I am getting unsupported parameter combination CGBitmap error with swift
Just in case somebody is running into the same problem. The snippet below finally works. let colorSpace:CGColorSpace = CGColorSpaceCreateDeviceRGB() let bitmapInfo = CGBitmapInfo(CGImageAlphaInfo.PremultipliedLast.rawValue) let context = CGBitmapContextCreate(nil, UInt(rect.size.width), UInt(rect.size.height), 8, 0, colorSpace, bitmapInfo) It generates a 32 bit RGBA context in swift