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 % Cristy %
17 % July 1992 %
18 % %
19 % %
20 % Copyright 1999-2016 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
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
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 ((EOFBlob(image) != MagickFalse) || (pixmap.bits_per_pixel <= 0) || \
93 (pixmap.bits_per_pixel > 32) || (pixmap.component_count <= 0) || \
94 (pixmap.component_count > 4) || (pixmap.component_size <= 0)) \
95 ThrowReaderException(CorruptImageError,"ImproperImageHeader"); \
96 }
97
98 typedef struct _PICTCode
99 {
100 const char
101 *name;
102
103 ssize_t
104 length;
105
106 const char
107 *description;
108 } PICTCode;
109
110 typedef struct _PICTPixmap
111 {
112 short
113 version,
114 pack_type;
115
116 size_t
117 pack_size,
118 horizontal_resolution,
119 vertical_resolution;
120
121 short
122 pixel_type,
123 bits_per_pixel,
124 component_count,
125 component_size;
126
127 size_t
128 plane_bytes,
129 table,
130 reserved;
131 } PICTPixmap;
132
133 typedef struct _PICTRectangle
134 {
135 short
136 top,
137 left,
138 bottom,
139 right;
140 } PICTRectangle;
141
142 static const PICTCode
143 codes[] =
144 {
145 /* 0x00 */ { "NOP", 0, "nop" },
146 /* 0x01 */ { "Clip", 0, "clip" },
147 /* 0x02 */ { "BkPat", 8, "background pattern" },
148 /* 0x03 */ { "TxFont", 2, "text font (word)" },
149 /* 0x04 */ { "TxFace", 1, "text face (byte)" },
150 /* 0x05 */ { "TxMode", 2, "text mode (word)" },
151 /* 0x06 */ { "SpExtra", 4, "space extra (fixed point)" },
152 /* 0x07 */ { "PnSize", 4, "pen size (point)" },
153 /* 0x08 */ { "PnMode", 2, "pen mode (word)" },
154 /* 0x09 */ { "PnPat", 8, "pen pattern" },
155 /* 0x0a */ { "FillPat", 8, "fill pattern" },
156 /* 0x0b */ { "OvSize", 4, "oval size (point)" },
157 /* 0x0c */ { "Origin", 4, "dh, dv (word)" },
158 /* 0x0d */ { "TxSize", 2, "text size (word)" },
159 /* 0x0e */ { "FgColor", 4, "foreground color (ssize_tword)" },
160 /* 0x0f */ { "BkColor", 4, "background color (ssize_tword)" },
161 /* 0x10 */ { "TxRatio", 8, "numerator (point), denominator (point)" },
162 /* 0x11 */ { "Version", 1, "version (byte)" },
163 /* 0x12 */ { "BkPixPat", 0, "color background pattern" },
164 /* 0x13 */ { "PnPixPat", 0, "color pen pattern" },
165 /* 0x14 */ { "FillPixPat", 0, "color fill pattern" },
166 /* 0x15 */ { "PnLocHFrac", 2, "fractional pen position" },
167 /* 0x16 */ { "ChExtra", 2, "extra for each character" },
168 /* 0x17 */ { "reserved", 0, "reserved for Apple use" },
169 /* 0x18 */ { "reserved", 0, "reserved for Apple use" },
170 /* 0x19 */ { "reserved", 0, "reserved for Apple use" },
171 /* 0x1a */ { "RGBFgCol", 6, "RGB foreColor" },
172 /* 0x1b */ { "RGBBkCol", 6, "RGB backColor" },
173 /* 0x1c */ { "HiliteMode", 0, "hilite mode flag" },
174 /* 0x1d */ { "HiliteColor", 6, "RGB hilite color" },
175 /* 0x1e */ { "DefHilite", 0, "Use default hilite color" },
176 /* 0x1f */ { "OpColor", 6, "RGB OpColor for arithmetic modes" },
177 /* 0x20 */ { "Line", 8, "pnLoc (point), newPt (point)" },
178 /* 0x21 */ { "LineFrom", 4, "newPt (point)" },
179 /* 0x22 */ { "ShortLine", 6, "pnLoc (point, dh, dv (-128 .. 127))" },
180 /* 0x23 */ { "ShortLineFrom", 2, "dh, dv (-128 .. 127)" },
181 /* 0x24 */ { "reserved", -1, "reserved for Apple use" },
182 /* 0x25 */ { "reserved", -1, "reserved for Apple use" },
183 /* 0x26 */ { "reserved", -1, "reserved for Apple use" },
184 /* 0x27 */ { "reserved", -1, "reserved for Apple use" },
185 /* 0x28 */ { "LongText", 0, "txLoc (point), count (0..255), text" },
186 /* 0x29 */ { "DHText", 0, "dh (0..255), count (0..255), text" },
187 /* 0x2a */ { "DVText", 0, "dv (0..255), count (0..255), text" },
188 /* 0x2b */ { "DHDVText", 0, "dh, dv (0..255), count (0..255), text" },
189 /* 0x2c */ { "reserved", -1, "reserved for Apple use" },
190 /* 0x2d */ { "reserved", -1, "reserved for Apple use" },
191 /* 0x2e */ { "reserved", -1, "reserved for Apple use" },
192 /* 0x2f */ { "reserved", -1, "reserved for Apple use" },
193 /* 0x30 */ { "frameRect", 8, "rect" },
194 /* 0x31 */ { "paintRect", 8, "rect" },
195 /* 0x32 */ { "eraseRect", 8, "rect" },
196 /* 0x33 */ { "invertRect", 8, "rect" },
197 /* 0x34 */ { "fillRect", 8, "rect" },
198 /* 0x35 */ { "reserved", 8, "reserved for Apple use" },
199 /* 0x36 */ { "reserved", 8, "reserved for Apple use" },
200 /* 0x37 */ { "reserved", 8, "reserved for Apple use" },
201 /* 0x38 */ { "frameSameRect", 0, "rect" },
202 /* 0x39 */ { "paintSameRect", 0, "rect" },
203 /* 0x3a */ { "eraseSameRect", 0, "rect" },
204 /* 0x3b */ { "invertSameRect", 0, "rect" },
205 /* 0x3c */ { "fillSameRect", 0, "rect" },
206 /* 0x3d */ { "reserved", 0, "reserved for Apple use" },
207 /* 0x3e */ { "reserved", 0, "reserved for Apple use" },
208 /* 0x3f */ { "reserved", 0, "reserved for Apple use" },
209 /* 0x40 */ { "frameRRect", 8, "rect" },
210 /* 0x41 */ { "paintRRect", 8, "rect" },
211 /* 0x42 */ { "eraseRRect", 8, "rect" },
212 /* 0x43 */ { "invertRRect", 8, "rect" },
213 /* 0x44 */ { "fillRRrect", 8, "rect" },
214 /* 0x45 */ { "reserved", 8, "reserved for Apple use" },
215 /* 0x46 */ { "reserved", 8, "reserved for Apple use" },
216 /* 0x47 */ { "reserved", 8, "reserved for Apple use" },
217 /* 0x48 */ { "frameSameRRect", 0, "rect" },
218 /* 0x49 */ { "paintSameRRect", 0, "rect" },
219 /* 0x4a */ { "eraseSameRRect", 0, "rect" },
220 /* 0x4b */ { "invertSameRRect", 0, "rect" },
221 /* 0x4c */ { "fillSameRRect", 0, "rect" },
222 /* 0x4d */ { "reserved", 0, "reserved for Apple use" },
223 /* 0x4e */ { "reserved", 0, "reserved for Apple use" },
224 /* 0x4f */ { "reserved", 0, "reserved for Apple use" },
225 /* 0x50 */ { "frameOval", 8, "rect" },
226 /* 0x51 */ { "paintOval", 8, "rect" },
227 /* 0x52 */ { "eraseOval", 8, "rect" },
228 /* 0x53 */ { "invertOval", 8, "rect" },
229 /* 0x54 */ { "fillOval", 8, "rect" },
230 /* 0x55 */ { "reserved", 8, "reserved for Apple use" },
231 /* 0x56 */ { "reserved", 8, "reserved for Apple use" },
232 /* 0x57 */ { "reserved", 8, "reserved for Apple use" },
233 /* 0x58 */ { "frameSameOval", 0, "rect" },
234 /* 0x59 */ { "paintSameOval", 0, "rect" },
235 /* 0x5a */ { "eraseSameOval", 0, "rect" },
236 /* 0x5b */ { "invertSameOval", 0, "rect" },
237 /* 0x5c */ { "fillSameOval", 0, "rect" },
238 /* 0x5d */ { "reserved", 0, "reserved for Apple use" },
239 /* 0x5e */ { "reserved", 0, "reserved for Apple use" },
240 /* 0x5f */ { "reserved", 0, "reserved for Apple use" },
241 /* 0x60 */ { "frameArc", 12, "rect, startAngle, arcAngle" },
242 /* 0x61 */ { "paintArc", 12, "rect, startAngle, arcAngle" },
243 /* 0x62 */ { "eraseArc", 12, "rect, startAngle, arcAngle" },
