/*

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%                         MagickCore Artifact Methods                         %

%                                                                             %

%                              Software Design                                %

%                                   Cristy                                    %

%                                 March 2000                                  %

%                                                                             %

%                                                                             %

%  Copyright @ 1999 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.                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%

%

*/

/*

  Include declarations.

*/

#include "MagickCore/studio.h"

#include "MagickCore/artifact.h"

#include "MagickCore/cache.h"

#include "MagickCore/color.h"

#include "MagickCore/compare.h"

#include "MagickCore/constitute.h"

#include "MagickCore/draw.h"

#include "MagickCore/effect.h"

#include "MagickCore/exception.h"

#include "MagickCore/exception-private.h"

#include "MagickCore/fx.h"

#include "MagickCore/fx-private.h"

#include "MagickCore/gem.h"

#include "MagickCore/geometry.h"

#include "MagickCore/image.h"

#include "MagickCore/layer.h"

#include "MagickCore/list.h"

#include "MagickCore/memory_.h"

#include "MagickCore/monitor.h"

#include "MagickCore/montage.h"

#include "MagickCore/option.h"

#include "MagickCore/profile.h"

#include "MagickCore/quantum.h"

#include "MagickCore/resource_.h"

#include "MagickCore/splay-tree.h"

#include "MagickCore/signature-private.h"

#include "MagickCore/statistic.h"

#include "MagickCore/string_.h"

#include "MagickCore/token.h"

#include "MagickCore/utility.h"

#include "MagickCore/xml-tree.h"

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   C l o n e I m a g e A r t i f a c t s                                     %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  CloneImageArtifacts() clones all image artifacts to another image.

%

%  This will not delete any existing artifacts that may be present!

%

%  The format of the CloneImageArtifacts method is:

%

%      MagickBooleanType CloneImageArtifacts(Image *image,

%        const Image *clone_image)

%

%  A description of each parameter follows:

%

%    o image: the image, to receive the cloned artifacts.

%

%    o clone_image: the source image for artifacts to clone.

%

*/

typedef char

  *(*CloneKeyFunc)(const char *),

  *(*CloneValueFunc)(const char *);

static inline void *CloneArtifactKey(void *key)

{

  return((void *) ((CloneKeyFunc) ConstantString)((const char *) key));

}

static inline void *CloneArtifactValue(void *value)

{

  return((void *) ((CloneValueFunc) ConstantString)((const char *) value));

}

MagickExport MagickBooleanType CloneImageArtifacts(Image *image,

  const Image *clone_image)

{

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  assert(clone_image != (const Image *) NULL);

  assert(clone_image->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    {

      (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

      (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",

        clone_image->filename);

    }

  if (clone_image->artifacts != (void *) NULL)

    {

      if (image->artifacts != (void *) NULL)

        DestroyImageArtifacts(image);

      image->artifacts=CloneSplayTree((SplayTreeInfo *) clone_image->artifacts,

        CloneArtifactKey,CloneArtifactValue);

    }

  return(MagickTrue);

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   D e f i n e I m a g e A r t i f a c t                                     %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  DefineImageArtifact() associates an assignment string of the form

%  "key=value" with per-image artifact. It is equivalent to

%  SetImageArtifact().

%

%  The format of the DefineImageArtifact method is:

%

%      MagickBooleanType DefineImageArtifact(Image *image,

%        const char *artifact)

%

%  A description of each parameter follows:

%

%    o image: the image.

%

%    o artifact: the image artifact.

%

*/

MagickExport MagickBooleanType DefineImageArtifact(Image *image,

  const char *artifact)

{

  char

    key[MagickPathExtent],

    value[MagickPathExtent];

  char

    *p;

  assert(image != (Image *) NULL);

  assert(artifact != (const char *) NULL);

  (void) CopyMagickString(key,artifact,MagickPathExtent-1);

  for (p=key; *p != '\0'; p++)

    if (*p == '=')

      break;

  *value='\0';

  if (*p == '=')

    (void) CopyMagickString(value,p+1,MagickPathExtent);

  *p='\0';

  return(SetImageArtifact(image,key,value));

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   D e l e t e I m a g e A r t i f a c t                                     %

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%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  DeleteImageArtifact() deletes an image artifact.

%

%  The format of the DeleteImageArtifact method is:

%

%      MagickBooleanType DeleteImageArtifact(Image *image,const char *artifact)

%

%  A description of each parameter follows:

%

%    o image: the image.

%

%    o artifact: the image artifact.

%

*/

MagickExport MagickBooleanType DeleteImageArtifact(Image *image,

  const char *artifact)

{

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

  if (image->artifacts == (void *) NULL)

    return(MagickFalse);

  return(DeleteNodeFromSplayTree((SplayTreeInfo *) image->artifacts,artifact));

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   D e s t r o y I m a g e A r t i f a c t s                                 %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  DestroyImageArtifacts() destroys all artifacts and associated memory

%  attached to the given image.

%

%  The format of the DestroyImageArtifacts method is:

%

%      void DestroyImageArtifacts(Image *image)

%

%  A description of each parameter follows:

%

%    o image: the image.

