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   return(MagickTrue);
 260 }
 261 \f
 262 /*
 263 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 264 %                                                                             %
 265 %                                                                             %
 266 %                                                                             %
 267 +   C o d e r C o m p o n e n t T e r m i n u s                               %
 268 %                                                                             %
 269 %                                                                             %
 270 %                                                                             %
 271 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 272 %
 273 %  CoderComponentTerminus() destroys the coder component.
 274 %
 275 %  The format of the CoderComponentTerminus method is:
 276 %
 277 %      CoderComponentTerminus(void)
 278 %
 279 */
 280 MagickExport void CoderComponentTerminus(void)
 281 {
 282   if (coder_semaphore == (SemaphoreInfo *) NULL)
 283     AcquireSemaphoreInfo(&coder_semaphore);
 284   (void) LockSemaphoreInfo(coder_semaphore);
 285   if (coder_list != (SplayTreeInfo *) NULL)
 286     coder_list=DestroySplayTree(coder_list);
 287   instantiate_coder=MagickFalse;
 288   (void) UnlockSemaphoreInfo(coder_semaphore);
 289   DestroySemaphoreInfo(&coder_semaphore);
 290 }
 291 \f
 292 /*
 293 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 294 %                                                                             %
 295 %                                                                             %
 296 %                                                                             %
 297 +   G e t C o d e r I n f o                                                   %
 298 %                                                                             %
 299 %                                                                             %
 300 %                                                                             %
 301 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 302 %
 303 %  GetCoderInfo searches the coder list for the specified name and if found
 304 %  returns attributes for that coder.
 305 %
 306 %  The format of the GetCoderInfo method is:
 307 %
 308 %      const CoderInfo *GetCoderInfo(const char *name,ExceptionInfo *exception)
 309 %
 310 %  A description of each parameter follows:
 311 %
 312 %    o name: the coder name.
 313 %
 314 %    o exception: return any errors or warnings in this structure.
 315 %
 316 */
 317 MagickExport const CoderInfo *GetCoderInfo(const char *name,
 318   ExceptionInfo *exception)
 319 {
 320   assert(exception != (ExceptionInfo *) NULL);
 321   if ((coder_list == (SplayTreeInfo *) NULL) ||
 322       (instantiate_coder == MagickFalse))
 323     if (InitializeCoderList(exception) == MagickFalse)
 324       return((const CoderInfo *) NULL);
 325   if ((coder_list == (SplayTreeInfo *) NULL) ||
 326       (GetNumberOfNodesInSplayTree(coder_list) == 0))
 327     return((const CoderInfo *) NULL);
 328   if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
 329     {
 330       ResetSplayTreeIterator(coder_list);
 331       return((const CoderInfo *) GetNextValueInSplayTree(coder_list));
 332     }
 333   return((const CoderInfo *) GetValueFromSplayTree(coder_list,name));
 334 }
 335 \f
 336 /*
 337 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 338 %                                                                             %
 339 %                                                                             %
 340 %                                                                             %
 341 %   G e t C o d e r I n f o L i s t                                           %
 342 %                                                                             %
 343 %                                                                             %
 344 %                                                                             %
 345 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 346 %
 347 %  GetCoderInfoList() returns any coder_map that match the specified pattern.
 348 %  The format of the GetCoderInfoList function is:
 349 %
 350 %      const CoderInfo **GetCoderInfoList(const char *pattern,
 351 %        unsigned long *number_coders,ExceptionInfo *exception)
 352 %
 353 %  A description of each parameter follows:
 354 %
 355 %    o pattern: Specifies a pointer to a text string containing a pattern.
 356 %
 357 %    o number_coders:  This integer returns the number of coders in the list.
 358 %
 359 %    o exception: return any errors or warnings in this structure.
 360 %
 361 */
 362
 363 static int CoderInfoCompare(const void *x,const void *y)
 364 {
 365   const CoderInfo
 366     **p,
 367     **q;
 368
 369   p=(const CoderInfo **) x,
 370   q=(const CoderInfo **) y;
 371   if (LocaleCompare((*p)->path,(*q)->path) == 0)
 372     return(LocaleCompare((*p)->name,(*q)->name));
 373   return(LocaleCompare((*p)->path,(*q)->path));
 374 }
 375
 376 MagickExport const CoderInfo **GetCoderInfoList(const char *pattern,
 377   unsigned long *number_coders,ExceptionInfo *exception)
 378 {
 379   const CoderInfo
 380     **coder_map;
 381
 382   register const CoderInfo
 383     *p;
 384
 385   register long
 386     i;
