
  74     *magick,
  75     *name;
  76 } CoderMapInfo;
  77 \f
  78 /*
  79   Static declarations.
  80 */
  81 static const CoderMapInfo
  82   CoderMap[] =
  83   {
  84     { "3FR", "DNG" },
  85     { "8BIM", "META" },
  86     { "8BIMTEXT", "META" },
  87     { "8BIMWTEXT", "META" },
  88     { "AFM", "TTF" },
  89     { "A", "RAW" },
  90     { "AI", "PDF" },
  91     { "APP1JPEG", "META" },
  92     { "APP1", "META" },
  93     { "ARW", "DNG" },
  94     { "AVI", "MPEG" },
  95     { "BIE", "JBIG" },
  96     { "BMP2", "BMP" },
  97     { "BMP3", "BMP" },
  98     { "B", "RAW" },
  99     { "BRF", "BRAILLE" },
 100     { "BGRA", "BGR" },
 101     { "CMYKA", "CMYK" },
 102     { "C", "RAW" },
 103     { "CAL", "CALS" },
 104     { "CANVAS", "XC" },
 105     { "CR2", "DNG" },
 106     { "CRW", "DNG" },
 107     { "CUR", "ICON" },
 108     { "DCR", "DNG" },
 109     { "DCX", "PCX" },
 110     { "DFONT", "TTF" },
 111     { "EPDF", "PDF" },
 112     { "EPI", "PS" },
 113     { "EPS2", "PS2" },
 114     { "EPS3", "PS3" },
 115     { "EPSF", "PS" },
 116     { "EPSI", "PS" },
 117     { "EPS", "PS" },
 118     { "EPT2", "EPT" },
 119     { "EPT3", "EPT" },
 120     { "ERF", "DNG" },
 121     { "EXIF", "META" },
 122     { "FILE", "URL" },
 123     { "FRACTAL", "PLASMA" },
 124     { "FTP", "URL" },
 125     { "FTS", "FITS" },
 126     { "G3", "FAX" },
 127     { "GIF87", "GIF" },
 128     { "G", "RAW" },
 129     { "GRANITE", "MAGICK" },
 130     { "GROUP4", "TIFF" },
 131     { "GV", "DOT" },
 132     { "K25", "DNG" },
 133     { "KDC", "DNG" },
 134     { "H", "MAGICK" },
 135     { "HTM", "HTML" },
 136     { "HTTP", "URL" },
 137     { "HTTPS", "URL" },
 138     { "ICB", "TGA" },
 139     { "ICC", "META" },
 140     { "ICM", "META" },
 141     { "ICO", "ICON" },
 142     { "IMPLICIT", "***" },
 143     { "IPTC", "META" },
 144     { "IPTCTEXT", "META" },
 145     { "IPTCWTEXT", "META" },
 146     { "ISOBRL", "BRAILLE" },
 147     { "JBG", "JBIG" },
 148     { "JNG", "PNG" },
 149     { "JPC", "JP2" },
 150     { "J2C", "JP2" },
 151     { "J2K", "JP2" },
 152     { "JPG", "JPEG" },
 153     { "JPX", "JP2" },
 154     { "K", "RAW" },
 155     { "LOGO", "MAGICK" },
 156     { "M2V", "MPEG" },
 157     { "M4V", "MPEG" },
 158     { "M", "RAW" },
 159     { "MNG", "PNG" },
 160     { "MOV", "MPEG" },
 161     { "MP4", "MPEG" },
 162     { "MPG", "MPEG" },
 163     { "MPRI", "MPR" },
 164     { "MEF", "DNG" },
 165     { "MRW", "DNG" },
 166     { "MSVG", "SVG" },
 167     { "NEF", "DNG" },
 168     { "NETSCAPE", "MAGICK" },
 169     { "NRW", "DNG" },
 170     { "O", "RAW" },
 171     { "ORF", "DNG" },
 172     { "OTF", "TTF" },
 173     { "P7", "PNM" },
 174     { "PAL", "UYVY" },
 175     { "PAM", "PNM" },
 176     { "PBM", "PNM" },
 177     { "PCDS", "PCD" },
 178     { "PDFA", "PDF" },
 179     { "PEF", "DNG" },
 180     { "PEF", "DNG" },
 181     { "PFA", "TTF" },
 182     { "PFB", "TTF" },
 183     { "PFM", "PNM" },
 184     { "PGM", "PNM" },
 185     { "PGX", "JP2" },
 186     { "PICON", "XPM" },
 187     { "PJPEG", "JPEG" },
 188     { "PM", "XPM" },
 189     { "PNG24", "PNG" },
 190     { "PNG32", "PNG" },
 191     { "PNG8", "PNG" },
 192     { "PPM", "PNM" },
 193     { "PSB", "PSD" },
 194     { "PTIF", "TIFF" },
 195     { "RADIAL-GRADIENT", "GRADIENT" },
 196     { "RAF", "DNG" },
 197     { "RAS", "SUN" },
 198     { "RGBA", "RGB" },
 199     { "RGBO", "RGB" },
 200     { "R", "RAW" },
 201     { "ROSE", "MAGICK" },
 202     { "RW2", "DNG" },
 203     { "SHTML", "HTML" },
 204     { "SPARSE-COLOR", "TXT" },
 205     { "SR2", "DNG" },
 206     { "SRF", "DNG" },
 207     { "SVGZ", "SVG" },
 208     { "TEXT", "TXT" },
 209     { "TIFF64", "TIFF" },
 210     { "TIF", "TIFF" },
 211     { "TTC", "TTF" },
 212     { "UBRL", "BRAILLE" },
 213     { "VDA", "TGA" },
 214     { "VST", "TGA" },
 215     { "WIZARD", "MAGICK" },
 216     { "WMV", "MPEG" },
 217     { "WMFWIN32", "EMF" },
 218     { "WMZ", "WMF" },
 219     { "X3f", "DNG" },
