/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % X X CCCC % % X X C % % X C % % X X C % % X X CCCC % % % % % % Read Constant Color Image. % % % % Software Design % % John Cristy % % July 1992 % % % % % % Copyright 1999-2007 ImageMagick Studio LLC, a non-profit organization % % dedicated to making software imaging solutions freely available. % % % % You may not use this file except in compliance with the License. You may % % obtain a copy of the License at % % % % http://www.imagemagick.org/script/license.php % % % % Unless required by applicable law or agreed to in writing, software % % distributed under the License is distributed on an "AS IS" BASIS, % % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % % See the License for the specific language governing permissions and % % limitations under the License. % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % */ /* Include declarations. */ #include "magick/studio.h" #include "magick/blob.h" #include "magick/blob-private.h" #include "magick/color.h" #include "magick/color-private.h" #include "magick/exception.h" #include "magick/exception-private.h" #include "magick/image.h" #include "magick/image-private.h" #include "magick/list.h" #include "magick/magick.h" #include "magick/memory_.h" #include "magick/quantum-private.h" #include "magick/static.h" #include "magick/string_.h" #include "magick/module.h" /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d X C I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadXCImage creates a constant image and initializes it to the % X server color as specified by the filename. It allocates the memory % necessary for the new Image structure and returns a pointer to the new % image. % % The format of the ReadXCImage method is: % % Image *ReadXCImage(const ImageInfo *image_info,ExceptionInfo *exception) % % A description of each parameter follows: % % o image: The image. % % o image_info: The image info. % % o exception: return any errors or warnings in this structure. % */ static Image *ReadXCImage(const ImageInfo *image_info,ExceptionInfo *exception) { Image *image; IndexPacket *indexes; MagickBooleanType status; MagickPixelPacket color; long y; register long x; register PixelPacket *q; /* Initialize Image structure. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); image=AllocateImage(image_info); if (image->columns == 0) image->columns=1; if (image->rows == 0) image->rows=1; (void) CopyMagickString(image->filename,image_info->filename,MaxTextExtent); status=QueryMagickColor((char *) image_info->filename,&color,exception); if (status == MagickFalse) { image=DestroyImage(image); return((Image *) NULL); } image->colorspace=color.colorspace; image->matte=color.matte; if ((image->colorspace == RGBColorspace) && (image->matte == MagickFalse)) { if (AllocateImageColormap(image,1) == MagickFalse) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); (void) QueryColorDatabase((char *) image_info->filename, &image->background_color,exception); image->colormap[0]=image->background_color; color.index=0.0; } if (SetImageExtent(image,0,0) == MagickFalse) { InheritException(exception,&image->exception); return(DestroyImageList(image)); } for (y=0; y < (long) image->rows; y++) { q=GetImagePixels(image,0,y,image->columns,1); if (q == (PixelPacket *) NULL) break; indexes=GetIndexes(image); for (x=0; x < (long) image->columns; x++) { q->red=RoundToQuantum(color.red); q->green=RoundToQuantum(color.green); q->blue=RoundToQuantum(color.blue); if (image->matte) q->opacity=RoundToQuantum(color.opacity); if ((image->storage_class == PseudoClass) || (image->colorspace == CMYKColorspace)) indexes[x]=(IndexPacket) RoundToQuantum(color.index); q++; } if (SyncImagePixels(image) == MagickFalse) break; } return(GetFirstImageInList(image)); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e g i s t e r X C I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % RegisterXCImage() adds attributes for the XC image format to % the list of supported formats. The attributes include the image format % tag, a method to read and/or write the format, whether the format % supports the saving of more than one frame to the same file or blob, % whether the format supports native in-memory I/O, and a brief % description of the format. % % The format of the RegisterXCImage method is: % % unsigned long RegisterXCImage(void) % */ ModuleExport unsigned long RegisterXCImage(void) { MagickInfo *entry; entry=SetMagickInfo("XC"); entry->decoder=(DecodeImageHandler *) ReadXCImage; entry->adjoin=MagickFalse; entry->raw=MagickTrue; entry->endian_support=MagickTrue; entry->description=ConstantString("Constant image uniform color"); entry->module=ConstantString("XC"); (void) RegisterMagickInfo(entry); return(MagickImageCoderSignature); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % U n r e g i s t e r X C I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % UnregisterXCImage() removes format registrations made by the % XC module from the list of supported formats. % % The format of the UnregisterXCImage method is: % % UnregisterXCImage(void) % */ ModuleExport void UnregisterXCImage(void) { (void) UnregisterMagickInfo("XC"); }