granicus.if.org Git - imagemagick/blob - coders/jp2.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                              JJJ  PPPP    222                               %
   7 %                               J   P   P  2   2                              %
   8 %                               J   PPPP     22                               %
   9 %                            J  J   P       2                                 %
  10 %                             JJ    P      22222                              %
  11 %                                                                             %
  12 %                                                                             %
  13 %                     Read/Write JPEG-2000 Image Format                       %
  14 %                                                                             %
  15 %                                John Cristy                                  %
  16 %                                Nathan Brown                                 %
  17 %                                 June 2001                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2012 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/blob.h"
  45 #include "MagickCore/blob-private.h"
  46 #include "MagickCore/cache.h"
  47 #include "MagickCore/colorspace.h"
  48 #include "MagickCore/colorspace-private.h"
  49 #include "MagickCore/color.h"
  50 #include "MagickCore/color-private.h"
  51 #include "MagickCore/exception.h"
  52 #include "MagickCore/exception-private.h"
  53 #include "MagickCore/image.h"
  54 #include "MagickCore/image-private.h"
  55 #include "MagickCore/list.h"
  56 #include "MagickCore/magick.h"
  57 #include "MagickCore/memory_.h"
  58 #include "MagickCore/monitor.h"
  59 #include "MagickCore/monitor-private.h"
  60 #include "MagickCore/option.h"
  61 #include "MagickCore/pixel-accessor.h"
  62 #include "MagickCore/profile.h"
  63 #include "MagickCore/quantum-private.h"
  64 #include "MagickCore/static.h"
  65 #include "MagickCore/statistic.h"
  66 #include "MagickCore/string_.h"
  67 #include "MagickCore/module.h"
  68 #if defined(MAGICKCORE_JP2_DELEGATE)
  69 #ifndef JAS_IMAGE_CM_GRAY
  70 #define JAS_IMAGE_CM_GRAY JAS_IMAGE_CS_GRAY
  71 #endif
  72 #ifndef JAS_IMAGE_CM_RGB
  73 #define JAS_IMAGE_CM_RGB JAS_IMAGE_CS_RGB
  74 #endif
  75 #if !defined(uchar)
  76 #define uchar  unsigned char
  77 #endif
  78 #if !defined(ushort)
  79 #define ushort  unsigned short
  80 #endif
  81 #if !defined(uint)
  82 #define uint  unsigned int
  83 #endif
  84 #if !defined(ssize_tssize_t)
  85 #define ssize_tssize_t  long long
  86 #endif
  87 #if !defined(ussize_tssize_t)
  88 #define ussize_tssize_t  unsigned long long
  89 #endif
  90
  91 #undef PACKAGE_NAME
  92 #undef PACKAGE_STRING
  93 #undef PACKAGE_TARNAME
  94 #undef PACKAGE_VERSION
  95 #include "jasper/jasper.h"
  96 #undef PACKAGE_NAME
  97 #undef PACKAGE_STRING
  98 #undef PACKAGE_TARNAME
  99 #undef PACKAGE_VERSION
 100
 101 #endif
 102 \f
 103 /*
 104   Forward declarations.
 105 */
 106 #if defined(MAGICKCORE_JP2_DELEGATE)
 107 static MagickBooleanType
 108   WriteJP2Image(const ImageInfo *,Image *,ExceptionInfo *);
 109
 110 static volatile MagickBooleanType
 111   instantiate_jp2 = MagickFalse;
 112 #endif
 113 \f
 114 /*
 115 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 116 %                                                                             %
 117 %                                                                             %
 118 %                                                                             %
 119 %   I s J P 2                                                                 %
 120 %                                                                             %
 121 %                                                                             %
 122 %                                                                             %
 123 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 124 %
 125 %  IsJP2() returns MagickTrue if the image format type, identified by the
 126 %  magick string, is JP2.
 127 %
 128 %  The format of the IsJP2 method is:
 129 %
 130 %      MagickBooleanType IsJP2(const unsigned char *magick,const size_t length)
 131 %
 132 %  A description of each parameter follows:
 133 %
 134 %    o magick: compare image format pattern against these bytes.
 135 %
 136 %    o length: Specifies the length of the magick string.
 137 %
 138 */
 139 static MagickBooleanType IsJP2(const unsigned char *magick,const size_t length)
 140 {
 141   if (length < 9)
 142     return(MagickFalse);
 143   if (memcmp(magick+4,"\152\120\040\040\015",5) == 0)
 144     return(MagickTrue);
 145   return(MagickFalse);
 146 }
 147 \f
 148 /*
 149 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 150 %                                                                             %
 151 %                                                                             %
 152 %                                                                             %
 153 %   I s J P C                                                                 %
 154 %                                                                             %
 155 %                                                                             %
 156 %                                                                             %
 157 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 158 %
 159 %  IsJPC()() returns MagickTrue if the image format type, identified by the
 160 %  magick string, is JPC.
 161 %
 162 %  The format of the IsJPC method is:
 163 %
 164 %      MagickBooleanType IsJPC(const unsigned char *magick,const size_t length)
 165 %
 166 %  A description of each parameter follows:
 167 %
 168 %    o magick: compare image format pattern against these bytes.
 169 %
 170 %    o length: Specifies the length of the magick string.
