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

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                            FFFFF  PPPP   X   X                              %
   7 %                            F      P   P   X X                               %
   8 %                            FFF    PPPP     X                                %
   9 %                            F      P       X X                               %
  10 %                            F      P      X   X                              %
  11 %                                                                             %
  12 %                                                                             %
  13 %                     Read/Write FlashPIX Image Format                        %
  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/property.h"
  44 #include "magick/blob.h"
  45 #include "magick/blob-private.h"
  46 #include "magick/cache.h"
  47 #include "magick/color.h"
  48 #include "magick/color-private.h"
  49 #include "magick/colorspace.h"
  50 #include "magick/constitute.h"
  51 #include "magick/exception.h"
  52 #include "magick/exception-private.h"
  53 #include "magick/geometry.h"
  54 #include "magick/image.h"
  55 #include "magick/image-private.h"
  56 #include "magick/list.h"
  57 #include "magick/magick.h"
  58 #include "magick/memory_.h"
  59 #include "magick/monitor.h"
  60 #include "magick/monitor-private.h"
  61 #include "magick/pixel.h"
  62 #include "magick/quantum-private.h"
  63 #include "magick/static.h"
  64 #include "magick/string_.h"
  65 #include "magick/module.h"
  66 #if defined(MAGICKCORE_FPX_DELEGATE)
  67 #if !defined(vms) && !defined(macintosh) && !defined(__WINDOWS__)
  68 #include <fpxlib.h>
  69 #else
  70 #include "Fpxlib.h"
  71 #endif
  72 #endif
  73 \f
  74 #if defined(MAGICKCORE_FPX_DELEGATE)
  75 /*
  76   Forward declarations.
  77 */
  78 static MagickBooleanType
  79   WriteFPXImage(const ImageInfo *,Image *);
  80 #endif
  81 \f
  82 /*
  83 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  84 %                                                                             %
  85 %                                                                             %
  86 %                                                                             %
  87 %   I s F P X                                                                 %
  88 %                                                                             %
  89 %                                                                             %
  90 %                                                                             %
  91 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  92 %
  93 %  IsFPX() returns MagickTrue if the image format type, identified by the
  94 %  magick string, is FPX.
  95 %
  96 %  The format of the IsFPX method is:
  97 %
  98 %      MagickBooleanType IsFPX(const unsigned char *magick,const size_t length)
  99 %
 100 %  A description of each parameter follows:
 101 %
 102 %    o magick: compare image format pattern against these bytes.
 103 %
 104 %    o length: Specifies the length of the magick string.
 105 %
 106 */
 107 static MagickBooleanType IsFPX(const unsigned char *magick,const size_t length)
 108 {
 109   if (length < 4)
 110     return(MagickFalse);
 111   if (memcmp(magick,"\320\317\021\340",4) == 0)
 112     return(MagickTrue);
 113   return(MagickFalse);
 114 }
 115 \f
 116 #if defined(MAGICKCORE_FPX_DELEGATE)
 117 /*
 118 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 119 %                                                                             %
 120 %                                                                             %
 121 %                                                                             %
 122 %   R e a d F P X I m a g e                                                   %
 123 %                                                                             %
 124 %                                                                             %
 125 %                                                                             %
 126 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 127 %
 128 %  ReadFPXImage() reads a FlashPix image file and returns it.  It
 129 %  allocates the memory necessary for the new Image structure and returns a
 130 %  pointer to the new image.  This method was contributed by BillR@corbis.com.
 131 %
 132 %  The format of the ReadFPXImage method is:
 133 %
 134 %      Image *ReadFPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
 135 %
 136 %  A description of each parameter follows:
 137 %
 138 %    o image_info: the image info.
 139 %
 140 %    o exception: return any errors or warnings in this structure.
 141 %
 142 */
 143 static Image *ReadFPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
 144 {
 145   FPXColorspace
 146     colorspace;
 147
 148   FPXImageComponentDesc
 149     *alpha_component,
 150     *blue_component,
 151     *green_component,
 152     *red_component;
 153
 154   FPXImageDesc
 155     fpx_info;
 156
 157   FPXImageHandle
 158     *flashpix;
 159
 160   FPXStatus
 161     fpx_status;
 162
 163   FPXSummaryInformation
 164     summary_info;
 165
 166   Image
 167     *image;
 168
 169   IndexPacket
 170     index;
 171
 172   long
 173     y;
 174
 175   MagickBooleanType
 176     status;
 177
 178   register IndexPacket
 179     *indexes;
 180
 181   register long
 182     i,
 183     x;
 184
 185   register PixelPacket
 186     *q;
 187
 188   register unsigned char
 189     *a,
 190     *b,
 191     *g,
 192     *r;
 193
 194   size_t
 195     memory_limit;
 196
 197   unsigned char
 198     *pixels;
 199
 200   unsigned int
 201     height,
 202     tile_width,
 203     tile_height,
 204     width;
 205
 206   unsigned long
 207     scene;
 208
 209   /*
 210     Open image.
 211   */
 212   assert(image_info != (const ImageInfo *) NULL);
 213   assert(image_info->signature == MagickSignature);
 214   if (image_info->debug != MagickFalse)
 215     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 216       image_info->filename);
 217   assert(exception != (ExceptionInfo *) NULL);
 218   assert(exception->signature == MagickSignature);
 219   image=AcquireImage(image_info);
 220   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 221   if (status == MagickFalse)
 222     {
 223       image=DestroyImageList(image);
 224       return((Image *) NULL);
 225     }
 226   (void) CloseBlob(image);
