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 %                                   Cristy                                    %
  17 %                                 July 1992                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2014 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/attribute.h"
  44 #include "MagickCore/property.h"
  45 #include "MagickCore/blob.h"
  46 #include "MagickCore/blob-private.h"
  47 #include "MagickCore/cache.h"
  48 #include "MagickCore/color.h"
  49 #include "MagickCore/color-private.h"
  50 #include "MagickCore/colormap.h"
  51 #include "MagickCore/colorspace.h"
  52 #include "MagickCore/colorspace-private.h"
  53 #include "MagickCore/constitute.h"
  54 #include "MagickCore/exception.h"
  55 #include "MagickCore/exception-private.h"
  56 #include "MagickCore/geometry.h"
  57 #include "MagickCore/image.h"
  58 #include "MagickCore/image-private.h"
  59 #include "MagickCore/list.h"
  60 #include "MagickCore/magick.h"
  61 #include "MagickCore/memory_.h"
  62 #include "MagickCore/monitor.h"
  63 #include "MagickCore/monitor-private.h"
  64 #include "MagickCore/pixel.h"
  65 #include "MagickCore/pixel-accessor.h"
  66 #include "MagickCore/property.h"
  67 #include "MagickCore/quantum-private.h"
  68 #include "MagickCore/static.h"
  69 #include "MagickCore/string_.h"
  70 #include "MagickCore/module.h"
  71 #if defined(MAGICKCORE_FPX_DELEGATE)
  72 #if !defined(vms) && !defined(macintosh) && !defined(MAGICKCORE_WINDOWS_SUPPORT)
  73 #include <fpxlib.h>
  74 #else
  75 #include "Fpxlib.h"
  76 #endif
  77 #endif
  78 \f
  79 #if defined(MAGICKCORE_FPX_DELEGATE)
  80 /*
  81   Forward declarations.
  82 */
  83 static MagickBooleanType
  84   WriteFPXImage(const ImageInfo *,Image *,ExceptionInfo *);
  85 #endif
  86 \f
  87 #if defined(MAGICKCORE_FPX_DELEGATE)
  88 /*
  89 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  90 %                                                                             %
  91 %                                                                             %
  92 %                                                                             %
  93 %   R e a d F P X I m a g e                                                   %
  94 %                                                                             %
  95 %                                                                             %
  96 %                                                                             %
  97 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  98 %
  99 %  ReadFPXImage() reads a FlashPix image file and returns it.  It
 100 %  allocates the memory necessary for the new Image structure and returns a
 101 %  pointer to the new image.  This method was contributed by BillR@corbis.com.
 102 %
 103 %  The format of the ReadFPXImage method is:
 104 %
 105 %      Image *ReadFPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
 106 %
 107 %  A description of each parameter follows:
 108 %
 109 %    o image_info: the image info.
 110 %
 111 %    o exception: return any errors or warnings in this structure.
 112 %
 113 */
 114 static Image *ReadFPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
 115 {
 116   FPXColorspace
 117     colorspace;
 118
 119   FPXImageComponentDesc
 120     *alpha_component,
 121     *blue_component,
 122     *green_component,
 123     *red_component;
 124
 125   FPXImageDesc
 126     fpx_info;
 127
 128   FPXImageHandle
 129     *flashpix;
 130
 131   FPXStatus
 132     fpx_status;
 133
 134   FPXSummaryInformation
 135     summary_info;
 136
 137   Image
 138     *image;
 139
 140   MagickBooleanType
 141     status;
 142
 143   Quantum
 144     index;
 145
 146   register ssize_t
 147     i,
 148     x;
 149
 150   register Quantum
 151     *q;
 152
 153   register unsigned char
 154     *a,
 155     *b,
 156     *g,
 157     *r;
 158
 159   size_t
 160     memory_limit;
 161
 162   ssize_t
 163     y;
 164
 165   unsigned char
 166     *pixels;
 167
 168   unsigned int
 169     height,
 170     tile_width,
 171     tile_height,
 172     width;
 173
 174   size_t
 175     scene;
 176
 177   /*
 178     Open image.
 179   */
 180   assert(image_info != (const ImageInfo *) NULL);
 181   assert(image_info->signature == MagickSignature);
 182   if (image_info->debug != MagickFalse)
 183     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 184       image_info->filename);
 185   assert(exception != (ExceptionInfo *) NULL);
 186   assert(exception->signature == MagickSignature);
 187   image=AcquireImage(image_info,exception);
 188   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 189   if (status == MagickFalse)
 190     {
 191       image=DestroyImageList(image);
 192       return((Image *) NULL);
 193     }
 194   (void) CloseBlob(image);
