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

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                        PPPP   IIIII   CCCC  TTTTT                           %
   7 %                        P   P    I    C        T                             %
   8 %                        PPPP     I    C        T                             %
   9 %                        P        I    C        T                             %
  10 %                        P      IIIII   CCCC    T                             %
  11 %                                                                             %
  12 %                                                                             %
  13 %               Read/Write Apple Macintosh QuickDraw/PICT Format              %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John 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/blob.h"
  44 #include "MagickCore/blob-private.h"
  45 #include "MagickCore/cache.h"
  46 #include "MagickCore/color-private.h"
  47 #include "MagickCore/colormap.h"
  48 #include "MagickCore/colormap-private.h"
  49 #include "MagickCore/colorspace.h"
  50 #include "MagickCore/colorspace-private.h"
  51 #include "MagickCore/composite.h"
  52 #include "MagickCore/constitute.h"
  53 #include "MagickCore/exception.h"
  54 #include "MagickCore/exception-private.h"
  55 #include "MagickCore/image.h"
  56 #include "MagickCore/image-private.h"
  57 #include "MagickCore/list.h"
  58 #include "MagickCore/log.h"
  59 #include "MagickCore/magick.h"
  60 #include "MagickCore/memory_.h"
  61 #include "MagickCore/monitor.h"
  62 #include "MagickCore/monitor-private.h"
  63 #include "MagickCore/pixel-accessor.h"
  64 #include "MagickCore/profile.h"
  65 #include "MagickCore/resource_.h"
  66 #include "MagickCore/quantum-private.h"
  67 #include "MagickCore/static.h"
  68 #include "MagickCore/string_.h"
  69 #include "MagickCore/module.h"
  70 #include "MagickCore/transform.h"
  71 #include "MagickCore/utility.h"
  72 \f
  73 /*
  74   ImageMagick Macintosh PICT Methods.
  75 */
  76 #define ReadPixmap(pixmap) \
  77 { \
  78   pixmap.version=(short) ReadBlobMSBShort(image); \
  79   pixmap.pack_type=(short) ReadBlobMSBShort(image); \
  80   pixmap.pack_size=ReadBlobMSBLong(image); \
  81   pixmap.horizontal_resolution=1UL*ReadBlobMSBShort(image); \
  82   (void) ReadBlobMSBShort(image); \
  83   pixmap.vertical_resolution=1UL*ReadBlobMSBShort(image); \
  84   (void) ReadBlobMSBShort(image); \
  85   pixmap.pixel_type=(short) ReadBlobMSBShort(image); \
  86   pixmap.bits_per_pixel=(short) ReadBlobMSBShort(image); \
  87   pixmap.component_count=(short) ReadBlobMSBShort(image); \
  88   pixmap.component_size=(short) ReadBlobMSBShort(image); \
  89   pixmap.plane_bytes=ReadBlobMSBLong(image); \
  90   pixmap.table=ReadBlobMSBLong(image); \
  91   pixmap.reserved=ReadBlobMSBLong(image); \
  92   if ((pixmap.bits_per_pixel <= 0) || (pixmap.bits_per_pixel > 32) || \
  93       (pixmap.component_count <= 0) || (pixmap.component_count > 4) || \
  94       (pixmap.component_size <= 0)) \
  95     ThrowReaderException(CorruptImageError,"ImproperImageHeader"); \
  96 }
  97
  98 #define ReadRectangle(image,rectangle) \
  99 { \
 100   rectangle.top=(short) ReadBlobMSBShort(image); \
 101   rectangle.left=(short) ReadBlobMSBShort(image); \
 102   rectangle.bottom=(short) ReadBlobMSBShort(image); \
 103   rectangle.right=(short) ReadBlobMSBShort(image); \
 104   if ((rectangle.left > rectangle.right) || \
 105       (rectangle.top > rectangle.bottom)) \
 106     ThrowReaderException(CorruptImageError,"ImproperImageHeader"); \
 107 }
 108
 109 typedef struct _PICTCode
 110 {
 111   const char
 112     *name;
 113
 114   ssize_t
 115     length;
 116
 117   const char
 118     *description;
 119 } PICTCode;
 120
 121 typedef struct _PICTPixmap
 122 {
 123   short
 124     version,
 125     pack_type;
 126
 127   size_t
 128     pack_size,
 129     horizontal_resolution,
 130     vertical_resolution;
 131
 132   short
 133     pixel_type,
 134     bits_per_pixel,
 135     component_count,
 136     component_size;
 137
 138   size_t
 139     plane_bytes,
 140     table,
 141     reserved;
 142 } PICTPixmap;
 143
 144 typedef struct _PICTRectangle
 145 {
 146   short
 147     top,
 148     left,
 149     bottom,
 150     right;
 151 } PICTRectangle;
 152
 153 static const PICTCode
 154   codes[] =
 155   {
 156     /* 0x00 */ { "NOP", 0, "nop" },
 157     /* 0x01 */ { "Clip", 0, "clip" },
 158     /* 0x02 */ { "BkPat", 8, "background pattern" },
 159     /* 0x03 */ { "TxFont", 2, "text font (word)" },
 160     /* 0x04 */ { "TxFace", 1, "text face (byte)" },
 161     /* 0x05 */ { "TxMode", 2, "text mode (word)" },
 162     /* 0x06 */ { "SpExtra", 4, "space extra (fixed point)" },
 163     /* 0x07 */ { "PnSize", 4, "pen size (point)" },
 164     /* 0x08 */ { "PnMode", 2, "pen mode (word)" },
 165     /* 0x09 */ { "PnPat", 8, "pen pattern" },
 166     /* 0x0a */ { "FillPat", 8, "fill pattern" },
 167     /* 0x0b */ { "OvSize", 4, "oval size (point)" },
 168     /* 0x0c */ { "Origin", 4, "dh, dv (word)" },
 169     /* 0x0d */ { "TxSize", 2, "text size (word)" },
 170     /* 0x0e */ { "FgColor", 4, "foreground color (ssize_tword)" },
 171     /* 0x0f */ { "BkColor", 4, "background color (ssize_tword)" },
 172     /* 0x10 */ { "TxRatio", 8, "numerator (point), denominator (point)" },
 173     /* 0x11 */ { "Version", 1, "version (byte)" },
 174     /* 0x12 */ { "BkPixPat", 0, "color background pattern" },
 175     /* 0x13 */ { "PnPixPat", 0, "color pen pattern" },
 176     /* 0x14 */ { "FillPixPat", 0, "color fill pattern" },
 177     /* 0x15 */ { "PnLocHFrac", 2, "fractional pen position" },
 178     /* 0x16 */ { "ChExtra", 2, "extra for each character" },
 179     /* 0x17 */ { "reserved", 0, "reserved for Apple use" },
 180     /* 0x18 */ { "reserved", 0, "reserved for Apple use" },
 181     /* 0x19 */ { "reserved", 0, "reserved for Apple use" },
 182     /* 0x1a */ { "RGBFgCol", 6, "RGB foreColor" },
 183     /* 0x1b */ { "RGBBkCol", 6, "RGB backColor" },
 184     /* 0x1c */ { "HiliteMode", 0, "hilite mode flag" },
 185     /* 0x1d */ { "HiliteColor", 6, "RGB hilite color" },
 186     /* 0x1e */ { "DefHilite", 0, "Use default hilite color" },
 187     /* 0x1f */ { "OpColor", 6, "RGB OpColor for arithmetic modes" },
 188     /* 0x20 */ { "Line", 8, "pnLoc (point), newPt (point)" },
 189     /* 0x21 */ { "LineFrom", 4, "newPt (point)" },
 190     /* 0x22 */ { "ShortLine", 6, "pnLoc (point, dh, dv (-128 .. 127))" },
 191     /* 0x23 */ { "ShortLineFrom", 2, "dh, dv (-128 .. 127)" },
 192     /* 0x24 */ { "reserved", -1, "reserved for Apple use" },
 193     /* 0x25 */ { "reserved", -1, "reserved for Apple use" },
 194     /* 0x26 */ { "reserved", -1, "reserved for Apple use" },
 195     /* 0x27 */ { "reserved", -1, "reserved for Apple use" },
 196     /* 0x28 */ { "LongText", 0, "txLoc (point), count (0..255), text" },
 197     /* 0x29 */ { "DHText", 0, "dh (0..255), count (0..255), text" },
 198     /* 0x2a */ { "DVText", 0, "dv (0..255), count (0..255), text" },
 199     /* 0x2b */ { "DHDVText", 0, "dh, dv (0..255), count (0..255), text" },
 200     /* 0x2c */ { "reserved", -1, "reserved for Apple use" },
 201     /* 0x2d */ { "reserved", -1, "reserved for Apple use" },
 202     /* 0x2e */ { "reserved", -1, "reserved for Apple use" },
 203     /* 0x2f */ { "reserved", -1, "reserved for Apple use" },
 204     /* 0x30 */ { "frameRect", 8, "rect" },
 205     /* 0x31 */ { "paintRect", 8, "rect" },
 206     /* 0x32 */ { "eraseRect", 8, "rect" },
 207     /* 0x33 */ { "invertRect", 8, "rect" },
 208     /* 0x34 */ { "fillRect", 8, "rect" },
 209     /* 0x35 */ { "reserved", 8, "reserved for Apple use" },
 210     /* 0x36 */ { "reserved", 8, "reserved for Apple use" },
 211     /* 0x37 */ { "reserved", 8, "reserved for Apple use" },
 212     /* 0x38 */ { "frameSameRect", 0, "rect" },
