2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 % PPPP IIIII CCCC TTTTT %
13 % Read/Write Apple Macintosh QuickDraw/PICT Format %
20 % Copyright 1999-2018 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % https://www.imagemagick.org/script/license.php %
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. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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"
74 ImageMagick Macintosh PICT Methods.
76 typedef struct _PICTCode
88 typedef struct _PICTPixmap
96 horizontal_resolution,
111 typedef struct _PICTRectangle
120 static const PICTCode
123 /* 0x00 */ { "NOP", 0, "nop" },
124 /* 0x01 */ { "Clip", 0, "clip" },
125 /* 0x02 */ { "BkPat", 8, "background pattern" },
126 /* 0x03 */ { "TxFont", 2, "text font (word)" },
127 /* 0x04 */ { "TxFace", 1, "text face (byte)" },
128 /* 0x05 */ { "TxMode", 2, "text mode (word)" },
129 /* 0x06 */ { "SpExtra", 4, "space extra (fixed point)" },
130 /* 0x07 */ { "PnSize", 4, "pen size (point)" },
131 /* 0x08 */ { "PnMode", 2, "pen mode (word)" },
132 /* 0x09 */ { "PnPat", 8, "pen pattern" },
133 /* 0x0a */ { "FillPat", 8, "fill pattern" },
134 /* 0x0b */ { "OvSize", 4, "oval size (point)" },
135 /* 0x0c */ { "Origin", 4, "dh, dv (word)" },
136 /* 0x0d */ { "TxSize", 2, "text size (word)" },
137 /* 0x0e */ { "FgColor", 4, "foreground color (ssize_tword)" },
138 /* 0x0f */ { "BkColor", 4, "background color (ssize_tword)" },
139 /* 0x10 */ { "TxRatio", 8, "numerator (point), denominator (point)" },
140 /* 0x11 */ { "Version", 1, "version (byte)" },
141 /* 0x12 */ { "BkPixPat", 0, "color background pattern" },
142 /* 0x13 */ { "PnPixPat", 0, "color pen pattern" },
143 /* 0x14 */ { "FillPixPat", 0, "color fill pattern" },
144 /* 0x15 */ { "PnLocHFrac", 2, "fractional pen position" },
145 /* 0x16 */ { "ChExtra", 2, "extra for each character" },
146 /* 0x17 */ { "reserved", 0, "reserved for Apple use" },
147 /* 0x18 */ { "reserved", 0, "reserved for Apple use" },
148 /* 0x19 */ { "reserved", 0, "reserved for Apple use" },
149 /* 0x1a */ { "RGBFgCol", 6, "RGB foreColor" },
150 /* 0x1b */ { "RGBBkCol", 6, "RGB backColor" },
151 /* 0x1c */ { "HiliteMode", 0, "hilite mode flag" },
152 /* 0x1d */ { "HiliteColor", 6, "RGB hilite color" },
153 /* 0x1e */ { "DefHilite", 0, "Use default hilite color" },
154 /* 0x1f */ { "OpColor", 6, "RGB OpColor for arithmetic modes" },
155 /* 0x20 */ { "Line", 8, "pnLoc (point), newPt (point)" },
156 /* 0x21 */ { "LineFrom", 4, "newPt (point)" },
157 /* 0x22 */ { "ShortLine", 6, "pnLoc (point, dh, dv (-128 .. 127))" },
158 /* 0x23 */ { "ShortLineFrom", 2, "dh, dv (-128 .. 127)" },
159 /* 0x24 */ { "reserved", -1, "reserved for Apple use" },
160 /* 0x25 */ { "reserved", -1, "reserved for Apple use" },
161 /* 0x26 */ { "reserved", -1, "reserved for Apple use" },
162 /* 0x27 */ { "reserved", -1, "reserved for Apple use" },
163 /* 0x28 */ { "LongText", 0, "txLoc (point), count (0..255), text" },
164 /* 0x29 */ { "DHText", 0, "dh (0..255), count (0..255), text" },
165 /* 0x2a */ { "DVText", 0, "dv (0..255), count (0..255), text" },
166 /* 0x2b */ { "DHDVText", 0, "dh, dv (0..255), count (0..255), text" },
167 /* 0x2c */ { "reserved", -1, "reserved for Apple use" },
168 /* 0x2d */ { "reserved", -1, "reserved for Apple use" },
169 /* 0x2e */ { "reserved", -1, "reserved for Apple use" },
170 /* 0x2f */ { "reserved", -1, "reserved for Apple use" },
171 /* 0x30 */ { "frameRect", 8, "rect" },
172 /* 0x31 */ { "paintRect", 8, "rect" },
173 /* 0x32 */ { "eraseRect", 8, "rect" },
174 /* 0x33 */ { "invertRect", 8, "rect" },
175 /* 0x34 */ { "fillRect", 8, "rect" },
176 /* 0x35 */ { "reserved", 8, "reserved for Apple use" },
177 /* 0x36 */ { "reserved", 8, "reserved for Apple use" },
178 /* 0x37 */ { "reserved", 8, "reserved for Apple use" },
179 /* 0x38 */ { "frameSameRect", 0, "rect" },
180 /* 0x39 */ { "paintSameRect", 0, "rect" },
181 /* 0x3a */ { "eraseSameRect", 0, "rect" },
182 /* 0x3b */ { "invertSameRect", 0, "rect" },
183 /* 0x3c */ { "fillSameRect", 0, "rect" },
184 /* 0x3d */ { "reserved", 0, "reserved for Apple use" },
185 /* 0x3e */ { "reserved", 0, "reserved for Apple use" },
186 /* 0x3f */ { "reserved", 0, "reserved for Apple use" },
187 /* 0x40 */ { "frameRRect", 8, "rect" },
188 /* 0x41 */ { "paintRRect", 8, "rect" },
189 /* 0x42 */ { "eraseRRect", 8, "rect" },
190 /* 0x43 */ { "invertRRect", 8, "rect" },
191 /* 0x44 */ { "fillRRrect", 8, "rect" },
192 /* 0x45 */ { "reserved", 8, "reserved for Apple use" },
193 /* 0x46 */ { "reserved", 8, "reserved for Apple use" },
194 /* 0x47 */ { "reserved", 8, "reserved for Apple use" },
195 /* 0x48 */ { "frameSameRRect", 0, "rect" },
196 /* 0x49 */ { "paintSameRRect", 0, "rect" },
197 /* 0x4a */ { "eraseSameRRect", 0, "rect" },
198 /* 0x4b */ { "invertSameRRect", 0, "rect" },
199 /* 0x4c */ { "fillSameRRect", 0, "rect" },
200 /* 0x4d */ { "reserved", 0, "reserved for Apple use" },
201 /* 0x4e */ { "reserved", 0, "reserved for Apple use" },
202 /* 0x4f */ { "reserved", 0, "reserved for Apple use" },
203 /* 0x50 */ { "frameOval", 8, "rect" },
204 /* 0x51 */ { "paintOval", 8, "rect" },
205 /* 0x52 */ { "eraseOval", 8, "rect" },
206 /* 0x53 */ { "invertOval", 8, "rect" },
207 /* 0x54 */ { "fillOval", 8, "rect" },
208 /* 0x55 */ { "reserved", 8, "reserved for Apple use" },
