coders/inline.c - platform/external/ImageMagick - Gitiles

 /*
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %                  IIIII  N   N  L      IIIII  N   N  EEEEE                   %
 %                    I    NN  N  L        I    NN  N  E                       %
 %                    I    N N N  L        I    N N N  EEE                     %
 %                    I    N  NN  L        I    N  NN  E                       %
 %                  IIIII  N   N  LLLLL  IIIII  N   N  EEEEE                   %
 %                                                                             %
 %                                                                             %
 %                            Read Inline Images                               %
 %                                                                             %
 %                              Software Design                                %
 %                                   Cristy                                    %
 %                                 July 1992                                   %
 %                                                                             %
 %                                                                             %
 %  Copyright 1999-2015 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 "MagickCore/studio.h"
 #include "MagickCore/blob.h"
 #include "MagickCore/blob-private.h"
 #include "MagickCore/client.h"
 #include "MagickCore/constitute.h"
 #include "MagickCore/display.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/option.h"
 #include "MagickCore/quantum-private.h"
 #include "MagickCore/static.h"
 #include "MagickCore/string_.h"
 #include "MagickCore/module.h"
 #include "MagickCore/utility.h"
 #include "MagickCore/xwindow.h"
 #include "MagickCore/xwindow-private.h"

 /*
   Forward declarations.
 */
 static MagickBooleanType
   WriteINLINEImage(const ImageInfo *,Image *,ExceptionInfo *);

 /*
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %   R e a d I N L I N E I m a g e                                             %
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  ReadINLINEImage() reads base64-encoded inlines images.
 %
 %  The format of the ReadINLINEImage method is:
 %
 %      Image *ReadINLINEImage(const ImageInfo *image_info,
 %        ExceptionInfo *exception)
 %
 %  A description of each parameter follows:
 %
 %    o image_info: the image info.
 %
 %    o exception: return any errors or warnings in this structure.
 %
 */
 static Image *ReadINLINEImage(const ImageInfo *image_info,
   ExceptionInfo *exception)
 {
   Image
     *image;

   MagickBooleanType
     status;

   register size_t
     i;

   size_t
     quantum;

   ssize_t
     count;

   unsigned char
     *inline_image;

   /*
     Open image file.
   */
   assert(image_info != (const ImageInfo *) NULL);
   assert(image_info->signature == MagickCoreSignature);
   if (image_info->debug != MagickFalse)
     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
       image_info->filename);
   assert(exception != (ExceptionInfo *) NULL);
   assert(exception->signature == MagickCoreSignature);
   if (LocaleCompare(image_info->magick,"DATA") == 0)
     {
       char
         *filename;

       Image
         *data_image;

       filename=AcquireString("data:");
       (void) ConcatenateMagickString(filename,image_info->filename,
         MagickPathExtent);
       data_image=ReadInlineImage(image_info,filename,exception);
       filename=DestroyString(filename);
       return(data_image);
     }
   image=AcquireImage(image_info,exception);
   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
   if (status == MagickFalse)
     {
       image=DestroyImageList(image);
       return((Image *) NULL);
     }
   quantum=MagickMin((size_t) GetBlobSize(image),MagickMaxBufferExtent);
   if (quantum == 0)
     quantum=MagickMaxBufferExtent;
   inline_image=(unsigned char *) AcquireQuantumMemory(quantum,
     sizeof(*inline_image));
   count=0;
   for (i=0; inline_image != (unsigned char *) NULL; i+=count)
   {
     count=(ssize_t) ReadBlob(image,quantum,inline_image+i);
     if (count <= 0)
       {
         count=0;
         if (errno != EINTR)
           break;
       }
     if (~((size_t) i) < (quantum+1))
       {
         inline_image=(unsigned char *) RelinquishMagickMemory(inline_image);
         break;
       }
     inline_image=(unsigned char *) ResizeQuantumMemory(inline_image,i+count+
       quantum+1,sizeof(*inline_image));
   }
   if (inline_image == (unsigned char *) NULL)
     {
       (void) ThrowMagickException(exception,GetMagickModule(),
         ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename);
       return((Image *) NULL);
     }
   inline_image[i+count]='\0';
   image=DestroyImageList(image);
   image=ReadInlineImage(image_info,(char *) inline_image,exception);
   inline_image=(unsigned char *) RelinquishMagickMemory(inline_image);
   return(image);
 }

