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 %                                John Cristy                                  %
  17 %                                 May 2001                                    %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2011 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     { "K25", "DNG" },
 132     { "KDC", "DNG" },
 133     { "H", "MAGICK" },
 134     { "HTM", "HTML" },
 135     { "HTTP", "URL" },
 136     { "ICB", "TGA" },
 137     { "ICC", "META" },
 138     { "ICM", "META" },
 139     { "ICO", "ICON" },
 140     { "IMPLICIT", "***" },
 141     { "IPTC", "META" },
 142     { "IPTCTEXT", "META" },
 143     { "IPTCWTEXT", "META" },
 144     { "ISOBRL", "BRAILLE" },
 145     { "JBG", "JBIG" },
 146     { "JNG", "PNG" },
 147     { "JPC", "JP2" },
 148     { "J2C", "JP2" },
 149     { "JPG", "JPEG" },
 150     { "JPX", "JP2" },
 151     { "K", "RAW" },
 152     { "LOGO", "MAGICK" },
 153     { "M2V", "MPEG" },
 154     { "M4V", "MPEG" },
 155     { "M", "RAW" },
 156     { "MNG", "PNG" },
 157     { "MOV", "MPEG" },
 158     { "MP4", "MPEG" },
 159     { "MPG", "MPEG" },
 160     { "MPRI", "MPR" },
 161     { "MRW", "DNG" },
 162     { "MSVG", "SVG" },
 163     { "NEF", "DNG" },
 164     { "NETSCAPE", "MAGICK" },
 165     { "O", "RAW" },
 166     { "ORF", "DNG" },
 167     { "OTF", "TTF" },
 168     { "P7", "PNM" },
 169     { "PAL", "UYVY" },
 170     { "PAM", "PNM" },
 171     { "PBM", "PNM" },
 172     { "PCDS", "PCD" },
 173     { "PDFA", "PDF" },
 174     { "PEF", "DNG" },
 175     { "PEF", "DNG" },
 176     { "PFA", "TTF" },
 177     { "PFB", "TTF" },
 178     { "PFM", "PNM" },
 179     { "PGM", "PNM" },
 180     { "PGX", "JP2" },
 181     { "PICON", "XPM" },
 182     { "PJPEG", "JPEG" },
 183     { "PM", "XPM" },
 184     { "PNG24", "PNG" },
 185     { "PNG32", "PNG" },
 186     { "PNG8", "PNG" },
 187     { "PPM", "PNM" },
 188     { "PSB", "PSD" },
 189     { "PTIF", "TIFF" },
 190     { "RADIAL-GRADIENT", "GRADIENT" },
 191     { "RAF", "DNG" },
 192     { "RAS", "SUN" },
 193     { "RGBA", "RGB" },
 194     { "RGBO", "RGB" },
 195     { "R", "RAW" },
 196     { "ROSE", "MAGICK" },
 197     { "SHTML", "HTML" },
 198     { "SR2", "DNG" },
 199     { "SRF", "DNG" },
 200     { "SVGZ", "SVG" },
 201     { "TEXT", "TXT" },
 202     { "TIFF64", "TIFF" },
 203     { "TIF", "TIFF" },
 204     { "TTC", "TTF" },
 205     { "UBRL", "BRAILLE" },
 206     { "VDA", "TGA" },
 207     { "VST", "TGA" },
 208     { "WIZARD", "MAGICK" },
 209     { "WMV", "MPEG" },
 210     { "WMFWIN32", "EMF" },
 211     { "WMZ", "WMF" },
 212     { "X3f", "DNG" },
 213     { "XMP", "META" },
 214     { "XTRNARRAY", "XTRN" },
 215     { "XTRNBLOB", "XTRN" },
 216     { "XTRNFILE", "XTRN" },
 217     { "XTRNIMAGE", "XTRN" },
 218     { "XV", "VIFF" },
 219     { "Y", "RAW" },
 220     { "YCbCrA", "YCbCr" }
 221  };
 222
 223 static SemaphoreInfo
 224   *coder_semaphore = (SemaphoreInfo *) NULL;
 225
 226 static SplayTreeInfo
 227   *coder_list = (SplayTreeInfo *) NULL;
 228
 229 static volatile MagickBooleanType
 230   instantiate_coder = MagickFalse;