209 /* 0x56 */ { "reserved", 8, "reserved for Apple use" },
210 /* 0x57 */ { "reserved", 8, "reserved for Apple use" },
211 /* 0x58 */ { "frameSameOval", 0, "rect" },
212 /* 0x59 */ { "paintSameOval", 0, "rect" },
213 /* 0x5a */ { "eraseSameOval", 0, "rect" },
214 /* 0x5b */ { "invertSameOval", 0, "rect" },
215 /* 0x5c */ { "fillSameOval", 0, "rect" },
216 /* 0x5d */ { "reserved", 0, "reserved for Apple use" },
217 /* 0x5e */ { "reserved", 0, "reserved for Apple use" },
218 /* 0x5f */ { "reserved", 0, "reserved for Apple use" },
219 /* 0x60 */ { "frameArc", 12, "rect, startAngle, arcAngle" },
220 /* 0x61 */ { "paintArc", 12, "rect, startAngle, arcAngle" },
221 /* 0x62 */ { "eraseArc", 12, "rect, startAngle, arcAngle" },
222 /* 0x63 */ { "invertArc", 12, "rect, startAngle, arcAngle" },
223 /* 0x64 */ { "fillArc", 12, "rect, startAngle, arcAngle" },
224 /* 0x65 */ { "reserved", 12, "reserved for Apple use" },
225 /* 0x66 */ { "reserved", 12, "reserved for Apple use" },
226 /* 0x67 */ { "reserved", 12, "reserved for Apple use" },
227 /* 0x68 */ { "frameSameArc", 4, "rect, startAngle, arcAngle" },
228 /* 0x69 */ { "paintSameArc", 4, "rect, startAngle, arcAngle" },
229 /* 0x6a */ { "eraseSameArc", 4, "rect, startAngle, arcAngle" },
230 /* 0x6b */ { "invertSameArc", 4, "rect, startAngle, arcAngle" },
231 /* 0x6c */ { "fillSameArc", 4, "rect, startAngle, arcAngle" },
232 /* 0x6d */ { "reserved", 4, "reserved for Apple use" },
233 /* 0x6e */ { "reserved", 4, "reserved for Apple use" },
234 /* 0x6f */ { "reserved", 4, "reserved for Apple use" },
235 /* 0x70 */ { "framePoly", 0, "poly" },
236 /* 0x71 */ { "paintPoly", 0, "poly" },
237 /* 0x72 */ { "erasePoly", 0, "poly" },
238 /* 0x73 */ { "invertPoly", 0, "poly" },
239 /* 0x74 */ { "fillPoly", 0, "poly" },
240 /* 0x75 */ { "reserved", 0, "reserved for Apple use" },
241 /* 0x76 */ { "reserved", 0, "reserved for Apple use" },
242 /* 0x77 */ { "reserved", 0, "reserved for Apple use" },
243 /* 0x78 */ { "frameSamePoly", 0, "poly (NYI)" },
244 /* 0x79 */ { "paintSamePoly", 0, "poly (NYI)" },
245 /* 0x7a */ { "eraseSamePoly", 0, "poly (NYI)" },
246 /* 0x7b */ { "invertSamePoly", 0, "poly (NYI)" },
247 /* 0x7c */ { "fillSamePoly", 0, "poly (NYI)" },
248 /* 0x7d */ { "reserved", 0, "reserved for Apple use" },
249 /* 0x7e */ { "reserved", 0, "reserved for Apple use" },
250 /* 0x7f */ { "reserved", 0, "reserved for Apple use" },
251 /* 0x80 */ { "frameRgn", 0, "region" },
252 /* 0x81 */ { "paintRgn", 0, "region" },
253 /* 0x82 */ { "eraseRgn", 0, "region" },
254 /* 0x83 */ { "invertRgn", 0, "region" },
255 /* 0x84 */ { "fillRgn", 0, "region" },
256 /* 0x85 */ { "reserved", 0, "reserved for Apple use" },
257 /* 0x86 */ { "reserved", 0, "reserved for Apple use" },
258 /* 0x87 */ { "reserved", 0, "reserved for Apple use" },
259 /* 0x88 */ { "frameSameRgn", 0, "region (NYI)" },
260 /* 0x89 */ { "paintSameRgn", 0, "region (NYI)" },
261 /* 0x8a */ { "eraseSameRgn", 0, "region (NYI)" },
262 /* 0x8b */ { "invertSameRgn", 0, "region (NYI)" },
263 /* 0x8c */ { "fillSameRgn", 0, "region (NYI)" },
264 /* 0x8d */ { "reserved", 0, "reserved for Apple use" },
265 /* 0x8e */ { "reserved", 0, "reserved for Apple use" },
266 /* 0x8f */ { "reserved", 0, "reserved for Apple use" },
267 /* 0x90 */ { "BitsRect", 0, "copybits, rect clipped" },
268 /* 0x91 */ { "BitsRgn", 0, "copybits, rgn clipped" },
269 /* 0x92 */ { "reserved", -1, "reserved for Apple use" },
270 /* 0x93 */ { "reserved", -1, "reserved for Apple use" },
271 /* 0x94 */ { "reserved", -1, "reserved for Apple use" },
272 /* 0x95 */ { "reserved", -1, "reserved for Apple use" },
273 /* 0x96 */ { "reserved", -1, "reserved for Apple use" },
274 /* 0x97 */ { "reserved", -1, "reserved for Apple use" },
275 /* 0x98 */ { "PackBitsRect", 0, "packed copybits, rect clipped" },
276 /* 0x99 */ { "PackBitsRgn", 0, "packed copybits, rgn clipped" },
277 /* 0x9a */ { "DirectBitsRect", 0, "PixMap, srcRect, dstRect, mode, PixData" },
278 /* 0x9b */ { "DirectBitsRgn", 0, "PixMap, srcRect, dstRect, mode, maskRgn, PixData" },
279 /* 0x9c */ { "reserved", -1, "reserved for Apple use" },
280 /* 0x9d */ { "reserved", -1, "reserved for Apple use" },
281 /* 0x9e */ { "reserved", -1, "reserved for Apple use" },
282 /* 0x9f */ { "reserved", -1, "reserved for Apple use" },
283 /* 0xa0 */ { "ShortComment", 2, "kind (word)" },
284 /* 0xa1 */ { "LongComment", 0, "kind (word), size (word), data" }
288 Forward declarations.
290 static MagickBooleanType
291 WritePICTImage(const ImageInfo *,Image *,ExceptionInfo *);
294 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
298 % D e c o d e I m a g e %
302 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
304 % DecodeImage decompresses an image via Macintosh pack bits decoding for
305 % Macintosh PICT images.
307 % The format of the DecodeImage method is:
309 % unsigned char *DecodeImage(Image *blob,Image *image,
310 % size_t bytes_per_line,const int bits_per_pixel,
311 % unsigned size_t extent)
313 % A description of each parameter follows:
315 % o image_info: the image info.
317 % o blob,image: the address of a structure of type Image.
319 % o bytes_per_line: This integer identifies the number of bytes in a
322 % o bits_per_pixel: the number of bits in a pixel.
324 % o extent: the number of pixels allocated.
