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 1999-2012 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/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->matte ? 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 < 528)
 749     return(MagickFalse);
 750   if (memcmp(magick+522,"\000\021\002\377\014\000",6) == 0)
 751     return(MagickTrue);
 752   return(MagickFalse);
 753 }
 754 \f
 755 #if !defined(macintosh)
 756 /*
 757 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 758 %                                                                             %
 759 %                                                                             %
 760 %                                                                             %
 761 %   R e a d P I C T I m a g e                                                 %
 762 %                                                                             %
 763 %                                                                             %
 764 %                                                                             %
 765 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 766 %
 767 %  ReadPICTImage() reads an Apple Macintosh QuickDraw/PICT image file
 768 %  and returns it.  It allocates the memory necessary for the new Image
 769 %  structure and returns a pointer to the new image.
 770 %
 771 %  The format of the ReadPICTImage method is:
 772 %
 773 %      Image *ReadPICTImage(const ImageInfo *image_info,
 774 %        ExceptionInfo *exception)
 775 %
 776 %  A description of each parameter follows:
 777 %
 778 %    o image_info: the image info.
 779 %
 780 %    o exception: return any errors or warnings in this structure.
 781 %
 782 */
 783
 784 static inline size_t MagickMax(const size_t x,
 785   const size_t y)
 786 {
 787   if (x > y)
 788     return(x);
 789   return(y);
 790 }
 791
 792 static Image *ReadPICTImage(const ImageInfo *image_info,
 793   ExceptionInfo *exception)
 794 {
 795   char
 796     geometry[MaxTextExtent];
 797
 798   Image
 799     *image;
 800
 801   int
 802     c,
 803     code;
 804
 805   MagickBooleanType
 806     jpeg,
 807     status;
 808
 809   PICTRectangle
 810     frame;
 811
 812   PICTPixmap
 813     pixmap;
 814
 815   Quantum
 816     index;
 817
 818   register Quantum
 819     *q;
 820
 821   register ssize_t
 822     i,
 823     x;
 824
 825   size_t
 826     extent,
 827     length;
 828
 829   ssize_t
 830     count,
 831     flags,
 832     j,
 833     version,
 834     y;
 835
 836   StringInfo
 837     *profile;
 838
 839   /*
 840     Open image file.
 841   */
 842   assert(image_info != (const ImageInfo *) NULL);
 843   assert(image_info->signature == MagickSignature);
 844   if (image_info->debug != MagickFalse)
 845     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 846       image_info->filename);
 847   assert(exception != (ExceptionInfo *) NULL);
 848   assert(exception->signature == MagickSignature);
 849   image=AcquireImage(image_info,exception);
 850   image->depth=8;
 851   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 852   if (status == MagickFalse)
 853     {
 854       image=DestroyImageList(image);
 855       return((Image *) NULL);
 856     }
 857   /*
 858     Read PICT header.
 859   */
 860   pixmap.bits_per_pixel=0;
 861   pixmap.component_count=0;
 862   for (i=0; i < 512; i++)
 863     (void) ReadBlobByte(image);  /* skip header */
 864   (void) ReadBlobMSBShort(image);  /* skip picture size */
 865   ReadRectangle(image,frame);
 866   while ((c=ReadBlobByte(image)) == 0) ;
 867   if (c != 0x11)
 868     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 869   version=ReadBlobByte(image);
 870   if (version == 2)
 871     {
 872       c=ReadBlobByte(image);
 873       if (c != 0xff)
 874         ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 875     }
 876   else
 877     if (version != 1)
 878       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 879   if ((frame.left < 0) || (frame.right < 0) || (frame.top < 0) ||
 880       (frame.bottom < 0) || (frame.left >= frame.right) ||
 881       (frame.top >= frame.bottom))
 882     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 883   /*
 884     Create black canvas.
 885   */
 886   flags=0;
 887   image->columns=1UL*(frame.right-frame.left);
 888   image->rows=1UL*(frame.bottom-frame.top);
 889   image->resolution.x=DefaultResolution;
 890   image->resolution.y=DefaultResolution;
 891   image->units=UndefinedResolution;
 892   /*
 893     Interpret PICT opcodes.
 894   */
 895   jpeg=MagickFalse;
 896   for (code=0; EOFBlob(image) == MagickFalse; )
 897   {
 898     if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
 899       if (image->scene >= (image_info->scene+image_info->number_scenes-1))
 900         break;
 901     if ((version == 1) || ((TellBlob(image) % 2) != 0))
 902       code=ReadBlobByte(image);
 903     if (version == 2)
 904       code=(int) ReadBlobMSBShort(image);
 905     if (code > 0xa1)
 906       {
 907         if (image->debug != MagickFalse)
 908           (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%04X:",code);
 909       }
 910     else
 911       {
 912         if (image->debug != MagickFalse)
 913           (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 914             "  %04X %s: %s",code,codes[code].name,codes[code].description);
 915         switch (code)
 916         {
 917           case 0x01:
 918           {
 919             /*
 920               Clipping rectangle.
 921             */
 922             length=ReadBlobMSBShort(image);
 923             if (length != 0x000a)
 924               {
 925                 for (i=0; i < (ssize_t) (length-2); i++)
 926                   (void) ReadBlobByte(image);
 927                 break;
 928               }
 929             ReadRectangle(image,frame);
 930             if (((frame.left & 0x8000) != 0) || ((frame.top & 0x8000) != 0))
 931               break;
 932             image->columns=1UL*(frame.right-frame.left);
 933             image->rows=1UL*(frame.bottom-frame.top);
 934             (void) SetImageBackgroundColor(image,exception);
 935             break;
 936           }
 937           case 0x12:
 938           case 0x13:
 939           case 0x14:
 940           {
 941             ssize_t
 942               pattern;
 943
 944             size_t
 945               height,
 946               width;
