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 1999-2009 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     { "JPG", "JPEG" },
 148     { "JPX", "JP2" },
 149     { "K", "RAW" },
 150     { "LOGO", "MAGICK" },
 151     { "M2V", "MPEG" },
 152     { "M4V", "MPEG" },
 153     { "M", "RAW" },
 154     { "MNG", "PNG" },
 155     { "MOV", "PNG" },
 156     { "MP4", "MPEG" },
 157     { "MPG", "MPEG" },
 158     { "MPRI", "MPR" },
 159     { "MRW", "DNG" },
 160     { "MSVG", "SVG" },
 161     { "NEF", "DNG" },
 162     { "NETSCAPE", "MAGICK" },
 163     { "O", "RAW" },
 164     { "ORF", "DNG" },
 165     { "OTF", "TTF" },
 166     { "P7", "PNM" },
 167     { "PAL", "UYVY" },
 168     { "PAM", "PNM" },
 169     { "PBM", "PNM" },
 170     { "PCDS", "PCD" },
 171     { "PDFA", "PDF" },
 172     { "PEF", "DNG" },
 173     { "PEF", "DNG" },
 174     { "PFA", "TTF" },
 175     { "PFB", "TTF" },
 176     { "PFM", "PNM" },
 177     { "PGM", "PNM" },
 178     { "PGX", "JP2" },
 179     { "PICON", "XPM" },
 180     { "PJPEG", "JPEG" },
 181     { "PM", "XPM" },
 182     { "PNG24", "PNG" },
 183     { "PNG32", "PNG" },
 184     { "PNG8", "PNG" },
 185     { "PPM", "PNM" },
 186     { "PTIF", "TIFF" },
 187     { "RADIAL-GRADIENT", "GRADIENT" },
 188     { "RAF", "DNG" },
 189     { "RAS", "SUN" },
 190     { "RBG", "RGB" },
 191     { "RGBA", "RGB" },
 192     { "RGBO", "RGB" },
 193     { "R", "RAW" },
 194     { "ROSE", "MAGICK" },
 195     { "SHTML", "HTML" },
 196     { "SR2", "DNG" },
 197     { "SRF", "DNG" },
 198     { "SVGZ", "SVG" },
 199     { "TEXT", "TXT" },
 200     { "TIFF64", "TIFF" },
 201     { "TIF", "TIFF" },
 202     { "TTC", "TTF" },
 203     { "UBRL", "BRAILLE" },
 204     { "VDA", "TGA" },
 205     { "VST", "TGA" },
 206     { "WMV", "MPEG" },
 207     { "WMFWIN32", "EMF" },
 208     { "WMZ", "WMF" },
 209     { "X3f", "DNG" },
 210     { "XMP", "META" },
 211     { "XTRNARRAY", "XTRN" },
 212     { "XTRNBLOB", "XTRN" },
 213     { "XTRNBSTR", "XTRN" },
 214     { "XTRNFILE", "XTRN" },
 215     { "XTRNIMAGE", "XTRN" },
 216     { "XTRNSTREAM", "XTRN" },
 217     { "XV", "VIFF" },
 218     { "Y", "RAW" },
 219     { "YCbCrA", "YCbCr" }
 220  };
 221
 222 static SemaphoreInfo
 223   *coder_semaphore = (SemaphoreInfo *) NULL;
 224
 225 static SplayTreeInfo
 226   *coder_list = (SplayTreeInfo *) NULL;
 227
 228 static volatile MagickBooleanType
 229   instantiate_coder = MagickFalse;
 230 \f
 231 /*
 232   Forward declarations.
 233 */
 234 static MagickBooleanType
 235   InitializeCoderList(ExceptionInfo *),
 236   LoadCoderLists(const char *,ExceptionInfo *);
 237 \f
 238 /*
 239 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 240 %                                                                             %
 241 %                                                                             %
 242 %                                                                             %
 243 +   C o d e r C o m p o n e n t G e n e s i s                                 %
 244 %                                                                             %
 245 %                                                                             %
 246 %                                                                             %
 247 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 248 %
 249 %  CoderComponentGenesis() instantiates the coder component.
