Re: NSImage TIFFRepresentation crashes
Re: NSImage TIFFRepresentation crashes
- Subject: Re: NSImage TIFFRepresentation crashes
- From: Markus Spoettl <email@hidden>
- Date: Sun, 10 Mar 2013 09:05:00 +0100
On 3/10/13 1:55 AM, Mike Abdullah wrote:
> Well that exception suggests you have a truly giant image on your hands.
> Perhaps there's enough memory to do some work with it, but not all.
I was trying to say that the framework appears to be confusing the size. The
image itself is being serialized from and to archives and displayed on screen.
Unfortunately I don't have the data, but I assume it's an "normal" sized image.
> The most important question: what are you actually calling
> -TIFFRepresentation for? In practice it's often a rather inefficient method
> to accomplish your end goal.
I'm using -TIFFRepresentation to produce a PNG representation. The are more
efficient ways to do that, I'm sure, but it generally seems to be working fine:
NSData *tiff = [image TIFFRepresentation];
NSBitmapImageRep *bmprep = [NSBitmapImageRep imageRepWithData:tiff];
NSDictionary *props = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber
numberWithBool:NO], NSImageInterlaced, nil];
NSData *pngData = [bmprep representationUsingType:NSPNGFileType properties:props];
Regards
Markus
--
__________________________________________
Markus Spoettl
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