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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% GGGG RRRR AAA Y Y %
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% G R R A A Y Y %
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% G GG RRRR AAAAA Y %
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% G G R R A A Y %
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% GGG R R A A Y %
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% %
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% %
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% Read/Write Raw GRAY 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/channel.h"
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|
#include "MagickCore/colorspace.h"
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|
#include "MagickCore/colorspace-private.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"
|
|
|
#include "MagickCore/monitor-private.h"
|
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|
#include "MagickCore/pixel-accessor.h"
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|
#include "MagickCore/quantum-private.h"
|
|
|
#include "MagickCore/static.h"
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|
|
#include "MagickCore/statistic.h"
|
|
|
#include "MagickCore/string_.h"
|
|
|
#include "MagickCore/module.h"
|
|
|
#include "MagickCore/utility.h"
|
|
|
|
|
|
/*
|
|
|
Forward declarations.
|
|
|
*/
|
|
|
static MagickBooleanType
|
|
|
WriteGRAYImage(const ImageInfo *,Image *,ExceptionInfo *);
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
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|
% %
|
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|
% %
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|
% %
|
|
|
% R e a d G R A Y 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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|
% ReadGRAYImage() reads an image of raw GRAY samples and returns it. It
|
|
|
% allocates the memory necessary for the new Image structure and returns a
|
|
|
% pointer to the new image.
|
|
|
%
|
|
|
% The format of the ReadGRAYImage method is:
|
|
|
%
|
|
|
% Image *ReadGRAYImage(const ImageInfo *image_info,
|
|
|
% ExceptionInfo *exception)
|
|
|
%
|
|
|
% A description of each parameter follows:
|
|
|
%
|
|
|
% o image_info: the image info.
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|
%
|
|
|
% o exception: return any errors or warnings in this structure.
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|
|
%
|
|
|
*/
|
|
|
static Image *ReadGRAYImage(const ImageInfo *image_info,
|
|
|
ExceptionInfo *exception)
|
|
|
{
|
|
|
const void
|
|
|
*stream;
|
|
|
|
|
|
Image
|
|
|
*canvas_image,
|
|
|
*image;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
MagickOffsetType
|
|
|
scene;
|
|
|
|
|
|
QuantumInfo
|
|
|
*quantum_info;
|
|
|
|
|
|
QuantumType
|
|
|
quantum_type;
|
|
|
|
|
|
ssize_t
|
|
|
i;
|
|
|
|
|
|
size_t
|
|
|
length;
|
|
|
|
|
|
ssize_t
|
|
|
count,
|
|
|
y;
|
|
|
|
|
|
unsigned char
|
|
|
*pixels;
|
|
|
|
|
|
/*
|
|
|
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);
|
|
|
image=AcquireImage(image_info,exception);
|
|
|
if ((image->columns == 0) || (image->rows == 0))
|
|
|
ThrowReaderException(OptionError,"MustSpecifyImageSize");
|
|
|
image->colorspace=GRAYColorspace;
|
|
|
if (image_info->interlace != PartitionInterlace)
|
|
|
{
|
|
|
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.rgb[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_info=AcquireQuantumInfo(image_info,canvas_image);
|
|
|
if (quantum_info == (QuantumInfo *) NULL)
|
|
|
{
|
|
|
canvas_image=DestroyImage(canvas_image);
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
}
|
|
|
quantum_type=GrayQuantum;
|
|
|
if (LocaleCompare(image_info->magick,"GRAYA") == 0)
|
|
|
{
|
|
|
quantum_type=GrayAlphaQuantum;
|
|
|
image->alpha_trait=BlendPixelTrait;
|
|
|
canvas_image->alpha_trait=BlendPixelTrait;
|
|
|
}
|
|
|
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;
|
|
|
}
|
|
|
}
|
|
|
count=0;
|
|
|
length=0;
|
|
|
scene=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;
|
|
|
switch (image_info->interlace)
|
|
|
{
|
|
|
case NoInterlace:
|
|
|
default:
|
|
|
{
|
|
|
/*
|
|
|
No interlacing: GGG...
