1/*
2%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3%                                                                             %
4%                                                                             %
5%                                                                             %
6%                             AAA   RRRR   TTTTT                              %
7%                            A   A  R   R    T                                %
8%                            AAAAA  RRRR     T                                %
9%                            A   A  R R      T                                %
10%                            A   A  R  R     T                                %
11%                                                                             %
12%                                                                             %
13%                 Support PFS: 1st Publisher Clip Art 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/attribute.h"
44#include "MagickCore/blob.h"
45#include "MagickCore/blob-private.h"
46#include "MagickCore/cache.h"
47#include "MagickCore/color-private.h"
48#include "MagickCore/colormap.h"
49#include "MagickCore/colorspace.h"
50#include "MagickCore/colorspace-private.h"
51#include "MagickCore/exception.h"
52#include "MagickCore/exception-private.h"
53#include "MagickCore/image.h"
54#include "MagickCore/image-private.h"
55#include "MagickCore/list.h"
56#include "MagickCore/magick.h"
57#include "MagickCore/memory_.h"
58#include "MagickCore/monitor.h"
59#include "MagickCore/monitor-private.h"
60#include "MagickCore/quantum-private.h"
61#include "MagickCore/static.h"
62#include "MagickCore/string_.h"
63#include "MagickCore/module.h"
64
65/*
66  Forward declarations.
67*/
68static MagickBooleanType
69  WriteARTImage(const ImageInfo *,Image *,ExceptionInfo *);
70
71/*
72%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
73%                                                                             %
74%                                                                             %
75%                                                                             %
76%   R e a d A R T I m a g e                                                   %
77%                                                                             %
78%                                                                             %
79%                                                                             %
80%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
81%
82%  ReadARTImage() reads an image of raw bits in LSB order and returns it.
83%  It allocates the memory necessary for the new Image structure and returns
84%  a pointer to the new image.
85%
86%  The format of the ReadARTImage method is:
87%
88%      Image *ReadARTImage(const ImageInfo *image_info,
89%        ExceptionInfo *exception)
90%
91%  A description of each parameter follows:
92%
93%    o image_info: the image info.
94%
95%    o exception: return any errors or warnings in this structure.
96%
97*/
98static Image *ReadARTImage(const ImageInfo *image_info,ExceptionInfo *exception)
99{
100  const unsigned char
101    *pixels;
102
103  Image
104    *image;
105
106  QuantumInfo
107    *quantum_info;
108
109  MagickBooleanType
110    status;
111
112  size_t
113    length;
114
115  ssize_t
116    count,
117    y;
118
119  /*
120    Open image file.
121  */
122  assert(image_info != (const ImageInfo *) NULL);
123  assert(image_info->signature == MagickCoreSignature);
124  if (image_info->debug != MagickFalse)
125    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
126      image_info->filename);
127  assert(exception != (ExceptionInfo *) NULL);
128  assert(exception->signature == MagickCoreSignature);
129  image=AcquireImage(image_info,exception);
130  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
131  if (status == MagickFalse)
132    {
133      image=DestroyImageList(image);
134      return((Image *) NULL);
135    }
136  image->depth=1;
137  image->endian=MSBEndian;
138  (void) ReadBlobLSBShort(image);
139  image->columns=(size_t) ReadBlobLSBShort(image);
140  (void) ReadBlobLSBShort(image);
141  image->rows=(size_t) ReadBlobLSBShort(image);
142  if ((image->columns == 0) || (image->rows == 0))
143    ThrowReaderException(CorruptImageError,"ImproperImageHeader");
144  if (image_info->ping != MagickFalse)
145    {
146      (void) CloseBlob(image);
147      return(GetFirstImageInList(image));
148    }
149  status=SetImageExtent(image,image->columns,image->rows,exception);
150  if (status == MagickFalse)
151    return(DestroyImageList(image));
152  /*
153    Convert bi-level image to pixel packets.
154  */
155  SetImageColorspace(image,GRAYColorspace,exception);
156  quantum_info=AcquireQuantumInfo(image_info,image);
157  if (quantum_info == (QuantumInfo *) NULL)
158    ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
159  length=GetQuantumExtent(image,quantum_info,GrayQuantum);
160  for (y=0; y < (ssize_t) image->rows; y++)
161  {
162    register Quantum
163      *magick_restrict q;
164
165    q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
166    if (q == (Quantum *) NULL)
167      break;
168    pixels=(const unsigned char *) ReadBlobStream(image,length,
169      GetQuantumPixels(quantum_info),&count);
170    if (count != (ssize_t) length)
171      ThrowReaderException(CorruptImageError,"UnableToReadImageData");
172    (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
173      GrayQuantum,pixels,exception);
174    pixels=(const unsigned char *) ReadBlobStream(image,(size_t) (-(ssize_t)
175      length) & 0x01,GetQuantumPixels(quantum_info),&count);
176    if (SyncAuthenticPixels(image,exception) == MagickFalse)
177      break;
178    if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse)
179      break;
180  }
181  SetQuantumImageType(image,GrayQuantum);
182  quantum_info=DestroyQuantumInfo(quantum_info);
183  if (EOFBlob(image) != MagickFalse)
184    ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
185      image->filename);
186  (void) CloseBlob(image);
187  return(GetFirstImageInList(image));
188}
189
190/*
191%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
192%                                                                             %
193%                                                                             %
194%                                                                             %
195%   R e g i s t e r A R T I m a g e                                           %
196%                                                                             %
197%                                                                             %
198%                                                                             %
199%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
200%
201%  RegisterARTImage() adds attributes for the ART image format to
202%  the list of supported formats.  The attributes include the image format
203%  tag, a method to read and/or write the format, whether the format
204%  supports the saving of more than one frame to the same file or blob,
205%  whether the format supports native in-memory I/O, and a brief
206%  description of the format.
