Re: NSImage TIFFRepresentation crashes
Re: NSImage TIFFRepresentation crashes
- Subject: Re: NSImage TIFFRepresentation crashes
- From: Markus Spoettl <email@hidden>
- Date: Sun, 10 Mar 2013 14:31:09 +0100
On 3/10/13 2:07 PM, Mike Abdullah wrote:
OK, I'll look into that, thanks. Since performance is not really a concern
and if the implementation doesn't have any other weak spots that could
cause legitimate trouble, it's a bit academic, though.
The point of the original question was to find out if -TIFFRepresentation
is "allowed" to crash on special images and if there was a way to predict
such a crash or avoid it.
I think what you're seeing is that any method in the frameworks is allowed to
fail weirdly should you ask of it something that exceeds the available
memory.
From the original exception, I wonder if your user has brought in an image
that is a massive black and white scan. Many, many pixels, but each is only
either black or white, so the overall memory usage is reasonable. Converting
to a TIFF might attempt to use more data per pixel, ballooning the file
size.
I have asked for details on the image in question but haven't heard anything
yet. We we manage to find out what kind of image is was or get our hands on it,
I'll report back here.
Regards
Markus
--
__________________________________________
Markus Spoettl
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