On 9 Dec 2013, at 5:45 pm, David Duncan <david.dun...@apple.com> wrote:
> If you have a buffer to draw into, then you can easily slice that buffer to > use between multiple graphics contexts, but you will fundamentally have to > draw them all into the source context at the end. I wasn’t able to figure out how to do this, so I haven’t tested to see if it’s any faster. By “slice the buffer”, I assume you mean set up a context on some region of that buffer, but when I tried to do that, CGBitmapContextCreate[WithData] would not accept my bytesPerRow value because it was inconsistent with the ‘width’ value, even though I had calculated the bytesPerRow to be the correct offset anyway. So if you know of a practical way to “slice the buffer”, please do share! —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
