granicus.if.org Git - imagemagick/blob - coders/txt.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                            TTTTT  X   X  TTTTT                              %
   7 %                              T     X X     T                                %
   8 %                              T      X      T                                %
   9 %                              T     X X     T                                %
  10 %                              T    X   X    T                                %
  11 %                                                                             %
  12 %                                                                             %
  13 %                      Render Text Onto A Canvas Image.                       %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John Cristy                                  %
  17 %                                 July 1992                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization      %
  21 %  dedicated to making software imaging solutions freely available.           %
  22 %                                                                             %
  23 %  You may not use this file except in compliance with the License.  You may  %
  24 %  obtain a copy of the License at                                            %
  25 %                                                                             %
  26 %    http://www.imagemagick.org/script/license.php                            %
  27 %                                                                             %
  28 %  Unless required by applicable law or agreed to in writing, software        %
  29 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  30 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  31 %  See the License for the specific language governing permissions and        %
  32 %  limitations under the License.                                             %
  33 %                                                                             %
  34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 %
  36 %
  37 */
  38 \f
  39 /*
  40   Include declarations.
  41 */
  42 #include "magick/studio.h"
  43 #include "magick/annotate.h"
  44 #include "magick/attribute.h"
  45 #include "magick/blob.h"
  46 #include "magick/blob-private.h"
  47 #include "magick/cache.h"
  48 #include "magick/color.h"
  49 #include "magick/color-private.h"
  50 #include "magick/colorspace.h"
  51 #include "magick/constitute.h"
  52 #include "magick/draw.h"
  53 #include "magick/exception.h"
  54 #include "magick/exception-private.h"
  55 #include "magick/geometry.h"
  56 #include "magick/image.h"
  57 #include "magick/image-private.h"
  58 #include "magick/list.h"
  59 #include "magick/magick.h"
  60 #include "magick/memory_.h"
  61 #include "magick/monitor.h"
  62 #include "magick/monitor-private.h"
  63 #include "magick/option.h"
  64 #include "magick/pixel-private.h"
  65 #include "magick/quantum-private.h"
  66 #include "magick/static.h"
  67 #include "magick/statistic.h"
  68 #include "magick/string_.h"
  69 #include "magick/module.h"
  70 \f
  71 /*
  72   Forward declarations.
  73 */
  74 static MagickBooleanType
  75   WriteTXTImage(const ImageInfo *,Image *);
  76 \f
  77 /*
  78 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  79 %                                                                             %
  80 %                                                                             %
  81 %                                                                             %
  82 %   I s T X T                                                                 %
  83 %                                                                             %
  84 %                                                                             %
  85 %                                                                             %
  86 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  87 %
  88 %  IsTXT() returns MagickTrue if the image format type, identified by the magick
  89 %  string, is TXT.
  90 %
  91 %  The format of the IsTXT method is:
  92 %
  93 %      MagickBooleanType IsTXT(const unsigned char *magick,const size_t length)
  94 %
  95 %  A description of each parameter follows:
  96 %
  97 %    o magick: compare image format pattern against these bytes.
  98 %
  99 %    o length: Specifies the length of the magick string.
 100 %
 101 */
 102 static MagickBooleanType IsTXT(const unsigned char *magick,const size_t length)
 103 {
 104 #define MagickID  "# ImageMagick pixel enumeration:"
 105
 106   char
 107     colorspace[MaxTextExtent];
 108
 109   ssize_t
 110     count;
 111
 112   unsigned long
 113     columns,
 114     depth,
 115     rows;
 116
 117   if (length < 40)
 118     return(MagickFalse);
 119   if (LocaleNCompare((const char *) magick,MagickID,strlen(MagickID)) != 0)
 120     return(MagickFalse);
 121   count=(ssize_t) sscanf((const char *) magick+32,"%lu,%lu,%lu,%s",&columns,
 122     &rows,&depth,colorspace);
 123   if (count != 4)
 124     return(MagickFalse);
 125   return(MagickTrue);
 126 }
 127 \f
 128 /*
 129 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 130 %                                                                             %
 131 %                                                                             %
 132 %                                                                             %
 133 %   R e a d T E X T I m a g e                                                 %
 134 %                                                                             %
 135 %                                                                             %
 136 %                                                                             %
 137 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 138 %
 139 %  ReadTEXTImage() reads a text file and returns it as an image.  It
 140 %  allocates the memory necessary for the new Image structure and returns a
 141 %  pointer to the new image.
