> On Mar 15, 2017, at 11:07 AM, Nevin Brackett-Rozinsky via swift-users > <swift-users@swift.org> wrote: > > Ideally I’d like to create the bitmap image without having to allocate a > second buffer. The sole purpose of the Float array is for creating this > image, so I’d like to directly use its bytes as the pixels data. I expect > this will involve some Unsafe[…] APIs in Swift, though I don’t know exactly > how.
AFAIK there aren’t any pixmap formats that use floats. If you want to produce ARGB pixels, then emit your data in that format, i.e. as a [UInt8]. No unsafe stuff needed. > And yes, I am on an Apple platform. Despite reading boatloads of Core > Graphics documentation, I still can’t make heads or tails out of how to turn > a pre-existing array into the backing data for a bitmap image. This part is > only Swift-related in the sense that I am trying to do it in Swift, so if > there’s a better place to ask/learn about it I’d appreciate being pointed > there. Either Apple’s developer forums, or the cocoa-dev mailing list hosted at http://lists.apple.com <http://lists.apple.com/>. —Jens
_______________________________________________ swift-users mailing list swift-users@swift.org https://lists.swift.org/mailman/listinfo/swift-users
