/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% X X CCCC %
% X X C %
% X C %
% X X C %
% X X CCCC %
% %
% %
% Read Constant Color Image. %
% %
% Software Design %
% Cristy %
% July 1992 %
% %
% %
% Copyright 1999-2016 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/cache.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/colorspace-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/pixel.h"
#include "magick/pixel-accessor.h"
#include "magick/pixel-private.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
index,
*indexes;
MagickBooleanType
status;
MagickPixelPacket
color;
PixelPacket
pixel;
register ssize_t
x;
register PixelPacket
*q;
ssize_t
y;
/*
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=AcquireImage(image_info);
if (image->columns == 0)
image->columns=1;
if (image->rows == 0)
image->rows=1;
status=SetImageExtent(image,image->columns,image->rows);
if (status == MagickFalse)
{
InheritException(exception,&image->exception);
return(DestroyImageList(image));
}
(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);
}
(void) SetImageColorspace(image,color.colorspace);
image->matte=color.matte;
(void) ResetMagickMemory(&pixel,0,sizeof(pixel));
index=0;
SetPixelPacket(image,&color,&pixel,&index);
for (y=0; y < (ssize_t) image->rows; y++)
{
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
*q++=pixel;
if (image->colorspace == CMYKColorspace)
{
indexes=GetAuthenticIndexQueue(image);
for (x=0; x < (ssize_t) image->columns; x++)
SetPixelIndex(indexes+x,index);
}
if (SyncAuthenticPixels(image,exception) == 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:
%
% size_t RegisterXCImage(void)
%
*/
ModuleExport size_t RegisterXCImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("XC");
entry->decoder=(DecodeImageHandler *) ReadXCImage;
entry->adjoin=MagickFalse;
entry->format_type=ImplicitFormatType;
entry->raw=MagickTrue;
entry->endian_support=MagickTrue;
entry->description=ConstantString("Constant image uniform color");
entry->module=ConstantString("XC");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("CANVAS");
entry->decoder=(DecodeImageHandler *) ReadXCImage;
entry->adjoin=MagickFalse;
entry->format_type=ImplicitFormatType;
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("CANVAS");
(void) UnregisterMagickInfo("XC");
}