 213     /* 0x39 */ { "paintSameRect", 0, "rect" },
 214     /* 0x3a */ { "eraseSameRect", 0, "rect" },
 215     /* 0x3b */ { "invertSameRect", 0, "rect" },
 216     /* 0x3c */ { "fillSameRect", 0, "rect" },
 217     /* 0x3d */ { "reserved", 0, "reserved for Apple use" },
 218     /* 0x3e */ { "reserved", 0, "reserved for Apple use" },
 219     /* 0x3f */ { "reserved", 0, "reserved for Apple use" },
 220     /* 0x40 */ { "frameRRect", 8, "rect" },
 221     /* 0x41 */ { "paintRRect", 8, "rect" },
 222     /* 0x42 */ { "eraseRRect", 8, "rect" },
 223     /* 0x43 */ { "invertRRect", 8, "rect" },
 224     /* 0x44 */ { "fillRRrect", 8, "rect" },
 225     /* 0x45 */ { "reserved", 8, "reserved for Apple use" },
 226     /* 0x46 */ { "reserved", 8, "reserved for Apple use" },
 227     /* 0x47 */ { "reserved", 8, "reserved for Apple use" },
 228     /* 0x48 */ { "frameSameRRect", 0, "rect" },
 229     /* 0x49 */ { "paintSameRRect", 0, "rect" },
 230     /* 0x4a */ { "eraseSameRRect", 0, "rect" },
 231     /* 0x4b */ { "invertSameRRect", 0, "rect" },
 232     /* 0x4c */ { "fillSameRRect", 0, "rect" },
 233     /* 0x4d */ { "reserved", 0, "reserved for Apple use" },
 234     /* 0x4e */ { "reserved", 0, "reserved for Apple use" },
 235     /* 0x4f */ { "reserved", 0, "reserved for Apple use" },
 236     /* 0x50 */ { "frameOval", 8, "rect" },
 237     /* 0x51 */ { "paintOval", 8, "rect" },
 238     /* 0x52 */ { "eraseOval", 8, "rect" },
 239     /* 0x53 */ { "invertOval", 8, "rect" },
 240     /* 0x54 */ { "fillOval", 8, "rect" },
 241     /* 0x55 */ { "reserved", 8, "reserved for Apple use" },
 242     /* 0x56 */ { "reserved", 8, "reserved for Apple use" },
 243     /* 0x57 */ { "reserved", 8, "reserved for Apple use" },
 244     /* 0x58 */ { "frameSameOval", 0, "rect" },
 245     /* 0x59 */ { "paintSameOval", 0, "rect" },
 246     /* 0x5a */ { "eraseSameOval", 0, "rect" },
 247     /* 0x5b */ { "invertSameOval", 0, "rect" },
 248     /* 0x5c */ { "fillSameOval", 0, "rect" },
 249     /* 0x5d */ { "reserved", 0, "reserved for Apple use" },
 250     /* 0x5e */ { "reserved", 0, "reserved for Apple use" },
 251     /* 0x5f */ { "reserved", 0, "reserved for Apple use" },
 252     /* 0x60 */ { "frameArc", 12, "rect, startAngle, arcAngle" },
 253     /* 0x61 */ { "paintArc", 12, "rect, startAngle, arcAngle" },
 254     /* 0x62 */ { "eraseArc", 12, "rect, startAngle, arcAngle" },
 255     /* 0x63 */ { "invertArc", 12, "rect, startAngle, arcAngle" },
 256     /* 0x64 */ { "fillArc", 12, "rect, startAngle, arcAngle" },
 257     /* 0x65 */ { "reserved", 12, "reserved for Apple use" },
 258     /* 0x66 */ { "reserved", 12, "reserved for Apple use" },
 259     /* 0x67 */ { "reserved", 12, "reserved for Apple use" },
 260     /* 0x68 */ { "frameSameArc", 4, "rect, startAngle, arcAngle" },
 261     /* 0x69 */ { "paintSameArc", 4, "rect, startAngle, arcAngle" },
 262     /* 0x6a */ { "eraseSameArc", 4, "rect, startAngle, arcAngle" },
 263     /* 0x6b */ { "invertSameArc", 4, "rect, startAngle, arcAngle" },
 264     /* 0x6c */ { "fillSameArc", 4, "rect, startAngle, arcAngle" },
 265     /* 0x6d */ { "reserved", 4, "reserved for Apple use" },
 266     /* 0x6e */ { "reserved", 4, "reserved for Apple use" },
 267     /* 0x6f */ { "reserved", 4, "reserved for Apple use" },
 268     /* 0x70 */ { "framePoly", 0, "poly" },
 269     /* 0x71 */ { "paintPoly", 0, "poly" },
 270     /* 0x72 */ { "erasePoly", 0, "poly" },
 271     /* 0x73 */ { "invertPoly", 0, "poly" },
 272     /* 0x74 */ { "fillPoly", 0, "poly" },
 273     /* 0x75 */ { "reserved", 0, "reserved for Apple use" },
 274     /* 0x76 */ { "reserved", 0, "reserved for Apple use" },
 275     /* 0x77 */ { "reserved", 0, "reserved for Apple use" },
 276     /* 0x78 */ { "frameSamePoly", 0, "poly (NYI)" },
 277     /* 0x79 */ { "paintSamePoly", 0, "poly (NYI)" },
 278     /* 0x7a */ { "eraseSamePoly", 0, "poly (NYI)" },
 279     /* 0x7b */ { "invertSamePoly", 0, "poly (NYI)" },
 280     /* 0x7c */ { "fillSamePoly", 0, "poly (NYI)" },
 281     /* 0x7d */ { "reserved", 0, "reserved for Apple use" },
 282     /* 0x7e */ { "reserved", 0, "reserved for Apple use" },
 283     /* 0x7f */ { "reserved", 0, "reserved for Apple use" },
 284     /* 0x80 */ { "frameRgn", 0, "region" },
 285     /* 0x81 */ { "paintRgn", 0, "region" },
 286     /* 0x82 */ { "eraseRgn", 0, "region" },
 287     /* 0x83 */ { "invertRgn", 0, "region" },
 288     /* 0x84 */ { "fillRgn", 0, "region" },
 289     /* 0x85 */ { "reserved", 0, "reserved for Apple use" },
 290     /* 0x86 */ { "reserved", 0, "reserved for Apple use" },
 291     /* 0x87 */ { "reserved", 0, "reserved for Apple use" },
 292     /* 0x88 */ { "frameSameRgn", 0, "region (NYI)" },
 293     /* 0x89 */ { "paintSameRgn", 0, "region (NYI)" },
 294     /* 0x8a */ { "eraseSameRgn", 0, "region (NYI)" },
 295     /* 0x8b */ { "invertSameRgn", 0, "region (NYI)" },
 296     /* 0x8c */ { "fillSameRgn", 0, "region (NYI)" },
 297     /* 0x8d */ { "reserved", 0, "reserved for Apple use" },
 298     /* 0x8e */ { "reserved", 0, "reserved for Apple use" },
 299     /* 0x8f */ { "reserved", 0, "reserved for Apple use" },
 300     /* 0x90 */ { "BitsRect", 0, "copybits, rect clipped" },
 301     /* 0x91 */ { "BitsRgn", 0, "copybits, rgn clipped" },
 302     /* 0x92 */ { "reserved", -1, "reserved for Apple use" },
 303     /* 0x93 */ { "reserved", -1, "reserved for Apple use" },
 304     /* 0x94 */ { "reserved", -1, "reserved for Apple use" },
 305     /* 0x95 */ { "reserved", -1, "reserved for Apple use" },
 306     /* 0x96 */ { "reserved", -1, "reserved for Apple use" },
 307     /* 0x97 */ { "reserved", -1, "reserved for Apple use" },
 308     /* 0x98 */ { "PackBitsRect", 0, "packed copybits, rect clipped" },
 309     /* 0x99 */ { "PackBitsRgn", 0, "packed copybits, rgn clipped" },
 310     /* 0x9a */ { "DirectBitsRect", 0, "PixMap, srcRect, dstRect, mode, PixData" },
 311     /* 0x9b */ { "DirectBitsRgn", 0, "PixMap, srcRect, dstRect, mode, maskRgn, PixData" },
 312     /* 0x9c */ { "reserved", -1, "reserved for Apple use" },
 313     /* 0x9d */ { "reserved", -1, "reserved for Apple use" },
 314     /* 0x9e */ { "reserved", -1, "reserved for Apple use" },
 315     /* 0x9f */ { "reserved", -1, "reserved for Apple use" },
 316     /* 0xa0 */ { "ShortComment", 2, "kind (word)" },
 317     /* 0xa1 */ { "LongComment", 0, "kind (word), size (word), data" }
 318   };
 319
 320 /*
 321   Forward declarations.
 322 */
 323 static MagickBooleanType
 324   WritePICTImage(const ImageInfo *,Image *,ExceptionInfo *);
 325 \f
 326 /*
 327 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 328 %                                                                             %
 329 %                                                                             %
 330 %                                                                             %
 331 %   D e c o d e I m a g e                                                     %
 332 %                                                                             %
 333 %                                                                             %
 334 %                                                                             %
 335 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 336 %
 337 %  DecodeImage decompresses an image via Macintosh pack bits decoding for
 338 %  Macintosh PICT images.
 339 %
 340 %  The format of the DecodeImage method is:
 341 %
 342 %      unsigned char *DecodeImage(Image *blob,Image *image,
 343 %        size_t bytes_per_line,const int bits_per_pixel,
 344 %        unsigned size_t extent)
 345 %
 346 %  A description of each parameter follows:
 347 %
 348 %    o image_info: the image info.
 349 %
 350 %    o blob,image: the address of a structure of type Image.
 351 %
 352 %    o bytes_per_line: This integer identifies the number of bytes in a
 353 %      scanline.
 354 %
 355 %    o bits_per_pixel: the number of bits in a pixel.