|
|
|
*/
|
|
|
if (scene == 0)
|
|
|
{
|
|
|
length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
}
|
|
|
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,
|
|
|
canvas_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);
|
|
|
SetPixelAlpha(image,OpaqueAlpha,q);
|
|
|
if (image->alpha_trait != UndefinedPixelTrait)
|
|
|
SetPixelAlpha(image,GetPixelAlpha(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);
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
case LineInterlace:
|
|
|
{
|
|
|
static QuantumType
|
|
|
quantum_types[4] =
|
|
|
{
|
|
|
GrayQuantum,
|
|
|
AlphaQuantum
|
|
|
};
|
|
|
|
|
|
/*
|
|
|
Line interlacing: G...G...G...
|
|
|
*/
|
|
|
if (scene == 0)
|
|
|
{
|
|
|
length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum);
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
}
|
|
|
for (y=0; y < (ssize_t) image->extract_info.height; y++)
|
|
|
{
|
|
|
for (i=0; i < (ssize_t) (image->alpha_trait != UndefinedPixelTrait ? 4 : 3); i++)
|
|
|
{
|
|
|
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;
|
|
|
}
|
|
|
quantum_type=quantum_types[i];
|
|
|
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,canvas_image->columns,1,exception);
|
|
|
q=GetAuthenticPixels(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++)
|
|
|
{
|
|
|
switch (quantum_type)
|
|
|
{
|
|
|
case GrayQuantum:
|
|
|
{
|
|
|
SetPixelGray(image,GetPixelGray(canvas_image,p),q);
|
|
|
break;
|
|
|
}
|
|
|
case AlphaQuantum:
|
|
|
{
|
|
|
SetPixelAlpha(image,GetPixelAlpha(canvas_image,p),q);
|
|
|
break;
|
|
|
}
|
|
|
default:
|
|
|
break;
|
|
|
}
|
|
|
p+=GetPixelChannels(canvas_image);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
case PlaneInterlace:
|
|
|
{
|
|
|
/*
|
|
|
Plane interlacing: G...G...G...
|
|
|
*/
|
|
|
if (scene == 0)
|
|
|
{
|
|
|
length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum);
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
}
|
|
|
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,RedQuantum,(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,
|
|
|
canvas_image->columns,1,exception);
|
|
|
q=GetAuthenticPixels(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++)
|
|
|
{
|
|
|
SetPixelGray(image,GetPixelGray(canvas_image,p),q);
|
|
|
p+=GetPixelChannels(canvas_image);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,1,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
if (image->alpha_trait != UndefinedPixelTrait)
|
|
|
{
|
|
|
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,AlphaQuantum,(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,canvas_image->columns,1,
|
|
|
exception);
|
|
|
q=GetAuthenticPixels(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++)
|
|
|
{
|
|
|
SetPixelAlpha(image,GetPixelAlpha(canvas_image,p),q);
|
|
|
p+=GetPixelChannels(canvas_image);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,5,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,6,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
case PartitionInterlace:
|
|
|
{
|
|
|
/*
|
|
|
Partition interlacing: G..., G..., G...