244 /* 0x63 */ { "invertArc", 12, "rect, startAngle, arcAngle" },
245 /* 0x64 */ { "fillArc", 12, "rect, startAngle, arcAngle" },
246 /* 0x65 */ { "reserved", 12, "reserved for Apple use" },
247 /* 0x66 */ { "reserved", 12, "reserved for Apple use" },
248 /* 0x67 */ { "reserved", 12, "reserved for Apple use" },
249 /* 0x68 */ { "frameSameArc", 4, "rect, startAngle, arcAngle" },
250 /* 0x69 */ { "paintSameArc", 4, "rect, startAngle, arcAngle" },
251 /* 0x6a */ { "eraseSameArc", 4, "rect, startAngle, arcAngle" },
252 /* 0x6b */ { "invertSameArc", 4, "rect, startAngle, arcAngle" },
253 /* 0x6c */ { "fillSameArc", 4, "rect, startAngle, arcAngle" },
254 /* 0x6d */ { "reserved", 4, "reserved for Apple use" },
255 /* 0x6e */ { "reserved", 4, "reserved for Apple use" },
256 /* 0x6f */ { "reserved", 4, "reserved for Apple use" },
257 /* 0x70 */ { "framePoly", 0, "poly" },
258 /* 0x71 */ { "paintPoly", 0, "poly" },
259 /* 0x72 */ { "erasePoly", 0, "poly" },
260 /* 0x73 */ { "invertPoly", 0, "poly" },
261 /* 0x74 */ { "fillPoly", 0, "poly" },
262 /* 0x75 */ { "reserved", 0, "reserved for Apple use" },
263 /* 0x76 */ { "reserved", 0, "reserved for Apple use" },
264 /* 0x77 */ { "reserved", 0, "reserved for Apple use" },
265 /* 0x78 */ { "frameSamePoly", 0, "poly (NYI)" },
266 /* 0x79 */ { "paintSamePoly", 0, "poly (NYI)" },
267 /* 0x7a */ { "eraseSamePoly", 0, "poly (NYI)" },
268 /* 0x7b */ { "invertSamePoly", 0, "poly (NYI)" },
269 /* 0x7c */ { "fillSamePoly", 0, "poly (NYI)" },
270 /* 0x7d */ { "reserved", 0, "reserved for Apple use" },
271 /* 0x7e */ { "reserved", 0, "reserved for Apple use" },
272 /* 0x7f */ { "reserved", 0, "reserved for Apple use" },
273 /* 0x80 */ { "frameRgn", 0, "region" },
274 /* 0x81 */ { "paintRgn", 0, "region" },
275 /* 0x82 */ { "eraseRgn", 0, "region" },
276 /* 0x83 */ { "invertRgn", 0, "region" },
277 /* 0x84 */ { "fillRgn", 0, "region" },
278 /* 0x85 */ { "reserved", 0, "reserved for Apple use" },
279 /* 0x86 */ { "reserved", 0, "reserved for Apple use" },
280 /* 0x87 */ { "reserved", 0, "reserved for Apple use" },
281 /* 0x88 */ { "frameSameRgn", 0, "region (NYI)" },
282 /* 0x89 */ { "paintSameRgn", 0, "region (NYI)" },
283 /* 0x8a */ { "eraseSameRgn", 0, "region (NYI)" },
284 /* 0x8b */ { "invertSameRgn", 0, "region (NYI)" },
285 /* 0x8c */ { "fillSameRgn", 0, "region (NYI)" },
286 /* 0x8d */ { "reserved", 0, "reserved for Apple use" },
287 /* 0x8e */ { "reserved", 0, "reserved for Apple use" },
288 /* 0x8f */ { "reserved", 0, "reserved for Apple use" },
289 /* 0x90 */ { "BitsRect", 0, "copybits, rect clipped" },
290 /* 0x91 */ { "BitsRgn", 0, "copybits, rgn clipped" },
291 /* 0x92 */ { "reserved", -1, "reserved for Apple use" },
292 /* 0x93 */ { "reserved", -1, "reserved for Apple use" },
293 /* 0x94 */ { "reserved", -1, "reserved for Apple use" },
294 /* 0x95 */ { "reserved", -1, "reserved for Apple use" },
295 /* 0x96 */ { "reserved", -1, "reserved for Apple use" },
296 /* 0x97 */ { "reserved", -1, "reserved for Apple use" },
297 /* 0x98 */ { "PackBitsRect", 0, "packed copybits, rect clipped" },
298 /* 0x99 */ { "PackBitsRgn", 0, "packed copybits, rgn clipped" },
299 /* 0x9a */ { "DirectBitsRect", 0, "PixMap, srcRect, dstRect, mode, PixData" },
300 /* 0x9b */ { "DirectBitsRgn", 0, "PixMap, srcRect, dstRect, mode, maskRgn, PixData" },
301 /* 0x9c */ { "reserved", -1, "reserved for Apple use" },
302 /* 0x9d */ { "reserved", -1, "reserved for Apple use" },
303 /* 0x9e */ { "reserved", -1, "reserved for Apple use" },
304 /* 0x9f */ { "reserved", -1, "reserved for Apple use" },
305 /* 0xa0 */ { "ShortComment", 2, "kind (word)" },
306 /* 0xa1 */ { "LongComment", 0, "kind (word), size (word), data" }
307 };
308
309 /*
310 Forward declarations.
311 */
312 static MagickBooleanType
313 WritePICTImage(const ImageInfo *,Image *,ExceptionInfo *);
314
315 /*
316 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
317 % %
318 % %
319 % %
320 % D e c o d e I m a g e %
321 % %
322 % %
323 % %
324 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
325 %
326 % DecodeImage decompresses an image via Macintosh pack bits decoding for
327 % Macintosh PICT images.
328 %
329 % The format of the DecodeImage method is:
330 %
331 % unsigned char *DecodeImage(Image *blob,Image *image,
332 % size_t bytes_per_line,const int bits_per_pixel,
333 % unsigned size_t extent)
334 %
335 % A description of each parameter follows:
336 %
337 % o image_info: the image info.
338 %
339 % o blob,image: the address of a structure of type Image.
340 %
341 % o bytes_per_line: This integer identifies the number of bytes in a
342 % scanline.
343 %
344 % o bits_per_pixel: the number of bits in a pixel.
345 %
346 % o extent: the number of pixels allocated.
347 %
348 */
349
ExpandBuffer(unsigned char * pixels,MagickSizeType * bytes_per_line,const unsigned int bits_per_pixel)350 static unsigned char *ExpandBuffer(unsigned char *pixels,
351 MagickSizeType *bytes_per_line,const unsigned int bits_per_pixel)
352 {
353 register ssize_t
354 i;
355
356 register unsigned char
357 *p,
358 *q;
359
360 static unsigned char
361 scanline[8*256];
362
363 p=pixels;
364 q=scanline;
365 switch (bits_per_pixel)
366 {
367 case 8:
368 case 16:
369 case 32:
370 return(pixels);
371 case 4:
372 {
373 for (i=0; i < (ssize_t) *bytes_per_line; i++)
374 {
375 *q++=(*p >> 4) & 0xff;
376 *q++=(*p & 15);
377 p++;
378 }
379 *bytes_per_line*=2;
380 break;
381 }
382 case 2:
383 {
384 for (i=0; i < (ssize_t) *bytes_per_line; i++)
385 {
386 *q++=(*p >> 6) & 0x03;
387 *q++=(*p >> 4) & 0x03;
388 *q++=(*p >> 2) & 0x03;
389 *q++=(*p & 3);
390 p++;
391 }
392 *bytes_per_line*=4;
393 break;
394 }
395 case 1:
396 {
397 for (i=0; i < (ssize_t) *bytes_per_line; i++)
398 {
399 *q++=(*p >> 7) & 0x01;
400 *q++=(*p >> 6) & 0x01;
401 *q++=(*p >> 5) & 0x01;
402 *q++=(*p >> 4) & 0x01;
403 *q++=(*p >> 3) & 0x01;
404 *q++=(*p >> 2) & 0x01;
405 *q++=(*p >> 1) & 0x01;
406 *q++=(*p & 0x01);
407 p++;
408 }
409 *bytes_per_line*=8;
410 break;
411 }
412 default:
413 break;
414 }
415 return(scanline);
416 }
417
DecodeImage(Image * blob,Image * image,size_t bytes_per_line,const unsigned int bits_per_pixel,size_t * extent,ExceptionInfo * exception)418 static unsigned char *DecodeImage(Image *blob,Image *image,
419 size_t bytes_per_line,const unsigned int bits_per_pixel,size_t *extent,
420 ExceptionInfo *exception)
421 {
422 MagickSizeType
423 number_pixels;
424
425 register ssize_t
426 i;
427
428 register unsigned char
429 *p,
430 *q;
431
432 size_t
433 bytes_per_pixel,
434 length,
435 row_bytes,
436 scanline_length,
437 width;
438
439 ssize_t
440 count,
441 j,
442 y;
443
444 unsigned char
445 *pixels,
446 *scanline;