 356 %
 357 %    o extent: the number of pixels allocated.
 358 %
 359 */
 360
 361 static unsigned char *ExpandBuffer(unsigned char *pixels,
 362   MagickSizeType *bytes_per_line,const unsigned int bits_per_pixel)
 363 {
 364   register ssize_t
 365     i;
 366
 367   register unsigned char
 368     *p,
 369     *q;
 370
 371   static unsigned char
 372     scanline[8*256];
 373
 374   p=pixels;
 375   q=scanline;
 376   switch (bits_per_pixel)
 377   {
 378     case 8:
 379     case 16:
 380     case 32:
 381       return(pixels);
 382     case 4:
 383     {
 384       for (i=0; i < (ssize_t) *bytes_per_line; i++)
 385       {
 386         *q++=(*p >> 4) & 0xff;
 387         *q++=(*p & 15);
 388         p++;
 389       }
 390       *bytes_per_line*=2;
 391       break;
 392     }
 393     case 2:
 394     {
 395       for (i=0; i < (ssize_t) *bytes_per_line; i++)
 396       {
 397         *q++=(*p >> 6) & 0x03;
 398         *q++=(*p >> 4) & 0x03;
 399         *q++=(*p >> 2) & 0x03;
 400         *q++=(*p & 3);
 401         p++;
 402       }
 403       *bytes_per_line*=4;
 404       break;
 405     }
 406     case 1:
 407     {
 408       for (i=0; i < (ssize_t) *bytes_per_line; i++)
 409       {
 410         *q++=(*p >> 7) & 0x01;
 411         *q++=(*p >> 6) & 0x01;
 412         *q++=(*p >> 5) & 0x01;
 413         *q++=(*p >> 4) & 0x01;
 414         *q++=(*p >> 3) & 0x01;
 415         *q++=(*p >> 2) & 0x01;
 416         *q++=(*p >> 1) & 0x01;
 417         *q++=(*p & 0x01);
 418         p++;
 419       }
 420       *bytes_per_line*=8;
 421       break;
 422     }
 423     default:
 424       break;
 425   }
 426   return(scanline);
 427 }
 428
 429 static unsigned char *DecodeImage(Image *blob,Image *image,
 430   size_t bytes_per_line,const unsigned int bits_per_pixel,size_t *extent,
 431   ExceptionInfo *exception)
 432 {
 433   MagickSizeType
 434     number_pixels;
 435
 436   register ssize_t
 437     i;
 438
 439   register unsigned char
 440     *p,
 441     *q;
 442
 443   size_t
 444     bytes_per_pixel,
 445     length,
 446     row_bytes,
 447     scanline_length,
 448     width;
 449
 450   ssize_t
 451     count,
 452     j,
 453     y;
 454
 455   unsigned char
 456     *pixels,
 457     *scanline;
 458
 459   /*
 460     Determine pixel buffer size.
 461   */
 462   if (bits_per_pixel <= 8)
 463     bytes_per_line&=0x7fff;
 464   width=image->columns;
 465   bytes_per_pixel=1;
 466   if (bits_per_pixel == 16)
 467     {
 468       bytes_per_pixel=2;
 469       width*=2;
 470     }
 471   else
 472     if (bits_per_pixel == 32)
 473       width*=image->alpha_trait ? 4 : 3;
 474   if (bytes_per_line == 0)
 475     bytes_per_line=width;
 476   row_bytes=(size_t) (image->columns | 0x8000);
 477   if (image->storage_class == DirectClass)
 478     row_bytes=(size_t) ((4*image->columns) | 0x8000);
 479   /*
 480     Allocate pixel and scanline buffer.
 481   */
 482   pixels=(unsigned char *) AcquireQuantumMemory(image->rows,row_bytes*
 483     sizeof(*pixels));
 484   if (pixels == (unsigned char *) NULL)
 485     return((unsigned char *) NULL);
 486   *extent=row_bytes*image->rows*sizeof(*pixels);
 487   (void) ResetMagickMemory(pixels,0,*extent);
 488   scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
 489   if (scanline == (unsigned char *) NULL)
 490     return((unsigned char *) NULL);
 491   if (bytes_per_line < 8)
 492     {
 493       /*
 494         Pixels are already uncompressed.
 495       */
 496       for (y=0; y < (ssize_t) image->rows; y++)
 497       {
 498         q=pixels+y*width*GetPixelChannels(image);;
 499         number_pixels=bytes_per_line;
 500         count=ReadBlob(blob,(size_t) number_pixels,scanline);
 501         (void) count;
 502         p=ExpandBuffer(scanline,&number_pixels,bits_per_pixel);
 503         if ((q+number_pixels) > (pixels+(*extent)))
 504           {
 505             (void) ThrowMagickException(exception,GetMagickModule(),
 506               CorruptImageError,"UnableToUncompressImage","`%s'",
 507               image->filename);
 508             break;
 509           }
 510         (void) CopyMagickMemory(q,p,(size_t) number_pixels);
 511       }
 512       scanline=(unsigned char *) RelinquishMagickMemory(scanline);
 513       return(pixels);
 514     }
 515   /*
 516     Uncompress RLE pixels into uncompressed pixel buffer.
 517   */
 518   for (y=0; y < (ssize_t) image->rows; y++)
 519   {
 520     q=pixels+y*width;
 521     if (bytes_per_line > 200)
 522       scanline_length=ReadBlobMSBShort(blob);
 523     else
 524       scanline_length=1UL*ReadBlobByte(blob);
 525     if (scanline_length >= row_bytes)
 526       {
 527         (void) ThrowMagickException(exception,GetMagickModule(),
 528           CorruptImageError,"UnableToUncompressImage","`%s'",image->filename);
 529         break;
 530       }
 531     count=ReadBlob(blob,scanline_length,scanline);
 532     for (j=0; j < (ssize_t) scanline_length; )
 533       if ((scanline[j] & 0x80) == 0)
 534         {
 535           length=(size_t) ((scanline[j] & 0xff)+1);
 536           number_pixels=length*bytes_per_pixel;
 537           p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
 538           if ((q-pixels+number_pixels) <= *extent)
 539             (void) CopyMagickMemory(q,p,(size_t) number_pixels);
 540           q+=number_pixels;
 541           j+=(ssize_t) (length*bytes_per_pixel+1);
 542         }
 543       else
 544         {
 545           length=(size_t) (((scanline[j] ^ 0xff) & 0xff)+2);
 546           number_pixels=bytes_per_pixel;
 547           p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
 548           for (i=0; i < (ssize_t) length; i++)
 549           {
 550             if ((q-pixels+number_pixels) <= *extent)
 551               (void) CopyMagickMemory(q,p,(size_t) number_pixels);
 552             q+=number_pixels;
 553           }
 554           j+=(ssize_t) bytes_per_pixel+1;
 555         }
 556   }
 557   scanline=(unsigned char *) RelinquishMagickMemory(scanline);
 558   return(pixels);
 559 }
 560 \f
 561 /*
 562 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 563 %                                                                             %
 564 %                                                                             %
 565 %                                                                             %
 566 %   E n c o d e I m a g e                                                     %
 567 %                                                                             %
 568 %                                                                             %
 569 %                                                                             %
 570 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 571 %
 572 %  EncodeImage compresses an image via Macintosh pack bits encoding
 573 %  for Macintosh PICT images.
 574 %
 575 %  The format of the EncodeImage method is:
 576 %
 577 %      size_t EncodeImage(Image *image,const unsigned char *scanline,
 578 %        const size_t bytes_per_line,unsigned char *pixels)
 579 %
 580 %  A description of each parameter follows:
 581 %
 582 %    o image: the address of a structure of type Image.
 583 %
 584 %    o scanline: A pointer to an array of characters to pack.
 585 %
 586 %    o bytes_per_line: the number of bytes in a scanline.
 587 %
 588 %    o pixels: A pointer to an array of characters where the packed
 589 %      characters are stored.
 590 %
 591 */
 592 static size_t EncodeImage(Image *image,const unsigned char *scanline,
 593   const size_t bytes_per_line,unsigned char *pixels)
 594 {
 595 #define MaxCount  128
 596 #define MaxPackbitsRunlength  128
 597
 598   register const unsigned char
 599     *p;
 600
 601   register ssize_t
 602     i;
 603
 604   register unsigned char
 605     *q;
 606
 607   size_t
 608     length;
 609
 610   ssize_t
 611     count,
 612     repeat_count,
 613     runlength;
 614
 615   unsigned char
 616     index;
