1 /*
2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 % %
4 % %
5 % %
6 % RRRR AAA W W %
7 % R R A A W W %
8 % RRRR AAAAA W W W %
9 % R R A A WW WW %
10 % R R A A W W %
11 % %
12 % %
13 % Read/Write RAW Image 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/colorspace.h"
47 #include "MagickCore/constitute.h"
48 #include "MagickCore/exception.h"
49 #include "MagickCore/exception-private.h"
50 #include "MagickCore/image.h"
51 #include "MagickCore/image-private.h"
52 #include "MagickCore/list.h"
53 #include "MagickCore/magick.h"
54 #include "MagickCore/memory_.h"
55 #include "MagickCore/monitor.h"
56 #include "MagickCore/monitor-private.h"
57 #include "MagickCore/pixel-accessor.h"
58 #include "MagickCore/quantum-private.h"
59 #include "MagickCore/quantum-private.h"
60 #include "MagickCore/static.h"
61 #include "MagickCore/statistic.h"
62 #include "MagickCore/string_.h"
63 #include "MagickCore/module.h"
64
65 /*
66 Forward declarations.
67 */
68 static MagickBooleanType
69 WriteRAWImage(const ImageInfo *,Image *,ExceptionInfo *);
70
71 /*
72 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
73 % %
74 % %
75 % %
76 % R e a d R A W I m a g e %
77 % %
78 % %
79 % %
80 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
81 %
82 % ReadRAWImage() reads an image of raw samples and returns it. It allocates
83 % the memory necessary for the new Image structure and returns a pointer to
84 % the new image.
85 %
86 % The format of the ReadRAWImage method is:
87 %
88 % Image *ReadRAWImage(const ImageInfo *image_info,ExceptionInfo *exception)
89 %
90 % A description of each parameter follows:
91 %
92 % o image_info: the image info.
93 %
94 % o exception: return any errors or warnings in this structure.
95 %
96 */
ReadRAWImage(const ImageInfo * image_info,ExceptionInfo * exception)97 static Image *ReadRAWImage(const ImageInfo *image_info,ExceptionInfo *exception)
98 {
99 const unsigned char
100 *pixels;
101
102 Image
103 *canvas_image,
104 *image;
105
106 MagickBooleanType
107 status;
108
109 MagickOffsetType
110 scene;
111
112 QuantumInfo
113 *quantum_info;
114
115 QuantumType
116 quantum_type;
117
118 size_t
119 length;
120
121 ssize_t
122 count,
123 y;
124
125 /*
126 Open image file.
127 */
128 assert(image_info != (const ImageInfo *) NULL);
129 assert(image_info->signature == MagickCoreSignature);
130 if (image_info->debug != MagickFalse)
131 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
132 image_info->filename);
133 assert(exception != (ExceptionInfo *) NULL);
134 assert(exception->signature == MagickCoreSignature);
135 image=AcquireImage(image_info,exception);
136 if ((image->columns == 0) || (image->rows == 0))
137 ThrowReaderException(OptionError,"MustSpecifyImageSize");
138 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
139 if (status == MagickFalse)
140 {
141 image=DestroyImageList(image);
142 return((Image *) NULL);
143 }
144 if (DiscardBlobBytes(image,image->offset) == MagickFalse)
145 ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
146 image->filename);
147 /*
148 Create virtual canvas to support cropping (i.e. image.gray[100x100+10+20]).
149 */
150 canvas_image=CloneImage(image,image->extract_info.width,1,MagickFalse,
151 exception);
152 (void) SetImageVirtualPixelMethod(canvas_image,BlackVirtualPixelMethod,
153 exception);
154 quantum_type=GrayQuantum;
155 quantum_info=AcquireQuantumInfo(image_info,canvas_image);
156 if (quantum_info == (QuantumInfo *) NULL)
157 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
158 pixels=(const unsigned char *) NULL;
159 if (image_info->number_scenes != 0)
160 while (image->scene < image_info->scene)