 947
 948             /*
 949               Skip pattern definition.
 950             */
 951             pattern=1L*ReadBlobMSBShort(image);
 952             for (i=0; i < 8; i++)
 953               (void) ReadBlobByte(image);
 954             if (pattern == 2)
 955               {
 956                 for (i=0; i < 5; i++)
 957                   (void) ReadBlobByte(image);
 958                 break;
 959               }
 960             if (pattern != 1)
 961               ThrowReaderException(CorruptImageError,"UnknownPatternType");
 962             length=ReadBlobMSBShort(image);
 963             ReadRectangle(image,frame);
 964             ReadPixmap(pixmap);
 965             image->depth=1UL*pixmap.component_size;
 966             image->resolution.x=1.0*pixmap.horizontal_resolution;
 967             image->resolution.y=1.0*pixmap.vertical_resolution;
 968             image->units=PixelsPerInchResolution;
 969             (void) ReadBlobMSBLong(image);
 970             flags=1L*ReadBlobMSBShort(image);
 971             length=ReadBlobMSBShort(image);
 972             for (i=0; i <= (ssize_t) length; i++)
 973               (void) ReadBlobMSBLong(image);
 974             width=1UL*(frame.bottom-frame.top);
 975             height=1UL*(frame.right-frame.left);
 976             if (pixmap.bits_per_pixel <= 8)
 977               length&=0x7fff;
 978             if (pixmap.bits_per_pixel == 16)
 979               width<<=1;
 980             if (length == 0)
 981               length=width;
 982             if (length < 8)
 983               {
 984                 for (i=0; i < (ssize_t) (length*height); i++)
 985                   (void) ReadBlobByte(image);
 986               }
 987             else
 988               for (j=0; j < (int) height; j++)
 989                 if (length > 200)
 990                   for (j=0; j < (ssize_t) ReadBlobMSBShort(image); j++)
 991                     (void) ReadBlobByte(image);
 992                 else
 993                   for (j=0; j < (ssize_t) ReadBlobByte(image); j++)
 994                     (void) ReadBlobByte(image);
 995             break;
 996           }
 997           case 0x1b:
 998           {
 999             /*
1000               Initialize image background color.
1001             */
1002             image->background_color.red=(Quantum)
1003               ScaleShortToQuantum(ReadBlobMSBShort(image));
1004             image->background_color.green=(Quantum)
1005               ScaleShortToQuantum(ReadBlobMSBShort(image));
1006             image->background_color.blue=(Quantum)
1007               ScaleShortToQuantum(ReadBlobMSBShort(image));
1008             break;
1009           }
1010           case 0x70:
1011           case 0x71:
1012           case 0x72:
1013           case 0x73:
1014           case 0x74:
1015           case 0x75:
1016           case 0x76:
1017           case 0x77:
1018           {
1019             /*
1020               Skip polygon or region.
1021             */
1022             length=ReadBlobMSBShort(image);
1023             for (i=0; i < (ssize_t) (length-2); i++)
1024               (void) ReadBlobByte(image);
1025             break;
1026           }
1027           case 0x90:
1028           case 0x91:
1029           case 0x98:
1030           case 0x99:
1031           case 0x9a:
1032           case 0x9b:
1033           {
1034             Image
1035               *tile_image;
1036
1037             PICTRectangle
1038               source,
1039               destination;
1040
1041             register unsigned char
1042               *p;
1043
1044             size_t
1045               j;
1046
1047             ssize_t
1048               bytes_per_line;
1049
1050             unsigned char
1051               *pixels;
1052
1053             /*
1054               Pixmap clipped by a rectangle.
1055             */
1056             bytes_per_line=0;
1057             if ((code != 0x9a) && (code != 0x9b))
1058               bytes_per_line=1L*ReadBlobMSBShort(image);
1059             else
1060               {
1061                 (void) ReadBlobMSBShort(image);
1062                 (void) ReadBlobMSBShort(image);
1063                 (void) ReadBlobMSBShort(image);
1064               }
1065             ReadRectangle(image,frame);
1066             /*
1067               Initialize tile image.
1068             */
1069             tile_image=CloneImage(image,1UL*(frame.right-frame.left),
1070               1UL*(frame.bottom-frame.top),MagickTrue,exception);
1071             if (tile_image == (Image *) NULL)
1072               return((Image *) NULL);
1073             if ((code == 0x9a) || (code == 0x9b) ||
1074                 ((bytes_per_line & 0x8000) != 0))
1075               {
1076                 ReadPixmap(pixmap);
1077                 tile_image->depth=1UL*pixmap.component_size;
1078                 tile_image->matte=pixmap.component_count == 4 ?
1079                   MagickTrue : MagickFalse;
1080                 tile_image->resolution.x=(double) pixmap.horizontal_resolution;
1081                 tile_image->resolution.y=(double) pixmap.vertical_resolution;
1082                 tile_image->units=PixelsPerInchResolution;
1083                 if (tile_image->matte != MagickFalse)
1084                   image->matte=tile_image->matte;
1085               }
1086             if ((code != 0x9a) && (code != 0x9b))
