1 /*
2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 % %
4 % %
5 % %
6 % AAA V V SSSSS %
7 % A A V V SS %
8 % AAAAA V V SSS %
9 % A A V V SS %
10 % A A V SSSSS %
11 % %
12 % %
13 % Read/Write AVS X 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/colorspace-private.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/static.h"
60 #include "MagickCore/string_.h"
61 #include "MagickCore/module.h"
62
63 /*
64 Forward declarations.
65 */
66 static MagickBooleanType
67 WriteAVSImage(const ImageInfo *,Image *,ExceptionInfo *);
68
69 /*
70 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
71 % %
72 % %
73 % %
74 % R e a d A V S I m a g e %
75 % %
76 % %
77 % %
78 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
79 %
80 % ReadAVSImage() reads an AVS X image file and returns it. It
81 % allocates the memory necessary for the new Image structure and returns a
82 % pointer to the new image.
83 %
84 % The format of the ReadAVSImage method is:
85 %
86 % Image *ReadAVSImage(const ImageInfo *image_info,ExceptionInfo *exception)
87 %
88 % A description of each parameter follows:
89 %
90 % o image_info: the image info.
91 %
92 % o exception: return any errors or warnings in this structure.
93 %
94 */
ReadAVSImage(const ImageInfo * image_info,ExceptionInfo * exception)95 static Image *ReadAVSImage(const ImageInfo *image_info,ExceptionInfo *exception)
96 {
97 Image
98 *image;
99
100 MagickBooleanType
101 status;
102
103 MemoryInfo
104 *pixel_info;
105
106 register Quantum
107 *q;
108
109 register ssize_t
110 x;
111
112 register unsigned char
113 *p;
114
115 size_t
116 height,
117 length,
118 width;
119
120 ssize_t
121 count,
122 y;
123
124 unsigned char
125 *pixels;
126
127 /*
128 Open image file.
129 */
130 assert(image_info != (const ImageInfo *) NULL);
131 assert(image_info->signature == MagickCoreSignature);
132 if (image_info->debug != MagickFalse)
133 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
134 image_info->filename);
135 assert(exception != (ExceptionInfo *) NULL);
136 assert(exception->signature == MagickCoreSignature);
137 image=AcquireImage(image_info,exception);
138 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
139 if (status == MagickFalse)
140 {
141 image=DestroyImageList(image);
142 return((Image *) NULL);
143 }
144 /*
145 Read AVS X image.
146 */
147 width=ReadBlobMSBLong(image);
148 height=ReadBlobMSBLong(image);
149 if (EOFBlob(image) != MagickFalse)
150 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
151 if ((width == 0UL) || (height == 0UL))
152 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
153 do
154 {
155 /*
156 Convert AVS raster image to pixel packets.
157 */
158 image->columns=width;
159 image->rows=height;
160 image->depth=8;
161 if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
162 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
163 break;
164 status=SetImageExtent(image,image->columns,image->rows,exception);
165 if (status == MagickFalse)
166 return(DestroyImageList(image));
167 pixel_info=AcquireVirtualMemory(image->columns,4*sizeof(*pixels));
168 if (pixel_info == (MemoryInfo *) NULL)
169 ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
170 pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
171 length=(size_t) 4*image->columns;
172 for (y=0; y < (ssize_t) image->rows; y++)
173 {
174 count=ReadBlob(image,length,pixels);
175 if ((size_t) count != length)
176 ThrowReaderException(CorruptImageError,"UnableToReadImageData");
177 p=pixels;
178 q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
179 if (q == (Quantum *) NULL)
180 break;
181 for (x=0; x < (ssize_t) image->columns; x++)
182 {
183 SetPixelAlpha(image,ScaleCharToQuantum(*p++),q);
184 SetPixelRed(image,ScaleCharToQuantum(*p++),q);
185 SetPixelGreen(image,ScaleCharToQuantum(*p++),q);
186 SetPixelBlue(image,ScaleCharToQuantum(*p++),q);
187 if (GetPixelAlpha(image,q) != OpaqueAlpha)
188 image->alpha_trait=BlendPixelTrait;
189 q+=GetPixelChannels(image);
190 }
191 if (SyncAuthenticPixels(image,exception) == MagickFalse)
192 break;
193 if (image->previous == (Image *) NULL)
194 {
195 status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
196 image->rows);
197 if (status == MagickFalse)
198 break;
199 }
200 }
201 pixel_info=RelinquishVirtualMemory(pixel_info);
202 if (EOFBlob(image) != MagickFalse)
203 {
204 ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
205 image->filename);
206 break;
207 }
208 /*
209 Proceed to next image.
210 */
211 if (image_info->number_scenes != 0)
212 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
213 break;
214 width=ReadBlobMSBLong(image);
215 height=ReadBlobMSBLong(image);
216 if ((width != 0UL) && (height != 0UL))
217 {
218 /*
219 Allocate next image structure.
220 */
221 AcquireNextImage(image_info,image,exception);
222 if (GetNextImageInList(image) == (Image *) NULL)
223 {
224 image=DestroyImageList(image);
225 return((Image *) NULL);
226 }
227 image=SyncNextImageInList(image);
228 status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
229 GetBlobSize(image));
230 if (status == MagickFalse)
231 break;
232 }
233 } while ((width != 0UL) && (height != 0UL));
234 (void) CloseBlob(image);
235 return(GetFirstImageInList(image));
236 }
237
238 /*
239 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
240 % %
241 % %
242 % %
243 % R e g i s t e r A V S I m a g e %
244 % %
245 % %
246 % %
247 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
248 %
249 % RegisterAVSImage() adds attributes for the AVS X image format to the list
250 % of supported formats. The attributes include the image format tag, a
251 % method to read and/or write the format, whether the format supports the
252 % saving of more than one frame to the same file or blob, whether the format
253 % supports native in-memory I/O, and a brief description of the format.