 617
 618   /*
 619     Pack scanline.
 620   */
 621   assert(image != (Image *) NULL);
 622   assert(image->signature == MagickSignature);
 623   if (image->debug != MagickFalse)
 624     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 625   assert(scanline != (unsigned char *) NULL);
 626   assert(pixels != (unsigned char *) NULL);
 627   count=0;
 628   runlength=0;
 629   p=scanline+(bytes_per_line-1);
 630   q=pixels;
 631   index=(*p);
 632   for (i=(ssize_t) bytes_per_line-1; i >= 0; i--)
 633   {
 634     if (index == *p)
 635       runlength++;
 636     else
 637       {
 638         if (runlength < 3)
 639           while (runlength > 0)
 640           {
 641             *q++=(unsigned char) index;
 642             runlength--;
 643             count++;
 644             if (count == MaxCount)
 645               {
 646                 *q++=(unsigned char) (MaxCount-1);
 647                 count-=MaxCount;
 648               }
 649           }
 650         else
 651           {
 652             if (count > 0)
 653               *q++=(unsigned char) (count-1);
 654             count=0;
 655             while (runlength > 0)
 656             {
 657               repeat_count=runlength;
 658               if (repeat_count > MaxPackbitsRunlength)
 659                 repeat_count=MaxPackbitsRunlength;
 660               *q++=(unsigned char) index;
 661               *q++=(unsigned char) (257-repeat_count);
 662               runlength-=repeat_count;
 663             }
 664           }
 665         runlength=1;
 666       }
 667     index=(*p);
 668     p--;
 669   }
 670   if (runlength < 3)
 671     while (runlength > 0)
 672     {
 673       *q++=(unsigned char) index;
 674       runlength--;
 675       count++;
 676       if (count == MaxCount)
 677         {
 678           *q++=(unsigned char) (MaxCount-1);
 679           count-=MaxCount;
 680         }
 681     }
 682   else
 683     {
 684       if (count > 0)
 685         *q++=(unsigned char) (count-1);
 686       count=0;
 687       while (runlength > 0)
 688       {
 689         repeat_count=runlength;
 690         if (repeat_count > MaxPackbitsRunlength)
 691           repeat_count=MaxPackbitsRunlength;
 692         *q++=(unsigned char) index;
 693         *q++=(unsigned char) (257-repeat_count);
 694         runlength-=repeat_count;
 695       }
 696     }
 697   if (count > 0)
 698     *q++=(unsigned char) (count-1);
 699   /*
 700     Write the number of and the packed length.
 701   */
 702   length=(size_t) (q-pixels);
 703   if (bytes_per_line > 200)
 704     {
 705       (void) WriteBlobMSBShort(image,(unsigned short) length);
 706       length+=2;
 707     }
 708   else
 709     {
 710       (void) WriteBlobByte(image,(unsigned char) length);
 711       length++;
 712     }
 713   while (q != pixels)
 714   {
 715     q--;
 716     (void) WriteBlobByte(image,*q);
 717   }
 718   return(length);
 719 }
 720 \f
 721 /*
 722 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 723 %                                                                             %
 724 %                                                                             %
 725 %                                                                             %
 726 %   I s P I C T                                                               %
 727 %                                                                             %
 728 %                                                                             %
 729 %                                                                             %
 730 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 731 %
 732 %  IsPICT()() returns MagickTrue if the image format type, identified by the
 733 %  magick string, is PICT.
 734 %
 735 %  The format of the ReadPICTImage method is:
 736 %
 737 %      MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
 738 %
 739 %  A description of each parameter follows:
 740 %
 741 %    o magick: compare image format pattern against these bytes.
 742 %
 743 %    o length: Specifies the length of the magick string.
 744 %
 745 */
 746 static MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
 747 {
 748   if (length < 12)
 749     return(MagickFalse);
 750   /*
 751     Embedded OLE2 macintosh have "PICT" instead of 512 platform header.
 752   */
 753   if (memcmp(magick,"PICT",4) == 0)
 754     return(MagickTrue);
 755   if (length < 528)
 756     return(MagickFalse);
 757   if (memcmp(magick+522,"\000\021\002\377\014\000",6) == 0)
 758     return(MagickTrue);
 759   return(MagickFalse);
 760 }
 761 \f
 762 #if !defined(macintosh)
 763 /*
 764 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 765 %                                                                             %
 766 %                                                                             %
 767 %                                                                             %
 768 %   R e a d P I C T I m a g e                                                 %
 769 %                                                                             %
 770 %                                                                             %
 771 %                                                                             %
 772 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 773 %
 774 %  ReadPICTImage() reads an Apple Macintosh QuickDraw/PICT image file
 775 %  and returns it.  It allocates the memory necessary for the new Image
 776 %  structure and returns a pointer to the new image.
 777 %
 778 %  The format of the ReadPICTImage method is:
 779 %
 780 %      Image *ReadPICTImage(const ImageInfo *image_info,
 781 %        ExceptionInfo *exception)
 782 %
 783 %  A description of each parameter follows:
 784 %
 785 %    o image_info: the image info.
 786 %
 787 %    o exception: return any errors or warnings in this structure.
 788 %
 789 */
 790
 791 static inline size_t MagickMax(const size_t x,
 792   const size_t y)
 793 {
 794   if (x > y)
 795     return(x);
 796   return(y);
 797 }
 798
 799 static Image *ReadPICTImage(const ImageInfo *image_info,
 800   ExceptionInfo *exception)
 801 {
 802   char
 803     geometry[MaxTextExtent],
 804     header_ole[4];
 805
 806   Image
 807     *image;
 808
 809   int
 810     c,
 811     code;
 812
 813   MagickBooleanType
 814     jpeg,
 815     status;
 816
 817   PICTRectangle
 818     frame;
 819
 820   PICTPixmap
 821     pixmap;
 822
 823   Quantum
 824     index;
 825
 826   register Quantum
 827     *q;
 828
 829   register ssize_t
 830     i,
 831     x;
 832
 833   size_t
 834     extent,
 835     length;
 836
 837   ssize_t
 838     count,
 839     flags,
 840     j,
 841     version,
 842     y;
 843
 844   StringInfo
 845     *profile;
 846
 847   /*
 848     Open image file.
 849   */
 850   assert(image_info != (const ImageInfo *) NULL);
 851   assert(image_info->signature == MagickSignature);
 852   if (image_info->debug != MagickFalse)
 853     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 854       image_info->filename);
 855   assert(exception != (ExceptionInfo *) NULL);
 856   assert(exception->signature == MagickSignature);
 857   image=AcquireImage(image_info,exception);
 858   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 859   if (status == MagickFalse)
 860     {
 861       image=DestroyImageList(image);
 862       return((Image *) NULL);
 863     }
 864   /*
 865     Read PICT header.
 866   */
 867   pixmap.bits_per_pixel=0;
 868   pixmap.component_count=0;
 869   /*
 870     Skip header : 512 for standard PICT and 4, ie "PICT" for OLE2.
 871   */
 872   header_ole[0]=ReadBlobByte(image);
 873   header_ole[1]=ReadBlobByte(image);
 874   header_ole[2]=ReadBlobByte(image);
 875   header_ole[3]=ReadBlobByte(image);
 876   if (!((header_ole[0] == 0x50) && (header_ole[1] == 0x49) &&
 877       (header_ole[2] == 0x43) && (header_ole[3] == 0x54 )))
 878     for (i=0; i < 508; i++)
 879       (void) ReadBlobByte(image);
 880   (void) ReadBlobMSBShort(image);  /* skip picture size */
 881   ReadRectangle(image,frame);
 882   while ((c=ReadBlobByte(image)) == 0) ;
 883   if (c != 0x11)
 884     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 885   version=ReadBlobByte(image);
 886   if (version == 2)
 887     {
 888       c=ReadBlobByte(image);
 889       if (c != 0xff)
 890         ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 891     }
 892   else
 893     if (version != 1)
 894       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 895   if ((frame.left < 0) || (frame.right < 0) || (frame.top < 0) ||
 896       (frame.bottom < 0) || (frame.left >= frame.right) ||
 897       (frame.top >= frame.bottom))
 898     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 899   /*
 900     Create black canvas.
 901   */
 902   flags=0;
 903   image->depth=8;
 904   image->columns=1UL*(frame.right-frame.left);
 905   image->rows=1UL*(frame.bottom-frame.top);
 906   image->resolution.x=DefaultResolution;
 907   image->resolution.y=DefaultResolution;
 908   image->units=UndefinedResolution;
 909   /*
 910     Interpret PICT opcodes.
 911   */
 912   jpeg=MagickFalse;
 913   for (code=0; EOFBlob(image) == MagickFalse; )
 914   {
 915     if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
 916       if (image->scene >= (image_info->scene+image_info->number_scenes-1))
 917         break;
 918     if ((version == 1) || ((TellBlob(image) % 2) != 0))
 919       code=ReadBlobByte(image);
 920     if (version == 2)
 921       code=(int) ReadBlobMSBShort(image);
 922     if (code > 0xa1)
 923       {
 924         if (image->debug != MagickFalse)
 925           (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%04X:",code);
 926       }
 927     else
 928       {
 929         if (image->debug != MagickFalse)
 930           (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 931             "  %04X %s: %s",code,codes[code].name,codes[code].description);
 932         switch (code)
 933         {
 934           case 0x01:
 935           {
 936             /*
 937               Clipping rectangle.
 938             */
 939             length=ReadBlobMSBShort(image);
 940             if (length != 0x000a)
 941               {
 942                 for (i=0; i < (ssize_t) (length-2); i++)
 943                   (void) ReadBlobByte(image);
 944                 break;
 945               }
 946             ReadRectangle(image,frame);
 947             if (((frame.left & 0x8000) != 0) || ((frame.top & 0x8000) != 0))
 948               break;
 949             image->columns=1UL*(frame.right-frame.left);
 950             image->rows=1UL*(frame.bottom-frame.top);
 951             (void) SetImageBackgroundColor(image,exception);
 952             break;
 953           }
 954           case 0x12:
 955           case 0x13:
 956           case 0x14:
 957           {
 958             ssize_t
 959               pattern;
 960
 961             size_t
 962               height,
 963               width;