1087               {
1088                 /*
1089                   Initialize colormap.
1090                 */
1091                 tile_image->colors=2;
1092                 if ((bytes_per_line & 0x8000) != 0)
1093                   {
1094                     (void) ReadBlobMSBLong(image);
1095                     flags=1L*ReadBlobMSBShort(image);
1096                     tile_image->colors=1UL*ReadBlobMSBShort(image)+1;
1097                   }
1098                 status=AcquireImageColormap(tile_image,tile_image->colors,
1099                   exception);
1100                 if (status == MagickFalse)
1101                   {
1102                     tile_image=DestroyImage(tile_image);
1103                     ThrowReaderException(ResourceLimitError,
1104                       "MemoryAllocationFailed");
1105                   }
1106                 if ((bytes_per_line & 0x8000) != 0)
1107                   {
1108                     for (i=0; i < (ssize_t) tile_image->colors; i++)
1109                     {
1110                       j=ReadBlobMSBShort(image) % tile_image->colors;
1111                       if ((flags & 0x8000) != 0)
1112                         j=(size_t) i;
1113                       tile_image->colormap[j].red=(Quantum)
1114                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1115                       tile_image->colormap[j].green=(Quantum)
1116                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1117                       tile_image->colormap[j].blue=(Quantum)
1118                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1119                     }
1120                   }
1121                 else
1122                   {
1123                     for (i=0; i < (ssize_t) tile_image->colors; i++)
1124                     {
1125                       tile_image->colormap[i].red=(Quantum) (QuantumRange-
1126                         tile_image->colormap[i].red);
1127                       tile_image->colormap[i].green=(Quantum) (QuantumRange-
1128                         tile_image->colormap[i].green);
1129                       tile_image->colormap[i].blue=(Quantum) (QuantumRange-
1130                         tile_image->colormap[i].blue);
1131                     }
1132                   }
1133               }
1134             ReadRectangle(image,source);
1135             ReadRectangle(image,destination);
1136             (void) ReadBlobMSBShort(image);
1137             if ((code == 0x91) || (code == 0x99) || (code == 0x9b))
1138               {
1139                 /*
1140                   Skip region.
1141                 */
1142                 length=ReadBlobMSBShort(image);
1143                 for (i=0; i < (ssize_t) (length-2); i++)
1144                   (void) ReadBlobByte(image);
1145               }
1146             if ((code != 0x9a) && (code != 0x9b) &&
1147                 (bytes_per_line & 0x8000) == 0)
1148               pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1,&extent,
1149                 exception);
1150             else
1151               pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1U*
1152                 pixmap.bits_per_pixel,&extent,exception);
1153             if (pixels == (unsigned char *) NULL)
1154               {
1155                 tile_image=DestroyImage(tile_image);
1156                 ThrowReaderException(ResourceLimitError,
1157                   "MemoryAllocationFailed");
1158               }
1159             /*
1160               Convert PICT tile image to pixel packets.
1161             */
1162             p=pixels;
1163             for (y=0; y < (ssize_t) tile_image->rows; y++)
1164             {
1165               if (p > (pixels+extent+image->columns))
1166                 ThrowReaderException(CorruptImageError,"NotEnoughPixelData");
1167               q=QueueAuthenticPixels(tile_image,0,y,tile_image->columns,1,
1168                 exception);
1169               if (q == (Quantum *) NULL)
1170                 break;
1171               for (x=0; x < (ssize_t) tile_image->columns; x++)
1172               {
1173                 if (tile_image->storage_class == PseudoClass)
1174                   {
1175                     index=ConstrainColormapIndex(tile_image,*p,exception);
1176                     SetPixelIndex(tile_image,index,q);
1177                     SetPixelRed(tile_image,
1178                       tile_image->colormap[(ssize_t) index].red,q);
1179                     SetPixelGreen(tile_image,
1180                       tile_image->colormap[(ssize_t) index].green,q);
1181                     SetPixelBlue(tile_image,
1182                       tile_image->colormap[(ssize_t) index].blue,q);
1183                   }
1184                 else
1185                   {
1186                     if (pixmap.bits_per_pixel == 16)
1187                       {
1188                         i=(*p++);
1189                         j=(*p);
1190                         SetPixelRed(tile_image,ScaleCharToQuantum(
1191                           (unsigned char) ((i & 0x7c) << 1)),q);
1192                         SetPixelGreen(tile_image,ScaleCharToQuantum(
1193                           (unsigned char) (((i & 0x03) << 6) |
1194                           ((j & 0xe0) >> 2))),q);
1195                         SetPixelBlue(tile_image,ScaleCharToQuantum(
1196                           (unsigned char) ((j & 0x1f) << 3)),q);
1197                       }
1198                     else
1199                       if (tile_image->matte == MagickFalse)
1200                         {
1201                           if (p > (pixels+extent+2*image->columns))
1202                             ThrowReaderException(CorruptImageError,
1203                               "NotEnoughPixelData");
1204                           SetPixelRed(tile_image,ScaleCharToQuantum(*p),q);
1205                           SetPixelGreen(tile_image,ScaleCharToQuantum(
1206                             *(p+tile_image->columns)),q);
1207                           SetPixelBlue(tile_image,ScaleCharToQuantum(
1208                             *(p+2*tile_image->columns)),q);
1209                         }
1210                       else
1211                         {
1212                           if (p > (pixels+extent+3*image->columns))
1213                             ThrowReaderException(CorruptImageError,
1214                               "NotEnoughPixelData");
1215                           SetPixelAlpha(tile_image,ScaleCharToQuantum(*p),q);
1216                           SetPixelRed(tile_image,ScaleCharToQuantum(
1217                             *(p+tile_image->columns)),q);
1218                           SetPixelGreen(tile_image,ScaleCharToQuantum(
1219                             *(p+2*tile_image->columns)),q);
1220                           SetPixelBlue(tile_image,ScaleCharToQuantum(
1221                             *(p+3*tile_image->columns)),q);
1222                         }
1223                   }
1224                 p++;
1225                 q+=GetPixelChannels(tile_image);
1226               }
1227               if (SyncAuthenticPixels(tile_image,exception) == MagickFalse)
1228                 break;
1229               if ((tile_image->storage_class == DirectClass) &&
1230                   (pixmap.bits_per_pixel != 16))
1231                 {
1232                   p+=(pixmap.component_count-1)*tile_image->columns;
1233                   if (p < pixels)
1234                     break;
1235                 }
1236               status=SetImageProgress(image,LoadImageTag,y,tile_image->rows);
1237               if (status == MagickFalse)
1238                 break;
1239             }
1240             pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1241             if (jpeg == MagickFalse)
1242               if ((code == 0x9a) || (code == 0x9b) ||
1243                   ((bytes_per_line & 0x8000) != 0))
1244                 (void) CompositeImage(image,tile_image,CopyCompositeOp,
1245                   MagickTrue,destination.left,destination.top,exception);
1246             tile_image=DestroyImage(tile_image);
1247             break;
1248           }
1249           case 0xa1:
1250           {
1251             unsigned char
1252               *info;
1253
1254             size_t
1255               type;
