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 1999-2011 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 *);
 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 {
 432   MagickSizeType
 433     number_pixels;
 434
 435   register ssize_t
 436     i;
 437
 438   register unsigned char
 439     *p,
 440     *q;
 441
 442   size_t
 443     bytes_per_pixel,
 444     length,
 445     row_bytes,
 446     scanline_length,
 447     width;
 448
 449   ssize_t
 450     count,
 451     j,
 452     y;
 453
 454   unsigned char
 455     *pixels,
 456     *scanline;
 457
 458   /*
 459     Determine pixel buffer size.
 460   */
 461   if (bits_per_pixel <= 8)
 462     bytes_per_line&=0x7fff;
 463   width=image->columns;
 464   bytes_per_pixel=1;
 465   if (bits_per_pixel == 16)
 466     {
 467       bytes_per_pixel=2;
 468       width*=2;
 469     }
 470   else
 471     if (bits_per_pixel == 32)
 472       width*=image->matte ? 4 : 3;
 473   if (bytes_per_line == 0)
 474     bytes_per_line=width;
 475   row_bytes=(size_t) (image->columns | 0x8000);
 476   if (image->storage_class == DirectClass)
 477     row_bytes=(size_t) ((4*image->columns) | 0x8000);
 478   /*
 479     Allocate pixel and scanline buffer.
 480   */
 481   pixels=(unsigned char *) AcquireQuantumMemory(image->rows,row_bytes*
 482     sizeof(*pixels));
 483   if (pixels == (unsigned char *) NULL)
 484     return((unsigned char *) NULL);
 485   *extent=row_bytes*image->rows*sizeof(*pixels);
 486   (void) ResetMagickMemory(pixels,0,*extent);
 487   scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
 488   if (scanline == (unsigned char *) NULL)
 489     return((unsigned char *) NULL);
 490   if (bytes_per_line < 8)
 491     {
 492       /*
 493         Pixels are already uncompressed.
 494       */
 495       for (y=0; y < (ssize_t) image->rows; y++)
 496       {
 497         q=pixels+y*width*GetPixelChannels(image);;
 498         number_pixels=bytes_per_line;
 499         count=ReadBlob(blob,(size_t) number_pixels,scanline);
 500         (void) count;
 501         p=ExpandBuffer(scanline,&number_pixels,bits_per_pixel);
 502         if ((q+number_pixels) > (pixels+(*extent)))
 503           {
 504             (void) ThrowMagickException(&image->exception,GetMagickModule(),
 505               CorruptImageError,"UnableToUncompressImage","`%s'",
 506               image->filename);
 507             break;
 508           }
 509         (void) CopyMagickMemory(q,p,(size_t) number_pixels);
 510       }
 511       scanline=(unsigned char *) RelinquishMagickMemory(scanline);
 512       return(pixels);
 513     }
 514   /*
 515     Uncompress RLE pixels into uncompressed pixel buffer.
 516   */
 517   for (y=0; y < (ssize_t) image->rows; y++)
 518   {
 519     q=pixels+y*width;
 520     if (bytes_per_line > 200)
 521       scanline_length=ReadBlobMSBShort(blob);
 522     else
 523       scanline_length=1UL*ReadBlobByte(blob);
 524     if (scanline_length >= row_bytes)
 525       {
 526         (void) ThrowMagickException(&image->exception,GetMagickModule(),
 527           CorruptImageError,"UnableToUncompressImage","`%s'",image->filename);
 528         break;
 529       }
 530     count=ReadBlob(blob,scanline_length,scanline);
 531     for (j=0; j < (ssize_t) scanline_length; )
 532       if ((scanline[j] & 0x80) == 0)
 533         {
 534           length=(size_t) ((scanline[j] & 0xff)+1);
 535           number_pixels=length*bytes_per_pixel;
 536           p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
 537           if ((q-pixels+number_pixels) <= *extent)
 538             (void) CopyMagickMemory(q,p,(size_t) number_pixels);
 539           q+=number_pixels;
 540           j+=(ssize_t) (length*bytes_per_pixel+1);
 541         }
 542       else
 543         {
 544           length=(size_t) (((scanline[j] ^ 0xff) & 0xff)+2);
 545           number_pixels=bytes_per_pixel;
 546           p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
 547           for (i=0; i < (ssize_t) length; i++)
 548           {
 549             if ((q-pixels+number_pixels) <= *extent)
 550               (void) CopyMagickMemory(q,p,(size_t) number_pixels);
 551             q+=number_pixels;
 552           }
 553           j+=(ssize_t) bytes_per_pixel+1;
 554         }
 555   }
 556   scanline=(unsigned char *) RelinquishMagickMemory(scanline);
 557   return(pixels);
 558 }
 559 \f
 560 /*
 561 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 562 %                                                                             %
 563 %                                                                             %
 564 %                                                                             %
 565 %   E n c o d e I m a g e                                                     %
 566 %                                                                             %
 567 %                                                                             %
 568 %                                                                             %
 569 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 570 %
 571 %  EncodeImage compresses an image via Macintosh pack bits encoding
 572 %  for Macintosh PICT images.
 573 %
 574 %  The format of the EncodeImage method is:
 575 %
 576 %      size_t EncodeImage(Image *image,const unsigned char *scanline,
 577 %        const size_t bytes_per_line,unsigned char *pixels)
 578 %
 579 %  A description of each parameter follows:
 580 %
 581 %    o image: the address of a structure of type Image.
 582 %
 583 %    o scanline: A pointer to an array of characters to pack.
 584 %
 585 %    o bytes_per_line: the number of bytes in a scanline.
 586 %
 587 %    o pixels: A pointer to an array of characters where the packed
 588 %      characters are stored.
 589 %
 590 */
 591 static size_t EncodeImage(Image *image,const unsigned char *scanline,
 592   const size_t bytes_per_line,unsigned char *pixels)
 593 {
 594 #define MaxCount  128
 595 #define MaxPackbitsRunlength  128
 596
 597   register const unsigned char
 598     *p;
 599
 600   register ssize_t
 601     i;
 602
 603   register unsigned char
 604     *q;
 605
 606   size_t
 607     length;
 608
 609   ssize_t
 610     count,
 611     repeat_count,
 612     runlength;
 613
 614   unsigned char
 615     index;
