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

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                   CCCC   OOO   DDDD    EEEEE  RRRR                          %
   7 %                  C      O   O  D   D   E      R   R                         %
   8 %                  C      O   O  D   D   EEE    RRRR                          %
   9 %                  C      O   O  D   D   E      R R                           %
  10 %                   CCCC   OOO   DDDD    EEEEE  R  R                          %
  11 %                                                                             %
  12 %                                                                             %
  13 %                     MagickCore Image Coder Methods                          %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John Cristy                                  %
  17 %                                 May 2001                                    %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2013 ImageMagick Studio LLC, a non-profit organization      %
  21 %  dedicated to making software imaging solutions freely available.           %
  22 %                                                                             %
  23 %  You may not use this file except in compliance with the License.  You may  %
  24 %  obtain a copy of the License at                                            %
  25 %                                                                             %
  26 %    http://www.imagemagick.org/script/license.php                            %
  27 %                                                                             %
  28 %  Unless required by applicable law or agreed to in writing, software        %
  29 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  30 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  31 %  See the License for the specific language governing permissions and        %
  32 %  limitations under the License.                                             %
  33 %                                                                             %
  34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 %
  36 %
  37 */
  38 \f
  39 /*
  40   Include declarations.
  41 */
  42 #include "MagickCore/studio.h"
  43 #include "MagickCore/blob.h"
  44 #include "MagickCore/client.h"
  45 #include "MagickCore/coder.h"
  46 #include "MagickCore/coder-private.h"
  47 #include "MagickCore/configure.h"
  48 #include "MagickCore/draw.h"
  49 #include "MagickCore/exception.h"
  50 #include "MagickCore/exception-private.h"
  51 #include "MagickCore/hashmap.h"
  52 #include "MagickCore/log.h"
  53 #include "MagickCore/memory_.h"
  54 #include "MagickCore/option.h"
  55 #include "MagickCore/semaphore.h"
  56 #include "MagickCore/string_.h"
  57 #include "MagickCore/splay-tree.h"
  58 #include "MagickCore/token.h"
  59 #include "MagickCore/utility.h"
  60 #include "MagickCore/utility-private.h"
  61 #include "MagickCore/xml-tree.h"
  62 \f
  63 /*
  64   Define declarations.
  65 */
  66 #define MagickCoderFilename  "coder.xml"
  67 \f
  68 /*
  69   Typedef declarations.
  70 */
  71 typedef struct _CoderMapInfo
  72 {
  73   const char
  74     *magick,
  75     *name;
  76 } CoderMapInfo;
  77 \f
  78 /*
  79   Static declarations.
  80 */
  81 static const CoderMapInfo
  82   CoderMap[] =
  83   {
  84     { "3FR", "DNG" },
  85     { "8BIM", "META" },
  86     { "8BIMTEXT", "META" },
  87     { "8BIMWTEXT", "META" },
  88     { "AFM", "TTF" },
  89     { "A", "RAW" },
  90     { "AI", "PDF" },
  91     { "APP1JPEG", "META" },
  92     { "APP1", "META" },
  93     { "ARW", "DNG" },
  94     { "AVI", "MPEG" },
  95     { "BIE", "JBIG" },
  96     { "BMP2", "BMP" },
  97     { "BMP3", "BMP" },
  98     { "B", "RAW" },
  99     { "BRF", "BRAILLE" },