 142 %
 143 %  The format of the ReadTEXTImage method is:
 144 %
 145 %      Image *ReadTEXTImage(const ImageInfo *image_info,Image *image,
 146 %        char *text,ExceptionInfo *exception)
 147 %
 148 %  A description of each parameter follows:
 149 %
 150 %    o image_info: the image info.
 151 %
 152 %    o image: the image.
 153 %
 154 %    o text: the text storage buffer.
 155 %
 156 %    o exception: return any errors or warnings in this structure.
 157 %
 158 */
 159 static Image *ReadTEXTImage(const ImageInfo *image_info,Image *image,
 160   char *text,ExceptionInfo *exception)
 161 {
 162   char
 163     filename[MaxTextExtent],
 164     geometry[MaxTextExtent],
 165     *p;
 166
 167   DrawInfo
 168     *draw_info;
 169
 170   Image
 171     *texture;
 172
 173   ssize_t
 174     offset;
 175
 176   MagickBooleanType
 177     status;
 178
 179   PointInfo
 180     delta;
 181
 182   RectangleInfo
 183     page;
 184
 185   TypeMetric
 186     metrics;
 187
 188   /*
 189     Open image file.
 190   */
 191   assert(image_info != (const ImageInfo *) NULL);
 192   assert(image_info->signature == MagickSignature);
 193   if (image_info->debug != MagickFalse)
 194     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 195       image_info->filename);
 196   assert(exception != (ExceptionInfo *) NULL);
 197   assert(exception->signature == MagickSignature);
 198   /*
 199     Set the page geometry.
 200   */
 201   delta.x=DefaultResolution;
 202   delta.y=DefaultResolution;
 203   if ((image->x_resolution == 0.0) || (image->y_resolution == 0.0))
 204     {
 205       GeometryInfo
 206         geometry_info;
 207
 208       MagickStatusType
 209         flags;
 210
 211       flags=ParseGeometry(PSDensityGeometry,&geometry_info);
 212       image->x_resolution=geometry_info.rho;
 213       image->y_resolution=geometry_info.sigma;
 214       if ((flags & SigmaValue) == 0)
 215         image->y_resolution=image->x_resolution;
 216     }
 217   page.width=612;
 218   page.height=792;
 219   page.x=43;
 220   page.y=43;
 221   if (image_info->page != (char *) NULL)
 222     (void) ParseAbsoluteGeometry(image_info->page,&page);
 223   /*
 224     Initialize Image structure.
 225   */
 226   image->columns=(size_t) floor((((double) page.width*
 227     image->x_resolution)/delta.x)+0.5);
 228   image->rows=(size_t) floor((((double) page.height*
 229     image->y_resolution)/delta.y)+0.5);
 230   image->page.x=0;
 231   image->page.y=0;
 232   texture=(Image *) NULL;
 233   if (image_info->texture != (char *) NULL)
 234     {
 235       ImageInfo
 236         *read_info;
 237
 238       read_info=CloneImageInfo(image_info);
 239       SetImageInfoBlob(read_info,(void *) NULL,0);
 240       (void) CopyMagickString(read_info->filename,image_info->texture,
 241         MaxTextExtent);
 242       texture=ReadImage(read_info,exception);
 243       read_info=DestroyImageInfo(read_info);
 244     }
 245   /*
 246     Annotate the text image.
 247   */
 248   (void) SetImageBackgroundColor(image);
 249   draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL);
 250   (void) CloneString(&draw_info->text,image_info->filename);
 251   (void) FormatMagickString(geometry,MaxTextExtent,"0x0%+ld%+ld",(long) page.x,
 252     (long) page.y);
 253   (void) CloneString(&draw_info->geometry,geometry);
 254   status=GetTypeMetrics(image,draw_info,&metrics);
 255   if (status == MagickFalse)
 256     ThrowReaderException(TypeError,"UnableToGetTypeMetrics");
 257   page.y=(ssize_t) ceil((double) page.y+metrics.ascent-0.5);
 258   (void) FormatMagickString(geometry,MaxTextExtent,"0x0%+ld%+ld",(long) page.x,
 259     (long) page.y);
 260   (void) CloneString(&draw_info->geometry,geometry);
 261   (void) CopyMagickString(filename,image_info->filename,MaxTextExtent);
 262   if (*draw_info->text != '\0')
 263     *draw_info->text='\0';
 264   p=text;
 265   for (offset=2*page.y; p != (char *) NULL; )