 964
 965             /*
 966               Skip pattern definition.
 967             */
 968             pattern=1L*ReadBlobMSBShort(image);
 969             for (i=0; i < 8; i++)
 970               (void) ReadBlobByte(image);
 971             if (pattern == 2)
 972               {
 973                 for (i=0; i < 5; i++)
 974                   (void) ReadBlobByte(image);
 975                 break;
 976               }
 977             if (pattern != 1)
 978               ThrowReaderException(CorruptImageError,"UnknownPatternType");
 979             length=ReadBlobMSBShort(image);
 980             ReadRectangle(image,frame);
 981             ReadPixmap(pixmap);
 982             image->depth=1UL*pixmap.component_size;
 983             image->resolution.x=1.0*pixmap.horizontal_resolution;
 984             image->resolution.y=1.0*pixmap.vertical_resolution;
 985             image->units=PixelsPerInchResolution;
 986             (void) ReadBlobMSBLong(image);
 987             flags=1L*ReadBlobMSBShort(image);
 988             length=ReadBlobMSBShort(image);
 989             for (i=0; i <= (ssize_t) length; i++)
 990               (void) ReadBlobMSBLong(image);
 991             width=1UL*(frame.bottom-frame.top);
 992             height=1UL*(frame.right-frame.left);
 993             if (pixmap.bits_per_pixel <= 8)
 994               length&=0x7fff;
 995             if (pixmap.bits_per_pixel == 16)
 996               width<<=1;
 997             if (length == 0)
 998               length=width;
 999             if (length < 8)
1000               {
1001                 for (i=0; i < (ssize_t) (length*height); i++)
1002                   (void) ReadBlobByte(image);
1003               }
1004             else
1005               for (j=0; j < (int) height; j++)
1006                 if (length > 200)
1007                   for (j=0; j < (ssize_t) ReadBlobMSBShort(image); j++)
1008                     (void) ReadBlobByte(image);
1009                 else
1010                   for (j=0; j < (ssize_t) ReadBlobByte(image); j++)
1011                     (void) ReadBlobByte(image);
1012             break;
1013           }
1014           case 0x1b:
1015           {
1016             /*
1017               Initialize image background color.
1018             */
1019             image->background_color.red=(Quantum)
1020               ScaleShortToQuantum(ReadBlobMSBShort(image));
1021             image->background_color.green=(Quantum)
1022               ScaleShortToQuantum(ReadBlobMSBShort(image));
1023             image->background_color.blue=(Quantum)
1024               ScaleShortToQuantum(ReadBlobMSBShort(image));
1025             break;
1026           }
1027           case 0x70:
1028           case 0x71:
1029           case 0x72:
1030           case 0x73:
1031           case 0x74:
1032           case 0x75:
1033           case 0x76:
1034           case 0x77:
1035           {
1036             /*
1037               Skip polygon or region.
1038             */
1039             length=ReadBlobMSBShort(image);
1040             for (i=0; i < (ssize_t) (length-2); i++)
1041               (void) ReadBlobByte(image);
1042             break;
1043           }
1044           case 0x90:
1045           case 0x91:
1046           case 0x98:
1047           case 0x99:
1048           case 0x9a:
1049           case 0x9b:
1050           {
1051             Image
1052               *tile_image;
1053
1054             PICTRectangle
1055               source,
1056               destination;
1057
1058             register unsigned char
1059               *p;
1060
1061             size_t
1062               j;
1063
1064             ssize_t
1065               bytes_per_line;
1066
1067             unsigned char
1068               *pixels;
1069
1070             /*
1071               Pixmap clipped by a rectangle.
1072             */
1073             bytes_per_line=0;
1074             if ((code != 0x9a) && (code != 0x9b))
1075               bytes_per_line=1L*ReadBlobMSBShort(image);
1076             else
1077               {
1078                 (void) ReadBlobMSBShort(image);
1079                 (void) ReadBlobMSBShort(image);
1080                 (void) ReadBlobMSBShort(image);
1081               }
1082             ReadRectangle(image,frame);
1083             /*
1084               Initialize tile image.
1085             */
1086             tile_image=CloneImage(image,1UL*(frame.right-frame.left),
1087               1UL*(frame.bottom-frame.top),MagickTrue,exception);
1088             if (tile_image == (Image *) NULL)
1089               return((Image *) NULL);
1090             if ((code == 0x9a) || (code == 0x9b) ||
1091                 ((bytes_per_line & 0x8000) != 0))
1092               {
1093                 ReadPixmap(pixmap);
1094                 tile_image->depth=1UL*pixmap.component_size;
1095                 tile_image->alpha_trait=pixmap.component_count == 4 ?
1096                   BlendPixelTrait : UndefinedPixelTrait;
1097                 tile_image->resolution.x=(double) pixmap.horizontal_resolution;
1098                 tile_image->resolution.y=(double) pixmap.vertical_resolution;
1099                 tile_image->units=PixelsPerInchResolution;
1100                 if (tile_image->alpha_trait == BlendPixelTrait)
1101                   image->alpha_trait=tile_image->alpha_trait;
1102               }
1103             if ((code != 0x9a) && (code != 0x9b))
1104               {
1105                 /*
1106                   Initialize colormap.
1107                 */
1108                 tile_image->colors=2;
1109                 if ((bytes_per_line & 0x8000) != 0)
1110                   {
1111                     (void) ReadBlobMSBLong(image);
1112                     flags=1L*ReadBlobMSBShort(image);
1113                     tile_image->colors=1UL*ReadBlobMSBShort(image)+1;
1114                   }
1115                 status=AcquireImageColormap(tile_image,tile_image->colors,
1116                   exception);
1117                 if (status == MagickFalse)
1118                   {
1119                     tile_image=DestroyImage(tile_image);
1120                     ThrowReaderException(ResourceLimitError,
1121                       "MemoryAllocationFailed");
1122                   }
1123                 if ((bytes_per_line & 0x8000) != 0)
1124                   {
1125                     for (i=0; i < (ssize_t) tile_image->colors; i++)
1126                     {
1127                       j=ReadBlobMSBShort(image) % tile_image->colors;
1128                       if ((flags & 0x8000) != 0)
1129                         j=(size_t) i;
1130                       tile_image->colormap[j].red=(Quantum)
1131                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1132                       tile_image->colormap[j].green=(Quantum)
1133                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1134                       tile_image->colormap[j].blue=(Quantum)
1135                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1136                     }
1137                   }
1138                 else
1139                   {
1140                     for (i=0; i < (ssize_t) tile_image->colors; i++)
1141                     {
1142                       tile_image->colormap[i].red=(Quantum) (QuantumRange-
1143                         tile_image->colormap[i].red);
1144                       tile_image->colormap[i].green=(Quantum) (QuantumRange-
1145                         tile_image->colormap[i].green);
1146                       tile_image->colormap[i].blue=(Quantum) (QuantumRange-
1147                         tile_image->colormap[i].blue);
1148                     }
1149                   }
1150               }
1151             ReadRectangle(image,source);
1152             ReadRectangle(image,destination);
1153             (void) ReadBlobMSBShort(image);
1154             if ((code == 0x91) || (code == 0x99) || (code == 0x9b))
1155               {
1156                 /*
1157                   Skip region.
1158                 */
1159                 length=ReadBlobMSBShort(image);
1160                 for (i=0; i < (ssize_t) (length-2); i++)
1161                   (void) ReadBlobByte(image);
1162               }
1163             if ((code != 0x9a) && (code != 0x9b) &&
1164                 (bytes_per_line & 0x8000) == 0)
1165               pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1,&extent,
1166                 exception);
1167             else
1168               pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1U*
1169                 pixmap.bits_per_pixel,&extent,exception);
1170             if (pixels == (unsigned char *) NULL)
1171               {
1172                 tile_image=DestroyImage(tile_image);
1173                 ThrowReaderException(ResourceLimitError,
1174                   "MemoryAllocationFailed");
1175               }
1176             /*
1177               Convert PICT tile image to pixel packets.
1178             */
1179             p=pixels;
1180             for (y=0; y < (ssize_t) tile_image->rows; y++)
1181             {
1182               if (p > (pixels+extent+image->columns))
1183                 ThrowReaderException(CorruptImageError,"NotEnoughPixelData");
1184               q=QueueAuthenticPixels(tile_image,0,y,tile_image->columns,1,
1185                 exception);
1186               if (q == (Quantum *) NULL)
1187                 break;
1188               for (x=0; x < (ssize_t) tile_image->columns; x++)
1189               {
1190                 if (tile_image->storage_class == PseudoClass)
1191                   {
1192                     index=ConstrainColormapIndex(tile_image,*p,exception);
1193                     SetPixelIndex(tile_image,index,q);
1194                     SetPixelRed(tile_image,
1195                       tile_image->colormap[(ssize_t) index].red,q);
1196                     SetPixelGreen(tile_image,
1197                       tile_image->colormap[(ssize_t) index].green,q);
1198                     SetPixelBlue(tile_image,
1199                       tile_image->colormap[(ssize_t) index].blue,q);
1200                   }
1201                 else
1202                   {
1203                     if (pixmap.bits_per_pixel == 16)
1204                       {
1205                         i=(*p++);
1206                         j=(*p);
1207                         SetPixelRed(tile_image,ScaleCharToQuantum(
1208                           (unsigned char) ((i & 0x7c) << 1)),q);
1209                         SetPixelGreen(tile_image,ScaleCharToQuantum(
1210                           (unsigned char) (((i & 0x03) << 6) |
1211                           ((j & 0xe0) >> 2))),q);
1212                         SetPixelBlue(tile_image,ScaleCharToQuantum(
1213                           (unsigned char) ((j & 0x1f) << 3)),q);
1214                       }
1215                     else
1216                       if (tile_image->alpha_trait != BlendPixelTrait)
1217                         {
1218                           if (p > (pixels+extent+2*image->columns))
1219                             ThrowReaderException(CorruptImageError,
1220                               "NotEnoughPixelData");
1221                           SetPixelRed(tile_image,ScaleCharToQuantum(*p),q);
1222                           SetPixelGreen(tile_image,ScaleCharToQuantum(
1223                             *(p+tile_image->columns)),q);
1224                           SetPixelBlue(tile_image,ScaleCharToQuantum(
1225                             *(p+2*tile_image->columns)),q);
1226                         }
1227                       else
1228                         {
1229                           if (p > (pixels+extent+3*image->columns))
1230                             ThrowReaderException(CorruptImageError,
1231                               "NotEnoughPixelData");
1232                           SetPixelAlpha(tile_image,ScaleCharToQuantum(*p),q);
1233                           SetPixelRed(tile_image,ScaleCharToQuantum(
1234                             *(p+tile_image->columns)),q);
1235                           SetPixelGreen(tile_image,ScaleCharToQuantum(
1236                             *(p+2*tile_image->columns)),q);
1237                           SetPixelBlue(tile_image,ScaleCharToQuantum(
1238                             *(p+3*tile_image->columns)),q);
1239                         }
1240                   }
1241                 p++;
1242                 q+=GetPixelChannels(tile_image);
1243               }
1244               if (SyncAuthenticPixels(tile_image,exception) == MagickFalse)
1245                 break;
1246               if ((tile_image->storage_class == DirectClass) &&
1247                   (pixmap.bits_per_pixel != 16))
1248                 {
1249                   p+=(pixmap.component_count-1)*tile_image->columns;
1250                   if (p < pixels)
1251                     break;
1252                 }
1253               status=SetImageProgress(image,LoadImageTag,y,tile_image->rows);
1254               if (status == MagickFalse)
1255                 break;
1256             }
1257             pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1258             if (jpeg == MagickFalse)
1259               if ((code == 0x9a) || (code == 0x9b) ||
1260                   ((bytes_per_line & 0x8000) != 0))
1261                 (void) CompositeImage(image,tile_image,CopyCompositeOp,
1262                   MagickTrue,destination.left,destination.top,exception);
1263             tile_image=DestroyImage(tile_image);
1264             break;
1265           }
1266           case 0xa1:
1267           {
1268             unsigned char
1269               *info;
1270
1271             size_t
1272               type;
