2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
13 % Read Constant Color Image. %
20 % Copyright 1999-2011 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 % http://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.h"
47 #include "MagickCore/color-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/pixel.h"
56 #include "MagickCore/pixel-accessor.h"
57 #include "MagickCore/quantum-private.h"
58 #include "MagickCore/static.h"
59 #include "MagickCore/string_.h"
60 #include "MagickCore/module.h"
63 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
67 % R e a d X C I m a g e %
71 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
73 % ReadXCImage creates a constant image and initializes it to the
74 % X server color as specified by the filename. It allocates the memory
75 % necessary for the new Image structure and returns a pointer to the new
78 % The format of the ReadXCImage method is:
80 % Image *ReadXCImage(const ImageInfo *image_info,ExceptionInfo *exception)
82 % A description of each parameter follows:
86 % o image_info: the image info.
88 % o exception: return any errors or warnings in this structure.
91 static Image *ReadXCImage(const ImageInfo *image_info,ExceptionInfo *exception)
115 Initialize Image structure.
117 assert(image_info != (const ImageInfo *) NULL);
118 assert(image_info->signature == MagickSignature);
119 if (image_info->debug != MagickFalse)
120 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
121 image_info->filename);
122 assert(exception != (ExceptionInfo *) NULL);
123 assert(exception->signature == MagickSignature);
124 image=AcquireImage(image_info,exception);
125 if (image->columns == 0)
127 if (image->rows == 0)
129 (void) CopyMagickString(image->filename,image_info->filename,MaxTextExtent);
130 status=QueryMagickColorCompliance((char *) image_info->filename,AllCompliance,
132 if (status == MagickFalse)
134 image=DestroyImage(image);
135 return((Image *) NULL);
137 image->colorspace=color.colorspace;
138 image->matte=color.matte;
140 SetPacketPixelInfo(image,&color,&pixel);
141 for (y=0; y < (ssize_t) image->rows; y++)
143 q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
144 if (q == (Quantum *) NULL)
146 for (x=0; x < (ssize_t) image->columns; x++)
148 SetPixelPixelInfo(image,&pixel,q);
149 if (image->colorspace == CMYKColorspace)
150 SetPixelBlack(image,pixel.black,q);
151 q+=GetPixelChannels(image);
153 if (SyncAuthenticPixels(image,exception) == MagickFalse)
156 return(GetFirstImageInList(image));
160 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
164 % R e g i s t e r X C I m a g e %
168 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
170 % RegisterXCImage() adds attributes for the XC image format to
171 % the list of supported formats. The attributes include the image format
172 % tag, a method to read and/or write the format, whether the format
173 % supports the saving of more than one frame to the same file or blob,
174 % whether the format supports native in-memory I/O, and a brief
175 % description of the format.
177 % The format of the RegisterXCImage method is:
179 % size_t RegisterXCImage(void)
182 ModuleExport size_t RegisterXCImage(void)
187 entry=SetMagickInfo("XC");
188 entry->decoder=(DecodeImageHandler *) ReadXCImage;
189 entry->adjoin=MagickFalse;
190 entry->format_type=ImplicitFormatType;
191 entry->raw=MagickTrue;
192 entry->endian_support=MagickTrue;
193 entry->description=ConstantString("Constant image uniform color");
194 entry->module=ConstantString("XC");
195 (void) RegisterMagickInfo(entry);
196 entry=SetMagickInfo("CANVAS");
197 entry->decoder=(DecodeImageHandler *) ReadXCImage;
198 entry->adjoin=MagickFalse;
199 entry->format_type=ImplicitFormatType;
200 entry->raw=MagickTrue;
201 entry->endian_support=MagickTrue;
202 entry->description=ConstantString("Constant image uniform color");
203 entry->module=ConstantString("XC");
204 (void) RegisterMagickInfo(entry);
205 return(MagickImageCoderSignature);
209 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
213 % U n r e g i s t e r X C I m a g e %
217 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
219 % UnregisterXCImage() removes format registrations made by the
220 % XC module from the list of supported formats.
222 % The format of the UnregisterXCImage method is:
224 % UnregisterXCImage(void)
227 ModuleExport void UnregisterXCImage(void)
229 (void) UnregisterMagickInfo("CANVAS");
230 (void) UnregisterMagickInfo("XC");