207%
208%  The format of the RegisterARTImage method is:
209%
210%      size_t RegisterARTImage(void)
211%
212*/
213ModuleExport size_t RegisterARTImage(void)
214{
215  MagickInfo
216    *entry;
217
218  entry=AcquireMagickInfo("ART","ART","PFS: 1st Publisher Clip Art");
219  entry->decoder=(DecodeImageHandler *) ReadARTImage;
220  entry->encoder=(EncodeImageHandler *) WriteARTImage;
221  entry->flags|=CoderRawSupportFlag;
222  entry->flags^=CoderAdjoinFlag;
223  (void) RegisterMagickInfo(entry);
224  return(MagickImageCoderSignature);
225}
226
227/*
228%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
229%                                                                             %
230%                                                                             %
231%                                                                             %
232%   U n r e g i s t e r A R T I m a g e                                       %
233%                                                                             %
234%                                                                             %
235%                                                                             %
236%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
237%
238%  UnregisterARTImage() removes format registrations made by the
239%  ART module from the list of supported formats.
240%
241%  The format of the UnregisterARTImage method is:
242%
243%      UnregisterARTImage(void)
244%
245*/
246ModuleExport void UnregisterARTImage(void)
247{
248  (void) UnregisterMagickInfo("ART");
249}
250
251/*
252%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
253%                                                                             %
254%                                                                             %
255%                                                                             %
256%   W r i t e A R T I m a g e                                                 %
257%                                                                             %
258%                                                                             %
259%                                                                             %
260%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
261%
262%  WriteARTImage() writes an image of raw bits in LSB order to a file.
263%
264%  The format of the WriteARTImage method is:
265%
266%      MagickBooleanType WriteARTImage(const ImageInfo *image_info,
267%        Image *image,ExceptionInfo *exception)
268%
269%  A description of each parameter follows.
270%
271%    o image_info: the image info.
272%
273%    o image:  The image.
274%
275%    o exception: return any errors or warnings in this structure.
276%
277*/
278static MagickBooleanType WriteARTImage(const ImageInfo *image_info,Image *image,
279  ExceptionInfo *exception)
280{
281  MagickBooleanType
282    status;
283
284  QuantumInfo
285    *quantum_info;
286
287  register const Quantum
288    *p;
289
290  size_t
291    length;
292
293  ssize_t
294    count,
295    y;
296
297  unsigned char
298    *pixels;
299
300  /*
301    Open output image file.
302  */
303  assert(image_info != (const ImageInfo *) NULL);
304  assert(image_info->signature == MagickCoreSignature);
305  assert(image != (Image *) NULL);
306  assert(image->signature == MagickCoreSignature);
307  if (image->debug != MagickFalse)
308    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
309  assert(exception != (ExceptionInfo *) NULL);
310  assert(exception->signature == MagickCoreSignature);
311  status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
312  if (status == MagickFalse)
313    return(status);
314  if ((image->columns > 65535UL) || (image->rows > 65535UL))
315    ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
316  (void) TransformImageColorspace(image,sRGBColorspace,exception);
317  (void) SetImageType(image,BilevelType,exception);
318  image->endian=MSBEndian;
319  image->depth=1;
320  (void) WriteBlobLSBShort(image,0);
321  (void) WriteBlobLSBShort(image,(unsigned short) image->columns);
322  (void) WriteBlobLSBShort(image,0);
323  (void) WriteBlobLSBShort(image,(unsigned short) image->rows);
324  quantum_info=AcquireQuantumInfo(image_info,image);
325  pixels=(unsigned char *) GetQuantumPixels(quantum_info);
326  for (y=0; y < (ssize_t) image->rows; y++)
327  {
328    p=GetVirtualPixels(image,0,y,image->columns,1,exception);
329    if (p == (const Quantum *) NULL)
330      break;
331    length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
332      GrayQuantum,pixels,exception);
333    count=WriteBlob(image,length,pixels);
334    if (count != (ssize_t) length)
335      ThrowWriterException(CorruptImageError,"UnableToWriteImageData");
336    count=WriteBlob(image,(size_t) (-(ssize_t) length) & 0x01,pixels);
337    status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
338      image->rows);
339    if (status == MagickFalse)
340      break;
341  }
342  quantum_info=DestroyQuantumInfo(quantum_info);
343  (void) CloseBlob(image);
344  return(status);
345}
346