1256
1257             /*
1258               Comment.
1259             */
1260             type=ReadBlobMSBShort(image);
1261             length=ReadBlobMSBShort(image);
1262             if (length == 0)
1263               break;
1264             (void) ReadBlobMSBLong(image);
1265             length-=4;
1266             if (length == 0)
1267               break;
1268             info=(unsigned char *) AcquireQuantumMemory(length,sizeof(*info));
1269             if (info == (unsigned char *) NULL)
1270               break;
1271             count=ReadBlob(image,length,info);
1272             (void) count;
1273             switch (type)
1274             {
1275               case 0xe0:
1276               {
1277                 if (length == 0)
1278                   break;
1279                 profile=BlobToStringInfo((const void *) NULL,length);
1280                 SetStringInfoDatum(profile,info);
1281                 status=SetImageProfile(image,"icc",profile,exception);
1282                 profile=DestroyStringInfo(profile);
1283                 if (status == MagickFalse)
1284                   ThrowReaderException(ResourceLimitError,
1285                     "MemoryAllocationFailed");
1286                 break;
1287               }
1288               case 0x1f2:
1289               {
1290                 if (length == 0)
1291                   break;
1292                 profile=BlobToStringInfo((const void *) NULL,length);
1293                 SetStringInfoDatum(profile,info);
1294                 status=SetImageProfile(image,"iptc",profile,exception);
1295                 if (status == MagickFalse)
1296                   ThrowReaderException(ResourceLimitError,
1297                     "MemoryAllocationFailed");
1298                 profile=DestroyStringInfo(profile);
1299                 break;
1300               }
1301               default:
1302                 break;
1303             }
1304             info=(unsigned char *) RelinquishMagickMemory(info);
1305             break;
1306           }
1307           default:
1308           {
1309             /*
1310               Skip to next op code.
1311             */
1312             if (codes[code].length == -1)
1313               (void) ReadBlobMSBShort(image);
1314             else
1315               for (i=0; i < (ssize_t) codes[code].length; i++)
1316                 (void) ReadBlobByte(image);
1317           }
1318         }
1319       }
1320     if (code == 0xc00)
1321       {
1322         /*
1323           Skip header.
1324         */
1325         for (i=0; i < 24; i++)
1326           (void) ReadBlobByte(image);
1327         continue;
1328       }
1329     if (((code >= 0xb0) && (code <= 0xcf)) ||
1330         ((code >= 0x8000) && (code <= 0x80ff)))
1331       continue;
1332     if (code == 0x8200)
1333       {
1334         FILE
1335           *file;
1336
1337         Image
1338           *tile_image;
1339
1340         ImageInfo
1341           *read_info;
1342
1343         int
1344           unique_file;
1345
1346         /*
1347           Embedded JPEG.
1348         */
1349         jpeg=MagickTrue;
1350         read_info=CloneImageInfo(image_info);
1351         SetImageInfoBlob(read_info,(void *) NULL,0);
1352         file=(FILE *) NULL;
1353         unique_file=AcquireUniqueFileResource(read_info->filename);
1354         if (unique_file != -1)
1355           file=fdopen(unique_file,"wb");
1356         if ((unique_file == -1) || (file == (FILE *) NULL))
1357           {
1358             (void) CopyMagickString(image->filename,read_info->filename,
1359               MaxTextExtent);
1360             ThrowFileException(exception,FileOpenError,
1361               "UnableToCreateTemporaryFile",image->filename);
1362             image=DestroyImageList(image);
1363             return((Image *) NULL);
1364           }
1365         length=ReadBlobMSBLong(image);
1366         for (i=0; i < 6; i++)
1367           (void) ReadBlobMSBLong(image);
1368         ReadRectangle(image,frame);
1369         for (i=0; i < 122; i++)
1370           (void) ReadBlobByte(image);
1371         for (i=0; i < (ssize_t) (length-154); i++)
1372         {
1373           c=ReadBlobByte(image);
1374           (void) fputc(c,file);
1375         }
1376         (void) fclose(file);
1377         tile_image=ReadImage(read_info,exception);
1378         (void) RelinquishUniqueFileResource(read_info->filename);
1379         read_info=DestroyImageInfo(read_info);
1380         if (tile_image == (Image *) NULL)
1381           continue;
1382         (void) FormatLocaleString(geometry,MaxTextExtent,"%.20gx%.20g",
1383           (double) MagickMax(image->columns,tile_image->columns),
1384           (double) MagickMax(image->rows,tile_image->rows));
1385         (void) SetImageExtent(image,
1386           MagickMax(image->columns,tile_image->columns),
1387           MagickMax(image->rows,tile_image->rows),exception);
1388         if (IssRGBCompatibleColorspace(tile_image->colorspace) == MagickFalse)
1389           (void) TransformImageColorspace(image,tile_image->colorspace,
1390             exception);
1391         (void) CompositeImage(image,tile_image,CopyCompositeOp,MagickTrue,
1392           frame.left,frame.right,exception);
1393         image->compression=tile_image->compression;
1394         tile_image=DestroyImage(tile_image);
1395         continue;
1396       }
1397     if ((code == 0xff) || (code == 0xffff))
1398       break;
1399     if (((code >= 0xd0) && (code <= 0xfe)) ||
1400         ((code >= 0x8100) && (code <= 0xffff)))