 250 %
 251 %  The format of the CoderComponentGenesis method is:
 252 %
 253 %      MagickBooleanType CoderComponentGenesis(void)
 254 %
 255 */
 256 MagickExport MagickBooleanType CoderComponentGenesis(void)
 257 {
 258   AcquireSemaphoreInfo(&coder_semaphore);
 259   RelinquishSemaphoreInfo(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 MagickExport void CoderComponentTerminus(void)
 282 {
 283   AcquireSemaphoreInfo(&coder_semaphore);
 284   if (coder_list != (SplayTreeInfo *) NULL)
 285     coder_list=DestroySplayTree(coder_list);
 286   instantiate_coder=MagickFalse;
 287   RelinquishSemaphoreInfo(coder_semaphore);
 288   DestroySemaphoreInfo(&coder_semaphore);
 289 }
 290 \f
 291 /*
 292 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 293 %                                                                             %
 294 %                                                                             %
 295 %                                                                             %
 296 +   G e t C o d e r I n f o                                                   %
 297 %                                                                             %
 298 %                                                                             %
 299 %                                                                             %
 300 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 301 %
 302 %  GetCoderInfo searches the coder list for the specified name and if found
 303 %  returns attributes for that coder.
 304 %
 305 %  The format of the GetCoderInfo method is:
 306 %
 307 %      const CoderInfo *GetCoderInfo(const char *name,ExceptionInfo *exception)
 308 %
 309 %  A description of each parameter follows:
 310 %
 311 %    o name: the coder name.
 312 %
 313 %    o exception: return any errors or warnings in this structure.
 314 %
 315 */
 316 MagickExport const CoderInfo *GetCoderInfo(const char *name,
 317   ExceptionInfo *exception)
 318 {
 319   assert(exception != (ExceptionInfo *) NULL);
 320   if ((coder_list == (SplayTreeInfo *) NULL) ||
 321       (instantiate_coder == MagickFalse))
 322     if (InitializeCoderList(exception) == MagickFalse)
 323       return((const CoderInfo *) NULL);
 324   if ((coder_list == (SplayTreeInfo *) NULL) ||
 325       (GetNumberOfNodesInSplayTree(coder_list) == 0))
 326     return((const CoderInfo *) NULL);
 327   if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
 328     {
 329       ResetSplayTreeIterator(coder_list);
 330       return((const CoderInfo *) GetNextValueInSplayTree(coder_list));
 331     }
 332   return((const CoderInfo *) GetValueFromSplayTree(coder_list,name));
 333 }
 334 \f
 335 /*
 336 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 337 %                                                                             %
 338 %                                                                             %
 339 %                                                                             %
 340 %   G e t C o d e r I n f o L i s t                                           %
 341 %                                                                             %
 342 %                                                                             %
 343 %                                                                             %
 344 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 345 %
 346 %  GetCoderInfoList() returns any coder_map that match the specified pattern.
 347 %  The format of the GetCoderInfoList function is:
 348 %
 349 %      const CoderInfo **GetCoderInfoList(const char *pattern,
 350 %        unsigned long *number_coders,ExceptionInfo *exception)
 351 %
 352 %  A description of each parameter follows:
 353 %
 354 %    o pattern: Specifies a pointer to a text string containing a pattern.
 355 %
 356 %    o number_coders:  This integer returns the number of coders in the list.
 357 %
 358 %    o exception: return any errors or warnings in this structure.
 359 %
 360 */
 361
 362 static int CoderInfoCompare(const void *x,const void *y)
 363 {
 364   const CoderInfo
 365     **p,
 366     **q;
 367
 368   p=(const CoderInfo **) x,
 369   q=(const CoderInfo **) y;
 370   if (LocaleCompare((*p)->path,(*q)->path) == 0)
 371     return(LocaleCompare((*p)->name,(*q)->name));
 372   return(LocaleCompare((*p)->path,(*q)->path));
 373 }
 374
 375 MagickExport const CoderInfo **GetCoderInfoList(const char *pattern,
 376   unsigned long *number_coders,ExceptionInfo *exception)
 377 {
 378   const CoderInfo
 379     **coder_map;
 380
 381   register const CoderInfo
 382     *p;
 383
 384   register long
 385     i;
 386
 387   /*
 388     Allocate coder list.
 389   */
 390   assert(pattern != (char *) NULL);
 391   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 392   assert(number_coders != (unsigned long *) NULL);
 393   *number_coders=0;
 394   p=GetCoderInfo("*",exception);
 395   if (p == (const CoderInfo *) NULL)
 396     return((const CoderInfo **) NULL);
 397   coder_map=(const CoderInfo **) AcquireQuantumMemory((size_t)
 398     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 399   if (coder_map == (const CoderInfo **) NULL)
 400     return((const CoderInfo **) NULL);
