granicus.if.org Git - imagemagick/blob - magick/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 1999-2010 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 "magick/studio.h"
  43 #include "magick/blob.h"
  44 #include "magick/client.h"
  45 #include "magick/coder.h"
  46 #include "magick/configure.h"
  47 #include "magick/draw.h"
  48 #include "magick/exception.h"
  49 #include "magick/exception-private.h"
  50 #include "magick/hashmap.h"
  51 #include "magick/log.h"
  52 #include "magick/memory_.h"
  53 #include "magick/option.h"
  54 #include "magick/semaphore.h"
  55 #include "magick/string_.h"
  56 #include "magick/splay-tree.h"
  57 #include "magick/token.h"
  58 #include "magick/utility.h"
  59 #include "magick/xml-tree.h"
  60 \f
  61 /*
  62   Define declarations.
  63 */
  64 #define MagickCoderFilename  "coder.xml"
  65 \f
  66 /*
  67   Typedef declarations.
  68 */
  69 typedef struct _CoderMapInfo
  70 {
  71   const char
  72     *magick,
  73     *name;
  74 } CoderMapInfo;
  75 \f
  76 /*
  77   Static declarations.
  78 */
  79 static const CoderMapInfo
  80   CoderMap[] =
  81   {
  82     { "3FR", "DNG" },
  83     { "8BIM", "META" },
  84     { "8BIMTEXT", "META" },
  85     { "8BIMWTEXT", "META" },
  86     { "AFM", "TTF" },
  87     { "A", "RAW" },
  88     { "AI", "PDF" },
  89     { "APP1JPEG", "META" },
  90     { "APP1", "META" },
  91     { "ARW", "DNG" },
  92     { "BIE", "JBIG" },
  93     { "BMP2", "BMP" },
  94     { "BMP3", "BMP" },
  95     { "B", "RAW" },
  96     { "BRF", "BRAILLE" },
  97     { "BGR", "RGB" },
  98     { "BRG", "RGB" },
  99     { "CMYKA", "CMYK" },
 100     { "C", "RAW" },
 101     { "CAL", "CALS" },
 102     { "CR2", "DNG" },
 103     { "CRW", "DNG" },
 104     { "CUR", "ICON" },
 105     { "DCR", "DNG" },
 106     { "DCX", "PCX" },
 107     { "DFONT", "TTF" },
 108     { "EPDF", "PDF" },
 109     { "EPI", "PS" },
 110     { "EPS2", "PS2" },
 111     { "EPS3", "PS3" },
 112     { "EPSF", "PS" },
 113     { "EPSI", "PS" },
 114     { "EPS", "PS" },
 115     { "EPT2", "EPT" },
 116     { "EPT3", "EPT" },
 117     { "ERF", "DNG" },
 118     { "EXIF", "META" },
 119     { "FILE", "URL" },
 120     { "FRACTAL", "PLASMA" },
 121     { "FTP", "URL" },
 122     { "FTS", "FITS" },
 123     { "G3", "FAX" },
 124     { "GIF87", "GIF" },
 125     { "G", "RAW" },
 126     { "GBR", "RGB" },
 127     { "GRB", "RGB" },
 128     { "GRANITE", "MAGICK" },
 129     { "GROUP4", "TIFF" },
 130     { "K25", "DNG" },
 131     { "KDC", "DNG" },
 132     { "H", "MAGICK" },
 133     { "HTM", "HTML" },
 134     { "HTTP", "URL" },
 135     { "ICB", "TGA" },
 136     { "ICC", "META" },
 137     { "ICM", "META" },
 138     { "ICO", "ICON" },
 139     { "IMPLICIT", "***" },
 140     { "IPTC", "META" },
 141     { "IPTCTEXT", "META" },
 142     { "IPTCWTEXT", "META" },
 143     { "ISOBRL", "BRAILLE" },
 144     { "JBG", "JBIG" },
 145     { "JNG", "PNG" },
 146     { "JPC", "JP2" },
 147     { "J2C", "JP2" },
 148     { "JPG", "JPEG" },
 149     { "JPX", "JP2" },
 150     { "K", "RAW" },
 151     { "LOGO", "MAGICK" },
 152     { "M2V", "MPEG" },
 153     { "M4V", "MPEG" },
 154     { "M", "RAW" },
 155     { "MNG", "PNG" },
 156     { "MOV", "PNG" },
 157     { "MP4", "MPEG" },
 158     { "MPG", "MPEG" },
 159     { "MPRI", "MPR" },
 160     { "MRW", "DNG" },
 161     { "MSVG", "SVG" },
 162     { "NEF", "DNG" },
 163     { "NETSCAPE", "MAGICK" },
 164     { "O", "RAW" },
 165     { "ORF", "DNG" },
 166     { "OTF", "TTF" },