 231 \f
 232 /*
 233   Forward declarations.
 234 */
 235 static MagickBooleanType
 236   InitializeCoderList(ExceptionInfo *),
 237   LoadCoderLists(const char *,ExceptionInfo *);
 238 \f
 239 /*
 240 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 241 %                                                                             %
 242 %                                                                             %
 243 %                                                                             %
 244 +   C o d e r C o m p o n e n t G e n e s i s                                 %
 245 %                                                                             %
 246 %                                                                             %
 247 %                                                                             %
 248 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 249 %
 250 %  CoderComponentGenesis() instantiates the coder component.
 251 %
 252 %  The format of the CoderComponentGenesis method is:
 253 %
 254 %      MagickBooleanType CoderComponentGenesis(void)
 255 %
 256 */
 257 MagickPrivate MagickBooleanType CoderComponentGenesis(void)
 258 {
 259   AcquireSemaphoreInfo(&coder_semaphore);
 260   return(MagickTrue);
 261 }
 262 \f
 263 /*
 264 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 265 %                                                                             %
 266 %                                                                             %
 267 %                                                                             %
 268 +   C o d e r C o m p o n e n t T e r m i n u s                               %
 269 %                                                                             %
 270 %                                                                             %
 271 %                                                                             %
 272 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 273 %
 274 %  CoderComponentTerminus() destroys the coder component.
 275 %
 276 %  The format of the CoderComponentTerminus method is:
 277 %
 278 %      CoderComponentTerminus(void)
 279 %
 280 */
 281 MagickPrivate void CoderComponentTerminus(void)
 282 {
 283   if (coder_semaphore == (SemaphoreInfo *) NULL)
 284     AcquireSemaphoreInfo(&coder_semaphore);
 285   LockSemaphoreInfo(coder_semaphore);
 286   if (coder_list != (SplayTreeInfo *) NULL)
 287     coder_list=DestroySplayTree(coder_list);
 288   instantiate_coder=MagickFalse;
 289   UnlockSemaphoreInfo(coder_semaphore);
 290   DestroySemaphoreInfo(&coder_semaphore);
 291 }
 292 \f
 293 /*
 294 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 295 %                                                                             %
 296 %                                                                             %
 297 %                                                                             %
 298 +   G e t C o d e r I n f o                                                   %
 299 %                                                                             %
 300 %                                                                             %
 301 %                                                                             %
 302 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 303 %
 304 %  GetCoderInfo searches the coder list for the specified name and if found
 305 %  returns attributes for that coder.
 306 %
 307 %  The format of the GetCoderInfo method is:
 308 %
 309 %      const CoderInfo *GetCoderInfo(const char *name,ExceptionInfo *exception)
 310 %
 311 %  A description of each parameter follows:
 312 %
 313 %    o name: the coder name.
 314 %
 315 %    o exception: return any errors or warnings in this structure.
 316 %
 317 */
 318 MagickExport const CoderInfo *GetCoderInfo(const char *name,
 319   ExceptionInfo *exception)
 320 {
 321   assert(exception != (ExceptionInfo *) NULL);
 322   if ((coder_list == (SplayTreeInfo *) NULL) ||
 323       (instantiate_coder == MagickFalse))
 324     if (InitializeCoderList(exception) == MagickFalse)
 325       return((const CoderInfo *) NULL);
 326   if ((coder_list == (SplayTreeInfo *) NULL) ||
 327       (GetNumberOfNodesInSplayTree(coder_list) == 0))
 328     return((const CoderInfo *) NULL);
 329   if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
 330     {
 331       ResetSplayTreeIterator(coder_list);
 332       return((const CoderInfo *) GetNextValueInSplayTree(coder_list));
 333     }
 334   return((const CoderInfo *) GetValueFromSplayTree(coder_list,name));
 335 }
 336 \f
 337 /*
 338 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 339 %                                                                             %
 340 %                                                                             %
 341 %                                                                             %
 342 %   G e t C o d e r I n f o L i s t                                           %
 343 %                                                                             %
 344 %                                                                             %
 345 %                                                                             %
 346 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 347 %
 348 %  GetCoderInfoList() returns any coder_map that match the specified pattern.