 195   /*
 196     Initialize FPX toolkit.
 197   */
 198   fpx_status=FPX_InitSystem();
 199   if (fpx_status != FPX_OK)
 200     ThrowReaderException(CoderError,"UnableToInitializeFPXLibrary");
 201   memory_limit=20000000;
 202   fpx_status=FPX_SetToolkitMemoryLimit(&memory_limit);
 203   if (fpx_status != FPX_OK)
 204     {
 205       FPX_ClearSystem();
 206       ThrowReaderException(CoderError,"UnableToInitializeFPXLibrary");
 207     }
 208   tile_width=64;
 209   tile_height=64;
 210   flashpix=(FPXImageHandle *) NULL;
 211   {
 212 #if defined(macintosh)
 213     FSSpec
 214       fsspec;
 215
 216     FilenameToFSSpec(image->filename,&fsspec);
 217     fpx_status=FPX_OpenImageByFilename((const FSSpec &) fsspec,(char *) NULL,
 218 #else
 219     fpx_status=FPX_OpenImageByFilename(image->filename,(char *) NULL,
 220 #endif
 221       &width,&height,&tile_width,&tile_height,&colorspace,&flashpix);
 222   }
 223   if (fpx_status == FPX_LOW_MEMORY_ERROR)
 224     {
 225       FPX_ClearSystem();
 226       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 227     }
 228   if (fpx_status != FPX_OK)
 229     {
 230       FPX_ClearSystem();
 231       ThrowFileException(exception,FileOpenError,"UnableToOpenFile",
 232         image->filename);
 233       image=DestroyImageList(image);
 234       return((Image *) NULL);
 235     }
 236   if (colorspace.numberOfComponents == 0)
 237     {
 238       FPX_ClearSystem();
 239       ThrowReaderException(CorruptImageError,"ImageTypeNotSupported");
 240     }
 241   if (image_info->view == (char *) NULL)
 242     {
 243       float
 244         aspect_ratio;
 245
 246       /*
 247         Get the aspect ratio.
 248       */
 249       aspect_ratio=(float) width/height;
 250       fpx_status=FPX_GetImageResultAspectRatio(flashpix,&aspect_ratio);
 251       if (fpx_status != FPX_OK)
 252         ThrowReaderException(DelegateError,"UnableToReadAspectRatio");
 253       if (width != (size_t) floor((aspect_ratio*height)+0.5))
 254         Swap(width,height);
 255     }
 256   fpx_status=FPX_GetSummaryInformation(flashpix,&summary_info);
 257   if (fpx_status != FPX_OK)
 258     {
 259       FPX_ClearSystem();
 260       ThrowReaderException(DelegateError,"UnableToReadSummaryInfo");
 261     }
 262   if (summary_info.title_valid)
 263     if ((summary_info.title.length != 0) &&
 264         (summary_info.title.ptr != (unsigned char *) NULL))
 265       {
 266         char
 267           *label;
 268
 269         /*
 270           Note image label.
 271         */
 272         label=(char *) NULL;
 273         if (~summary_info.title.length >= (MaxTextExtent-1))
 274           label=(char *) AcquireQuantumMemory(summary_info.title.length+
 275             MaxTextExtent,sizeof(*label));
 276         if (label == (char *) NULL)
 277           {
 278             FPX_ClearSystem();
 279             ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 280           }
 281         (void) CopyMagickString(label,(char *) summary_info.title.ptr,
 282           summary_info.title.length+1);
 283         (void) SetImageProperty(image,"label",label,exception);
 284         label=DestroyString(label);
 285       }
 286   if (summary_info.comments_valid)
 287     if ((summary_info.comments.length != 0) &&
 288         (summary_info.comments.ptr != (unsigned char *) NULL))
 289       {
 290         char
 291           *comments;
 292
 293         /*
 294           Note image comment.
 295         */
 296         comments=(char *) NULL;
 297         if (~summary_info.comments.length >= (MaxTextExtent-1))
 298           comments=(char *) AcquireQuantumMemory(summary_info.comments.length+
 299             MaxTextExtent,sizeof(*comments));
 300         if (comments == (char *) NULL)
 301           {
 302             FPX_ClearSystem();
 303             ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 304           }
 305         (void) CopyMagickString(comments,(char *) summary_info.comments.ptr,
 306           summary_info.comments.length+1);
 307         (void) SetImageProperty(image,"comment",comments,exception);
 308         comments=DestroyString(comments);
 309       }
 310   /*
 311     Determine resolution by scene specification.
 312   */
 313   for (i=1; ; i++)
 314     if (((width >> i) < tile_width) || ((height >> i) < tile_height))
 315       break;
 316   scene=i;
 317   if (image_info->number_scenes != 0)
 318     while (scene > image_info->scene)
 319     {
 320       width>>=1;
 321       height>>=1;
 322       scene--;
 323     }
 324   if (image_info->size != (char *) NULL)
 325     while ((width > image->columns) || (height > image->rows))
 326     {
 327       width>>=1;
 328       height>>=1;
 329       scene--;
 330     }
 331   image->depth=8;
 332   image->columns=width;
 333   image->rows=height;
 334   if ((colorspace.numberOfComponents % 2) == 0)
 335     image->alpha_trait=BlendPixelTrait;
 336   if (colorspace.numberOfComponents == 1)
 337     {
 338       /*
 339         Create linear colormap.
 340       */
 341       if (AcquireImageColormap(image,MaxColormapSize,exception) == MagickFalse)
 342         {
 343           FPX_ClearSystem();
 344           ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 345         }
 346     }
 347   if (image_info->ping != MagickFalse)
 348     {
 349       (void) FPX_CloseImage(flashpix);
 350       FPX_ClearSystem();
 351       return(GetFirstImageInList(image));
 352     }
 353   /*
 354     Allocate memory for the image and pixel buffer.
 355   */
 356   pixels=(unsigned char *) AcquireQuantumMemory(image->columns,(tile_height+
 357     1UL)*colorspace.numberOfComponents*sizeof(*pixels));
 358   if (pixels == (unsigned char *) NULL)
 359     {
 360       FPX_ClearSystem();
 361       (void) FPX_CloseImage(flashpix);