 100     { "BGRA", "BGR" },
 101     { "CMYKA", "CMYK" },
 102     { "C", "RAW" },
 103     { "CAL", "CALS" },
 104     { "CANVAS", "XC" },
 105     { "CR2", "DNG" },
 106     { "CRW", "DNG" },
 107     { "CUR", "ICON" },
 108     { "DCR", "DNG" },
 109     { "DCX", "PCX" },
 110     { "DFONT", "TTF" },
 111     { "EPDF", "PDF" },
 112     { "EPI", "PS" },
 113     { "EPS2", "PS2" },
 114     { "EPS3", "PS3" },
 115     { "EPSF", "PS" },
 116     { "EPSI", "PS" },
 117     { "EPS", "PS" },
 118     { "EPT2", "EPT" },
 119     { "EPT3", "EPT" },
 120     { "ERF", "DNG" },
 121     { "EXIF", "META" },
 122     { "FILE", "URL" },
 123     { "FRACTAL", "PLASMA" },
 124     { "FTP", "URL" },
 125     { "FTS", "FITS" },
 126     { "G3", "FAX" },
 127     { "GIF87", "GIF" },
 128     { "G", "RAW" },
 129     { "GRANITE", "MAGICK" },
 130     { "GROUP4", "TIFF" },
 131     { "GV", "DOT" },
 132     { "K25", "DNG" },
 133     { "KDC", "DNG" },
 134     { "H", "MAGICK" },
 135     { "HTM", "HTML" },
 136     { "HTTP", "URL" },
 137     { "ICB", "TGA" },
 138     { "ICC", "META" },
 139     { "ICM", "META" },
 140     { "ICO", "ICON" },
 141     { "IMPLICIT", "***" },
 142     { "IPTC", "META" },
 143     { "IPTCTEXT", "META" },
 144     { "IPTCWTEXT", "META" },
 145     { "ISOBRL", "BRAILLE" },
 146     { "JBG", "JBIG" },
 147     { "JNG", "PNG" },
 148     { "JPC", "JP2" },
 149     { "J2C", "JP2" },
 150     { "J2K", "JP2" },
 151     { "JPG", "JPEG" },
 152     { "JPX", "JP2" },
 153     { "K", "RAW" },
 154     { "LOGO", "MAGICK" },
 155     { "M2V", "MPEG" },
 156     { "M4V", "MPEG" },
 157     { "M", "RAW" },
 158     { "MNG", "PNG" },
 159     { "MOV", "MPEG" },
 160     { "MP4", "MPEG" },
 161     { "MPG", "MPEG" },
 162     { "MPRI", "MPR" },
 163     { "MEF", "DNG" },
 164     { "MRW", "DNG" },
 165     { "MSVG", "SVG" },
 166     { "NEF", "DNG" },
 167     { "NETSCAPE", "MAGICK" },
 168     { "NRW", "DNG" },
 169     { "O", "RAW" },
 170     { "ORF", "DNG" },
 171     { "OTF", "TTF" },
 172     { "P7", "PNM" },
 173     { "PAL", "UYVY" },
 174     { "PAM", "PNM" },
 175     { "PBM", "PNM" },
 176     { "PCDS", "PCD" },
 177     { "PDFA", "PDF" },
 178     { "PEF", "DNG" },
 179     { "PEF", "DNG" },
 180     { "PFA", "TTF" },
 181     { "PFB", "TTF" },
 182     { "PFM", "PNM" },
 183     { "PGM", "PNM" },
 184     { "PGX", "JP2" },
 185     { "PICON", "XPM" },
 186     { "PJPEG", "JPEG" },
 187     { "PM", "XPM" },
 188     { "PNG24", "PNG" },
 189     { "PNG32", "PNG" },
 190     { "PNG8", "PNG" },
 191     { "PPM", "PNM" },
 192     { "PSB", "PSD" },
 193     { "PTIF", "TIFF" },
 194     { "RADIAL-GRADIENT", "GRADIENT" },
 195     { "RAF", "DNG" },
 196     { "RAS", "SUN" },
 197     { "RGBA", "RGB" },
 198     { "RGBO", "RGB" },
 199     { "R", "RAW" },
 200     { "ROSE", "MAGICK" },
 201     { "RW2", "DNG" },
 202     { "SHTML", "HTML" },
 203     { "SPARSE-COLOR", "TXT" },
 204     { "SR2", "DNG" },
 205     { "SRF", "DNG" },
 206     { "SVGZ", "SVG" },
 207     { "TEXT", "TXT" },
 208     { "TIFF64", "TIFF" },
 209     { "TIF", "TIFF" },
 210     { "TTC", "TTF" },
 211     { "UBRL", "BRAILLE" },
 212     { "VDA", "TGA" },
 213     { "VST", "TGA" },
 214     { "WIZARD", "MAGICK" },
 215     { "WMV", "MPEG" },
 216     { "WMFWIN32", "EMF" },
 217     { "WMZ", "WMF" },
 218     { "X3f", "DNG" },
 219     { "XMP", "META" },
 220     { "XTRNARRAY", "XTRN" },
 221     { "XTRNBLOB", "XTRN" },
 222     { "XTRNFILE", "XTRN" },
 223     { "XTRNIMAGE", "XTRN" },
 224     { "XV", "VIFF" },
 225     { "Y", "RAW" },
 226     { "YCbCrA", "YCbCr" }
 227  };
 228
 229 static SemaphoreInfo
 230   *coder_semaphore = (SemaphoreInfo *) NULL;
 231
 232 static SplayTreeInfo
 233   *coder_list = (SplayTreeInfo *) NULL;
 234
 235 static volatile MagickBooleanType
 236   instantiate_coder = MagickFalse;
