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% Copyright (C) 2003 GraphicsMagick Group
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% Copyright (C) 2002 ImageMagick Studio
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% Copyright 1991-1999 E. I. du Pont de Nemours and Company
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% This program is covered by multiple licenses, which are described in
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% Copyright.txt. You should have received a copy of Copyright.txt with this
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% package; otherwise see http://www.graphicsmagick.org/www/Copyright.html.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% Read Constant Color Image. %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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#include "magick/studio.h"
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#include "magick/blob.h"
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#include "magick/color.h"
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#include "magick/composite.h"
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#include "magick/magick.h"
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#include "magick/utility.h"
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% R e a d X C I m a g e %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% Method ReadXCImage creates a constant image and initializes it to the
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% X server color as specified by the filename. It allocates the memory
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% necessary for the new Image structure and returns a pointer to the new
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% The format of the ReadXCImage method is:
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% Image *ReadXCImage(const ImageInfo *image_info,ExceptionInfo *exception)
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% A description of each parameter follows:
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% o image: Method ReadXCImage returns a pointer to the image after
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% creating it. A null image is returned if there is a memory shortage
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% or if the image cannot be read.
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% o image_info: Specifies a pointer to a ImageInfo structure.
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% o exception: return any errors or warnings in this structure.
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static Image *ReadXCImage(const ImageInfo *image_info,ExceptionInfo *exception)
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Initialize Image structure.
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickSignature);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickSignature);
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image=AllocateImage(image_info);
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if (image->columns == 0)
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(void) strncpy(image->filename,image_info->filename,MaxTextExtent-1);
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status=QueryColorDatabase((char *) image_info->filename,
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&image->background_color,exception);
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return((Image *) NULL);
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if (!AllocateImageColormap(image,1))
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ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,image);
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image->colormap[0]=image->background_color;
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Initialize image pixels to the value of image->background_color
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SetImage(image,image->background_color.opacity);
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% R e g i s t e r X C I m a g e %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% Method RegisterXCImage adds attributes for the XC image format to
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% the list of supported formats. The attributes include the image format
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% tag, a method to read and/or write the format, whether the format
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% supports the saving of more than one frame to the same file or blob,
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% whether the format supports native in-memory I/O, and a brief
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% description of the format.
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% The format of the RegisterXCImage method is:
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% RegisterXCImage(void)
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ModuleExport void RegisterXCImage(void)
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entry=SetMagickInfo("XC");
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entry->decoder=(DecoderHandler) ReadXCImage;
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entry->description=AcquireString("Constant image uniform color");
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entry->module=AcquireString("XC");
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(void) RegisterMagickInfo(entry);
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% U n r e g i s t e r X C I m a g e %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% Method UnregisterXCImage removes format registrations made by the
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% XC module from the list of supported formats.
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% The format of the UnregisterXCImage method is:
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% UnregisterXCImage(void)
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ModuleExport void UnregisterXCImage(void)
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(void) UnregisterMagickInfo("XC");
added
removed
coders/xc.c