 362       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 363     }
 364   /*
 365     Initialize FlashPix image description.
 366   */
 367   fpx_info.numberOfComponents=colorspace.numberOfComponents;
 368   for (i=0; i < 4; i++)
 369   {
 370     fpx_info.components[i].myColorType.myDataType=DATA_TYPE_UNSIGNED_BYTE;
 371     fpx_info.components[i].horzSubSampFactor=1;
 372     fpx_info.components[i].vertSubSampFactor=1;
 373     fpx_info.components[i].columnStride=fpx_info.numberOfComponents;
 374     fpx_info.components[i].lineStride=image->columns*
 375       fpx_info.components[i].columnStride;
 376     fpx_info.components[i].theData=pixels+i;
 377   }
 378   fpx_info.components[0].myColorType.myColor=fpx_info.numberOfComponents > 2 ?
 379     NIFRGB_R : MONOCHROME;
 380   red_component=(&fpx_info.components[0]);
 381   fpx_info.components[1].myColorType.myColor=fpx_info.numberOfComponents > 2 ?
 382     NIFRGB_G : ALPHA;
 383   green_component=(&fpx_info.components[1]);
 384   fpx_info.components[2].myColorType.myColor=NIFRGB_B;
 385   blue_component=(&fpx_info.components[2]);
 386   fpx_info.components[3].myColorType.myColor=ALPHA;
 387   alpha_component=(&fpx_info.components[fpx_info.numberOfComponents-1]);
 388   FPX_SetResampleMethod(FPX_LINEAR_INTERPOLATION);
 389   /*
 390     Initialize image pixels.
 391   */
 392   for (y=0; y < (ssize_t) image->rows; y++)
 393   {
 394     q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
 395     if (q == (Quantum *) NULL)
 396       break;
 397     if ((y % tile_height) == 0)
 398       {
 399         /*
 400           Read FPX image tile (with or without viewing affine)..
 401         */
 402         if (image_info->view != (char *) NULL)
 403           fpx_status=FPX_ReadImageRectangle(flashpix,0,y,image->columns,y+
 404             tile_height-1,scene,&fpx_info);
 405         else
 406           fpx_status=FPX_ReadImageTransformRectangle(flashpix,0.0F,
 407             (float) y/image->rows,(float) image->columns/image->rows,
 408             (float) (y+tile_height-1)/image->rows,(ssize_t) image->columns,
 409             (ssize_t) tile_height,&fpx_info);
 410         if (fpx_status == FPX_LOW_MEMORY_ERROR)
 411           {
 412             pixels=(unsigned char *) RelinquishMagickMemory(pixels);
 413             (void) FPX_CloseImage(flashpix);
 414             FPX_ClearSystem();
 415             ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 416           }
 417       }
 418     /*
 419       Transfer a FPX pixels.
 420     */
 421     r=red_component->theData+(y % tile_height)*red_component->lineStride;
 422     g=green_component->theData+(y % tile_height)*green_component->lineStride;
 423     b=blue_component->theData+(y % tile_height)*blue_component->lineStride;
 424     a=alpha_component->theData+(y % tile_height)*alpha_component->lineStride;
 425     for (x=0; x < (ssize_t) image->columns; x++)
 426     {
 427       if (fpx_info.numberOfComponents > 2)
 428         {
 429           SetPixelRed(image,ScaleCharToQuantum(*r),q);
 430           SetPixelGreen(image,ScaleCharToQuantum(*g),q);
 431           SetPixelBlue(image,ScaleCharToQuantum(*b),q);
 432         }
 433       else
 434         {
 435           index=ScaleCharToQuantum(*r);
 436           SetPixelBlack(image,index,q);
 437           SetPixelRed(image,index,q);
 438           SetPixelGreen(image,index,q);
 439           SetPixelBlue(image,index,q);
 440         }
 441       SetPixelAlpha(image,OpaqueAlpha,q);
 442       if (image->alpha_trait == BlendPixelTrait)
 443         SetPixelAlpha(image,ScaleCharToQuantum(*a),q);
 444       q+=GetPixelChannels(image);
 445       r+=red_component->columnStride;
 446       g+=green_component->columnStride;
 447       b+=blue_component->columnStride;
 448       a+=alpha_component->columnStride;
 449     }
 450     if (SyncAuthenticPixels(image,exception) == MagickFalse)
 451       break;
 452     status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
 453       image->rows);
 454     if (status == MagickFalse)
 455       break;
 456   }
 457   pixels=(unsigned char *) RelinquishMagickMemory(pixels);
 458   (void) FPX_CloseImage(flashpix);
 459   FPX_ClearSystem();
 460   return(GetFirstImageInList(image));
 461 }
 462 #endif
 463 \f
 464 /*
 465 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 466 %                                                                             %
 467 %                                                                             %
 468 %                                                                             %
 469 %   R e g i s t e r F P X I m a g e                                           %
 470 %                                                                             %
 471 %                                                                             %
 472 %                                                                             %
 473 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 474 %
 475 %  RegisterFPXImage() adds attributes for the FPX image format to
 476 %  the list of supported formats.  The attributes include the image format
 477 %  tag, a method to read and/or write the format, whether the format
 478 %  supports the saving of more than one frame to the same file or blob,
 479 %  whether the format supports native in-memory I/O, and a brief
 480 %  description of the format.