 227   /*
 228     Initialize FPX toolkit.
 229   */
 230   fpx_status=FPX_InitSystem();
 231   if (fpx_status != FPX_OK)
 232     ThrowReaderException(CoderError,"UnableToInitializeFPXLibrary");
 233   memory_limit=20000000;
 234   fpx_status=FPX_SetToolkitMemoryLimit(&memory_limit);
 235   if (fpx_status != FPX_OK)
 236     {
 237       FPX_ClearSystem();
 238       ThrowReaderException(CoderError,"UnableToInitializeFPXLibrary");
 239     }
 240   tile_width=64;
 241   tile_height=64;
 242   flashpix=(FPXImageHandle *) NULL;
 243   {
 244 #if defined(macintosh)
 245     FSSpec
 246       fsspec;
 247
 248     FilenameToFSSpec(image->filename,&fsspec);
 249     fpx_status=FPX_OpenImageByFilename((const FSSpec &) fsspec,(char *) NULL,
 250 #else
 251     fpx_status=FPX_OpenImageByFilename(image->filename,(char *) NULL,
 252 #endif
 253       &width,&height,&tile_width,&tile_height,&colorspace,&flashpix);
 254   }
 255   if (fpx_status == FPX_LOW_MEMORY_ERROR)
 256     {
 257       FPX_ClearSystem();
 258       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 259     }
 260   if (fpx_status != FPX_OK)
 261     {
 262       FPX_ClearSystem();
 263       ThrowFileException(exception,FileOpenError,"UnableToOpenFile",
 264         image->filename);
 265       image=DestroyImageList(image);
 266       return((Image *) NULL);
 267     }
 268   if (colorspace.numberOfComponents == 0)
 269     {
 270       FPX_ClearSystem();
 271       ThrowReaderException(CorruptImageError,"ImageTypeNotSupported");
 272     }
 273   if (image_info->view == (char *) NULL)
 274     {
 275       float
 276         aspect_ratio;
 277
 278       /*
 279         Get the aspect ratio.
 280       */
 281       aspect_ratio=(float) width/height;
 282       fpx_status=FPX_GetImageResultAspectRatio(flashpix,&aspect_ratio);
 283       if (fpx_status != FPX_OK)
 284         ThrowReaderException(DelegateError,"UnableToReadAspectRatio");
 285       if (width != (unsigned long) ((aspect_ratio*height)+0.5))
 286         Swap(width,height);
 287     }
 288   fpx_status=FPX_GetSummaryInformation(flashpix,&summary_info);
 289   if (fpx_status != FPX_OK)
 290     {
 291       FPX_ClearSystem();
 292       ThrowReaderException(DelegateError,"UnableToReadSummaryInfo");
 293     }
 294   if (summary_info.title_valid)
 295     if ((summary_info.title.length != 0) &&
 296         (summary_info.title.ptr != (unsigned char *) NULL))
 297       {
 298         char
 299           *label;
 300
 301         /*
 302           Note image label.
 303         */
 304         label=(char *) NULL;
 305         if (~summary_info.title.length >= MaxTextExtent)
 306           label=(char *) AcquireQuantumMemory(summary_info.title.length+
 307             MaxTextExtent,sizeof(*label));
 308         if (label == (char *) NULL)
 309           {
 310             FPX_ClearSystem();
 311             ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 312           }
 313         (void) CopyMagickString(label,(char *) summary_info.title.ptr,
 314           summary_info.title.length+1);
 315         (void) SetImageProperty(image,"label",label);
 316         label=DestroyString(label);
 317       }
 318   if (summary_info.comments_valid)
 319     if ((summary_info.comments.length != 0) &&
 320         (summary_info.comments.ptr != (unsigned char *) NULL))
 321       {
 322         char
 323           *comments;
 324
 325         /*
 326           Note image comment.
 327         */
 328         comments=(char *) NULL;
 329         if (~summary_info.comments.length >= MaxTextExtent)
 330           comments=(char *) AcquireQuantumMemory(summary_info.comments.length+
 331             MaxTextExtent,sizeof(*comments));
 332         if (comments == (char *) NULL)
 333           {
 334             FPX_ClearSystem();
 335             ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 336           }
 337         (void) CopyMagickString(comments,(char *) summary_info.comments.ptr,
 338           summary_info.comments.length+1);
 339         (void) SetImageProperty(image,"comment",comments);
 340         comments=DestroyString(comments);
 341       }
 342   /*
 343     Determine resolution by scene specification.
 344   */
 345   for (i=1; ; i++)
 346     if (((width >> i) < tile_width) || ((height >> i) < tile_height))
 347       break;
 348   scene=i;
 349   if (image_info->number_scenes != 0)
 350     while (scene > image_info->scene)
 351     {
 352       width>>=1;
 353       height>>=1;
 354       scene--;
 355     }
 356   if (image_info->size != (char *) NULL)
 357     while ((width > image->columns) || (height > image->rows))
 358     {
 359       width>>=1;
 360       height>>=1;
 361       scene--;
 362     }
 363   image->depth=8;
 364   image->columns=width;
 365   image->rows=height;
 366   if ((colorspace.numberOfComponents % 2) == 0)
 367     image->matte=MagickTrue;
 368   if (colorspace.numberOfComponents == 1)
