> The problem is that if you do this in a naive way, with a single huge pixmap,
> you will have poor locality of reference. Once you get to 1024 RGBA pixels
> across, every scan-line will occupy its own memory page. So any operation
> that crosses lots of scan lines but only uses a small fractio
On Mar 2, 2012, at 11:05 AM, Marco Tabini wrote:
> My first instinct is to use a memory-mapped file (e.g.: using NSMutableData)
> to hold the data while I work on it, but I worry that it will be very slow
> and that I'm missing a much simpler solution.
I don’t think you can get around the need
Hi Everyone,
I find myself in the situation of having to manipulate and display a few very
large images in an app running on iOS (potentially in the tens of megapixels at
24 bits/pixel), and I am trying to figure out what the correct pattern for
doing so is. I've Googled for solutions, but the