 387
 388   /*
 389     Allocate coder list.
 390   */
 391   assert(pattern != (char *) NULL);
 392   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 393   assert(number_coders != (unsigned long *) NULL);
 394   *number_coders=0;
 395   p=GetCoderInfo("*",exception);
 396   if (p == (const CoderInfo *) NULL)
 397     return((const CoderInfo **) NULL);
 398   coder_map=(const CoderInfo **) AcquireQuantumMemory((size_t)
 399     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 400   if (coder_map == (const CoderInfo **) NULL)
 401     return((const CoderInfo **) NULL);
 402   /*
 403     Generate coder list.
 404   */
 405   (void) LockSemaphoreInfo(coder_semaphore);
 406   ResetSplayTreeIterator(coder_list);
 407   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 408   for (i=0; p != (const CoderInfo *) NULL; )
 409   {
 410     if ((p->stealth == MagickFalse) &&
 411         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 412       coder_map[i++]=p;
 413     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 414   }
 415   (void) UnlockSemaphoreInfo(coder_semaphore);
 416   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderInfoCompare);
 417   coder_map[i]=(CoderInfo *) NULL;
 418   *number_coders=(unsigned long) i;
 419   return(coder_map);
 420 }
 421 \f
 422 /*
 423 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 424 %                                                                             %
 425 %                                                                             %
 426 %                                                                             %
 427 %   G e t C o d e r L i s t                                                   %
 428 %                                                                             %
 429 %                                                                             %
 430 %                                                                             %
 431 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 432 %
 433 %  GetCoderList() returns any coder_map that match the specified pattern.
 434 %
 435 %  The format of the GetCoderList function is:
 436 %
 437 %      char **GetCoderList(const char *pattern,unsigned long *number_coders,
 438 %        ExceptionInfo *exception)
 439 %
 440 %  A description of each parameter follows:
 441 %
 442 %    o pattern: Specifies a pointer to a text string containing a pattern.
 443 %
 444 %    o number_coders:  This integer returns the number of coders in the list.
 445 %
 446 %    o exception: return any errors or warnings in this structure.
 447 %
 448 */
 449
 450 static int CoderCompare(const void *x,const void *y)
 451 {
 452   register const char
 453     **p,
 454     **q;
 455
 456   p=(const char **) x;
 457   q=(const char **) y;
 458   return(LocaleCompare(*p,*q));
 459 }
 460
 461 MagickExport char **GetCoderList(const char *pattern,
 462   unsigned long *number_coders,ExceptionInfo *exception)
 463 {
 464   char
 465     **coder_map;
 466
 467   register const CoderInfo
 468     *p;
 469
 470   register long
 471     i;
 472
 473   /*
 474     Allocate coder list.
 475   */
 476   assert(pattern != (char *) NULL);
 477   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 478   assert(number_coders != (unsigned long *) NULL);
 479   *number_coders=0;
 480   p=GetCoderInfo("*",exception);
 481   if (p == (const CoderInfo *) NULL)
 482     return((char **) NULL);
 483   coder_map=(char **) AcquireQuantumMemory((size_t)
 484     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 485   if (coder_map == (char **) NULL)
 486     return((char **) NULL);
 487   /*
 488     Generate coder list.
 489   */
 490   (void) LockSemaphoreInfo(coder_semaphore);
 491   ResetSplayTreeIterator(coder_list);
 492   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 493   for (i=0; p != (const CoderInfo *) NULL; )
 494   {
 495     if ((p->stealth == MagickFalse) &&
 496         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 497       coder_map[i++]=ConstantString(p->name);
 498     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 499   }
 500   (void) UnlockSemaphoreInfo(coder_semaphore);
 501   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderCompare);
 502   coder_map[i]=(char *) NULL;
 503   *number_coders=(unsigned long) i;
 504   return(coder_map);
 505 }
 506 \f
 507 /*
 508 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 509 %                                                                             %
 510 %                                                                             %
 511 %                                                                             %
 512 +   I n i t i a l i z e C o d e r L i s t                                     %
 513 %                                                                             %
 514 %                                                                             %
 515 %                                                                             %
 516 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 517 %
 518 %  InitializeCoderList() initializes the coder list.
 519 %
 520 %  The format of the InitializeCoderList method is:
 521 %
 522 %      MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 523 %
 524 %  A description of each parameter follows.
 525 %
 526 %    o exception: return any errors or warnings in this structure.