 220     { "XMP", "META" },
 221     { "XTRNARRAY", "XTRN" },
 222     { "XTRNBLOB", "XTRN" },
 223     { "XTRNFILE", "XTRN" },
 224     { "XTRNIMAGE", "XTRN" },
 225     { "XV", "VIFF" },
 226     { "Y", "RAW" },
 227     { "YCbCrA", "YCbCr" }
 228  };
 229
 230 static SemaphoreInfo
 231   *coder_semaphore = (SemaphoreInfo *) NULL;
 232
 233 static SplayTreeInfo
 234   *coder_list = (SplayTreeInfo *) NULL;
 235
 236 static volatile MagickBooleanType
 237   instantiate_coder = MagickFalse;
 238 \f
 239 /*
 240   Forward declarations.
 241 */
 242 static MagickBooleanType
 243   InitializeCoderList(ExceptionInfo *),
 244   LoadCoderLists(const char *,ExceptionInfo *);
 245 \f
 246 /*
 247 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 248 %                                                                             %
 249 %                                                                             %
 250 %                                                                             %
 251 +   C o d e r C o m p o n e n t G e n e s i s                                 %
 252 %                                                                             %
 253 %                                                                             %
 254 %                                                                             %
 255 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 256 %
 257 %  CoderComponentGenesis() instantiates the coder component.
 258 %
 259 %  The format of the CoderComponentGenesis method is:
 260 %
 261 %      MagickBooleanType CoderComponentGenesis(void)
 262 %
 263 */
 264 MagickPrivate MagickBooleanType CoderComponentGenesis(void)
 265 {
 266   AcquireSemaphoreInfo(&coder_semaphore);
 267   return(MagickTrue);
 268 }
 269 \f
 270 /*
 271 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 272 %                                                                             %
 273 %                                                                             %
 274 %                                                                             %
 275 +   C o d e r C o m p o n e n t T e r m i n u s                               %
 276 %                                                                             %
 277 %                                                                             %
 278 %                                                                             %
 279 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 280 %
 281 %  CoderComponentTerminus() destroys the coder component.
 282 %
 283 %  The format of the CoderComponentTerminus method is:
 284 %
 285 %      CoderComponentTerminus(void)
 286 %
 287 */
 288 MagickPrivate void CoderComponentTerminus(void)
 289 {
 290   if (coder_semaphore == (SemaphoreInfo *) NULL)
 291     AcquireSemaphoreInfo(&coder_semaphore);
 292   LockSemaphoreInfo(coder_semaphore);
 293   if (coder_list != (SplayTreeInfo *) NULL)
 294     coder_list=DestroySplayTree(coder_list);
 295   instantiate_coder=MagickFalse;
 296   UnlockSemaphoreInfo(coder_semaphore);
 297   DestroySemaphoreInfo(&coder_semaphore);
 298 }
 299 \f
 300 /*
 301 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 302 %                                                                             %
 303 %                                                                             %
 304 %                                                                             %
 305 +   G e t C o d e r I n f o                                                   %
 306 %                                                                             %
 307 %                                                                             %
 308 %                                                                             %
 309 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 310 %
 311 %  GetCoderInfo searches the coder list for the specified name and if found
 312 %  returns attributes for that coder.