1273
1274             /*
1275               Comment.
1276             */
1277             type=ReadBlobMSBShort(image);
1278             length=ReadBlobMSBShort(image);
1279             if (length == 0)
1280               break;
1281             (void) ReadBlobMSBLong(image);
1282             length-=4;
1283             if (length == 0)
1284               break;
1285             info=(unsigned char *) AcquireQuantumMemory(length,sizeof(*info));
1286             if (info == (unsigned char *) NULL)
1287               break;
1288             count=ReadBlob(image,length,info);
1289             (void) count;
1290             switch (type)
1291             {
1292               case 0xe0:
1293               {
1294                 if (length == 0)
1295                   break;
1296                 profile=BlobToStringInfo((const void *) NULL,length);
1297                 SetStringInfoDatum(profile,info);
1298                 status=SetImageProfile(image,"icc",profile,exception);
1299                 profile=DestroyStringInfo(profile);
1300                 if (status == MagickFalse)
1301                   ThrowReaderException(ResourceLimitError,
1302                     "MemoryAllocationFailed");
1303                 break;
1304               }
1305               case 0x1f2:
1306               {
1307                 if (length == 0)
1308                   break;
1309                 profile=BlobToStringInfo((const void *) NULL,length);
1310                 SetStringInfoDatum(profile,info);
1311                 status=SetImageProfile(image,"iptc",profile,exception);
1312                 if (status == MagickFalse)
1313                   ThrowReaderException(ResourceLimitError,
1314                     "MemoryAllocationFailed");
1315                 profile=DestroyStringInfo(profile);
1316                 break;
1317               }
1318               default:
1319                 break;
1320             }
1321             info=(unsigned char *) RelinquishMagickMemory(info);
1322             break;
1323           }
1324           default:
1325           {
1326             /*
1327               Skip to next op code.
1328             */
1329             if (codes[code].length == -1)
1330               (void) ReadBlobMSBShort(image);
1331             else
1332               for (i=0; i < (ssize_t) codes[code].length; i++)
1333                 (void) ReadBlobByte(image);
1334           }
1335         }
1336       }
1337     if (code == 0xc00)
1338       {
1339         /*
1340           Skip header.
1341         */
1342         for (i=0; i < 24; i++)
1343           (void) ReadBlobByte(image);
1344         continue;
1345       }
1346     if (((code >= 0xb0) && (code <= 0xcf)) ||
1347         ((code >= 0x8000) && (code <= 0x80ff)))
1348       continue;
1349     if (code == 0x8200)
1350       {
1351         FILE
1352           *file;
1353
1354         Image
1355           *tile_image;
1356
1357         ImageInfo
1358           *read_info;
1359
1360         int
1361           unique_file;
1362
1363         /*
1364           Embedded JPEG.
1365         */
1366         jpeg=MagickTrue;
1367         read_info=CloneImageInfo(image_info);
1368         SetImageInfoBlob(read_info,(void *) NULL,0);
1369         file=(FILE *) NULL;
1370         unique_file=AcquireUniqueFileResource(read_info->filename);
1371         if (unique_file != -1)
1372           file=fdopen(unique_file,"wb");
1373         if ((unique_file == -1) || (file == (FILE *) NULL))
1374           {
1375             (void) CopyMagickString(image->filename,read_info->filename,
1376               MaxTextExtent);
1377             ThrowFileException(exception,FileOpenError,
1378               "UnableToCreateTemporaryFile",image->filename);
1379             image=DestroyImageList(image);
1380             return((Image *) NULL);
1381           }
1382         length=ReadBlobMSBLong(image);
1383         for (i=0; i < 6; i++)
1384           (void) ReadBlobMSBLong(image);
1385         ReadRectangle(image,frame);
1386         for (i=0; i < 122; i++)
1387           (void) ReadBlobByte(image);
1388         for (i=0; i < (ssize_t) (length-154); i++)
1389         {
1390           c=ReadBlobByte(image);
1391           (void) fputc(c,file);
1392         }
1393         (void) fclose(file);
1394         tile_image=ReadImage(read_info,exception);
1395         (void) RelinquishUniqueFileResource(read_info->filename);
1396         read_info=DestroyImageInfo(read_info);
1397         if (tile_image == (Image *) NULL)
1398           continue;
1399         (void) FormatLocaleString(geometry,MaxTextExtent,"%.20gx%.20g",
1400           (double) MagickMax(image->columns,tile_image->columns),
1401           (double) MagickMax(image->rows,tile_image->rows));
1402         (void) SetImageExtent(image,
1403           MagickMax(image->columns,tile_image->columns),
1404           MagickMax(image->rows,tile_image->rows),exception);
1405         if (IssRGBCompatibleColorspace(tile_image->colorspace) == MagickFalse)
1406           (void) TransformImageColorspace(image,tile_image->colorspace,
1407             exception);
1408         (void) CompositeImage(image,tile_image,CopyCompositeOp,MagickTrue,
1409           frame.left,frame.right,exception);
1410         image->compression=tile_image->compression;
1411         tile_image=DestroyImage(tile_image);
1412         continue;
1413       }
1414     if ((code == 0xff) || (code == 0xffff))
1415       break;
1416     if (((code >= 0xd0) && (code <= 0xfe)) ||
1417         ((code >= 0x8100) && (code <= 0xffff)))
1418       {
1419         /*
1420           Skip reserved.
1421         */
1422         length=ReadBlobMSBShort(image);
1423         for (i=0; i < (ssize_t) length; i++)
1424           (void) ReadBlobByte(image);
1425         continue;
1426       }
1427     if ((code >= 0x100) && (code <= 0x7fff))
1428       {
1429         /*
1430           Skip reserved.
1431         */
1432         length=(size_t) ((code >> 7) & 0xff);
1433         for (i=0; i < (ssize_t) length; i++)
1434           (void) ReadBlobByte(image);
1435         continue;
1436       }
1437   }
1438   (void) CloseBlob(image);
1439   return(GetFirstImageInList(image));
1440 }
1441 #endif
1442 \f
1443 /*
1444 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1445 %                                                                             %
1446 %                                                                             %
1447 %                                                                             %
1448 %   R e g i s t e r P I C T I m a g e                                         %
1449 %                                                                             %
1450 %                                                                             %
1451 %                                                                             %
1452 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1453 %
1454 %  RegisterPICTImage() adds attributes for the PICT image format to
1455 %  the list of supported formats.  The attributes include the image format
1456 %  tag, a method to read and/or write the format, whether the format
1457 %  supports the saving of more than one frame to the same file or blob,
1458 %  whether the format supports native in-memory I/O, and a brief
1459 %  description of the format.
1460 %
1461 %  The format of the RegisterPICTImage method is:
1462 %
1463 %      size_t RegisterPICTImage(void)
1464 %
1465 */
1466 ModuleExport size_t RegisterPICTImage(void)
1467 {
1468   MagickInfo
1469     *entry;
1470
1471   entry=SetMagickInfo("PCT");
1472   entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1473   entry->encoder=(EncodeImageHandler *) WritePICTImage;
1474   entry->adjoin=MagickFalse;
1475   entry->seekable_stream=MagickTrue;
1476   entry->description=ConstantString("Apple Macintosh QuickDraw/PICT");
1477   entry->magick=(IsImageFormatHandler *) IsPICT;
1478   entry->module=ConstantString("PICT");
1479   (void) RegisterMagickInfo(entry);
1480   entry=SetMagickInfo("PICT");
1481   entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1482   entry->encoder=(EncodeImageHandler *) WritePICTImage;
1483   entry->adjoin=MagickFalse;
1484   entry->seekable_stream=MagickTrue;
1485   entry->description=ConstantString("Apple Macintosh QuickDraw/PICT");
1486   entry->magick=(IsImageFormatHandler *) IsPICT;
1487   entry->module=ConstantString("PICT");
1488   (void) RegisterMagickInfo(entry);
1489   return(MagickImageCoderSignature);
1490 }
1491 \f
1492 /*
1493 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1494 %                                                                             %
1495 %                                                                             %
1496 %                                                                             %
1497 %   U n r e g i s t e r P I C T I m a g e                                     %
1498 %                                                                             %
1499 %                                                                             %
1500 %                                                                             %
1501 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1502 %
1503 %  UnregisterPICTImage() removes format registrations made by the
1504 %  PICT module from the list of supported formats.