 481 %
 482 %  The format of the RegisterFPXImage method is:
 483 %
 484 %      size_t RegisterFPXImage(void)
 485 %
 486 */
 487 ModuleExport size_t RegisterFPXImage(void)
 488 {
 489   MagickInfo
 490     *entry;
 491
 492   entry=SetMagickInfo("FPX");
 493 #if defined(MAGICKCORE_FPX_DELEGATE)
 494   entry->decoder=(DecodeImageHandler *) ReadFPXImage;
 495   entry->encoder=(EncodeImageHandler *) WriteFPXImage;
 496 #endif
 497   entry->adjoin=MagickFalse;
 498   entry->seekable_stream=MagickTrue;
 499   entry->blob_support=MagickFalse;
 500   entry->description=ConstantString("FlashPix Format");
 501   entry->module=ConstantString("FPX");
 502   (void) RegisterMagickInfo(entry);
 503   return(MagickImageCoderSignature);
 504 }
 505 \f
 506 /*
 507 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 508 %                                                                             %
 509 %                                                                             %
 510 %                                                                             %
 511 %   U n r e g i s t e r F P X I m a g e                                       %
 512 %                                                                             %
 513 %                                                                             %
 514 %                                                                             %
 515 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 516 %
 517 %  UnregisterFPXImage() removes format registrations made by the
 518 %  FPX module from the list of supported formats.
 519 %
 520 %  The format of the UnregisterFPXImage method is:
 521 %
 522 %      UnregisterFPXImage(void)
 523 %
 524 */
 525 ModuleExport void UnregisterFPXImage(void)
 526 {
 527   (void) UnregisterMagickInfo("FPX");
 528 }
 529 \f
 530 #if defined(MAGICKCORE_FPX_DELEGATE)
 531 /*
 532 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 533 %                                                                             %
 534 %                                                                             %
 535 %                                                                             %
 536 %   W r i t e F P X I m a g e                                                 %
 537 %                                                                             %
 538 %                                                                             %
 539 %                                                                             %
 540 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 541 %
 542 %  WriteFPXImage() writes an image in the FlashPix image format.  This
 543 %  method was contributed by BillR@corbis.com.
 544 %
 545 %  The format of the WriteFPXImage method is:
 546 %
 547 %      MagickBooleanType WriteFPXImage(const ImageInfo *image_info,
 548 %        Image *image,ExceptionInfo *exception)
 549 %
 550 %  A description of each parameter follows.
 551 %
 552 %    o image_info: the image info.
 553 %
 554 %    o image:  The image.
 555 %
 556 %    o exception: return any errors or warnings in this structure.
 557 %
 558 */
 559
 560 static void ColorTwistMultiply(FPXColorTwistMatrix first,
 561   FPXColorTwistMatrix second,FPXColorTwistMatrix *color_twist)
 562 {
 563   /*
 564     Matrix multiply.
 565   */
 566   assert(color_twist != (FPXColorTwistMatrix *) NULL);
 567   color_twist->byy=(first.byy*second.byy)+(first.byc1*second.bc1y)+
 568     (first.byc2*second.bc2y)+(first.dummy1_zero*second.dummy4_zero);
 569   color_twist->byc1=(first.byy*second.byc1)+(first.byc1*second.bc1c1)+
 570     (first.byc2*second.bc2c1)+(first.dummy1_zero*second.dummy5_zero);
 571   color_twist->byc2=(first.byy*second.byc2)+(first.byc1*second.bc1c2)+
 572     (first.byc2*second.bc2c2)+(first.dummy1_zero*second.dummy6_zero);
 573   color_twist->dummy1_zero=(first.byy*second.dummy1_zero)+
 574     (first.byc1*second.dummy2_zero)+(first.byc2*second.dummy3_zero)+
 575     (first.dummy1_zero*second.dummy7_one);
 576   color_twist->bc1y=(first.bc1y*second.byy)+(first.bc1c1*second.bc1y)+
 577     (first.bc1c2*second.bc2y)+(first.dummy2_zero*second.dummy4_zero);
 578   color_twist->bc1c1=(first.bc1y*second.byc1)+(first.bc1c1*second.bc1c1)+
 579     (first.bc1c2*second.bc2c1)+(first.dummy2_zero*second.dummy5_zero);
 580   color_twist->bc1c2=(first.bc1y*second.byc2)+(first.bc1c1*second.bc1c2)+
 581     (first.bc1c2*second.bc2c2)+(first.dummy2_zero*second.dummy6_zero);
 582   color_twist->dummy2_zero=(first.bc1y*second.dummy1_zero)+
 583     (first.bc1c1*second.dummy2_zero)+(first.bc1c2*second.dummy3_zero)+
 584     (first.dummy2_zero*second.dummy7_one);
 585   color_twist->bc2y=(first.bc2y*second.byy)+(first.bc2c1*second.bc1y)+
 586     (first.bc2c2*second.bc2y)+(first.dummy3_zero*second.dummy4_zero);
