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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% RRRR AAA W W %
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% R R A A W W %
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% RRRR AAAAA W W W %
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% R R A A WW WW %
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% R R A A W W %
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% %
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% %
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% Read/Write RAW Image Format %
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% %
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% Software Design %
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% Cristy %
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% July 1992 %
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% %
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% %
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% Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% https://imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%
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*/
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/*
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Include declarations.
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*/
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#include "MagickCore/studio.h"
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#include "MagickCore/blob.h"
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#include "MagickCore/blob-private.h"
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#include "MagickCore/cache.h"
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#include "MagickCore/colorspace.h"
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#include "MagickCore/constitute.h"
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#include "MagickCore/exception.h"
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#include "MagickCore/exception-private.h"
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#include "MagickCore/image.h"
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#include "MagickCore/image-private.h"
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#include "MagickCore/list.h"
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#include "MagickCore/magick.h"
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#include "MagickCore/memory_.h"
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#include "MagickCore/monitor.h"
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#include "MagickCore/monitor-private.h"
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#include "MagickCore/pixel-accessor.h"
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#include "MagickCore/quantum-private.h"
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#include "MagickCore/quantum-private.h"
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#include "MagickCore/static.h"
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#include "MagickCore/statistic.h"
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#include "MagickCore/string_.h"
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#include "MagickCore/module.h"
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WriteRAWImage(const ImageInfo *,Image *,ExceptionInfo *);
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/*
|
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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|
% R e a d R A W I m a g e %
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% %
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% %
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% %
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|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% ReadRAWImage() reads an image of raw samples and returns it. It allocates
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% the memory necessary for the new Image structure and returns a pointer to
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% the new image.
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%
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% The format of the ReadRAWImage method is:
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%
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% Image *ReadRAWImage(const ImageInfo *image_info,ExceptionInfo *exception)
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%
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% A description of each parameter follows:
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%
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% o image_info: the image info.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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static Image *ReadRAWImage(const ImageInfo *image_info,ExceptionInfo *exception)
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|
{
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const void
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*stream;
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Image
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*canvas_image,
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*image;
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MagickBooleanType
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status;
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MagickOffsetType
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scene;
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QuantumInfo
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*quantum_info;
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QuantumType
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quantum_type;
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size_t
|
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|
length;
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|
ssize_t
|
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|
count,
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y;
|
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|
unsigned char
|
|
|
*pixels;
|
|
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/*
|
|
|
Open image file.
|
|
|
*/
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|
|
assert(image_info != (const ImageInfo *) NULL);
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|
|
assert(image_info->signature == MagickCoreSignature);
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|
|
if (image_info->debug != MagickFalse)
|
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
|
|
|
image_info->filename);
|
|
|
assert(exception != (ExceptionInfo *) NULL);
|
|
|
assert(exception->signature == MagickCoreSignature);
|
|
|
image=AcquireImage(image_info,exception);
|
|
|
if ((image->columns == 0) || (image->rows == 0))
|
|
|
ThrowReaderException(OptionError,"MustSpecifyImageSize");
|
|
|
status=SetImageExtent(image,image->columns,image->rows,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(DestroyImageList(image));
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
image=DestroyImageList(image);
|
|
|
return((Image *) NULL);
|
|
|
}
|
|
|
if (DiscardBlobBytes(image,(MagickSizeType) image->offset) == MagickFalse)
|
|
|
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
|
|
|
image->filename);
|
|
|
/*
|
|
|
Create virtual canvas to support cropping (i.e. image.gray[100x100+10+20]).
|
|
|
*/
|
|
|
canvas_image=CloneImage(image,image->extract_info.width,1,MagickFalse,
|
|
|
exception);
|
|
|
if (canvas_image == (Image *) NULL)
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
(void) SetImageVirtualPixelMethod(canvas_image,BlackVirtualPixelMethod,
|
|
|
exception);
|
|
|
quantum_type=GrayQuantum;
|
|
|
quantum_info=AcquireQuantumInfo(image_info,canvas_image);
|
|
|
if (quantum_info == (QuantumInfo *) NULL)
|
|
|
{
|
|
|
canvas_image=DestroyImage(canvas_image);
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
}
|
|
|
pixels=GetQuantumPixels(quantum_info);
|
|
|
if (image_info->number_scenes != 0)
|
|
|
while (image->scene < image_info->scene)
|
|
|
{
|
|
|
/*
|
|
|
Skip to next image.