 171 %
 172 */
 173 static MagickBooleanType IsJPC(const unsigned char *magick,const size_t length)
 174 {
 175   if (length < 2)
 176     return(MagickFalse);
 177   if (memcmp(magick,"\377\117",2) == 0)
 178     return(MagickTrue);
 179   return(MagickFalse);
 180 }
 181 \f
 182 /*
 183 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 184 %                                                                             %
 185 %                                                                             %
 186 %                                                                             %
 187 %   R e a d J P 2 I m a g e                                                   %
 188 %                                                                             %
 189 %                                                                             %
 190 %                                                                             %
 191 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 192 %
 193 %  ReadJP2Image() reads a JPEG 2000 Image file (JP2) or JPEG 2000
 194 %  codestream (JPC) image file and returns it.  It allocates the memory
 195 %  necessary for the new Image structure and returns a pointer to the new
 196 %  image or set of images.
 197 %
 198 %  JP2 support is originally written by Nathan Brown, nathanbrown@letu.edu.
 199 %
 200 %  The format of the ReadJP2Image method is:
 201 %
 202 %      Image *ReadJP2Image(const ImageInfo *image_info,
 203 %        ExceptionInfo *exception)
 204 %
 205 %  A description of each parameter follows:
 206 %
 207 %    o image_info: the image info.
 208 %
 209 %    o exception: return any errors or warnings in this structure.
 210 %
 211 */
 212 #if defined(MAGICKCORE_JP2_DELEGATE)
 213
 214 typedef struct _StreamManager
 215 {
 216   jas_stream_t
 217     *stream;
 218
 219   Image
 220     *image;
 221 } StreamManager;
 222
 223 static int BlobRead(jas_stream_obj_t *object,char *buffer,const int length)
 224 {
 225   ssize_t
 226     count;
 227
 228   StreamManager
 229     *source;
 230
 231   source=(StreamManager *) object;
 232   count=ReadBlob(source->image,(size_t) length,(unsigned char *) buffer);
 233   return((int) count);
 234 }
 235
 236 static int BlobWrite(jas_stream_obj_t *object,char *buffer,const int length)
 237 {
 238   ssize_t
 239     count;
 240
 241   StreamManager
 242     *source;
 243
 244   source=(StreamManager *) object;
 245   count=WriteBlob(source->image,(size_t) length,(unsigned char *) buffer);
 246   return((int) count);
 247 }
 248
 249 static long BlobSeek(jas_stream_obj_t *object,long offset,int origin)
 250 {
 251   StreamManager
 252     *source;
 253
 254   source=(StreamManager *) object;
 255   return((long) SeekBlob(source->image,offset,origin));
 256 }
 257
 258 static int BlobClose(jas_stream_obj_t *object)
 259 {
 260   StreamManager
 261     *source;
 262
 263   source=(StreamManager *) object;
 264   (void) CloseBlob(source->image);
 265   free(source);
 266   source=(StreamManager *) NULL;
 267   return(0);
 268 }
 269
 270 static inline size_t MagickMax(const size_t x,const size_t y)
 271 {
 272   if (x > y)
 273     return(x);
 274   return(y);
 275 }
 276
 277 static inline size_t MagickMin(const size_t x,const size_t y)
 278 {
 279   if (x < y)
 280     return(x);
 281   return(y);
 282 }
 283
 284 static jas_stream_t *JP2StreamManager(Image *image)
 285 {
 286   static jas_stream_ops_t
 287     StreamOperators =
 288     {
 289       BlobRead,
 290       BlobWrite,
 291       BlobSeek,
 292       BlobClose
 293     };
 294
 295   jas_stream_t
 296     *stream;
 297
 298   StreamManager
 299     *source;
 300
 301   stream=(jas_stream_t *) jas_malloc(sizeof(*stream));
 302   if (stream == (jas_stream_t *) NULL)
 303     return((jas_stream_t *) NULL);
 304   (void) ResetMagickMemory(stream,0,sizeof(*stream));
 305   stream->rwlimit_=(-1);
 306   stream->obj_=(jas_stream_obj_t *) jas_malloc(sizeof(StreamManager));
 307   if (stream->obj_ == (jas_stream_obj_t *) NULL)
 308     return((jas_stream_t *) NULL);
 309   (void) ResetMagickMemory(stream->obj_,0,sizeof(StreamManager));
 310   stream->ops_=(&StreamOperators);
 311   stream->openmode_=JAS_STREAM_READ | JAS_STREAM_WRITE | JAS_STREAM_BINARY;
 312   stream->bufbase_=(unsigned char *) jas_malloc(JAS_STREAM_BUFSIZE+
 313     JAS_STREAM_MAXPUTBACK);
 314   if (stream->bufbase_ == (void *) NULL)
 315     {
 316       stream->bufbase_=stream->tinybuf_;
 317       stream->bufsize_=1;
 318     }
 319   else
 320     {
 321       stream->bufmode_=JAS_STREAM_FREEBUF | JAS_STREAM_BUFMODEMASK;
 322       stream->bufsize_=JAS_STREAM_BUFSIZE;
 323     }
 324   stream->bufstart_=(&stream->bufbase_[JAS_STREAM_MAXPUTBACK]);
 325   stream->ptr_=stream->bufstart_;
 326   stream->cnt_=0;
 327   source=(StreamManager *) stream->obj_;
 328   source->image=image;
 329   return(stream);
 330 }
 331
 332 static Image *ReadJP2Image(const ImageInfo *image_info,ExceptionInfo *exception)
 333 {
 334   Image
 335     *image;
 336
 337   jas_cmprof_t
 338     *cm_profile;
 339
 340   jas_iccprof_t
 341     *icc_profile;
 342
 343   jas_image_t
 344     *jp2_image;
 345
 346   jas_matrix_t
 347     *pixels[4];
 348
 349   jas_stream_t
 350     *jp2_stream;
 351
 352   MagickBooleanType
 353     status;
 354
 355   QuantumAny
 356     pixel,
 357     range[4];
 358
 359   register ssize_t
 360     i,
 361     x;
 362
 363   register Quantum
 364     *q;
 365
 366   size_t
 367     maximum_component_depth,
 368     number_components,
 369     x_step[4],
 370     y_step[4];
 371
 372   ssize_t
 373     components[4],
 374     y;