 349 %  The format of the GetCoderInfoList function is:
 350 %
 351 %      const CoderInfo **GetCoderInfoList(const char *pattern,
 352 %        size_t *number_coders,ExceptionInfo *exception)
 353 %
 354 %  A description of each parameter follows:
 355 %
 356 %    o pattern: Specifies a pointer to a text string containing a pattern.
 357 %
 358 %    o number_coders:  This integer returns the number of coders in the list.
 359 %
 360 %    o exception: return any errors or warnings in this structure.
 361 %
 362 */
 363
 364 static int CoderInfoCompare(const void *x,const void *y)
 365 {
 366   const CoderInfo
 367     **p,
 368     **q;
 369
 370   p=(const CoderInfo **) x,
 371   q=(const CoderInfo **) y;
 372   if (LocaleCompare((*p)->path,(*q)->path) == 0)
 373     return(LocaleCompare((*p)->name,(*q)->name));
 374   return(LocaleCompare((*p)->path,(*q)->path));
 375 }
 376
 377 MagickExport const CoderInfo **GetCoderInfoList(const char *pattern,
 378   size_t *number_coders,ExceptionInfo *exception)
 379 {
 380   const CoderInfo
 381     **coder_map;
 382
 383   register const CoderInfo
 384     *p;
 385
 386   register ssize_t
 387     i;
 388
 389   /*
 390     Allocate coder list.
 391   */
 392   assert(pattern != (char *) NULL);
 393   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 394   assert(number_coders != (size_t *) NULL);
 395   *number_coders=0;
 396   p=GetCoderInfo("*",exception);
 397   if (p == (const CoderInfo *) NULL)
 398     return((const CoderInfo **) NULL);
 399   coder_map=(const CoderInfo **) AcquireQuantumMemory((size_t)
 400     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 401   if (coder_map == (const CoderInfo **) NULL)
 402     return((const CoderInfo **) NULL);
 403   /*
 404     Generate coder list.
 405   */
 406   LockSemaphoreInfo(coder_semaphore);
 407   ResetSplayTreeIterator(coder_list);
 408   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 409   for (i=0; p != (const CoderInfo *) NULL; )
 410   {
 411     if ((p->stealth == MagickFalse) &&
 412         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 413       coder_map[i++]=p;
 414     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 415   }
 416   UnlockSemaphoreInfo(coder_semaphore);
 417   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderInfoCompare);
 418   coder_map[i]=(CoderInfo *) NULL;
 419   *number_coders=(size_t) i;
 420   return(coder_map);
 421 }
 422 \f
 423 /*
 424 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 425 %                                                                             %
 426 %                                                                             %
 427 %                                                                             %
 428 %   G e t C o d e r L i s t                                                   %
 429 %                                                                             %
 430 %                                                                             %
 431 %                                                                             %
 432 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 433 %
 434 %  GetCoderList() returns any coder_map that match the specified pattern.
 435 %
 436 %  The format of the GetCoderList function is:
 437 %
 438 %      char **GetCoderList(const char *pattern,size_t *number_coders,
 439 %        ExceptionInfo *exception)
 440 %
 441 %  A description of each parameter follows:
 442 %
 443 %    o pattern: Specifies a pointer to a text string containing a pattern.
 444 %
 445 %    o number_coders:  This integer returns the number of coders in the list.
 446 %
 447 %    o exception: return any errors or warnings in this structure.