254 %
255 % The format of the RegisterAVSImage method is:
256 %
257 % size_t RegisterAVSImage(void)
258 %
259 */
RegisterAVSImage(void)260 ModuleExport size_t RegisterAVSImage(void)
261 {
262 MagickInfo
263 *entry;
264
265 entry=AcquireMagickInfo("AVS","AVS","AVS X image");
266 entry->decoder=(DecodeImageHandler *) ReadAVSImage;
267 entry->encoder=(EncodeImageHandler *) WriteAVSImage;
268 (void) RegisterMagickInfo(entry);
269 return(MagickImageCoderSignature);
270 }
271
272 /*
273 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
274 % %
275 % %
276 % %
277 % U n r e g i s t e r A V S I m a g e %
278 % %
279 % %
280 % %
281 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
282 %
283 % UnregisterAVSImage() removes format registrations made by the
284 % AVS module from the list of supported formats.
285 %
286 % The format of the UnregisterAVSImage method is:
287 %
288 % UnregisterAVSImage(void)
289 %
290 */
UnregisterAVSImage(void)291 ModuleExport void UnregisterAVSImage(void)
292 {
293 (void) UnregisterMagickInfo("AVS");
294 }
295
296 /*
297 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
298 % %
299 % %
300 % %
301 % W r i t e A V S I m a g e %
302 % %
303 % %
304 % %
305 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
306 %
307 % WriteAVSImage() writes an image to a file in AVS X image format.
308 %
309 % The format of the WriteAVSImage method is:
310 %
311 % MagickBooleanType WriteAVSImage(const ImageInfo *image_info,
312 % Image *image,ExceptionInfo *exception)
313 %
314 % A description of each parameter follows.
315 %
316 % o image_info: the image info.
317 %
318 % o image: The image.
319 %
320 % o exception: return any errors or warnings in this structure.
321 %
322 */
WriteAVSImage(const ImageInfo * image_info,Image * image,ExceptionInfo * exception)323 static MagickBooleanType WriteAVSImage(const ImageInfo *image_info,Image *image,
324 ExceptionInfo *exception)
325 {
326 MagickBooleanType
327 status;
328
329 MagickOffsetType
330 scene;
331
332 MemoryInfo
333 *pixel_info;
334
335 register const Quantum
336 *magick_restrict p;
337
338 register ssize_t
339 x;
340
341 register unsigned char
342 *magick_restrict q;
343
344 ssize_t
345 count,
346 y;
347
348 unsigned char
349 *pixels;
350
351 /*
352 Open output image file.
353 */
354 assert(image_info != (const ImageInfo *) NULL);
355 assert(image_info->signature == MagickCoreSignature);
356 assert(image != (Image *) NULL);
357 assert(image->signature == MagickCoreSignature);
358 if (image->debug != MagickFalse)
359 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
360 assert(exception != (ExceptionInfo *) NULL);
361 assert(exception->signature == MagickCoreSignature);
362 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
363 if (status == MagickFalse)
364 return(status);
365 scene=0;
366 do
367 {
368 /*
369 Write AVS header.
370 */
371 (void) TransformImageColorspace(image,sRGBColorspace,exception);
372 (void) WriteBlobMSBLong(image,(unsigned int) image->columns);
373 (void) WriteBlobMSBLong(image,(unsigned int) image->rows);
374 /*
375 Allocate memory for pixels.
376 */
377 pixel_info=AcquireVirtualMemory(image->columns,4*sizeof(*pixels));
378 if (pixel_info == (MemoryInfo *) NULL)
379 ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
380 pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
381 /*
382 Convert MIFF to AVS raster pixels.
383 */
384 for (y=0; y < (ssize_t) image->rows; y++)
385 {
386 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
387 if (p == (const Quantum *) NULL)
388 break;
389 q=pixels;
390 for (x=0; x < (ssize_t) image->columns; x++)
391 {
392 *q++=ScaleQuantumToChar((Quantum) (image->alpha_trait ==
393 BlendPixelTrait ? GetPixelAlpha(image,p) : OpaqueAlpha));
394 *q++=ScaleQuantumToChar(GetPixelRed(image,p));
395 *q++=ScaleQuantumToChar(GetPixelGreen(image,p));
396 *q++=ScaleQuantumToChar(GetPixelBlue(image,p));
397 p+=GetPixelChannels(image);
398 }
399 count=WriteBlob(image,(size_t) (q-pixels),pixels);
400 if (count != (ssize_t) (q-pixels))
401 break;
402 if (image->previous == (Image *) NULL)
403 {
404 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
405 image->rows);
406 if (status == MagickFalse)
407 break;
408 }
409 }
410 pixel_info=RelinquishVirtualMemory(pixel_info);
411 if (GetNextImageInList(image) == (Image *) NULL)
412 break;
413 image=SyncNextImageInList(image);
414 status=SetImageProgress(image,SaveImagesTag,scene++,
415 GetImageListLength(image));
416 if (status == MagickFalse)
417 break;
418 } while (image_info->adjoin != MagickFalse);
419 (void) CloseBlob(image);
420 return(MagickTrue);
421 }
422