/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% 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"
/*
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% %
% %
% %
% 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");
}
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