447
448 /*
449 Determine pixel buffer size.
450 */
451 if (bits_per_pixel <= 8)
452 bytes_per_line&=0x7fff;
453 width=image->columns;
454 bytes_per_pixel=1;
455 if (bits_per_pixel == 16)
456 {
457 bytes_per_pixel=2;
458 width*=2;
459 }
460 else
461 if (bits_per_pixel == 32)
462 width*=image->alpha_trait ? 4 : 3;
463 if (bytes_per_line == 0)
464 bytes_per_line=width;
465 row_bytes=(size_t) (image->columns | 0x8000);
466 if (image->storage_class == DirectClass)
467 row_bytes=(size_t) ((4*image->columns) | 0x8000);
468 /*
469 Allocate pixel and scanline buffer.
470 */
471 pixels=(unsigned char *) AcquireQuantumMemory(image->rows,row_bytes*
472 sizeof(*pixels));
473 if (pixels == (unsigned char *) NULL)
474 return((unsigned char *) NULL);
475 *extent=row_bytes*image->rows*sizeof(*pixels);
476 (void) ResetMagickMemory(pixels,0,*extent);
477 scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,2*
478 sizeof(*scanline));
479 if (scanline == (unsigned char *) NULL)
480 return((unsigned char *) NULL);
481 if (bytes_per_line < 8)
482 {
483 /*
484 Pixels are already uncompressed.
485 */
486 for (y=0; y < (ssize_t) image->rows; y++)
487 {
488 q=pixels+y*width*GetPixelChannels(image);;
489 number_pixels=bytes_per_line;
490 count=ReadBlob(blob,(size_t) number_pixels,scanline);
491 if (count != (ssize_t) number_pixels)
492 {
493 (void) ThrowMagickException(exception,GetMagickModule(),
494 CorruptImageError,"UnableToUncompressImage","`%s'",
495 image->filename);
496 break;
497 }
498 p=ExpandBuffer(scanline,&number_pixels,bits_per_pixel);
499 if ((q+number_pixels) > (pixels+(*extent)))
500 {
501 (void) ThrowMagickException(exception,GetMagickModule(),
502 CorruptImageError,"UnableToUncompressImage","`%s'",
503 image->filename);
504 break;
505 }
506 (void) CopyMagickMemory(q,p,(size_t) number_pixels);
507 }
508 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
509 return(pixels);
510 }
511 /*
512 Uncompress RLE pixels into uncompressed pixel buffer.
513 */
514 for (y=0; y < (ssize_t) image->rows; y++)
515 {
516 q=pixels+y*width;
517 if (bytes_per_line > 200)
518 scanline_length=ReadBlobMSBShort(blob);
519 else
520 scanline_length=1UL*ReadBlobByte(blob);
521 if (scanline_length >= row_bytes)
522 {
523 (void) ThrowMagickException(exception,GetMagickModule(),
524 CorruptImageError,"UnableToUncompressImage","`%s'",image->filename);
525 break;
526 }
527 count=ReadBlob(blob,scanline_length,scanline);
528 if (count != (ssize_t) scanline_length)
529 {
530 (void) ThrowMagickException(exception,GetMagickModule(),
531 CorruptImageError,"UnableToUncompressImage","`%s'",image->filename);
532 break;
533 }
534 for (j=0; j < (ssize_t) scanline_length; )
535 if ((scanline[j] & 0x80) == 0)
536 {
537 length=(size_t) ((scanline[j] & 0xff)+1);
538 number_pixels=length*bytes_per_pixel;
539 p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
540 if ((q-pixels+number_pixels) <= *extent)
541 (void) CopyMagickMemory(q,p,(size_t) number_pixels);
542 q+=number_pixels;
543 j+=(ssize_t) (length*bytes_per_pixel+1);
544 }
545 else
546 {
547 length=(size_t) (((scanline[j] ^ 0xff) & 0xff)+2);
548 number_pixels=bytes_per_pixel;
549 p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
550 for (i=0; i < (ssize_t) length; i++)
551 {
552 if ((q-pixels+number_pixels) <= *extent)
553 (void) CopyMagickMemory(q,p,(size_t) number_pixels);
554 q+=number_pixels;
555 }
556 j+=(ssize_t) bytes_per_pixel+1;
557 }
558 }
559 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
560 return(pixels);
561 }
562
563 /*
564 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
565 % %
566 % %
567 % %
568 % E n c o d e I m a g e %
569 % %
570 % %
571 % %
572 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
573 %
574 % EncodeImage compresses an image via Macintosh pack bits encoding
575 % for Macintosh PICT images.
576 %
577 % The format of the EncodeImage method is:
578 %
579 % size_t EncodeImage(Image *image,const unsigned char *scanline,
580 % const size_t bytes_per_line,unsigned char *pixels)
581 %
582 % A description of each parameter follows:
583 %
584 % o image: the address of a structure of type Image.
585 %
586 % o scanline: A pointer to an array of characters to pack.
587 %
588 % o bytes_per_line: the number of bytes in a scanline.
589 %
590 % o pixels: A pointer to an array of characters where the packed
591 % characters are stored.
592 %
593 */
EncodeImage(Image * image,const unsigned char * scanline,const size_t bytes_per_line,unsigned char * pixels)594 static size_t EncodeImage(Image *image,const unsigned char *scanline,
595 const size_t bytes_per_line,unsigned char *pixels)
596 {
597 #define MaxCount 128
598 #define MaxPackbitsRunlength 128
599
600 register const unsigned char
601 *p;
602
603 register ssize_t
604 i;
605
606 register unsigned char
607 *q;
608
609 size_t
610 length;
611
612 ssize_t
613 count,
614 repeat_count,
615 runlength;
616
617 unsigned char
618 index;
619
620 /*
621 Pack scanline.
622 */
623 assert(image != (Image *) NULL);
624 assert(image->signature == MagickCoreSignature);
625 if (image->debug != MagickFalse)
626 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
627 assert(scanline != (unsigned char *) NULL);
628 assert(pixels != (unsigned char *) NULL);
629 count=0;
630 runlength=0;
631 p=scanline+(bytes_per_line-1);
632 q=pixels;
633 index=(*p);
634 for (i=(ssize_t) bytes_per_line-1; i >= 0; i--)
635 {
636 if (index == *p)
637 runlength++;
638 else
639 {
640 if (runlength < 3)
641 while (runlength > 0)
642 {
643 *q++=(unsigned char) index;
644 runlength--;
645 count++;
646 if (count == MaxCount)
647 {
648 *q++=(unsigned char) (MaxCount-1);
649 count-=MaxCount;
650 }
651 }
652 else
653 {
654 if (count > 0)
655 *q++=(unsigned char) (count-1);
656 count=0;
657 while (runlength > 0)
658 {
659 repeat_count=runlength;
660 if (repeat_count > MaxPackbitsRunlength)
661 repeat_count=MaxPackbitsRunlength;
662 *q++=(unsigned char) index;
663 *q++=(unsigned char) (257-repeat_count);
664 runlength-=repeat_count;
665 }
666 }
667 runlength=1;
668 }
669 index=(*p);
670 p--;
671 }
672 if (runlength < 3)
673 while (runlength > 0)
674 {
675 *q++=(unsigned char) index;
676 runlength--;
677 count++;
678 if (count == MaxCount)
679 {
680 *q++=(unsigned char) (MaxCount-1);
681 count-=MaxCount;
682 }
683 }
684 else
685 {
686 if (count > 0)
687 *q++=(unsigned char) (count-1);
688 count=0;
689 while (runlength > 0)
690 {
691 repeat_count=runlength;
692 if (repeat_count > MaxPackbitsRunlength)
693 repeat_count=MaxPackbitsRunlength;
694 *q++=(unsigned char) index;
695 *q++=(unsigned char) (257-repeat_count);
696 runlength-=repeat_count;
697 }
698 }
699 if (count > 0)
700 *q++=(unsigned char) (count-1);
701 /*
702 Write the number of and the packed length.
703 */
704 length=(size_t) (q-pixels);
705 if (bytes_per_line > 200)
706 {
707 (void) WriteBlobMSBShort(image,(unsigned short) length);
708 length+=2;
709 }
710 else
711 {
712 (void) WriteBlobByte(image,(unsigned char) length);
713 length++;
714 }
715 while (q != pixels)
716 {
717 q--;
718 (void) WriteBlobByte(image,*q);
719 }
720 return(length);
721 }
722
723 /*
724 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
725 % %
726 % %
727 % %
728 % I s P I C T %
729 % %
730 % %
731 % %
732 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
733 %
734 % IsPICT()() returns MagickTrue if the image format type, identified by the
735 % magick string, is PICT.
736 %
737 % The format of the ReadPICTImage method is:
738 %
739 % MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
740 %
741 % A description of each parameter follows:
742 %
743 % o magick: compare image format pattern against these bytes.
744 %
745 % o length: Specifies the length of the magick string.
746 %
747 */
IsPICT(const unsigned char * magick,const size_t length)748 static MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
749 {
750 if (length < 12)
751 return(MagickFalse);
752 /*
753 Embedded OLE2 macintosh have "PICT" instead of 512 platform header.
754 */
755 if (memcmp(magick,"PICT",4) == 0)
756 return(MagickTrue);
757 if (length < 528)
758 return(MagickFalse);
759 if (memcmp(magick+522,"\000\021\002\377\014\000",6) == 0)
760 return(MagickTrue);
761 return(MagickFalse);
762 }
763
764 #if !defined(macintosh)
765 /*
766 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
767 % %
768 % %
769 % %
770 % R e a d P I C T I m a g e %
771 % %
772 % %
773 % %
774 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
775 %
776 % ReadPICTImage() reads an Apple Macintosh QuickDraw/PICT image file
777 % and returns it. It allocates the memory necessary for the new Image
778 % structure and returns a pointer to the new image.