 448 %
 449 */
 450
 451 static int CoderCompare(const void *x,const void *y)
 452 {
 453   register const char
 454     **p,
 455     **q;
 456
 457   p=(const char **) x;
 458   q=(const char **) y;
 459   return(LocaleCompare(*p,*q));
 460 }
 461
 462 MagickExport char **GetCoderList(const char *pattern,
 463   size_t *number_coders,ExceptionInfo *exception)
 464 {
 465   char
 466     **coder_map;
 467
 468   register const CoderInfo
 469     *p;
 470
 471   register ssize_t
 472     i;
 473
 474   /*
 475     Allocate coder list.
 476   */
 477   assert(pattern != (char *) NULL);
 478   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 479   assert(number_coders != (size_t *) NULL);
 480   *number_coders=0;
 481   p=GetCoderInfo("*",exception);
 482   if (p == (const CoderInfo *) NULL)
 483     return((char **) NULL);
 484   coder_map=(char **) AcquireQuantumMemory((size_t)
 485     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 486   if (coder_map == (char **) NULL)
 487     return((char **) NULL);
 488   /*
 489     Generate coder list.
 490   */
 491   LockSemaphoreInfo(coder_semaphore);
 492   ResetSplayTreeIterator(coder_list);
 493   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 494   for (i=0; p != (const CoderInfo *) NULL; )
 495   {
 496     if ((p->stealth == MagickFalse) &&
 497         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 498       coder_map[i++]=ConstantString(p->name);
 499     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 500   }
 501   UnlockSemaphoreInfo(coder_semaphore);
 502   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderCompare);
 503   coder_map[i]=(char *) NULL;
 504   *number_coders=(size_t) i;
 505   return(coder_map);
 506 }
 507 \f
 508 /*
 509 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 510 %                                                                             %
 511 %                                                                             %
 512 %                                                                             %
 513 +   I n i t i a l i z e C o d e r L i s t                                     %
 514 %                                                                             %
 515 %                                                                             %
 516 %                                                                             %
 517 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 518 %
 519 %  InitializeCoderList() initializes the coder list.
 520 %
 521 %  The format of the InitializeCoderList method is:
 522 %
 523 %      MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 524 %
 525 %  A description of each parameter follows.
 526 %
 527 %    o exception: return any errors or warnings in this structure.
 528 %
 529 */
 530 static MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 531 {
 532   if ((coder_list == (SplayTreeInfo *) NULL) &&
 533       (instantiate_coder == MagickFalse))
 534     {
 535       if (coder_semaphore == (SemaphoreInfo *) NULL)
 536         AcquireSemaphoreInfo(&coder_semaphore);
 537       LockSemaphoreInfo(coder_semaphore);
 538       if ((coder_list == (SplayTreeInfo *) NULL) &&
 539           (instantiate_coder == MagickFalse))
 540         {
 541           (void) LoadCoderLists(MagickCoderFilename,exception);
 542           instantiate_coder=MagickTrue;
 543         }
 544       UnlockSemaphoreInfo(coder_semaphore);
 545     }
 546   return(coder_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse);
 547 }
 548 \f
 549 /*
 550 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 551 %                                                                             %
 552 %                                                                             %
 553 %                                                                             %
 554 %  L i s t C o d e r I n f o                                                  %
 555 %                                                                             %
 556 %                                                                             %
 557 %                                                                             %
 558 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 559 %
 560 %  ListCoderInfo() lists the coder info to a file.
 561 %
 562 %  The format of the ListCoderInfo coder is:
 563 %
 564 %      MagickBooleanType ListCoderInfo(FILE *file,ExceptionInfo *exception)
 565 %
 566 %  A description of each parameter follows.
 567 %
 568 %    o file:  An pointer to a FILE.
 569 %
 570 %    o exception: return any errors or warnings in this structure.
