This question is roughly related to this one. I have a SceneKit project in which memory management has been a challenge (yes, even with ARC). By loading images in a very specific way, by using weak...

What APIs do I need to use, and what precautions do I need to take, when writing to an IOSurface in an XPC process that is also being used as the backing store for an MTLTexture in the main applica...

I am facing memory issue in my app for iOS 12 and above versions. IOSurface gradually increases simultaneously in iOS 12.1.1 where as it works fine in iOS 11 versions. I have attached the issue scr...

I am fighting with an internal caching (about 90 MB for 15 mp image ) in CGContextDrawImage/CGDataProviderCopyData functions. Here is the stack-trace in profiler: In all cases, IOSurface is cre...

I'm trying to create an H.264 Compression Session with the data from my screen. I've created a CGDisplayStreamRef instance like so: displayStream = CGDisplayStreamCreateWithDispatchQueue(0, 100, 1...

I'm working on an existing (non app-store) app for a client that uses the IOSurface private framework to do screen captures while in the background. There are a few threads here on SO that outline ...