 616
 617   /*
 618     Pack scanline.
 619   */
 620   assert(image != (Image *) NULL);
 621   assert(image->signature == MagickSignature);
 622   if (image->debug != MagickFalse)
 623     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 624   assert(scanline != (unsigned char *) NULL);
 625   assert(pixels != (unsigned char *) NULL);
 626   count=0;
 627   runlength=0;
 628   p=scanline+(bytes_per_line-1);
 629   q=pixels;
 630   index=(*p);
 631   for (i=(ssize_t) bytes_per_line-1; i >= 0; i--)
 632   {
 633     if (index == *p)
 634       runlength++;
 635     else
 636       {
 637         if (runlength < 3)
 638           while (runlength > 0)
 639           {
 640             *q++=(unsigned char) index;
 641             runlength--;
 642             count++;
 643             if (count == MaxCount)
 644               {
 645                 *q++=(unsigned char) (MaxCount-1);
 646                 count-=MaxCount;
 647               }
 648           }
 649         else
 650           {
 651             if (count > 0)
 652               *q++=(unsigned char) (count-1);
 653             count=0;
 654             while (runlength > 0)
 655             {
 656               repeat_count=runlength;
 657               if (repeat_count > MaxPackbitsRunlength)
 658                 repeat_count=MaxPackbitsRunlength;
 659               *q++=(unsigned char) index;
 660               *q++=(unsigned char) (257-repeat_count);
 661               runlength-=repeat_count;
 662             }
 663           }
 664         runlength=1;
 665       }
 666     index=(*p);
 667     p--;
 668   }
 669   if (runlength < 3)
 670     while (runlength > 0)
 671     {
 672       *q++=(unsigned char) index;
 673       runlength--;
 674       count++;
 675       if (count == MaxCount)
 676         {
 677           *q++=(unsigned char) (MaxCount-1);
 678           count-=MaxCount;
 679         }
 680     }
 681   else
 682     {
 683       if (count > 0)
 684         *q++=(unsigned char) (count-1);
 685       count=0;
 686       while (runlength > 0)
 687       {
 688         repeat_count=runlength;
 689         if (repeat_count > MaxPackbitsRunlength)
 690           repeat_count=MaxPackbitsRunlength;
 691         *q++=(unsigned char) index;
 692         *q++=(unsigned char) (257-repeat_count);
 693         runlength-=repeat_count;
 694       }
 695     }
 696   if (count > 0)
 697     *q++=(unsigned char) (count-1);
 698   /*
 699     Write the number of and the packed length.
 700   */
 701   length=(size_t) (q-pixels);
 702   if (bytes_per_line > 200)
 703     {
 704       (void) WriteBlobMSBShort(image,(unsigned short) length);
 705       length+=2;
 706     }
 707   else
 708     {
 709       (void) WriteBlobByte(image,(unsigned char) length);
 710       length++;
 711     }
 712   while (q != pixels)
 713   {
 714     q--;
 715     (void) WriteBlobByte(image,*q);
 716   }
 717   return(length);
 718 }
 719 \f
 720 /*
 721 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 722 %                                                                             %
 723 %                                                                             %
 724 %                                                                             %
 725 %   I s P I C T                                                               %
 726 %                                                                             %
 727 %                                                                             %
 728 %                                                                             %
 729 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 730 %
 731 %  IsPICT()() returns MagickTrue if the image format type, identified by the
 732 %  magick string, is PICT.
 733 %
 734 %  The format of the ReadPICTImage method is:
 735 %
 736 %      MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
 737 %
 738 %  A description of each parameter follows:
 739 %
 740 %    o magick: compare image format pattern against these bytes.
 741 %
 742 %    o length: Specifies the length of the magick string.
 743 %
 744 */
 745 static MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
 746 {
 747   if (length < 528)
 748     return(MagickFalse);
 749   if (memcmp(magick+522,"\000\021\002\377\014\000",6) == 0)
 750     return(MagickTrue);
 751   return(MagickFalse);
 752 }
 753 \f
 754 #if !defined(macintosh)
 755 /*
 756 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 757 %                                                                             %
 758 %                                                                             %
 759 %                                                                             %
 760 %   R e a d P I C T I m a g e                                                 %
 761 %                                                                             %
 762 %                                                                             %
 763 %                                                                             %
 764 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 765 %
 766 %  ReadPICTImage() reads an Apple Macintosh QuickDraw/PICT image file
 767 %  and returns it.  It allocates the memory necessary for the new Image
 768 %  structure and returns a pointer to the new image.
 769 %
 770 %  The format of the ReadPICTImage method is:
 771 %
 772 %      Image *ReadPICTImage(const ImageInfo *image_info,
 773 %        ExceptionInfo *exception)
 774 %
 775 %  A description of each parameter follows:
 776 %
 777 %    o image_info: the image info.
 778 %
 779 %    o exception: return any errors or warnings in this structure.
 780 %
 781 */
 782
 783 static inline size_t MagickMax(const size_t x,
 784   const size_t y)
 785 {
 786   if (x > y)
 787     return(x);
 788   return(y);
 789 }
 790
 791 static Image *ReadPICTImage(const ImageInfo *image_info,
 792   ExceptionInfo *exception)
 793 {
 794   char
 795     geometry[MaxTextExtent];
 796
 797   Image
 798     *image;
 799
 800   int
 801     c,
 802     code;
 803
 804   MagickBooleanType
 805     jpeg,
 806     status;
 807
 808   PICTRectangle
 809     frame;
 810
 811   PICTPixmap
 812     pixmap;
 813
 814   Quantum
 815     index;
 816
 817   register Quantum
 818     *q;
 819
 820   register ssize_t
 821     i,
 822     x;
 823
 824   size_t
 825     extent,
 826     length;
 827
 828   ssize_t
 829     count,
 830     flags,
 831     j,
 832     version,
 833     y;
 834
 835   StringInfo
 836     *profile;
 837
 838   /*
 839     Open image file.
 840   */
 841   assert(image_info != (const ImageInfo *) NULL);
 842   assert(image_info->signature == MagickSignature);
 843   if (image_info->debug != MagickFalse)
 844     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 845       image_info->filename);
 846   assert(exception != (ExceptionInfo *) NULL);
 847   assert(exception->signature == MagickSignature);
 848   image=AcquireImage(image_info);
 849   image->depth=8;
 850   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 851   if (status == MagickFalse)
 852     {
 853       image=DestroyImageList(image);
 854       return((Image *) NULL);
 855     }
 856   /*
 857     Read PICT header.
 858   */
 859   pixmap.bits_per_pixel=0;
 860   pixmap.component_count=0;
 861   for (i=0; i < 512; i++)
 862     (void) ReadBlobByte(image);  /* skip header */
 863   (void) ReadBlobMSBShort(image);  /* skip picture size */
 864   ReadRectangle(image,frame);
 865   while ((c=ReadBlobByte(image)) == 0) ;
 866   if (c != 0x11)
 867     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 868   version=ReadBlobByte(image);
 869   if (version == 2)
 870     {
 871       c=ReadBlobByte(image);
 872       if (c != 0xff)
 873         ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 874     }
 875   else
 876     if (version != 1)
 877       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 878   if ((frame.left < 0) || (frame.right < 0) || (frame.top < 0) ||
 879       (frame.bottom < 0) || (frame.left >= frame.right) ||
 880       (frame.top >= frame.bottom))