 167     { "P7", "PNM" },
 168     { "PAL", "UYVY" },
 169     { "PAM", "PNM" },
 170     { "PBM", "PNM" },
 171     { "PCDS", "PCD" },
 172     { "PDFA", "PDF" },
 173     { "PEF", "DNG" },
 174     { "PEF", "DNG" },
 175     { "PFA", "TTF" },
 176     { "PFB", "TTF" },
 177     { "PFM", "PNM" },
 178     { "PGM", "PNM" },
 179     { "PGX", "JP2" },
 180     { "PICON", "XPM" },
 181     { "PJPEG", "JPEG" },
 182     { "PM", "XPM" },
 183     { "PNG24", "PNG" },
 184     { "PNG32", "PNG" },
 185     { "PNG8", "PNG" },
 186     { "PPM", "PNM" },
 187     { "PSB", "PSD" },
 188     { "PTIF", "TIFF" },
 189     { "RADIAL-GRADIENT", "GRADIENT" },
 190     { "RAF", "DNG" },
 191     { "RAS", "SUN" },
 192     { "RBG", "RGB" },
 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     { "WMV", "MPEG" },
 209     { "WMFWIN32", "EMF" },
 210     { "WMZ", "WMF" },
 211     { "X3f", "DNG" },
 212     { "XMP", "META" },
 213     { "XTRNARRAY", "XTRN" },
 214     { "XTRNBLOB", "XTRN" },
 215     { "XTRNBSTR", "XTRN" },
 216     { "XTRNFILE", "XTRN" },
 217     { "XTRNIMAGE", "XTRN" },
 218     { "XTRNSTREAM", "XTRN" },
 219     { "XV", "VIFF" },
 220     { "Y", "RAW" },
 221     { "YCbCrA", "YCbCr" }
 222  };
 223
 224 static SemaphoreInfo
 225   *coder_semaphore = (SemaphoreInfo *) NULL;
 226
 227 static SplayTreeInfo
 228   *coder_list = (SplayTreeInfo *) NULL;
 229
 230 static volatile MagickBooleanType
 231   instantiate_coder = MagickFalse;
 232 \f
 233 /*
 234   Forward declarations.
 235 */
 236 static MagickBooleanType
 237   InitializeCoderList(ExceptionInfo *),
 238   LoadCoderLists(const char *,ExceptionInfo *);
 239 \f
 240 /*
 241 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 242 %                                                                             %
 243 %                                                                             %
 244 %                                                                             %
 245 +   C o d e r C o m p o n e n t G e n e s i s                                 %
 246 %                                                                             %
 247 %                                                                             %
 248 %                                                                             %
 249 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 250 %
 251 %  CoderComponentGenesis() instantiates the coder component.
 252 %
 253 %  The format of the CoderComponentGenesis method is:
 254 %
 255 %      MagickBooleanType CoderComponentGenesis(void)
 256 %
 257 */
 258 MagickExport MagickBooleanType CoderComponentGenesis(void)
 259 {
 260   AcquireSemaphoreInfo(&coder_semaphore);
 261   return(MagickTrue);
 262 }
 263 \f
 264 /*
 265 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 266 %                                                                             %
 267 %                                                                             %
 268 %                                                                             %
 269 +   C o d e r C o m p o n e n t T e r m i n u s                               %
 270 %                                                                             %
 271 %                                                                             %
 272 %                                                                             %
 273 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 274 %
 275 %  CoderComponentTerminus() destroys the coder component.