161 {
162 /*
163 Skip to next image.
164 */
165 image->scene++;
166 length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
167 for (y=0; y < (ssize_t) image->rows; y++)
168 {
169 pixels=(const unsigned char *) ReadBlobStream(image,length,
170 GetQuantumPixels(quantum_info),&count);
171 if (count != (ssize_t) length)
172 break;
173 }
174 }
175 scene=0;
176 count=0;
177 length=0;
178 do
179 {
180 /*
181 Read pixels to virtual canvas image then push to image.
182 */
183 if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
184 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
185 break;
186 status=SetImageExtent(image,image->columns,image->rows,exception);
187 if (status == MagickFalse)
188 return(DestroyImageList(image));
189 if (scene == 0)
190 {
191 length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
192 pixels=(const unsigned char *) ReadBlobStream(image,length,
193 GetQuantumPixels(quantum_info),&count);
194 }
195 for (y=0; y < (ssize_t) image->extract_info.height; y++)
196 {
197 register const Quantum
198 *magick_restrict p;
199
200 register Quantum
201 *magick_restrict q;
202
203 register ssize_t
204 x;
205
206 if (count != (ssize_t) length)
207 {
208 ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
209 image->filename);
210 break;
211 }
212 q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,exception);
213 if (q == (Quantum *) NULL)
214 break;
215 length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,quantum_info,
216 quantum_type,pixels,exception);
217 if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
218 break;
219 if (((y-image->extract_info.y) >= 0) &&
220 ((y-image->extract_info.y) < (ssize_t) image->rows))
221 {
222 p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
223 image->columns,1,exception);
224 q=QueueAuthenticPixels(image,0,y-image->extract_info.y,image->columns,
225 1,exception);
226 if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
227 break;
228 for (x=0; x < (ssize_t) image->columns; x++)
229 {
230 SetPixelRed(image,GetPixelRed(canvas_image,p),q);
231 SetPixelGreen(image,GetPixelGreen(canvas_image,p),q);
232 SetPixelBlue(image,GetPixelBlue(canvas_image,p),q);
233 p+=GetPixelChannels(canvas_image);
234 q+=GetPixelChannels(image);
235 }
236 if (SyncAuthenticPixels(image,exception) == MagickFalse)
237 break;
238 }
239 if (image->previous == (Image *) NULL)
240 {
241 status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
242 image->rows);
243 if (status == MagickFalse)
244 break;
245 }
246 pixels=(const unsigned char *) ReadBlobStream(image,length,
247 GetQuantumPixels(quantum_info),&count);
248 }
249 SetQuantumImageType(image,quantum_type);
250 /*
251 Proceed to next image.
252 */
253 if (image_info->number_scenes != 0)
254 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
255 break;
256 if (count == (ssize_t) length)
257 {
258 /*
259 Allocate next image structure.
260 */
261 AcquireNextImage(image_info,image,exception);
262 if (GetNextImageInList(image) == (Image *) NULL)
263 {
264 image=DestroyImageList(image);
265 return((Image *) NULL);
266 }
267 image=SyncNextImageInList(image);
268 status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
269 GetBlobSize(image));
270 if (status == MagickFalse)
271 break;
272 }
273 scene++;
274 } while (count == (ssize_t) length);
275 quantum_info=DestroyQuantumInfo(quantum_info);
276 canvas_image=DestroyImage(canvas_image);
277 (void) CloseBlob(image);
278 return(GetFirstImageInList(image));
279 }
280
281 /*
282 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
283 % %
284 % %
285 % %
286 % R e g i s t e r R A W I m a g e %
287 % %
288 % %
289 % %
290 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
291 %
292 % RegisterRAWImage() adds attributes for the RAW image format to the list of
293 % supported formats. The attributes include the image format tag, a method to
294 % read and/or write the format, whether the format supports the saving of
295 % more than one frame to the same file or blob, whether the format supports
296 % native in-memory I/O, and a brief description of the format.