 369     {
 370       /*
 371         Create linear colormap.
 372       */
 373       if (AcquireImageColormap(image,MaxColormapSize) == MagickFalse)
 374         {
 375           FPX_ClearSystem();
 376           ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 377         }
 378     }
 379   if (image_info->ping != MagickFalse)
 380     {
 381       (void) FPX_CloseImage(flashpix);
 382       FPX_ClearSystem();
 383       return(GetFirstImageInList(image));
 384     }
 385   /*
 386     Allocate memory for the image and pixel buffer.
 387   */
 388   pixels=(unsigned char *) AcquireQuantumMemory(image->columns,(tile_height+
 389     1UL)*colorspace.numberOfComponents*sizeof(*pixels));
 390   if (pixels == (unsigned char *) NULL)
 391     {
 392       FPX_ClearSystem();
 393       (void) FPX_CloseImage(flashpix);
 394       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 395     }
 396   /*
 397     Initialize FlashPix image description.
 398   */
 399   fpx_info.numberOfComponents=colorspace.numberOfComponents;
 400   for (i=0; i < 4; i++)
 401   {
 402     fpx_info.components[i].myColorType.myDataType=DATA_TYPE_UNSIGNED_BYTE;
 403     fpx_info.components[i].horzSubSampFactor=1;
 404     fpx_info.components[i].vertSubSampFactor=1;
 405     fpx_info.components[i].columnStride=fpx_info.numberOfComponents;
 406     fpx_info.components[i].lineStride=image->columns*
 407       fpx_info.components[i].columnStride;
 408     fpx_info.components[i].theData=pixels+i;
 409   }
 410   fpx_info.components[0].myColorType.myColor=fpx_info.numberOfComponents > 2 ?
 411     NIFRGB_R : MONOCHROME;
 412   red_component=(&fpx_info.components[0]);
 413   fpx_info.components[1].myColorType.myColor=fpx_info.numberOfComponents > 2 ?
 414     NIFRGB_G : ALPHA;
 415   green_component=(&fpx_info.components[1]);
 416   fpx_info.components[2].myColorType.myColor=NIFRGB_B;
 417   blue_component=(&fpx_info.components[2]);
 418   fpx_info.components[3].myColorType.myColor=ALPHA;
 419   alpha_component=(&fpx_info.components[fpx_info.numberOfComponents-1]);
 420   FPX_SetResampleMethod(FPX_LINEAR_INTERPOLATION);
 421   /*
 422     Initialize image pixels.
 423   */
 424   for (y=0; y < (long) image->rows; y++)
 425   {
 426     q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
 427     if (q == (PixelPacket *) NULL)
 428       break;
 429     indexes=GetAuthenticIndexQueue(image);
 430     if ((y % tile_height) == 0)
 431       {
 432         /*
 433           Read FPX image tile (with or without viewing affine)..
 434         */
 435         if (image_info->view != (char *) NULL)
 436           fpx_status=FPX_ReadImageRectangle(flashpix,0,y,image->columns,y+
 437             tile_height-1,scene,&fpx_info);
 438         else
 439           fpx_status=FPX_ReadImageTransformRectangle(flashpix,0.0F,
 440             (float) y/image->rows,(float) image->columns/image->rows,
 441             (float) (y+tile_height-1)/image->rows,(long) image->columns,
 442             (long) tile_height,&fpx_info);
 443         if (fpx_status == FPX_LOW_MEMORY_ERROR)
 444           {
 445             pixels=(unsigned char *) RelinquishMagickMemory(pixels);
 446             (void) FPX_CloseImage(flashpix);
 447             FPX_ClearSystem();
 448             ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 449           }
 450       }
 451     /*
 452       Transfer a FPX pixels.
 453     */
 454     r=red_component->theData+(y % tile_height)*red_component->lineStride;
 455     g=green_component->theData+(y % tile_height)*green_component->lineStride;
 456     b=blue_component->theData+(y % tile_height)*blue_component->lineStride;
 457     a=alpha_component->theData+(y % tile_height)*alpha_component->lineStride;
 458     for (x=0; x < (long) image->columns; x++)
 459     {
 460       if (fpx_info.numberOfComponents > 2)
 461         {
 462           q->red=ScaleCharToQuantum(*r);
 463           q->green=ScaleCharToQuantum(*g);
 464           q->blue=ScaleCharToQuantum(*b);
 465         }
 466       else
 467         {
 468           index=ScaleCharToQuantum(*r);
 469           indexes[x]=index;
 470           q->red=index;
 471           q->green=index;
 472           q->blue=index;
 473         }
 474       SetOpacityPixelComponent(q,OpaqueOpacity);
 475       if (image->matte != MagickFalse)
 476         q->opacity=ScaleCharToQuantum(255-*a);
 477       q++;
 478       r+=red_component->columnStride;
 479       g+=green_component->columnStride;
 480       b+=blue_component->columnStride;
 481       a+=alpha_component->columnStride;
 482     }
 483     if (SyncAuthenticPixels(image,exception) == MagickFalse)
 484       break;
 485     status=SetImageProgress(image,LoadImageTag,y,image->rows);
 486     if (status == MagickFalse)
 487       break;
 488   }
 489   pixels=(unsigned char *) RelinquishMagickMemory(pixels);
 490   (void) FPX_CloseImage(flashpix);
 491   FPX_ClearSystem();
 492   return(GetFirstImageInList(image));
 493 }
 494 #endif
 495 \f
 496 /*
 497 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 498 %                                                                             %
 499 %                                                                             %
 500 %                                                                             %
 501 %   R e g i s t e r F P X I m a g e                                           %
 502 %                                                                             %
 503 %                                                                             %
 504 %                                                                             %
 505 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 506 %
 507 %  RegisterFPXImage() adds attributes for the FPX image format to
 508 %  the list of supported formats.  The attributes include the image format
 509 %  tag, a method to read and/or write the format, whether the format
 510 %  supports the saving of more than one frame to the same file or blob,
 511 %  whether the format supports native in-memory I/O, and a brief
 512 %  description of the format.
