- Biggest change: when we apply the watermark on a background thread, don't capture self (turn most of the related instance methods into class methods) - Don't call mbglMapSnapshotter->snapshot from a user-provided queue, since it's an asynchronous call anyway and starting it on the user's queue requires capturing self.
Darwin
The code in the Darwin platform targets Apple platforms but is not specific to iOS or macOS. This code is not distributed as an SDK in itself, but is required by the Mapbox iOS SDK and Mapbox macOS SDK.
These files depend on the Foundation and Core Foundation frameworks but do not depend on iOS- or macOS–specific frameworks, such as UIKit or AppKit. Any non-cross-platform code is guarded by TargetConditionals.h macros.