779 %
780 % The format of the ReadPICTImage method is:
781 %
782 % Image *ReadPICTImage(const ImageInfo *image_info,
783 % ExceptionInfo *exception)
784 %
785 % A description of each parameter follows:
786 %
787 % o image_info: the image info.
788 %
789 % o exception: return any errors or warnings in this structure.
790 %
791 */
792
ReadRectangle(Image * image,PICTRectangle * rectangle)793 static MagickBooleanType ReadRectangle(Image *image,PICTRectangle *rectangle)
794 {
795 rectangle->top=(short) ReadBlobMSBShort(image);
796 rectangle->left=(short) ReadBlobMSBShort(image);
797 rectangle->bottom=(short) ReadBlobMSBShort(image);
798 rectangle->right=(short) ReadBlobMSBShort(image);
799 if ((EOFBlob(image) != MagickFalse) || (rectangle->left > rectangle->right) ||
800 (rectangle->top > rectangle->bottom))
801 return(MagickFalse);
802 return(MagickTrue);
803 }
804
ReadPICTImage(const ImageInfo * image_info,ExceptionInfo * exception)805 static Image *ReadPICTImage(const ImageInfo *image_info,
806 ExceptionInfo *exception)
807 {
808 char
809 geometry[MagickPathExtent],
810 header_ole[4];
811
812 Image
813 *image;
814
815 int
816 c,
817 code;
818
819 MagickBooleanType
820 jpeg,
821 status;
822
823 PICTRectangle
824 frame;
825
826 PICTPixmap
827 pixmap;
828
829 Quantum
830 index;
831
832 register Quantum
833 *q;
834
835 register ssize_t
836 i,
837 x;
838
839 size_t
840 extent,
841 length;
842
843 ssize_t
844 count,
845 flags,
846 j,
847 version,
848 y;
849
850 StringInfo
851 *profile;
852
853 /*
854 Open image file.
855 */
856 assert(image_info != (const ImageInfo *) NULL);
857 assert(image_info->signature == MagickCoreSignature);
858 if (image_info->debug != MagickFalse)
859 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
860 image_info->filename);
861 assert(exception != (ExceptionInfo *) NULL);
862 assert(exception->signature == MagickCoreSignature);
863 image=AcquireImage(image_info,exception);
864 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
865 if (status == MagickFalse)
866 {
867 image=DestroyImageList(image);
868 return((Image *) NULL);
869 }
870 /*
871 Read PICT header.
872 */
873 pixmap.bits_per_pixel=0;
874 pixmap.component_count=0;
875 /*
876 Skip header : 512 for standard PICT and 4, ie "PICT" for OLE2.
877 */
878 header_ole[0]=ReadBlobByte(image);
879 header_ole[1]=ReadBlobByte(image);
880 header_ole[2]=ReadBlobByte(image);
881 header_ole[3]=ReadBlobByte(image);
882 if (!((header_ole[0] == 0x50) && (header_ole[1] == 0x49) &&
883 (header_ole[2] == 0x43) && (header_ole[3] == 0x54 )))
884 for (i=0; i < 508; i++)
885 if (ReadBlobByte(image) == EOF)
886 break;
887 (void) ReadBlobMSBShort(image); /* skip picture size */
888 if (ReadRectangle(image,&frame) == MagickFalse)
889 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
890 while ((c=ReadBlobByte(image)) == 0) ;
891 if (c != 0x11)
892 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
893 version=ReadBlobByte(image);
894 if (version == 2)
895 {
896 c=ReadBlobByte(image);
897 if (c != 0xff)
898 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
899 }
900 else
901 if (version != 1)
902 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
903 if ((frame.left < 0) || (frame.right < 0) || (frame.top < 0) ||
904 (frame.bottom < 0) || (frame.left >= frame.right) ||
905 (frame.top >= frame.bottom))
906 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
907 /*
908 Create black canvas.
909 */
910 flags=0;
911 image->depth=8;
912 image->columns=1UL*(frame.right-frame.left);
913 image->rows=1UL*(frame.bottom-frame.top);
914 image->resolution.x=DefaultResolution;
915 image->resolution.y=DefaultResolution;
916 image->units=UndefinedResolution;
917 if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
918 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
919 {
920 (void) CloseBlob(image);
921 return(GetFirstImageInList(image));
922 }
923 status=SetImageExtent(image,image->columns,image->rows,exception);
924 if (status == MagickFalse)
925 return(DestroyImageList(image));
926 /*
927 Interpret PICT opcodes.
928 */
929 jpeg=MagickFalse;
930 for (code=0; EOFBlob(image) == MagickFalse; )
931 {
932 if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
933 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
934 break;
935 if ((version == 1) || ((TellBlob(image) % 2) != 0))
936 code=ReadBlobByte(image);
937 if (version == 2)
938 code=ReadBlobMSBSignedShort(image);
939 if (code < 0)
940 break;
941 if (code > 0xa1)
942 {
943 if (image->debug != MagickFalse)
944 (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%04X:",code);
945 }
946 else
947 {
948 if (image->debug != MagickFalse)
949 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
950 " %04X %s: %s",code,codes[code].name,codes[code].description);
951 switch (code)
952 {
953 case 0x01:
954 {
955 /*
956 Clipping rectangle.
957 */
958 length=ReadBlobMSBShort(image);
959 if (length != 0x000a)
960 {
961 for (i=0; i < (ssize_t) (length-2); i++)
962 if (ReadBlobByte(image) == EOF)
963 break;
964 break;
965 }
966 if (ReadRectangle(image,&frame) == MagickFalse)
967 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
968 if (((frame.left & 0x8000) != 0) || ((frame.top & 0x8000) != 0))
969 break;
970 image->columns=1UL*(frame.right-frame.left);
971 image->rows=1UL*(frame.bottom-frame.top);
972 status=SetImageExtent(image,image->columns,image->rows,exception);
973 if (status == MagickFalse)
974 return(DestroyImageList(image));
975 (void) SetImageBackgroundColor(image,exception);
976 break;
977 }
978 case 0x12:
979 case 0x13:
980 case 0x14:
981 {
982 ssize_t
983 pattern;
984
985 size_t
986 height,
987 width;
988
989 /*
990 Skip pattern definition.
991 */
992 pattern=1L*ReadBlobMSBShort(image);
993 for (i=0; i < 8; i++)
994 if (ReadBlobByte(image) == EOF)
995 break;
996 if (pattern == 2)
997 {
998 for (i=0; i < 5; i++)
999 if (ReadBlobByte(image) == EOF)
1000 break;
1001 break;
1002 }
1003 if (pattern != 1)
1004 ThrowReaderException(CorruptImageError,"UnknownPatternType");
1005 length=ReadBlobMSBShort(image);
1006 if (ReadRectangle(image,&frame) == MagickFalse)
1007 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1008 ReadPixmap(pixmap);
1009 image->depth=1UL*pixmap.component_size;
1010 image->resolution.x=1.0*pixmap.horizontal_resolution;
1011 image->resolution.y=1.0*pixmap.vertical_resolution;
1012 image->units=PixelsPerInchResolution;
1013 (void) ReadBlobMSBLong(image);
1014 flags=1L*ReadBlobMSBShort(image);
1015 length=ReadBlobMSBShort(image);
1016 for (i=0; i <= (ssize_t) length; i++)
1017 (void) ReadBlobMSBLong(image);
1018 width=1UL*(frame.bottom-frame.top);
1019 height=1UL*(frame.right-frame.left);
1020 if (pixmap.bits_per_pixel <= 8)
1021 length&=0x7fff;
1022 if (pixmap.bits_per_pixel == 16)
1023 width<<=1;
1024 if (length == 0)
1025 length=width;
1026 if (length < 8)
1027 {
1028 for (i=0; i < (ssize_t) (length*height); i++)
1029 if (ReadBlobByte(image) == EOF)
1030 break;
1031 }
1032 else
1033 for (j=0; j < (int) height; j++)
1034 if (length > 200)
1035 {
1036 for (j=0; j < (ssize_t) ReadBlobMSBShort(image); j++)
1037 if (ReadBlobByte(image) == EOF)
1038 break;
1039 }
1040 else
1041 for (j=0; j < (ssize_t) ReadBlobByte(image); j++)
1042 if (ReadBlobByte(image) == EOF)
1043 break;
1044 break;
1045 }
1046 case 0x1b:
1047 {
1048 /*
1049 Initialize image background color.
1050 */
1051 image->background_color.red=(Quantum)
1052 ScaleShortToQuantum(ReadBlobMSBShort(image));
1053 image->background_color.green=(Quantum)
1054 ScaleShortToQuantum(ReadBlobMSBShort(image));
1055 image->background_color.blue=(Quantum)
1056 ScaleShortToQuantum(ReadBlobMSBShort(image));
1057 break;
1058 }
1059 case 0x70:
1060 case 0x71:
1061 case 0x72:
1062 case 0x73:
1063 case 0x74:
1064 case 0x75:
1065 case 0x76:
1066 case 0x77:
1067 {
1068 /*
1069 Skip polygon or region.
1070 */
1071 length=ReadBlobMSBShort(image);
1072 for (i=0; i < (ssize_t) (length-2); i++)
1073 if (ReadBlobByte(image) == EOF)
1074 break;
1075 break;
1076 }
1077 case 0x90:
1078 case 0x91:
1079 case 0x98:
1080 case 0x99:
1081 case 0x9a:
1082 case 0x9b:
1083 {
1084 Image
1085 *tile_image;
1086
1087 PICTRectangle
1088 source,
1089 destination;
1090
1091 register unsigned char
1092 *p;
1093
1094 size_t
1095 j;
1096
1097 ssize_t
1098 bytes_per_line;
1099
1100 unsigned char
1101 *pixels;
1102
1103 /*
1104 Pixmap clipped by a rectangle.
1105 */
1106 bytes_per_line=0;
1107 if ((code != 0x9a) && (code != 0x9b))
1108 bytes_per_line=1L*ReadBlobMSBShort(image);
1109 else
1110 {
1111 (void) ReadBlobMSBShort(image);
1112 (void) ReadBlobMSBShort(image);
1113 (void) ReadBlobMSBShort(image);
1114 }
1115 if (ReadRectangle(image,&frame) == MagickFalse)
1116 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1117 /*
1118 Initialize tile image.
1119 */
1120 tile_image=CloneImage(image,1UL*(frame.right-frame.left),
1121 1UL*(frame.bottom-frame.top),MagickTrue,exception);
1122 if (tile_image == (Image *) NULL)
1123 return((Image *) NULL);
1124 if ((code == 0x9a) || (code == 0x9b) ||
1125 ((bytes_per_line & 0x8000) != 0))
1126 {
1127 ReadPixmap(pixmap);
1128 tile_image->depth=1UL*pixmap.component_size;
1129 tile_image->alpha_trait=pixmap.component_count == 4 ?
1130 BlendPixelTrait : UndefinedPixelTrait;
1131 tile_image->resolution.x=(double) pixmap.horizontal_resolution;
1132 tile_image->resolution.y=(double) pixmap.vertical_resolution;
1133 tile_image->units=PixelsPerInchResolution;
1134 if (tile_image->alpha_trait != UndefinedPixelTrait)
1135 image->alpha_trait=tile_image->alpha_trait;
1136 }
1137 if ((code != 0x9a) && (code != 0x9b))
1138 {
1139 /*
1140 Initialize colormap.
1141 */
1142 tile_image->colors=2;
1143 if ((bytes_per_line & 0x8000) != 0)
1144 {
1145 (void) ReadBlobMSBLong(image);
1146 flags=1L*ReadBlobMSBShort(image);
1147 tile_image->colors=1UL*ReadBlobMSBShort(image)+1;
1148 }
1149 status=AcquireImageColormap(tile_image,tile_image->colors,
1150 exception);
1151 if (status == MagickFalse)
1152 {
1153 tile_image=DestroyImage(tile_image);
1154 ThrowReaderException(ResourceLimitError,
1155 "MemoryAllocationFailed");
1156 }
1157 if ((bytes_per_line & 0x8000) != 0)
1158 {
1159 for (i=0; i < (ssize_t) tile_image->colors; i++)
1160 {
1161 j=ReadBlobMSBShort(image) % tile_image->colors;
1162 if ((flags & 0x8000) != 0)
1163 j=(size_t) i;
1164 tile_image->colormap[j].red=(Quantum)
1165 ScaleShortToQuantum(ReadBlobMSBShort(image));
1166 tile_image->colormap[j].green=(Quantum)
1167 ScaleShortToQuantum(ReadBlobMSBShort(image));
1168 tile_image->colormap[j].blue=(Quantum)
1169 ScaleShortToQuantum(ReadBlobMSBShort(image));
1170 }
1171 }
1172 else
1173 {
1174 for (i=0; i < (ssize_t) tile_image->colors; i++)
1175 {
1176 tile_image->colormap[i].red=(Quantum) (QuantumRange-
1177 tile_image->colormap[i].red);
1178 tile_image->colormap[i].green=(Quantum) (QuantumRange-
1179 tile_image->colormap[i].green);
1180 tile_image->colormap[i].blue=(Quantum) (QuantumRange-
1181 tile_image->colormap[i].blue);
1182 }
1183 }
1184 }
1185 if (ReadRectangle(image,&source) == MagickFalse)
1186 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1187 if (ReadRectangle(image,&destination) == MagickFalse)
1188 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1189 (void) ReadBlobMSBShort(image);
1190 if ((code == 0x91) || (code == 0x99) || (code == 0x9b))
1191 {
1192 /*
1193 Skip region.
1194 */
1195 length=ReadBlobMSBShort(image);
1196 for (i=0; i < (ssize_t) (length-2); i++)
1197 if (ReadBlobByte(image) == EOF)
1198 break;
1199 }
1200 if ((code != 0x9a) && (code != 0x9b) &&
1201 (bytes_per_line & 0x8000) == 0)
1202 pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1,&extent,
1203 exception);
1204 else
1205 pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1U*
1206 pixmap.bits_per_pixel,&extent,exception);
1207 if (pixels == (unsigned char *) NULL)
1208 {
1209 tile_image=DestroyImage(tile_image);
1210 ThrowReaderException(ResourceLimitError,
1211 "MemoryAllocationFailed");
1212 }
1213 /*
1214 Convert PICT tile image to pixel packets.
1215 */
1216 p=pixels;
1217 for (y=0; y < (ssize_t) tile_image->rows; y++)
1218 {
1219 if (p > (pixels+extent+image->columns))
1220 ThrowReaderException(CorruptImageError,"NotEnoughPixelData");
1221 q=QueueAuthenticPixels(tile_image,0,y,tile_image->columns,1,
1222 exception);
1223 if (q == (Quantum *) NULL)
1224 break;
1225 for (x=0; x < (ssize_t) tile_image->columns; x++)
1226 {
1227 if (tile_image->storage_class == PseudoClass)
1228 {
1229 index=ConstrainColormapIndex(tile_image,*p,exception);
1230 SetPixelIndex(tile_image,index,q);
1231 SetPixelRed(tile_image,
1232 tile_image->colormap[(ssize_t) index].red,q);
1233 SetPixelGreen(tile_image,
1234 tile_image->colormap[(ssize_t) index].green,q);
1235 SetPixelBlue(tile_image,
1236 tile_image->colormap[(ssize_t) index].blue,q);
1237 }
1238 else
1239 {
1240 if (pixmap.bits_per_pixel == 16)
1241 {
1242 i=(*p++);
1243 j=(*p);
1244 SetPixelRed(tile_image,ScaleCharToQuantum(
1245 (unsigned char) ((i & 0x7c) << 1)),q);
1246 SetPixelGreen(tile_image,ScaleCharToQuantum(
1247 (unsigned char) (((i & 0x03) << 6) |
1248 ((j & 0xe0) >> 2))),q);
1249 SetPixelBlue(tile_image,ScaleCharToQuantum(
1250 (unsigned char) ((j & 0x1f) << 3)),q);
1251 }
1252 else
1253 if (tile_image->alpha_trait == UndefinedPixelTrait)
1254 {
1255 if (p > (pixels+extent+2*image->columns))
1256 ThrowReaderException(CorruptImageError,
1257 "NotEnoughPixelData");
1258 SetPixelRed(tile_image,ScaleCharToQuantum(*p),q);
1259 SetPixelGreen(tile_image,ScaleCharToQuantum(
1260 *(p+tile_image->columns)),q);
1261 SetPixelBlue(tile_image,ScaleCharToQuantum(
1262 *(p+2*tile_image->columns)),q);
1263 }
1264 else
1265 {
1266 if (p > (pixels+extent+3*image->columns))
1267 ThrowReaderException(CorruptImageError,
1268 "NotEnoughPixelData");
1269 SetPixelAlpha(tile_image,ScaleCharToQuantum(*p),q);
1270 SetPixelRed(tile_image,ScaleCharToQuantum(
1271 *(p+tile_image->columns)),q);
1272 SetPixelGreen(tile_image,ScaleCharToQuantum(
1273 *(p+2*tile_image->columns)),q);
1274 SetPixelBlue(tile_image,ScaleCharToQuantum(
1275 *(p+3*tile_image->columns)),q);
1276 }
1277 }
1278 p++;
1279 q+=GetPixelChannels(tile_image);
1280 }
1281 if (SyncAuthenticPixels(tile_image,exception) == MagickFalse)
1282 break;
1283 if ((tile_image->storage_class == DirectClass) &&
1284 (pixmap.bits_per_pixel != 16))
1285 {
1286 p+=(pixmap.component_count-1)*tile_image->columns;
1287 if (p < pixels)
1288 break;
1289 }
1290 status=SetImageProgress(image,LoadImageTag,y,tile_image->rows);
1291 if (status == MagickFalse)
1292 break;
1293 }
1294 pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1295 if (jpeg == MagickFalse)
1296 if ((code == 0x9a) || (code == 0x9b) ||
1297 ((bytes_per_line & 0x8000) != 0))
1298 (void) CompositeImage(image,tile_image,CopyCompositeOp,
1299 MagickTrue,destination.left,destination.top,exception);
1300 tile_image=DestroyImage(tile_image);
1301 break;
1302 }
1303 case 0xa1:
1304 {
1305 unsigned char
1306 *info;
1307
1308 size_t
1309 type;