 881     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 882   /*
 883     Create black canvas.
 884   */
 885   flags=0;
 886   image->columns=1UL*(frame.right-frame.left);
 887   image->rows=1UL*(frame.bottom-frame.top);
 888   image->x_resolution=DefaultResolution;
 889   image->y_resolution=DefaultResolution;
 890   image->units=UndefinedResolution;
 891   /*
 892     Interpret PICT opcodes.
 893   */
 894   jpeg=MagickFalse;
 895   for (code=0; EOFBlob(image) == MagickFalse; )
 896   {
 897     if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
 898       if (image->scene >= (image_info->scene+image_info->number_scenes-1))
 899         break;
 900     if ((version == 1) || ((TellBlob(image) % 2) != 0))
 901       code=ReadBlobByte(image);
 902     if (version == 2)
 903       code=(int) ReadBlobMSBShort(image);
 904     if (code > 0xa1)
 905       {
 906         if (image->debug != MagickFalse)
 907           (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%04X:",code);
 908       }
 909     else
 910       {
 911         if (image->debug != MagickFalse)
 912           (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 913             "  %04X %s: %s",code,codes[code].name,codes[code].description);
 914         switch (code)
 915         {
 916           case 0x01:
 917           {
 918             /*
 919               Clipping rectangle.
 920             */
 921             length=ReadBlobMSBShort(image);
 922             if (length != 0x000a)
 923               {
 924                 for (i=0; i < (ssize_t) (length-2); i++)
 925                   (void) ReadBlobByte(image);
 926                 break;
 927               }
 928             ReadRectangle(image,frame);
 929             if (((frame.left & 0x8000) != 0) || ((frame.top & 0x8000) != 0))
 930               break;
 931             image->columns=1UL*(frame.right-frame.left);
 932             image->rows=1UL*(frame.bottom-frame.top);
 933             (void) SetImageBackgroundColor(image);
 934             break;
 935           }
 936           case 0x12:
 937           case 0x13:
 938           case 0x14:
 939           {
 940             ssize_t
 941               pattern;
 942
 943             size_t
 944               height,
 945               width;
 946
 947             /*
 948               Skip pattern definition.
 949             */
 950             pattern=1L*ReadBlobMSBShort(image);
 951             for (i=0; i < 8; i++)
 952               (void) ReadBlobByte(image);
 953             if (pattern == 2)
 954               {
 955                 for (i=0; i < 5; i++)
 956                   (void) ReadBlobByte(image);
 957                 break;
 958               }
 959             if (pattern != 1)
 960               ThrowReaderException(CorruptImageError,"UnknownPatternType");
 961             length=ReadBlobMSBShort(image);
 962             ReadRectangle(image,frame);
 963             ReadPixmap(pixmap);
 964             image->depth=1UL*pixmap.component_size;
 965             image->x_resolution=1.0*pixmap.horizontal_resolution;
 966             image->y_resolution=1.0*pixmap.vertical_resolution;
 967             image->units=PixelsPerInchResolution;
 968             (void) ReadBlobMSBLong(image);
 969             flags=1L*ReadBlobMSBShort(image);
 970             length=ReadBlobMSBShort(image);
 971             for (i=0; i <= (ssize_t) length; i++)
 972               (void) ReadBlobMSBLong(image);
 973             width=1UL*(frame.bottom-frame.top);
 974             height=1UL*(frame.right-frame.left);
 975             if (pixmap.bits_per_pixel <= 8)
 976               length&=0x7fff;
 977             if (pixmap.bits_per_pixel == 16)
 978               width<<=1;
 979             if (length == 0)
 980               length=width;
 981             if (length < 8)
 982               {
 983                 for (i=0; i < (ssize_t) (length*height); i++)
 984                   (void) ReadBlobByte(image);
 985               }
 986             else
 987               for (j=0; j < (int) height; j++)
 988                 if (length > 200)
 989                   for (j=0; j < (ssize_t) ReadBlobMSBShort(image); j++)
 990                     (void) ReadBlobByte(image);
 991                 else
 992                   for (j=0; j < (ssize_t) ReadBlobByte(image); j++)
 993                     (void) ReadBlobByte(image);
 994             break;
 995           }
 996           case 0x1b:
 997           {
 998             /*
 999               Initialize image background color.
1000             */
1001             image->background_color.red=(Quantum)
1002               ScaleShortToQuantum(ReadBlobMSBShort(image));
1003             image->background_color.green=(Quantum)
1004               ScaleShortToQuantum(ReadBlobMSBShort(image));
1005             image->background_color.blue=(Quantum)
1006               ScaleShortToQuantum(ReadBlobMSBShort(image));
1007             break;
1008           }
1009           case 0x70:
1010           case 0x71:
1011           case 0x72:
1012           case 0x73:
1013           case 0x74:
1014           case 0x75:
1015           case 0x76:
1016           case 0x77:
1017           {
1018             /*
1019               Skip polygon or region.
1020             */
1021             length=ReadBlobMSBShort(image);
1022             for (i=0; i < (ssize_t) (length-2); i++)
1023               (void) ReadBlobByte(image);
1024             break;
1025           }
1026           case 0x90:
1027           case 0x91:
1028           case 0x98:
1029           case 0x99:
1030           case 0x9a:
1031           case 0x9b:
1032           {
1033             Image
1034               *tile_image;
1035
1036             PICTRectangle
1037               source,
1038               destination;
1039
1040             register unsigned char
1041               *p;
1042
1043             size_t
1044               j;
1045
1046             ssize_t
1047               bytes_per_line;
1048
1049             unsigned char
1050               *pixels;
1051
1052             /*
1053               Pixmap clipped by a rectangle.
1054             */
1055             bytes_per_line=0;
1056             if ((code != 0x9a) && (code != 0x9b))
1057               bytes_per_line=1L*ReadBlobMSBShort(image);
1058             else
1059               {
1060                 (void) ReadBlobMSBShort(image);
1061                 (void) ReadBlobMSBShort(image);
1062                 (void) ReadBlobMSBShort(image);
1063               }
1064             ReadRectangle(image,frame);
1065             /*
1066               Initialize tile image.
1067             */
1068             tile_image=CloneImage(image,1UL*(frame.right-frame.left),
1069               1UL*(frame.bottom-frame.top),MagickTrue,exception);
1070             if (tile_image == (Image *) NULL)
1071               return((Image *) NULL);
1072             if ((code == 0x9a) || (code == 0x9b) ||
1073                 ((bytes_per_line & 0x8000) != 0))
1074               {
1075                 ReadPixmap(pixmap);
1076                 tile_image->depth=1UL*pixmap.component_size;
1077                 tile_image->matte=pixmap.component_count == 4 ?