 527 %
 528 */
 529 static MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 530 {
 531   if ((coder_list == (SplayTreeInfo *) NULL) &&
 532       (instantiate_coder == MagickFalse))
 533     {
 534       if (coder_semaphore == (SemaphoreInfo *) NULL)
 535         AcquireSemaphoreInfo(&coder_semaphore);
 536       (void) LockSemaphoreInfo(coder_semaphore);
 537       if ((coder_list == (SplayTreeInfo *) NULL) &&
 538           (instantiate_coder == MagickFalse))
 539         {
 540           (void) LoadCoderLists(MagickCoderFilename,exception);
 541           instantiate_coder=MagickTrue;
 542         }
 543       (void) UnlockSemaphoreInfo(coder_semaphore);
 544     }
 545   return(coder_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse);
 546 }
 547 \f
 548 /*
 549 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 550 %                                                                             %
 551 %                                                                             %
 552 %                                                                             %
 553 %  L i s t C o d e r I n f o                                                  %
 554 %                                                                             %
 555 %                                                                             %
 556 %                                                                             %
 557 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 558 %
 559 %  ListCoderInfo() lists the coder info to a file.
 560 %
 561 %  The format of the ListCoderInfo coder is:
 562 %
 563 %      MagickBooleanType ListCoderInfo(FILE *file,ExceptionInfo *exception)
 564 %
 565 %  A description of each parameter follows.
 566 %
 567 %    o file:  An pointer to a FILE.
 568 %
 569 %    o exception: return any errors or warnings in this structure.
 570 %
 571 */
 572 MagickExport MagickBooleanType ListCoderInfo(FILE *file,
 573   ExceptionInfo *exception)
 574 {
 575   const char
 576     *path;
 577
 578   const CoderInfo
 579     **coder_info;
 580
 581   long
 582     j;
 583
 584   register long
 585     i;
 586
 587   unsigned long
 588     number_coders;
 589
 590   if (file == (const FILE *) NULL)
 591     file=stdout;
 592   coder_info=GetCoderInfoList("*",&number_coders,exception);
 593   if (coder_info == (const CoderInfo **) NULL)
 594     return(MagickFalse);
 595   path=(const char *) NULL;
 596   for (i=0; i < (long) number_coders; i++)
 597   {
 598     if (coder_info[i]->stealth != MagickFalse)
 599       continue;
 600     if ((path == (const char *) NULL) ||
 601         (LocaleCompare(path,coder_info[i]->path) != 0))
 602       {
 603         if (coder_info[i]->path != (char *) NULL)
 604           (void) fprintf(file,"\nPath: %s\n\n",coder_info[i]->path);
 605         (void) fprintf(file,"Magick      Coder\n");
 606         (void) fprintf(file,"-------------------------------------------------"
 607           "------------------------------\n");
 608       }
 609     path=coder_info[i]->path;
 610     (void) fprintf(file,"%s",coder_info[i]->magick);
 611     for (j=(long) strlen(coder_info[i]->magick); j <= 11; j++)
 612       (void) fprintf(file," ");
 613     if (coder_info[i]->name != (char *) NULL)
 614       (void) fprintf(file,"%s",coder_info[i]->name);
 615     (void) fprintf(file,"\n");
 616   }
 617   coder_info=(const CoderInfo **) RelinquishMagickMemory((void *) coder_info);
 618   (void) fflush(file);
 619   return(MagickTrue);
 620 }
 621 \f
 622 /*
 623 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 624 %                                                                             %
 625 %                                                                             %
 626 %                                                                             %
 627 +   L o a d C o d e r L i s t                                                 %
 628 %                                                                             %
 629 %                                                                             %
 630 %                                                                             %
 631 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 632 %
 633 %  LoadCoderList() loads the coder configuration file which provides a
 634 %  mapping between coder attributes and a coder name.
 635 %
 636 %  The format of the LoadCoderList coder is:
 637 %
 638 %      MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 639 %        const unsigned long depth,ExceptionInfo *exception)
 640 %
 641 %  A description of each parameter follows:
 642 %
 643 %    o xml:  The coder list in XML format.
 644 %
 645 %    o filename:  The coder list filename.
 646 %
 647 %    o depth: depth of <include /> statements.
 648 %
 649 %    o exception: return any errors or warnings in this structure.