 313 %
 314 %  The format of the GetCoderInfo method is:
 315 %
 316 %      const CoderInfo *GetCoderInfo(const char *name,ExceptionInfo *exception)
 317 %
 318 %  A description of each parameter follows:
 319 %
 320 %    o name: the coder name.
 321 %
 322 %    o exception: return any errors or warnings in this structure.
 323 %
 324 */
 325 MagickExport const CoderInfo *GetCoderInfo(const char *name,
 326   ExceptionInfo *exception)
 327 {
 328   assert(exception != (ExceptionInfo *) NULL);
 329   if ((coder_list == (SplayTreeInfo *) NULL) ||
 330       (instantiate_coder == MagickFalse))
 331     if (InitializeCoderList(exception) == MagickFalse)
 332       return((const CoderInfo *) NULL);
 333   if ((coder_list == (SplayTreeInfo *) NULL) ||
 334       (GetNumberOfNodesInSplayTree(coder_list) == 0))
 335     return((const CoderInfo *) NULL);
 336   if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
 337     {
 338       ResetSplayTreeIterator(coder_list);
 339       return((const CoderInfo *) GetNextValueInSplayTree(coder_list));
 340     }
 341   return((const CoderInfo *) GetValueFromSplayTree(coder_list,name));
 342 }
 343 \f
 344 /*
 345 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 346 %                                                                             %
 347 %                                                                             %
 348 %                                                                             %
 349 %   G e t C o d e r I n f o L i s t                                           %
 350 %                                                                             %
 351 %                                                                             %
 352 %                                                                             %
 353 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 354 %
 355 %  GetCoderInfoList() returns any coder_map that match the specified pattern.
 356 %  The format of the GetCoderInfoList function is:
 357 %
 358 %      const CoderInfo **GetCoderInfoList(const char *pattern,
 359 %        size_t *number_coders,ExceptionInfo *exception)
 360 %
 361 %  A description of each parameter follows:
 362 %
 363 %    o pattern: Specifies a pointer to a text string containing a pattern.
 364 %
 365 %    o number_coders:  This integer returns the number of coders in the list.
 366 %
 367 %    o exception: return any errors or warnings in this structure.
 368 %
 369 */
 370
 371 static int CoderInfoCompare(const void *x,const void *y)
 372 {
 373   const CoderInfo
 374     **p,
 375     **q;
 376
 377   p=(const CoderInfo **) x,
 378   q=(const CoderInfo **) y;
 379   if (LocaleCompare((*p)->path,(*q)->path) == 0)
 380     return(LocaleCompare((*p)->name,(*q)->name));
 381   return(LocaleCompare((*p)->path,(*q)->path));
 382 }
 383
 384 MagickExport const CoderInfo **GetCoderInfoList(const char *pattern,
 385   size_t *number_coders,ExceptionInfo *exception)
 386 {
 387   const CoderInfo
 388     **coder_map;
 389
 390   register const CoderInfo
 391     *p;
 392
 393   register ssize_t
 394     i;
 395
 396   /*
 397     Allocate coder list.
 398   */
 399   assert(pattern != (char *) NULL);
 400   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 401   assert(number_coders != (size_t *) NULL);
 402   *number_coders=0;
 403   p=GetCoderInfo("*",exception);
 404   if (p == (const CoderInfo *) NULL)
 405     return((const CoderInfo **) NULL);
 406   coder_map=(const CoderInfo **) AcquireQuantumMemory((size_t)
 407     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 408   if (coder_map == (const CoderInfo **) NULL)
 409     return((const CoderInfo **) NULL);
