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/*
% Copyright (C) 2010 - 2012 GraphicsMagick Group
%
% This program is covered by multiple licenses, which are described in
% Copyright.txt. You should have received a copy of Copyright.txt with this
% package; otherwise see http://www.graphicsmagick.org/www/Copyright.html.
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/blob.h"
#include "magick/describe.h"
#include "magick/log.h"
#include "magick/magick.h"
#include "magick/tempfile.h"
#include "magick/utility.h"
/*
Forward declaractions.
*/
static unsigned int
WriteINFOImage(const ImageInfo *,Image *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r I N F O I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Method RegisterINFOImage adds attributes for the INFO 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 RegisterINFOImage method is:
%
% RegisterINFOImage(void)
%
*/
ModuleExport void RegisterINFOImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("INFO");
entry->encoder=(EncoderHandler) WriteINFOImage;
entry->description="Image descriptive information and statistics";
entry->module="INFO";
entry->extension_treatment=IgnoreExtensionTreatment;
(void) RegisterMagickInfo(entry);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r I N F O I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Method UnregisterINFOImage removes format registrations made by the
% INFO module from the list of supported formats.
%
% The format of the UnregisterINFOImage method is:
%
% UnregisterINFOImage(void)
%
*/
ModuleExport void UnregisterINFOImage(void)
{
(void) UnregisterMagickInfo("INFO");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e I N F O I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WriteINFOImage() writes image descriptive info to stdout.
%
% The format of the WriteINFOImage method is:
%
% MagickPassFail WriteINFOImage(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows.
%
% o image_info: The image info.
%
% o image: The image.
%
%
*/
static MagickPassFail
WriteINFOImage(const ImageInfo *image_info,Image *image)
{
MagickPassFail
status;
FILE
*file;
Image
*list_entry;
char
temporary_filename[MaxTextExtent];
const char
*format;
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
/*
Obtain optional 'identify' style output specification.
*/
format=AccessDefinition(image_info,"info","format");
if (format != (char *) NULL)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"info:format=\"%s\"",format);
/*
Open blob.
*/
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFail)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
/*
Allocate and open a temporary file to write output to.
*/
temporary_filename[0]='\0';
if ((file=GetBlobFileHandle(image)) == (FILE *) NULL)
{
if(!AcquireTemporaryFileName(temporary_filename))
ThrowWriterException(FileOpenError,UnableToCreateTemporaryFile,image);
if ((file=fopen(temporary_filename,"w")) == (FILE *) NULL)
{
(void) LiberateTemporaryFile(temporary_filename);
ThrowWriterException(FileOpenError,UnableToCreateTemporaryFile,image);
}
}
list_entry=image;
while (list_entry != (Image *) NULL)
{
/*
Avoid convert style output syntax by restoring original filename.
*/
(void) strlcpy(list_entry->filename,list_entry->magick_filename,
sizeof(list_entry->filename));
/*
Describe image.
*/
if (format != (char *) NULL)
{
char
*text;
text=TranslateText(image_info,list_entry,format);
if (text != (char *) NULL)
{
(void) fputs(text,file);
(void) fputs("\n",file);
MagickFreeMemory(text);
}
}
else
{
if ((status=DescribeImage(list_entry,file,image_info->verbose))
== MagickFail)
break;
}
list_entry=GetNextImageInList(list_entry);
}
if ('\0' != temporary_filename[0])
{
/*
Close temporary file.
*/
(void) fclose(file);
/*
Send content of temporary file to blob stream.
*/
if (WriteBlobFile(image,temporary_filename) == MagickFail)
status=MagickFail;
(void) LiberateTemporaryFile(temporary_filename);
}
status &= CloseBlob(image);
return status;
}
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