|
|
|
*/
|
|
|
AppendImageFormat("G",image->filename);
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
if (DiscardBlobBytes(image,(MagickSizeType) image->offset) == MagickFalse)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
ThrowFileException(exception,CorruptImageError,
|
|
|
"UnexpectedEndOfFile",image->filename);
|
|
|
break;
|
|
|
}
|
|
|
length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum);
|
|
|
for (i=0; i < (ssize_t) scene; i++)
|
|
|
{
|
|
|
for (y=0; y < (ssize_t) image->extract_info.height; y++)
|
|
|
{
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
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,RedQuantum,(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,
|
|
|
canvas_image->columns,1,exception);
|
|
|
q=GetAuthenticPixels(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);
|
|
|
p+=GetPixelChannels(canvas_image);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,1,5);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
(void) CloseBlob(image);
|
|
|
if (image->alpha_trait != UndefinedPixelTrait)
|
|
|
{
|
|
|
(void) CloseBlob(image);
|
|
|
AppendImageFormat("A",image->filename);
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
length=GetQuantumExtent(canvas_image,quantum_info,AlphaQuantum);
|
|
|
for (i=0; i < (ssize_t) scene; i++)
|
|
|
{
|
|
|
for (y=0; y < (ssize_t) image->extract_info.height; y++)
|
|
|
{
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
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,BlueQuantum,(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,canvas_image->columns,1,exception);
|
|
|
q=GetAuthenticPixels(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++)
|
|
|
{
|
|
|
SetPixelAlpha(image,GetPixelAlpha(canvas_image,p),q);
|
|
|
p+=GetPixelChannels(canvas_image);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
stream=ReadBlobStream(image,length,pixels,&count);
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,4,5);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
(void) CloseBlob(image);
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,5,5);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
if (status == MagickFalse)
|
|
|
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 G R A Y I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% RegisterGRAYImage() adds attributes for the GRAY 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 RegisterGRAYImage method is:
|
|
|
%
|
|
|
% size_t RegisterGRAYImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport size_t RegisterGRAYImage(void)
|
|
|
{
|
|
|
MagickInfo
|
|
|
*entry;
|
|
|
|
|
|
entry=AcquireMagickInfo("GRAY","GRAY","Raw gray samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadGRAYImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteGRAYImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
entry=AcquireMagickInfo("GRAY","GRAYA","Raw gray and alpha samples");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadGRAYImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteGRAYImage;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
entry->flags|=CoderEndianSupportFlag;
|
|
|
(void) RegisterMagickInfo(entry);
|
|
|
return(MagickImageCoderSignature);
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% U n r e g i s t e r G R A Y I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% UnregisterGRAYImage() removes format registrations made by the GRAY module
|
|
|
% from the list of supported formats.
|
|
|
%
|
|
|
% The format of the UnregisterGRAYImage method is:
|
|
|
%
|
|
|
% UnregisterGRAYImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport void UnregisterGRAYImage(void)
|
|
|
{
|
|
|
(void) UnregisterMagickInfo("GRAYA");
|
|
|
(void) UnregisterMagickInfo("GRAY");
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% W r i t e G R A Y I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% WriteGRAYImage() writes an image to a file in the GRAY, GRAYAlpha, or GRAYO
|
|
|
% rasterfile format.
|
|
|
%
|
|
|
% The format of the WriteGRAYImage method is:
|
|
|
%
|
|
|
% MagickBooleanType WriteGRAYImage(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 WriteGRAYImage(const ImageInfo *image_info,
|
|
|
Image *image,ExceptionInfo *exception)
|
|
|
{
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
MagickOffsetType
|
|
|
scene;
|
|
|
|
|
|
QuantumInfo
|
|
|
*quantum_info;
|
|
|
|
|
|
QuantumType
|
|
|
quantum_type;
|
|
|
|
|
|
size_t
|
|
|
imageListLength,
|
|
|
length;
|
|
|
|
|
|
ssize_t
|
|
|
count,
|
|
|
y;
|
|
|
|
|
|
unsigned char
|
|
|
*pixels;
|
|
|
|
|
|
/*
|
|
|
Allocate memory for pixels.
|
|
|
*/
|
|
|
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);
|
|
|
if (image_info->interlace != PartitionInterlace)
|
|
|
{
|
|
|
/*
|
|
|
Open output image file.
|
|
|
*/
|
|
|
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(status);
|
|
|
}
|
|
|
quantum_type=GrayQuantum;
|
|
|
if (LocaleCompare(image_info->magick,"GRAYA") == 0)
|
|
|
quantum_type=GrayAlphaQuantum;
|
|
|
scene=0;
|
|
|
imageListLength=GetImageListLength(image);
|
|
|
do
|
|
|
{
|
|
|
/*
|
|
|
Convert MIFF to GRAY raster pixels.