1078                   MagickTrue : MagickFalse;
1079                 tile_image->x_resolution=(double) pixmap.horizontal_resolution;
1080                 tile_image->y_resolution=(double) pixmap.vertical_resolution;
1081                 tile_image->units=PixelsPerInchResolution;
1082                 if (tile_image->matte != MagickFalse)
1083                   image->matte=tile_image->matte;
1084               }
1085             if ((code != 0x9a) && (code != 0x9b))
1086               {
1087                 /*
1088                   Initialize colormap.
1089                 */
1090                 tile_image->colors=2;
1091                 if ((bytes_per_line & 0x8000) != 0)
1092                   {
1093                     (void) ReadBlobMSBLong(image);
1094                     flags=1L*ReadBlobMSBShort(image);
1095                     tile_image->colors=1UL*ReadBlobMSBShort(image)+1;
1096                   }
1097                 status=AcquireImageColormap(tile_image,tile_image->colors);
1098                 if (status == MagickFalse)
1099                   {
1100                     tile_image=DestroyImage(tile_image);
1101                     ThrowReaderException(ResourceLimitError,
1102                       "MemoryAllocationFailed");
1103                   }
1104                 if ((bytes_per_line & 0x8000) != 0)
1105                   {
1106                     for (i=0; i < (ssize_t) tile_image->colors; i++)
1107                     {
1108                       j=ReadBlobMSBShort(image) % tile_image->colors;
1109                       if ((flags & 0x8000) != 0)
1110                         j=(size_t) i;
1111                       tile_image->colormap[j].red=(Quantum)
1112                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1113                       tile_image->colormap[j].green=(Quantum)
1114                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1115                       tile_image->colormap[j].blue=(Quantum)
1116                         ScaleShortToQuantum(ReadBlobMSBShort(image));
1117                     }
1118                   }
1119                 else
1120                   {
1121                     for (i=0; i < (ssize_t) tile_image->colors; i++)
1122                     {
1123                       tile_image->colormap[i].red=(Quantum) (QuantumRange-
1124                         tile_image->colormap[i].red);
1125                       tile_image->colormap[i].green=(Quantum) (QuantumRange-
1126                         tile_image->colormap[i].green);
1127                       tile_image->colormap[i].blue=(Quantum) (QuantumRange-
1128                         tile_image->colormap[i].blue);
1129                     }
1130                   }
1131               }
1132             ReadRectangle(image,source);
1133             ReadRectangle(image,destination);
1134             (void) ReadBlobMSBShort(image);
1135             if ((code == 0x91) || (code == 0x99) || (code == 0x9b))
1136               {
1137                 /*
1138                   Skip region.
1139                 */
1140                 length=ReadBlobMSBShort(image);
1141                 for (i=0; i < (ssize_t) (length-2); i++)
1142                   (void) ReadBlobByte(image);
1143               }
1144             if ((code != 0x9a) && (code != 0x9b) &&
1145                 (bytes_per_line & 0x8000) == 0)
1146               pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1,&extent);
1147             else
1148               pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1U*
1149                 pixmap.bits_per_pixel,&extent);
1150             if (pixels == (unsigned char *) NULL)
1151               {
1152                 tile_image=DestroyImage(tile_image);
1153                 ThrowReaderException(ResourceLimitError,
1154                   "MemoryAllocationFailed");
1155               }
1156             /*
1157               Convert PICT tile image to pixel packets.
1158             */
1159             p=pixels;
1160             for (y=0; y < (ssize_t) tile_image->rows; y++)
1161             {
1162               if (p > (pixels+extent+image->columns))
1163                 ThrowReaderException(CorruptImageError,"NotEnoughPixelData");
1164               q=QueueAuthenticPixels(tile_image,0,y,tile_image->columns,1,
1165                 exception);
1166               if (q == (const Quantum *) NULL)
1167                 break;
1168               for (x=0; x < (ssize_t) tile_image->columns; x++)
1169               {
1170                 if (tile_image->storage_class == PseudoClass)
1171                   {
1172                     index=ConstrainColormapIndex(tile_image,*p);
1173                     SetPixelIndex(tile_image,index,q);
1174                     SetPixelRed(tile_image,
1175                       tile_image->colormap[(ssize_t) index].red,q);
1176                     SetPixelGreen(tile_image,
1177                       tile_image->colormap[(ssize_t) index].green,q);
1178                     SetPixelBlue(tile_image,
1179                       tile_image->colormap[(ssize_t) index].blue,q);
1180                   }
1181                 else
1182                   {
1183                     if (pixmap.bits_per_pixel == 16)
1184                       {
1185                         i=(*p++);
1186                         j=(*p);
1187                         SetPixelRed(tile_image,ScaleCharToQuantum(
1188                           (unsigned char) ((i & 0x7c) << 1)),q);
1189                         SetPixelGreen(tile_image,ScaleCharToQuantum(
1190                           (unsigned char) (((i & 0x03) << 6) |
1191                           ((j & 0xe0) >> 2))),q);
1192                         SetPixelBlue(tile_image,ScaleCharToQuantum(
1193                           (unsigned char) ((j & 0x1f) << 3)),q);
1194                       }
1195                     else
1196                       if (tile_image->matte == MagickFalse)
1197                         {
1198                           if (p > (pixels+extent+2*image->columns))
1199                             ThrowReaderException(CorruptImageError,
1200                               "NotEnoughPixelData");
1201                           SetPixelRed(tile_image,ScaleCharToQuantum(*p),q);
1202                           SetPixelGreen(tile_image,ScaleCharToQuantum(
1203                             *(p+tile_image->columns)),q);
1204                           SetPixelBlue(tile_image,ScaleCharToQuantum(
1205                             *(p+2*tile_image->columns)),q);
1206                         }
1207                       else
1208                         {
1209                           if (p > (pixels+extent+3*image->columns))
1210                             ThrowReaderException(CorruptImageError,
1211                               "NotEnoughPixelData");
1212                           SetPixelAlpha(tile_image,ScaleCharToQuantum(*p),q);
1213                           SetPixelRed(tile_image,ScaleCharToQuantum(
1214                             *(p+tile_image->columns)),q);
1215                           SetPixelGreen(tile_image,ScaleCharToQuantum(
1216                             *(p+2*tile_image->columns)),q);
1217                           SetPixelBlue(tile_image,ScaleCharToQuantum(
1218                             *(p+3*tile_image->columns)),q);
1219                         }
1220                   }
1221                 p++;
1222                 q+=GetPixelChannels(tile_image);
1223               }
1224               if (SyncAuthenticPixels(tile_image,exception) == MagickFalse)
1225                 break;
1226               if ((tile_image->storage_class == DirectClass) &&
1227                   (pixmap.bits_per_pixel != 16))
1228                 {
1229                   p+=(pixmap.component_count-1)*tile_image->columns;
1230                   if (p < pixels)
1231                     break;
1232                 }
1233               status=SetImageProgress(image,LoadImageTag,y,tile_image->rows);
1234               if (status == MagickFalse)
1235                 break;
1236             }
1237             pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1238             if (jpeg == MagickFalse)
1239               if ((code == 0x9a) || (code == 0x9b) ||
1240                   ((bytes_per_line & 0x8000) != 0))
1241                 (void) CompositeImage(image,CopyCompositeOp,tile_image,
1242                   destination.left,destination.top);
1243             tile_image=DestroyImage(tile_image);
1244             break;
1245           }
1246           case 0xa1:
1247           {
1248             unsigned char
1249               *info;
1250
1251             size_t
1252               type;