297 %
298 % The format of the RegisterRAWImage method is:
299 %
300 % size_t RegisterRAWImage(void)
301 %
302 */
RegisterRAWImage(void)303 ModuleExport size_t RegisterRAWImage(void)
304 {
305 MagickInfo
306 *entry;
307
308 entry=AcquireMagickInfo("RAW","R","Raw red samples");
309 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
310 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
311 entry->flags|=CoderRawSupportFlag;
312 entry->flags|=CoderEndianSupportFlag;
313 entry->format_type=ImplicitFormatType;
314 (void) RegisterMagickInfo(entry);
315 entry=AcquireMagickInfo("RAW","C","Raw cyan samples");
316 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
317 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
318 entry->flags|=CoderRawSupportFlag;
319 entry->flags|=CoderEndianSupportFlag;
320 entry->format_type=ImplicitFormatType;
321 (void) RegisterMagickInfo(entry);
322 entry=AcquireMagickInfo("RAW","G","Raw green samples");
323 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
324 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
325 entry->flags|=CoderRawSupportFlag;
326 entry->flags|=CoderEndianSupportFlag;
327 entry->format_type=ImplicitFormatType;
328 (void) RegisterMagickInfo(entry);
329 entry=AcquireMagickInfo("RAW","M","Raw magenta samples");
330 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
331 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
332 entry->flags|=CoderRawSupportFlag;
333 entry->flags|=CoderEndianSupportFlag;
334 entry->format_type=ImplicitFormatType;
335 (void) RegisterMagickInfo(entry);
336 entry=AcquireMagickInfo("RAW","B","Raw blue samples");
337 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
338 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
339 entry->flags|=CoderRawSupportFlag;
340 entry->flags|=CoderEndianSupportFlag;
341 entry->format_type=ImplicitFormatType;
342 (void) RegisterMagickInfo(entry);
343 entry=AcquireMagickInfo("RAW","Y","Raw yellow samples");
344 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
345 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
346 entry->flags|=CoderRawSupportFlag;
347 entry->flags|=CoderEndianSupportFlag;
348 entry->format_type=ImplicitFormatType;
349 (void) RegisterMagickInfo(entry);
350 entry=AcquireMagickInfo("RAW","A","Raw alpha samples");
351 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
352 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
353 entry->flags|=CoderRawSupportFlag;
354 entry->flags|=CoderEndianSupportFlag;
355 entry->format_type=ImplicitFormatType;
356 (void) RegisterMagickInfo(entry);
357 entry=AcquireMagickInfo("RAW","O","Raw opacity samples");
358 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
359 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
360 entry->flags|=CoderRawSupportFlag;
361 entry->flags|=CoderEndianSupportFlag;
362 entry->format_type=ImplicitFormatType;
363 (void) RegisterMagickInfo(entry);
364 entry=AcquireMagickInfo("RAW","K","Raw black samples");
365 entry->decoder=(DecodeImageHandler *) ReadRAWImage;
366 entry->encoder=(EncodeImageHandler *) WriteRAWImage;
367 entry->flags|=CoderRawSupportFlag;
368 entry->flags|=CoderEndianSupportFlag;
369 entry->format_type=ImplicitFormatType;
370 (void) RegisterMagickInfo(entry);
371 return(MagickImageCoderSignature);
372 }
373
374 /*
375 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
376 % %
377 % %
378 % %
379 % U n r e g i s t e r R A W I m a g e %
380 % %
381 % %
382 % %
383 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
384 %
385 % UnregisterRAWImage() removes format registrations made by the RAW module
386 % from the list of supported formats.
387 %
388 % The format of the UnregisterRAWImage method is:
389 %
390 % UnregisterRAWImage(void)
391 %
392 */
UnregisterRAWImage(void)393 ModuleExport void UnregisterRAWImage(void)
394 {
395 (void) UnregisterMagickInfo("R");
396 (void) UnregisterMagickInfo("C");
397 (void) UnregisterMagickInfo("G");
398 (void) UnregisterMagickInfo("M");
399 (void) UnregisterMagickInfo("B");
400 (void) UnregisterMagickInfo("Y");
401 (void) UnregisterMagickInfo("A");
402 (void) UnregisterMagickInfo("O");
403 (void) UnregisterMagickInfo("K");
404 }
405
406 /*
407 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
408 % %
409 % %
410 % %
411 % W r i t e R A W I m a g e %
412 % %
413 % %
414 % %
415 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
416 %
417 % WriteRAWImage() writes an image to a file as raw intensity values.
418 %
419 % The format of the WriteRAWImage method is:
420 %
421 % MagickBooleanType WriteRAWImage(const ImageInfo *image_info,
422 % Image *image,ExceptionInfo *exception)
423 %
424 % A description of each parameter follows.