1505 %
1506 %  The format of the UnregisterPICTImage method is:
1507 %
1508 %      UnregisterPICTImage(void)
1509 %
1510 */
1511 ModuleExport void UnregisterPICTImage(void)
1512 {
1513   (void) UnregisterMagickInfo("PCT");
1514   (void) UnregisterMagickInfo("PICT");
1515 }
1516 \f
1517 /*
1518 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1519 %                                                                             %
1520 %                                                                             %
1521 %                                                                             %
1522 %   W r i t e P I C T I m a g e                                               %
1523 %                                                                             %
1524 %                                                                             %
1525 %                                                                             %
1526 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1527 %
1528 %  WritePICTImage() writes an image to a file in the Apple Macintosh
1529 %  QuickDraw/PICT image format.
1530 %
1531 %  The format of the WritePICTImage method is:
1532 %
1533 %      MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1534 %        Image *image,ExceptionInfo *exception)
1535 %
1536 %  A description of each parameter follows.
1537 %
1538 %    o image_info: the image info.
1539 %
1540 %    o image:  The image.
1541 %
1542 %    o exception: return any errors or warnings in this structure.
1543 %
1544 */
1545 static MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1546   Image *image,ExceptionInfo *exception)
1547 {
1548 #define MaxCount  128
1549 #define PictCropRegionOp  0x01
1550 #define PictEndOfPictureOp  0xff
1551 #define PictJPEGOp  0x8200
1552 #define PictInfoOp  0x0C00
1553 #define PictInfoSize  512
1554 #define PictPixmapOp  0x9A
1555 #define PictPICTOp  0x98
1556 #define PictVersion  0x11
1557
1558   const StringInfo
1559     *profile;
1560
1561   double
1562     x_resolution,
1563     y_resolution;
1564
1565   MagickBooleanType
1566     status;
1567
1568   MagickOffsetType
1569     offset;
1570
1571   PICTPixmap
1572     pixmap;
1573
1574   PICTRectangle
1575     bounds,
1576     crop_rectangle,
1577     destination_rectangle,
1578     frame_rectangle,
1579     size_rectangle,
1580     source_rectangle;
1581
1582   register const Quantum
1583     *p;
1584
1585   register ssize_t
1586     i,
1587     x;
1588
1589   size_t
1590     bytes_per_line,
1591     count,
1592     storage_class;
1593
1594   ssize_t
1595     y;
1596
1597   unsigned char
1598     *buffer,
1599     *packed_scanline,
1600     *scanline;
1601
1602   unsigned short
1603     base_address,
1604     row_bytes,
1605     transfer_mode;
1606
1607   /*
1608     Open output image file.
1609   */
1610   assert(image_info != (const ImageInfo *) NULL);
1611   assert(image_info->signature == MagickSignature);
1612   assert(image != (Image *) NULL);
1613   assert(image->signature == MagickSignature);
1614   if (image->debug != MagickFalse)
1615     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1616   if ((image->columns > 65535L) || (image->rows > 65535L))
1617     ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1618   assert(exception != (ExceptionInfo *) NULL);
1619   assert(exception->signature == MagickSignature);
1620   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
1621   if (status == MagickFalse)
1622     return(status);
1623   if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
1624     (void) TransformImageColorspace(image,sRGBColorspace,exception);
1625   /*
1626     Initialize image info.
1627   */
1628   size_rectangle.top=0;
1629   size_rectangle.left=0;
1630   size_rectangle.bottom=(short) image->rows;
1631   size_rectangle.right=(short) image->columns;
1632   frame_rectangle=size_rectangle;
1633   crop_rectangle=size_rectangle;
1634   source_rectangle=size_rectangle;
1635   destination_rectangle=size_rectangle;
1636   base_address=0xff;
1637   row_bytes=(unsigned short) (image->columns | 0x8000);
1638   bounds.top=0;
1639   bounds.left=0;
1640   bounds.bottom=(short) image->rows;
1641   bounds.right=(short) image->columns;
1642   pixmap.version=0;
1643   pixmap.pack_type=0;
1644   pixmap.pack_size=0;
1645   pixmap.pixel_type=0;
1646   pixmap.bits_per_pixel=8;
1647   pixmap.component_count=1;
1648   pixmap.component_size=8;
1649   pixmap.plane_bytes=0;
1650   pixmap.table=0;
1651   pixmap.reserved=0;
1652   transfer_mode=0;
1653   x_resolution=image->resolution.x != 0.0 ? image->resolution.x :
1654     DefaultResolution;
1655   y_resolution=image->resolution.y != 0.0 ? image->resolution.y :
1656     DefaultResolution;
1657   storage_class=image->storage_class;
1658   if (image_info->compression == JPEGCompression)
1659     storage_class=DirectClass;
1660   if ((storage_class == DirectClass) || (image->alpha_trait == BlendPixelTrait))
1661     {
1662       pixmap.component_count=image->alpha_trait ? 4 : 3;
1663       pixmap.pixel_type=16;
1664       pixmap.bits_per_pixel=32;
1665       pixmap.pack_type=0x04;
1666       transfer_mode=0x40;
1667       row_bytes=(unsigned short) ((4*image->columns) | 0x8000);
1668     }
1669   /*
1670     Allocate memory.
1671   */
1672   bytes_per_line=image->columns;
1673   if ((storage_class == DirectClass) || (image->alpha_trait == BlendPixelTrait))
1674     bytes_per_line*=image->alpha_trait ? 4 : 3;
1675   buffer=(unsigned char *) AcquireQuantumMemory(PictInfoSize,sizeof(*buffer));
1676   packed_scanline=(unsigned char *) AcquireQuantumMemory((size_t)
1677    (row_bytes+MaxCount),sizeof(*packed_scanline));
1678   scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
1679   if ((buffer == (unsigned char *) NULL) ||
1680       (packed_scanline == (unsigned char *) NULL) ||
1681       (scanline == (unsigned char *) NULL))
1682     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1683   (void) ResetMagickMemory(scanline,0,row_bytes);
1684   (void) ResetMagickMemory(packed_scanline,0,(size_t) (row_bytes+MaxCount));
1685   /*
1686     Write header, header size, size bounding box, version, and reserved.
1687   */
1688   (void) ResetMagickMemory(buffer,0,PictInfoSize);
1689   (void) WriteBlob(image,PictInfoSize,buffer);
1690   (void) WriteBlobMSBShort(image,0);
1691   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.top);
1692   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.left);
1693   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.bottom);
1694   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.right);
1695   (void) WriteBlobMSBShort(image,PictVersion);
1696   (void) WriteBlobMSBShort(image,0x02ff);  /* version #2 */
1697   (void) WriteBlobMSBShort(image,PictInfoOp);
1698   (void) WriteBlobMSBLong(image,0xFFFE0000UL);
1699   /*
1700     Write full size of the file, resolution, frame bounding box, and reserved.
1701   */
1702   (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1703   (void) WriteBlobMSBShort(image,0x0000);
1704   (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1705   (void) WriteBlobMSBShort(image,0x0000);
1706   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.top);
1707   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.left);
1708   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.bottom);
1709   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.right);
1710   (void) WriteBlobMSBLong(image,0x00000000L);
1711   profile=GetImageProfile(image,"iptc");
1712   if (profile != (StringInfo *) NULL)
1713     {
1714       (void) WriteBlobMSBShort(image,0xa1);
1715       (void) WriteBlobMSBShort(image,0x1f2);
1716       (void) WriteBlobMSBShort(image,(unsigned short)
1717         (GetStringInfoLength(profile)+4));
1718       (void) WriteBlobString(image,"8BIM");
1719       (void) WriteBlob(image,GetStringInfoLength(profile),
1720         GetStringInfoDatum(profile));
1721     }
1722   profile=GetImageProfile(image,"icc");
1723   if (profile != (StringInfo *) NULL)
1724     {
1725       (void) WriteBlobMSBShort(image,0xa1);
1726       (void) WriteBlobMSBShort(image,0xe0);
1727       (void) WriteBlobMSBShort(image,(unsigned short)
1728         (GetStringInfoLength(profile)+4));
1729       (void) WriteBlobMSBLong(image,0x00000000UL);
1730       (void) WriteBlob(image,GetStringInfoLength(profile),
1731         GetStringInfoDatum(profile));
1732       (void) WriteBlobMSBShort(image,0xa1);
1733       (void) WriteBlobMSBShort(image,0xe0);
1734       (void) WriteBlobMSBShort(image,4);
1735       (void) WriteBlobMSBLong(image,0x00000002UL);