1253
1254             /*
1255               Comment.
1256             */
1257             type=ReadBlobMSBShort(image);
1258             length=ReadBlobMSBShort(image);
1259             if (length == 0)
1260               break;
1261             (void) ReadBlobMSBLong(image);
1262             length-=4;
1263             if (length == 0)
1264               break;
1265             info=(unsigned char *) AcquireQuantumMemory(length,sizeof(*info));
1266             if (info == (unsigned char *) NULL)
1267               break;
1268             count=ReadBlob(image,length,info);
1269             (void) count;
1270             switch (type)
1271             {
1272               case 0xe0:
1273               {
1274                 if (length == 0)
1275                   break;
1276                 profile=AcquireStringInfo(length);
1277                 SetStringInfoDatum(profile,info);
1278                 status=SetImageProfile(image,"icc",profile);
1279                 profile=DestroyStringInfo(profile);
1280                 if (status == MagickFalse)
1281                   ThrowReaderException(ResourceLimitError,
1282                     "MemoryAllocationFailed");
1283                 break;
1284               }
1285               case 0x1f2:
1286               {
1287                 if (length == 0)
1288                   break;
1289                 profile=AcquireStringInfo(length);
1290                 SetStringInfoDatum(profile,info);
1291                 status=SetImageProfile(image,"iptc",profile);
1292                 if (status == MagickFalse)
1293                   ThrowReaderException(ResourceLimitError,
1294                     "MemoryAllocationFailed");
1295                 profile=DestroyStringInfo(profile);
1296                 break;
1297               }
1298               default:
1299                 break;
1300             }
1301             info=(unsigned char *) RelinquishMagickMemory(info);
1302             break;
1303           }
1304           default:
1305           {
1306             /*
1307               Skip to next op code.
1308             */
1309             if (codes[code].length == -1)
1310               (void) ReadBlobMSBShort(image);
1311             else
1312               for (i=0; i < (ssize_t) codes[code].length; i++)
1313                 (void) ReadBlobByte(image);
1314           }
1315         }
1316       }
1317     if (code == 0xc00)
1318       {
1319         /*
1320           Skip header.
1321         */
1322         for (i=0; i < 24; i++)
1323           (void) ReadBlobByte(image);
1324         continue;
1325       }
1326     if (((code >= 0xb0) && (code <= 0xcf)) ||
1327         ((code >= 0x8000) && (code <= 0x80ff)))
1328       continue;
1329     if (code == 0x8200)
1330       {
1331         FILE
1332           *file;
1333
1334         Image
1335           *tile_image;
1336
1337         ImageInfo
1338           *read_info;
1339
1340         int
1341           unique_file;
1342
1343         /*
1344           Embedded JPEG.
1345         */
1346         jpeg=MagickTrue;
1347         read_info=CloneImageInfo(image_info);
1348         SetImageInfoBlob(read_info,(void *) NULL,0);
1349         file=(FILE *) NULL;
1350         unique_file=AcquireUniqueFileResource(read_info->filename);
1351         if (unique_file != -1)
1352           file=fdopen(unique_file,"wb");
1353         if ((unique_file == -1) || (file == (FILE *) NULL))
1354           {
1355             (void) CopyMagickString(image->filename,read_info->filename,
1356               MaxTextExtent);
1357             ThrowFileException(exception,FileOpenError,
1358               "UnableToCreateTemporaryFile",image->filename);
1359             image=DestroyImageList(image);
1360             return((Image *) NULL);
1361           }
1362         length=ReadBlobMSBLong(image);
1363         for (i=0; i < 6; i++)
1364           (void) ReadBlobMSBLong(image);
1365         ReadRectangle(image,frame);
1366         for (i=0; i < 122; i++)
1367           (void) ReadBlobByte(image);
1368         for (i=0; i < (ssize_t) (length-154); i++)
1369         {
1370           c=ReadBlobByte(image);
1371           (void) fputc(c,file);
1372         }
1373         (void) fclose(file);
1374         tile_image=ReadImage(read_info,exception);
1375         (void) RelinquishUniqueFileResource(read_info->filename);
1376         read_info=DestroyImageInfo(read_info);
1377         if (tile_image == (Image *) NULL)
1378           continue;
1379         (void) FormatLocaleString(geometry,MaxTextExtent,"%.20gx%.20g",
1380           (double) MagickMax(image->columns,tile_image->columns),
1381           (double) MagickMax(image->rows,tile_image->rows));
1382         (void) SetImageExtent(image,
1383           MagickMax(image->columns,tile_image->columns),
1384           MagickMax(image->rows,tile_image->rows));
1385         if (IsRGBColorspace(image->colorspace) == MagickFalse)
1386           (void) TransformImageColorspace(image,tile_image->colorspace);
1387         (void) CompositeImage(image,CopyCompositeOp,tile_image,frame.left,
1388           frame.right);
1389         image->compression=tile_image->compression;
1390         tile_image=DestroyImage(tile_image);
1391         continue;
1392       }
1393     if ((code == 0xff) || (code == 0xffff))
1394       break;
1395     if (((code >= 0xd0) && (code <= 0xfe)) ||
1396         ((code >= 0x8100) && (code <= 0xffff)))
1397       {
1398         /*
1399           Skip reserved.
1400         */
1401         length=ReadBlobMSBShort(image);
1402         for (i=0; i < (ssize_t) length; i++)
1403           (void) ReadBlobByte(image);
1404         continue;
1405       }
1406     if ((code >= 0x100) && (code <= 0x7fff))
1407       {
1408         /*
1409           Skip reserved.
1410         */
1411         length=(size_t) ((code >> 7) & 0xff);
1412         for (i=0; i < (ssize_t) length; i++)
1413           (void) ReadBlobByte(image);
1414         continue;
1415       }
1416   }
1417   (void) CloseBlob(image);
1418   return(GetFirstImageInList(image));
1419 }
1420 #endif
1421 \f
1422 /*
1423 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1424 %                                                                             %
1425 %                                                                             %
1426 %                                                                             %
1427 %   R e g i s t e r P I C T I m a g e                                         %
1428 %                                                                             %
1429 %                                                                             %
1430 %                                                                             %
1431 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1432 %
1433 %  RegisterPICTImage() adds attributes for the PICT image format to
1434 %  the list of supported formats.  The attributes include the image format
1435 %  tag, a method to read and/or write the format, whether the format
1436 %  supports the saving of more than one frame to the same file or blob,
1437 %  whether the format supports native in-memory I/O, and a brief
1438 %  description of the format.