328 static unsigned char *ExpandBuffer(unsigned char *pixels,
329 MagickSizeType *bytes_per_line,const unsigned int bits_per_pixel)
334 register unsigned char
343 switch (bits_per_pixel)
351 for (i=0; i < (ssize_t) *bytes_per_line; i++)
353 *q++=(*p >> 4) & 0xff;
362 for (i=0; i < (ssize_t) *bytes_per_line; i++)
364 *q++=(*p >> 6) & 0x03;
365 *q++=(*p >> 4) & 0x03;
366 *q++=(*p >> 2) & 0x03;
375 for (i=0; i < (ssize_t) *bytes_per_line; i++)
377 *q++=(*p >> 7) & 0x01;
378 *q++=(*p >> 6) & 0x01;
379 *q++=(*p >> 5) & 0x01;
380 *q++=(*p >> 4) & 0x01;
381 *q++=(*p >> 3) & 0x01;
382 *q++=(*p >> 2) & 0x01;
383 *q++=(*p >> 1) & 0x01;
396 static unsigned char *DecodeImage(Image *blob,Image *image,
397 size_t bytes_per_line,const unsigned int bits_per_pixel,size_t *extent,
398 ExceptionInfo *exception)
406 register unsigned char
427 Determine pixel buffer size.
429 if (bits_per_pixel <= 8)
430 bytes_per_line&=0x7fff;
431 width=image->columns;
433 if (bits_per_pixel == 16)
439 if (bits_per_pixel == 32)
440 width*=image->alpha_trait ? 4 : 3;
441 if (bytes_per_line == 0)
442 bytes_per_line=width;
443 row_bytes=(size_t) (image->columns | 0x8000);
444 if (image->storage_class == DirectClass)
445 row_bytes=(size_t) ((4*image->columns) | 0x8000);
447 Allocate pixel and scanline buffer.
449 pixels=(unsigned char *) AcquireQuantumMemory(image->rows,row_bytes*
451 if (pixels == (unsigned char *) NULL)
452 return((unsigned char *) NULL);
453 *extent=row_bytes*image->rows*sizeof(*pixels);
454 (void) memset(pixels,0,*extent);
455 scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,2*
457 if (scanline == (unsigned char *) NULL)
459 pixels=(unsigned char *) RelinquishMagickMemory(pixels);
460 return((unsigned char *) NULL);
462 (void) memset(scanline,0,2*row_bytes*sizeof(*scanline));
463 if (bytes_per_line < 8)
466 Pixels are already uncompressed.
468 for (y=0; y < (ssize_t) image->rows; y++)
470 q=pixels+y*width*GetPixelChannels(image);
471 number_pixels=bytes_per_line;
472 count=ReadBlob(blob,(size_t) number_pixels,scanline);
473 if (count != (ssize_t) number_pixels)
475 (void) ThrowMagickException(exception,GetMagickModule(),
476 CorruptImageError,"UnableToUncompressImage","`%s'",
480 p=ExpandBuffer(scanline,&number_pixels,bits_per_pixel);
481 if ((q+number_pixels) > (pixels+(*extent)))
483 (void) ThrowMagickException(exception,GetMagickModule(),
484 CorruptImageError,"UnableToUncompressImage","`%s'",
488 (void) memcpy(q,p,(size_t) number_pixels);
490 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
494 Uncompress RLE pixels into uncompressed pixel buffer.
496 for (y=0; y < (ssize_t) image->rows; y++)
499 if (bytes_per_line > 200)
500 scanline_length=ReadBlobMSBShort(blob);
502 scanline_length=(size_t) ReadBlobByte(blob);
503 if ((scanline_length >= row_bytes) || (scanline_length == 0))
505 (void) ThrowMagickException(exception,GetMagickModule(),
506 CorruptImageError,"UnableToUncompressImage","`%s'",image->filename);
509 count=ReadBlob(blob,scanline_length,scanline);
510 if (count != (ssize_t) scanline_length)
512 (void) ThrowMagickException(exception,GetMagickModule(),
513 CorruptImageError,"UnableToUncompressImage","`%s'",image->filename);
516 for (j=0; j < (ssize_t) scanline_length; )
517 if ((scanline[j] & 0x80) == 0)
519 length=(size_t) ((scanline[j] & 0xff)+1);
520 number_pixels=length*bytes_per_pixel;
521 p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
522 if ((q-pixels+number_pixels) <= *extent)
523 (void) memcpy(q,p,(size_t) number_pixels);
525 j+=(ssize_t) (length*bytes_per_pixel+1);
529 length=(size_t) (((scanline[j] ^ 0xff) & 0xff)+2);
530 number_pixels=bytes_per_pixel;
531 p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
532 for (i=0; i < (ssize_t) length; i++)
534 if ((q-pixels+number_pixels) <= *extent)
535 (void) memcpy(q,p,(size_t) number_pixels);
538 j+=(ssize_t) bytes_per_pixel+1;
541 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
546 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
550 % E n c o d e I m a g e %
554 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
556 % EncodeImage compresses an image via Macintosh pack bits encoding
557 % for Macintosh PICT images.
559 % The format of the EncodeImage method is:
561 % size_t EncodeImage(Image *image,const unsigned char *scanline,
562 % const size_t bytes_per_line,unsigned char *pixels)
564 % A description of each parameter follows:
566 % o image: the address of a structure of type Image.
568 % o scanline: A pointer to an array of characters to pack.
570 % o bytes_per_line: the number of bytes in a scanline.
572 % o pixels: A pointer to an array of characters where the packed
573 % characters are stored.
576 static size_t EncodeImage(Image *image,const unsigned char *scanline,
577 const size_t bytes_per_line,unsigned char *pixels)
580 #define MaxPackbitsRunlength 128
582 register const unsigned char
588 register unsigned char
605 assert(image != (Image *) NULL);
606 assert(image->signature == MagickCoreSignature);
607 if (image->debug != MagickFalse)
608 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
609 assert(scanline != (unsigned char *) NULL);
610 assert(pixels != (unsigned char *) NULL);
613 p=scanline+(bytes_per_line-1);
616 for (i=(ssize_t) bytes_per_line-1; i >= 0; i--)
623 while (runlength > 0)
625 *q++=(unsigned char) index;
628 if (count == MaxCount)
630 *q++=(unsigned char) (MaxCount-1);
637 *q++=(unsigned char) (count-1);
639 while (runlength > 0)
641 repeat_count=runlength;
642 if (repeat_count > MaxPackbitsRunlength)
643 repeat_count=MaxPackbitsRunlength;
644 *q++=(unsigned char) index;
645 *q++=(unsigned char) (257-repeat_count);
646 runlength-=repeat_count;
655 while (runlength > 0)
657 *q++=(unsigned char) index;
660 if (count == MaxCount)
662 *q++=(unsigned char) (MaxCount-1);
669 *q++=(unsigned char) (count-1);
671 while (runlength > 0)
673 repeat_count=runlength;
674 if (repeat_count > MaxPackbitsRunlength)
675 repeat_count=MaxPackbitsRunlength;
676 *q++=(unsigned char) index;
677 *q++=(unsigned char) (257-repeat_count);
678 runlength-=repeat_count;
682 *q++=(unsigned char) (count-1);
684 Write the number of and the packed length.
686 length=(size_t) (q-pixels);
687 if (bytes_per_line > 200)
689 (void) WriteBlobMSBShort(image,(unsigned short) length);
694 (void) WriteBlobByte(image,(unsigned char) length);
700 (void) WriteBlobByte(image,*q);
706 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
714 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
716 % IsPICT()() returns MagickTrue if the image format type, identified by the
717 % magick string, is PICT.
719 % The format of the ReadPICTImage method is:
721 % MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
723 % A description of each parameter follows:
725 % o magick: compare image format pattern against these bytes.
727 % o length: Specifies the length of the magick string.
730 static MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
735 Embedded OLE2 macintosh have "PICT" instead of 512 platform header.
737 if (memcmp(magick,"PICT",4) == 0)
741 if (memcmp(magick+522,"\000\021\002\377\014\000",6) == 0)
746 #if !defined(macintosh)
748 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
752 % R e a d P I C T I m a g e %
756 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
758 % ReadPICTImage() reads an Apple Macintosh QuickDraw/PICT image file
759 % and returns it. It allocates the memory necessary for the new Image
760 % structure and returns a pointer to the new image.
762 % The format of the ReadPICTImage method is:
764 % Image *ReadPICTImage(const ImageInfo *image_info,
765 % ExceptionInfo *exception)
767 % A description of each parameter follows:
769 % o image_info: the image info.
771 % o exception: return any errors or warnings in this structure.