 237 \f
 238 /*
 239   Forward declarations.
 240 */
 241 static MagickBooleanType
 242   InitializeCoderList(ExceptionInfo *),
 243   LoadCoderLists(const char *,ExceptionInfo *);
 244 \f
 245 /*
 246 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 247 %                                                                             %
 248 %                                                                             %
 249 %                                                                             %
 250 +   C o d e r C o m p o n e n t G e n e s i s                                 %
 251 %                                                                             %
 252 %                                                                             %
 253 %                                                                             %
 254 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 255 %
 256 %  CoderComponentGenesis() instantiates the coder component.
 257 %
 258 %  The format of the CoderComponentGenesis method is:
 259 %
 260 %      MagickBooleanType CoderComponentGenesis(void)
 261 %
 262 */
 263 MagickPrivate MagickBooleanType CoderComponentGenesis(void)
 264 {
 265   AcquireSemaphoreInfo(&coder_semaphore);
 266   return(MagickTrue);
 267 }
 268 \f
 269 /*
 270 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 271 %                                                                             %
 272 %                                                                             %
 273 %                                                                             %
 274 +   C o d e r C o m p o n e n t T e r m i n u s                               %
 275 %                                                                             %
 276 %                                                                             %
 277 %                                                                             %
 278 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 279 %
 280 %  CoderComponentTerminus() destroys the coder component.
 281 %
 282 %  The format of the CoderComponentTerminus method is:
 283 %
 284 %      CoderComponentTerminus(void)
 285 %
 286 */
 287 MagickPrivate void CoderComponentTerminus(void)
 288 {
 289   if (coder_semaphore == (SemaphoreInfo *) NULL)
 290     AcquireSemaphoreInfo(&coder_semaphore);
 291   LockSemaphoreInfo(coder_semaphore);
 292   if (coder_list != (SplayTreeInfo *) NULL)
 293     coder_list=DestroySplayTree(coder_list);
 294   instantiate_coder=MagickFalse;
 295   UnlockSemaphoreInfo(coder_semaphore);
 296   DestroySemaphoreInfo(&coder_semaphore);
 297 }
 298 \f
 299 /*
 300 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 301 %                                                                             %
 302 %                                                                             %
 303 %                                                                             %
 304 +   G e t C o d e r I n f o                                                   %
 305 %                                                                             %
 306 %                                                                             %
 307 %                                                                             %
 308 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 309 %
 310 %  GetCoderInfo searches the coder list for the specified name and if found
 311 %  returns attributes for that coder.
 312 %
 313 %  The format of the GetCoderInfo method is:
 314 %
 315 %      const CoderInfo *GetCoderInfo(const char *name,ExceptionInfo *exception)
 316 %
 317 %  A description of each parameter follows:
 318 %
 319 %    o name: the coder name.
 320 %
 321 %    o exception: return any errors or warnings in this structure.
