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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% K K EEEEE RRRR N N EEEEE L %
% K K E R R NN N E L %
% KKK EEE RRRR N N N EEE L %
% K K E R R N NN E L %
% K K EEEEE R R N N EEEEE LLLLL %
% %
% %
% Write the Morphology Kernel Format %
% %
% Software Design %
% Cristy %
% October 2020 %
% %
% %
% Copyright 1999-2021 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 %
% %
% https://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. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Adapted from http://im.snibgo.com/customim.htm#img2knl.c.
%
*/
/*
Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/blob.h"
#include "MagickCore/blob-private.h"
#include "MagickCore/cache.h"
#include "MagickCore/colorspace.h"
#include "MagickCore/colorspace-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/image.h"
#include "MagickCore/image-private.h"
#include "MagickCore/list.h"
#include "MagickCore/magick.h"
#include "MagickCore/memory_.h"
#include "MagickCore/monitor.h"
#include "MagickCore/monitor-private.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/quantum-private.h"
#include "MagickCore/static.h"
#include "MagickCore/string_.h"
#include "MagickCore/module.h"
/*
Forward declarations.
*/
static MagickBooleanType
WriteKERNELImage(const ImageInfo *,Image *,ExceptionInfo *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r K E R N E L I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RegisterKERNELImage() adds attributes for the KERNEL 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 RegisterKERNELImage method is:
%
% size_t RegisterKERNELImage(void)
%
*/
ModuleExport size_t RegisterKERNELImage(void)
{
MagickInfo
*entry;
entry=AcquireMagickInfo("KERNEL","KERNEL","Morphology Kernel");
entry->encoder=(EncodeImageHandler *) WriteKERNELImage;
entry->flags^=CoderAdjoinFlag;
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r K E R N E L I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnregisterKERNELImage() removes format registrations made by the
% KERNEL module from the list of supported formats.
%
% The format of the UnregisterKERNELImage method is:
%
% UnregisterKERNELImage(void)
%
*/
ModuleExport void UnregisterKERNELImage(void)
{
(void) UnregisterMagickInfo("KERNEL");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e K E R N E L I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WriteKERNELImage() writes an image to a file in KERNEL image format.
%
% The format of the WriteKERNELImage method is:
%
% MagickBooleanType WriteKERNELImage(const ImageInfo *image_info,
% Image *image,ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o image_info: the image info.
%
% o image: The image.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType WriteKERNELImage(const ImageInfo *image_info,
Image *image,ExceptionInfo *exception)
{
char
buffer[MagickPathExtent];
MagickBooleanType
status;
ssize_t
y;
/*
Open output image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickCoreSignature);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
if (status == MagickFalse)
return(status);
/*
Write KERNEL header.
*/
(void) TransformImageColorspace(image,sRGBColorspace,exception);
(void) FormatLocaleString(buffer,MagickPathExtent,"%gx%g:",(double)
image->columns,(double) image->rows);
(void) WriteBlobString(image,buffer);
/*
Convert MIFF to KERNEL raster pixels.
*/
for (y=0; y < (ssize_t) image->rows; y++)
{
const Quantum
*magick_restrict p;
ssize_t
x;
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
if ((x != 0) || (y != 0))
(void) WriteBlobString(image,",");
if ((image->alpha_trait == BlendPixelTrait) &&
(GetPixelAlpha(image,p) < OpaqueAlpha/2))
(void) WriteBlobString(image,"-");
else
{
(void) FormatLocaleString(buffer,MagickPathExtent,"%.*g",
GetMagickPrecision(),QuantumScale*GetPixelIntensity(image,p));
(void) WriteBlobString(image,buffer);
}
p+=GetPixelChannels(image);
}
if (image->previous == (Image *) NULL)
{
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
}
(void) WriteBlobString(image,"\n");
(void) CloseBlob(image);
return(MagickTrue);
}
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