 375
 376   /*
 377     Open image file.
 378   */
 379   assert(image_info != (const ImageInfo *) NULL);
 380   assert(image_info->signature == MagickSignature);
 381   if (image_info->debug != MagickFalse)
 382     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 383       image_info->filename);
 384   assert(exception != (ExceptionInfo *) NULL);
 385   assert(exception->signature == MagickSignature);
 386   image=AcquireImage(image_info,exception);
 387   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 388   if (status == MagickFalse)
 389     {
 390       image=DestroyImageList(image);
 391       return((Image *) NULL);
 392     }
 393   /*
 394     Initialize JPEG 2000 API.
 395   */
 396   jp2_stream=JP2StreamManager(image);
 397   if (jp2_stream == (jas_stream_t *) NULL)
 398     ThrowReaderException(DelegateError,"UnableToManageJP2Stream");
 399   jp2_image=jas_image_decode(jp2_stream,-1,0);
 400   if (jp2_image == (jas_image_t *) NULL)
 401     {
 402       (void) jas_stream_close(jp2_stream);
 403       ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
 404     }
 405   image->columns=jas_image_width(jp2_image);
 406   image->rows=jas_image_height(jp2_image);
 407   image->compression=JPEG2000Compression;
 408   switch (jas_clrspc_fam(jas_image_clrspc(jp2_image)))
 409   {
 410     case JAS_CLRSPC_FAM_RGB:
 411     {
 412       SetImageColorspace(image,RGBColorspace,exception);
 413       components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_R);
 414       components[1]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_G);
 415       components[2]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_B);
 416       if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
 417         {
 418           (void) jas_stream_close(jp2_stream);
 419           jas_image_destroy(jp2_image);
 420           ThrowReaderException(CorruptImageError,"MissingImageChannel");
 421         }
 422       number_components=3;
 423       components[3]=jas_image_getcmptbytype(jp2_image,3);
 424       if (components[3] > 0)
 425         {
 426           image->matte=MagickTrue;
 427           number_components++;
 428         }
 429       break;
 430     }
 431     case JAS_CLRSPC_FAM_GRAY:
 432     {
 433       SetImageColorspace(image,GRAYColorspace,exception);
 434       components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_GRAY_Y);
 435       if (components[0] < 0)
 436         {
 437           (void) jas_stream_close(jp2_stream);
 438           jas_image_destroy(jp2_image);
 439           ThrowReaderException(CorruptImageError,"MissingImageChannel");
 440         }
 441       number_components=1;
 442       break;
 443     }
 444     case JAS_CLRSPC_FAM_YCBCR:
 445     {
 446       SetImageColorspace(image,YCbCrColorspace,exception);
 447       components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_Y);
 448       components[1]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_CB);
 449       components[2]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_CR);
 450       if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
 451         {
 452           (void) jas_stream_close(jp2_stream);
 453           jas_image_destroy(jp2_image);
 454           ThrowReaderException(CorruptImageError,"MissingImageChannel");
 455         }
 456       number_components=3;
 457       components[3]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_UNKNOWN);
 458       if (components[3] > 0)
 459         {
 460           image->matte=MagickTrue;
 461           number_components++;
 462         }
 463       break;
 464     }
 465     case JAS_CLRSPC_FAM_XYZ:
 466     {
 467       SetImageColorspace(image,XYZColorspace,exception);
 468       components[0]=jas_image_getcmptbytype(jp2_image,0);
 469       components[1]=jas_image_getcmptbytype(jp2_image,1);
 470       components[2]=jas_image_getcmptbytype(jp2_image,2);
 471       if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
 472         {
 473           (void) jas_stream_close(jp2_stream);
 474           jas_image_destroy(jp2_image);
 475           ThrowReaderException(CorruptImageError,"MissingImageChannel");
 476         }
 477       number_components=3;
 478       components[3]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_UNKNOWN);
 479       if (components[3] > 0)
 480         {
 481           image->matte=MagickTrue;
 482           number_components++;
 483         }
 484       break;
 485     }
 486     case JAS_CLRSPC_FAM_LAB:
 487     {
 488       SetImageColorspace(image,LabColorspace,exception);
 489       components[0]=jas_image_getcmptbytype(jp2_image,0);