 266   {
 267     /*
 268       Annotate image with text.
 269     */
 270     (void) ConcatenateString(&draw_info->text,text);
 271     (void) ConcatenateString(&draw_info->text,"\n");
 272     offset+=(ssize_t) (metrics.ascent-metrics.descent);
 273     if (image->previous == (Image *) NULL)
 274       {
 275         status=SetImageProgress(image,LoadImageTag,offset,image->rows);
 276         if (status == MagickFalse)
 277           break;
 278       }
 279     p=ReadBlobString(image,text);
 280     if ((offset < (ssize_t) image->rows) && (p != (char *) NULL))
 281       continue;
 282     if (texture != (Image *) NULL)
 283       {
 284         MagickProgressMonitor
 285           progress_monitor;
 286
 287         progress_monitor=SetImageProgressMonitor(image,
 288           (MagickProgressMonitor) NULL,image->client_data);
 289         (void) TextureImage(image,texture);
 290         (void) SetImageProgressMonitor(image,progress_monitor,
 291           image->client_data);
 292       }
 293     (void) AnnotateImage(image,draw_info);
 294     if (p == (char *) NULL)
 295       break;
 296     /*
 297       Page is full-- allocate next image structure.
 298     */
 299     *draw_info->text='\0';
 300     offset=2*page.y;
 301     AcquireNextImage(image_info,image);
 302     if (GetNextImageInList(image) == (Image *) NULL)
 303       {
 304         image=DestroyImageList(image);
 305         return((Image *) NULL);
 306       }
 307     image->next->columns=image->columns;
 308     image->next->rows=image->rows;
 309     image=SyncNextImageInList(image);
 310     (void) CopyMagickString(image->filename,filename,MaxTextExtent);
 311     (void) SetImageBackgroundColor(image);
 312     status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
 313       GetBlobSize(image));
 314     if (status == MagickFalse)
 315       break;
 316   }
 317   if (texture != (Image *) NULL)
 318     {
 319       MagickProgressMonitor
 320         progress_monitor;
 321
 322       progress_monitor=SetImageProgressMonitor(image,
 323         (MagickProgressMonitor) NULL,image->client_data);
 324       (void) TextureImage(image,texture);
 325       (void) SetImageProgressMonitor(image,progress_monitor,image->client_data);
 326     }
 327   (void) AnnotateImage(image,draw_info);
 328   if (texture != (Image *) NULL)
 329     texture=DestroyImage(texture);
 330   draw_info=DestroyDrawInfo(draw_info);
 331   (void) CloseBlob(image);
 332   return(GetFirstImageInList(image));
 333 }
 334 \f
 335 /*
 336 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 337 %                                                                             %
 338 %                                                                             %
 339 %                                                                             %
 340 %   R e a d T X T I m a g e                                                   %
 341 %                                                                             %
 342 %                                                                             %
 343 %                                                                             %
 344 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 345 %
 346 %  ReadTXTImage() reads a text file and returns it as an image.  It allocates
 347 %  the memory necessary for the new Image structure and returns a pointer to
 348 %  the new image.
 349 %
 350 %  The format of the ReadTXTImage method is:
 351 %
 352 %      Image *ReadTXTImage(const ImageInfo *image_info,ExceptionInfo *exception)
 353 %
 354 %  A description of each parameter follows:
 355 %
 356 %    o image_info: the image info.
 357 %
 358 %    o exception: return any errors or warnings in this structure.
 359 %
 360 */
 361 static Image *ReadTXTImage(const ImageInfo *image_info,ExceptionInfo *exception)
 362 {
 363   char
 364     colorspace[MaxTextExtent],
 365     text[MaxTextExtent];
 366
 367   Image
 368     *image;
 369
 370   IndexPacket
 371     *indexes;
 372
 373   long
 374     type,
 375     x_offset,
 376     y,
 377     y_offset;
 378
 379   LongPixelPacket
 380     pixel;
 381
 382   MagickBooleanType
 383     status;
 384
 385   QuantumAny
 386     range;
 387
 388   register ssize_t
 389     i,
 390     x;
 391
 392   register PixelPacket
 393     *q;
 394
 395   ssize_t
 396     count;
 397
 398   unsigned long
 399     depth,
 400     height,
 401     max_value,
 402     width;