 587   color_twist->bc2c1=(first.bc2y*second.byc1)+(first.bc2c1*second.bc1c1)+
 588     (first.bc2c2*second.bc2c1)+(first.dummy3_zero*second.dummy5_zero);
 589   color_twist->bc2c2=(first.bc2y*second.byc2)+(first.bc2c1*second.bc1c2)+
 590     (first.bc2c2*second.bc2c2)+(first.dummy3_zero*second.dummy6_zero);
 591   color_twist->dummy3_zero=(first.bc2y*second.dummy1_zero)+
 592     (first.bc2c1*second.dummy2_zero)+(first.bc2c2*second.dummy3_zero)+
 593     (first.dummy3_zero*second.dummy7_one);
 594   color_twist->dummy4_zero=(first.dummy4_zero*second.byy)+
 595     (first.dummy5_zero*second.bc1y)+(first.dummy6_zero*second.bc2y)+
 596     (first.dummy7_one*second.dummy4_zero);
 597   color_twist->dummy5_zero=(first.dummy4_zero*second.byc1)+
 598     (first.dummy5_zero*second.bc1c1)+(first.dummy6_zero*second.bc2c1)+
 599     (first.dummy7_one*second.dummy5_zero);
 600   color_twist->dummy6_zero=(first.dummy4_zero*second.byc2)+
 601     (first.dummy5_zero*second.bc1c2)+(first.dummy6_zero*second.bc2c2)+
 602     (first.dummy7_one*second.dummy6_zero);
 603   color_twist->dummy7_one=(first.dummy4_zero*second.dummy1_zero)+
 604     (first.dummy5_zero*second.dummy2_zero)+
 605     (first.dummy6_zero*second.dummy3_zero)+(first.dummy7_one*second.dummy7_one);
 606 }
 607
 608 static void SetBrightness(double brightness,FPXColorTwistMatrix *color_twist)
 609 {
 610   FPXColorTwistMatrix
 611     effect,
 612     result;
 613
 614   /*
 615     Set image brightness in color twist matrix.
 616   */
 617   assert(color_twist != (FPXColorTwistMatrix *) NULL);
 618   brightness=sqrt((double) brightness);
 619   effect.byy=brightness;
 620   effect.byc1=0.0;
 621   effect.byc2=0.0;
 622   effect.dummy1_zero=0.0;
 623   effect.bc1y=0.0;
 624   effect.bc1c1=brightness;
 625   effect.bc1c2=0.0;
 626   effect.dummy2_zero=0.0;
 627   effect.bc2y=0.0;
 628   effect.bc2c1=0.0;
 629   effect.bc2c2=brightness;
 630   effect.dummy3_zero=0.0;
 631   effect.dummy4_zero=0.0;
 632   effect.dummy5_zero=0.0;
 633   effect.dummy6_zero=0.0;
 634   effect.dummy7_one=1.0;
 635   ColorTwistMultiply(*color_twist,effect,&result);
 636   *color_twist=result;
 637 }
 638
 639 static void SetColorBalance(double red,double green,double blue,
 640   FPXColorTwistMatrix *color_twist)
 641 {
 642   FPXColorTwistMatrix
 643     blue_effect,
 644     green_effect,
 645     result,
 646     rgb_effect,
 647     rg_effect,
 648     red_effect;
 649
 650   /*
 651     Set image color balance in color twist matrix.
 652   */
 653   assert(color_twist != (FPXColorTwistMatrix *) NULL);
 654   red=sqrt((double) red)-1.0;
 655   green=sqrt((double) green)-1.0;
 656   blue=sqrt((double) blue)-1.0;
 657   red_effect.byy=1.0;
 658   red_effect.byc1=0.0;
 659   red_effect.byc2=0.299*red;
 660   red_effect.dummy1_zero=0.0;
 661   red_effect.bc1y=(-0.299)*red;
 662   red_effect.bc1c1=1.0-0.299*red;
 663   red_effect.bc1c2=(-0.299)*red;
 664   red_effect.dummy2_zero=0.0;
 665   red_effect.bc2y=0.701*red;
 666   red_effect.bc2c1=0.0;
 667   red_effect.bc2c2=1.0+0.402*red;
 668   red_effect.dummy3_zero=0.0;
 669   red_effect.dummy4_zero=0.0;
 670   red_effect.dummy5_zero=0.0;
 671   red_effect.dummy6_zero=0.0;
 672   red_effect.dummy7_one=1.0;
 673   green_effect.byy=1.0;
 674   green_effect.byc1=(-0.114)*green;
 675   green_effect.byc2=(-0.299)*green;
 676   green_effect.dummy1_zero=0.0;
 677   green_effect.bc1y=(-0.587)*green;
 678   green_effect.bc1c1=1.0-0.473*green;
 679   green_effect.bc1c2=0.299*green;
 680   green_effect.dummy2_zero=0.0;
 681   green_effect.bc2y=(-0.587)*green;
 682   green_effect.bc2c1=0.114*green;
 683   green_effect.bc2c2=1.0-0.288*green;
 684   green_effect.dummy3_zero=0.0;
 685   green_effect.dummy4_zero=0.0;
 686   green_effect.dummy5_zero=0.0;
 687   green_effect.dummy6_zero=0.0;
 688   green_effect.dummy7_one=1.0;
 689   blue_effect.byy=1.0;
 690   blue_effect.byc1=0.114*blue;
 691   blue_effect.byc2=0.0;
 692   blue_effect.dummy1_zero=0.0;
 693   blue_effect.bc1y=0.886*blue;
 694   blue_effect.bc1c1=1.0+0.772*blue;
 695   blue_effect.bc1c2=0.0;
 696   blue_effect.dummy2_zero=0.0;
 697   blue_effect.bc2y=(-0.114)*blue;
 698   blue_effect.bc2c1=(-0.114)*blue;
 699   blue_effect.bc2c2=1.0-0.114*blue;
 700   blue_effect.dummy3_zero=0.0;
 701   blue_effect.dummy4_zero=0.0;
 702   blue_effect.dummy5_zero=0.0;
 703   blue_effect.dummy6_zero=0.0;
 704   blue_effect.dummy7_one=1.0;
 705   ColorTwistMultiply(red_effect,green_effect,&rg_effect);
 706   ColorTwistMultiply(rg_effect,blue_effect,&rgb_effect);
 707   ColorTwistMultiply(*color_twist,rgb_effect,&result);
 708   *color_twist=result;
 709 }
 710
 711 static void SetSaturation(double saturation,FPXColorTwistMatrix *color_twist)
 712 {
 713   FPXColorTwistMatrix
 714     effect,
 715     result;