 650 %
 651 */
 652
 653 static void *DestroyCoderNode(void *coder_info)
 654 {
 655   register CoderInfo
 656     *p;
 657
 658   p=(CoderInfo *) coder_info;
 659   if (p->exempt == MagickFalse)
 660     {
 661       if (p->path != (char *) NULL)
 662         p->path=DestroyString(p->path);
 663       if (p->name != (char *) NULL)
 664         p->name=DestroyString(p->name);
 665       if (p->magick != (char *) NULL)
 666         p->magick=DestroyString(p->magick);
 667     }
 668   return(RelinquishMagickMemory(p));
 669 }
 670
 671 static MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 672   const unsigned long depth,ExceptionInfo *exception)
 673 {
 674   char
 675     keyword[MaxTextExtent],
 676     *token;
 677
 678   const char
 679     *q;
 680
 681   CoderInfo
 682     *coder_info;
 683
 684   MagickBooleanType
 685     status;
 686
 687   /*
 688     Load the coder map file.
 689   */
 690   (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
 691     "Loading coder configuration file \"%s\" ...",filename);
 692   if (xml == (const char *) NULL)
 693     return(MagickFalse);
 694   if (coder_list == (SplayTreeInfo *) NULL)
 695     {
 696       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 697         DestroyCoderNode);
 698       if (coder_list == (SplayTreeInfo *) NULL)
 699         {
 700           ThrowFileException(exception,ResourceLimitError,
 701             "MemoryAllocationFailed",filename);
 702           return(MagickFalse);
 703         }
 704     }
 705   status=MagickTrue;
 706   coder_info=(CoderInfo *) NULL;
 707   token=AcquireString(xml);
 708   for (q=(char *) xml; *q != '\0'; )
 709   {
 710     /*
 711       Interpret XML.
 712     */
 713     GetMagickToken(q,&q,token);
 714     if (*token == '\0')
 715       break;
 716     (void) CopyMagickString(keyword,token,MaxTextExtent);
 717     if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
 718       {
 719         /*
 720           Doctype element.
 721         */
 722         while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
 723           GetMagickToken(q,&q,token);
 724         continue;
 725       }
 726     if (LocaleNCompare(keyword,"<!--",4) == 0)
 727       {
 728         /*
 729           Comment element.
 730         */
 731         while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
 732           GetMagickToken(q,&q,token);
 733         continue;
 734       }
 735     if (LocaleCompare(keyword,"<include") == 0)
 736       {
 737         /*
 738           Include element.
 739         */
 740         while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
 741         {
 742           (void) CopyMagickString(keyword,token,MaxTextExtent);
 743           GetMagickToken(q,&q,token);
 744           if (*token != '=')
 745             continue;
 746           GetMagickToken(q,&q,token);
 747           if (LocaleCompare(keyword,"file") == 0)
 748             {
 749               if (depth > 200)
 750                 (void) ThrowMagickException(exception,GetMagickModule(),
 751                   ConfigureError,"IncludeNodeNestedTooDeeply","`%s'",token);
 752               else
 753                 {
 754                   char
 755                     path[MaxTextExtent],
 756                     *xml;
 757
 758                   GetPathComponent(filename,HeadPath,path);
 759                   if (*path != '\0')
 760                     (void) ConcatenateMagickString(path,DirectorySeparator,
 761                       MaxTextExtent);
 762                   if (*token == *DirectorySeparator)
 763                     (void) CopyMagickString(path,token,MaxTextExtent);
 764                   else
 765                     (void) ConcatenateMagickString(path,token,MaxTextExtent);
 766                   xml=FileToString(path,~0,exception);
 767                   if (xml != (char *) NULL)
 768                     {
 769                       status=LoadCoderList(xml,path,depth+1,exception);
 770                       xml=(char *) RelinquishMagickMemory(xml);
 771                     }
 772                 }
 773             }
 774         }
 775         continue;
 776       }
 777     if (LocaleCompare(keyword,"<coder") == 0)
