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1 /*
2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 %                                                                             %
4 %                                                                             %
5 %                                                                             %
6 %                                   X   X                                     %
7 %                                    X X                                      %
8 %                                     X                                       %
9 %                                    X X                                      %
10 %                                   X   X                                     %
11 %                                                                             %
12 %                                                                             %
13 %                    Read/Write Image from/to X11 Server.                     %
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/client.h"
46 #include "MagickCore/display.h"
47 #include "MagickCore/exception.h"
48 #include "MagickCore/exception-private.h"
49 #include "MagickCore/image.h"
50 #include "MagickCore/image-private.h"
51 #include "MagickCore/list.h"
52 #include "MagickCore/magick.h"
53 #include "MagickCore/memory_.h"
54 #include "MagickCore/option.h"
55 #include "MagickCore/quantum-private.h"
56 #include "MagickCore/static.h"
57 #include "MagickCore/string_.h"
58 #include "MagickCore/module.h"
59 #include "MagickCore/token.h"
60 #include "MagickCore/utility.h"
61 #include "MagickCore/xwindow.h"
62 #include "MagickCore/xwindow-private.h"
63 
64 /*
65   Forward declarations.
66 */
67 #if defined(MAGICKCORE_X11_DELEGATE)
68 static MagickBooleanType
69   WriteXImage(const ImageInfo *,Image *,ExceptionInfo *);
70 #endif
71 
72 #if defined(MAGICKCORE_X11_DELEGATE)
73 /*
74 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
75 %                                                                             %
76 %                                                                             %
77 %                                                                             %
78 %   R e a d X I m a g e                                                       %
79 %                                                                             %
80 %                                                                             %
81 %                                                                             %
82 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
83 %
84 %  ReadXImage() reads an image from an X window.
85 %
86 %  The format of the ReadXImage method is:
87 %
88 %      Image *ReadXImage(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 */
ReadXImage(const ImageInfo * image_info,ExceptionInfo * exception)97 static Image *ReadXImage(const ImageInfo *image_info,ExceptionInfo *exception)
98 {
99   XImportInfo
100     ximage_info;
101 
102   (void) exception;
103   XGetImportInfo(&ximage_info);
104   ximage_info.screen=IsStringTrue(GetImageOption(image_info,"x:screen"));
105   ximage_info.silent=IsStringTrue(GetImageOption(image_info,"x:silent"));
106   return(XImportImage(image_info,&ximage_info,exception));
107 }
108 #endif
109 
110 /*
111 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
112 %                                                                             %
113 %                                                                             %
114 %                                                                             %
115 %   R e g i s t e r X I m a g e                                               %
116 %                                                                             %
117 %                                                                             %
118 %                                                                             %
119 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
120 %
121 %  RegisterXImage() adds attributes for the X image format to
122 %  the list of supported formats.  The attributes include the image format
123 %  tag, a method to read and/or write the format, whether the format
124 %  supports the saving of more than one frame to the same file or blob,
125 %  whether the format supports native in-memory I/O, and a brief
126 %  description of the format.
127 %
128 %  The format of the RegisterXImage method is:
129 %
130 %      size_t RegisterXImage(void)
131 %
132 */
RegisterXImage(void)133 ModuleExport size_t RegisterXImage(void)
134 {
135   MagickInfo
136     *entry;
137 
138   entry=AcquireMagickInfo("X","X","X Image");
139 #if defined(MAGICKCORE_X11_DELEGATE)
140   entry->decoder=(DecodeImageHandler *) ReadXImage;
141   entry->encoder=(EncodeImageHandler *) WriteXImage;
142 #endif
143   entry->format_type=ImplicitFormatType;
144   (void) RegisterMagickInfo(entry);
145   return(MagickImageCoderSignature);
146 }
147 
148 /*
149 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
150 %                                                                             %
151 %                                                                             %
152 %                                                                             %
153 %   U n r e g i s t e r X I m a g e                                           %
154 %                                                                             %
155 %                                                                             %
156 %                                                                             %
157 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
158 %
159 %  UnregisterXImage() removes format registrations made by the
160 %  X module from the list of supported formats.
161 %
162 %  The format of the UnregisterXImage method is:
163 %
164 %      UnregisterXImage(void)
165 %
166 */
UnregisterXImage(void)167 ModuleExport void UnregisterXImage(void)
168 {
169   (void) UnregisterMagickInfo("X");
170 }
171 
172 /*
173 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
174 %                                                                             %
175 %                                                                             %
176 %                                                                             %
177 %   W r i t e X I m a g e                                                     %
178 %                                                                             %
179 %                                                                             %
180 %                                                                             %
181 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
182 %
183 %  WriteXImage() writes an image to an X server.
184 %
185 %  The format of the WriteXImage method is:
186 %
187 %      MagickBooleanType WriteXImage(const ImageInfo *image_info,
188 %        Image *image,ExceptionInfo *exception)
189 %
190 %  A description of each parameter follows.
191 %
192 %    o image_info: the image info.
193 %
194 %    o image:  The image.
195 %
196 %    o exception: return any errors or warnings in this structure.
197 %
198 */
WriteXImage(const ImageInfo * image_info,Image * image,ExceptionInfo * exception)199 static MagickBooleanType WriteXImage(const ImageInfo *image_info,Image *image,
200   ExceptionInfo *exception)
201 {
202   return(DisplayImages(image_info,image,exception));
203 }
204