 /*
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %   R e g i s t e r I N L I N E I m a g e                                     %
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  RegisterINLINEImage() adds attributes for the INLINE 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 RegisterINLINEImage method is:
 %
 %      size_t RegisterINLINEImage(void)
 %
 */
 ModuleExport size_t RegisterINLINEImage(void)
 {
   MagickInfo
     *entry;

   entry=AcquireMagickInfo("DATA","INLINE","Base64-encoded inline images");
   entry->decoder=(DecodeImageHandler *) ReadINLINEImage;
   entry->encoder=(EncodeImageHandler *) WriteINLINEImage;
   entry->format_type=ImplicitFormatType;
   (void) RegisterMagickInfo(entry);
   entry=AcquireMagickInfo("INLINE","INLINE","Base64-encoded inline images");
   entry->decoder=(DecodeImageHandler *) ReadINLINEImage;
   entry->encoder=(EncodeImageHandler *) WriteINLINEImage;
   entry->format_type=ImplicitFormatType;
   (void) RegisterMagickInfo(entry);
   return(MagickImageCoderSignature);
 }

 /*
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %   U n r e g i s t e r I N L I N E I m a g e                                 %
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  UnregisterINLINEImage() removes format registrations made by the
 %  INLINE module from the list of supported formats.
 %
 %  The format of the UnregisterINLINEImage method is:
 %
 %      UnregisterINLINEImage(void)
 %
 */
 ModuleExport void UnregisterINLINEImage(void)
 {
   (void) UnregisterMagickInfo("INLINE");
   (void) UnregisterMagickInfo("DATA");
 }

 /*
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %   W r i t e I N L I N E I m a g e                                           %
 %                                                                             %
 %                                                                             %
 %                                                                             %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  WriteINLINEImage() writes an image to a file in INLINE format (Base64).
 %
 %  The format of the WriteINLINEImage method is:
 %
 %      MagickBooleanType WriteINLINEImage(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 WriteINLINEImage(const ImageInfo *image_info,
   Image *image,ExceptionInfo *exception)
 {
   char
     *base64,
     message[MagickPathExtent];

   const MagickInfo
     *magick_info;

   Image
     *write_image;

   ImageInfo
     *write_info;

   MagickBooleanType
     status;

   size_t
     blob_length,
     encode_length;

   unsigned char
     *blob;

   /*
     Convert image to base64-encoding.
   */
   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);
   write_info=CloneImageInfo(image_info);
   (void) SetImageInfo(write_info,1,exception);
   if (LocaleCompare(write_info->magick,"INLINE") == 0)
     (void) CopyMagickString(write_info->magick,image->magick,MagickPathExtent);
   magick_info=GetMagickInfo(write_info->magick,exception);
   if ((magick_info == (const MagickInfo *) NULL) ||
       (GetMagickMimeType(magick_info) == (const char *) NULL))
     ThrowWriterException(CorruptImageError,"ImageTypeNotSupported");
   (void) CopyMagickString(image->filename,write_info->filename,
     MagickPathExtent);
   blob_length=2048;
   write_image=CloneImage(image,0,0,MagickTrue,exception);
   if (write_image == (Image *) NULL)
     {
       write_info=DestroyImageInfo(write_info);
       return(MagickTrue);
     }
   blob=(unsigned char *) ImageToBlob(write_info,write_image,&blob_length,
     exception);
   write_image=DestroyImage(write_image);
   write_info=DestroyImageInfo(write_info);
   if (blob == (unsigned char *) NULL)
     return(MagickFalse);
   encode_length=0;
   base64=Base64Encode(blob,blob_length,&encode_length);
   blob=(unsigned char *) RelinquishMagickMemory(blob);
   if (base64 == (char *) NULL)
     ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
   /*
     Write base64-encoded image.
   */
   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
   if (status == MagickFalse)
     {
       base64=DestroyString(base64);
       return(status);
     }
   (void) FormatLocaleString(message,MagickPathExtent,"data:%s;base64,",
     GetMagickMimeType(magick_info));
   (void) WriteBlobString(image,message);
   (void) WriteBlobString(image,base64);
   base64=DestroyString(base64);
   return(MagickTrue);
 }
	/*
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	% %
	% %
	% %
	% IIIII N N L IIIII N N EEEEE %
	% I NN N L I NN N E %
	% I N N N L I N N N EEE %
	% I N NN L I N NN E %
	% IIIII N N LLLLL IIIII N N EEEEE %
	% %
	% %
	% Read Inline Images %
	% %
	% Software Design %
	% Cristy %
	% July 1992 %
	% %
	% %
	% Copyright 1999-2015 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 "MagickCore/studio.h"
	#include "MagickCore/blob.h"
	#include "MagickCore/blob-private.h"
	#include "MagickCore/client.h"
	#include "MagickCore/constitute.h"
	#include "MagickCore/display.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/option.h"
	#include "MagickCore/quantum-private.h"
	#include "MagickCore/static.h"
	#include "MagickCore/string_.h"
	#include "MagickCore/module.h"
	#include "MagickCore/utility.h"
	#include "MagickCore/xwindow.h"
	#include "MagickCore/xwindow-private.h"