 571 %
 572 */
 573 MagickExport MagickBooleanType ListCoderInfo(FILE *file,
 574   ExceptionInfo *exception)
 575 {
 576   const char
 577     *path;
 578
 579   const CoderInfo
 580     **coder_info;
 581
 582   register ssize_t
 583     i;
 584
 585   size_t
 586     number_coders;
 587
 588   ssize_t
 589     j;
 590
 591   if (file == (const FILE *) NULL)
 592     file=stdout;
 593   coder_info=GetCoderInfoList("*",&number_coders,exception);
 594   if (coder_info == (const CoderInfo **) NULL)
 595     return(MagickFalse);
 596   path=(const char *) NULL;
 597   for (i=0; i < (ssize_t) number_coders; i++)
 598   {
 599     if (coder_info[i]->stealth != MagickFalse)
 600       continue;
 601     if ((path == (const char *) NULL) ||
 602         (LocaleCompare(path,coder_info[i]->path) != 0))
 603       {
 604         if (coder_info[i]->path != (char *) NULL)
 605           (void) FormatLocaleFile(file,"\nPath: %s\n\n",coder_info[i]->path);
 606         (void) FormatLocaleFile(file,"Magick      Coder\n");
 607         (void) FormatLocaleFile(file,
 608           "-------------------------------------------------"
 609           "------------------------------\n");
 610       }
 611     path=coder_info[i]->path;
 612     (void) FormatLocaleFile(file,"%s",coder_info[i]->magick);
 613     for (j=(ssize_t) strlen(coder_info[i]->magick); j <= 11; j++)
 614       (void) FormatLocaleFile(file," ");
 615     if (coder_info[i]->name != (char *) NULL)
 616       (void) FormatLocaleFile(file,"%s",coder_info[i]->name);
 617     (void) FormatLocaleFile(file,"\n");
 618   }
 619   coder_info=(const CoderInfo **) RelinquishMagickMemory((void *) coder_info);
 620   (void) fflush(file);
 621   return(MagickTrue);
 622 }
 623 \f
 624 /*
 625 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 626 %                                                                             %
 627 %                                                                             %
 628 %                                                                             %
 629 +   L o a d C o d e r L i s t                                                 %
 630 %                                                                             %
 631 %                                                                             %
 632 %                                                                             %
 633 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 634 %
 635 %  LoadCoderList() loads the coder configuration file which provides a
 636 %  mapping between coder attributes and a coder name.
 637 %
 638 %  The format of the LoadCoderList coder is:
 639 %
 640 %      MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 641 %        const size_t depth,ExceptionInfo *exception)
 642 %
 643 %  A description of each parameter follows:
 644 %
 645 %    o xml:  The coder list in XML format.
 646 %
 647 %    o filename:  The coder list filename.
 648 %
 649 %    o depth: depth of <include /> statements.
 650 %
 651 %    o exception: return any errors or warnings in this structure.
 652 %
 653 */
 654
 655 static void *DestroyCoderNode(void *coder_info)
 656 {
 657   register CoderInfo
 658     *p;
 659
 660   p=(CoderInfo *) coder_info;
 661   if (p->exempt == MagickFalse)
 662     {
 663       if (p->path != (char *) NULL)
 664         p->path=DestroyString(p->path);
 665       if (p->name != (char *) NULL)
 666         p->name=DestroyString(p->name);
 667       if (p->magick != (char *) NULL)
 668         p->magick=DestroyString(p->magick);
 669     }
 670   return(RelinquishMagickMemory(p));
 671 }
 672
 673 static MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 674   const size_t depth,ExceptionInfo *exception)
 675 {
 676   char
 677     keyword[MaxTextExtent],
 678     *token;
 679
 680   const char
 681     *q;
 682
 683   CoderInfo
 684     *coder_info;
 685
 686   MagickBooleanType
 687     status;