1401       {
1402         /*
1403           Skip reserved.
1404         */
1405         length=ReadBlobMSBShort(image);
1406         for (i=0; i < (ssize_t) length; i++)
1407           (void) ReadBlobByte(image);
1408         continue;
1409       }
1410     if ((code >= 0x100) && (code <= 0x7fff))
1411       {
1412         /*
1413           Skip reserved.
1414         */
1415         length=(size_t) ((code >> 7) & 0xff);
1416         for (i=0; i < (ssize_t) length; i++)
1417           (void) ReadBlobByte(image);
1418         continue;
1419       }
1420   }
1421   (void) CloseBlob(image);
1422   return(GetFirstImageInList(image));
1423 }
1424 #endif
1425 \f
1426 /*
1427 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1428 %                                                                             %
1429 %                                                                             %
1430 %                                                                             %
1431 %   R e g i s t e r P I C T I m a g e                                         %
1432 %                                                                             %
1433 %                                                                             %
1434 %                                                                             %
1435 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1436 %
1437 %  RegisterPICTImage() adds attributes for the PICT image format to
1438 %  the list of supported formats.  The attributes include the image format
1439 %  tag, a method to read and/or write the format, whether the format
1440 %  supports the saving of more than one frame to the same file or blob,
1441 %  whether the format supports native in-memory I/O, and a brief
1442 %  description of the format.
1443 %
1444 %  The format of the RegisterPICTImage method is:
1445 %
1446 %      size_t RegisterPICTImage(void)
1447 %
1448 */
1449 ModuleExport size_t RegisterPICTImage(void)
1450 {
1451   MagickInfo
1452     *entry;
1453
1454   entry=SetMagickInfo("PCT");
1455   entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1456   entry->encoder=(EncodeImageHandler *) WritePICTImage;
1457   entry->adjoin=MagickFalse;
1458   entry->seekable_stream=MagickTrue;
1459   entry->description=ConstantString("Apple Macintosh QuickDraw/PICT");
1460   entry->magick=(IsImageFormatHandler *) IsPICT;
1461   entry->module=ConstantString("PICT");
1462   (void) RegisterMagickInfo(entry);
1463   entry=SetMagickInfo("PICT");
1464   entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1465   entry->encoder=(EncodeImageHandler *) WritePICTImage;
1466   entry->adjoin=MagickFalse;
1467   entry->seekable_stream=MagickTrue;
1468   entry->description=ConstantString("Apple Macintosh QuickDraw/PICT");
1469   entry->magick=(IsImageFormatHandler *) IsPICT;
1470   entry->module=ConstantString("PICT");
1471   (void) RegisterMagickInfo(entry);
1472   return(MagickImageCoderSignature);
1473 }
1474 \f
1475 /*
1476 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1477 %                                                                             %
1478 %                                                                             %
1479 %                                                                             %
1480 %   U n r e g i s t e r P I C T I m a g e                                     %
1481 %                                                                             %
1482 %                                                                             %
1483 %                                                                             %
1484 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1485 %
1486 %  UnregisterPICTImage() removes format registrations made by the
1487 %  PICT module from the list of supported formats.
1488 %
1489 %  The format of the UnregisterPICTImage method is:
1490 %
1491 %      UnregisterPICTImage(void)
1492 %
1493 */
1494 ModuleExport void UnregisterPICTImage(void)
1495 {
1496   (void) UnregisterMagickInfo("PCT");
1497   (void) UnregisterMagickInfo("PICT");
1498 }
1499 \f
1500 /*
1501 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1502 %                                                                             %
1503 %                                                                             %
1504 %                                                                             %
1505 %   W r i t e P I C T I m a g e                                               %
1506 %                                                                             %
1507 %                                                                             %
1508 %                                                                             %
1509 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1510 %
1511 %  WritePICTImage() writes an image to a file in the Apple Macintosh
1512 %  QuickDraw/PICT image format.
1513 %
1514 %  The format of the WritePICTImage method is:
1515 %
1516 %      MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1517 %        Image *image,ExceptionInfo *exception)
1518 %
1519 %  A description of each parameter follows.
1520 %
1521 %    o image_info: the image info.
1522 %
1523 %    o image:  The image.
1524 %
1525 %    o exception: return any errors or warnings in this structure.
1526 %
1527 */
1528 static MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1529   Image *image,ExceptionInfo *exception)
1530 {
1531 #define MaxCount  128
1532 #define PictCropRegionOp  0x01
1533 #define PictEndOfPictureOp  0xff
1534 #define PictJPEGOp  0x8200
1535 #define PictInfoOp  0x0C00
1536 #define PictInfoSize  512
1537 #define PictPixmapOp  0x9A
1538 #define PictPICTOp  0x98
1539 #define PictVersion  0x11
1540
1541   const StringInfo
1542     *profile;
1543
1544   double
1545     x_resolution,
1546     y_resolution;
1547
1548   MagickBooleanType
1549     status;
1550
1551   MagickOffsetType
1552     offset;
1553
1554   PICTPixmap
1555     pixmap;
1556
1557   PICTRectangle
1558     bounds,
1559     crop_rectangle,
1560     destination_rectangle,
1561     frame_rectangle,
1562     size_rectangle,
1563     source_rectangle;
1564
1565   register const Quantum
1566     *p;
1567
1568   register ssize_t
1569     i,
1570     x;
1571
1572   size_t
1573     bytes_per_line,
1574     count,
1575     storage_class;
1576
1577   ssize_t
1578     y;
1579
1580   unsigned char
1581     *buffer,
1582     *packed_scanline,
1583     *scanline;
1584
1585   unsigned short
1586     base_address,
1587     row_bytes,
1588     transfer_mode;