	/*
	Forward declarations.
	*/
	static MagickBooleanType
	WriteINLINEImage(const ImageInfo ,Image ,ExceptionInfo *);

	/*
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	% %
	% %
	% %
	% R e a d I N L I N E I m a g e %
	% %
	% %
	% %
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	%
	% ReadINLINEImage() reads base64-encoded inlines images.
	%
	% The format of the ReadINLINEImage method is:
	%
	% Image ReadINLINEImage(const ImageInfo image_info,
	% ExceptionInfo *exception)
	%
	% A description of each parameter follows:
	%
	% o image_info: the image info.
	%
	% o exception: return any errors or warnings in this structure.
	%
	*/
	static Image ReadINLINEImage(const ImageInfo image_info,
	ExceptionInfo *exception)
	{
	Image
	*image;

	MagickBooleanType
	status;

	register size_t
	i;

	size_t
	quantum;

	ssize_t
	count;

	unsigned char
	*inline_image;

	/*
	Open image file.
	*/
	assert(image_info != (const ImageInfo *) NULL);
	assert(image_info->signature == MagickCoreSignature);
	if (image_info->debug != MagickFalse)
	(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
	image_info->filename);
	assert(exception != (ExceptionInfo *) NULL);
	assert(exception->signature == MagickCoreSignature);
	if (LocaleCompare(image_info->magick,"DATA") == 0)
	{
	char
	*filename;

	Image
	*data_image;

	filename=AcquireString("data:");
	(void) ConcatenateMagickString(filename,image_info->filename,
	MagickPathExtent);
	data_image=ReadInlineImage(image_info,filename,exception);
	filename=DestroyString(filename);
	return(data_image);
	}
	image=AcquireImage(image_info,exception);
	status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
	if (status == MagickFalse)
	{
	image=DestroyImageList(image);
	return((Image *) NULL);
	}
	quantum=MagickMin((size_t) GetBlobSize(image),MagickMaxBufferExtent);
	if (quantum == 0)
	quantum=MagickMaxBufferExtent;
	inline_image=(unsigned char *) AcquireQuantumMemory(quantum,
	sizeof(*inline_image));
	count=0;
	for (i=0; inline_image != (unsigned char *) NULL; i+=count)
	{
	count=(ssize_t) ReadBlob(image,quantum,inline_image+i);
	if (count <= 0)
	{
	count=0;
	if (errno != EINTR)
	break;
	}
	if (~((size_t) i) < (quantum+1))
	{
	inline_image=(unsigned char *) RelinquishMagickMemory(inline_image);
	break;
	}
	inline_image=(unsigned char *) ResizeQuantumMemory(inline_image,i+count+
	quantum+1,sizeof(*inline_image));
	}
	if (inline_image == (unsigned char *) NULL)
	{
	(void) ThrowMagickException(exception,GetMagickModule(),
	ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename);
	return((Image *) NULL);
	}
	inline_image[i+count]='\0';
	image=DestroyImageList(image);
	image=ReadInlineImage(image_info,(char *) inline_image,exception);
	inline_image=(unsigned char *) RelinquishMagickMemory(inline_image);
	return(image);
	}