 276 %
 277 %  The format of the CoderComponentTerminus method is:
 278 %
 279 %      CoderComponentTerminus(void)
 280 %
 281 */
 282 MagickExport void CoderComponentTerminus(void)
 283 {
 284   if (coder_semaphore == (SemaphoreInfo *) NULL)
 285     AcquireSemaphoreInfo(&coder_semaphore);
 286   LockSemaphoreInfo(coder_semaphore);
 287   if (coder_list != (SplayTreeInfo *) NULL)
 288     coder_list=DestroySplayTree(coder_list);
 289   instantiate_coder=MagickFalse;
 290   UnlockSemaphoreInfo(coder_semaphore);
 291   DestroySemaphoreInfo(&coder_semaphore);
 292 }
 293 \f
 294 /*
 295 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 296 %                                                                             %
 297 %                                                                             %
 298 %                                                                             %
 299 +   G e t C o d e r I n f o                                                   %
 300 %                                                                             %
 301 %                                                                             %
 302 %                                                                             %
 303 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 304 %
 305 %  GetCoderInfo searches the coder list for the specified name and if found
 306 %  returns attributes for that coder.
 307 %
 308 %  The format of the GetCoderInfo method is:
 309 %
 310 %      const CoderInfo *GetCoderInfo(const char *name,ExceptionInfo *exception)
 311 %
 312 %  A description of each parameter follows:
 313 %
 314 %    o name: the coder name.
 315 %
 316 %    o exception: return any errors or warnings in this structure.
 317 %
 318 */
 319 MagickExport const CoderInfo *GetCoderInfo(const char *name,
 320   ExceptionInfo *exception)
 321 {
 322   assert(exception != (ExceptionInfo *) NULL);
 323   if ((coder_list == (SplayTreeInfo *) NULL) ||
 324       (instantiate_coder == MagickFalse))
 325     if (InitializeCoderList(exception) == MagickFalse)
 326       return((const CoderInfo *) NULL);
 327   if ((coder_list == (SplayTreeInfo *) NULL) ||
 328       (GetNumberOfNodesInSplayTree(coder_list) == 0))
 329     return((const CoderInfo *) NULL);
 330   if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
 331     {
 332       ResetSplayTreeIterator(coder_list);
 333       return((const CoderInfo *) GetNextValueInSplayTree(coder_list));
 334     }
 335   return((const CoderInfo *) GetValueFromSplayTree(coder_list,name));
 336 }
 337 \f
 338 /*
 339 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 340 %                                                                             %
 341 %                                                                             %
 342 %                                                                             %
 343 %   G e t C o d e r I n f o L i s t                                           %
 344 %                                                                             %
 345 %                                                                             %
 346 %                                                                             %
 347 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 348 %
 349 %  GetCoderInfoList() returns any coder_map that match the specified pattern.
 350 %  The format of the GetCoderInfoList function is:
 351 %
 352 %      const CoderInfo **GetCoderInfoList(const char *pattern,
 353 %        unsigned long *number_coders,ExceptionInfo *exception)
 354 %
 355 %  A description of each parameter follows:
 356 %
 357 %    o pattern: Specifies a pointer to a text string containing a pattern.
 358 %
 359 %    o number_coders:  This integer returns the number of coders in the list.
 360 %
 361 %    o exception: return any errors or warnings in this structure.