 513 %
 514 %  The format of the RegisterFPXImage method is:
 515 %
 516 %      unsigned long RegisterFPXImage(void)
 517 %
 518 */
 519 ModuleExport unsigned long RegisterFPXImage(void)
 520 {
 521   MagickInfo
 522     *entry;
 523
 524   entry=SetMagickInfo("FPX");
 525 #if defined(MAGICKCORE_FPX_DELEGATE)
 526   entry->decoder=(DecodeImageHandler *) ReadFPXImage;
 527   entry->encoder=(EncodeImageHandler *) WriteFPXImage;
 528 #endif
 529   entry->adjoin=MagickFalse;
 530   entry->seekable_stream=MagickTrue;
 531   entry->blob_support=MagickFalse;
 532   entry->magick=(IsImageFormatHandler *) IsFPX;
 533   entry->description=ConstantString("FlashPix Format");
 534   entry->module=ConstantString("FPX");
 535   (void) RegisterMagickInfo(entry);
 536   return(MagickImageCoderSignature);
 537 }
 538 \f
 539 /*
 540 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 541 %                                                                             %
 542 %                                                                             %
 543 %                                                                             %
 544 %   U n r e g i s t e r F P X I m a g e                                       %
 545 %                                                                             %
 546 %                                                                             %
 547 %                                                                             %
 548 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 549 %
 550 %  UnregisterFPXImage() removes format registrations made by the
 551 %  FPX module from the list of supported formats.
 552 %
 553 %  The format of the UnregisterFPXImage method is:
 554 %
 555 %      UnregisterFPXImage(void)
 556 %
 557 */
 558 ModuleExport void UnregisterFPXImage(void)
 559 {
 560   (void) UnregisterMagickInfo("FPX");
 561 }
 562 \f
 563 #if defined(MAGICKCORE_FPX_DELEGATE)
 564 /*
 565 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 566 %                                                                             %
 567 %                                                                             %
 568 %                                                                             %
 569 %   W r i t e F P X I m a g e                                                 %
 570 %                                                                             %
 571 %                                                                             %
 572 %                                                                             %
 573 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 574 %
 575 %  WriteFPXImage() writes an image in the FlashPix image format.  This
 576 %  method was contributed by BillR@corbis.com.
 577 %
 578 %  The format of the WriteFPXImage method is:
 579 %
 580 %      MagickBooleanType WriteFPXImage(const ImageInfo *image_info,Image *image)
 581 %
 582 %  A description of each parameter follows.
 583 %
 584 %    o image_info: the image info.
 585 %
 586 %    o image:  The image.
 587 %
 588 */
 589
 590 static void ColorTwistMultiply(FPXColorTwistMatrix first,
 591   FPXColorTwistMatrix second,FPXColorTwistMatrix *color_twist)
 592 {
 593   /*
 594     Matrix multiply.
 595   */
 596   assert(color_twist != (FPXColorTwistMatrix *) NULL);
 597   color_twist->byy=(first.byy*second.byy)+(first.byc1*second.bc1y)+
 598     (first.byc2*second.bc2y)+(first.dummy1_zero*second.dummy4_zero);
 599   color_twist->byc1=(first.byy*second.byc1)+(first.byc1*second.bc1c1)+
 600     (first.byc2*second.bc2c1)+(first.dummy1_zero*second.dummy5_zero);
 601   color_twist->byc2=(first.byy*second.byc2)+(first.byc1*second.bc1c2)+
 602     (first.byc2*second.bc2c2)+(first.dummy1_zero*second.dummy6_zero);
 603   color_twist->dummy1_zero=(first.byy*second.dummy1_zero)+
 604     (first.byc1*second.dummy2_zero)+(first.byc2*second.dummy3_zero)+
 605     (first.dummy1_zero*second.dummy7_one);
 606   color_twist->bc1y=(first.bc1y*second.byy)+(first.bc1c1*second.bc1y)+
 607     (first.bc1c2*second.bc2y)+(first.dummy2_zero*second.dummy4_zero);
 608   color_twist->bc1c1=(first.bc1y*second.byc1)+(first.bc1c1*second.bc1c1)+
 609     (first.bc1c2*second.bc2c1)+(first.dummy2_zero*second.dummy5_zero);
 610   color_twist->bc1c2=(first.bc1y*second.byc2)+(first.bc1c1*second.bc1c2)+
 611     (first.bc1c2*second.bc2c2)+(first.dummy2_zero*second.dummy6_zero);
 612   color_twist->dummy2_zero=(first.bc1y*second.dummy1_zero)+
 613     (first.bc1c1*second.dummy2_zero)+(first.bc1c2*second.dummy3_zero)+
 614     (first.dummy2_zero*second.dummy7_one);
 615   color_twist->bc2y=(first.bc2y*second.byy)+(first.bc2c1*second.bc1y)+
 616     (first.bc2c2*second.bc2y)+(first.dummy3_zero*second.dummy4_zero);