775 static MagickBooleanType ReadPixmap(Image *image,PICTPixmap *pixmap)
777 pixmap->version=(short) ReadBlobMSBShort(image);
778 pixmap->pack_type=(short) ReadBlobMSBShort(image);
779 pixmap->pack_size=ReadBlobMSBLong(image);
780 pixmap->horizontal_resolution=1UL*ReadBlobMSBShort(image);
781 (void) ReadBlobMSBShort(image);
782 pixmap->vertical_resolution=1UL*ReadBlobMSBShort(image);
783 (void) ReadBlobMSBShort(image);
784 pixmap->pixel_type=(short) ReadBlobMSBShort(image);
785 pixmap->bits_per_pixel=(short) ReadBlobMSBShort(image);
786 pixmap->component_count=(short) ReadBlobMSBShort(image);
787 pixmap->component_size=(short) ReadBlobMSBShort(image);
788 pixmap->plane_bytes=ReadBlobMSBLong(image);
789 pixmap->table=ReadBlobMSBLong(image);
790 pixmap->reserved=ReadBlobMSBLong(image);
791 if ((EOFBlob(image) != MagickFalse) || (pixmap->bits_per_pixel <= 0) ||
792 (pixmap->bits_per_pixel > 32) || (pixmap->component_count <= 0) ||
793 (pixmap->component_count > 4) || (pixmap->component_size <= 0))
798 static MagickBooleanType ReadRectangle(Image *image,PICTRectangle *rectangle)
800 rectangle->top=(short) ReadBlobMSBShort(image);
801 rectangle->left=(short) ReadBlobMSBShort(image);
802 rectangle->bottom=(short) ReadBlobMSBShort(image);
803 rectangle->right=(short) ReadBlobMSBShort(image);
804 if ((EOFBlob(image) != MagickFalse) ||
805 ((rectangle->bottom-rectangle->top) <= 0) ||
806 ((rectangle->right-rectangle->left) <= 0))
811 static Image *ReadPICTImage(const ImageInfo *image_info,
812 ExceptionInfo *exception)
814 #define ThrowPICTException(exception,message) \
816 if (tile_image != (Image *) NULL) \
817 tile_image=DestroyImage(tile_image); \
818 if (read_info != (ImageInfo *) NULL) \
819 read_info=DestroyImageInfo(read_info); \
820 ThrowReaderException((exception),(message)); \
824 geometry[MagickPathExtent],
875 assert(image_info != (const ImageInfo *) NULL);
876 assert(image_info->signature == MagickCoreSignature);
877 if (image_info->debug != MagickFalse)
878 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
879 image_info->filename);
880 assert(exception != (ExceptionInfo *) NULL);
881 assert(exception->signature == MagickCoreSignature);
882 image=AcquireImage(image_info,exception);
883 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
884 if (status == MagickFalse)
886 image=DestroyImageList(image);
887 return((Image *) NULL);
892 read_info=(ImageInfo *) NULL;
893 tile_image=(Image *) NULL;
894 pixmap.bits_per_pixel=0;
895 pixmap.component_count=0;
897 Skip header : 512 for standard PICT and 4, ie "PICT" for OLE2.
899 header_ole[0]=ReadBlobByte(image);
900 header_ole[1]=ReadBlobByte(image);
901 header_ole[2]=ReadBlobByte(image);
902 header_ole[3]=ReadBlobByte(image);
903 if (!((header_ole[0] == 0x50) && (header_ole[1] == 0x49) &&
904 (header_ole[2] == 0x43) && (header_ole[3] == 0x54 )))
905 for (i=0; i < 508; i++)
906 if (ReadBlobByte(image) == EOF)
908 (void) ReadBlobMSBShort(image); /* skip picture size */
909 if (ReadRectangle(image,&frame) == MagickFalse)
910 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
911 while ((c=ReadBlobByte(image)) == 0) ;
913 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
914 version=(ssize_t) ReadBlobByte(image);
917 c=ReadBlobByte(image);
919 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
923 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
924 if ((frame.left < 0) || (frame.right < 0) || (frame.top < 0) ||
925 (frame.bottom < 0) || (frame.left >= frame.right) ||
926 (frame.top >= frame.bottom))
927 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
933 image->columns=(size_t) (frame.right-frame.left);
934 image->rows=(size_t) (frame.bottom-frame.top);
935 image->resolution.x=DefaultResolution;
936 image->resolution.y=DefaultResolution;
937 image->units=UndefinedResolution;
938 if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
939 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
941 (void) CloseBlob(image);
942 return(GetFirstImageInList(image));
944 status=SetImageExtent(image,image->columns,image->rows,exception);
945 if (status == MagickFalse)
946 return(DestroyImageList(image));
947 status=ResetImagePixels(image,exception);
948 if (status == MagickFalse)
949 return(DestroyImageList(image));
951 Interpret PICT opcodes.
954 for (code=0; EOFBlob(image) == MagickFalse; )
956 if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
957 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
959 if ((version == 1) || ((TellBlob(image) % 2) != 0))
960 code=ReadBlobByte(image);
962 code=ReadBlobMSBSignedShort(image);
969 if (image->debug != MagickFalse)
970 (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%04X:",code);
974 if (image->debug != MagickFalse)
975 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
976 " %04X %s: %s",code,codes[code].name,codes[code].description);
984 length=ReadBlobMSBShort(image);
985 if (length != 0x000a)
987 for (i=0; i < (ssize_t) (length-2); i++)
988 if (ReadBlobByte(image) == EOF)
992 if (ReadRectangle(image,&frame) == MagickFalse)
993 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
994 if (((frame.left & 0x8000) != 0) || ((frame.top & 0x8000) != 0))
996 image->columns=(size_t) (frame.right-frame.left);
997 image->rows=(size_t) (frame.bottom-frame.top);
998 status=SetImageExtent(image,image->columns,image->rows,exception);
999 if (status == MagickFalse)
1000 return(DestroyImageList(image));
1001 status=ResetImagePixels(image,exception);
1002 if (status == MagickFalse)
1003 return(DestroyImageList(image));
1018 Skip pattern definition.
1020 pattern=(ssize_t) ReadBlobMSBShort(image);
1021 for (i=0; i < 8; i++)
1022 if (ReadBlobByte(image) == EOF)
1026 for (i=0; i < 5; i++)
1027 if (ReadBlobByte(image) == EOF)
1032 ThrowPICTException(CorruptImageError,"UnknownPatternType");
1033 length=ReadBlobMSBShort(image);
1034 if (ReadRectangle(image,&frame) == MagickFalse)
1035 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
1036 if (ReadPixmap(image,&pixmap) == MagickFalse)
1037 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
1038 image->depth=(size_t) pixmap.component_size;
1039 image->resolution.x=1.0*pixmap.horizontal_resolution;
1040 image->resolution.y=1.0*pixmap.vertical_resolution;
1041 image->units=PixelsPerInchResolution;
1042 (void) ReadBlobMSBLong(image);
1043 flags=(ssize_t) ReadBlobMSBShort(image);
1044 length=ReadBlobMSBShort(image);
1045 for (i=0; i <= (ssize_t) length; i++)
1046 (void) ReadBlobMSBLong(image);
1047 width=(size_t) (frame.bottom-frame.top);
1048 height=(size_t) (frame.right-frame.left);
1049 if (pixmap.bits_per_pixel <= 8)
1051 if (pixmap.bits_per_pixel == 16)
1057 for (i=0; i < (ssize_t) (length*height); i++)
1058 if (ReadBlobByte(image) == EOF)
1062 for (i=0; i < (ssize_t) height; i++)
1064 if (EOFBlob(image) != MagickFalse)
1068 for (j=0; j < (ssize_t) ReadBlobMSBShort(image); j++)
1069 if (ReadBlobByte(image) == EOF)
1073 for (j=0; j < (ssize_t) ReadBlobByte(image); j++)
1074 if (ReadBlobByte(image) == EOF)
