On 16 Aug 2012, at 04:41, Marco S Hyman <m...@snafu.org> wrote: > On Aug 15, 2012, at 8:24 PM, Jens Alfke <j...@mooseyard.com> wrote: > >>> The images are typically 25 MB Canon 7D raw image files that have >>> been pre-alloc'ed and initWithContentsOfFile: >> >> NSImage doesn't actually load the image pixels until it needs to. Merely >> initializing an instance won't do it. > > That matches what I'm seeing. The code didn't originally > alloc and init the image until just prior to dropping it in > the image well. I tried a pre alloc/init on the off chance it > would make things faster. Nope. > >> That said, NSImage has changed a lot over time (especially its caching) and >> I'm not sure what the best way is to preload an image these days. > > For this application the camera preview jpg inside of the raw image > would be of good enough quality. I'm looking at what it would take > to extract that.
Easy, CGImageSource. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