|
|
|
*/
|
|
|
image->scene++;
|
|
|
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
scene=0;
|
|
|
count=0;
|
|
|
length=0;
|
|
|
status=MagickTrue;
|
|
|
stream=NULL;
|
|
|
do
|
|
|
{
|
|
|
/*
|
|
|
Read pixels to virtual canvas image then push to image.
|
|
|
*/
|
|
|
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
|
|
|
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
|
|
|
break;
|
|
|
status=SetImageExtent(image,image->columns,image->rows,exception);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
if (scene == 0)
|
|
|
{
|
|
|
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
for (y=0; y < (ssize_t) image->extract_info.height; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*magick_restrict p;
|
|
|
|
|
|
Quantum
|
|
|
*magick_restrict q;
|
|
|
|
|
|
ssize_t
|
|
|
x;
|
|
|
|
|
|
if (count != (ssize_t) length)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
|
|
|
image->filename);
|
|
|
break;
|
|
|
}
|
|
|
q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,quantum_info,
|
|
|
quantum_type,(unsigned char *) stream,exception);
|
|
|
if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
|
|
|
break;
|
|
|
if (((y-image->extract_info.y) >= 0) &&
|
|
|
((y-image->extract_info.y) < (ssize_t) image->rows))
|
|
|
{
|
|
|
p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
|
|
|
image->columns,1,exception);
|
|
|
q=QueueAuthenticPixels(image,0,y-image->extract_info.y,image->columns,
|
|
|
1,exception);
|
|
|
if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
SetPixelRed(image,GetPixelRed(canvas_image,p),q);
|
|
|
SetPixelGreen(image,GetPixelGreen(canvas_image,p),q);
|
|
|
SetPixelBlue(image,GetPixelBlue(canvas_image,p),q);
|
|
|
p+=GetPixelChannels(canvas_image);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
SetQuantumImageType(image,quantum_type);
|
|
|
/*
|
|
|
Proceed to next image.
|
|
|
*/
|
|
|
if (image_info->number_scenes != 0)
|
|
|
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
|
|
|
break;
|
|
|
if (count == (ssize_t) length)
|
|
|
{
|
|
|
/*
|
|
|
Allocate next image structure.
|
|
|
*/
|
|
|
AcquireNextImage(image_info,image,exception);
|
|
|
if (GetNextImageInList(image) == (Image *) NULL)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
break;
|
|
|
}
|
|
|
image=SyncNextImageInList(image);
|
|
|
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
|
|
|
GetBlobSize(image));
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
scene++;
|
|
|
} while (count == (ssize_t) length);
|
|
|
quantum_info=DestroyQuantumInfo(quantum_info);
|
|
|
canvas_image=DestroyImage(canvas_image);
|
|
|
(void) CloseBlob(image);
|
|
|
if (status == MagickFalse)
|
|
|
return(DestroyImageList(image));
|
|
|
return(GetFirstImageInList(image));
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e g i s t e r R A W I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% RegisterRAWImage() adds attributes for the RAW 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 RegisterRAWImage method is:
|
|
|
%
|
|
|
% size_t RegisterRAWImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport size_t RegisterRAWImage(void)
|
|
|
{
|
|
|
MagickInfo
|
|
|
*entry;
|
|
|
|
|
|
entry=AcquireMagickInfo("RAW","R","Raw red samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("RAW","C","Raw cyan samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("RAW","G","Raw green samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("RAW","M","Raw magenta samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("RAW","B","Raw blue samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("RAW","Y","Raw yellow samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("RAW","A","Raw alpha samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("RAW","O","Raw opacity samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("RAW","K","Raw black samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadRAWImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteRAWImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
entry->format_type=ImplicitFormatType;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
return(MagickImageCoderSignature);
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% U n r e g i s t e r R A W I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% UnregisterRAWImage() removes format registrations made by the RAW module
|
|
|
% from the list of supported formats.