1082 Initialize image background color.
1084 image->background_color.red=(Quantum)
1085 ScaleShortToQuantum(ReadBlobMSBShort(image));
1086 image->background_color.green=(Quantum)
1087 ScaleShortToQuantum(ReadBlobMSBShort(image));
1088 image->background_color.blue=(Quantum)
1089 ScaleShortToQuantum(ReadBlobMSBShort(image));
1102 Skip polygon or region.
1104 length=ReadBlobMSBShort(image);
1105 for (i=0; i < (ssize_t) (length-2); i++)
1106 if (ReadBlobByte(image) == EOF)
1121 register unsigned char
1134 Pixmap clipped by a rectangle.
1137 if ((code != 0x9a) && (code != 0x9b))
1138 bytes_per_line=(ssize_t) ReadBlobMSBShort(image);
1141 (void) ReadBlobMSBShort(image);
1142 (void) ReadBlobMSBShort(image);
1143 (void) ReadBlobMSBShort(image);
1145 if (ReadRectangle(image,&frame) == MagickFalse)
1146 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
1148 Initialize tile image.
1150 tile_image=CloneImage(image,(size_t) (frame.right-frame.left),
1151 (size_t) (frame.bottom-frame.top),MagickTrue,exception);
1152 if (tile_image == (Image *) NULL)
1153 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
1154 if ((code == 0x9a) || (code == 0x9b) ||
1155 ((bytes_per_line & 0x8000) != 0))
1157 if (ReadPixmap(image,&pixmap) == MagickFalse)
1158 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
1159 tile_image->depth=(size_t) pixmap.component_size;
1160 tile_image->alpha_trait=pixmap.component_count == 4 ?
1161 BlendPixelTrait : UndefinedPixelTrait;
1162 tile_image->resolution.x=(double) pixmap.horizontal_resolution;
1163 tile_image->resolution.y=(double) pixmap.vertical_resolution;
1164 tile_image->units=PixelsPerInchResolution;
1165 if (tile_image->alpha_trait != UndefinedPixelTrait)
1166 (void) SetImageAlpha(image,OpaqueAlpha,exception);
1168 if ((code != 0x9a) && (code != 0x9b))
1171 Initialize colormap.
1173 tile_image->colors=2;
1174 if ((bytes_per_line & 0x8000) != 0)
1176 (void) ReadBlobMSBLong(image);
1177 flags=(ssize_t) ReadBlobMSBShort(image);
1178 tile_image->colors=1UL*ReadBlobMSBShort(image)+1;
1180 status=AcquireImageColormap(tile_image,tile_image->colors,
1182 if (status == MagickFalse)
1183 ThrowPICTException(ResourceLimitError,
1184 "MemoryAllocationFailed");
1185 if ((bytes_per_line & 0x8000) != 0)
1187 for (i=0; i < (ssize_t) tile_image->colors; i++)
1189 j=ReadBlobMSBShort(image) % tile_image->colors;
1190 if ((flags & 0x8000) != 0)
1192 tile_image->colormap[j].red=(Quantum)
1193 ScaleShortToQuantum(ReadBlobMSBShort(image));
1194 tile_image->colormap[j].green=(Quantum)
1195 ScaleShortToQuantum(ReadBlobMSBShort(image));
1196 tile_image->colormap[j].blue=(Quantum)
1197 ScaleShortToQuantum(ReadBlobMSBShort(image));
1202 for (i=0; i < (ssize_t) tile_image->colors; i++)
1204 tile_image->colormap[i].red=(Quantum) (QuantumRange-
1205 tile_image->colormap[i].red);
1206 tile_image->colormap[i].green=(Quantum) (QuantumRange-
1207 tile_image->colormap[i].green);
1208 tile_image->colormap[i].blue=(Quantum) (QuantumRange-
1209 tile_image->colormap[i].blue);
1213 if (ReadRectangle(image,&source) == MagickFalse)
1214 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
1215 if (ReadRectangle(image,&destination) == MagickFalse)
1216 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
1217 (void) ReadBlobMSBShort(image);
1218 if ((code == 0x91) || (code == 0x99) || (code == 0x9b))
1223 length=ReadBlobMSBShort(image);
1224 for (i=0; i < (ssize_t) (length-2); i++)
1225 if (ReadBlobByte(image) == EOF)
1228 if ((code != 0x9a) && (code != 0x9b) &&
1229 (bytes_per_line & 0x8000) == 0)
1230 pixels=DecodeImage(image,tile_image,(size_t) bytes_per_line,1,
1233 pixels=DecodeImage(image,tile_image,(size_t) bytes_per_line,
1234 (unsigned int) pixmap.bits_per_pixel,&extent,exception);
1235 if (pixels == (unsigned char *) NULL)
1236 ThrowPICTException(ResourceLimitError,"MemoryAllocationFailed");
1238 Convert PICT tile image to pixel packets.
1241 for (y=0; y < (ssize_t) tile_image->rows; y++)
1243 if (p > (pixels+extent+image->columns))
1244 ThrowPICTException(CorruptImageError,"NotEnoughPixelData");
1245 q=QueueAuthenticPixels(tile_image,0,y,tile_image->columns,1,
1247 if (q == (Quantum *) NULL)
1249 for (x=0; x < (ssize_t) tile_image->columns; x++)
1251 if (tile_image->storage_class == PseudoClass)
1253 index=(Quantum) ConstrainColormapIndex(tile_image,(ssize_t)
1255 SetPixelIndex(tile_image,index,q);
1256 SetPixelRed(tile_image,
1257 tile_image->colormap[(ssize_t) index].red,q);
1258 SetPixelGreen(tile_image,
1259 tile_image->colormap[(ssize_t) index].green,q);
1260 SetPixelBlue(tile_image,
1261 tile_image->colormap[(ssize_t) index].blue,q);
1265 if (pixmap.bits_per_pixel == 16)
1269 SetPixelRed(tile_image,ScaleCharToQuantum(
1270 (unsigned char) ((i & 0x7c) << 1)),q);
1271 SetPixelGreen(tile_image,ScaleCharToQuantum(
1272 (unsigned char) (((i & 0x03) << 6) |
1273 ((j & 0xe0) >> 2))),q);
1274 SetPixelBlue(tile_image,ScaleCharToQuantum(
1275 (unsigned char) ((j & 0x1f) << 3)),q);
1278 if (tile_image->alpha_trait == UndefinedPixelTrait)
1280 if (p > (pixels+extent+2*image->columns))
1281 ThrowPICTException(CorruptImageError,
1282 "NotEnoughPixelData");
1283 SetPixelRed(tile_image,ScaleCharToQuantum(*p),q);
1284 SetPixelGreen(tile_image,ScaleCharToQuantum(
1285 *(p+tile_image->columns)),q);
1286 SetPixelBlue(tile_image,ScaleCharToQuantum(
1287 *(p+2*tile_image->columns)),q);
1291 if (p > (pixels+extent+3*image->columns))
1292 ThrowPICTException(CorruptImageError,
1293 "NotEnoughPixelData");
1294 SetPixelAlpha(tile_image,ScaleCharToQuantum(*p),q);
1295 SetPixelRed(tile_image,ScaleCharToQuantum(
1296 *(p+tile_image->columns)),q);
1297 SetPixelGreen(tile_image,ScaleCharToQuantum(
1298 *(p+2*tile_image->columns)),q);
1299 SetPixelBlue(tile_image,ScaleCharToQuantum(
1300 *(p+3*tile_image->columns)),q);
1304 q+=GetPixelChannels(tile_image);
1306 if (SyncAuthenticPixels(tile_image,exception) == MagickFalse)
1308 if ((tile_image->storage_class == DirectClass) &&
1309 (pixmap.bits_per_pixel != 16))
1311 p+=(pixmap.component_count-1)*tile_image->columns;
1315 status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
1317 if (status == MagickFalse)
1320 pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1321 if ((jpeg == MagickFalse) && (EOFBlob(image) == MagickFalse))
1322 if ((code == 0x9a) || (code == 0x9b) ||
1323 ((bytes_per_line & 0x8000) != 0))
1324 (void) CompositeImage(image,tile_image,CopyCompositeOp,
1325 MagickTrue,(ssize_t) destination.left,(ssize_t)
1326 destination.top,exception);
1327 tile_image=DestroyImage(tile_image);
1341 type=ReadBlobMSBShort(image);
1342 length=ReadBlobMSBShort(image);
1345 (void) ReadBlobMSBLong(image);
1346 length-=MagickMin(length,4);
1349 info=(unsigned char *) AcquireQuantumMemory(length,sizeof(*info));
1350 if (info == (unsigned char *) NULL)
1352 count=ReadBlob(image,length,info);
1353 if (count != (ssize_t) length)
1355 info=(unsigned char *) RelinquishMagickMemory(info);
1356 ThrowPICTException(ResourceLimitError,"UnableToReadImageData");
1362 profile=BlobToStringInfo((const void *) NULL,length);
1363 SetStringInfoDatum(profile,info);
1364 status=SetImageProfile(image,"icc",profile,exception);
1365 profile=DestroyStringInfo(profile);
1366 if (status == MagickFalse)
1368 info=(unsigned char *) RelinquishMagickMemory(info);
1369 ThrowPICTException(ResourceLimitError,
1370 "MemoryAllocationFailed");
1376 profile=BlobToStringInfo((const void *) NULL,length);
1377 SetStringInfoDatum(profile,info);
1378 status=SetImageProfile(image,"iptc",profile,exception);
1379 if (status == MagickFalse)
1381 info=(unsigned char *) RelinquishMagickMemory(info);
1382 ThrowPICTException(ResourceLimitError,
1383 "MemoryAllocationFailed");
1385 profile=DestroyStringInfo(profile);
1391 info=(unsigned char *) RelinquishMagickMemory(info);