 403
 404   /*
 405     Open image file.
 406   */
 407   assert(image_info != (const ImageInfo *) NULL);
 408   assert(image_info->signature == MagickSignature);
 409   if (image_info->debug != MagickFalse)
 410     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 411       image_info->filename);
 412   assert(exception != (ExceptionInfo *) NULL);
 413   assert(exception->signature == MagickSignature);
 414   image=AcquireImage(image_info);
 415   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 416   if (status == MagickFalse)
 417     {
 418       image=DestroyImageList(image);
 419       return((Image *) NULL);
 420     }
 421   (void) ResetMagickMemory(text,0,sizeof(text));
 422   (void) ReadBlobString(image,text);
 423   if (LocaleNCompare((char *) text,MagickID,strlen(MagickID)) != 0)
 424     return(ReadTEXTImage(image_info,image,text,exception));
 425   do
 426   {
 427     *colorspace='\0';
 428     count=(ssize_t) sscanf(text+32,"%lu,%lu,%lu,%s",&width,&height,&max_value,
 429       colorspace);
 430     if (count != 4)
 431       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 432     image->columns=width;
 433     image->rows=height;
 434     for (depth=1; (GetQuantumRange(depth)+1) < max_value; depth++) ;
 435     image->depth=depth;
 436     LocaleLower(colorspace);
 437     i=(ssize_t) strlen(colorspace)-1;
 438     image->matte=MagickFalse;
 439     if ((i > 0) && (colorspace[i] == 'a'))
 440       {
 441         colorspace[i]='\0';
 442         image->matte=MagickTrue;
 443       }
 444     type=ParseMagickOption(MagickColorspaceOptions,MagickFalse,colorspace);
 445     if (type < 0)
 446       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 447     image->colorspace=(ColorspaceType) type;
 448     (void) ResetMagickMemory(&pixel,0,sizeof(pixel));
 449     (void) SetImageBackgroundColor(image);
 450     range=GetQuantumRange(image->depth);
 451     for (y=0; y < (ssize_t) image->rows; y++)
 452     {
 453       for (x=0; x < (ssize_t) image->columns; x++)
 454       {
 455         if (ReadBlobString(image,text) == (char *) NULL)
 456           break;
 457         if (image->colorspace == CMYKColorspace)
 458           {
 459             if (image->matte != MagickFalse)
 460               count=(ssize_t) sscanf(text,"%ld,%ld: (%u,%u,%u,%u,%u",&x_offset,
 461                 &y_offset,&pixel.red,&pixel.green,&pixel.blue,&pixel.index,
 462                 &pixel.opacity);
 463             else
 464               count=(ssize_t) sscanf(text,"%ld,%ld: (%u,%u,%u,%u",&x_offset,
 465                 &y_offset,&pixel.red,&pixel.green,&pixel.blue,&pixel.index);
 466           }
 467         else
 468           if (image->matte != MagickFalse)
 469             count=(ssize_t) sscanf(text,"%ld,%ld: (%u,%u,%u,%u",&x_offset,
 470               &y_offset,&pixel.red,&pixel.green,&pixel.blue,&pixel.opacity);
 471           else
 472             count=(ssize_t) sscanf(text,"%ld,%ld: (%u,%u,%u",&x_offset,
 473               &y_offset,&pixel.red,&pixel.green,&pixel.blue);
 474         if (count < 5)
 475           continue;
 476         q=GetAuthenticPixels(image,x_offset,y_offset,1,1,exception);
 477         if (q == (PixelPacket *) NULL)
 478           continue;
 479         q->red=ScaleAnyToQuantum(pixel.red,range);
 480         q->green=ScaleAnyToQuantum(pixel.green,range);
 481         q->blue=ScaleAnyToQuantum(pixel.blue,range);
 482         if (image->colorspace == CMYKColorspace)
 483           {
 484             indexes=GetAuthenticIndexQueue(image);
 485             *indexes=ScaleAnyToQuantum(pixel.index,range);
 486           }
 487         if (image->matte != MagickFalse)
 488           q->opacity=(Quantum) (QuantumRange-ScaleAnyToQuantum(pixel.opacity,
 489             range));
 490         if (SyncAuthenticPixels(image,exception) == MagickFalse)
 491           break;
 492       }
 493     }
 494     (void) ReadBlobString(image,text);
 495     if (LocaleNCompare((char *) text,MagickID,strlen(MagickID)) == 0)