 410   /*
 411     Generate coder list.
 412   */
 413   LockSemaphoreInfo(coder_semaphore);
 414   ResetSplayTreeIterator(coder_list);
 415   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 416   for (i=0; p != (const CoderInfo *) NULL; )
 417   {
 418     if ((p->stealth == MagickFalse) &&
 419         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 420       coder_map[i++]=p;
 421     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 422   }
 423   UnlockSemaphoreInfo(coder_semaphore);
 424   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderInfoCompare);
 425   coder_map[i]=(CoderInfo *) NULL;
 426   *number_coders=(size_t) i;
 427   return(coder_map);
 428 }
 429 \f
 430 /*
 431 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 432 %                                                                             %
 433 %                                                                             %
 434 %                                                                             %
 435 %   G e t C o d e r L i s t                                                   %
 436 %                                                                             %
 437 %                                                                             %
 438 %                                                                             %
 439 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 440 %
 441 %  GetCoderList() returns any coder_map that match the specified pattern.
 442 %
 443 %  The format of the GetCoderList function is:
 444 %
 445 %      char **GetCoderList(const char *pattern,size_t *number_coders,
 446 %        ExceptionInfo *exception)
 447 %
 448 %  A description of each parameter follows:
 449 %
 450 %    o pattern: Specifies a pointer to a text string containing a pattern.
 451 %
 452 %    o number_coders:  This integer returns the number of coders in the list.
 453 %
 454 %    o exception: return any errors or warnings in this structure.
 455 %
 456 */
 457
 458 static int CoderCompare(const void *x,const void *y)
 459 {
 460   register const char
 461     **p,
 462     **q;
 463
 464   p=(const char **) x;
 465   q=(const char **) y;
 466   return(LocaleCompare(*p,*q));
 467 }
 468
 469 MagickExport char **GetCoderList(const char *pattern,
 470   size_t *number_coders,ExceptionInfo *exception)
 471 {
 472   char
 473     **coder_map;
 474
 475   register const CoderInfo
 476     *p;
 477
 478   register ssize_t
 479     i;
 480
 481   /*
 482     Allocate coder list.
 483   */
 484   assert(pattern != (char *) NULL);
 485   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 486   assert(number_coders != (size_t *) NULL);
 487   *number_coders=0;
 488   p=GetCoderInfo("*",exception);
 489   if (p == (const CoderInfo *) NULL)
 490     return((char **) NULL);
 491   coder_map=(char **) AcquireQuantumMemory((size_t)
 492     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 493   if (coder_map == (char **) NULL)
 494     return((char **) NULL);
 495   /*
 496     Generate coder list.
 497   */
 498   LockSemaphoreInfo(coder_semaphore);
 499   ResetSplayTreeIterator(coder_list);
 500   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 501   for (i=0; p != (const CoderInfo *) NULL; )
 502   {
 503     if ((p->stealth == MagickFalse) &&
 504         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 505       coder_map[i++]=ConstantString(p->name);
 506     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 507   }
 508   UnlockSemaphoreInfo(coder_semaphore);
 509   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderCompare);
 510   coder_map[i]=(char *) NULL;
 511   *number_coders=(size_t) i;
 512   return(coder_map);
 513 }
 514 \f
 515 /*
 516 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 517 %                                                                             %
 518 %                                                                             %
 519 %                                                                             %
 520 +   I n i t i a l i z e C o d e r L i s t                                     %
 521 %                                                                             %
 522 %                                                                             %
 523 %                                                                             %
 524 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 525 %
 526 %  InitializeCoderList() initializes the coder list.
 527 %
 528 %  The format of the InitializeCoderList method is:
 529 %
 530 %      MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 531 %
 532 %  A description of each parameter follows.
 533 %
 534 %    o exception: return any errors or warnings in this structure.
 535 %
 536 */
 537 static MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 538 {
 539   if ((coder_list == (SplayTreeInfo *) NULL) &&
 540       (instantiate_coder == MagickFalse))
 541     {
 542       if (coder_semaphore == (SemaphoreInfo *) NULL)
 543         AcquireSemaphoreInfo(&coder_semaphore);
 544       LockSemaphoreInfo(coder_semaphore);
 545       if ((coder_list == (SplayTreeInfo *) NULL) &&
 546           (instantiate_coder == MagickFalse))
 547         {
 548           (void) LoadCoderLists(MagickCoderFilename,exception);
 549           instantiate_coder=MagickTrue;
 550         }
 551       UnlockSemaphoreInfo(coder_semaphore);
 552     }
 553   return(coder_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse);
 554 }
 555 \f
 556 /*
 557 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 558 %                                                                             %
 559 %                                                                             %
 560 %                                                                             %
 561 %  L i s t C o d e r I n f o                                                  %
 562 %                                                                             %
 563 %                                                                             %
 564 %                                                                             %
 565 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 566 %
 567 %  ListCoderInfo() lists the coder info to a file.