1397 Skip to next op code.
1399 if (codes[code].length == -1)
1400 (void) ReadBlobMSBShort(image);
1402 for (i=0; i < (ssize_t) codes[code].length; i++)
1403 if (ReadBlobByte(image) == EOF)
1413 for (i=0; i < 24; i++)
1414 if (ReadBlobByte(image) == EOF)
1418 if (((code >= 0xb0) && (code <= 0xcf)) ||
1419 ((code >= 0x8000) && (code <= 0x80ff)))
1424 filename[MaxTextExtent];
1436 read_info=CloneImageInfo(image_info);
1437 SetImageInfoBlob(read_info,(void *) NULL,0);
1439 unique_file=AcquireUniqueFileResource(filename);
1440 (void) FormatLocaleString(read_info->filename,MaxTextExtent,"jpeg:%s",
1442 if (unique_file != -1)
1443 file=fdopen(unique_file,"wb");
1444 if ((unique_file == -1) || (file == (FILE *) NULL))
1446 (void) RelinquishUniqueFileResource(read_info->filename);
1447 (void) CopyMagickString(image->filename,read_info->filename,
1449 ThrowFileException(exception,FileOpenError,
1450 "UnableToCreateTemporaryFile",image->filename);
1451 image=DestroyImageList(image);
1452 return((Image *) NULL);
1454 length=ReadBlobMSBLong(image);
1457 for (i=0; i < 6; i++)
1458 (void) ReadBlobMSBLong(image);
1459 if (ReadRectangle(image,&frame) == MagickFalse)
1461 (void) fclose(file);
1462 (void) RelinquishUniqueFileResource(read_info->filename);
1463 ThrowPICTException(CorruptImageError,"ImproperImageHeader");
1465 for (i=0; i < 122; i++)
1466 if (ReadBlobByte(image) == EOF)
1468 for (i=0; i < (ssize_t) (length-154); i++)
1470 c=ReadBlobByte(image);
1473 (void) fputc(c,file);
1476 (void) fclose(file);
1477 (void) close(unique_file);
1478 tile_image=ReadImage(read_info,exception);
1479 (void) RelinquishUniqueFileResource(filename);
1480 read_info=DestroyImageInfo(read_info);
1481 if (tile_image == (Image *) NULL)
1483 (void) FormatLocaleString(geometry,MagickPathExtent,"%.20gx%.20g",
1484 (double) MagickMax(image->columns,tile_image->columns),
1485 (double) MagickMax(image->rows,tile_image->rows));
1486 (void) SetImageExtent(image,
1487 MagickMax(image->columns,tile_image->columns),
1488 MagickMax(image->rows,tile_image->rows),exception);
1489 (void) TransformImageColorspace(image,tile_image->colorspace,exception);
1490 (void) CompositeImage(image,tile_image,CopyCompositeOp,MagickTrue,
1491 (ssize_t) frame.left,(ssize_t) frame.right,exception);
1492 image->compression=tile_image->compression;
1493 tile_image=DestroyImage(tile_image);
1496 if ((code == 0xff) || (code == 0xffff))
1498 if (((code >= 0xd0) && (code <= 0xfe)) ||
1499 ((code >= 0x8100) && (code <= 0xffff)))
1504 length=ReadBlobMSBShort(image);
1505 for (i=0; i < (ssize_t) length; i++)
1506 if (ReadBlobByte(image) == EOF)
1510 if ((code >= 0x100) && (code <= 0x7fff))
1515 length=(size_t) ((code >> 7) & 0xff);
1516 for (i=0; i < (ssize_t) length; i++)
1517 if (ReadBlobByte(image) == EOF)
1522 (void) CloseBlob(image);
1523 return(GetFirstImageInList(image));
1528 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1532 % R e g i s t e r P I C T I m a g e %
1536 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1538 % RegisterPICTImage() adds attributes for the PICT image format to
1539 % the list of supported formats. The attributes include the image format
1540 % tag, a method to read and/or write the format, whether the format
1541 % supports the saving of more than one frame to the same file or blob,
1542 % whether the format supports native in-memory I/O, and a brief
1543 % description of the format.
1545 % The format of the RegisterPICTImage method is:
1547 % size_t RegisterPICTImage(void)
1550 ModuleExport size_t RegisterPICTImage(void)
1555 entry=AcquireMagickInfo("PICT","PCT","Apple Macintosh QuickDraw/PICT");
1556 entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1557 entry->encoder=(EncodeImageHandler *) WritePICTImage;
1558 entry->flags^=CoderAdjoinFlag;
1559 entry->flags|=CoderEncoderSeekableStreamFlag;
1560 entry->magick=(IsImageFormatHandler *) IsPICT;
1561 (void) RegisterMagickInfo(entry);
1562 entry=AcquireMagickInfo("PICT","PICT","Apple Macintosh QuickDraw/PICT");
1563 entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1564 entry->encoder=(EncodeImageHandler *) WritePICTImage;
1565 entry->flags^=CoderAdjoinFlag;
1566 entry->flags|=CoderEncoderSeekableStreamFlag;
1567 entry->magick=(IsImageFormatHandler *) IsPICT;
1568 (void) RegisterMagickInfo(entry);
1569 return(MagickImageCoderSignature);
1573 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1577 % U n r e g i s t e r P I C T I m a g e %
1581 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1583 % UnregisterPICTImage() removes format registrations made by the
1584 % PICT module from the list of supported formats.
1586 % The format of the UnregisterPICTImage method is:
1588 % UnregisterPICTImage(void)
1591 ModuleExport void UnregisterPICTImage(void)
1593 (void) UnregisterMagickInfo("PCT");
1594 (void) UnregisterMagickInfo("PICT");
1598 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1602 % W r i t e P I C T I m a g e %
1606 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1608 % WritePICTImage() writes an image to a file in the Apple Macintosh
1609 % QuickDraw/PICT image format.