 490       components[1]=jas_image_getcmptbytype(jp2_image,1);
 491       components[2]=jas_image_getcmptbytype(jp2_image,2);
 492       if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
 493         {
 494           (void) jas_stream_close(jp2_stream);
 495           jas_image_destroy(jp2_image);
 496           ThrowReaderException(CorruptImageError,"MissingImageChannel");
 497         }
 498       number_components=3;
 499       components[3]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_UNKNOWN);
 500       if (components[3] > 0)
 501         {
 502           image->matte=MagickTrue;
 503           number_components++;
 504         }
 505       break;
 506     }
 507     default:
 508     {
 509       (void) jas_stream_close(jp2_stream);
 510       jas_image_destroy(jp2_image);
 511       ThrowReaderException(CoderError,"ColorspaceModelIsNotSupported");
 512     }
 513   }
 514   for (i=0; i < (ssize_t) number_components; i++)
 515   {
 516     size_t
 517       height,
 518       width;
 519
 520     width=(size_t) (jas_image_cmptwidth(jp2_image,components[i])*
 521       jas_image_cmpthstep(jp2_image,components[i]));
 522     height=(size_t) (jas_image_cmptheight(jp2_image,components[i])*
 523       jas_image_cmptvstep(jp2_image,components[i]));
 524     x_step[i]=(unsigned int) jas_image_cmpthstep(jp2_image,components[i]);
 525     y_step[i]=(unsigned int) jas_image_cmptvstep(jp2_image,components[i]);
 526     if ((width != image->columns) || (height != image->rows) ||
 527         (jas_image_cmpttlx(jp2_image,components[i]) != 0) ||
 528         (jas_image_cmpttly(jp2_image,components[i]) != 0) ||
 529         (jas_image_cmptsgnd(jp2_image,components[i]) != MagickFalse))
 530       {
 531         (void) jas_stream_close(jp2_stream);
 532         jas_image_destroy(jp2_image);
 533         ThrowReaderException(CoderError,"IrregularChannelGeometryNotSupported");
 534       }
 535   }
 536   /*
 537     Convert JPEG 2000 pixels.
 538   */
 539   image->matte=number_components > 3 ? MagickTrue : MagickFalse;
 540   maximum_component_depth=0;
 541   for (i=0; i < (ssize_t) number_components; i++)
 542   {
 543     maximum_component_depth=(unsigned int) MagickMax((size_t)
 544       jas_image_cmptprec(jp2_image,components[i]),(size_t)
 545       maximum_component_depth);
 546     pixels[i]=jas_matrix_create(1,(int) (image->columns/x_step[i]));
 547     if (pixels[i] == (jas_matrix_t *) NULL)
 548       {
 549         for (--i; i >= 0; i--)
 550           jas_matrix_destroy(pixels[i]);
 551         jas_image_destroy(jp2_image);
 552         ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 553       }
 554   }
 555   image->depth=maximum_component_depth;
 556   if (image_info->ping != MagickFalse)
 557     {
 558       (void) jas_stream_close(jp2_stream);
 559       jas_image_destroy(jp2_image);
 560       return(GetFirstImageInList(image));
 561     }
 562   for (i=0; i < (ssize_t) number_components; i++)
 563     range[i]=GetQuantumRange((size_t) jas_image_cmptprec(jp2_image,
 564       components[i]));
 565   for (y=0; y < (ssize_t) image->rows; y++)
 566   {
 567     q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
 568     if (q == (Quantum *) NULL)
 569       break;
 570     for (i=0; i < (ssize_t) number_components; i++)
 571       (void) jas_image_readcmpt(jp2_image,(short) components[i],0,
 572         (jas_image_coord_t) (y/y_step[i]),(jas_image_coord_t) (image->columns/
 573         x_step[i]),1,pixels[i]);
 574     switch (number_components)
 575     {
 576       case 1:
 577       {
 578         /*
 579           Grayscale.
 580         */
 581         for (x=0; x < (ssize_t) image->columns; x++)
 582         {
 583           pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
 584           SetPixelGray(image,ScaleAnyToQuantum((QuantumAny) pixel,range[0]),q);
 585           q+=GetPixelChannels(image);
 586         }
 587         break;
 588       }
 589       case 3:
 590       {
 591         /*
 592           RGB.
 593         */
 594         for (x=0; x < (ssize_t) image->columns; x++)
 595         {
 596           pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
 597           SetPixelRed(image,ScaleAnyToQuantum((QuantumAny) pixel,range[0]),q);
 598           pixel=(QuantumAny) jas_matrix_getv(pixels[1],x/x_step[1]);
 599           SetPixelGreen(image,ScaleAnyToQuantum((QuantumAny) pixel,range[1]),q);
 600           pixel=(QuantumAny) jas_matrix_getv(pixels[2],x/x_step[2]);
 601           SetPixelBlue(image,ScaleAnyToQuantum((QuantumAny) pixel,range[2]),q);
 602           q+=GetPixelChannels(image);
 603         }
 604         break;
 605       }
 606       case 4:
 607       {
 608         /*
 609           RGBA.
 610         */
 611         for (x=0; x < (ssize_t) image->columns; x++)
 612         {
 613           pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
 614           SetPixelRed(image,ScaleAnyToQuantum((QuantumAny) pixel,range[0]),q);
 615           pixel=(QuantumAny) jas_matrix_getv(pixels[1],x/x_step[1]);
 616           SetPixelGreen(image,ScaleAnyToQuantum((QuantumAny) pixel,range[1]),q);
 617           pixel=(QuantumAny) jas_matrix_getv(pixels[2],x/x_step[2]);
 618           SetPixelBlue(image,ScaleAnyToQuantum((QuantumAny) pixel,range[2]),q);
 619           pixel=(QuantumAny) jas_matrix_getv(pixels[3],x/x_step[3]);
 620           SetPixelAlpha(image,ScaleAnyToQuantum((QuantumAny) pixel,range[3]),q);
 621           q+=GetPixelChannels(image);
 622         }
 623         break;
 624       }
 625     }
 626     if (SyncAuthenticPixels(image,exception) == MagickFalse)
 627       break;
 628     status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
 629       image->rows);
 630     if (status == MagickFalse)
 631       break;
 632   }
 633   cm_profile=jas_image_cmprof(jp2_image);
 634   icc_profile=(jas_iccprof_t *) NULL;
 635   if (cm_profile != (jas_cmprof_t *) NULL)
 636     icc_profile=jas_iccprof_createfromcmprof(cm_profile);
 637   if (icc_profile != (jas_iccprof_t *) NULL)
 638     {
 639       jas_stream_t
 640         *icc_stream;
 641
 642       icc_stream=jas_stream_memopen(NULL,0);
 643       if ((icc_stream != (jas_stream_t *) NULL) &&
 644           (jas_iccprof_save(icc_profile,icc_stream) == 0) &&
 645           (jas_stream_flush(icc_stream) == 0))
 646         {
 647           StringInfo
 648             *icc_profile,
 649             *profile;
 650
 651           jas_stream_memobj_t
 652             *blob;
 653
 654           /*
 655             Extract the icc profile, handle errors without much noise.
 656           */
 657           blob=(jas_stream_memobj_t *) icc_stream->obj_;
 658           if (image->debug != MagickFalse)
 659             (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 660               "Profile: ICC, %.20g bytes",(double) blob->len_);
 661           profile=BlobToStringInfo(blob->buf_,blob->len_);
 662           if (profile == (StringInfo *) NULL)
 663             ThrowReaderException(CorruptImageError,"MemoryAllocationFailed");
 664           icc_profile=(StringInfo *) GetImageProfile(image,"icc");
 665           if (icc_profile == (StringInfo *) NULL)
 666             (void) SetImageProfile(image,"icc",profile,exception);
 667           else
 668             (void) ConcatenateStringInfo(icc_profile,profile);
 669           profile=DestroyStringInfo(profile);
 670           (void) jas_stream_close(icc_stream);
 671         }
 672     }
 673   (void) jas_stream_close(jp2_stream);
 674   jas_image_destroy(jp2_image);
 675   for (i=0; i < (ssize_t) number_components; i++)
 676     jas_matrix_destroy(pixels[i]);
 677   return(GetFirstImageInList(image));
 678 }
 679 #endif
 680 \f
 681 /*
 682 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 683 %                                                                             %
 684 %                                                                             %
 685 %                                                                             %
 686 %   R e g i s t e r J P 2 I m a g e                                           %
 687 %                                                                             %
 688 %                                                                             %
 689 %                                                                             %
 690 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 691 %
 692 %  RegisterJP2Image() adds attributes for the JP2 image format to the list of
 693 %  supported formats.  The attributes include the image format tag, a method
 694 %  method to read and/or write the format, whether the format supports the
 695 %  saving of more than one frame to the same file or blob, whether the format
 696 %  supports native in-memory I/O, and a brief description of the format.
 697 %
 698 %  The format of the RegisterJP2Image method is:
 699 %
 700 %      size_t RegisterJP2Image(void)
 701 %
 702 */
 703 ModuleExport size_t RegisterJP2Image(void)
 704 {
 705   MagickInfo
 706     *entry;
 707
 708   entry=SetMagickInfo("JP2");
 709   entry->description=ConstantString("JPEG-2000 File Format Syntax");
 710   entry->module=ConstantString("JP2");
 711   entry->magick=(IsImageFormatHandler *) IsJP2;
 712   entry->adjoin=MagickFalse;
 713   entry->seekable_stream=MagickTrue;
 714   entry->thread_support=NoThreadSupport;
 715 #if defined(MAGICKCORE_JP2_DELEGATE)
 716   entry->decoder=(DecodeImageHandler *) ReadJP2Image;
 717   entry->encoder=(EncodeImageHandler *) WriteJP2Image;
 718 #endif
 719   (void) RegisterMagickInfo(entry);
 720   entry=SetMagickInfo("JPC");
 721   entry->description=ConstantString("JPEG-2000 Code Stream Syntax");
 722   entry->module=ConstantString("JP2");
 723   entry->magick=(IsImageFormatHandler *) IsJPC;
 724   entry->adjoin=MagickFalse;
 725   entry->seekable_stream=MagickTrue;
 726   entry->thread_support=NoThreadSupport;
 727 #if defined(MAGICKCORE_JP2_DELEGATE)