 688
 689   /*
 690     Load the coder map file.
 691   */
 692   (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
 693     "Loading coder configuration file \"%s\" ...",filename);
 694   if (xml == (const char *) NULL)
 695     return(MagickFalse);
 696   if (coder_list == (SplayTreeInfo *) NULL)
 697     {
 698       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 699         DestroyCoderNode);
 700       if (coder_list == (SplayTreeInfo *) NULL)
 701         {
 702           ThrowFileException(exception,ResourceLimitError,
 703             "MemoryAllocationFailed",filename);
 704           return(MagickFalse);
 705         }
 706     }
 707   status=MagickTrue;
 708   coder_info=(CoderInfo *) NULL;
 709   token=AcquireString(xml);
 710   for (q=(char *) xml; *q != '\0'; )
 711   {
 712     /*
 713       Interpret XML.
 714     */
 715     GetMagickToken(q,&q,token);
 716     if (*token == '\0')
 717       break;
 718     (void) CopyMagickString(keyword,token,MaxTextExtent);
 719     if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
 720       {
 721         /*
 722           Doctype element.
 723         */
 724         while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
 725           GetMagickToken(q,&q,token);
 726         continue;
 727       }
 728     if (LocaleNCompare(keyword,"<!--",4) == 0)
 729       {
 730         /*
 731           Comment element.
 732         */
 733         while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
 734           GetMagickToken(q,&q,token);
 735         continue;
 736       }
 737     if (LocaleCompare(keyword,"<include") == 0)
 738       {
 739         /*
 740           Include element.
 741         */
 742         while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
 743         {
 744           (void) CopyMagickString(keyword,token,MaxTextExtent);
 745           GetMagickToken(q,&q,token);
 746           if (*token != '=')
 747             continue;
 748           GetMagickToken(q,&q,token);
 749           if (LocaleCompare(keyword,"file") == 0)
 750             {
 751               if (depth > 200)
 752                 (void) ThrowMagickException(exception,GetMagickModule(),
 753                   ConfigureError,"IncludeNodeNestedTooDeeply","`%s'",token);
 754               else
 755                 {
 756                   char
 757                     path[MaxTextExtent],
 758                     *xml;
 759
 760                   GetPathComponent(filename,HeadPath,path);
 761                   if (*path != '\0')
 762                     (void) ConcatenateMagickString(path,DirectorySeparator,
 763                       MaxTextExtent);
 764                   if (*token == *DirectorySeparator)
 765                     (void) CopyMagickString(path,token,MaxTextExtent);
 766                   else
 767                     (void) ConcatenateMagickString(path,token,MaxTextExtent);
 768                   xml=FileToString(path,~0,exception);
 769                   if (xml != (char *) NULL)
 770                     {
 771                       status=LoadCoderList(xml,path,depth+1,exception);
 772                       xml=(char *) RelinquishMagickMemory(xml);
 773                     }
 774                 }
 775             }
 776         }
 777         continue;
 778       }
 779     if (LocaleCompare(keyword,"<coder") == 0)
 780       {
 781         /*
 782           Coder element.
 783         */
 784         coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 785         if (coder_info == (CoderInfo *) NULL)
 786           ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
 787         (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 788         coder_info->path=ConstantString(filename);
 789         coder_info->exempt=MagickFalse;
 790         coder_info->signature=MagickSignature;
 791         continue;
 792       }
 793     if (coder_info == (CoderInfo *) NULL)
 794       continue;
 795     if (LocaleCompare(keyword,"/>") == 0)
 796       {
 797         status=AddValueToSplayTree(coder_list,ConstantString(
 798           coder_info->magick),coder_info);
 799         if (status == MagickFalse)
 800           (void) ThrowMagickException(exception,GetMagickModule(),
 801             ResourceLimitError,"MemoryAllocationFailed","`%s'",
 802             coder_info->magick);
 803         coder_info=(CoderInfo *) NULL;
 804       }
 805     GetMagickToken(q,(const char **) NULL,token);
 806     if (*token != '=')
 807       continue;
 808     GetMagickToken(q,&q,token);
 809     GetMagickToken(q,&q,token);
 810     switch (*keyword)
 811     {
 812       case 'M':
 813       case 'm':
 814       {
 815         if (LocaleCompare((char *) keyword,"magick") == 0)
 816           {
 817             coder_info->magick=ConstantString(token);
 818             break;
 819           }
 820         break;
 821       }
 822       case 'N':
 823       case 'n':
 824       {
 825         if (LocaleCompare((char *) keyword,"name") == 0)
 826           {
 827             coder_info->name=ConstantString(token);
 828             break;
 829           }
 830         break;
 831       }
 832       case 'S':
 833       case 's':
 834       {
 835         if (LocaleCompare((char *) keyword,"stealth") == 0)
 836           {
 837             coder_info->stealth=IsMagickTrue(token);
 838             break;
 839           }
 840         break;
 841       }
 842       default:
 843         break;
 844     }
 845   }
 846   token=(char *) RelinquishMagickMemory(token);
 847   return(status);
 848 }
 849 \f
 850 /*
 851 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 852 %                                                                             %
 853 %                                                                             %
 854 %                                                                             %
 855 %  L o a d C o d e r L i s t s                                                %
 856 %                                                                             %
 857 %                                                                             %
 858 %                                                                             %
 859 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 860 %
 861 %  LoadCoderLists() loads one or more coder configuration file which
 862 %  provides a mapping between coder attributes and a coder name.