%

*/

MagickExport void DestroyImageArtifacts(Image *image)

{

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

  if (image->artifacts != (void *) NULL)

    image->artifacts=(void *) DestroySplayTree((SplayTreeInfo *)

      image->artifacts);

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   G e t I m a g e A r t i f a c t                                           %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  GetImageArtifact() gets a value associated with an image artifact.

%  If the requested artifact is NULL return the first artifact, to

%  prepare to iterate over all artifacts.

%

%  The returned string is a constant string in the tree and should NOT be

%  freed by the caller.

%

%  The format of the GetImageArtifact method is:

%

%      const char *GetImageArtifact(const Image *image,const char *key)

%

%  A description of each parameter follows:

%

%    o image: the image.

%

%    o key: the key.

%

*/

MagickExport const char *GetImageArtifact(const Image *image,

  const char *artifact)

{

  const char

    *p;

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

  p=(const char *) NULL;

  if (image->artifacts != (void *) NULL)

    {

      if (artifact == (const char *) NULL)

        return((const char *) GetRootValueFromSplayTree((SplayTreeInfo *)

          image->artifacts));

      p=(const char *) GetValueFromSplayTree((SplayTreeInfo *) image->artifacts,

        artifact);

      if (p != (const char *) NULL)

        return(p);

    }

  if ((image->image_info != (ImageInfo *) NULL) &&

      (image->image_info->options != (void *) NULL))

    p=(const char *) GetValueFromSplayTree((SplayTreeInfo *)

      image->image_info->options,artifact);

  return(p);

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   G e t N e x t I m a g e A r t i f a c t                                   %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  GetNextImageArtifact() gets the next image artifact value.

%

%  The format of the GetNextImageArtifact method is:

%

%      char *GetNextImageArtifact(const Image *image)

%

%  A description of each parameter follows:

%

%    o image: the image.

%

*/

MagickExport const char *GetNextImageArtifact(const Image *image)

{

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

  if (image->artifacts == (void *) NULL)

    return((const char *) NULL);

  return((const char *) GetNextKeyInSplayTree(

   (SplayTreeInfo *) image->artifacts));

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   R e m o v e I m a g e A r t i f a c t                                     %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  RemoveImageArtifact() removes an artifact from the image and returns its

%  value.

%

%  In this case the ConstantString() value returned should be freed by the

%  caller when finished.

%

%  The format of the RemoveImageArtifact method is:

%

%      char *RemoveImageArtifact(Image *image,const char *artifact)

%

%  A description of each parameter follows:

%

%    o image: the image.

%

%    o artifact: the image artifact.

%

*/

MagickExport char *RemoveImageArtifact(Image *image,const char *artifact)

{

  char

    *value;

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

  if (image->artifacts == (void *) NULL)

    return((char *) NULL);

  value=(char *) RemoveNodeFromSplayTree((SplayTreeInfo *) image->artifacts,

    artifact);

  return(value);

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   R e s e t I m a g e A r t i f a c t I t e r a t o r                       %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  ResetImageArtifactIterator() resets the image artifact iterator.  Use it

%  in conjunction with GetNextImageArtifact() to iterate over all the values

%  associated with an image artifact.

%

%  Alternatively you can use GetImageArtifact() with a NULL artifact field to

%  reset the iterator and return the first artifact.

%

%  The format of the ResetImageArtifactIterator method is:

%

%      ResetImageArtifactIterator(Image *image)

%

%  A description of each parameter follows:

%

%    o image: the image.

%

*/

MagickExport void ResetImageArtifactIterator(const Image *image)

{

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

  if (image->artifacts == (void *) NULL)

    return;

  ResetSplayTreeIterator((SplayTreeInfo *) image->artifacts);

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   S e t I m a g e A r t i f a c t                                           %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  SetImageArtifact() sets a key-value pair in the image artifact namespace.

%  Artifacts differ from properties.  Properties are public and are generally

%  exported to an external image format if the format supports it.  Artifacts

%  are private and are utilized by the internal ImageMagick API to modify the

%  behavior of certain algorithms.

%

%  The format of the SetImageArtifact method is:

%

%      MagickBooleanType SetImageArtifact(Image *image,const char *artifact,

%        const char *value)

%

%  A description of each parameter follows:

%

%    o image: the image.

%

%    o artifact: the image artifact key.

%

%    o value: the image artifact value.

%

*/

MagickExport MagickBooleanType SetImageArtifact(Image *image,

  const char *artifact,const char *value)

{

  MagickBooleanType

    status;

  assert(image != (Image *) NULL);

  assert(image->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);

  /*

    Create tree if needed - specify how key,values are to be freed.

  */

  if (image->artifacts == (void *) NULL)

    image->artifacts=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,

      RelinquishMagickMemory);

  /*

    Delete artifact if NULL --  empty string values are valid!,

  */

  if (value == (const char *) NULL)

    return(DeleteImageArtifact(image,artifact));

  /*

    Add artifact to splay-tree.

  */

  status=AddValueToSplayTree((SplayTreeInfo *) image->artifacts,

    ConstantString(artifact),ConstantString(value));

  return(status);

}