On 22 Sep 2009, at 06:18, Roland King wrote:
I hadn't seen CIFilter, no, that might have been a good avenue to
explore however I think that's not available on the phone (and this
is for the phone even though I didn't explicitly state that earlier,
apologies). So I'll have to use something a bit more primitive.
I think perhaps a bitmap context is what I may want
CIFilter would be ideal, I think, but if you need to work on an
environment without it then I think BravoBug Software (whoever that
is) was right; you want to grab the data with the -bitmapData method
and manipulate it directly yourself.
Of course, that means that you must support any pixel format (and
endianness) issues that result, but it does mean you can do what you
please with the data.
Using a bitmap context IMO is a red herring... I don't see how it
helps you to do what you need, and even if you were to misuse such a
thing (e.g. drawing rectangles to fill individual pixels), it'd be
horribly slow by comparison to direct image manipulation I think.
Kind regards,
Alastair.
--
http://alastairs-place.net
_______________________________________________
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:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