 322 %
 323 */
 324 MagickExport const CoderInfo *GetCoderInfo(const char *name,
 325   ExceptionInfo *exception)
 326 {
 327   assert(exception != (ExceptionInfo *) NULL);
 328   if ((coder_list == (SplayTreeInfo *) NULL) ||
 329       (instantiate_coder == MagickFalse))
 330     if (InitializeCoderList(exception) == MagickFalse)
 331       return((const CoderInfo *) NULL);
 332   if ((coder_list == (SplayTreeInfo *) NULL) ||
 333       (GetNumberOfNodesInSplayTree(coder_list) == 0))
 334     return((const CoderInfo *) NULL);
 335   if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
 336     {
 337       ResetSplayTreeIterator(coder_list);
 338       return((const CoderInfo *) GetNextValueInSplayTree(coder_list));
 339     }
 340   return((const CoderInfo *) GetValueFromSplayTree(coder_list,name));
 341 }
 342 \f
 343 /*
 344 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 345 %                                                                             %
 346 %                                                                             %
 347 %                                                                             %
 348 %   G e t C o d e r I n f o L i s t                                           %
 349 %                                                                             %
 350 %                                                                             %
 351 %                                                                             %
 352 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 353 %
 354 %  GetCoderInfoList() returns any coder_map that match the specified pattern.
 355 %  The format of the GetCoderInfoList function is:
 356 %
 357 %      const CoderInfo **GetCoderInfoList(const char *pattern,
 358 %        size_t *number_coders,ExceptionInfo *exception)
 359 %
 360 %  A description of each parameter follows:
 361 %
 362 %    o pattern: Specifies a pointer to a text string containing a pattern.
 363 %
 364 %    o number_coders:  This integer returns the number of coders in the list.
 365 %
 366 %    o exception: return any errors or warnings in this structure.
 367 %
 368 */
 369
 370 static int CoderInfoCompare(const void *x,const void *y)
 371 {
 372   const CoderInfo
 373     **p,
 374     **q;
 375
 376   p=(const CoderInfo **) x,
 377   q=(const CoderInfo **) y;
 378   if (LocaleCompare((*p)->path,(*q)->path) == 0)
 379     return(LocaleCompare((*p)->name,(*q)->name));
 380   return(LocaleCompare((*p)->path,(*q)->path));
 381 }
 382
 383 MagickExport const CoderInfo **GetCoderInfoList(const char *pattern,
 384   size_t *number_coders,ExceptionInfo *exception)
 385 {
 386   const CoderInfo
 387     **coder_map;
 388
 389   register const CoderInfo
 390     *p;
 391
 392   register ssize_t
 393     i;
 394
 395   /*
 396     Allocate coder list.
 397   */
 398   assert(pattern != (char *) NULL);
 399   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 400   assert(number_coders != (size_t *) NULL);
 401   *number_coders=0;
 402   p=GetCoderInfo("*",exception);
 403   if (p == (const CoderInfo *) NULL)
 404     return((const CoderInfo **) NULL);
 405   coder_map=(const CoderInfo **) AcquireQuantumMemory((size_t)
 406     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 407   if (coder_map == (const CoderInfo **) NULL)
 408     return((const CoderInfo **) NULL);
 409   /*
 410     Generate coder list.
 411   */
 412   LockSemaphoreInfo(coder_semaphore);
 413   ResetSplayTreeIterator(coder_list);
 414   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 415   for (i=0; p != (const CoderInfo *) NULL; )
 416   {
 417     if ((p->stealth == MagickFalse) &&
 418         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 419       coder_map[i++]=p;
 420     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 421   }
 422   UnlockSemaphoreInfo(coder_semaphore);
 423   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderInfoCompare);
 424   coder_map[i]=(CoderInfo *) NULL;
 425   *number_coders=(size_t) i;
 426   return(coder_map);
 427 }
 428 \f
 429 /*
 430 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 431 %                                                                             %
 432 %                                                                             %
 433 %                                                                             %
 434 %   G e t C o d e r L i s t                                                   %
 435 %                                                                             %
 436 %                                                                             %
 437 %                                                                             %
 438 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 439 %
 440 %  GetCoderList() returns any coder_map that match the specified pattern.
 441 %
 442 %  The format of the GetCoderList function is:
 443 %
 444 %      char **GetCoderList(const char *pattern,size_t *number_coders,
 445 %        ExceptionInfo *exception)
 446 %
 447 %  A description of each parameter follows:
 448 %
 449 %    o pattern: Specifies a pointer to a text string containing a pattern.