 728   entry->decoder=(DecodeImageHandler *) ReadJP2Image;
 729   entry->encoder=(EncodeImageHandler *) WriteJP2Image;
 730 #endif
 731   (void) RegisterMagickInfo(entry);
 732   entry=SetMagickInfo("J2C");
 733   entry->description=ConstantString("JPEG-2000 Code Stream Syntax");
 734   entry->module=ConstantString("JP2");
 735   entry->magick=(IsImageFormatHandler *) IsJPC;
 736   entry->adjoin=MagickFalse;
 737   entry->seekable_stream=MagickTrue;
 738   entry->thread_support=NoThreadSupport;
 739 #if defined(MAGICKCORE_JP2_DELEGATE)
 740   entry->decoder=(DecodeImageHandler *) ReadJP2Image;
 741   entry->encoder=(EncodeImageHandler *) WriteJP2Image;
 742 #endif
 743   (void) RegisterMagickInfo(entry);
 744   entry=SetMagickInfo("J2K");
 745   entry->description=ConstantString("JPEG-2000 Code Stream Syntax");
 746   entry->module=ConstantString("JP2");
 747   entry->magick=(IsImageFormatHandler *) IsJPC;
 748   entry->adjoin=MagickFalse;
 749   entry->seekable_stream=MagickTrue;
 750   entry->thread_support=NoThreadSupport;
 751 #if defined(MAGICKCORE_JP2_DELEGATE)
 752   entry->decoder=(DecodeImageHandler *) ReadJP2Image;
 753   entry->encoder=(EncodeImageHandler *) WriteJP2Image;
 754 #endif
 755   (void) RegisterMagickInfo(entry);
 756   entry=SetMagickInfo("JPX");
 757   entry->description=ConstantString("JPEG-2000 File Format Syntax");
 758   entry->module=ConstantString("JP2");
 759   entry->magick=(IsImageFormatHandler *) IsJPC;
 760   entry->adjoin=MagickFalse;
 761   entry->seekable_stream=MagickTrue;
 762   entry->thread_support=NoThreadSupport;
 763 #if defined(MAGICKCORE_JP2_DELEGATE)
 764   entry->decoder=(DecodeImageHandler *) ReadJP2Image;
 765   entry->encoder=(EncodeImageHandler *) WriteJP2Image;
 766 #endif
 767   (void) RegisterMagickInfo(entry);
 768   entry=SetMagickInfo("PGX");
 769   entry->description=ConstantString("JPEG-2000 VM Format");
 770   entry->module=ConstantString("JP2");
 771   entry->magick=(IsImageFormatHandler *) IsJPC;
 772   entry->adjoin=MagickFalse;
 773   entry->seekable_stream=MagickTrue;
 774   entry->thread_support=NoThreadSupport;
 775 #if defined(MAGICKCORE_JP2_DELEGATE)
 776   entry->decoder=(DecodeImageHandler *) ReadJP2Image;
 777 #endif
 778   (void) RegisterMagickInfo(entry);
 779 #if defined(MAGICKCORE_JP2_DELEGATE)
 780   if (instantiate_jp2 == MagickFalse)
 781     {
 782       jas_init();
 783       instantiate_jp2=MagickTrue;
 784     }
 785 #endif
 786   return(MagickImageCoderSignature);
 787 }
 788 \f
 789 /*
 790 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 791 %                                                                             %
 792 %                                                                             %
 793 %                                                                             %
 794 %   U n r e g i s t e r J P 2 I m a g e                                       %
 795 %                                                                             %
 796 %                                                                             %
 797 %                                                                             %
 798 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 799 %
 800 %  UnregisterJP2Image() removes format registrations made by the JP2 module
 801 %  from the list of supported formats.
 802 %
 803 %  The format of the UnregisterJP2Image method is:
 804 %
 805 %      UnregisterJP2Image(void)
 806 %
 807 */
 808 ModuleExport void UnregisterJP2Image(void)
 809 {
 810   (void) UnregisterMagickInfo("PGX");
 811   (void) UnregisterMagickInfo("J2K");
 812   (void) UnregisterMagickInfo("J2C");
 813   (void) UnregisterMagickInfo("JPC");
 814   (void) UnregisterMagickInfo("JP2");
 815 #if defined(MAGICKCORE_JP2_DELEGATE)
 816   if (instantiate_jp2 != MagickFalse)
 817     {
 818       jas_cleanup();
 819       instantiate_jp2=MagickFalse;
 820     }
 821 #endif
 822 }
 823 \f
 824 #if defined(MAGICKCORE_JP2_DELEGATE)
 825 /*
 826 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 827 %                                                                             %
 828 %                                                                             %
 829 %                                                                             %
 830 %   W r i t e J P 2 I m a g e                                                 %
 831 %                                                                             %
 832 %                                                                             %
 833 %                                                                             %
 834 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 835 %
 836 %  WriteJP2Image() writes an image in the JPEG 2000 image format.
 837 %
 838 %  JP2 support originally written by Nathan Brown, nathanbrown@letu.edu
 839 %
 840 %  The format of the WriteJP2Image method is:
 841 %
 842 %      MagickBooleanType WriteJP2Image(const ImageInfo *image_info,
 843 %        Image *image,ExceptionInfo *exception)
 844 %
 845 %  A description of each parameter follows.
 846 %
 847 %    o image_info: the image info.
 848 %
 849 %    o image:  The image.
 850 %
 851 %    o exception: return any errors or warnings in this structure.