1439 %
1440 %  The format of the RegisterPICTImage method is:
1441 %
1442 %      size_t RegisterPICTImage(void)
1443 %
1444 */
1445 ModuleExport size_t RegisterPICTImage(void)
1446 {
1447   MagickInfo
1448     *entry;
1449
1450   entry=SetMagickInfo("PCT");
1451   entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1452   entry->encoder=(EncodeImageHandler *) WritePICTImage;
1453   entry->adjoin=MagickFalse;
1454   entry->seekable_stream=MagickTrue;
1455   entry->description=ConstantString("Apple Macintosh QuickDraw/PICT");
1456   entry->magick=(IsImageFormatHandler *) IsPICT;
1457   entry->module=ConstantString("PICT");
1458   (void) RegisterMagickInfo(entry);
1459   entry=SetMagickInfo("PICT");
1460   entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1461   entry->encoder=(EncodeImageHandler *) WritePICTImage;
1462   entry->adjoin=MagickFalse;
1463   entry->seekable_stream=MagickTrue;
1464   entry->description=ConstantString("Apple Macintosh QuickDraw/PICT");
1465   entry->magick=(IsImageFormatHandler *) IsPICT;
1466   entry->module=ConstantString("PICT");
1467   (void) RegisterMagickInfo(entry);
1468   return(MagickImageCoderSignature);
1469 }
1470 \f
1471 /*
1472 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1473 %                                                                             %
1474 %                                                                             %
1475 %                                                                             %
1476 %   U n r e g i s t e r P I C T I m a g e                                     %
1477 %                                                                             %
1478 %                                                                             %
1479 %                                                                             %
1480 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1481 %
1482 %  UnregisterPICTImage() removes format registrations made by the
1483 %  PICT module from the list of supported formats.
1484 %
1485 %  The format of the UnregisterPICTImage method is:
1486 %
1487 %      UnregisterPICTImage(void)
1488 %
1489 */
1490 ModuleExport void UnregisterPICTImage(void)
1491 {
1492   (void) UnregisterMagickInfo("PCT");
1493   (void) UnregisterMagickInfo("PICT");
1494 }
1495 \f
1496 /*
1497 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1498 %                                                                             %
1499 %                                                                             %
1500 %                                                                             %
1501 %   W r i t e P I C T I m a g e                                               %
1502 %                                                                             %
1503 %                                                                             %
1504 %                                                                             %
1505 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1506 %
1507 %  WritePICTImage() writes an image to a file in the Apple Macintosh
1508 %  QuickDraw/PICT image format.
1509 %
1510 %  The format of the WritePICTImage method is:
1511 %
1512 %      MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1513 %        Image *image)
1514 %
1515 %  A description of each parameter follows.
1516 %
1517 %    o image_info: the image info.
1518 %
1519 %    o image:  The image.
1520 %
1521 */
1522 static MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1523   Image *image)
1524 {
1525 #define MaxCount  128
1526 #define PictCropRegionOp  0x01
1527 #define PictEndOfPictureOp  0xff
1528 #define PictJPEGOp  0x8200
1529 #define PictInfoOp  0x0C00
1530 #define PictInfoSize  512
1531 #define PictPixmapOp  0x9A
1532 #define PictPICTOp  0x98
1533 #define PictVersion  0x11
1534
1535   const StringInfo
1536     *profile;
1537
1538   double
1539     x_resolution,
1540     y_resolution;
1541
1542   MagickBooleanType
1543     status;
1544
1545   MagickOffsetType
1546     offset;
1547
1548   PICTPixmap
1549     pixmap;
1550
1551   PICTRectangle
1552     bounds,
1553     crop_rectangle,
1554     destination_rectangle,
1555     frame_rectangle,
1556     size_rectangle,
1557     source_rectangle;
1558
1559   register const Quantum
1560     *p;
1561
1562   register ssize_t
1563     i,
1564     x;
1565
1566   size_t
1567     bytes_per_line,
1568     count,
1569     storage_class;
1570
1571   ssize_t
1572     y;
1573
1574   unsigned char
1575     *buffer,
1576     *packed_scanline,
1577     *scanline;
1578
1579   unsigned short
1580     base_address,
1581     row_bytes,
1582     transfer_mode;
1583
1584   /*
1585     Open output image file.
1586   */
1587   assert(image_info != (const ImageInfo *) NULL);
1588   assert(image_info->signature == MagickSignature);
1589   assert(image != (Image *) NULL);
1590   assert(image->signature == MagickSignature);
1591   if (image->debug != MagickFalse)
1592     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1593   if ((image->columns > 65535L) || (image->rows > 65535L))
1594     ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1595   status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
1596   if (status == MagickFalse)
1597     return(status);
1598   if (IsRGBColorspace(image->colorspace) == MagickFalse)
1599     (void) TransformImageColorspace(image,RGBColorspace);
1600   /*
1601     Initialize image info.
1602   */
1603   size_rectangle.top=0;
1604   size_rectangle.left=0;
1605   size_rectangle.bottom=(short) image->rows;
1606   size_rectangle.right=(short) image->columns;
1607   frame_rectangle=size_rectangle;
1608   crop_rectangle=size_rectangle;
1609   source_rectangle=size_rectangle;
1610   destination_rectangle=size_rectangle;
1611   base_address=0xff;
1612   row_bytes=(unsigned short) (image->columns | 0x8000);
1613   bounds.top=0;
1614   bounds.left=0;
1615   bounds.bottom=(short) image->rows;
1616   bounds.right=(short) image->columns;
1617   pixmap.version=0;
1618   pixmap.pack_type=0;
1619   pixmap.pack_size=0;
1620   pixmap.pixel_type=0;
1621   pixmap.bits_per_pixel=8;
1622   pixmap.component_count=1;
1623   pixmap.component_size=8;
1624   pixmap.plane_bytes=0;
1625   pixmap.table=0;
1626   pixmap.reserved=0;
1627   transfer_mode=0;
1628   x_resolution=image->x_resolution != 0.0 ? image->x_resolution :
1629     DefaultResolution;
1630   y_resolution=image->y_resolution != 0.0 ? image->y_resolution :
1631     DefaultResolution;
1632   storage_class=image->storage_class;
1633   if (image_info->compression == JPEGCompression)
1634     storage_class=DirectClass;
1635   if ((storage_class == DirectClass) || (image->matte != MagickFalse))
1636     {
1637       pixmap.component_count=image->matte ? 4 : 3;
1638       pixmap.pixel_type=16;
1639       pixmap.bits_per_pixel=32;
1640       pixmap.pack_type=0x04;
1641       transfer_mode=0x40;
1642       row_bytes=(unsigned short) ((4*image->columns) | 0x8000);