 401   /*
 402     Generate coder list.
 403   */
 404   AcquireSemaphoreInfo(&coder_semaphore);
 405   ResetSplayTreeIterator(coder_list);
 406   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 407   for (i=0; p != (const CoderInfo *) NULL; )
 408   {
 409     if ((p->stealth == MagickFalse) &&
 410         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 411       coder_map[i++]=p;
 412     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 413   }
 414   RelinquishSemaphoreInfo(coder_semaphore);
 415   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderInfoCompare);
 416   coder_map[i]=(CoderInfo *) NULL;
 417   *number_coders=(unsigned long) i;
 418   return(coder_map);
 419 }
 420 \f
 421 /*
 422 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 423 %                                                                             %
 424 %                                                                             %
 425 %                                                                             %
 426 %   G e t C o d e r L i s t                                                   %
 427 %                                                                             %
 428 %                                                                             %
 429 %                                                                             %
 430 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 431 %
 432 %  GetCoderList() returns any coder_map that match the specified pattern.
 433 %
 434 %  The format of the GetCoderList function is:
 435 %
 436 %      char **GetCoderList(const char *pattern,unsigned long *number_coders,
 437 %        ExceptionInfo *exception)
 438 %
 439 %  A description of each parameter follows:
 440 %
 441 %    o pattern: Specifies a pointer to a text string containing a pattern.
 442 %
 443 %    o number_coders:  This integer returns the number of coders in the list.
 444 %
 445 %    o exception: return any errors or warnings in this structure.
 446 %
 447 */
 448
 449 static int CoderCompare(const void *x,const void *y)
 450 {
 451   register const char
 452     **p,
 453     **q;
 454
 455   p=(const char **) x;
 456   q=(const char **) y;
 457   return(LocaleCompare(*p,*q));
 458 }
 459
 460 MagickExport char **GetCoderList(const char *pattern,
 461   unsigned long *number_coders,ExceptionInfo *exception)
 462 {
 463   char
 464     **coder_map;
 465
 466   register const CoderInfo
 467     *p;
 468
 469   register long
 470     i;
 471
 472   /*
 473     Allocate coder list.
 474   */
 475   assert(pattern != (char *) NULL);
 476   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 477   assert(number_coders != (unsigned long *) NULL);
 478   *number_coders=0;
 479   p=GetCoderInfo("*",exception);
 480   if (p == (const CoderInfo *) NULL)
 481     return((char **) NULL);
 482   coder_map=(char **) AcquireQuantumMemory((size_t)
 483     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 484   if (coder_map == (char **) NULL)
 485     return((char **) NULL);
 486   /*
 487     Generate coder list.
 488   */
 489   AcquireSemaphoreInfo(&coder_semaphore);
 490   ResetSplayTreeIterator(coder_list);
 491   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 492   for (i=0; p != (const CoderInfo *) NULL; )
 493   {
 494     if ((p->stealth == MagickFalse) &&
 495         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 496       coder_map[i++]=ConstantString(p->name);
 497     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 498   }
 499   RelinquishSemaphoreInfo(coder_semaphore);
 500   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderCompare);
 501   coder_map[i]=(char *) NULL;
 502   *number_coders=(unsigned long) i;
 503   return(coder_map);
 504 }
 505 \f
 506 /*
 507 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 508 %                                                                             %
 509 %                                                                             %
 510 %                                                                             %
 511 +   I n i t i a l i z e C o d e r L i s t                                     %
 512 %                                                                             %
 513 %                                                                             %
 514 %                                                                             %
 515 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 516 %
 517 %  InitializeCoderList() initializes the coder list.
 518 %
 519 %  The format of the InitializeCoderList method is:
 520 %
 521 %      MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 522 %
 523 %  A description of each parameter follows.
 524 %
 525 %    o exception: return any errors or warnings in this structure.