1611 % The format of the WritePICTImage method is:
1613 % MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1614 % Image *image,ExceptionInfo *exception)
1616 % A description of each parameter follows.
1618 % o image_info: the image info.
1620 % o image: The image.
1622 % o exception: return any errors or warnings in this structure.
1625 static MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1626 Image *image,ExceptionInfo *exception)
1628 #define MaxCount 128
1629 #define PictCropRegionOp 0x01
1630 #define PictEndOfPictureOp 0xff
1631 #define PictJPEGOp 0x8200
1632 #define PictInfoOp 0x0C00
1633 #define PictInfoSize 512
1634 #define PictPixmapOp 0x9A
1635 #define PictPICTOp 0x98
1636 #define PictVersion 0x11
1657 destination_rectangle,
1662 register const Quantum
1688 Open output image file.
1690 assert(image_info != (const ImageInfo *) NULL);
1691 assert(image_info->signature == MagickCoreSignature);
1692 assert(image != (Image *) NULL);
1693 assert(image->signature == MagickCoreSignature);
1694 if (image->debug != MagickFalse)
1695 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1696 if ((image->columns > 65535L) || (image->rows > 65535L))
1697 ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1698 assert(exception != (ExceptionInfo *) NULL);
1699 assert(exception->signature == MagickCoreSignature);
1700 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
1701 if (status == MagickFalse)
1703 (void) TransformImageColorspace(image,sRGBColorspace,exception);
1705 Initialize image info.
1707 size_rectangle.top=0;
1708 size_rectangle.left=0;
1709 size_rectangle.bottom=(short) image->rows;
1710 size_rectangle.right=(short) image->columns;
1711 frame_rectangle=size_rectangle;
1712 crop_rectangle=size_rectangle;
1713 source_rectangle=size_rectangle;
1714 destination_rectangle=size_rectangle;
1716 row_bytes=image->columns;
1719 bounds.bottom=(short) image->rows;
1720 bounds.right=(short) image->columns;
1724 pixmap.pixel_type=0;
1725 pixmap.bits_per_pixel=8;
1726 pixmap.component_count=1;
1727 pixmap.component_size=8;
1728 pixmap.plane_bytes=0;
1732 x_resolution=image->resolution.x != 0.0 ? image->resolution.x :
1734 y_resolution=image->resolution.y != 0.0 ? image->resolution.y :
1736 storage_class=image->storage_class;
1737 if (image_info->compression == JPEGCompression)
1738 storage_class=DirectClass;
1739 if (storage_class == DirectClass)
1741 pixmap.component_count=image->alpha_trait != UndefinedPixelTrait ? 4 : 3;
1742 pixmap.pixel_type=16;
1743 pixmap.bits_per_pixel=32;
1744 pixmap.pack_type=0x04;
1746 row_bytes=4*image->columns;
1751 bytes_per_line=image->columns;
1752 if (storage_class == DirectClass)
1753 bytes_per_line*=image->alpha_trait != UndefinedPixelTrait ? 4 : 3;
1754 buffer=(unsigned char *) AcquireQuantumMemory(PictInfoSize,sizeof(*buffer));
1755 packed_scanline=(unsigned char *) AcquireQuantumMemory((size_t)
1756 (row_bytes+MaxCount),sizeof(*packed_scanline));
1757 scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
1758 if ((buffer == (unsigned char *) NULL) ||
1759 (packed_scanline == (unsigned char *) NULL) ||
1760 (scanline == (unsigned char *) NULL))
1762 if (scanline != (unsigned char *) NULL)
1763 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
1764 if (packed_scanline != (unsigned char *) NULL)
1765 packed_scanline=(unsigned char *) RelinquishMagickMemory(
1767 if (buffer != (unsigned char *) NULL)
1768 buffer=(unsigned char *) RelinquishMagickMemory(buffer);
1769 ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1771 (void) memset(scanline,0,row_bytes);
1772 (void) memset(packed_scanline,0,(size_t) (row_bytes+MaxCount));
1774 Write header, header size, size bounding box, version, and reserved.
1776 (void) memset(buffer,0,PictInfoSize);
1777 (void) WriteBlob(image,PictInfoSize,buffer);
1778 (void) WriteBlobMSBShort(image,0);
1779 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.top);
1780 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.left);
1781 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.bottom);
1782 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.right);
1783 (void) WriteBlobMSBShort(image,PictVersion);
1784 (void) WriteBlobMSBShort(image,0x02ff); /* version #2 */
1785 (void) WriteBlobMSBShort(image,PictInfoOp);
1786 (void) WriteBlobMSBLong(image,0xFFFE0000U);
1788 Write full size of the file, resolution, frame bounding box, and reserved.
1790 (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1791 (void) WriteBlobMSBShort(image,0x0000);
1792 (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1793 (void) WriteBlobMSBShort(image,0x0000);
1794 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.top);
1795 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.left);
1796 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.bottom);
1797 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.right);
1798 (void) WriteBlobMSBLong(image,0x00000000L);
1799 profile=GetImageProfile(image,"iptc");
1800 if (profile != (StringInfo *) NULL)
1802 (void) WriteBlobMSBShort(image,0xa1);
1803 (void) WriteBlobMSBShort(image,0x1f2);
1804 (void) WriteBlobMSBShort(image,(unsigned short)
1805 (GetStringInfoLength(profile)+4));
1806 (void) WriteBlobString(image,"8BIM");
1807 (void) WriteBlob(image,GetStringInfoLength(profile),
1808 GetStringInfoDatum(profile));
1810 profile=GetImageProfile(image,"icc");
1811 if (profile != (StringInfo *) NULL)
1813 (void) WriteBlobMSBShort(image,0xa1);
1814 (void) WriteBlobMSBShort(image,0xe0);
1815 (void) WriteBlobMSBShort(image,(unsigned short)
1816 (GetStringInfoLength(profile)+4));
1817 (void) WriteBlobMSBLong(image,0x00000000U);
1818 (void) WriteBlob(image,GetStringInfoLength(profile),
1819 GetStringInfoDatum(profile));
1820 (void) WriteBlobMSBShort(image,0xa1);
1821 (void) WriteBlobMSBShort(image,0xe0);
1822 (void) WriteBlobMSBShort(image,4);
1823 (void) WriteBlobMSBLong(image,0x00000002U);