 362 %
 363 */
 364
 365 static int CoderInfoCompare(const void *x,const void *y)
 366 {
 367   const CoderInfo
 368     **p,
 369     **q;
 370
 371   p=(const CoderInfo **) x,
 372   q=(const CoderInfo **) y;
 373   if (LocaleCompare((*p)->path,(*q)->path) == 0)
 374     return(LocaleCompare((*p)->name,(*q)->name));
 375   return(LocaleCompare((*p)->path,(*q)->path));
 376 }
 377
 378 MagickExport const CoderInfo **GetCoderInfoList(const char *pattern,
 379   unsigned long *number_coders,ExceptionInfo *exception)
 380 {
 381   const CoderInfo
 382     **coder_map;
 383
 384   register const CoderInfo
 385     *p;
 386
 387   register long
 388     i;
 389
 390   /*
 391     Allocate coder list.
 392   */
 393   assert(pattern != (char *) NULL);
 394   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 395   assert(number_coders != (unsigned long *) NULL);
 396   *number_coders=0;
 397   p=GetCoderInfo("*",exception);
 398   if (p == (const CoderInfo *) NULL)
 399     return((const CoderInfo **) NULL);
 400   coder_map=(const CoderInfo **) AcquireQuantumMemory((size_t)
 401     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 402   if (coder_map == (const CoderInfo **) NULL)
 403     return((const CoderInfo **) NULL);
 404   /*
 405     Generate coder list.
 406   */
 407   LockSemaphoreInfo(coder_semaphore);
 408   ResetSplayTreeIterator(coder_list);
 409   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 410   for (i=0; p != (const CoderInfo *) NULL; )
 411   {
 412     if ((p->stealth == MagickFalse) &&
 413         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 414       coder_map[i++]=p;
 415     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 416   }
 417   UnlockSemaphoreInfo(coder_semaphore);
 418   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderInfoCompare);
 419   coder_map[i]=(CoderInfo *) NULL;
 420   *number_coders=(unsigned long) i;
 421   return(coder_map);
 422 }
 423 \f
 424 /*
 425 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 426 %                                                                             %
 427 %                                                                             %
 428 %                                                                             %
 429 %   G e t C o d e r L i s t                                                   %
 430 %                                                                             %
 431 %                                                                             %
 432 %                                                                             %
 433 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 434 %
 435 %  GetCoderList() returns any coder_map that match the specified pattern.
 436 %
 437 %  The format of the GetCoderList function is:
 438 %
 439 %      char **GetCoderList(const char *pattern,unsigned long *number_coders,
 440 %        ExceptionInfo *exception)
 441 %
 442 %  A description of each parameter follows:
 443 %
 444 %    o pattern: Specifies a pointer to a text string containing a pattern.
 445 %
 446 %    o number_coders:  This integer returns the number of coders in the list.
 447 %
 448 %    o exception: return any errors or warnings in this structure.
 449 %
 450 */
 451
 452 static int CoderCompare(const void *x,const void *y)
 453 {
 454   register const char
 455     **p,
 456     **q;
 457
 458   p=(const char **) x;
 459   q=(const char **) y;
 460   return(LocaleCompare(*p,*q));
 461 }
 462
 463 MagickExport char **GetCoderList(const char *pattern,
 464   unsigned long *number_coders,ExceptionInfo *exception)
 465 {
 466   char
 467     **coder_map;
 468
 469   register const CoderInfo
 470     *p;
 471
 472   register long
 473     i;
 474
 475   /*
 476     Allocate coder list.
 477   */
 478   assert(pattern != (char *) NULL);
 479   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 480   assert(number_coders != (unsigned long *) NULL);
 481   *number_coders=0;
 482   p=GetCoderInfo("*",exception);
 483   if (p == (const CoderInfo *) NULL)
 484     return((char **) NULL);
 485   coder_map=(char **) AcquireQuantumMemory((size_t)
 486     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 487   if (coder_map == (char **) NULL)
 488     return((char **) NULL);
 489   /*
 490     Generate coder list.
 491   */
 492   LockSemaphoreInfo(coder_semaphore);
 493   ResetSplayTreeIterator(coder_list);
 494   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 495   for (i=0; p != (const CoderInfo *) NULL; )
 496   {
 497     if ((p->stealth == MagickFalse) &&
 498         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 499       coder_map[i++]=ConstantString(p->name);
 500     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 501   }
 502   UnlockSemaphoreInfo(coder_semaphore);
 503   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderCompare);
 504   coder_map[i]=(char *) NULL;
 505   *number_coders=(unsigned long) i;
 506   return(coder_map);
 507 }
 508 \f
 509 /*
 510 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 511 %                                                                             %
 512 %                                                                             %
 513 %                                                                             %
 514 +   I n i t i a l i z e C o d e r L i s t                                     %
 515 %                                                                             %
 516 %                                                                             %
 517 %                                                                             %
 518 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 519 %
 520 %  InitializeCoderList() initializes the coder list.