	/*
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	% %
	% %
	% %
	% R e g i s t e r I N L I N E I m a g e %
	% %
	% %
	% %
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	%
	% RegisterINLINEImage() adds attributes for the INLINE 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 RegisterINLINEImage method is:
	%
	% size_t RegisterINLINEImage(void)
	%
	*/
	ModuleExport size_t RegisterINLINEImage(void)
	{
	MagickInfo
	*entry;

	entry=AcquireMagickInfo("DATA","INLINE","Base64-encoded inline images");
	entry->decoder=(DecodeImageHandler *) ReadINLINEImage;
	entry->encoder=(EncodeImageHandler *) WriteINLINEImage;
	entry->format_type=ImplicitFormatType;
	(void) RegisterMagickInfo(entry);
	entry=AcquireMagickInfo("INLINE","INLINE","Base64-encoded inline images");
	entry->decoder=(DecodeImageHandler *) ReadINLINEImage;
	entry->encoder=(EncodeImageHandler *) WriteINLINEImage;
	entry->format_type=ImplicitFormatType;
	(void) RegisterMagickInfo(entry);
	return(MagickImageCoderSignature);
	}

	/*
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	% %
	% %
	% %
	% U n r e g i s t e r I N L I N E I m a g e %
	% %
	% %
	% %
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	%
	% UnregisterINLINEImage() removes format registrations made by the
	% INLINE module from the list of supported formats.
	%
	% The format of the UnregisterINLINEImage method is:
	%
	% UnregisterINLINEImage(void)
	%
	*/
	ModuleExport void UnregisterINLINEImage(void)
	{
	(void) UnregisterMagickInfo("INLINE");
	(void) UnregisterMagickInfo("DATA");
	}

	/*
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	% %
	% %
	% %
	% W r i t e I N L I N E I m a g e %
	% %
	% %
	% %
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	%
	% WriteINLINEImage() writes an image to a file in INLINE format (Base64).
	%
	% The format of the WriteINLINEImage method is:
	%
	% MagickBooleanType WriteINLINEImage(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 WriteINLINEImage(const ImageInfo *image_info,
	Image image,ExceptionInfo exception)
	{
	char
	*base64,
	message[MagickPathExtent];

	const MagickInfo
	*magick_info;

	Image
	*write_image;

	ImageInfo
	*write_info;

	MagickBooleanType
	status;

	size_t
	blob_length,
	encode_length;

	unsigned char
	*blob;

	/*
	Convert image to base64-encoding.
	*/
	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);
	write_info=CloneImageInfo(image_info);
	(void) SetImageInfo(write_info,1,exception);
	if (LocaleCompare(write_info->magick,"INLINE") == 0)
	(void) CopyMagickString(write_info->magick,image->magick,MagickPathExtent);
	magick_info=GetMagickInfo(write_info->magick,exception);
	if ((magick_info == (const MagickInfo *) NULL) \|\|
	(GetMagickMimeType(magick_info) == (const char *) NULL))
	ThrowWriterException(CorruptImageError,"ImageTypeNotSupported");
	(void) CopyMagickString(image->filename,write_info->filename,
	MagickPathExtent);
	blob_length=2048;
	write_image=CloneImage(image,0,0,MagickTrue,exception);
	if (write_image == (Image *) NULL)
	{
	write_info=DestroyImageInfo(write_info);
	return(MagickTrue);
	}
	blob=(unsigned char *) ImageToBlob(write_info,write_image,&blob_length,
	exception);
	write_image=DestroyImage(write_image);
	write_info=DestroyImageInfo(write_info);
	if (blob == (unsigned char *) NULL)
	return(MagickFalse);
	encode_length=0;
	base64=Base64Encode(blob,blob_length,&encode_length);
	blob=(unsigned char *) RelinquishMagickMemory(blob);
	if (base64 == (char *) NULL)
	ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
	/*
	Write base64-encoded image.
	*/
	status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
	if (status == MagickFalse)
	{
	base64=DestroyString(base64);
	return(status);
	}
	(void) FormatLocaleString(message,MagickPathExtent,"data:%s;base64,",
	GetMagickMimeType(magick_info));
	(void) WriteBlobString(image,message);
	(void) WriteBlobString(image,base64);
	base64=DestroyString(base64);
	return(MagickTrue);
	}