1826 Write crop region opcode and crop bounding box.
1828 (void) WriteBlobMSBShort(image,PictCropRegionOp);
1829 (void) WriteBlobMSBShort(image,0xa);
1830 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.top);
1831 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.left);
1832 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.bottom);
1833 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.right);
1834 if (image_info->compression == JPEGCompression)
1848 jpeg_image=CloneImage(image,0,0,MagickTrue,exception);
1849 if (jpeg_image == (Image *) NULL)
1851 (void) CloseBlob(image);
1852 return(MagickFalse);
1854 jpeg_info=CloneImageInfo(image_info);
1855 (void) CopyMagickString(jpeg_info->magick,"JPEG",MagickPathExtent);
1857 blob=(unsigned char *) ImageToBlob(jpeg_info,jpeg_image,&length,
1859 jpeg_info=DestroyImageInfo(jpeg_info);
1860 if (blob == (unsigned char *) NULL)
1861 return(MagickFalse);
1862 jpeg_image=DestroyImage(jpeg_image);
1863 (void) WriteBlobMSBShort(image,PictJPEGOp);
1864 (void) WriteBlobMSBLong(image,(unsigned int) length+154);
1865 (void) WriteBlobMSBShort(image,0x0000);
1866 (void) WriteBlobMSBLong(image,0x00010000U);
1867 (void) WriteBlobMSBLong(image,0x00000000U);
1868 (void) WriteBlobMSBLong(image,0x00000000U);
1869 (void) WriteBlobMSBLong(image,0x00000000U);
1870 (void) WriteBlobMSBLong(image,0x00010000U);
1871 (void) WriteBlobMSBLong(image,0x00000000U);
1872 (void) WriteBlobMSBLong(image,0x00000000U);
1873 (void) WriteBlobMSBLong(image,0x00000000U);
1874 (void) WriteBlobMSBLong(image,0x40000000U);
1875 (void) WriteBlobMSBLong(image,0x00000000U);
1876 (void) WriteBlobMSBLong(image,0x00000000U);
1877 (void) WriteBlobMSBLong(image,0x00000000U);
1878 (void) WriteBlobMSBLong(image,0x00400000U);
1879 (void) WriteBlobMSBShort(image,0x0000);
1880 (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1881 (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1882 (void) WriteBlobMSBShort(image,0x0000);
1883 (void) WriteBlobMSBShort(image,768);
1884 (void) WriteBlobMSBShort(image,0x0000);
1885 (void) WriteBlobMSBLong(image,0x00000000U);
1886 (void) WriteBlobMSBLong(image,0x00566A70U);
1887 (void) WriteBlobMSBLong(image,0x65670000U);
1888 (void) WriteBlobMSBLong(image,0x00000000U);
1889 (void) WriteBlobMSBLong(image,0x00000001U);
1890 (void) WriteBlobMSBLong(image,0x00016170U);
1891 (void) WriteBlobMSBLong(image,0x706C0000U);
1892 (void) WriteBlobMSBLong(image,0x00000000U);
1893 (void) WriteBlobMSBShort(image,768);
1894 (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1895 (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1896 (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1897 (void) WriteBlobMSBShort(image,0x0000);
1898 (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1899 (void) WriteBlobMSBLong(image,0x00000000U);
1900 (void) WriteBlobMSBLong(image,0x87AC0001U);
1901 (void) WriteBlobMSBLong(image,0x0B466F74U);
1902 (void) WriteBlobMSBLong(image,0x6F202D20U);
1903 (void) WriteBlobMSBLong(image,0x4A504547U);
1904 (void) WriteBlobMSBLong(image,0x00000000U);
1905 (void) WriteBlobMSBLong(image,0x00000000U);
1906 (void) WriteBlobMSBLong(image,0x00000000U);
1907 (void) WriteBlobMSBLong(image,0x00000000U);
1908 (void) WriteBlobMSBLong(image,0x00000000U);
1909 (void) WriteBlobMSBLong(image,0x0018FFFFU);
1910 (void) WriteBlob(image,length,blob);
1911 if ((length & 0x01) != 0)
1912 (void) WriteBlobByte(image,'\0');
1913 blob=(unsigned char *) RelinquishMagickMemory(blob);
1916 Write picture opcode, row bytes, and picture bounding box, and version.
1918 if (storage_class == PseudoClass)
1919 (void) WriteBlobMSBShort(image,PictPICTOp);
1922 (void) WriteBlobMSBShort(image,PictPixmapOp);
1923 (void) WriteBlobMSBLong(image,(unsigned int) base_address);
1925 (void) WriteBlobMSBShort(image,(unsigned short) (row_bytes | 0x8000));
1926 (void) WriteBlobMSBShort(image,(unsigned short) bounds.top);
1927 (void) WriteBlobMSBShort(image,(unsigned short) bounds.left);
1928 (void) WriteBlobMSBShort(image,(unsigned short) bounds.bottom);
1929 (void) WriteBlobMSBShort(image,(unsigned short) bounds.right);
1931 Write pack type, pack size, resolution, pixel type, and pixel size.
1933 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.version);
1934 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pack_type);
1935 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.pack_size);
1936 (void) WriteBlobMSBShort(image,(unsigned short) (x_resolution+0.5));
1937 (void) WriteBlobMSBShort(image,0x0000);
1938 (void) WriteBlobMSBShort(image,(unsigned short) (y_resolution+0.5));
1939 (void) WriteBlobMSBShort(image,0x0000);
1940 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pixel_type);
1941 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.bits_per_pixel);
1943 Write component count, size, plane bytes, table size, and reserved.
1945 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_count);
1946 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_size);
1947 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.plane_bytes);
1948 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.table);
1949 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.reserved);
1950 if (storage_class == PseudoClass)
1953 Write image colormap.
1955 (void) WriteBlobMSBLong(image,0x00000000L); /* color seed */
1956 (void) WriteBlobMSBShort(image,0L); /* color flags */
1957 (void) WriteBlobMSBShort(image,(unsigned short) (image->colors-1));
1958 for (i=0; i < (ssize_t) image->colors; i++)
1960 (void) WriteBlobMSBShort(image,(unsigned short) i);
1961 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1962 image->colormap[i].red));
1963 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1964 image->colormap[i].green));
1965 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1966 image->colormap[i].blue));
1970 Write source and destination rectangle.
1972 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.top);
1973 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.left);
1974 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.bottom);
1975 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.right);
1976 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.top);
1977 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.left);
1978 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.bottom);
1979 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.right);
1980 (void) WriteBlobMSBShort(image,(unsigned short) transfer_mode);
1985 if (storage_class == PseudoClass)
1986 for (y=0; y < (ssize_t) image->rows; y++)
1988 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1989 if (p == (const Quantum *) NULL)
1991 for (x=0; x < (ssize_t) image->columns; x++)
1993 scanline[x]=(unsigned char) GetPixelIndex(image,p);
1994 p+=GetPixelChannels(image);
1996 count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1998 if (image->previous == (Image *) NULL)
2000 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
2002 if (status == MagickFalse)
2007 if (image_info->compression == JPEGCompression)
2009 (void) memset(scanline,0,row_bytes);
2010 for (y=0; y < (ssize_t) image->rows; y++)
2011 count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
2016 register unsigned char
2023 green=scanline+image->columns;
2024 blue=scanline+2*image->columns;
2025 opacity=scanline+3*image->columns;
2026 for (y=0; y < (ssize_t) image->rows; y++)
2028 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
2029 if (p == (const Quantum *) NULL)
2032 green=scanline+image->columns;
2033 blue=scanline+2*image->columns;
2034 if (image->alpha_trait != UndefinedPixelTrait)
2037 red=scanline+image->columns;
2038 green=scanline+2*image->columns;
2039 blue=scanline+3*image->columns;
2041 for (x=0; x < (ssize_t) image->columns; x++)
2043 *red++=ScaleQuantumToChar(GetPixelRed(image,p));
2044 *green++=ScaleQuantumToChar(GetPixelGreen(image,p));
2045 *blue++=ScaleQuantumToChar(GetPixelBlue(image,p));
2046 if (image->alpha_trait != UndefinedPixelTrait)
2047 *opacity++=ScaleQuantumToChar((Quantum) (GetPixelAlpha(image,p)));
2048 p+=GetPixelChannels(image);
2050 count+=EncodeImage(image,scanline,bytes_per_line,packed_scanline);
2051 if (image->previous == (Image *) NULL)
2053 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
2055 if (status == MagickFalse)
2060 if ((count & 0x01) != 0)
2061 (void) WriteBlobByte(image,'\0');
2062 (void) WriteBlobMSBShort(image,PictEndOfPictureOp);
2063 offset=TellBlob(image);
2064 offset=SeekBlob(image,512,SEEK_SET);
2065 (void) WriteBlobMSBShort(image,(unsigned short) offset);
2066 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
2067 packed_scanline=(unsigned char *) RelinquishMagickMemory(packed_scanline);
2068 buffer=(unsigned char *) RelinquishMagickMemory(buffer);
2069 (void) CloseBlob(image);