1736     }
1737   /*
1738     Write crop region opcode and crop bounding box.
1739   */
1740   (void) WriteBlobMSBShort(image,PictCropRegionOp);
1741   (void) WriteBlobMSBShort(image,0xa);
1742   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.top);
1743   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.left);
1744   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.bottom);
1745   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.right);
1746   if (image_info->compression == JPEGCompression)
1747     {
1748       Image
1749         *jpeg_image;
1750
1751       ImageInfo
1752         *jpeg_info;
1753
1754       size_t
1755         length;
1756
1757       unsigned char
1758         *blob;
1759
1760       jpeg_image=CloneImage(image,0,0,MagickTrue,exception);
1761       if (jpeg_image == (Image *) NULL)
1762         {
1763           (void) CloseBlob(image);
1764           return(MagickFalse);
1765         }
1766       jpeg_info=CloneImageInfo(image_info);
1767       (void) CopyMagickString(jpeg_info->magick,"JPEG",MaxTextExtent);
1768       length=0;
1769       blob=(unsigned char *) ImageToBlob(jpeg_info,jpeg_image,&length,
1770         exception);
1771       jpeg_info=DestroyImageInfo(jpeg_info);
1772       if (blob == (unsigned char *) NULL)
1773         return(MagickFalse);
1774       jpeg_image=DestroyImage(jpeg_image);
1775       (void) WriteBlobMSBShort(image,PictJPEGOp);
1776       (void) WriteBlobMSBLong(image,(unsigned int) length+154);
1777       (void) WriteBlobMSBShort(image,0x0000);
1778       (void) WriteBlobMSBLong(image,0x00010000UL);
1779       (void) WriteBlobMSBLong(image,0x00000000UL);
1780       (void) WriteBlobMSBLong(image,0x00000000UL);
1781       (void) WriteBlobMSBLong(image,0x00000000UL);
1782       (void) WriteBlobMSBLong(image,0x00010000UL);
1783       (void) WriteBlobMSBLong(image,0x00000000UL);
1784       (void) WriteBlobMSBLong(image,0x00000000UL);
1785       (void) WriteBlobMSBLong(image,0x00000000UL);
1786       (void) WriteBlobMSBLong(image,0x40000000UL);
1787       (void) WriteBlobMSBLong(image,0x00000000UL);
1788       (void) WriteBlobMSBLong(image,0x00000000UL);
1789       (void) WriteBlobMSBLong(image,0x00000000UL);
1790       (void) WriteBlobMSBLong(image,0x00400000UL);
1791       (void) WriteBlobMSBShort(image,0x0000);
1792       (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1793       (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1794       (void) WriteBlobMSBShort(image,0x0000);
1795       (void) WriteBlobMSBShort(image,768);
1796       (void) WriteBlobMSBShort(image,0x0000);
1797       (void) WriteBlobMSBLong(image,0x00000000UL);
1798       (void) WriteBlobMSBLong(image,0x00566A70UL);
1799       (void) WriteBlobMSBLong(image,0x65670000UL);
1800       (void) WriteBlobMSBLong(image,0x00000000UL);
1801       (void) WriteBlobMSBLong(image,0x00000001UL);
1802       (void) WriteBlobMSBLong(image,0x00016170UL);
1803       (void) WriteBlobMSBLong(image,0x706C0000UL);
1804       (void) WriteBlobMSBLong(image,0x00000000UL);
1805       (void) WriteBlobMSBShort(image,768);
1806       (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1807       (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1808       (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1809       (void) WriteBlobMSBShort(image,0x0000);
1810       (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1811       (void) WriteBlobMSBLong(image,0x00000000UL);
1812       (void) WriteBlobMSBLong(image,0x87AC0001UL);
1813       (void) WriteBlobMSBLong(image,0x0B466F74UL);
1814       (void) WriteBlobMSBLong(image,0x6F202D20UL);
1815       (void) WriteBlobMSBLong(image,0x4A504547UL);
1816       (void) WriteBlobMSBLong(image,0x00000000UL);
1817       (void) WriteBlobMSBLong(image,0x00000000UL);
1818       (void) WriteBlobMSBLong(image,0x00000000UL);
1819       (void) WriteBlobMSBLong(image,0x00000000UL);
1820       (void) WriteBlobMSBLong(image,0x00000000UL);
1821       (void) WriteBlobMSBLong(image,0x0018FFFFUL);
1822       (void) WriteBlob(image,length,blob);
1823       if ((length & 0x01) != 0)
1824         (void) WriteBlobByte(image,'\0');
1825       blob=(unsigned char *) RelinquishMagickMemory(blob);
1826     }
1827   /*
1828     Write picture opcode, row bytes, and picture bounding box, and version.
1829   */
1830   if (storage_class == PseudoClass)
1831     (void) WriteBlobMSBShort(image,PictPICTOp);
1832   else
1833     {
1834       (void) WriteBlobMSBShort(image,PictPixmapOp);
1835       (void) WriteBlobMSBLong(image,(size_t) base_address);
1836     }
1837   (void) WriteBlobMSBShort(image,(unsigned short) (row_bytes | 0x8000));
1838   (void) WriteBlobMSBShort(image,(unsigned short) bounds.top);
1839   (void) WriteBlobMSBShort(image,(unsigned short) bounds.left);
1840   (void) WriteBlobMSBShort(image,(unsigned short) bounds.bottom);
1841   (void) WriteBlobMSBShort(image,(unsigned short) bounds.right);
1842   /*
1843     Write pack type, pack size, resolution, pixel type, and pixel size.
1844   */
1845   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.version);
1846   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pack_type);
1847   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.pack_size);
1848   (void) WriteBlobMSBShort(image,(unsigned short) (x_resolution+0.5));
1849   (void) WriteBlobMSBShort(image,0x0000);
1850   (void) WriteBlobMSBShort(image,(unsigned short) (y_resolution+0.5));
1851   (void) WriteBlobMSBShort(image,0x0000);
1852   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pixel_type);
1853   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.bits_per_pixel);
1854   /*
1855     Write component count, size, plane bytes, table size, and reserved.
1856   */
1857   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_count);
1858   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_size);
1859   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.plane_bytes);
1860   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.table);
1861   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.reserved);
1862   if (storage_class == PseudoClass)
1863     {
1864       /*
1865         Write image colormap.
1866       */
1867       (void) WriteBlobMSBLong(image,0x00000000L);  /* color seed */
1868       (void) WriteBlobMSBShort(image,0L);  /* color flags */
1869       (void) WriteBlobMSBShort(image,(unsigned short) (image->colors-1));
1870       for (i=0; i < (ssize_t) image->colors; i++)
1871       {
1872         (void) WriteBlobMSBShort(image,(unsigned short) i);
1873         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1874           image->colormap[i].red));
1875         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1876           image->colormap[i].green));
1877         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1878           image->colormap[i].blue));
1879       }
1880     }
1881   /*
1882     Write source and destination rectangle.
1883   */
1884   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.top);
1885   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.left);
1886   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.bottom);
1887   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.right);
1888   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.top);
1889   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.left);
1890   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.bottom);
1891   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.right);
1892   (void) WriteBlobMSBShort(image,(unsigned short) transfer_mode);
1893   /*
1894     Write picture data.
1895   */
1896   count=0;
1897   if ((storage_class == PseudoClass) && (image->alpha_trait != BlendPixelTrait))
1898     for (y=0; y < (ssize_t) image->rows; y++)
1899     {
1900       p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1901       if (p == (const Quantum *) NULL)
1902         break;
1903       for (x=0; x < (ssize_t) image->columns; x++)
1904       {
1905         scanline[x]=(unsigned char) GetPixelIndex(image,p);
1906         p+=GetPixelChannels(image);
1907       }
1908       count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1909         packed_scanline);
1910       if (image->previous == (Image *) NULL)
1911         {
1912           status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1913             image->rows);
1914           if (status == MagickFalse)
1915             break;
1916         }
1917     }
1918   else
1919     if (image_info->compression == JPEGCompression)
1920       {
1921         (void) ResetMagickMemory(scanline,0,row_bytes);
1922         for (y=0; y < (ssize_t) image->rows; y++)
1923           count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1924             packed_scanline);
1925       }
1926     else
1927       {
1928         register unsigned char
1929           *blue,
1930           *green,
1931           *opacity,
1932           *red;
1933
1934         red=scanline;
1935         green=scanline+image->columns;
1936         blue=scanline+2*image->columns;
1937         opacity=scanline+3*image->columns;
1938         for (y=0; y < (ssize_t) image->rows; y++)
1939         {
1940           p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1941           if (p == (const Quantum *) NULL)
1942             break;
1943           red=scanline;
1944           green=scanline+image->columns;
1945           blue=scanline+2*image->columns;
1946           if (image->alpha_trait == BlendPixelTrait)
1947             {
1948               opacity=scanline;
1949               red=scanline+image->columns;
1950               green=scanline+2*image->columns;
1951               blue=scanline+3*image->columns;
1952             }
1953           for (x=0; x < (ssize_t) image->columns; x++)
1954           {
1955             *red++=ScaleQuantumToChar(GetPixelRed(image,p));
1956             *green++=ScaleQuantumToChar(GetPixelGreen(image,p));
1957             *blue++=ScaleQuantumToChar(GetPixelBlue(image,p));
1958             if (image->alpha_trait == BlendPixelTrait)
1959               *opacity++=ScaleQuantumToChar((Quantum) (GetPixelAlpha(image,p)));
1960             p+=GetPixelChannels(image);
1961           }
1962           count+=EncodeImage(image,scanline,bytes_per_line & 0x7FFF,
1963             packed_scanline);
1964           if (image->previous == (Image *) NULL)
1965             {
1966               status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1967                 image->rows);
1968               if (status == MagickFalse)
1969                 break;
1970             }
1971         }
1972       }
1973   if ((count & 0x01) != 0)
1974     (void) WriteBlobByte(image,'\0');
1975   (void) WriteBlobMSBShort(image,PictEndOfPictureOp);
1976   offset=TellBlob(image);
1977   offset=SeekBlob(image,512,SEEK_SET);
1978   (void) WriteBlobMSBShort(image,(unsigned short) offset);
1979   scanline=(unsigned char *) RelinquishMagickMemory(scanline);
1980   packed_scanline=(unsigned char *) RelinquishMagickMemory(packed_scanline);
1981   buffer=(unsigned char *) RelinquishMagickMemory(buffer);
1982   (void) CloseBlob(image);
1983   return(MagickTrue);
1984 }