 716
 717   /*
 718     Set image saturation in color twist matrix.
 719   */
 720   assert(color_twist != (FPXColorTwistMatrix *) NULL);
 721   effect.byy=1.0;
 722   effect.byc1=0.0;
 723   effect.byc2=0.0;
 724   effect.dummy1_zero=0.0;
 725   effect.bc1y=0.0;
 726   effect.bc1c1=saturation;
 727   effect.bc1c2=0.0;
 728   effect.dummy2_zero=0.0;
 729   effect.bc2y=0.0;
 730   effect.bc2c1=0.0;
 731   effect.bc2c2=saturation;
 732   effect.dummy3_zero=0.0;
 733   effect.dummy4_zero=0.0;
 734   effect.dummy5_zero=0.0;
 735   effect.dummy6_zero=0.0;
 736   effect.dummy7_one=1.0;
 737   ColorTwistMultiply(*color_twist,effect,&result);
 738   *color_twist=result;
 739 }
 740
 741 static MagickBooleanType WriteFPXImage(const ImageInfo *image_info,Image *image,
 742   ExceptionInfo *exception)
 743 {
 744   FPXBackground
 745     background_color;
 746
 747   FPXColorspace
 748     colorspace =
 749     {
 750       TRUE, 4,
 751       {
 752         { NIFRGB_R, DATA_TYPE_UNSIGNED_BYTE },
 753         { NIFRGB_G, DATA_TYPE_UNSIGNED_BYTE },
 754         { NIFRGB_B, DATA_TYPE_UNSIGNED_BYTE },
 755         { ALPHA, DATA_TYPE_UNSIGNED_BYTE }
 756       }
 757     };
 758
 759   const char
 760     *comment,
 761     *label;
 762
 763   FPXCompressionOption
 764     compression;
 765
 766   FPXImageDesc
 767     fpx_info;
 768
 769   FPXImageHandle
 770     *flashpix;
 771
 772   FPXStatus
 773     fpx_status;
 774
 775   FPXSummaryInformation
 776     summary_info;
 777
 778   MagickBooleanType
 779     status;
 780
 781   QuantumInfo
 782     *quantum_info;
 783
 784   QuantumType
 785     quantum_type;
 786
 787   register const Quantum
 788     *p;
 789
 790   register ssize_t
 791     i;
 792
 793   size_t
 794     length,
 795     memory_limit;
 796
 797   ssize_t
 798     y;
 799
 800   unsigned char
 801     *pixels;
 802
 803   unsigned int
 804     tile_height,
 805     tile_width;
 806
 807   /*
 808     Open input file.
 809   */
 810   assert(image_info != (const ImageInfo *) NULL);
 811   assert(image_info->signature == MagickSignature);
 812   assert(image != (Image *) NULL);
 813   assert(image->signature == MagickSignature);
 814   if (image->debug != MagickFalse)
 815     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 816   assert(exception != (ExceptionInfo *) NULL);
 817   assert(exception->signature == MagickSignature);
 818   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
 819   if (status == MagickFalse)
 820     return(status);
 821   (void) TransformImageColorspace(image,sRGBColorspace,exception);
 822   (void) CloseBlob(image);
 823   /*
 824     Initialize FPX toolkit.
 825   */
 826   image->depth=8;
 827   memory_limit=20000000;
 828   fpx_status=FPX_SetToolkitMemoryLimit(&memory_limit);
 829   if (fpx_status != FPX_OK)
 830     ThrowWriterException(DelegateError,"UnableToInitializeFPXLibrary");
 831   tile_width=64;
 832   tile_height=64;
 833   colorspace.numberOfComponents=3;
 834   if (image->alpha_trait == BlendPixelTrait)
 835     colorspace.numberOfComponents=4;
 836   if ((image_info->type != TrueColorType) &&
 837       (IsImageGray(image,exception) != MagickFalse))
 838     {
 839       colorspace.numberOfComponents=1;
 840       colorspace.theComponents[0].myColor=MONOCHROME;
 841     }
 842   background_color.color1_value=0;
 843   background_color.color2_value=0;
 844   background_color.color3_value=0;
 845   background_color.color4_value=0;
 846   compression=NONE;
 847   if (image->compression == JPEGCompression)
 848     compression=JPEG_UNSPECIFIED;
 849   if (image_info->compression == JPEGCompression)
 850     compression=JPEG_UNSPECIFIED;
 851   {
 852 #if defined(macintosh)
 853     FSSpec
 854       fsspec;
 855
 856     FilenameToFSSpec(filename,&fsspec);
 857     fpx_status=FPX_CreateImageByFilename((const FSSpec &) fsspec,image->columns,
 858 #else
 859     fpx_status=FPX_CreateImageByFilename(image->filename,image->columns,
 860 #endif
 861       image->rows,tile_width,tile_height,colorspace,background_color,
 862       compression,&flashpix);
 863   }
 864   if (fpx_status != FPX_OK)
 865     return(status);
 866   if (compression == JPEG_UNSPECIFIED)
