LinuxQuestions.org - Error : constitute.c: ReadImage: Assertion `image

Thanks for the reply.

Sorry for not giving proper details.

My program uses LibMagick library. This library internally linked with constitute.c.

constitute.c is come up with LibMAgick source.

I installed LibMagick in /usr/local/lib.

Please look following source from constitute.c

MagickExport Image *ReadImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
char
filename[MaxTextExtent];

DelegateInfo
*delegate_info;

Image
*image,
*next;

ImageInfo
*clone_info;

MagickInfo
*magick_info;

register char
*p;

/*
Determine image type from filename prefix or suffix (e.g. image.jpg).
*/
assert(image_info != (ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(image_info->filename != (char *) NULL);
assert(exception != (ExceptionInfo *) NULL);[/B]
GetExceptionInfo(exception);
clone_info=CloneImageInfo(image_info);
if (*clone_info->filename == '@')
return(ReadImages(clone_info,exception));
SetImageInfo(clone_info,False,exception);
(void) strcpy(filename,clone_info->filename);
/*
Call appropriate image reader based on image type.
*/
image=(Image *) NULL;
magick_info=(MagickInfo *) GetMagickInfo(clone_info->magick,exception);
if ((magick_info != (MagickInfo *) NULL) &&
(magick_info->decoder !=
(Image *(*)(const ImageInfo *,ExceptionInfo *)) NULL))
{
clone_info->client_data=magick_info->client_data;
image=(magick_info->decoder)(clone_info,exception);
}
else
{
unsigned int
status;

delegate_info=GetDelegateInfo(clone_info->magick,(char *) NULL,exception);
if (delegate_info == (DelegateInfo *) NULL)
{
if (IsAccessible(clone_info->filename))
ThrowException(exception,MissingDelegateWarning,
"no delegate for this image format",clone_info->filename);
else
ThrowException(exception,FileOpenWarning,"Unable to open file",
clone_info->filename);
DestroyImageInfo(clone_info);
return((Image *) NULL);
}
/*
Let our decoding delegate process the image.
*/
image=AllocateImage(clone_info);
if (image == (Image *) NULL)
{
DestroyImageInfo(clone_info);
return((Image *) NULL);
}
(void) strcpy(image->filename,clone_info->filename);
TemporaryFilename(clone_info->filename);
status=
InvokeDelegate(clone_info,image,clone_info->magick,(char *) NULL);
ThrowException(exception,image->exception.severity,
image->exception.reason,image->exception.description);
DestroyImages(image);
image=(Image *) NULL;
if (status != False)
clone_info->temporary=True;
SetImageInfo(clone_info,False,exception);
magick_info=(MagickInfo *) GetMagickInfo(clone_info->magick,exception);
if ((magick_info == (MagickInfo *) NULL) ||
(magick_info->decoder ==
(Image *(*)(const ImageInfo *,ExceptionInfo *)) NULL))
{
if (IsAccessible(clone_info->filename))
ThrowException(exception,MissingDelegateWarning,
"no delegate for this image format",clone_info->filename);
else
ThrowException(exception,FileOpenWarning,"Unable to open file",
clone_info->filename);
DestroyImageInfo(clone_info);
return((Image *) NULL);
}
image=(magick_info->decoder)(clone_info,exception);
}
if (clone_info->temporary)
{
(void) remove(clone_info->filename);
clone_info->temporary=False;
if (image != (Image *) NULL)
(void) strcpy(image->filename,filename);
}
if (image == (Image *) NULL)
{
DestroyImageInfo(clone_info);
return(image);
}
if (image->temporary)
(void) remove(clone_info->filename);
if (IsSubimage(clone_info->tile,False))
{
int
count,
offset,
quantum;

Image
*subimages;

unsigned int
last,
target;

/*
User specified subimages (e.g. image.miff[1,3-5,7-6,2]).
*/
subimages=(Image *) NULL;
target=atoi(clone_info->tile);
for (p=clone_info->tile; *p != '\0'; p+=Max(offset,1))
{
offset=0;
count=sscanf(p,"%u%n-%u%n",&target,&offset,&last,&offset);
if (count == 0)
continue;
if (count == 1)
last=target;
quantum=target > last ? -1 : 1;
for ( ; target != (last+quantum); target+=quantum)
{
for (next=image; next; next=next->next)
{
Image
*clone_image;

if (next->scene != target)
continue;
/*
Clone this subimage.
*/
clone_image=CloneImage(next,0,0,True,exception);
if (clone_image == (Image *) NULL)
break;
if (subimages == (Image *) NULL)
{
subimages=clone_image;
continue;
}
subimages->next=clone_image;
subimages->next->previous=subimages;
subimages=subimages->next;
}
}
}
DestroyImages(image);
image=(Image *) NULL;
if (subimages == (Image *) NULL)
ThrowException(exception,OptionWarning,
"Subimage specification returns no images",clone_info->filename);
while (subimages->previous != (Image *) NULL)
subimages=subimages->previous;
image=subimages;
}
else
if ((clone_info->subrange != 0) && (image->next != (Image *) NULL))
{
int
retain;

/*
User specified subimages (e.g. image.miff[1]).
*/
for ( ; ; )
{
retain=(image->scene >= clone_info->subimage) &&
(image->scene <= (clone_info->subimage+clone_info->subrange-1));
if (image->next != (Image *) NULL)
{
image=image->next;
if (!retain)
DestroyImage(image->previous);
continue;
}
if (image->previous != (Image *) NULL)
{
image=image->previous;
if (!retain)
DestroyImage(image->next);
break;
}
if (!retain)
{
DestroyImage(image);
image=(Image *) NULL;
}
break;
}
if (image == (Image *) NULL)
{
ThrowException(exception,OptionWarning,
"Subimage specification returns no images",clone_info->filename);
DestroyImageInfo(clone_info);
return((Image *) NULL);
}
while (image->previous != (Image *) NULL)
image=image->previous;
}
if (image->status)
{
ThrowException(exception,CorruptImageWarning,
"An error has occurred reading file",clone_info->filename);
DestroyImageInfo(clone_info);
return((Image *) NULL);
}
DestroyBlobInfo(&image->blob);
for (next=image; next; next=next->next)
{
GetBlobInfo(&next->blob);
next->taint=False;
(void) strcpy(next->magick_filename,clone_info->filename);
if (image->temporary)
(void) strcpy(next->filename,clone_info->filename);
if (next->magick_columns == 0)
next->magick_columns=next->columns;
if (next->magick_rows == 0)
next->magick_rows=next->rows;
}
DestroyImageInfo(clone_info);
return(image);
}

I am getting an error (runtime ) in the blocked code.