1589
1590   /*
1591     Open output image file.
1592   */
1593   assert(image_info != (const ImageInfo *) NULL);
1594   assert(image_info->signature == MagickSignature);
1595   assert(image != (Image *) NULL);
1596   assert(image->signature == MagickSignature);
1597   if (image->debug != MagickFalse)
1598     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1599   if ((image->columns > 65535L) || (image->rows > 65535L))
1600     ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1601   assert(exception != (ExceptionInfo *) NULL);
1602   assert(exception->signature == MagickSignature);
1603   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
1604   if (status == MagickFalse)
1605     return(status);
1606   if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
1607     (void) TransformImageColorspace(image,sRGBColorspace,exception);
1608   /*
1609     Initialize image info.
1610   */
1611   size_rectangle.top=0;
1612   size_rectangle.left=0;
1613   size_rectangle.bottom=(short) image->rows;
1614   size_rectangle.right=(short) image->columns;
1615   frame_rectangle=size_rectangle;
1616   crop_rectangle=size_rectangle;
1617   source_rectangle=size_rectangle;
1618   destination_rectangle=size_rectangle;
1619   base_address=0xff;
1620   row_bytes=(unsigned short) (image->columns | 0x8000);
1621   bounds.top=0;
1622   bounds.left=0;
1623   bounds.bottom=(short) image->rows;
1624   bounds.right=(short) image->columns;
1625   pixmap.version=0;
1626   pixmap.pack_type=0;
1627   pixmap.pack_size=0;
1628   pixmap.pixel_type=0;
1629   pixmap.bits_per_pixel=8;
1630   pixmap.component_count=1;
1631   pixmap.component_size=8;
1632   pixmap.plane_bytes=0;
1633   pixmap.table=0;
1634   pixmap.reserved=0;
1635   transfer_mode=0;
1636   x_resolution=image->resolution.x != 0.0 ? image->resolution.x :
1637     DefaultResolution;
1638   y_resolution=image->resolution.y != 0.0 ? image->resolution.y :
1639     DefaultResolution;
1640   storage_class=image->storage_class;
1641   if (image_info->compression == JPEGCompression)
1642     storage_class=DirectClass;
1643   if ((storage_class == DirectClass) || (image->matte != MagickFalse))
1644     {
1645       pixmap.component_count=image->matte ? 4 : 3;
1646       pixmap.pixel_type=16;
1647       pixmap.bits_per_pixel=32;
1648       pixmap.pack_type=0x04;
1649       transfer_mode=0x40;
1650       row_bytes=(unsigned short) ((4*image->columns) | 0x8000);
1651     }
1652   /*
1653     Allocate memory.
1654   */
1655   bytes_per_line=image->columns;
1656   if ((storage_class == DirectClass) || (image->matte != MagickFalse))
1657     bytes_per_line*=image->matte ? 4 : 3;
1658   buffer=(unsigned char *) AcquireQuantumMemory(PictInfoSize,sizeof(*buffer));
1659   packed_scanline=(unsigned char *) AcquireQuantumMemory((size_t)
1660    (row_bytes+MaxCount),sizeof(*packed_scanline));
1661   scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
1662   if ((buffer == (unsigned char *) NULL) ||
1663       (packed_scanline == (unsigned char *) NULL) ||
1664       (scanline == (unsigned char *) NULL))
1665     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1666   (void) ResetMagickMemory(scanline,0,row_bytes);
1667   (void) ResetMagickMemory(packed_scanline,0,(size_t) (row_bytes+MaxCount));
1668   /*
1669     Write header, header size, size bounding box, version, and reserved.
1670   */
1671   (void) ResetMagickMemory(buffer,0,PictInfoSize);
1672   (void) WriteBlob(image,PictInfoSize,buffer);
1673   (void) WriteBlobMSBShort(image,0);
1674   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.top);
1675   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.left);
1676   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.bottom);
1677   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.right);
1678   (void) WriteBlobMSBShort(image,PictVersion);
1679   (void) WriteBlobMSBShort(image,0x02ff);  /* version #2 */
1680   (void) WriteBlobMSBShort(image,PictInfoOp);
1681   (void) WriteBlobMSBLong(image,0xFFFE0000UL);
1682   /*
1683     Write full size of the file, resolution, frame bounding box, and reserved.
1684   */
1685   (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1686   (void) WriteBlobMSBShort(image,0x0000);
1687   (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1688   (void) WriteBlobMSBShort(image,0x0000);
1689   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.top);
1690   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.left);
1691   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.bottom);
1692   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.right);
1693   (void) WriteBlobMSBLong(image,0x00000000L);
1694   profile=GetImageProfile(image,"iptc");
1695   if (profile != (StringInfo *) NULL)
1696     {
1697       (void) WriteBlobMSBShort(image,0xa1);
1698       (void) WriteBlobMSBShort(image,0x1f2);
1699       (void) WriteBlobMSBShort(image,(unsigned short)
1700         (GetStringInfoLength(profile)+4));
1701       (void) WriteBlobString(image,"8BIM");
1702       (void) WriteBlob(image,GetStringInfoLength(profile),
1703         GetStringInfoDatum(profile));
1704     }
1705   profile=GetImageProfile(image,"icc");
1706   if (profile != (StringInfo *) NULL)
1707     {
1708       (void) WriteBlobMSBShort(image,0xa1);
1709       (void) WriteBlobMSBShort(image,0xe0);
1710       (void) WriteBlobMSBShort(image,(unsigned short)
1711         (GetStringInfoLength(profile)+4));
1712       (void) WriteBlobMSBLong(image,0x00000000UL);
1713       (void) WriteBlob(image,GetStringInfoLength(profile),
1714         GetStringInfoDatum(profile));
1715       (void) WriteBlobMSBShort(image,0xa1);
1716       (void) WriteBlobMSBShort(image,0xe0);
1717       (void) WriteBlobMSBShort(image,4);
1718       (void) WriteBlobMSBLong(image,0x00000002UL);