 526 %
 527 */
 528 static MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 529 {
 530   if ((coder_list == (SplayTreeInfo *) NULL) &&
 531       (instantiate_coder == MagickFalse))
 532     {
 533       AcquireSemaphoreInfo(&coder_semaphore);
 534       if ((coder_list == (SplayTreeInfo *) NULL) &&
 535           (instantiate_coder == MagickFalse))
 536         {
 537           (void) LoadCoderLists(MagickCoderFilename,exception);
 538           instantiate_coder=MagickTrue;
 539         }
 540       RelinquishSemaphoreInfo(coder_semaphore);
 541     }
 542   return(coder_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse);
 543 }
 544 \f
 545 /*
 546 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 547 %                                                                             %
 548 %                                                                             %
 549 %                                                                             %
 550 %  L i s t C o d e r I n f o                                                  %
 551 %                                                                             %
 552 %                                                                             %
 553 %                                                                             %
 554 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 555 %
 556 %  ListCoderInfo() lists the coder info to a file.
 557 %
 558 %  The format of the ListCoderInfo coder is:
 559 %
 560 %      MagickBooleanType ListCoderInfo(FILE *file,ExceptionInfo *exception)
 561 %
 562 %  A description of each parameter follows.
 563 %
 564 %    o file:  An pointer to a FILE.
 565 %
 566 %    o exception: return any errors or warnings in this structure.
 567 %
 568 */
 569 MagickExport MagickBooleanType ListCoderInfo(FILE *file,
 570   ExceptionInfo *exception)
 571 {
 572   const char
 573     *path;
 574
 575   const CoderInfo
 576     **coder_info;
 577
 578   long
 579     j;
 580
 581   register long
 582     i;
 583
 584   unsigned long
 585     number_coders;
 586
 587   if (file == (const FILE *) NULL)
 588     file=stdout;
 589   coder_info=GetCoderInfoList("*",&number_coders,exception);
 590   if (coder_info == (const CoderInfo **) NULL)
 591     return(MagickFalse);
 592   path=(const char *) NULL;
 593   for (i=0; i < (long) number_coders; i++)
 594   {
 595     if (coder_info[i]->stealth != MagickFalse)
 596       continue;
 597     if ((path == (const char *) NULL) ||
 598         (LocaleCompare(path,coder_info[i]->path) != 0))
 599       {
 600         if (coder_info[i]->path != (char *) NULL)
 601           (void) fprintf(file,"\nPath: %s\n\n",coder_info[i]->path);
 602         (void) fprintf(file,"Magick      Coder\n");
 603         (void) fprintf(file,"-------------------------------------------------"
 604           "------------------------------\n");
 605       }
 606     path=coder_info[i]->path;
 607     (void) fprintf(file,"%s",coder_info[i]->magick);
 608     for (j=(long) strlen(coder_info[i]->magick); j <= 11; j++)
 609       (void) fprintf(file," ");
 610     if (coder_info[i]->name != (char *) NULL)
 611       (void) fprintf(file,"%s",coder_info[i]->name);
 612     (void) fprintf(file,"\n");
 613   }
 614   coder_info=(const CoderInfo **) RelinquishMagickMemory((void *) coder_info);
 615   (void) fflush(file);
 616   return(MagickTrue);
 617 }
 618 \f
 619 /*
 620 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 621 %                                                                             %
 622 %                                                                             %
 623 %                                                                             %
 624 +   L o a d C o d e r L i s t                                                 %
 625 %                                                                             %
 626 %                                                                             %
 627 %                                                                             %
 628 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 629 %
 630 %  LoadCoderList() loads the coder configuration file which provides a
 631 %  mapping between coder attributes and a coder name.
 632 %
 633 %  The format of the LoadCoderList coder is:
 634 %
 635 %      MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 636 %        const unsigned long depth,ExceptionInfo *exception)
 637 %
 638 %  A description of each parameter follows:
 639 %
 640 %    o xml:  The coder list in XML format.
 641 %
 642 %    o filename:  The coder list filename.
 643 %
 644 %    o depth: depth of <include /> statements.
 645 %
 646 %    o exception: return any errors or warnings in this structure.