 496       {
 497         /*
 498           Allocate next image structure.
 499         */
 500         AcquireNextImage(image_info,image);
 501         if (GetNextImageInList(image) == (Image *) NULL)
 502           {
 503             image=DestroyImageList(image);
 504             return((Image *) NULL);
 505           }
 506         image=SyncNextImageInList(image);
 507         status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
 508           GetBlobSize(image));
 509         if (status == MagickFalse)
 510           break;
 511       }
 512   } while (LocaleNCompare((char *) text,MagickID,strlen(MagickID)) == 0);
 513   (void) CloseBlob(image);
 514   return(GetFirstImageInList(image));
 515 }
 516 \f
 517 /*
 518 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 519 %                                                                             %
 520 %                                                                             %
 521 %                                                                             %
 522 %   R e g i s t e r T X T I m a g e                                           %
 523 %                                                                             %
 524 %                                                                             %
 525 %                                                                             %
 526 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 527 %
 528 %  RegisterTXTImage() adds attributes for the TXT image format to the
 529 %  list of supported formats.  The attributes include the image format
 530 %  tag, a method to read and/or write the format, whether the format
 531 %  supports the saving of more than one frame to the same file or blob,
 532 %  whether the format supports native in-memory I/O, and a brief
 533 %  description of the format.
 534 %
 535 %  The format of the RegisterTXTImage method is:
 536 %
 537 %      size_t RegisterTXTImage(void)
 538 %
 539 */
 540 ModuleExport size_t RegisterTXTImage(void)
 541 {
 542   MagickInfo
 543     *entry;
 544
 545   entry=SetMagickInfo("TEXT");
 546   entry->decoder=(DecodeImageHandler *) ReadTXTImage;
 547   entry->encoder=(EncodeImageHandler *) WriteTXTImage;
 548   entry->raw=MagickTrue;
 549   entry->endian_support=MagickTrue;
 550   entry->description=ConstantString("Text");
 551   entry->module=ConstantString("TXT");
 552   (void) RegisterMagickInfo(entry);
 553   entry=SetMagickInfo("TXT");
 554   entry->decoder=(DecodeImageHandler *) ReadTXTImage;
 555   entry->encoder=(EncodeImageHandler *) WriteTXTImage;
 556   entry->description=ConstantString("Text");
 557   entry->magick=(IsImageFormatHandler *) IsTXT;
 558   entry->module=ConstantString("TXT");
 559   (void) RegisterMagickInfo(entry);
 560   return(MagickImageCoderSignature);
 561 }
 562 \f
 563 /*
 564 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 565 %                                                                             %
 566 %                                                                             %
 567 %                                                                             %
 568 %   U n r e g i s t e r T X T I m a g e                                       %
 569 %                                                                             %
 570 %                                                                             %
 571 %                                                                             %
 572 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 573 %
 574 %  UnregisterTXTImage() removes format registrations made by the
 575 %  TXT module from the list of supported format.
 576 %
 577 %  The format of the UnregisterTXTImage method is:
 578 %
 579 %      UnregisterTXTImage(void)
 580 %
 581 */
 582 ModuleExport void UnregisterTXTImage(void)
 583 {
 584   (void) UnregisterMagickInfo("TEXT");
 585   (void) UnregisterMagickInfo("TXT");
 586 }
 587 \f
 588 /*
 589 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 590 %                                                                             %
 591 %                                                                             %
 592 %                                                                             %
 593 %   W r i t e T X T I m a g e                                                 %
 594 %                                                                             %
 595 %                                                                             %
 596 %                                                                             %
 597 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 598 %
 599 %  WriteTXTImage writes the pixel values as text numbers.
 600 %
 601 %  The format of the WriteTXTImage method is:
 602 %
 603 %      MagickBooleanType WriteTXTImage(const ImageInfo *image_info,Image *image)
 604 %
 605 %  A description of each parameter follows.
 606 %
 607 %    o image_info: the image info.
 608 %
 609 %    o image:  The image.