1643     }
1644   /*
1645     Allocate memory.
1646   */
1647   bytes_per_line=image->columns;
1648   if ((storage_class == DirectClass) || (image->matte != MagickFalse))
1649     bytes_per_line*=image->matte ? 4 : 3;
1650   buffer=(unsigned char *) AcquireQuantumMemory(PictInfoSize,sizeof(*buffer));
1651   packed_scanline=(unsigned char *) AcquireQuantumMemory((size_t)
1652    (row_bytes+MaxCount),sizeof(*packed_scanline));
1653   scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
1654   if ((buffer == (unsigned char *) NULL) ||
1655       (packed_scanline == (unsigned char *) NULL) ||
1656       (scanline == (unsigned char *) NULL))
1657     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1658   (void) ResetMagickMemory(scanline,0,row_bytes);
1659   (void) ResetMagickMemory(packed_scanline,0,(size_t) (row_bytes+MaxCount));
1660   /*
1661     Write header, header size, size bounding box, version, and reserved.
1662   */
1663   (void) ResetMagickMemory(buffer,0,PictInfoSize);
1664   (void) WriteBlob(image,PictInfoSize,buffer);
1665   (void) WriteBlobMSBShort(image,0);
1666   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.top);
1667   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.left);
1668   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.bottom);
1669   (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.right);
1670   (void) WriteBlobMSBShort(image,PictVersion);
1671   (void) WriteBlobMSBShort(image,0x02ff);  /* version #2 */
1672   (void) WriteBlobMSBShort(image,PictInfoOp);
1673   (void) WriteBlobMSBLong(image,0xFFFE0000UL);
1674   /*
1675     Write full size of the file, resolution, frame bounding box, and reserved.
1676   */
1677   (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1678   (void) WriteBlobMSBShort(image,0x0000);
1679   (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1680   (void) WriteBlobMSBShort(image,0x0000);
1681   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.top);
1682   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.left);
1683   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.bottom);
1684   (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.right);
1685   (void) WriteBlobMSBLong(image,0x00000000L);
1686   profile=GetImageProfile(image,"iptc");
1687   if (profile != (StringInfo *) NULL)
1688     {
1689       (void) WriteBlobMSBShort(image,0xa1);
1690       (void) WriteBlobMSBShort(image,0x1f2);
1691       (void) WriteBlobMSBShort(image,(unsigned short)
1692         (GetStringInfoLength(profile)+4));
1693       (void) WriteBlobString(image,"8BIM");
1694       (void) WriteBlob(image,GetStringInfoLength(profile),
1695         GetStringInfoDatum(profile));
1696     }
1697   profile=GetImageProfile(image,"icc");
1698   if (profile != (StringInfo *) NULL)
1699     {
1700       (void) WriteBlobMSBShort(image,0xa1);
1701       (void) WriteBlobMSBShort(image,0xe0);
1702       (void) WriteBlobMSBShort(image,(unsigned short)
1703         (GetStringInfoLength(profile)+4));
1704       (void) WriteBlobMSBLong(image,0x00000000UL);
1705       (void) WriteBlob(image,GetStringInfoLength(profile),
1706         GetStringInfoDatum(profile));
1707       (void) WriteBlobMSBShort(image,0xa1);
1708       (void) WriteBlobMSBShort(image,0xe0);
1709       (void) WriteBlobMSBShort(image,4);
1710       (void) WriteBlobMSBLong(image,0x00000002UL);
1711     }
1712   /*
1713     Write crop region opcode and crop bounding box.
1714   */
1715   (void) WriteBlobMSBShort(image,PictCropRegionOp);
1716   (void) WriteBlobMSBShort(image,0xa);
1717   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.top);
1718   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.left);
1719   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.bottom);
1720   (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.right);
1721   if (image_info->compression == JPEGCompression)
1722     {
1723       Image
1724         *jpeg_image;
1725
1726       ImageInfo
1727         *jpeg_info;
1728
1729       size_t
1730         length;
1731
1732       unsigned char
1733         *blob;
1734
1735       jpeg_image=CloneImage(image,0,0,MagickTrue,&image->exception);
1736       if (jpeg_image == (Image *) NULL)
1737         {
1738           (void) CloseBlob(image);
1739           return(MagickFalse);
1740         }
1741       jpeg_info=CloneImageInfo(image_info);
1742       (void) CopyMagickString(jpeg_info->magick,"JPEG",MaxTextExtent);
1743       length=0;
1744       blob=(unsigned char *) ImageToBlob(jpeg_info,jpeg_image,&length,
1745         &image->exception);
1746       jpeg_info=DestroyImageInfo(jpeg_info);
1747       if (blob == (unsigned char *) NULL)
1748         return(MagickFalse);
1749       jpeg_image=DestroyImage(jpeg_image);
1750       (void) WriteBlobMSBShort(image,PictJPEGOp);
1751       (void) WriteBlobMSBLong(image,(unsigned int) length+154);
1752       (void) WriteBlobMSBShort(image,0x0000);
1753       (void) WriteBlobMSBLong(image,0x00010000UL);
1754       (void) WriteBlobMSBLong(image,0x00000000UL);
1755       (void) WriteBlobMSBLong(image,0x00000000UL);
1756       (void) WriteBlobMSBLong(image,0x00000000UL);
1757       (void) WriteBlobMSBLong(image,0x00010000UL);
1758       (void) WriteBlobMSBLong(image,0x00000000UL);
1759       (void) WriteBlobMSBLong(image,0x00000000UL);
1760       (void) WriteBlobMSBLong(image,0x00000000UL);
1761       (void) WriteBlobMSBLong(image,0x40000000UL);
1762       (void) WriteBlobMSBLong(image,0x00000000UL);
1763       (void) WriteBlobMSBLong(image,0x00000000UL);
1764       (void) WriteBlobMSBLong(image,0x00000000UL);
1765       (void) WriteBlobMSBLong(image,0x00400000UL);
1766       (void) WriteBlobMSBShort(image,0x0000);
1767       (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1768       (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1769       (void) WriteBlobMSBShort(image,0x0000);
1770       (void) WriteBlobMSBShort(image,768);
1771       (void) WriteBlobMSBShort(image,0x0000);
1772       (void) WriteBlobMSBLong(image,0x00000000UL);
1773       (void) WriteBlobMSBLong(image,0x00566A70UL);
1774       (void) WriteBlobMSBLong(image,0x65670000UL);
1775       (void) WriteBlobMSBLong(image,0x00000000UL);
1776       (void) WriteBlobMSBLong(image,0x00000001UL);
1777       (void) WriteBlobMSBLong(image,0x00016170UL);
1778       (void) WriteBlobMSBLong(image,0x706C0000UL);
1779       (void) WriteBlobMSBLong(image,0x00000000UL);
1780       (void) WriteBlobMSBShort(image,768);
1781       (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1782       (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1783       (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1784       (void) WriteBlobMSBShort(image,0x0000);
1785       (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1786       (void) WriteBlobMSBLong(image,0x00000000UL);
1787       (void) WriteBlobMSBLong(image,0x87AC0001UL);
1788       (void) WriteBlobMSBLong(image,0x0B466F74UL);
1789       (void) WriteBlobMSBLong(image,0x6F202D20UL);
1790       (void) WriteBlobMSBLong(image,0x4A504547UL);
1791       (void) WriteBlobMSBLong(image,0x00000000UL);
1792       (void) WriteBlobMSBLong(image,0x00000000UL);
1793       (void) WriteBlobMSBLong(image,0x00000000UL);
1794       (void) WriteBlobMSBLong(image,0x00000000UL);
1795       (void) WriteBlobMSBLong(image,0x00000000UL);
1796       (void) WriteBlobMSBLong(image,0x0018FFFFUL);
1797       (void) WriteBlob(image,length,blob);
1798       if ((length & 0x01) != 0)
1799         (void) WriteBlobByte(image,'\0');
1800       blob=(unsigned char *) RelinquishMagickMemory(blob);