 647 %
 648 */
 649
 650 static void *DestroyCoderNode(void *coder_info)
 651 {
 652   register CoderInfo
 653     *p;
 654
 655   p=(CoderInfo *) coder_info;
 656   if (p->exempt == MagickFalse)
 657     {
 658       if (p->path != (char *) NULL)
 659         p->path=DestroyString(p->path);
 660       if (p->name != (char *) NULL)
 661         p->name=DestroyString(p->name);
 662       if (p->magick != (char *) NULL)
 663         p->magick=DestroyString(p->magick);
 664     }
 665   return(RelinquishMagickMemory(p));
 666 }
 667
 668 static MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 669   const unsigned long depth,ExceptionInfo *exception)
 670 {
 671   char
 672     keyword[MaxTextExtent],
 673     *token;
 674
 675   const char
 676     *q;
 677
 678   CoderInfo
 679     *coder_info;
 680
 681   MagickBooleanType
 682     status;
 683
 684   /*
 685     Load the coder map file.
 686   */
 687   (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
 688     "Loading coder configuration file \"%s\" ...",filename);
 689   if (xml == (const char *) NULL)
 690     return(MagickFalse);
 691   if (coder_list == (SplayTreeInfo *) NULL)
 692     {
 693       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 694         DestroyCoderNode);
 695       if (coder_list == (SplayTreeInfo *) NULL)
 696         {
 697           ThrowFileException(exception,ResourceLimitError,
 698             "MemoryAllocationFailed",filename);
 699           return(MagickFalse);
 700         }
 701     }
 702   status=MagickTrue;
 703   coder_info=(CoderInfo *) NULL;
 704   token=AcquireString(xml);
 705   for (q=(char *) xml; *q != '\0'; )
 706   {
 707     /*
 708       Interpret XML.
 709     */
 710     GetMagickToken(q,&q,token);
 711     if (*token == '\0')
 712       break;
 713     (void) CopyMagickString(keyword,token,MaxTextExtent);
 714     if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
 715       {
 716         /*
 717           Doctype element.
 718         */
 719         while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
 720           GetMagickToken(q,&q,token);
 721         continue;
 722       }
 723     if (LocaleNCompare(keyword,"<!--",4) == 0)
 724       {
 725         /*
 726           Comment element.
 727         */
 728         while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
 729           GetMagickToken(q,&q,token);
 730         continue;
 731       }
 732     if (LocaleCompare(keyword,"<include") == 0)
 733       {
 734         /*
 735           Include element.
 736         */
 737         while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
 738         {
 739           (void) CopyMagickString(keyword,token,MaxTextExtent);
 740           GetMagickToken(q,&q,token);
 741           if (*token != '=')
 742             continue;
 743           GetMagickToken(q,&q,token);
 744           if (LocaleCompare(keyword,"file") == 0)
 745             {
 746               if (depth > 200)
 747                 (void) ThrowMagickException(exception,GetMagickModule(),
 748                   ConfigureError,"IncludeNodeNestedTooDeeply","`%s'",token);
 749               else
 750                 {
 751                   char
 752                     path[MaxTextExtent],
 753                     *xml;
 754
 755                   GetPathComponent(filename,HeadPath,path);
 756                   if (*path != '\0')
 757                     (void) ConcatenateMagickString(path,DirectorySeparator,
 758                       MaxTextExtent);
 759                   if (*token == *DirectorySeparator)
 760                     (void) CopyMagickString(path,token,MaxTextExtent);
 761                   else
 762                     (void) ConcatenateMagickString(path,token,MaxTextExtent);
 763                   xml=FileToString(path,~0,exception);
 764                   if (xml != (char *) NULL)
 765                     {
 766                       status=LoadCoderList(xml,path,depth+1,exception);
 767                       xml=(char *) RelinquishMagickMemory(xml);
 768                     }
 769                 }
 770             }
 771         }
 772         continue;
 773       }
 774     if (LocaleCompare(keyword,"<coder") == 0)