 863 %
 864 %  The format of the LoadCoderLists coder is:
 865 %
 866 %      MagickBooleanType LoadCoderLists(const char *filename,
 867 %        ExceptionInfo *exception)
 868 %
 869 %  A description of each parameter follows:
 870 %
 871 %    o filename: the font file name.
 872 %
 873 %    o exception: return any errors or warnings in this structure.
 874 %
 875 */
 876 static MagickBooleanType LoadCoderLists(const char *filename,
 877   ExceptionInfo *exception)
 878 {
 879   const StringInfo
 880     *option;
 881
 882   LinkedListInfo
 883     *options;
 884
 885   MagickStatusType
 886     status;
 887
 888   register ssize_t
 889     i;
 890
 891   /*
 892     Load built-in coder map.
 893   */
 894   status=MagickFalse;
 895   if (coder_list == (SplayTreeInfo *) NULL)
 896     {
 897       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 898         DestroyCoderNode);
 899       if (coder_list == (SplayTreeInfo *) NULL)
 900         {
 901           ThrowFileException(exception,ResourceLimitError,
 902             "MemoryAllocationFailed",filename);
 903           return(MagickFalse);
 904         }
 905     }
 906   for (i=0; i < (ssize_t) (sizeof(CoderMap)/sizeof(*CoderMap)); i++)
 907   {
 908     CoderInfo
 909       *coder_info;
 910
 911     register const CoderMapInfo
 912       *p;
 913
 914     p=CoderMap+i;
 915     coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 916     if (coder_info == (CoderInfo *) NULL)
 917       {
 918         (void) ThrowMagickException(exception,GetMagickModule(),
 919           ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 920         continue;
 921       }
 922     (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 923     coder_info->path=(char *) "[built-in]";
 924     coder_info->magick=(char *) p->magick;
 925     coder_info->name=(char *) p->name;
 926     coder_info->exempt=MagickTrue;
 927     coder_info->signature=MagickSignature;
 928     status=AddValueToSplayTree(coder_list,ConstantString(coder_info->magick),
 929       coder_info);
 930     if (status == MagickFalse)
 931       (void) ThrowMagickException(exception,GetMagickModule(),
 932         ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 933   }
 934   /*
 935     Load external coder map.
 936   */
 937   options=GetConfigureOptions(filename,exception);
 938   option=(const StringInfo *) GetNextValueInLinkedList(options);
 939   while (option != (const StringInfo *) NULL)
 940   {
 941     status|=LoadCoderList((const char *) GetStringInfoDatum(option),
 942       GetStringInfoPath(option),0,exception);
 943     option=(const StringInfo *) GetNextValueInLinkedList(options);
 944   }
 945   options=DestroyConfigureOptions(options);
 946   return(status != 0 ? MagickTrue : MagickFalse);
 947 }