1310
1311 /*
1312 Comment.
1313 */
1314 type=ReadBlobMSBShort(image);
1315 length=ReadBlobMSBShort(image);
1316 if (length == 0)
1317 break;
1318 (void) ReadBlobMSBLong(image);
1319 length-=4;
1320 if (length == 0)
1321 break;
1322 info=(unsigned char *) AcquireQuantumMemory(length,sizeof(*info));
1323 if (info == (unsigned char *) NULL)
1324 break;
1325 count=ReadBlob(image,length,info);
1326 if (count != (ssize_t) length)
1327 ThrowReaderException(ResourceLimitError,"UnableToReadImageData");
1328 switch (type)
1329 {
1330 case 0xe0:
1331 {
1332 profile=BlobToStringInfo((const void *) NULL,length);
1333 SetStringInfoDatum(profile,info);
1334 status=SetImageProfile(image,"icc",profile,exception);
1335 profile=DestroyStringInfo(profile);
1336 if (status == MagickFalse)
1337 ThrowReaderException(ResourceLimitError,
1338 "MemoryAllocationFailed");
1339 break;
1340 }
1341 case 0x1f2:
1342 {
1343 profile=BlobToStringInfo((const void *) NULL,length);
1344 SetStringInfoDatum(profile,info);
1345 status=SetImageProfile(image,"iptc",profile,exception);
1346 if (status == MagickFalse)
1347 ThrowReaderException(ResourceLimitError,
1348 "MemoryAllocationFailed");
1349 profile=DestroyStringInfo(profile);
1350 break;
1351 }
1352 default:
1353 break;
1354 }
1355 info=(unsigned char *) RelinquishMagickMemory(info);
1356 break;
1357 }
1358 default:
1359 {
1360 /*
1361 Skip to next op code.
1362 */
1363 if (codes[code].length == -1)
1364 (void) ReadBlobMSBShort(image);
1365 else
1366 for (i=0; i < (ssize_t) codes[code].length; i++)
1367 if (ReadBlobByte(image) == EOF)
1368 break;
1369 }
1370 }
1371 }
1372 if (code == 0xc00)
1373 {
1374 /*
1375 Skip header.
1376 */
1377 for (i=0; i < 24; i++)
1378 if (ReadBlobByte(image) == EOF)
1379 break;
1380 continue;
1381 }
1382 if (((code >= 0xb0) && (code <= 0xcf)) ||
1383 ((code >= 0x8000) && (code <= 0x80ff)))
1384 continue;
1385 if (code == 0x8200)
1386 {
1387 FILE
1388 *file;
1389
1390 Image
1391 *tile_image;
1392
1393 ImageInfo
1394 *read_info;
1395
1396 int
1397 unique_file;
1398
1399 /*
1400 Embedded JPEG.
1401 */
1402 jpeg=MagickTrue;
1403 read_info=CloneImageInfo(image_info);
1404 SetImageInfoBlob(read_info,(void *) NULL,0);
1405 file=(FILE *) NULL;
1406 unique_file=AcquireUniqueFileResource(read_info->filename);
1407 if (unique_file != -1)
1408 file=fdopen(unique_file,"wb");
1409 if ((unique_file == -1) || (file == (FILE *) NULL))
1410 {
1411 (void) RelinquishUniqueFileResource(read_info->filename);
1412 (void) CopyMagickString(image->filename,read_info->filename,
1413 MagickPathExtent);
1414 ThrowFileException(exception,FileOpenError,
1415 "UnableToCreateTemporaryFile",image->filename);
1416 image=DestroyImageList(image);
1417 return((Image *) NULL);
1418 }
1419 length=ReadBlobMSBLong(image);
1420 if (length > 154)
1421 {
1422 for (i=0; i < 6; i++)
1423 (void) ReadBlobMSBLong(image);
1424 if (ReadRectangle(image,&frame) == MagickFalse)
1425 {
1426 (void) fclose(file);
1427 (void) RelinquishUniqueFileResource(read_info->filename);
1428 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1429 }
1430 for (i=0; i < 122; i++)
1431 if (ReadBlobByte(image) == EOF)
1432 break;
1433 for (i=0; i < (ssize_t) (length-154); i++)
1434 {
1435 c=ReadBlobByte(image);
1436 if (c == EOF)
1437 break;
1438 (void) fputc(c,file);
1439 }
1440 }
1441 (void) fclose(file);
1442 (void) close(unique_file);
1443 tile_image=ReadImage(read_info,exception);
1444 (void) RelinquishUniqueFileResource(read_info->filename);
1445 read_info=DestroyImageInfo(read_info);
1446 if (tile_image == (Image *) NULL)
1447 continue;
1448 (void) FormatLocaleString(geometry,MagickPathExtent,"%.20gx%.20g",
1449 (double) MagickMax(image->columns,tile_image->columns),
1450 (double) MagickMax(image->rows,tile_image->rows));
1451 (void) SetImageExtent(image,
1452 MagickMax(image->columns,tile_image->columns),
1453 MagickMax(image->rows,tile_image->rows),exception);
1454 (void) TransformImageColorspace(image,tile_image->colorspace,exception);
1455 (void) CompositeImage(image,tile_image,CopyCompositeOp,MagickTrue,
1456 frame.left,frame.right,exception);
1457 image->compression=tile_image->compression;
1458 tile_image=DestroyImage(tile_image);
1459 continue;
1460 }
1461 if ((code == 0xff) || (code == 0xffff))
1462 break;
1463 if (((code >= 0xd0) && (code <= 0xfe)) ||
1464 ((code >= 0x8100) && (code <= 0xffff)))
1465 {
1466 /*
1467 Skip reserved.
1468 */
1469 length=ReadBlobMSBShort(image);
1470 for (i=0; i < (ssize_t) length; i++)
1471 if (ReadBlobByte(image) == EOF)
1472 break;
1473 continue;
1474 }
1475 if ((code >= 0x100) && (code <= 0x7fff))
1476 {
1477 /*
1478 Skip reserved.
1479 */
1480 length=(size_t) ((code >> 7) & 0xff);
1481 for (i=0; i < (ssize_t) length; i++)
1482 if (ReadBlobByte(image) == EOF)
1483 break;
1484 continue;
1485 }
1486 }
1487 (void) CloseBlob(image);
1488 return(GetFirstImageInList(image));
1489 }
1490 #endif
1491
1492 /*
1493 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1494 % %
1495 % %
1496 % %
1497 % R e g i s t e r P I C T I m a g e %
1498 % %
1499 % %
1500 % %
1501 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1502 %
1503 % RegisterPICTImage() adds attributes for the PICT image format to
1504 % the list of supported formats. The attributes include the image format
1505 % tag, a method to read and/or write the format, whether the format
1506 % supports the saving of more than one frame to the same file or blob,
1507 % whether the format supports native in-memory I/O, and a brief
1508 % description of the format.
1509 %
1510 % The format of the RegisterPICTImage method is:
1511 %
1512 % size_t RegisterPICTImage(void)
1513 %
1514 */
RegisterPICTImage(void)1515 ModuleExport size_t RegisterPICTImage(void)
1516 {
1517 MagickInfo
1518 *entry;
1519
1520 entry=AcquireMagickInfo("PICT","PCT","Apple Macintosh QuickDraw/PICT");
1521 entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1522 entry->encoder=(EncodeImageHandler *) WritePICTImage;
1523 entry->flags^=CoderAdjoinFlag;
1524 entry->flags|=CoderSeekableStreamFlag;
1525 entry->magick=(IsImageFormatHandler *) IsPICT;
1526 (void) RegisterMagickInfo(entry);
1527 entry=AcquireMagickInfo("PICT","PICT","Apple Macintosh QuickDraw/PICT");
1528 entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1529 entry->encoder=(EncodeImageHandler *) WritePICTImage;
1530 entry->flags^=CoderAdjoinFlag;
1531 entry->flags|=CoderSeekableStreamFlag;
1532 entry->magick=(IsImageFormatHandler *) IsPICT;
1533 (void) RegisterMagickInfo(entry);
1534 return(MagickImageCoderSignature);
1535 }
1536
1537 /*
1538 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1539 % %
1540 % %
1541 % %
1542 % U n r e g i s t e r P I C T I m a g e %
1543 % %
1544 % %
1545 % %
1546 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1547 %
1548 % UnregisterPICTImage() removes format registrations made by the
1549 % PICT module from the list of supported formats.
1550 %
1551 % The format of the UnregisterPICTImage method is:
1552 %
1553 % UnregisterPICTImage(void)
1554 %
1555 */
UnregisterPICTImage(void)1556 ModuleExport void UnregisterPICTImage(void)
1557 {
1558 (void) UnregisterMagickInfo("PCT");
1559 (void) UnregisterMagickInfo("PICT");
1560 }
1561
1562 /*
1563 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1564 % %
1565 % %
1566 % %
1567 % W r i t e P I C T I m a g e %
1568 % %
1569 % %
1570 % %
1571 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1572 %
1573 % WritePICTImage() writes an image to a file in the Apple Macintosh
1574 % QuickDraw/PICT image format.