 450 %
 451 %    o number_coders:  This integer returns the number of coders in the list.
 452 %
 453 %    o exception: return any errors or warnings in this structure.
 454 %
 455 */
 456
 457 static int CoderCompare(const void *x,const void *y)
 458 {
 459   register const char
 460     **p,
 461     **q;
 462
 463   p=(const char **) x;
 464   q=(const char **) y;
 465   return(LocaleCompare(*p,*q));
 466 }
 467
 468 MagickExport char **GetCoderList(const char *pattern,
 469   size_t *number_coders,ExceptionInfo *exception)
 470 {
 471   char
 472     **coder_map;
 473
 474   register const CoderInfo
 475     *p;
 476
 477   register ssize_t
 478     i;
 479
 480   /*
 481     Allocate coder list.
 482   */
 483   assert(pattern != (char *) NULL);
 484   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 485   assert(number_coders != (size_t *) NULL);
 486   *number_coders=0;
 487   p=GetCoderInfo("*",exception);
 488   if (p == (const CoderInfo *) NULL)
 489     return((char **) NULL);
 490   coder_map=(char **) AcquireQuantumMemory((size_t)
 491     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 492   if (coder_map == (char **) NULL)
 493     return((char **) NULL);
 494   /*
 495     Generate coder list.
 496   */
 497   LockSemaphoreInfo(coder_semaphore);
 498   ResetSplayTreeIterator(coder_list);
 499   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 500   for (i=0; p != (const CoderInfo *) NULL; )
 501   {
 502     if ((p->stealth == MagickFalse) &&
 503         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 504       coder_map[i++]=ConstantString(p->name);
 505     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 506   }
 507   UnlockSemaphoreInfo(coder_semaphore);
 508   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderCompare);
 509   coder_map[i]=(char *) NULL;
 510   *number_coders=(size_t) i;
 511   return(coder_map);
 512 }
 513 \f
 514 /*
 515 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 516 %                                                                             %
 517 %                                                                             %
 518 %                                                                             %
 519 +   I n i t i a l i z e C o d e r L i s t                                     %
 520 %                                                                             %
 521 %                                                                             %
 522 %                                                                             %
 523 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 524 %
 525 %  InitializeCoderList() initializes the coder list.
 526 %
 527 %  The format of the InitializeCoderList method is:
 528 %
 529 %      MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 530 %
 531 %  A description of each parameter follows.
 532 %
 533 %    o exception: return any errors or warnings in this structure.
 534 %
 535 */
 536 static MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 537 {
 538   if ((coder_list == (SplayTreeInfo *) NULL) &&
 539       (instantiate_coder == MagickFalse))
 540     {
 541       if (coder_semaphore == (SemaphoreInfo *) NULL)
 542         AcquireSemaphoreInfo(&coder_semaphore);
 543       LockSemaphoreInfo(coder_semaphore);
 544       if ((coder_list == (SplayTreeInfo *) NULL) &&
 545           (instantiate_coder == MagickFalse))
 546         {
 547           (void) LoadCoderLists(MagickCoderFilename,exception);
 548           instantiate_coder=MagickTrue;
 549         }
 550       UnlockSemaphoreInfo(coder_semaphore);
 551     }
 552   return(coder_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse);
 553 }
 554 \f
 555 /*
 556 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 557 %                                                                             %
 558 %                                                                             %
 559 %                                                                             %
 560 %  L i s t C o d e r I n f o                                                  %
 561 %                                                                             %
 562 %                                                                             %
 563 %                                                                             %
 564 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 565 %
 566 %  ListCoderInfo() lists the coder info to a file.
 567 %
 568 %  The format of the ListCoderInfo coder is:
 569 %
 570 %      MagickBooleanType ListCoderInfo(FILE *file,ExceptionInfo *exception)
 571 %
 572 %  A description of each parameter follows.
 573 %
 574 %    o file:  An pointer to a FILE.