 852 %
 853 */
 854 static MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image,
 855   ExceptionInfo *exception)
 856 {
 857   char
 858     *key,
 859     magick[MaxTextExtent],
 860     *options;
 861
 862   const char
 863     *option;
 864
 865   jas_image_cmptparm_t
 866     component_info[4];
 867
 868   jas_image_t
 869     *jp2_image;
 870
 871   jas_matrix_t
 872     *pixels[4];
 873
 874   jas_stream_t
 875     *jp2_stream;
 876
 877   MagickBooleanType
 878     status;
 879
 880   QuantumAny
 881     range;
 882
 883   register const Quantum
 884     *p;
 885
 886   register ssize_t
 887     i,
 888     x;
 889
 890   size_t
 891     number_components;
 892
 893   ssize_t
 894     format,
 895     y;
 896
 897   /*
 898     Open image file.
 899   */
 900   assert(image_info != (const ImageInfo *) NULL);
 901   assert(image_info->signature == MagickSignature);
 902   assert(image != (Image *) NULL);
 903   assert(image->signature == MagickSignature);
 904   if (image->debug != MagickFalse)
 905     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 906   assert(exception != (ExceptionInfo *) NULL);
 907   assert(exception->signature == MagickSignature);
 908   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
 909   if (status == MagickFalse)
 910     return(status);
 911   /*
 912     Initialize JPEG 2000 API.
 913   */
 914   if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
 915     (void) TransformImageColorspace(image,sRGBColorspace,exception);
 916   jp2_stream=JP2StreamManager(image);
 917   if (jp2_stream == (jas_stream_t *) NULL)
 918     ThrowWriterException(DelegateError,"UnableToManageJP2Stream");
 919   number_components=image->matte ? 4UL : 3UL;
 920   if (IsGrayColorspace(image->colorspace) != MagickFalse)
 921     number_components=1;
 922   if ((image->columns != (unsigned int) image->columns) ||
 923       (image->rows != (unsigned int) image->rows))
 924     ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
 925   (void) ResetMagickMemory(&component_info,0,sizeof(component_info));
 926   for (i=0; i < (ssize_t) number_components; i++)
 927   {
 928     component_info[i].tlx=0;
 929     component_info[i].tly=0;
 930     component_info[i].hstep=1;
 931     component_info[i].vstep=1;
 932     component_info[i].width=(unsigned int) image->columns;
 933     component_info[i].height=(unsigned int) image->rows;
 934     component_info[i].prec=(int) MagickMax(MagickMin(image->depth,16),2);
 935     component_info[i].sgnd=MagickFalse;
 936   }
 937   jp2_image=jas_image_create((int) number_components,component_info,
 938     JAS_CLRSPC_UNKNOWN);
 939   if (jp2_image == (jas_image_t *) NULL)
 940     ThrowWriterException(DelegateError,"UnableToCreateImage");
 941   switch (image->colorspace)
 942   {
 943     case RGBColorspace:
 944     case sRGBColorspace:
 945     {
 946       /*
 947         RGB colorspace.
 948       */
 949       jas_image_setclrspc(jp2_image,JAS_CLRSPC_SRGB);
 950       jas_image_setcmpttype(jp2_image,0,
 951         (jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R));
 952       jas_image_setcmpttype(jp2_image,1,
 953         (jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G));
 954       jas_image_setcmpttype(jp2_image,2,
 955         (jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B));
 956       if (number_components == 4)
 957         jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY);
 958       break;
 959     }
 960     case GRAYColorspace:
 961     {
 962       /*
 963         Grayscale colorspace.
 964       */
 965       jas_image_setclrspc(jp2_image,JAS_CLRSPC_SGRAY);
 966       jas_image_setcmpttype(jp2_image,0,
 967         JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y));
 968       break;
 969     }
 970     case YCbCrColorspace:
 971     {
 972       /*
 973         YCbCr colorspace.
 974       */
 975       jas_image_setclrspc(jp2_image,JAS_CLRSPC_SYCBCR);
 976       jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t)
 977         JAS_IMAGE_CT_COLOR(0));
 978       jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t)
 979         JAS_IMAGE_CT_COLOR(1));
 980       jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t)
 981         JAS_IMAGE_CT_COLOR(2));
 982       if (number_components == 4)
 983         jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY);
 984       break;
 985     }
 986     case XYZColorspace:
 987     {
 988       /*
 989         XYZ colorspace.
 990       */
 991       jas_image_setclrspc(jp2_image,JAS_CLRSPC_CIEXYZ);
 992       jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t)
 993         JAS_IMAGE_CT_COLOR(0));
 994       jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t)
 995         JAS_IMAGE_CT_COLOR(1));
 996       jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t)
 997         JAS_IMAGE_CT_COLOR(2));
 998       if (number_components == 4)
 999         jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY);
1000       break;
1001     }
1002     case LabColorspace:
1003     {
1004       /*
1005         Lab colorspace.
1006       */
1007       jas_image_setclrspc(jp2_image,JAS_CLRSPC_CIELAB);
1008       jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t)
1009         JAS_IMAGE_CT_COLOR(0));
1010       jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t)
1011         JAS_IMAGE_CT_COLOR(1));
1012       jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t)
1013         JAS_IMAGE_CT_COLOR(2));
1014       if (number_components == 4)
1015         jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY);
1016       break;
1017     }
1018     default:
1019     {
1020       /*
1021         Unknow.
1022       */
1023       jas_image_setclrspc(jp2_image,JAS_CLRSPC_UNKNOWN);
1024       jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t)
1025         JAS_IMAGE_CT_COLOR(0));
1026       jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t)
1027         JAS_IMAGE_CT_COLOR(1));
1028       jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t)
1029         JAS_IMAGE_CT_COLOR(2));
1030       if (number_components == 4)
1031         jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY);
1032       break;
1033     }
1034   }
1035   /*
1036     Convert to JPEG 2000 pixels.
1037   */
1038   for (i=0; i < (ssize_t) number_components; i++)
1039   {
1040     pixels[i]=jas_matrix_create(1,(int) image->columns);
1041     if (pixels[i] == (jas_matrix_t *) NULL)
1042       {
1043         for (x=0; x < i; x++)
1044           jas_matrix_destroy(pixels[x]);
1045         jas_image_destroy(jp2_image);
1046         ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1047       }
1048   }
1049   range=GetQuantumRange((size_t) component_info[0].prec);
1050   for (y=0; y < (ssize_t) image->rows; y++)
1051   {
1052     p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1053     if (p == (const Quantum *) NULL)
1054       break;
1055     for (x=0; x < (ssize_t) image->columns; x++)
1056     {
1057       if (number_components == 1)
1058         jas_matrix_setv(pixels[0],x,(jas_seqent_t) ScaleQuantumToAny(
1059           GetPixelIntensity(image,p),range));
1060       else
1061         {
1062           jas_matrix_setv(pixels[0],x,(jas_seqent_t) ScaleQuantumToAny(
1063             GetPixelRed(image,p),range));
1064           jas_matrix_setv(pixels[1],x,(jas_seqent_t) ScaleQuantumToAny(
1065             GetPixelGreen(image,p),range));
1066           jas_matrix_setv(pixels[2],x,(jas_seqent_t) ScaleQuantumToAny(
1067             GetPixelBlue(image,p),range));
1068           if (number_components > 3)
1069             jas_matrix_setv(pixels[3],x,(jas_seqent_t) ScaleQuantumToAny(
1070               GetPixelAlpha(image,p),range));
1071         }
1072       p+=GetPixelChannels(image);
1073     }
1074     for (i=0; i < (ssize_t) number_components; i++)
1075       (void) jas_image_writecmpt(jp2_image,(short) i,0,(unsigned int) y,
1076         (unsigned int) image->columns,1,pixels[i]);
1077     status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1078       image->rows);
1079     if (status == MagickFalse)
1080       break;
1081   }
1082   (void) CopyMagickString(magick,image_info->magick,MaxTextExtent);
1083   if (LocaleCompare(magick,"J2C") == 0)
1084     (void) CopyMagickString(magick,"JPC",MaxTextExtent);
1085   LocaleLower(magick);
1086   format=jas_image_strtofmt(magick);
1087   options=(char *) NULL;
1088   ResetImageOptionIterator(image_info);
1089   key=GetNextImageOption(image_info);
1090   for ( ; key != (char *) NULL; key=GetNextImageOption(image_info))
1091   {
1092     option=GetImageOption(image_info,key);
1093     if (option == (const char *) NULL)
1094       continue;
1095     if (LocaleNCompare(key,"jp2:",4) == 0)
1096       {
1097         (void) ConcatenateString(&options,key+4);
1098         if (*option != '\0')
1099           {
1100             (void) ConcatenateString(&options,"=");
1101             (void) ConcatenateString(&options,option);
1102           }
1103         (void) ConcatenateString(&options," ");
1104       }
1105   }
1106   option=GetImageOption(image_info,"jp2:rate");
1107   if ((option == (const char *) NULL) &&
1108       (image_info->compression != LosslessJPEGCompression) &&
1109       (image->quality != UndefinedCompressionQuality) &&
1110       ((double) image->quality <= 99.5) &&
1111       ((image->rows*image->columns) > 2500))
1112     {
1113       char
1114         option[MaxTextExtent];
1115
1116       double
1117         alpha,
1118         header_size,
1119         number_pixels,
1120         rate,
1121         target_size;
1122
1123       alpha=115.0-image->quality;
1124       rate=100.0/(alpha*alpha);
1125       header_size=550.0;
1126       header_size+=(number_components-1)*142;
1127       number_pixels=(double) image->rows*image->columns*number_components*
1128         (GetImageQuantumDepth(image,MagickTrue)/8);
1129       target_size=(number_pixels*rate)+header_size;
1130       rate=target_size/number_pixels;
1131       (void) FormatLocaleString(option,MaxTextExtent,"rate=%g",rate);
1132       (void) ConcatenateString(&options,option);
1133     }
1134   status=jas_image_encode(jp2_image,jp2_stream,format,options) != 0 ?
1135     MagickTrue : MagickFalse;
1136   if (options != (char *) NULL)
1137     options=DestroyString(options);
1138   (void) jas_stream_close(jp2_stream);
1139   for (i=0; i < (ssize_t) number_components; i++)
1140     jas_matrix_destroy(pixels[i]);
1141   jas_image_destroy(jp2_image);
1142   if (status != MagickFalse)
1143     ThrowWriterException(DelegateError,"UnableToEncodeImageFile");
1144   return(MagickTrue);
1145 }
1146 #endif