 568 %
 569 %  The format of the ListCoderInfo coder is:
 570 %
 571 %      MagickBooleanType ListCoderInfo(FILE *file,ExceptionInfo *exception)
 572 %
 573 %  A description of each parameter follows.
 574 %
 575 %    o file:  An pointer to a FILE.
 576 %
 577 %    o exception: return any errors or warnings in this structure.
 578 %
 579 */
 580 MagickExport MagickBooleanType ListCoderInfo(FILE *file,
 581   ExceptionInfo *exception)
 582 {
 583   const char
 584     *path;
 585
 586   const CoderInfo
 587     **coder_info;
 588
 589   register ssize_t
 590     i;
 591
 592   size_t
 593     number_coders;
 594
 595   ssize_t
 596     j;
 597
 598   if (file == (const FILE *) NULL)
 599     file=stdout;
 600   coder_info=GetCoderInfoList("*",&number_coders,exception);
 601   if (coder_info == (const CoderInfo **) NULL)
 602     return(MagickFalse);
 603   path=(const char *) NULL;
 604   for (i=0; i < (ssize_t) number_coders; i++)
 605   {
 606     if (coder_info[i]->stealth != MagickFalse)
 607       continue;
 608     if ((path == (const char *) NULL) ||
 609         (LocaleCompare(path,coder_info[i]->path) != 0))
 610       {
 611         if (coder_info[i]->path != (char *) NULL)
 612           (void) FormatLocaleFile(file,"\nPath: %s\n\n",coder_info[i]->path);
 613         (void) FormatLocaleFile(file,"Magick      Coder\n");
 614         (void) FormatLocaleFile(file,
 615           "-------------------------------------------------"
 616           "------------------------------\n");
 617       }
 618     path=coder_info[i]->path;
 619     (void) FormatLocaleFile(file,"%s",coder_info[i]->magick);
 620     for (j=(ssize_t) strlen(coder_info[i]->magick); j <= 11; j++)
 621       (void) FormatLocaleFile(file," ");
 622     if (coder_info[i]->name != (char *) NULL)
 623       (void) FormatLocaleFile(file,"%s",coder_info[i]->name);
 624     (void) FormatLocaleFile(file,"\n");
 625   }
 626   coder_info=(const CoderInfo **) RelinquishMagickMemory((void *) coder_info);
 627   (void) fflush(file);
 628   return(MagickTrue);
 629 }
 630 \f
 631 /*
 632 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 633 %                                                                             %
 634 %                                                                             %
 635 %                                                                             %
 636 +   L o a d C o d e r L i s t                                                 %
 637 %                                                                             %
 638 %                                                                             %
 639 %                                                                             %
 640 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 641 %
 642 %  LoadCoderList() loads the coder configuration file which provides a
 643 %  mapping between coder attributes and a coder name.
 644 %
 645 %  The format of the LoadCoderList coder is:
 646 %
 647 %      MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 648 %        const size_t depth,ExceptionInfo *exception)
 649 %
 650 %  A description of each parameter follows:
 651 %
 652 %    o xml:  The coder list in XML format.
 653 %
 654 %    o filename:  The coder list filename.
 655 %
 656 %    o depth: depth of <include /> statements.
 657 %
 658 %    o exception: return any errors or warnings in this structure.