 575 %
 576 %    o exception: return any errors or warnings in this structure.
 577 %
 578 */
 579 MagickExport MagickBooleanType ListCoderInfo(FILE *file,
 580   ExceptionInfo *exception)
 581 {
 582   const char
 583     *path;
 584
 585   const CoderInfo
 586     **coder_info;
 587
 588   register ssize_t
 589     i;
 590
 591   size_t
 592     number_coders;
 593
 594   ssize_t
 595     j;
 596
 597   if (file == (const FILE *) NULL)
 598     file=stdout;
 599   coder_info=GetCoderInfoList("*",&number_coders,exception);
 600   if (coder_info == (const CoderInfo **) NULL)
 601     return(MagickFalse);
 602   path=(const char *) NULL;
 603   for (i=0; i < (ssize_t) number_coders; i++)
 604   {
 605     if (coder_info[i]->stealth != MagickFalse)
 606       continue;
 607     if ((path == (const char *) NULL) ||
 608         (LocaleCompare(path,coder_info[i]->path) != 0))
 609       {
 610         if (coder_info[i]->path != (char *) NULL)
 611           (void) FormatLocaleFile(file,"\nPath: %s\n\n",coder_info[i]->path);
 612         (void) FormatLocaleFile(file,"Magick      Coder\n");
 613         (void) FormatLocaleFile(file,
 614           "-------------------------------------------------"
 615           "------------------------------\n");
 616       }
 617     path=coder_info[i]->path;
 618     (void) FormatLocaleFile(file,"%s",coder_info[i]->magick);
 619     for (j=(ssize_t) strlen(coder_info[i]->magick); j <= 11; j++)
 620       (void) FormatLocaleFile(file," ");
 621     if (coder_info[i]->name != (char *) NULL)
 622       (void) FormatLocaleFile(file,"%s",coder_info[i]->name);
 623     (void) FormatLocaleFile(file,"\n");
 624   }
 625   coder_info=(const CoderInfo **) RelinquishMagickMemory((void *) coder_info);
 626   (void) fflush(file);
 627   return(MagickTrue);
 628 }
 629 \f
 630 /*
 631 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 632 %                                                                             %
 633 %                                                                             %
 634 %                                                                             %
 635 +   L o a d C o d e r L i s t                                                 %
 636 %                                                                             %
 637 %                                                                             %
 638 %                                                                             %
 639 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 640 %
 641 %  LoadCoderList() loads the coder configuration file which provides a
 642 %  mapping between coder attributes and a coder name.
 643 %
 644 %  The format of the LoadCoderList coder is:
 645 %
 646 %      MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 647 %        const size_t depth,ExceptionInfo *exception)
 648 %
 649 %  A description of each parameter follows:
 650 %
 651 %    o xml:  The coder list in XML format.
 652 %
 653 %    o filename:  The coder list filename.
 654 %
 655 %    o depth: depth of <include /> statements.
 656 %
 657 %    o exception: return any errors or warnings in this structure.
 658 %
 659 */
 660
 661 static void *DestroyCoderNode(void *coder_info)
 662 {
 663   register CoderInfo
 664     *p;
 665
 666   p=(CoderInfo *) coder_info;
 667   if (p->exempt == MagickFalse)
 668     {
 669       if (p->path != (char *) NULL)
 670         p->path=DestroyString(p->path);
 671       if (p->name != (char *) NULL)
 672         p->name=DestroyString(p->name);
 673       if (p->magick != (char *) NULL)
 674         p->magick=DestroyString(p->magick);
 675     }
 676   return(RelinquishMagickMemory(p));
 677 }
 678
 679 static MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 680   const size_t depth,ExceptionInfo *exception)
 681 {
 682   char
 683     keyword[MaxTextExtent],
 684     *token;
 685
 686   const char
 687     *q;
 688
 689   CoderInfo
 690     *coder_info;
 691
 692   MagickBooleanType
 693     status;
