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mpr.c
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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M M PPPP RRRR %
% MM MM P P R R %
% M M M PPPP RRRR %
% M M P R R %
% M M P R R %
% %
% %
% Read/Write the Magick Persistent Registry. %
% %
% 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 "MagickCore/studio.h"
#include "MagickCore/blob.h"
#include "MagickCore/blob-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/magick.h"
#include "MagickCore/memory_.h"
#include "MagickCore/registry.h"
#include "MagickCore/quantum-private.h"
#include "MagickCore/static.h"
#include "MagickCore/string_.h"
#include "MagickCore/module.h"
/*
Forward declarations.
*/
static MagickBooleanType
WriteMPRImage(const ImageInfo *,Image *,ExceptionInfo *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d M P R I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadMPRImage() reads a Magick Persistent Registry image as a blob from
% memory. It allocates the memory necessary for the new Image structure and
% returns a pointer to the new image.
%
% The format of the ReadMPRImage method is:
%
% Image *ReadMPRImage(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 *ReadMPRImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
Image
*image;
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);
image=(Image *) GetImageRegistry(ImageRegistryType,image_info->filename,
exception);
if (image != (Image *) NULL)
(void) SyncImageSettings(image_info,image,exception);
return(image);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r M P R I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RegisterMPRImage() adds attributes for the MPR 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 RegisterMPRImage method is:
%
% size_t RegisterMPRImage(void)
%
*/
ModuleExport size_t RegisterMPRImage(void)
{
MagickInfo
*entry;
entry=AcquireMagickInfo("MPR","MPR","Magick Persistent Registry");
entry->decoder=(DecodeImageHandler *) ReadMPRImage;
entry->encoder=(EncodeImageHandler *) WriteMPRImage;
entry->flags^=CoderAdjoinFlag;
entry->format_type=ImplicitFormatType;
entry->flags|=CoderStealthFlag;
(void) RegisterMagickInfo(entry);
entry=AcquireMagickInfo("MPR","MPRI","Magick Persistent Registry");
entry->decoder=(DecodeImageHandler *) ReadMPRImage;
entry->encoder=(EncodeImageHandler *) WriteMPRImage;
entry->flags^=CoderAdjoinFlag;
entry->format_type=ImplicitFormatType;
entry->flags|=CoderStealthFlag;
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r M P R I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnregisterMPRImage() removes format registrations made by the
% MPR module from the list of supported formats.
%
% The format of the UnregisterMPRImage method is:
%
% UnregisterMPRImage(void)
%
*/
ModuleExport void UnregisterMPRImage(void)
{
(void) UnregisterMagickInfo("MPRI");
(void) UnregisterMagickInfo("MPR");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e M P R I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WriteMPRImage() writes an image into the Magick Persistent Registry
% image as a blob from memory. It allocates the memory necessary for the
% new Image structure and returns a pointer to the new image.
%
% The format of the WriteMPRImage method is:
%
% MagickBooleanType WriteMPRImage(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 WriteMPRImage(const ImageInfo *image_info,Image *image,
ExceptionInfo *exception)
{
MagickBooleanType
status;
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
magick_unreferenced(image_info);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
status=SetImageRegistry(ImageRegistryType,image->filename,image,exception);
return(status);
}