 521 %
 522 %  The format of the InitializeCoderList method is:
 523 %
 524 %      MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 525 %
 526 %  A description of each parameter follows.
 527 %
 528 %    o exception: return any errors or warnings in this structure.
 529 %
 530 */
 531 static MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 532 {
 533   if ((coder_list == (SplayTreeInfo *) NULL) &&
 534       (instantiate_coder == MagickFalse))
 535     {
 536       if (coder_semaphore == (SemaphoreInfo *) NULL)
 537         AcquireSemaphoreInfo(&coder_semaphore);
 538       LockSemaphoreInfo(coder_semaphore);
 539       if ((coder_list == (SplayTreeInfo *) NULL) &&
 540           (instantiate_coder == MagickFalse))
 541         {
 542           (void) LoadCoderLists(MagickCoderFilename,exception);
 543           instantiate_coder=MagickTrue;
 544         }
 545       UnlockSemaphoreInfo(coder_semaphore);
 546     }
 547   return(coder_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse);
 548 }
 549 \f
 550 /*
 551 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 552 %                                                                             %
 553 %                                                                             %
 554 %                                                                             %
 555 %  L i s t C o d e r I n f o                                                  %
 556 %                                                                             %
 557 %                                                                             %
 558 %                                                                             %
 559 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 560 %
 561 %  ListCoderInfo() lists the coder info to a file.
 562 %
 563 %  The format of the ListCoderInfo coder is:
 564 %
 565 %      MagickBooleanType ListCoderInfo(FILE *file,ExceptionInfo *exception)
 566 %
 567 %  A description of each parameter follows.
 568 %
 569 %    o file:  An pointer to a FILE.
 570 %
 571 %    o exception: return any errors or warnings in this structure.
 572 %
 573 */
 574 MagickExport MagickBooleanType ListCoderInfo(FILE *file,
 575   ExceptionInfo *exception)
 576 {
 577   const char
 578     *path;
 579
 580   const CoderInfo
 581     **coder_info;
 582
 583   long
 584     j;
 585
 586   register long
 587     i;
 588
 589   unsigned long
 590     number_coders;
 591
 592   if (file == (const FILE *) NULL)
 593     file=stdout;
 594   coder_info=GetCoderInfoList("*",&number_coders,exception);
 595   if (coder_info == (const CoderInfo **) NULL)
 596     return(MagickFalse);
 597   path=(const char *) NULL;
 598   for (i=0; i < (long) number_coders; i++)
 599   {
 600     if (coder_info[i]->stealth != MagickFalse)
 601       continue;
 602     if ((path == (const char *) NULL) ||
 603         (LocaleCompare(path,coder_info[i]->path) != 0))
 604       {
 605         if (coder_info[i]->path != (char *) NULL)
 606           (void) fprintf(file,"\nPath: %s\n\n",coder_info[i]->path);
 607         (void) fprintf(file,"Magick      Coder\n");
 608         (void) fprintf(file,"-------------------------------------------------"
 609           "------------------------------\n");
 610       }
 611     path=coder_info[i]->path;
 612     (void) fprintf(file,"%s",coder_info[i]->magick);
 613     for (j=(long) strlen(coder_info[i]->magick); j <= 11; j++)
 614       (void) fprintf(file," ");
 615     if (coder_info[i]->name != (char *) NULL)
 616       (void) fprintf(file,"%s",coder_info[i]->name);
 617     (void) fprintf(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 unsigned long 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 unsigned long 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 *) AcquireAlignedMemory(1,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 long
 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 < (long) (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 *) AcquireAlignedMemory(1,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 }