 694
 695   /*
 696     Load the coder map file.
 697   */
 698   (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
 699     "Loading coder configuration file \"%s\" ...",filename);
 700   if (xml == (const char *) NULL)
 701     return(MagickFalse);
 702   if (coder_list == (SplayTreeInfo *) NULL)
 703     {
 704       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 705         DestroyCoderNode);
 706       if (coder_list == (SplayTreeInfo *) NULL)
 707         {
 708           ThrowFileException(exception,ResourceLimitError,
 709             "MemoryAllocationFailed",filename);
 710           return(MagickFalse);
 711         }
 712     }
 713   status=MagickTrue;
 714   coder_info=(CoderInfo *) NULL;
 715   token=AcquireString(xml);
 716   for (q=(char *) xml; *q != '\0'; )
 717   {
 718     /*
 719       Interpret XML.
 720     */
 721     GetMagickToken(q,&q,token);
 722     if (*token == '\0')
 723       break;
 724     (void) CopyMagickString(keyword,token,MaxTextExtent);
 725     if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
 726       {
 727         /*
 728           Doctype element.
 729         */
 730         while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
 731           GetMagickToken(q,&q,token);
 732         continue;
 733       }
 734     if (LocaleNCompare(keyword,"<!--",4) == 0)
 735       {
 736         /*
 737           Comment element.
 738         */
 739         while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
 740           GetMagickToken(q,&q,token);
 741         continue;
 742       }
 743     if (LocaleCompare(keyword,"<include") == 0)
 744       {
 745         /*
 746           Include element.
 747         */
 748         while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
 749         {
 750           (void) CopyMagickString(keyword,token,MaxTextExtent);
 751           GetMagickToken(q,&q,token);
 752           if (*token != '=')
 753             continue;
 754           GetMagickToken(q,&q,token);
 755           if (LocaleCompare(keyword,"file") == 0)
 756             {
 757               if (depth > 200)
 758                 (void) ThrowMagickException(exception,GetMagickModule(),
 759                   ConfigureError,"IncludeNodeNestedTooDeeply","`%s'",token);
 760               else
 761                 {
 762                   char
 763                     path[MaxTextExtent],
 764                     *xml;
 765
 766                   GetPathComponent(filename,HeadPath,path);
 767                   if (*path != '\0')
 768                     (void) ConcatenateMagickString(path,DirectorySeparator,
 769                       MaxTextExtent);
 770                   if (*token == *DirectorySeparator)
 771                     (void) CopyMagickString(path,token,MaxTextExtent);
 772                   else
 773                     (void) ConcatenateMagickString(path,token,MaxTextExtent);
 774                   xml=FileToString(path,~0,exception);
 775                   if (xml != (char *) NULL)
 776                     {
 777                       status=LoadCoderList(xml,path,depth+1,exception);
 778                       xml=(char *) RelinquishMagickMemory(xml);
 779                     }
 780                 }
 781             }
 782         }
 783         continue;
 784       }
 785     if (LocaleCompare(keyword,"<coder") == 0)
 786       {
 787         /*
 788           Coder element.
 789         */
 790         coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 791         if (coder_info == (CoderInfo *) NULL)
 792           ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
 793         (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 794         coder_info->path=ConstantString(filename);
 795         coder_info->exempt=MagickFalse;
 796         coder_info->signature=MagickSignature;
 797         continue;
 798       }
 799     if (coder_info == (CoderInfo *) NULL)
 800       continue;
 801     if (LocaleCompare(keyword,"/>") == 0)
 802       {
 803         status=AddValueToSplayTree(coder_list,ConstantString(
 804           coder_info->magick),coder_info);
 805         if (status == MagickFalse)
 806           (void) ThrowMagickException(exception,GetMagickModule(),
 807             ResourceLimitError,"MemoryAllocationFailed","`%s'",
 808             coder_info->magick);
 809         coder_info=(CoderInfo *) NULL;
 810       }
 811     GetMagickToken(q,(const char **) NULL,token);
 812     if (*token != '=')
 813       continue;
 814     GetMagickToken(q,&q,token);
 815     GetMagickToken(q,&q,token);
 816     switch (*keyword)
 817     {
 818       case 'M':
 819       case 'm':
 820       {
 821         if (LocaleCompare((char *) keyword,"magick") == 0)
 822           {
 823             coder_info->magick=ConstantString(token);
 824             break;
 825           }
 826         break;
 827       }
 828       case 'N':
 829       case 'n':
 830       {
 831         if (LocaleCompare((char *) keyword,"name") == 0)
 832           {
 833             coder_info->name=ConstantString(token);
 834             break;
 835           }
 836         break;
 837       }
 838       case 'S':
 839       case 's':
 840       {
 841         if (LocaleCompare((char *) keyword,"stealth") == 0)
 842           {
 843             coder_info->stealth=IsStringTrue(token);
 844             break;
 845           }
 846         break;
 847       }
 848       default:
 849         break;
 850     }
 851   }
 852   token=(char *) RelinquishMagickMemory(token);
 853   return(status);
 854 }
 855 \f
 856 /*
 857 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 858 %                                                                             %
 859 %                                                                             %
 860 %                                                                             %
 861 %  L o a d C o d e r L i s t s                                                %
 862 %                                                                             %
 863 %                                                                             %
 864 %                                                                             %
 865 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 866 %
 867 %  LoadCoderLists() loads one or more coder configuration file which
 868 %  provides a mapping between coder attributes and a coder name.