 617   color_twist->bc2c1=(first.bc2y*second.byc1)+(first.bc2c1*second.bc1c1)+
 618     (first.bc2c2*second.bc2c1)+(first.dummy3_zero*second.dummy5_zero);
 619   color_twist->bc2c2=(first.bc2y*second.byc2)+(first.bc2c1*second.bc1c2)+
 620     (first.bc2c2*second.bc2c2)+(first.dummy3_zero*second.dummy6_zero);
 621   color_twist->dummy3_zero=(first.bc2y*second.dummy1_zero)+
 622     (first.bc2c1*second.dummy2_zero)+(first.bc2c2*second.dummy3_zero)+
 623     (first.dummy3_zero*second.dummy7_one);
 624   color_twist->dummy4_zero=(first.dummy4_zero*second.byy)+
 625     (first.dummy5_zero*second.bc1y)+(first.dummy6_zero*second.bc2y)+
 626     (first.dummy7_one*second.dummy4_zero);
 627   color_twist->dummy5_zero=(first.dummy4_zero*second.byc1)+
 628     (first.dummy5_zero*second.bc1c1)+(first.dummy6_zero*second.bc2c1)+
 629     (first.dummy7_one*second.dummy5_zero);
 630   color_twist->dummy6_zero=(first.dummy4_zero*second.byc2)+
 631     (first.dummy5_zero*second.bc1c2)+(first.dummy6_zero*second.bc2c2)+
 632     (first.dummy7_one*second.dummy6_zero);
 633   color_twist->dummy7_one=(first.dummy4_zero*second.dummy1_zero)+
 634     (first.dummy5_zero*second.dummy2_zero)+
 635     (first.dummy6_zero*second.dummy3_zero)+(first.dummy7_one*second.dummy7_one);
 636 }
 637
 638 static void SetBrightness(double brightness,FPXColorTwistMatrix *color_twist)
 639 {
 640   FPXColorTwistMatrix
 641     effect,
 642     result;
 643
 644   /*
 645     Set image brightness in color twist matrix.
 646   */
 647   assert(color_twist != (FPXColorTwistMatrix *) NULL);
 648   brightness=sqrt((double) brightness);
 649   effect.byy=brightness;
 650   effect.byc1=0.0;
 651   effect.byc2=0.0;
 652   effect.dummy1_zero=0.0;
 653   effect.bc1y=0.0;
 654   effect.bc1c1=brightness;
 655   effect.bc1c2=0.0;
 656   effect.dummy2_zero=0.0;
 657   effect.bc2y=0.0;
 658   effect.bc2c1=0.0;
 659   effect.bc2c2=brightness;
 660   effect.dummy3_zero=0.0;
 661   effect.dummy4_zero=0.0;
 662   effect.dummy5_zero=0.0;
 663   effect.dummy6_zero=0.0;
 664   effect.dummy7_one=1.0;
 665   ColorTwistMultiply(*color_twist,effect,&result);
 666   *color_twist=result;
 667 }
 668
 669 static void SetColorBalance(double red,double green,double blue,
 670   FPXColorTwistMatrix *color_twist)
 671 {
 672   FPXColorTwistMatrix
 673     blue_effect,
 674     green_effect,
 675     result,
 676     rgb_effect,
 677     rg_effect,
 678     red_effect;
 679
 680   /*
 681     Set image color balance in color twist matrix.
 682   */
 683   assert(color_twist != (FPXColorTwistMatrix *) NULL);
 684   red=sqrt((double) red)-1.0;
 685   green=sqrt((double) green)-1.0;
 686   blue=sqrt((double) blue)-1.0;
 687   red_effect.byy=1.0;
 688   red_effect.byc1=0.0;
 689   red_effect.byc2=0.299*red;
 690   red_effect.dummy1_zero=0.0;
 691   red_effect.bc1y=(-0.299)*red;
 692   red_effect.bc1c1=1.0-0.299*red;
 693   red_effect.bc1c2=(-0.299)*red;
 694   red_effect.dummy2_zero=0.0;
 695   red_effect.bc2y=0.701*red;
 696   red_effect.bc2c1=0.0;
 697   red_effect.bc2c2=1.0+0.402*red;
 698   red_effect.dummy3_zero=0.0;
 699   red_effect.dummy4_zero=0.0;
 700   red_effect.dummy5_zero=0.0;
 701   red_effect.dummy6_zero=0.0;
 702   red_effect.dummy7_one=1.0;
 703   green_effect.byy=1.0;
 704   green_effect.byc1=(-0.114)*green;
 705   green_effect.byc2=(-0.299)*green;
 706   green_effect.dummy1_zero=0.0;
 707   green_effect.bc1y=(-0.587)*green;
 708   green_effect.bc1c1=1.0-0.473*green;
 709   green_effect.bc1c2=0.299*green;
 710   green_effect.dummy2_zero=0.0;
 711   green_effect.bc2y=(-0.587)*green;
 712   green_effect.bc2c1=0.114*green;
 713   green_effect.bc2c2=1.0-0.288*green;
 714   green_effect.dummy3_zero=0.0;
 715   green_effect.dummy4_zero=0.0;
 716   green_effect.dummy5_zero=0.0;
 717   green_effect.dummy6_zero=0.0;
 718   green_effect.dummy7_one=1.0;
 719   blue_effect.byy=1.0;
 720   blue_effect.byc1=0.114*blue;
 721   blue_effect.byc2=0.0;
 722   blue_effect.dummy1_zero=0.0;
 723   blue_effect.bc1y=0.886*blue;
 724   blue_effect.bc1c1=1.0+0.772*blue;
 725   blue_effect.bc1c2=0.0;
 726   blue_effect.dummy2_zero=0.0;
 727   blue_effect.bc2y=(-0.114)*blue;
 728   blue_effect.bc2c1=(-0.114)*blue;
 729   blue_effect.bc2c2=1.0-0.114*blue;
 730   blue_effect.dummy3_zero=0.0;
 731   blue_effect.dummy4_zero=0.0;
 732   blue_effect.dummy5_zero=0.0;
 733   blue_effect.dummy6_zero=0.0;
 734   blue_effect.dummy7_one=1.0;
 735   ColorTwistMultiply(red_effect,green_effect,&rg_effect);
 736   ColorTwistMultiply(rg_effect,blue_effect,&rgb_effect);
 737   ColorTwistMultiply(*color_twist,rgb_effect,&result);
 738   *color_twist=result;
 739 }
 740
 741 static void SetSaturation(double saturation,FPXColorTwistMatrix *color_twist)
 742 {
 743   FPXColorTwistMatrix
 744     effect,
 745     result;