1719     }
1720   /*
1721     Write crop region opcode and crop bounding box.
1722   */
1723   (void) WriteBlobMSBShort(image,PictCropRegionOp);
1724   (void) WriteBlobMSBShort(image,0xa);
1725   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.top);
1726   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.left);
1727   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.bottom);
1728   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.right);
1729   if (image_info->compression == JPEGCompression)
1730     {
1731       Image
1732         *jpeg_image;
1733
1734       ImageInfo
1735         *jpeg_info;
1736
1737       size_t
1738         length;
1739
1740       unsigned char
1741         *blob;
1742
1743       jpeg_image=CloneImage(image,0,0,MagickTrue,exception);
1744       if (jpeg_image == (Image *) NULL)
1745         {
1746           (void) CloseBlob(image);
1747           return(MagickFalse);
1748         }
1749       jpeg_info=CloneImageInfo(image_info);
1750       (void) CopyMagickString(jpeg_info->magick,"JPEG",MaxTextExtent);
1751       length=0;
1752       blob=(unsigned char *) ImageToBlob(jpeg_info,jpeg_image,&length,
1753         exception);
1754       jpeg_info=DestroyImageInfo(jpeg_info);
1755       if (blob == (unsigned char *) NULL)
1756         return(MagickFalse);
1757       jpeg_image=DestroyImage(jpeg_image);
1758       (void) WriteBlobMSBShort(image,PictJPEGOp);
1759       (void) WriteBlobMSBLong(image,(unsigned int) length+154);
1760       (void) WriteBlobMSBShort(image,0x0000);
1761       (void) WriteBlobMSBLong(image,0x00010000UL);
1762       (void) WriteBlobMSBLong(image,0x00000000UL);
1763       (void) WriteBlobMSBLong(image,0x00000000UL);
1764       (void) WriteBlobMSBLong(image,0x00000000UL);
1765       (void) WriteBlobMSBLong(image,0x00010000UL);
1766       (void) WriteBlobMSBLong(image,0x00000000UL);
1767       (void) WriteBlobMSBLong(image,0x00000000UL);
1768       (void) WriteBlobMSBLong(image,0x00000000UL);
1769       (void) WriteBlobMSBLong(image,0x40000000UL);
1770       (void) WriteBlobMSBLong(image,0x00000000UL);
1771       (void) WriteBlobMSBLong(image,0x00000000UL);
1772       (void) WriteBlobMSBLong(image,0x00000000UL);
1773       (void) WriteBlobMSBLong(image,0x00400000UL);
1774       (void) WriteBlobMSBShort(image,0x0000);
1775       (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1776       (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1777       (void) WriteBlobMSBShort(image,0x0000);
1778       (void) WriteBlobMSBShort(image,768);
1779       (void) WriteBlobMSBShort(image,0x0000);
1780       (void) WriteBlobMSBLong(image,0x00000000UL);
1781       (void) WriteBlobMSBLong(image,0x00566A70UL);
1782       (void) WriteBlobMSBLong(image,0x65670000UL);
1783       (void) WriteBlobMSBLong(image,0x00000000UL);
1784       (void) WriteBlobMSBLong(image,0x00000001UL);
1785       (void) WriteBlobMSBLong(image,0x00016170UL);
1786       (void) WriteBlobMSBLong(image,0x706C0000UL);
1787       (void) WriteBlobMSBLong(image,0x00000000UL);
1788       (void) WriteBlobMSBShort(image,768);
1789       (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1790       (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1791       (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1792       (void) WriteBlobMSBShort(image,0x0000);
1793       (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1794       (void) WriteBlobMSBLong(image,0x00000000UL);
1795       (void) WriteBlobMSBLong(image,0x87AC0001UL);
1796       (void) WriteBlobMSBLong(image,0x0B466F74UL);
1797       (void) WriteBlobMSBLong(image,0x6F202D20UL);
1798       (void) WriteBlobMSBLong(image,0x4A504547UL);
1799       (void) WriteBlobMSBLong(image,0x00000000UL);
1800       (void) WriteBlobMSBLong(image,0x00000000UL);
1801       (void) WriteBlobMSBLong(image,0x00000000UL);
1802       (void) WriteBlobMSBLong(image,0x00000000UL);
1803       (void) WriteBlobMSBLong(image,0x00000000UL);
1804       (void) WriteBlobMSBLong(image,0x0018FFFFUL);
1805       (void) WriteBlob(image,length,blob);
1806       if ((length & 0x01) != 0)
1807         (void) WriteBlobByte(image,'\0');
1808       blob=(unsigned char *) RelinquishMagickMemory(blob);