|
|
|
*/
|
|
|
(void) TransformImageColorspace(image,GRAYColorspace,exception);
|
|
|
if ((LocaleCompare(image_info->magick,"GRAYA") == 0) &&
|
|
|
(image->alpha_trait == UndefinedPixelTrait))
|
|
|
(void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
|
|
|
quantum_info=AcquireQuantumInfo(image_info,image);
|
|
|
if (quantum_info == (QuantumInfo *) NULL)
|
|
|
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
pixels=(unsigned char *) GetQuantumPixels(quantum_info);
|
|
|
switch (image_info->interlace)
|
|
|
{
|
|
|
case NoInterlace:
|
|
|
default:
|
|
|
{
|
|
|
/*
|
|
|
No interlacing: GGG...
|
|
|
*/
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*magick_restrict p;
|
|
|
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
|
|
|
quantum_type,pixels,exception);
|
|
|
count=WriteBlob(image,length,pixels);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
case LineInterlace:
|
|
|
{
|
|
|
/*
|
|
|
Line interlacing: G...G...G...
|
|
|
*/
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*magick_restrict p;
|
|
|
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
|
|
|
GrayQuantum,pixels,exception);
|
|
|
count=WriteBlob(image,length,pixels);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
if (quantum_type == GrayAlphaQuantum)
|
|
|
{
|
|
|
length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
|
|
|
AlphaQuantum,pixels,exception);
|
|
|
count=WriteBlob(image,length,pixels);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
case PlaneInterlace:
|
|
|
{
|
|
|
/*
|
|
|
Plane interlacing: G...G...G...
|
|
|
*/
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*magick_restrict p;
|
|
|
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
|
|
|
GrayQuantum,pixels,exception);
|
|
|
count=WriteBlob(image,length,pixels);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,1,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
if (quantum_type == GrayAlphaQuantum)
|
|
|
{
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*magick_restrict p;
|
|
|
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
|
|
|
AlphaQuantum,pixels,exception);
|
|
|
count=WriteBlob(image,length,pixels);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,5,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
if (image_info->interlace == PartitionInterlace)
|
|
|
(void) CopyMagickString(image->filename,image_info->filename,
|
|
|
MagickPathExtent);
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,6,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
case PartitionInterlace:
|
|
|
{
|
|
|
/*
|
|
|
Partition interlacing: G..., G..., G...
|
|
|
*/
|
|
|
AppendImageFormat("G",image->filename);
|
|
|
status=OpenBlob(image_info,image,scene == 0 ? WriteBinaryBlobMode :
|
|
|
AppendBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(status);
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*magick_restrict p;
|
|
|
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
|
|
|
RedQuantum,pixels,exception);
|
|
|
count=WriteBlob(image,length,pixels);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,1,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
(void) CloseBlob(image);
|
|
|
if (quantum_type == GrayAlphaQuantum)
|
|
|
{
|
|
|
(void) CloseBlob(image);
|
|
|
AppendImageFormat("A",image->filename);
|
|
|
status=OpenBlob(image_info,image,scene == 0 ? WriteBinaryBlobMode :
|
|
|
AppendBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(status);
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*magick_restrict p;
|
|
|
|
|
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
|
|
|
AlphaQuantum,pixels,exception);
|
|
|
count=WriteBlob(image,length,pixels);
|
|
|
if (count != (ssize_t) length)
|
|
|
break;
|
|
|
}
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,5,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
(void) CloseBlob(image);
|
|
|
(void) CopyMagickString(image->filename,image_info->filename,
|
|
|
MagickPathExtent);
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,SaveImageTag,6,6);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
quantum_info=DestroyQuantumInfo(quantum_info);
|
|
|
if (GetNextImageInList(image) == (Image *) NULL)
|
|
|
break;
|
|
|
image=SyncNextImageInList(image);
|
|
|
status=SetImageProgress(image,SaveImagesTag,scene++,imageListLength);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
} while (image_info->adjoin != MagickFalse);
|
|
|
(void) CloseBlob(image);
|
|
|
return(MagickTrue);
|
|
|
}
|
