On 27/07/2012, at 10:36 PM, Vojtěch Meluzín wrote: > I need to create and manipulate an image, which I could access directly > from memory and at the same time be able to use system drawing functions > for optimization. On Windows I can create a memory bitmap, but it seems it > is on possible on Mac, or is it? Note that I don't want to do any > conversions from handles to memory etc., the whole point is optimization.
What have you tried? There are all sorts of ways you can manipulate images, here's one: [NSBitmapImageRep initWithBitMapDataPlanes:.....]; by passing existing pointer to memory in bitPlanes, it will wrap that memory in the necessary bitmap structure rather than create a new one. there are also some similar functions in CGImage (though it's more work to wrap an existing block of memory), and the vImage framework for image processing. --Graham _______________________________________________ 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