|
|
|
%
|
|
|
% The format of the UnregisterRAWImage method is:
|
|
|
%
|
|
|
% UnregisterRAWImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport void UnregisterRAWImage(void)
|
|
|
{
|
|
|
(void) UnregisterMagickInfo("R");
|
|
|
(void) UnregisterMagickInfo("C");
|
|
|
(void) UnregisterMagickInfo("G");
|
|
|
(void) UnregisterMagickInfo("M");
|
|
|
(void) UnregisterMagickInfo("B");
|
|
|
(void) UnregisterMagickInfo("Y");
|
|
|
(void) UnregisterMagickInfo("A");
|
|
|
(void) UnregisterMagickInfo("O");
|
|
|
(void) UnregisterMagickInfo("K");
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% W r i t e R A W I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% WriteRAWImage() writes an image to a file as raw intensity values.
|
|
|
%
|
|
|
% The format of the WriteRAWImage method is:
|
|
|
%
|
|
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% MagickBooleanType WriteRAWImage(const ImageInfo *image_info,
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% Image *image,ExceptionInfo *exception)
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%
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% A description of each parameter follows.
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%
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% o image_info: the image info.
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%
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% o image: The image.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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static MagickBooleanType WriteRAWImage(const ImageInfo *image_info,Image *image,
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ExceptionInfo *exception)
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{
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MagickOffsetType
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scene;
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QuantumInfo
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*quantum_info;
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QuantumType
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quantum_type;
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MagickBooleanType
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status;
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const Quantum
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*p;
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size_t
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imageListLength,
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length;
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ssize_t
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count,
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y;
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unsigned char
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*pixels;
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/*
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Open output image file.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickCoreSignature);
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assert(image != (Image *) NULL);
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assert(image->signature == MagickCoreSignature);
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if (image->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickCoreSignature);
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status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
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if (status == MagickFalse)
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return(status);
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switch (*image->magick)
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{
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case 'A':
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case 'a':
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{
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quantum_type=AlphaQuantum;
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break;
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}
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case 'B':
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case 'b':
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{
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quantum_type=BlueQuantum;
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break;
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}
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case 'C':
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case 'c':
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{
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quantum_type=CyanQuantum;
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if (image->colorspace == CMYKColorspace)
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break;
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ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
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}
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case 'g':
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case 'G':
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{
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quantum_type=GreenQuantum;
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break;
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}
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case 'I':
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case 'i':
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{
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quantum_type=IndexQuantum;
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break;
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}
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case 'K':
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case 'k':
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{
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quantum_type=BlackQuantum;
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if (image->colorspace == CMYKColorspace)
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break;
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ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
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}
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case 'M':
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case 'm':
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{
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quantum_type=MagentaQuantum;
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if (image->colorspace == CMYKColorspace)
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break;
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ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
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}
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case 'o':
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case 'O':
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{
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quantum_type=OpacityQuantum;
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break;
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}
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case 'R':
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case 'r':
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{
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quantum_type=RedQuantum;
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break;
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}
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case 'Y':
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case 'y':
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{
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quantum_type=YellowQuantum;
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if (image->colorspace == CMYKColorspace)
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break;
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ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
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}
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default:
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{
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quantum_type=GrayQuantum;
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break;
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}
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}
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scene=0;
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imageListLength=GetImageListLength(image);
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do
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{
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/*
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Convert image to RAW raster pixels.
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*/
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quantum_info=AcquireQuantumInfo(image_info,image);
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if (quantum_info == (QuantumInfo *) NULL)
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ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
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pixels=(unsigned char *) GetQuantumPixels(quantum_info);
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for (y=0; y < (ssize_t) image->rows; y++)
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{
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p=GetVirtualPixels(image,0,y,image->columns,1,exception);
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if (p == (const Quantum *) NULL)
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break;
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length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
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quantum_type,pixels,exception);
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count=WriteBlob(image,length,pixels);
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if (count != (ssize_t) length)
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break;
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if (image->previous == (Image *) NULL)
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{
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status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
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image->rows);
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if (status == MagickFalse)
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break;
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}
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}
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quantum_info=DestroyQuantumInfo(quantum_info);
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if (GetNextImageInList(image) == (Image *) NULL)
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break;
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image=SyncNextImageInList(image);
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status=SetImageProgress(image,SaveImagesTag,scene++,imageListLength);
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if (status == MagickFalse)
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break;
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} while (image_info->adjoin != MagickFalse);
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(void) CloseBlob(image);
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return(MagickTrue);
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}
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