 659 %
 660 */
 661
 662 static void *DestroyCoderNode(void *coder_info)
 663 {
 664   register CoderInfo
 665     *p;
 666
 667   p=(CoderInfo *) coder_info;
 668   if (p->exempt == MagickFalse)
 669     {
 670       if (p->path != (char *) NULL)
 671         p->path=DestroyString(p->path);
 672       if (p->name != (char *) NULL)
 673         p->name=DestroyString(p->name);
 674       if (p->magick != (char *) NULL)
 675         p->magick=DestroyString(p->magick);
 676     }
 677   return(RelinquishMagickMemory(p));
 678 }
 679
 680 static MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 681   const size_t depth,ExceptionInfo *exception)
 682 {
 683   char
 684     keyword[MaxTextExtent],
 685     *token;
 686
 687   const char
 688     *q;
 689
 690   CoderInfo
 691     *coder_info;
 692
 693   MagickBooleanType
 694     status;
 695
 696   /*
 697     Load the coder map file.
 698   */
 699   (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
 700     "Loading coder configuration file \"%s\" ...",filename);
 701   if (xml == (const char *) NULL)
 702     return(MagickFalse);
 703   if (coder_list == (SplayTreeInfo *) NULL)
 704     {
 705       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 706         DestroyCoderNode);
 707       if (coder_list == (SplayTreeInfo *) NULL)
 708         {
 709           ThrowFileException(exception,ResourceLimitError,
 710             "MemoryAllocationFailed",filename);
 711           return(MagickFalse);
 712         }
 713     }
 714   status=MagickTrue;
 715   coder_info=(CoderInfo *) NULL;
 716   token=AcquireString(xml);
 717   for (q=(char *) xml; *q != '\0'; )
 718   {
 719     /*
 720       Interpret XML.
 721     */
 722     GetMagickToken(q,&q,token);
 723     if (*token == '\0')
 724       break;
 725     (void) CopyMagickString(keyword,token,MaxTextExtent);
 726     if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
 727       {
 728         /*
 729           Doctype element.
 730         */
 731         while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
 732           GetMagickToken(q,&q,token);
 733         continue;
 734       }
 735     if (LocaleNCompare(keyword,"<!--",4) == 0)
 736       {
 737         /*
 738           Comment element.
 739         */
 740         while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
 741           GetMagickToken(q,&q,token);
 742         continue;
 743       }
 744     if (LocaleCompare(keyword,"<include") == 0)
 745       {
 746         /*
 747           Include element.
 748         */
 749         while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
 750         {
 751           (void) CopyMagickString(keyword,token,MaxTextExtent);
 752           GetMagickToken(q,&q,token);
 753           if (*token != '=')
 754             continue;
 755           GetMagickToken(q,&q,token);
 756           if (LocaleCompare(keyword,"file") == 0)
 757             {
 758               if (depth > 200)
 759                 (void) ThrowMagickException(exception,GetMagickModule(),
 760                   ConfigureError,"IncludeNodeNestedTooDeeply","`%s'",token);
 761               else
 762                 {
 763                   char
 764                     path[MaxTextExtent],
 765                     *xml;
 766
 767                   GetPathComponent(filename,HeadPath,path);
 768                   if (*path != '\0')
 769                     (void) ConcatenateMagickString(path,DirectorySeparator,
 770                       MaxTextExtent);
 771                   if (*token == *DirectorySeparator)
 772                     (void) CopyMagickString(path,token,MaxTextExtent);
 773                   else
 774                     (void) ConcatenateMagickString(path,token,MaxTextExtent);
 775                   xml=FileToString(path,~0UL,exception);
 776                   if (xml != (char *) NULL)
 777                     {
 778                       status=LoadCoderList(xml,path,depth+1,exception);
 779                       xml=(char *) RelinquishMagickMemory(xml);
 780                     }
 781                 }
 782             }
 783         }
 784         continue;
 785       }
 786     if (LocaleCompare(keyword,"<coder") == 0)