 746
 747   /*
 748     Set image saturation in color twist matrix.
 749   */
 750   assert(color_twist != (FPXColorTwistMatrix *) NULL);
 751   effect.byy=1.0;
 752   effect.byc1=0.0;
 753   effect.byc2=0.0;
 754   effect.dummy1_zero=0.0;
 755   effect.bc1y=0.0;
 756   effect.bc1c1=saturation;
 757   effect.bc1c2=0.0;
 758   effect.dummy2_zero=0.0;
 759   effect.bc2y=0.0;
 760   effect.bc2c1=0.0;
 761   effect.bc2c2=saturation;
 762   effect.dummy3_zero=0.0;
 763   effect.dummy4_zero=0.0;
 764   effect.dummy5_zero=0.0;
 765   effect.dummy6_zero=0.0;
 766   effect.dummy7_one=1.0;
 767   ColorTwistMultiply(*color_twist,effect,&result);
 768   *color_twist=result;
 769 }
 770
 771 static MagickBooleanType WriteFPXImage(const ImageInfo *image_info,Image *image)
 772 {
 773   FPXBackground
 774     background_color;
 775
 776   FPXColorspace
 777     colorspace =
 778     {
 779       TRUE, 4,
 780       {
 781         { NIFRGB_R, DATA_TYPE_UNSIGNED_BYTE },
 782         { NIFRGB_G, DATA_TYPE_UNSIGNED_BYTE },
 783         { NIFRGB_B, DATA_TYPE_UNSIGNED_BYTE },
 784         { ALPHA, DATA_TYPE_UNSIGNED_BYTE }
 785       }
 786     };
 787
 788   const char
 789     *comment,
 790     *label;
 791
 792   FPXCompressionOption
 793     compression;
 794
 795   FPXImageDesc
 796     fpx_info;
 797
 798   FPXImageHandle
 799     *flashpix;
 800
 801   FPXStatus
 802     fpx_status;
 803
 804   FPXSummaryInformation
 805     summary_info;
 806
 807   long
 808     y;
 809
 810   MagickBooleanType
 811     status;
 812
 813   QuantumInfo
 814     *quantum_info;
 815
 816   QuantumType
 817     quantum_type;
 818
 819   register const PixelPacket
 820     *p;
 821
 822   register long
 823     i;
 824
 825   size_t
 826     length,
 827     memory_limit;
 828
 829   unsigned char
 830     *pixels;
 831
 832   unsigned int
 833     tile_height,
 834     tile_width;
 835
 836   /*
 837     Open input file.
 838   */
 839   assert(image_info != (const ImageInfo *) NULL);
 840   assert(image_info->signature == MagickSignature);
 841   assert(image != (Image *) NULL);
 842   assert(image->signature == MagickSignature);
 843   if (image->debug != MagickFalse)
 844     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 845   status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
 846   if (status == MagickFalse)
 847     return(status);
 848   (void) CloseBlob(image);
 849   /*
 850     Initialize FPX toolkit.
 851   */
 852   image->depth=8;
 853   if (image->colorspace != RGBColorspace)
 854     (void) TransformImageColorspace(image,RGBColorspace);
 855   memory_limit=20000000;
 856   fpx_status=FPX_SetToolkitMemoryLimit(&memory_limit);
 857   if (fpx_status != FPX_OK)
 858     ThrowWriterException(DelegateError,"UnableToInitializeFPXLibrary");
 859   tile_width=64;
 860   tile_height=64;
 861   colorspace.numberOfComponents=3;
 862   if (image->matte != MagickFalse)
 863     colorspace.numberOfComponents=4;
 864   if ((image_info->type != TrueColorType) &&
 865       IsGrayImage(image,&image->exception))
 866     {
 867       colorspace.numberOfComponents=1;
 868       colorspace.theComponents[0].myColor=MONOCHROME;
 869     }
 870   background_color.color1_value=0;
 871   background_color.color2_value=0;
 872   background_color.color3_value=0;
 873   background_color.color4_value=0;
 874   compression=NONE;
 875   if (image->compression == JPEGCompression)
 876     compression=JPEG_UNSPECIFIED;
 877   if (image_info->compression == JPEGCompression)
 878     compression=JPEG_UNSPECIFIED;
 879   {
 880 #if defined(macintosh)
 881     FSSpec
 882       fsspec;
 883
 884     FilenameToFSSpec(filename,&fsspec);
 885     fpx_status=FPX_CreateImageByFilename((const FSSpec &) fsspec,image->columns,
 886 #else
 887     fpx_status=FPX_CreateImageByFilename(image->filename,image->columns,
 888 #endif
 889       image->rows,tile_width,tile_height,colorspace,background_color,
 890       compression,&flashpix);
 891   }
 892   if (fpx_status != FPX_OK)
 893     return(status);
 894   if (compression == JPEG_UNSPECIFIED)