 867     {
 868       /*
 869         Initialize the compression by quality for the entire image.
 870       */
 871       fpx_status=FPX_SetJPEGCompression(flashpix,(unsigned short)
 872         image->quality == UndefinedCompressionQuality ? 75 : image->quality);
 873       if (fpx_status != FPX_OK)
 874         ThrowWriterException(DelegateError,"UnableToSetJPEGLevel");
 875     }
 876   /*
 877     Set image summary info.
 878   */
 879   summary_info.title_valid=MagickFalse;
 880   summary_info.subject_valid=MagickFalse;
 881   summary_info.author_valid=MagickFalse;
 882   summary_info.comments_valid=MagickFalse;
 883   summary_info.keywords_valid=MagickFalse;
 884   summary_info.OLEtemplate_valid=MagickFalse;
 885   summary_info.last_author_valid=MagickFalse;
 886   summary_info.rev_number_valid=MagickFalse;
 887   summary_info.edit_time_valid=MagickFalse;
 888   summary_info.last_printed_valid=MagickFalse;
 889   summary_info.create_dtm_valid=MagickFalse;
 890   summary_info.last_save_dtm_valid=MagickFalse;
 891   summary_info.page_count_valid=MagickFalse;
 892   summary_info.word_count_valid=MagickFalse;
 893   summary_info.char_count_valid=MagickFalse;
 894   summary_info.thumbnail_valid=MagickFalse;
 895   summary_info.appname_valid=MagickFalse;
 896   summary_info.security_valid=MagickFalse;
 897   summary_info.title.ptr=(unsigned char *) NULL;
 898   label=GetImageProperty(image,"label",exception);
 899   if (label != (const char *) NULL)
 900     {
 901       /*
 902         Note image label.
 903       */
 904       summary_info.title_valid=MagickTrue;
 905       length=strlen(label);
 906       summary_info.title.length=length;
 907       if (~length >= (MaxTextExtent-1))
 908         summary_info.title.ptr=(unsigned char *) AcquireQuantumMemory(
 909           length+MaxTextExtent,sizeof(*summary_info.title.ptr));
 910       if (summary_info.title.ptr == (unsigned char *) NULL)
 911         ThrowWriterException(DelegateError,"UnableToSetImageTitle");
 912       (void) CopyMagickString((char *) summary_info.title.ptr,label,
 913         MaxTextExtent);
 914     }
 915   comment=GetImageProperty(image,"comment",exception);
 916   if (comment != (const char *) NULL)
 917     {
 918       /*
 919         Note image comment.
 920       */
 921       summary_info.comments_valid=MagickTrue;
 922       summary_info.comments.ptr=(unsigned char *) AcquireString(comment);
 923       summary_info.comments.length=strlen(comment);
 924     }
 925   fpx_status=FPX_SetSummaryInformation(flashpix,&summary_info);
 926   if (fpx_status != FPX_OK)
 927     ThrowWriterException(DelegateError,"UnableToSetSummaryInfo");
 928   /*
 929     Initialize FlashPix image description.
 930   */
 931   quantum_info=AcquireQuantumInfo(image_info,image);
 932   if (quantum_info == (QuantumInfo *) NULL)
 933     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 934   pixels=GetQuantumPixels(quantum_info);
 935   fpx_info.numberOfComponents=colorspace.numberOfComponents;
 936   for (i=0; i < (ssize_t) fpx_info.numberOfComponents; i++)
 937   {
 938     fpx_info.components[i].myColorType.myDataType=DATA_TYPE_UNSIGNED_BYTE;
 939     fpx_info.components[i].horzSubSampFactor=1;
 940     fpx_info.components[i].vertSubSampFactor=1;
 941     fpx_info.components[i].columnStride=fpx_info.numberOfComponents;
 942     fpx_info.components[i].lineStride=
 943       image->columns*fpx_info.components[i].columnStride;
 944     fpx_info.components[i].theData=pixels+i;
 945   }
 946   fpx_info.components[0].myColorType.myColor=fpx_info.numberOfComponents != 1
 947     ? NIFRGB_R : MONOCHROME;
 948   fpx_info.components[1].myColorType.myColor=NIFRGB_G;
 949   fpx_info.components[2].myColorType.myColor=NIFRGB_B;
 950   fpx_info.components[3].myColorType.myColor=ALPHA;