1801     }
1802   /*
1803     Write picture opcode, row bytes, and picture bounding box, and version.
1804   */
1805   if (storage_class == PseudoClass)
1806     (void) WriteBlobMSBShort(image,PictPICTOp);
1807   else
1808     {
1809       (void) WriteBlobMSBShort(image,PictPixmapOp);
1810       (void) WriteBlobMSBLong(image,(size_t) base_address);
1811     }
1812   (void) WriteBlobMSBShort(image,(unsigned short) (row_bytes | 0x8000));
1813   (void) WriteBlobMSBShort(image,(unsigned short) bounds.top);
1814   (void) WriteBlobMSBShort(image,(unsigned short) bounds.left);
1815   (void) WriteBlobMSBShort(image,(unsigned short) bounds.bottom);
1816   (void) WriteBlobMSBShort(image,(unsigned short) bounds.right);
1817   /*
1818     Write pack type, pack size, resolution, pixel type, and pixel size.
1819   */
1820   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.version);
1821   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pack_type);
1822   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.pack_size);
1823   (void) WriteBlobMSBShort(image,(unsigned short) (x_resolution+0.5));
1824   (void) WriteBlobMSBShort(image,0x0000);
1825   (void) WriteBlobMSBShort(image,(unsigned short) (y_resolution+0.5));
1826   (void) WriteBlobMSBShort(image,0x0000);
1827   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pixel_type);
1828   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.bits_per_pixel);
1829   /*
1830     Write component count, size, plane bytes, table size, and reserved.
1831   */
1832   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_count);
1833   (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_size);
1834   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.plane_bytes);
1835   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.table);
1836   (void) WriteBlobMSBLong(image,(unsigned int) pixmap.reserved);
1837   if (storage_class == PseudoClass)
1838     {
1839       /*
1840         Write image colormap.
1841       */
1842       (void) WriteBlobMSBLong(image,0x00000000L);  /* color seed */
1843       (void) WriteBlobMSBShort(image,0L);  /* color flags */
1844       (void) WriteBlobMSBShort(image,(unsigned short) (image->colors-1));
1845       for (i=0; i < (ssize_t) image->colors; i++)
1846       {
1847         (void) WriteBlobMSBShort(image,(unsigned short) i);
1848         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1849           image->colormap[i].red));
1850         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1851           image->colormap[i].green));
1852         (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1853           image->colormap[i].blue));
1854       }
1855     }
1856   /*
1857     Write source and destination rectangle.
1858   */
1859   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.top);
1860   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.left);
1861   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.bottom);
1862   (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.right);
1863   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.top);
1864   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.left);
1865   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.bottom);
1866   (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.right);
1867   (void) WriteBlobMSBShort(image,(unsigned short) transfer_mode);
1868   /*
1869     Write picture data.
1870   */
1871   count=0;
1872   if ((storage_class == PseudoClass) && (image->matte == MagickFalse))
1873     for (y=0; y < (ssize_t) image->rows; y++)
1874     {
1875       p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
1876       if (p == (const Quantum *) NULL)
1877         break;
1878       for (x=0; x < (ssize_t) image->columns; x++)
1879       {
1880         scanline[x]=(unsigned char) GetPixelIndex(image,p);
1881         p+=GetPixelChannels(image);
1882       }
1883       count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1884         packed_scanline);
1885       if (image->previous == (Image *) NULL)
1886         {
1887           status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1888             image->rows);
1889           if (status == MagickFalse)
1890             break;
1891         }
1892     }
1893   else
1894     if (image_info->compression == JPEGCompression)
1895       {
1896         (void) ResetMagickMemory(scanline,0,row_bytes);
1897         for (y=0; y < (ssize_t) image->rows; y++)
1898           count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1899             packed_scanline);
1900       }
1901     else
1902       {
1903         register unsigned char
1904           *blue,
1905           *green,
1906           *opacity,
1907           *red;
1908
1909         red=scanline;
1910         green=scanline+image->columns;
1911         blue=scanline+2*image->columns;
1912         opacity=scanline+3*image->columns;
1913         for (y=0; y < (ssize_t) image->rows; y++)
1914         {
1915           p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
1916           if (p == (const Quantum *) NULL)
1917             break;
1918           red=scanline;
1919           green=scanline+image->columns;
1920           blue=scanline+2*image->columns;
1921           if (image->matte != MagickFalse)
1922             {
1923               opacity=scanline;
1924               red=scanline+image->columns;
1925               green=scanline+2*image->columns;
1926               blue=scanline+3*image->columns;
1927             }
1928           for (x=0; x < (ssize_t) image->columns; x++)
1929           {
1930             *red++=ScaleQuantumToChar(GetPixelRed(image,p));
1931             *green++=ScaleQuantumToChar(GetPixelGreen(image,p));
1932             *blue++=ScaleQuantumToChar(GetPixelBlue(image,p));
1933             if (image->matte != MagickFalse)
1934               *opacity++=ScaleQuantumToChar((Quantum) (GetPixelAlpha(image,p)));
1935             p+=GetPixelChannels(image);
1936           }
1937           count+=EncodeImage(image,scanline,bytes_per_line & 0x7FFF,
1938             packed_scanline);
1939           if (image->previous == (Image *) NULL)
1940             {
1941               status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1942                 image->rows);
1943               if (status == MagickFalse)
1944                 break;
1945             }
1946         }
1947       }
1948   if ((count & 0x01) != 0)
1949     (void) WriteBlobByte(image,'\0');
1950   (void) WriteBlobMSBShort(image,PictEndOfPictureOp);
1951   offset=TellBlob(image);
1952   offset=SeekBlob(image,512,SEEK_SET);
1953   (void) WriteBlobMSBShort(image,(unsigned short) offset);
1954   scanline=(unsigned char *) RelinquishMagickMemory(scanline);
1955   packed_scanline=(unsigned char *) RelinquishMagickMemory(packed_scanline);
1956   buffer=(unsigned char *) RelinquishMagickMemory(buffer);
1957   (void) CloseBlob(image);
1958   return(MagickTrue);
1959 }