 895     {
 896       /*
 897         Initialize the compression by quality for the entire image.
 898       */
 899       fpx_status=FPX_SetJPEGCompression(flashpix,(unsigned short)
 900         image->quality == UndefinedCompressionQuality ? 75 : image->quality);
 901       if (fpx_status != FPX_OK)
 902         ThrowWriterException(DelegateError,"UnableToSetJPEGLevel");
 903     }
 904   /*
 905     Set image summary info.
 906   */
 907   summary_info.title_valid=MagickFalse;
 908   summary_info.subject_valid=MagickFalse;
 909   summary_info.author_valid=MagickFalse;
 910   summary_info.comments_valid=MagickFalse;
 911   summary_info.keywords_valid=MagickFalse;
 912   summary_info.OLEtemplate_valid=MagickFalse;
 913   summary_info.last_author_valid=MagickFalse;
 914   summary_info.rev_number_valid=MagickFalse;
 915   summary_info.edit_time_valid=MagickFalse;
 916   summary_info.last_printed_valid=MagickFalse;
 917   summary_info.create_dtm_valid=MagickFalse;
 918   summary_info.last_save_dtm_valid=MagickFalse;
 919   summary_info.page_count_valid=MagickFalse;
 920   summary_info.word_count_valid=MagickFalse;
 921   summary_info.char_count_valid=MagickFalse;
 922   summary_info.thumbnail_valid=MagickFalse;
 923   summary_info.appname_valid=MagickFalse;
 924   summary_info.security_valid=MagickFalse;
 925   label=GetImageProperty(image,"label");
 926   if (label != (const char *) NULL)
 927     {
 928       size_t
 929         length;
 930
 931       /*
 932         Note image label.
 933       */
 934       summary_info.title_valid=MagickTrue;
 935       length=strlen(label);
 936       summary_info.title.length=length;
 937       if (~length >= MaxTextExtent)
 938         summary_info.title.ptr=(unsigned char *) AcquireQuantumMemory(
 939           length+MaxTextExtent,sizeof(*summary_info.title.ptr));
 940       if (summary_info.title.ptr == (unsigned char *) NULL)
 941         ThrowWriterException(DelegateError,"UnableToSetImageTitle");
 942       (void) CopyMagickString((char *) summary_info.title.ptr,label,
 943         MaxTextExtent);
 944     }
 945   comment=GetImageProperty(image,"comment");
 946   if (comment != (const char *) NULL)
 947     {
 948       /*
 949         Note image comment.
 950       */
 951       summary_info.comments_valid=MagickTrue;
 952       summary_info.comments.ptr=(unsigned char *) AcquireString(comment);
 953       summary_info.comments.length=strlen(comment);
 954     }
 955   fpx_status=FPX_SetSummaryInformation(flashpix,&summary_info);
 956   if (fpx_status != FPX_OK)
 957     ThrowWriterException(DelegateError,"UnableToSetSummaryInfo");
 958   /*
 959     Initialize FlashPix image description.
 960   */
 961   quantum_info=AcquireQuantumInfo(image_info,image);
 962   if (quantum_info == (QuantumInfo *) NULL)
 963     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 964   pixels=GetQuantumPixels(quantum_info);
 965   fpx_info.numberOfComponents=colorspace.numberOfComponents;
 966   for (i=0; i < (long) fpx_info.numberOfComponents; i++)
 967   {
 968     fpx_info.components[i].myColorType.myDataType=DATA_TYPE_UNSIGNED_BYTE;
 969     fpx_info.components[i].horzSubSampFactor=1;
 970     fpx_info.components[i].vertSubSampFactor=1;
 971     fpx_info.components[i].columnStride=fpx_info.numberOfComponents;
 972     fpx_info.components[i].lineStride=
 973       image->columns*fpx_info.components[i].columnStride;
 974     fpx_info.components[i].theData=pixels+i;
 975   }
 976   fpx_info.components[0].myColorType.myColor=fpx_info.numberOfComponents != 1
 977     ? NIFRGB_R : MONOCHROME;
 978   fpx_info.components[1].myColorType.myColor=NIFRGB_G;
 979   fpx_info.components[2].myColorType.myColor=NIFRGB_B;
 980   fpx_info.components[3].myColorType.myColor=ALPHA;