 775       {
 776         /*
 777           Coder element.
 778         */
 779         coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 780         if (coder_info == (CoderInfo *) NULL)
 781           ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
 782         (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 783         coder_info->path=ConstantString(filename);
 784         coder_info->exempt=MagickFalse;
 785         coder_info->signature=MagickSignature;
 786         continue;
 787       }
 788     if (coder_info == (CoderInfo *) NULL)
 789       continue;
 790     if (LocaleCompare(keyword,"/>") == 0)
 791       {
 792         status=AddValueToSplayTree(coder_list,ConstantString(
 793           coder_info->magick),coder_info);
 794         if (status == MagickFalse)
 795           (void) ThrowMagickException(exception,GetMagickModule(),
 796             ResourceLimitError,"MemoryAllocationFailed","`%s'",
 797             coder_info->magick);
 798         coder_info=(CoderInfo *) NULL;
 799       }
 800     GetMagickToken(q,(const char **) NULL,token);
 801     if (*token != '=')
 802       continue;
 803     GetMagickToken(q,&q,token);
 804     GetMagickToken(q,&q,token);
 805     switch (*keyword)
 806     {
 807       case 'M':
 808       case 'm':
 809       {
 810         if (LocaleCompare((char *) keyword,"magick") == 0)
 811           {
 812             coder_info->magick=ConstantString(token);
 813             break;
 814           }
 815         break;
 816       }
 817       case 'N':
 818       case 'n':
 819       {
 820         if (LocaleCompare((char *) keyword,"name") == 0)
 821           {
 822             coder_info->name=ConstantString(token);
 823             break;
 824           }
 825         break;
 826       }
 827       case 'S':
 828       case 's':
 829       {
 830         if (LocaleCompare((char *) keyword,"stealth") == 0)
 831           {
 832             coder_info->stealth=IsMagickTrue(token);
 833             break;
 834           }
 835         break;
 836       }
 837       default:
 838         break;
 839     }
 840   }
 841   token=(char *) RelinquishMagickMemory(token);
 842   return(status);
 843 }
 844 \f
 845 /*
 846 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 847 %                                                                             %
 848 %                                                                             %
 849 %                                                                             %
 850 %  L o a d C o d e r L i s t s                                                %
 851 %                                                                             %
 852 %                                                                             %
 853 %                                                                             %
 854 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 855 %
 856 %  LoadCoderLists() loads one or more coder configuration file which
 857 %  provides a mapping between coder attributes and a coder name.
 858 %
 859 %  The format of the LoadCoderLists coder is:
 860 %
 861 %      MagickBooleanType LoadCoderLists(const char *filename,
 862 %        ExceptionInfo *exception)
 863 %
 864 %  A description of each parameter follows:
 865 %
 866 %    o filename: the font file name.
 867 %
 868 %    o exception: return any errors or warnings in this structure.
 869 %
 870 */
 871 static MagickBooleanType LoadCoderLists(const char *filename,
 872   ExceptionInfo *exception)
 873 {
 874   const StringInfo
 875     *option;
 876
 877   LinkedListInfo
 878     *options;
 879
 880   MagickStatusType
 881     status;
 882
 883   register long
 884     i;
 885
 886   /*
 887     Load built-in coder map.
 888   */
 889   status=MagickFalse;
 890   if (coder_list == (SplayTreeInfo *) NULL)
 891     {
 892       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 893         DestroyCoderNode);
 894       if (coder_list == (SplayTreeInfo *) NULL)
 895         {
 896           ThrowFileException(exception,ResourceLimitError,
 897             "MemoryAllocationFailed",filename);
 898           return(MagickFalse);
 899         }
 900     }
 901   for (i=0; i < (long) (sizeof(CoderMap)/sizeof(*CoderMap)); i++)
 902   {
 903     CoderInfo
 904       *coder_info;
 905
 906     register const CoderMapInfo
 907       *p;
 908
 909     p=CoderMap+i;
 910     coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 911     if (coder_info == (CoderInfo *) NULL)
 912       {
 913         (void) ThrowMagickException(exception,GetMagickModule(),
 914           ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 915         continue;
 916       }
 917     (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 918     coder_info->path=(char *) "[built-in]";
 919     coder_info->magick=(char *) p->magick;
 920     coder_info->name=(char *) p->name;
 921     coder_info->exempt=MagickTrue;
 922     coder_info->signature=MagickSignature;
 923     status=AddValueToSplayTree(coder_list,ConstantString(coder_info->magick),
 924       coder_info);
 925     if (status == MagickFalse)
 926       (void) ThrowMagickException(exception,GetMagickModule(),
 927         ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 928   }
 929   /*
 930     Load external coder map.
 931   */
 932   options=GetConfigureOptions(filename,exception);
 933   option=(const StringInfo *) GetNextValueInLinkedList(options);
 934   while (option != (const StringInfo *) NULL)
 935   {
 936     status|=LoadCoderList((const char *) GetStringInfoDatum(option),
 937       GetStringInfoPath(option),0,exception);
 938     option=(const StringInfo *) GetNextValueInLinkedList(options);
 939   }
 940   options=DestroyConfigureOptions(options);
 941   return(status != 0 ? MagickTrue : MagickFalse);
 942 }