> On 21 Dec 2015, at 1:16 PM, Roland King <r...@rols.org> wrote: > > That bit seems straightforward, you get the CGColorSpace property of the > NSColorSpace object returned by NSColorSpace.availableColorSpacesWithModel() > > But if you want a bitmap to draw in then CGImageRef doesn’t seem like the > right thing, CGBitmapContext takes a CGColorSpace (as long as it’s not an > indexed one). If you need to bridge back to NSBitmapImageRef you should be > able to do that via the CGBitmapContext’s CGImage property which is probably > more efficient than you might fear.
Great, I’m making some headway now. Thanks! I’m not sure why I’d overlooked CGBitmapContextCreate - I guess having used the CGImageCreate stuff in the past I assumed that was the only API that created a raw image buffer in CG. Indeed, the CGBitmapContext kills several birds with one stone, and seems to work efficiently. I don’t need indexed colorspaces, RGB, CMYK and Gray are plenty enough. —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