 869 %
 870 %  The format of the LoadCoderLists coder is:
 871 %
 872 %      MagickBooleanType LoadCoderLists(const char *filename,
 873 %        ExceptionInfo *exception)
 874 %
 875 %  A description of each parameter follows:
 876 %
 877 %    o filename: the font file name.
 878 %
 879 %    o exception: return any errors or warnings in this structure.
 880 %
 881 */
 882 static MagickBooleanType LoadCoderLists(const char *filename,
 883   ExceptionInfo *exception)
 884 {
 885   const StringInfo
 886     *option;
 887
 888   LinkedListInfo
 889     *options;
 890
 891   MagickStatusType
 892     status;
 893
 894   register ssize_t
 895     i;
 896
 897   /*
 898     Load built-in coder map.
 899   */
 900   status=MagickFalse;
 901   if (coder_list == (SplayTreeInfo *) NULL)
 902     {
 903       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 904         DestroyCoderNode);
 905       if (coder_list == (SplayTreeInfo *) NULL)
 906         {
 907           ThrowFileException(exception,ResourceLimitError,
 908             "MemoryAllocationFailed",filename);
 909           return(MagickFalse);
 910         }
 911     }
 912   for (i=0; i < (ssize_t) (sizeof(CoderMap)/sizeof(*CoderMap)); i++)
 913   {
 914     CoderInfo
 915       *coder_info;
 916
 917     register const CoderMapInfo
 918       *p;
 919
 920     p=CoderMap+i;
 921     coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 922     if (coder_info == (CoderInfo *) NULL)
 923       {
 924         (void) ThrowMagickException(exception,GetMagickModule(),
 925           ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 926         continue;
 927       }
 928     (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 929     coder_info->path=(char *) "[built-in]";
 930     coder_info->magick=(char *) p->magick;
 931     coder_info->name=(char *) p->name;
 932     coder_info->exempt=MagickTrue;
 933     coder_info->signature=MagickSignature;
 934     status=AddValueToSplayTree(coder_list,ConstantString(coder_info->magick),
 935       coder_info);
 936     if (status == MagickFalse)
 937       (void) ThrowMagickException(exception,GetMagickModule(),
 938         ResourceLimitError,"MemoryAllocationFailed","`%s'",coder_info->name);
 939   }
 940   /*
 941     Load external coder map.
 942   */
 943   options=GetConfigureOptions(filename,exception);
 944   option=(const StringInfo *) GetNextValueInLinkedList(options);
 945   while (option != (const StringInfo *) NULL)
 946   {
 947     status|=LoadCoderList((const char *) GetStringInfoDatum(option),
 948       GetStringInfoPath(option),0,exception);
 949     option=(const StringInfo *) GetNextValueInLinkedList(options);
 950   }
 951   options=DestroyConfigureOptions(options);
 952   return(status != 0 ? MagickTrue : MagickFalse);
 953 }