1575 %
1576 % The format of the WritePICTImage method is:
1577 %
1578 % MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1579 % Image *image,ExceptionInfo *exception)
1580 %
1581 % A description of each parameter follows.
1582 %
1583 % o image_info: the image info.
1584 %
1585 % o image: The image.
1586 %
1587 % o exception: return any errors or warnings in this structure.
1588 %
1589 */
WritePICTImage(const ImageInfo * image_info,Image * image,ExceptionInfo * exception)1590 static MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1591 Image *image,ExceptionInfo *exception)
1592 {
1593 #define MaxCount 128
1594 #define PictCropRegionOp 0x01
1595 #define PictEndOfPictureOp 0xff
1596 #define PictJPEGOp 0x8200
1597 #define PictInfoOp 0x0C00
1598 #define PictInfoSize 512
1599 #define PictPixmapOp 0x9A
1600 #define PictPICTOp 0x98
1601 #define PictVersion 0x11
1602
1603 const StringInfo
1604 *profile;
1605
1606 double
1607 x_resolution,
1608 y_resolution;
1609
1610 MagickBooleanType
1611 status;
1612
1613 MagickOffsetType
1614 offset;
1615
1616 PICTPixmap
1617 pixmap;
1618
1619 PICTRectangle
1620 bounds,
1621 crop_rectangle,
1622 destination_rectangle,
1623 frame_rectangle,
1624 size_rectangle,
1625 source_rectangle;
1626
1627 register const Quantum
1628 *p;
1629
1630 register ssize_t
1631 i,
1632 x;
1633
1634 size_t
1635 bytes_per_line,
1636 count,
1637 row_bytes,
1638 storage_class;
1639
1640 ssize_t
1641 y;
1642
1643 unsigned char
1644 *buffer,
1645 *packed_scanline,
1646 *scanline;
1647
1648 unsigned short
1649 base_address,
1650 transfer_mode;
1651
1652 /*
1653 Open output image file.
1654 */
1655 assert(image_info != (const ImageInfo *) NULL);
1656 assert(image_info->signature == MagickCoreSignature);
1657 assert(image != (Image *) NULL);
1658 assert(image->signature == MagickCoreSignature);
1659 if (image->debug != MagickFalse)
1660 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1661 if ((image->columns > 65535L) || (image->rows > 65535L))
1662 ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1663 assert(exception != (ExceptionInfo *) NULL);
1664 assert(exception->signature == MagickCoreSignature);
1665 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
1666 if (status == MagickFalse)
1667 return(status);
1668 (void) TransformImageColorspace(image,sRGBColorspace,exception);
1669 /*
1670 Initialize image info.
1671 */
1672 size_rectangle.top=0;
1673 size_rectangle.left=0;
1674 size_rectangle.bottom=(short) image->rows;
1675 size_rectangle.right=(short) image->columns;
1676 frame_rectangle=size_rectangle;
1677 crop_rectangle=size_rectangle;
1678 source_rectangle=size_rectangle;
1679 destination_rectangle=size_rectangle;
1680 base_address=0xff;
1681 row_bytes=image->columns;
1682 bounds.top=0;
1683 bounds.left=0;
1684 bounds.bottom=(short) image->rows;
1685 bounds.right=(short) image->columns;
1686 pixmap.version=0;
1687 pixmap.pack_type=0;
1688 pixmap.pack_size=0;
1689 pixmap.pixel_type=0;
1690 pixmap.bits_per_pixel=8;
1691 pixmap.component_count=1;
1692 pixmap.component_size=8;
1693 pixmap.plane_bytes=0;
1694 pixmap.table=0;
1695 pixmap.reserved=0;
1696 transfer_mode=0;
1697 x_resolution=image->resolution.x != 0.0 ? image->resolution.x :
1698 DefaultResolution;
1699 y_resolution=image->resolution.y != 0.0 ? image->resolution.y :
1700 DefaultResolution;
1701 storage_class=image->storage_class;
1702 if (image_info->compression == JPEGCompression)
1703 storage_class=DirectClass;
1704 if (storage_class == DirectClass)
1705 {
1706 pixmap.component_count=image->alpha_trait != UndefinedPixelTrait ? 4 : 3;
1707 pixmap.pixel_type=16;
1708 pixmap.bits_per_pixel=32;
1709 pixmap.pack_type=0x04;
1710 transfer_mode=0x40;
1711 row_bytes=4*image->columns;
1712 }
1713 /*
1714 Allocate memory.
1715 */
1716 bytes_per_line=image->columns;
1717 if (storage_class == DirectClass)
1718 bytes_per_line*=image->alpha_trait != UndefinedPixelTrait ? 4 : 3;
1719 buffer=(unsigned char *) AcquireQuantumMemory(PictInfoSize,sizeof(*buffer));
1720 packed_scanline=(unsigned char *) AcquireQuantumMemory((size_t)
1721 (row_bytes+MaxCount),sizeof(*packed_scanline));
1722 scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
1723 if ((buffer == (unsigned char *) NULL) ||
1724 (packed_scanline == (unsigned char *) NULL) ||
1725 (scanline == (unsigned char *) NULL))
1726 ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1727 (void) ResetMagickMemory(scanline,0,row_bytes);
1728 (void) ResetMagickMemory(packed_scanline,0,(size_t) (row_bytes+MaxCount));
1729 /*
1730 Write header, header size, size bounding box, version, and reserved.
1731 */
1732 (void) ResetMagickMemory(buffer,0,PictInfoSize);
1733 (void) WriteBlob(image,PictInfoSize,buffer);
1734 (void) WriteBlobMSBShort(image,0);
1735 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.top);
1736 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.left);
1737 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.bottom);
1738 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.right);
1739 (void) WriteBlobMSBShort(image,PictVersion);
1740 (void) WriteBlobMSBShort(image,0x02ff); /* version #2 */
1741 (void) WriteBlobMSBShort(image,PictInfoOp);
1742 (void) WriteBlobMSBLong(image,0xFFFE0000UL);
1743 /*
1744 Write full size of the file, resolution, frame bounding box, and reserved.
1745 */
1746 (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1747 (void) WriteBlobMSBShort(image,0x0000);
1748 (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1749 (void) WriteBlobMSBShort(image,0x0000);
1750 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.top);
1751 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.left);
1752 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.bottom);
1753 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.right);
1754 (void) WriteBlobMSBLong(image,0x00000000L);
1755 profile=GetImageProfile(image,"iptc");
1756 if (profile != (StringInfo *) NULL)
1757 {
1758 (void) WriteBlobMSBShort(image,0xa1);
1759 (void) WriteBlobMSBShort(image,0x1f2);
1760 (void) WriteBlobMSBShort(image,(unsigned short)
1761 (GetStringInfoLength(profile)+4));
1762 (void) WriteBlobString(image,"8BIM");
1763 (void) WriteBlob(image,GetStringInfoLength(profile),
1764 GetStringInfoDatum(profile));
1765 }
1766 profile=GetImageProfile(image,"icc");
1767 if (profile != (StringInfo *) NULL)
1768 {
1769 (void) WriteBlobMSBShort(image,0xa1);
1770 (void) WriteBlobMSBShort(image,0xe0);
1771 (void) WriteBlobMSBShort(image,(unsigned short)
1772 (GetStringInfoLength(profile)+4));
1773 (void) WriteBlobMSBLong(image,0x00000000UL);
1774 (void) WriteBlob(image,GetStringInfoLength(profile),
1775 GetStringInfoDatum(profile));
1776 (void) WriteBlobMSBShort(image,0xa1);
1777 (void) WriteBlobMSBShort(image,0xe0);
1778 (void) WriteBlobMSBShort(image,4);
1779 (void) WriteBlobMSBLong(image,0x00000002UL);