 787       {
 788         /*
 789           Coder element.
 790         */
 791         coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 792         if (coder_info == (CoderInfo *) NULL)
 793           ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
 794         (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 795         coder_info->path=ConstantString(filename);
 796         coder_info->exempt=MagickFalse;
 797         coder_info->signature=MagickSignature;
 798         continue;
 799       }
 800     if (coder_info == (CoderInfo *) NULL)
 801       continue;
 802     if (LocaleCompare(keyword,"/>") == 0)
 803       {
 804         status=AddValueToSplayTree(coder_list,ConstantString(
 805           coder_info->magick),coder_info);
 806         if (status == MagickFalse)
 807           (void) ThrowMagickException(exception,GetMagickModule(),
 808             ResourceLimitError,"MemoryAllocationFailed","`%s'",
 809             coder_info->magick);
 810         coder_info=(CoderInfo *) NULL;
 811       }
 812     GetMagickToken(q,(const char **) NULL,token);
 813     if (*token != '=')
 814       continue;
 815     GetMagickToken(q,&q,token);
 816     GetMagickToken(q,&q,token);
 817     switch (*keyword)
 818     {
 819       case 'M':
 820       case 'm':
 821       {
 822         if (LocaleCompare((char *) keyword,"magick") == 0)
 823           {
 824             coder_info->magick=ConstantString(token);
 825             break;
 826           }
 827         break;
 828       }
 829       case 'N':
 830       case 'n':
 831       {
 832         if (LocaleCompare((char *) keyword,"name") == 0)
 833           {
 834             coder_info->name=ConstantString(token);
 835             break;
 836           }
 837         break;
 838       }
 839       case 'S':
 840       case 's':
 841       {
 842         if (LocaleCompare((char *) keyword,"stealth") == 0)
 843           {
 844             coder_info->stealth=IsStringTrue(token);
 845             break;
 846           }
 847         break;
 848       }
 849       default:
 850         break;
 851     }
 852   }
 853   token=(char *) RelinquishMagickMemory(token);
 854   return(status);
 855 }
 856 \f
 857 /*
 858 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 859 %                                                                             %
 860 %                                                                             %
 861 %                                                                             %
 862 %  L o a d C o d e r L i s t s                                                %
 863 %                                                                             %
 864 %                                                                             %
 865 %                                                                             %
 866 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 867 %
 868 %  LoadCoderLists() loads one or more coder configuration file which
 869 %  provides a mapping between coder attributes and a coder name.
 870 %
 871 %  The format of the LoadCoderLists coder is:
 872 %
 873 %      MagickBooleanType LoadCoderLists(const char *filename,
 874 %        ExceptionInfo *exception)
 875 %
 876 %  A description of each parameter follows:
 877 %
 878 %    o filename: the font file name.
 879 %
 880 %    o exception: return any errors or warnings in this structure.
 881 %
 882 */
 883 static MagickBooleanType LoadCoderLists(const char *filename,
 884   ExceptionInfo *exception)
 885 {
 886   const StringInfo
 887     *option;
 888
 889   LinkedListInfo
 890     *options;
 891
 892   MagickStatusType
 893     status;
 894
 895   register ssize_t
 896     i;
 897
 898   /*
 899     Load external coder map.
 900   */
 901   if (coder_list == (SplayTreeInfo *) NULL)
 902     {
 903       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 904         DestroyCoderNode);
 905       if (coder_list == (SplayTreeInfo *) NULL)
 906         {
 907           ThrowFileException(exception,ResourceLimitError,
 908             "MemoryAllocationFailed",filename);
 909           return(MagickFalse);
 910         }
 911     }
 912   status=MagickTrue;
 913   options=GetConfigureOptions(filename,exception);
 914   option=(const StringInfo *) GetNextValueInLinkedList(options);
 915   while (option != (const StringInfo *) NULL)
 916   {
 917     status&=LoadCoderList((const char *) GetStringInfoDatum(option),
 918       GetStringInfoPath(option),0,exception);
 919     option=(const StringInfo *) GetNextValueInLinkedList(options);
 920   }
 921   options=DestroyConfigureOptions(options);
 922   /*
 923     Load built-in coder map.
 924   */
 925   for (i=0; i < (ssize_t) (sizeof(CoderMap)/sizeof(*CoderMap)); i++)
 926   {
 927     CoderInfo
 928       *coder_info;
 929
 930     register const CoderMapInfo
 931       *p;
 932
 933     p=CoderMap+i;
 934     coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 935     if (coder_info == (CoderInfo *) NULL)
 936       {
 937         (void) ThrowMagickException(exception,GetMagickModule(),
 938           ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 939         continue;
 940       }
 941     (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 942     coder_info->path=(char *) "[built-in]";
 943     coder_info->magick=(char *) p->magick;
 944     coder_info->name=(char *) p->name;
 945     coder_info->exempt=MagickTrue;
 946     coder_info->signature=MagickSignature;
 947     status&=AddValueToSplayTree(coder_list,ConstantString(coder_info->magick),
 948       coder_info);
 949     if (status == MagickFalse)
 950       (void) ThrowMagickException(exception,GetMagickModule(),
 951         ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 952   }
 953   return(status != 0 ? MagickTrue : MagickFalse);
 954 }