425 %
426 % o image_info: the image info.
427 %
428 % o image: The image.
429 %
430 % o exception: return any errors or warnings in this structure.
431 %
432 */
WriteRAWImage(const ImageInfo * image_info,Image * image,ExceptionInfo * exception)433 static MagickBooleanType WriteRAWImage(const ImageInfo *image_info,Image *image,
434 ExceptionInfo *exception)
435 {
436 MagickOffsetType
437 scene;
438
439 QuantumInfo
440 *quantum_info;
441
442 QuantumType
443 quantum_type;
444
445 MagickBooleanType
446 status;
447
448 register const Quantum
449 *p;
450
451 size_t
452 length;
453
454 ssize_t
455 count,
456 y;
457
458 unsigned char
459 *pixels;
460
461 /*
462 Open output image file.
463 */
464 assert(image_info != (const ImageInfo *) NULL);
465 assert(image_info->signature == MagickCoreSignature);
466 assert(image != (Image *) NULL);
467 assert(image->signature == MagickCoreSignature);
468 if (image->debug != MagickFalse)
469 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
470 assert(exception != (ExceptionInfo *) NULL);
471 assert(exception->signature == MagickCoreSignature);
472 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
473 if (status == MagickFalse)
474 return(status);
475 switch (*image->magick)
476 {
477 case 'A':
478 case 'a':
479 {
480 quantum_type=AlphaQuantum;
481 break;
482 }
483 case 'B':
484 case 'b':
485 {
486 quantum_type=BlueQuantum;
487 break;
488 }
489 case 'C':
490 case 'c':
491 {
492 quantum_type=CyanQuantum;
493 if (image->colorspace == CMYKColorspace)
494 break;
495 ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
496 }
497 case 'g':
498 case 'G':
499 {
500 quantum_type=GreenQuantum;
501 break;
502 }
503 case 'I':
504 case 'i':
505 {
506 quantum_type=IndexQuantum;
507 break;
508 }
509 case 'K':
510 case 'k':
511 {
512 quantum_type=BlackQuantum;
513 if (image->colorspace == CMYKColorspace)
514 break;
515 ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
516 }
517 case 'M':
518 case 'm':
519 {
520 quantum_type=MagentaQuantum;
521 if (image->colorspace == CMYKColorspace)
522 break;
523 ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
524 }
525 case 'o':
526 case 'O':
527 {
528 quantum_type=OpacityQuantum;
529 break;
530 }
531 case 'R':
532 case 'r':
533 {
534 quantum_type=RedQuantum;
535 break;
536 }
537 case 'Y':
538 case 'y':
539 {
540 quantum_type=YellowQuantum;
541 if (image->colorspace == CMYKColorspace)
542 break;
543 ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
544 }
545 default:
546 {
547 quantum_type=GrayQuantum;
548 break;
549 }
550 }
551 scene=0;
552 do
553 {
554 /*
555 Convert image to RAW raster pixels.
556 */
557 quantum_info=AcquireQuantumInfo(image_info,image);
558 if (quantum_info == (QuantumInfo *) NULL)
559 ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
560 pixels=(unsigned char *) GetQuantumPixels(quantum_info);
561 for (y=0; y < (ssize_t) image->rows; y++)
562 {
563 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
564 if (p == (const Quantum *) NULL)
565 break;
566 length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
567 quantum_type,pixels,exception);
568 count=WriteBlob(image,length,pixels);
569 if (count != (ssize_t) length)
570 break;
571 if (image->previous == (Image *) NULL)
572 {
573 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
574 image->rows);
575 if (status == MagickFalse)
576 break;
577 }
578 }
579 quantum_info=DestroyQuantumInfo(quantum_info);
580 if (GetNextImageInList(image) == (Image *) NULL)
581 break;
582 image=SyncNextImageInList(image);
583 status=SetImageProgress(image,SaveImagesTag,scene++,
584 GetImageListLength(image));
585 if (status == MagickFalse)
586 break;
587 } while (image_info->adjoin != MagickFalse);
588 (void) CloseBlob(image);
589 return(MagickTrue);
590 }
591