1809     }
1810   /*
1811     Write picture opcode, row bytes, and picture bounding box, and version.
1812   */
1813   if (storage_class == PseudoClass)
1814     (void) WriteBlobMSBShort(image,PictPICTOp);
1815   else
1816     {
1817       (void) WriteBlobMSBShort(image,PictPixmapOp);
1818       (void) WriteBlobMSBLong(image,(size_t) base_address);
1819     }
1820   (void) WriteBlobMSBShort(image,(unsigned short) (row_bytes | 0x8000));
1821   (void) WriteBlobMSBShort(image,(unsigned short) bounds.top);
1822   (void) WriteBlobMSBShort(image,(unsigned short) bounds.left);
1823   (void) WriteBlobMSBShort(image,(unsigned short) bounds.bottom);
1824   (void) WriteBlobMSBShort(image,(unsigned short) bounds.right);
1825   /*
1826     Write pack type, pack size, resolution, pixel type, and pixel size.
1827   */
1828   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.version);
1829   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pack_type);
1830   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.pack_size);
1831   (void) WriteBlobMSBShort(image,(unsigned short) (x_resolution+0.5));
1832   (void) WriteBlobMSBShort(image,0x0000);
1833   (void) WriteBlobMSBShort(image,(unsigned short) (y_resolution+0.5));
1834   (void) WriteBlobMSBShort(image,0x0000);
1835   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pixel_type);
1836   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.bits_per_pixel);
1837   /*
1838     Write component count, size, plane bytes, table size, and reserved.
1839   */
1840   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_count);
1841   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_size);
1842   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.plane_bytes);
1843   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.table);
1844   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.reserved);
1845   if (storage_class == PseudoClass)
1846     {
1847       /*
1848         Write image colormap.
1849       */
1850       (void) WriteBlobMSBLong(image,0x00000000L);  /* color seed */
1851       (void) WriteBlobMSBShort(image,0L);  /* color flags */
1852       (void) WriteBlobMSBShort(image,(unsigned short) (image->colors-1));
1853       for (i=0; i < (ssize_t) image->colors; i++)
1854       {
1855         (void) WriteBlobMSBShort(image,(unsigned short) i);
1856         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1857           image->colormap[i].red));
1858         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1859           image->colormap[i].green));
1860         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1861           image->colormap[i].blue));
1862       }
1863     }
1864   /*
1865     Write source and destination rectangle.
1866   */
1867   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.top);
1868   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.left);
1869   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.bottom);
1870   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.right);
1871   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.top);
1872   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.left);
1873   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.bottom);
1874   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.right);
1875   (void) WriteBlobMSBShort(image,(unsigned short) transfer_mode);
1876   /*
1877     Write picture data.
1878   */
1879   count=0;
1880   if ((storage_class == PseudoClass) && (image->matte == MagickFalse))
1881     for (y=0; y < (ssize_t) image->rows; y++)
1882     {
1883       p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1884       if (p == (const Quantum *) NULL)
1885         break;
1886       for (x=0; x < (ssize_t) image->columns; x++)
1887       {
1888         scanline[x]=(unsigned char) GetPixelIndex(image,p);
1889         p+=GetPixelChannels(image);
1890       }
1891       count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1892         packed_scanline);
1893       if (image->previous == (Image *) NULL)
1894         {
1895           status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1896             image->rows);
1897           if (status == MagickFalse)
1898             break;
1899         }
1900     }
1901   else
1902     if (image_info->compression == JPEGCompression)
1903       {
1904         (void) ResetMagickMemory(scanline,0,row_bytes);
1905         for (y=0; y < (ssize_t) image->rows; y++)
1906           count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1907             packed_scanline);
1908       }
1909     else
1910       {
1911         register unsigned char
1912           *blue,
1913           *green,
1914           *opacity,
1915           *red;
1916
1917         red=scanline;
1918         green=scanline+image->columns;
1919         blue=scanline+2*image->columns;
1920         opacity=scanline+3*image->columns;
1921         for (y=0; y < (ssize_t) image->rows; y++)
1922         {
1923           p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1924           if (p == (const Quantum *) NULL)
1925             break;
1926           red=scanline;
1927           green=scanline+image->columns;
1928           blue=scanline+2*image->columns;
1929           if (image->matte != MagickFalse)
1930             {
1931               opacity=scanline;
1932               red=scanline+image->columns;
1933               green=scanline+2*image->columns;
1934               blue=scanline+3*image->columns;
1935             }
1936           for (x=0; x < (ssize_t) image->columns; x++)
1937           {
1938             *red++=ScaleQuantumToChar(GetPixelRed(image,p));
1939             *green++=ScaleQuantumToChar(GetPixelGreen(image,p));
1940             *blue++=ScaleQuantumToChar(GetPixelBlue(image,p));
1941             if (image->matte != MagickFalse)
1942               *opacity++=ScaleQuantumToChar((Quantum) (GetPixelAlpha(image,p)));
1943             p+=GetPixelChannels(image);
1944           }
1945           count+=EncodeImage(image,scanline,bytes_per_line & 0x7FFF,
1946             packed_scanline);
1947           if (image->previous == (Image *) NULL)
1948             {
1949               status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1950                 image->rows);
1951               if (status == MagickFalse)
1952                 break;
1953             }
1954         }
1955       }
1956   if ((count & 0x01) != 0)
1957     (void) WriteBlobByte(image,'\0');
1958   (void) WriteBlobMSBShort(image,PictEndOfPictureOp);
1959   offset=TellBlob(image);
1960   offset=SeekBlob(image,512,SEEK_SET);
1961   (void) WriteBlobMSBShort(image,(unsigned short) offset);
1962   scanline=(unsigned char *) RelinquishMagickMemory(scanline);
1963   packed_scanline=(unsigned char *) RelinquishMagickMemory(packed_scanline);
1964   buffer=(unsigned char *) RelinquishMagickMemory(buffer);
1965   (void) CloseBlob(image);
1966   return(MagickTrue);
1967 }