 610 %
 611 */
 612 static MagickBooleanType WriteTXTImage(const ImageInfo *image_info,Image *image)
 613 {
 614   char
 615     buffer[MaxTextExtent],
 616     colorspace[MaxTextExtent],
 617     tuple[MaxTextExtent];
 618
 619   ssize_t
 620     y;
 621
 622   MagickBooleanType
 623     status;
 624
 625   MagickOffsetType
 626     scene;
 627
 628   MagickPixelPacket
 629     pixel;
 630
 631   register const IndexPacket
 632     *indexes;
 633
 634   register const PixelPacket
 635     *p;
 636
 637   register ssize_t
 638     x;
 639
 640   /*
 641     Open output image file.
 642   */
 643   assert(image_info != (const ImageInfo *) NULL);
 644   assert(image_info->signature == MagickSignature);
 645   assert(image != (Image *) NULL);
 646   assert(image->signature == MagickSignature);
 647   if (image->debug != MagickFalse)
 648     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 649   status=OpenBlob(image_info,image,WriteBlobMode,&image->exception);
 650   if (status == MagickFalse)
 651     return(status);
 652   scene=0;
 653   do
 654   {
 655     (void) CopyMagickString(colorspace,MagickOptionToMnemonic(
 656       MagickColorspaceOptions,(ssize_t) image->colorspace),MaxTextExtent);
 657     LocaleLower(colorspace);
 658     image->depth=GetImageQuantumDepth(image,MagickTrue);
 659     if (image->matte != MagickFalse)
 660       (void) ConcatenateMagickString(colorspace,"a",MaxTextExtent);
 661     (void) FormatMagickString(buffer,MaxTextExtent,
 662       "# ImageMagick pixel enumeration: %.20g,%.20g,%.20g,%s\n",(double)
 663       image->columns,(double) image->rows,(double)
 664       GetQuantumRange(image->depth),colorspace);
 665     (void) WriteBlobString(image,buffer);
 666     GetMagickPixelPacket(image,&pixel);
 667     for (y=0; y < (ssize_t) image->rows; y++)
 668     {
 669       p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
 670       if (p == (const PixelPacket *) NULL)
 671         break;
 672       indexes=GetVirtualIndexQueue(image);
 673       for (x=0; x < (ssize_t) image->columns; x++)
 674       {
 675         (void) FormatMagickString(buffer,MaxTextExtent,"%.20g,%.20g: ",(double)
 676           x,(double) y);
 677         (void) WriteBlobString(image,buffer);
 678         SetMagickPixelPacket(image,p,indexes+x,&pixel);
 679         (void) CopyMagickString(tuple,"(",MaxTextExtent);
 680         ConcatenateColorComponent(&pixel,RedChannel,X11Compliance,tuple);
 681         (void) ConcatenateMagickString(tuple,",",MaxTextExtent);
 682         ConcatenateColorComponent(&pixel,GreenChannel,X11Compliance,tuple);
 683         (void) ConcatenateMagickString(tuple,",",MaxTextExtent);
 684         ConcatenateColorComponent(&pixel,BlueChannel,X11Compliance,tuple);
 685         if (pixel.colorspace == CMYKColorspace)
 686           {
 687             (void) ConcatenateMagickString(tuple,",",MaxTextExtent);
 688             ConcatenateColorComponent(&pixel,IndexChannel,X11Compliance,tuple);
 689           }
 690         if (pixel.matte != MagickFalse)
 691           {
 692             (void) ConcatenateMagickString(tuple,",",MaxTextExtent);
 693             ConcatenateColorComponent(&pixel,AlphaChannel,X11Compliance,tuple);
 694           }
 695         (void) ConcatenateMagickString(tuple,")",MaxTextExtent);
 696         (void) WriteBlobString(image,tuple);
 697         (void) WriteBlobString(image,"  ");
 698         GetColorTuple(&pixel,MagickTrue,tuple);
 699         (void) FormatMagickString(buffer,MaxTextExtent,"%s",tuple);
 700         (void) WriteBlobString(image,buffer);
 701         (void) WriteBlobString(image,"  ");
 702         (void) QueryMagickColorname(image,&pixel,SVGCompliance,tuple,
 703           &image->exception);
 704         (void) WriteBlobString(image,tuple);
 705         (void) WriteBlobString(image,"\n");
 706         p++;
 707       }
 708       status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
 709         image->rows);
 710       if (status == MagickFalse)
 711         break;
 712     }
 713     if (GetNextImageInList(image) == (Image *) NULL)
 714       break;
 715     image=SyncNextImageInList(image);
 716     status=SetImageProgress(image,SaveImagesTag,scene++,
 717       GetImageListLength(image));
 718     if (status == MagickFalse)
 719       break;
 720   } while (image_info->adjoin != MagickFalse);
 721   (void) CloseBlob(image);
 722   return(MagickTrue);
 723 }