1780 }
1781 /*
1782 Write crop region opcode and crop bounding box.
1783 */
1784 (void) WriteBlobMSBShort(image,PictCropRegionOp);
1785 (void) WriteBlobMSBShort(image,0xa);
1786 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.top);
1787 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.left);
1788 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.bottom);
1789 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.right);
1790 if (image_info->compression == JPEGCompression)
1791 {
1792 Image
1793 *jpeg_image;
1794
1795 ImageInfo
1796 *jpeg_info;
1797
1798 size_t
1799 length;
1800
1801 unsigned char
1802 *blob;
1803
1804 jpeg_image=CloneImage(image,0,0,MagickTrue,exception);
1805 if (jpeg_image == (Image *) NULL)
1806 {
1807 (void) CloseBlob(image);
1808 return(MagickFalse);
1809 }
1810 jpeg_info=CloneImageInfo(image_info);
1811 (void) CopyMagickString(jpeg_info->magick,"JPEG",MagickPathExtent);
1812 length=0;
1813 blob=(unsigned char *) ImageToBlob(jpeg_info,jpeg_image,&length,
1814 exception);
1815 jpeg_info=DestroyImageInfo(jpeg_info);
1816 if (blob == (unsigned char *) NULL)
1817 return(MagickFalse);
1818 jpeg_image=DestroyImage(jpeg_image);
1819 (void) WriteBlobMSBShort(image,PictJPEGOp);
1820 (void) WriteBlobMSBLong(image,(unsigned int) length+154);
1821 (void) WriteBlobMSBShort(image,0x0000);
1822 (void) WriteBlobMSBLong(image,0x00010000UL);
1823 (void) WriteBlobMSBLong(image,0x00000000UL);
1824 (void) WriteBlobMSBLong(image,0x00000000UL);
1825 (void) WriteBlobMSBLong(image,0x00000000UL);
1826 (void) WriteBlobMSBLong(image,0x00010000UL);
1827 (void) WriteBlobMSBLong(image,0x00000000UL);
1828 (void) WriteBlobMSBLong(image,0x00000000UL);
1829 (void) WriteBlobMSBLong(image,0x00000000UL);
1830 (void) WriteBlobMSBLong(image,0x40000000UL);
1831 (void) WriteBlobMSBLong(image,0x00000000UL);
1832 (void) WriteBlobMSBLong(image,0x00000000UL);
1833 (void) WriteBlobMSBLong(image,0x00000000UL);
1834 (void) WriteBlobMSBLong(image,0x00400000UL);
1835 (void) WriteBlobMSBShort(image,0x0000);
1836 (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1837 (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1838 (void) WriteBlobMSBShort(image,0x0000);
1839 (void) WriteBlobMSBShort(image,768);
1840 (void) WriteBlobMSBShort(image,0x0000);
1841 (void) WriteBlobMSBLong(image,0x00000000UL);
1842 (void) WriteBlobMSBLong(image,0x00566A70UL);
1843 (void) WriteBlobMSBLong(image,0x65670000UL);
1844 (void) WriteBlobMSBLong(image,0x00000000UL);
1845 (void) WriteBlobMSBLong(image,0x00000001UL);
1846 (void) WriteBlobMSBLong(image,0x00016170UL);
1847 (void) WriteBlobMSBLong(image,0x706C0000UL);
1848 (void) WriteBlobMSBLong(image,0x00000000UL);
1849 (void) WriteBlobMSBShort(image,768);
1850 (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1851 (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1852 (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1853 (void) WriteBlobMSBShort(image,0x0000);
1854 (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1855 (void) WriteBlobMSBLong(image,0x00000000UL);
1856 (void) WriteBlobMSBLong(image,0x87AC0001UL);
1857 (void) WriteBlobMSBLong(image,0x0B466F74UL);
1858 (void) WriteBlobMSBLong(image,0x6F202D20UL);
1859 (void) WriteBlobMSBLong(image,0x4A504547UL);
1860 (void) WriteBlobMSBLong(image,0x00000000UL);
1861 (void) WriteBlobMSBLong(image,0x00000000UL);
1862 (void) WriteBlobMSBLong(image,0x00000000UL);
1863 (void) WriteBlobMSBLong(image,0x00000000UL);
1864 (void) WriteBlobMSBLong(image,0x00000000UL);
1865 (void) WriteBlobMSBLong(image,0x0018FFFFUL);
1866 (void) WriteBlob(image,length,blob);
1867 if ((length & 0x01) != 0)
1868 (void) WriteBlobByte(image,'\0');
1869 blob=(unsigned char *) RelinquishMagickMemory(blob);
1870 }
1871 /*
1872 Write picture opcode, row bytes, and picture bounding box, and version.
1873 */
1874 if (storage_class == PseudoClass)
1875 (void) WriteBlobMSBShort(image,PictPICTOp);
1876 else
1877 {
1878 (void) WriteBlobMSBShort(image,PictPixmapOp);
1879 (void) WriteBlobMSBLong(image,(size_t) base_address);
1880 }
1881 (void) WriteBlobMSBShort(image,(unsigned short) (row_bytes | 0x8000));
1882 (void) WriteBlobMSBShort(image,(unsigned short) bounds.top);
1883 (void) WriteBlobMSBShort(image,(unsigned short) bounds.left);
1884 (void) WriteBlobMSBShort(image,(unsigned short) bounds.bottom);
1885 (void) WriteBlobMSBShort(image,(unsigned short) bounds.right);
1886 /*
1887 Write pack type, pack size, resolution, pixel type, and pixel size.
1888 */
1889 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.version);
1890 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pack_type);
1891 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.pack_size);
1892 (void) WriteBlobMSBShort(image,(unsigned short) (x_resolution+0.5));
1893 (void) WriteBlobMSBShort(image,0x0000);
1894 (void) WriteBlobMSBShort(image,(unsigned short) (y_resolution+0.5));
1895 (void) WriteBlobMSBShort(image,0x0000);
1896 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pixel_type);
1897 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.bits_per_pixel);
1898 /*
1899 Write component count, size, plane bytes, table size, and reserved.
1900 */
1901 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_count);
1902 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_size);
1903 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.plane_bytes);
1904 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.table);
1905 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.reserved);
1906 if (storage_class == PseudoClass)
1907 {
1908 /*
1909 Write image colormap.
1910 */
1911 (void) WriteBlobMSBLong(image,0x00000000L); /* color seed */
1912 (void) WriteBlobMSBShort(image,0L); /* color flags */
1913 (void) WriteBlobMSBShort(image,(unsigned short) (image->colors-1));
1914 for (i=0; i < (ssize_t) image->colors; i++)
1915 {
1916 (void) WriteBlobMSBShort(image,(unsigned short) i);
1917 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1918 image->colormap[i].red));
1919 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1920 image->colormap[i].green));
1921 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1922 image->colormap[i].blue));
1923 }
1924 }
1925 /*
1926 Write source and destination rectangle.
1927 */
1928 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.top);
1929 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.left);
1930 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.bottom);
1931 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.right);
1932 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.top);
1933 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.left);
1934 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.bottom);
1935 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.right);
1936 (void) WriteBlobMSBShort(image,(unsigned short) transfer_mode);
1937 /*
1938 Write picture data.
1939 */
1940 count=0;
1941 if (storage_class == PseudoClass)
1942 for (y=0; y < (ssize_t) image->rows; y++)
1943 {
1944 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1945 if (p == (const Quantum *) NULL)
1946 break;
1947 for (x=0; x < (ssize_t) image->columns; x++)
1948 {
1949 scanline[x]=(unsigned char) GetPixelIndex(image,p);
1950 p+=GetPixelChannels(image);
1951 }
1952 count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1953 packed_scanline);
1954 if (image->previous == (Image *) NULL)
1955 {
1956 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1957 image->rows);
1958 if (status == MagickFalse)
1959 break;
1960 }
1961 }
1962 else
1963 if (image_info->compression == JPEGCompression)
1964 {
1965 (void) ResetMagickMemory(scanline,0,row_bytes);
1966 for (y=0; y < (ssize_t) image->rows; y++)
1967 count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1968 packed_scanline);
1969 }
1970 else
1971 {
1972 register unsigned char
1973 *blue,
1974 *green,
1975 *opacity,
1976 *red;
1977
1978 red=scanline;
1979 green=scanline+image->columns;
1980 blue=scanline+2*image->columns;
1981 opacity=scanline+3*image->columns;
1982 for (y=0; y < (ssize_t) image->rows; y++)
1983 {
1984 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1985 if (p == (const Quantum *) NULL)
1986 break;
1987 red=scanline;
1988 green=scanline+image->columns;
1989 blue=scanline+2*image->columns;
1990 if (image->alpha_trait != UndefinedPixelTrait)
1991 {
1992 opacity=scanline;
1993 red=scanline+image->columns;
1994 green=scanline+2*image->columns;
1995 blue=scanline+3*image->columns;
1996 }
1997 for (x=0; x < (ssize_t) image->columns; x++)
1998 {
1999 *red++=ScaleQuantumToChar(GetPixelRed(image,p));
2000 *green++=ScaleQuantumToChar(GetPixelGreen(image,p));
2001 *blue++=ScaleQuantumToChar(GetPixelBlue(image,p));
2002 if (image->alpha_trait != UndefinedPixelTrait)
2003 *opacity++=ScaleQuantumToChar((Quantum) (GetPixelAlpha(image,p)));
2004 p+=GetPixelChannels(image);
2005 }
2006 count+=EncodeImage(image,scanline,bytes_per_line,packed_scanline);
2007 if (image->previous == (Image *) NULL)
2008 {
2009 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
2010 image->rows);
2011 if (status == MagickFalse)
2012 break;
2013 }
2014 }
2015 }
2016 if ((count & 0x01) != 0)
2017 (void) WriteBlobByte(image,'\0');
2018 (void) WriteBlobMSBShort(image,PictEndOfPictureOp);
2019 offset=TellBlob(image);
2020 offset=SeekBlob(image,512,SEEK_SET);
2021 (void) WriteBlobMSBShort(image,(unsigned short) offset);
2022 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
2023 packed_scanline=(unsigned char *) RelinquishMagickMemory(packed_scanline);
2024 buffer=(unsigned char *) RelinquishMagickMemory(buffer);
2025 (void) CloseBlob(image);
2026 return(MagickTrue);
2027 }
2028