 951   /*
 952     Write image pixelss.
 953   */
 954   quantum_type=RGBQuantum;
 955   if (image->alpha_trait == BlendPixelTrait)
 956     quantum_type=RGBAQuantum;
 957   if (fpx_info.numberOfComponents == 1)
 958     quantum_type=GrayQuantum;
 959   for (y=0; y < (ssize_t) image->rows; y++)
 960   {
 961     p=GetVirtualPixels(image,0,y,image->columns,1,exception);
 962     if (p == (const Quantum *) NULL)
 963       break;
 964     length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
 965       quantum_type,pixels,exception);
 966     fpx_status=FPX_WriteImageLine(flashpix,&fpx_info);
 967     if (fpx_status != FPX_OK)
 968       break;
 969     status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
 970       image->rows);
 971     if (status == MagickFalse)
 972       break;
 973   }
 974   quantum_info=DestroyQuantumInfo(quantum_info);
 975   if (image_info->view != (char *) NULL)
 976     {
 977       FPXAffineMatrix
 978         affine;
 979
 980       FPXColorTwistMatrix
 981         color_twist;
 982
 983       FPXContrastAdjustment
 984         contrast;
 985
 986       FPXFilteringValue
 987         sharpen;
 988
 989       FPXResultAspectRatio
 990         aspect_ratio;
 991
 992       FPXROI
 993         view_rect;
 994
 995       MagickBooleanType
 996         affine_valid,
 997         aspect_ratio_valid,
 998         color_twist_valid,
 999         contrast_valid,
1000         sharpen_valid,
1001         view_rect_valid;
1002
1003       /*
1004         Initialize default viewing parameters.
1005       */
1006       contrast=1.0;
1007       contrast_valid=MagickTrue;
1008       color_twist.byy=1.0;
1009       color_twist.byc1=0.0;
1010       color_twist.byc2=0.0;
1011       color_twist.dummy1_zero=0.0;
1012       color_twist.bc1y=0.0;
1013       color_twist.bc1c1=1.0;
1014       color_twist.bc1c2=0.0;
1015       color_twist.dummy2_zero=0.0;
1016       color_twist.bc2y=0.0;
1017       color_twist.bc2c1=0.0;
1018       color_twist.bc2c2=1.0;
1019       color_twist.dummy3_zero=0.0;
1020       color_twist.dummy4_zero=0.0;
1021       color_twist.dummy5_zero=0.0;
1022       color_twist.dummy6_zero=0.0;
1023       color_twist.dummy7_one=1.0;
1024       color_twist_valid=MagickTrue;
1025       sharpen=0.0;
1026       sharpen_valid=MagickTrue;
1027       aspect_ratio=(double) image->columns/image->rows;
1028       aspect_ratio_valid=MagickTrue;
1029       view_rect.left=(float) 0.1;
1030       view_rect.width=aspect_ratio-0.2;
1031       view_rect.top=(float) 0.1;
1032       view_rect.height=(float) 0.8; /* 1.0-0.2 */
1033       view_rect_valid=MagickTrue;
1034       affine.a11=1.0;
1035       affine.a12=0.0;
1036       affine.a13=0.0;
1037       affine.a14=0.0;
1038       affine.a21=0.0;
1039       affine.a22=1.0;
1040       affine.a23=0.0;
1041       affine.a24=0.0;
1042       affine.a31=0.0;
1043       affine.a32=0.0;
1044       affine.a33=1.0;
1045       affine.a34=0.0;
1046       affine.a41=0.0;
1047       affine.a42=0.0;
1048       affine.a43=0.0;
1049       affine.a44=1.0;
1050       affine_valid=MagickTrue;
1051       if (0)
1052         {
1053           /*
1054             Color color twist.
1055           */
1056           SetBrightness(0.5,&color_twist);
1057           SetSaturation(0.5,&color_twist);
1058           SetColorBalance(0.5,1.0,1.0,&color_twist);
1059           color_twist_valid=MagickTrue;
1060         }
1061       if (affine_valid != MagickFalse)
1062         {
1063           fpx_status=FPX_SetImageAffineMatrix(flashpix,&affine);
1064           if (fpx_status != FPX_OK)
1065             ThrowWriterException(DelegateError,"UnableToSetAffineMatrix");
1066         }
1067       if (aspect_ratio_valid != MagickFalse)
1068         {
1069           fpx_status=FPX_SetImageResultAspectRatio(flashpix,&aspect_ratio);
1070           if (fpx_status != FPX_OK)
1071             ThrowWriterException(DelegateError,"UnableToSetAspectRatio");
1072         }
1073       if (color_twist_valid != MagickFalse)
1074         {
1075           fpx_status=FPX_SetImageColorTwistMatrix(flashpix,&color_twist);
1076           if (fpx_status != FPX_OK)
1077             ThrowWriterException(DelegateError,"UnableToSetColorTwist");
1078         }
1079       if (contrast_valid != MagickFalse)
1080         {
1081           fpx_status=FPX_SetImageContrastAdjustment(flashpix,&contrast);
1082           if (fpx_status != FPX_OK)
1083             ThrowWriterException(DelegateError,"UnableToSetContrast");
1084         }
1085       if (sharpen_valid != MagickFalse)
1086         {
1087           fpx_status=FPX_SetImageFilteringValue(flashpix,&sharpen);
1088           if (fpx_status != FPX_OK)
1089             ThrowWriterException(DelegateError,"UnableToSetFilteringValue");
1090         }
1091       if (view_rect_valid != MagickFalse)
1092         {
1093           fpx_status=FPX_SetImageROI(flashpix,&view_rect);
1094           if (fpx_status != FPX_OK)
1095             ThrowWriterException(DelegateError,"UnableToSetRegionOfInterest");
1096         }
1097     }
1098   (void) FPX_CloseImage(flashpix);
1099   FPX_ClearSystem();
1100   return(MagickTrue);
1101 }
1102 #endif