 981   /*
 982     Write image pixelss.
 983   */
 984   quantum_type=RGBQuantum;
 985   if (image->matte != MagickFalse)
 986     quantum_type=RGBAQuantum;
 987   if (fpx_info.numberOfComponents == 1)
 988     quantum_type=GrayQuantum;
 989   for (y=0; y < (long) image->rows; y++)
 990   {
 991     p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
 992     if (p == (const PixelPacket *) NULL)
 993       break;
 994     length=ExportQuantumPixels(image,(const CacheView *) NULL,quantum_info,
 995       quantum_type,pixels,&image->exception);
 996     fpx_status=FPX_WriteImageLine(flashpix,&fpx_info);
 997     if (fpx_status != FPX_OK)
 998       break;
 999     status=SetImageProgress(image,SaveImageTag,y,image->rows);
1000     if (status == MagickFalse)
1001       break;
1002   }
1003   quantum_info=DestroyQuantumInfo(quantum_info);
1004   if (image_info->view != (char *) NULL)
1005     {
1006       FPXAffineMatrix
1007         affine;
1008
1009       FPXColorTwistMatrix
1010         color_twist;
1011
1012       FPXContrastAdjustment
1013         contrast;
1014
1015       FPXFilteringValue
1016         sharpen;
1017
1018       FPXResultAspectRatio
1019         aspect_ratio;
1020
1021       FPXROI
1022         view_rect;
1023
1024       MagickBooleanType
1025         affine_valid,
1026         aspect_ratio_valid,
1027         color_twist_valid,
1028         contrast_valid,
1029         sharpen_valid,
1030         view_rect_valid;
1031
1032       /*
1033         Initialize default viewing parameters.
1034       */
1035       contrast=1.0;
1036       contrast_valid=MagickFalse;
1037       color_twist.byy=1.0;
1038       color_twist.byc1=0.0;
1039       color_twist.byc2=0.0;
1040       color_twist.dummy1_zero=0.0;
1041       color_twist.bc1y=0.0;
1042       color_twist.bc1c1=1.0;
1043       color_twist.bc1c2=0.0;
1044       color_twist.dummy2_zero=0.0;
1045       color_twist.bc2y=0.0;
1046       color_twist.bc2c1=0.0;
1047       color_twist.bc2c2=1.0;
1048       color_twist.dummy3_zero=0.0;
1049       color_twist.dummy4_zero=0.0;
1050       color_twist.dummy5_zero=0.0;
1051       color_twist.dummy6_zero=0.0;
1052       color_twist.dummy7_one=1.0;
1053       color_twist_valid=MagickFalse;
1054       sharpen=0.0;
1055       sharpen_valid=MagickFalse;
1056       aspect_ratio=(double) image->columns/image->rows;
1057       aspect_ratio_valid=MagickFalse;
1058       view_rect.left=(float) 0.1;
1059       view_rect.width=aspect_ratio-0.2;
1060       view_rect.top=(float) 0.1;
1061       view_rect.height=(float) 0.8; /* 1.0-0.2 */
1062       view_rect_valid=MagickFalse;
1063       affine.a11=1.0;
1064       affine.a12=0.0;
1065       affine.a13=0.0;
1066       affine.a14=0.0;
1067       affine.a21=0.0;
1068       affine.a22=1.0;
1069       affine.a23=0.0;
1070       affine.a24=0.0;
1071       affine.a31=0.0;
1072       affine.a32=0.0;
1073       affine.a33=1.0;
1074       affine.a34=0.0;
1075       affine.a41=0.0;
1076       affine.a42=0.0;
1077       affine.a43=0.0;
1078       affine.a44=1.0;
1079       affine_valid=MagickFalse;
1080       if (0)
1081         {
1082           /*
1083             Color color twist.
1084           */
1085           SetBrightness(0.5,&color_twist);
1086           SetSaturation(0.5,&color_twist);
1087           SetColorBalance(0.5,1.0,1.0,&color_twist);
1088           color_twist_valid=MagickTrue;
1089         }
1090       if (affine_valid)
1091         {
1092           fpx_status=FPX_SetImageAffineMatrix(flashpix,&affine);
1093           if (fpx_status != FPX_OK)
1094             ThrowWriterException(DelegateError,"UnableToSetAffineMatrix");
1095         }
1096       if (aspect_ratio_valid)
1097         {
1098           fpx_status=FPX_SetImageResultAspectRatio(flashpix,&aspect_ratio);
1099           if (fpx_status != FPX_OK)
1100             ThrowWriterException(DelegateError,"UnableToSetAspectRatio");
1101         }
1102       if (color_twist_valid)
1103         {
1104           fpx_status=FPX_SetImageColorTwistMatrix(flashpix,&color_twist);
1105           if (fpx_status != FPX_OK)
1106             ThrowWriterException(DelegateError,"UnableToSetColorTwist");
1107         }
1108       if (contrast_valid)
1109         {
1110           fpx_status=FPX_SetImageContrastAdjustment(flashpix,&contrast);
1111           if (fpx_status != FPX_OK)
1112             ThrowWriterException(DelegateError,"UnableToSetContrast");
1113         }
1114       if (sharpen_valid)
1115         {
1116           fpx_status=FPX_SetImageFilteringValue(flashpix,&sharpen);
1117           if (fpx_status != FPX_OK)
1118             ThrowWriterException(DelegateError,"UnableToSetFilteringValue");
1119         }
1120       if (view_rect_valid)
1121         {
1122           fpx_status=FPX_SetImageROI(flashpix,&view_rect);
1123           if (fpx_status != FPX_OK)
1124             ThrowWriterException(DelegateError,"UnableToSetRegionOfInterest");
1125         }
1126     }
1127   (void) FPX_CloseImage(flashpix);
1128   FPX_ClearSystem();
1129   return(MagickTrue);
1130 }
1131 #endif