 778       {
 779         /*
 780           Coder element.
 781         */
 782         coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 783         if (coder_info == (CoderInfo *) NULL)
 784           ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
 785         (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 786         coder_info->path=ConstantString(filename);
 787         coder_info->exempt=MagickFalse;
 788         coder_info->signature=MagickSignature;
 789         continue;
 790       }
 791     if (coder_info == (CoderInfo *) NULL)
 792       continue;
 793     if (LocaleCompare(keyword,"/>") == 0)
 794       {
 795         status=AddValueToSplayTree(coder_list,ConstantString(
 796           coder_info->magick),coder_info);
 797         if (status == MagickFalse)
 798           (void) ThrowMagickException(exception,GetMagickModule(),
 799             ResourceLimitError,"MemoryAllocationFailed","`%s'",
 800             coder_info->magick);
 801         coder_info=(CoderInfo *) NULL;
 802       }
 803     GetMagickToken(q,(const char **) NULL,token);
 804     if (*token != '=')
 805       continue;
 806     GetMagickToken(q,&q,token);
 807     GetMagickToken(q,&q,token);
 808     switch (*keyword)
 809     {
 810       case 'M':
 811       case 'm':
 812       {
 813         if (LocaleCompare((char *) keyword,"magick") == 0)
 814           {
 815             coder_info->magick=ConstantString(token);
 816             break;
 817           }
 818         break;
 819       }
 820       case 'N':
 821       case 'n':
 822       {
 823         if (LocaleCompare((char *) keyword,"name") == 0)
 824           {
 825             coder_info->name=ConstantString(token);
 826             break;
 827           }
 828         break;
 829       }
 830       case 'S':
 831       case 's':
 832       {
 833         if (LocaleCompare((char *) keyword,"stealth") == 0)
 834           {
 835             coder_info->stealth=IsMagickTrue(token);
 836             break;
 837           }
 838         break;
 839       }
 840       default:
 841         break;
 842     }
 843   }
 844   token=(char *) RelinquishMagickMemory(token);
 845   return(status);
 846 }
 847 \f
 848 /*
 849 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 850 %                                                                             %
 851 %                                                                             %
 852 %                                                                             %
 853 %  L o a d C o d e r L i s t s                                                %
 854 %                                                                             %
 855 %                                                                             %
 856 %                                                                             %
 857 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 858 %
 859 %  LoadCoderLists() loads one or more coder configuration file which
 860 %  provides a mapping between coder attributes and a coder name.
 861 %
 862 %  The format of the LoadCoderLists coder is:
 863 %
 864 %      MagickBooleanType LoadCoderLists(const char *filename,
 865 %        ExceptionInfo *exception)
 866 %
 867 %  A description of each parameter follows:
 868 %
 869 %    o filename: the font file name.
 870 %
 871 %    o exception: return any errors or warnings in this structure.
 872 %
 873 */
 874 static MagickBooleanType LoadCoderLists(const char *filename,
 875   ExceptionInfo *exception)
 876 {
 877   const StringInfo
 878     *option;
 879
 880   LinkedListInfo
 881     *options;
 882
 883   MagickStatusType
 884     status;
 885
 886   register long
 887     i;
 888
 889   /*
 890     Load built-in coder map.
 891   */
 892   status=MagickFalse;
 893   if (coder_list == (SplayTreeInfo *) NULL)
 894     {
 895       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 896         DestroyCoderNode);
 897       if (coder_list == (SplayTreeInfo *) NULL)
 898         {
 899           ThrowFileException(exception,ResourceLimitError,
 900             "MemoryAllocationFailed",filename);
 901           return(MagickFalse);
 902         }
 903     }
 904   for (i=0; i < (long) (sizeof(CoderMap)/sizeof(*CoderMap)); i++)
 905   {
 906     CoderInfo
 907       *coder_info;
 908
 909     register const CoderMapInfo
 910       *p;
 911
 912     p=CoderMap+i;
 913     coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 914     if (coder_info == (CoderInfo *) NULL)
 915       {
 916         (void) ThrowMagickException(exception,GetMagickModule(),
 917           ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 918         continue;
 919       }
 920     (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 921     coder_info->path=(char *) "[built-in]";
 922     coder_info->magick=(char *) p->magick;
 923     coder_info->name=(char *) p->name;
 924     coder_info->exempt=MagickTrue;
 925     coder_info->signature=MagickSignature;
 926     status=AddValueToSplayTree(coder_list,ConstantString(coder_info->magick),
 927       coder_info);
 928     if (status == MagickFalse)
 929       (void) ThrowMagickException(exception,GetMagickModule(),
 930         ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 931   }
 932   /*
 933     Load external coder map.
 934   */
 935   options=GetConfigureOptions(filename,exception);
 936   option=(const StringInfo *) GetNextValueInLinkedList(options);
 937   while (option != (const StringInfo *) NULL)
 938   {
 939     status|=LoadCoderList((const char *) GetStringInfoDatum(option),
 940       GetStringInfoPath(option),0,exception);
 941     option=(const StringInfo *) GetNextValueInLinkedList(options);
 942   }
 943   options=DestroyConfigureOptions(options);
 944   return(status != 0 ? MagickTrue : MagickFalse);
 945 }