platform-ios/RainbowPlanet/Pods/EFQRCode/Source/UIImage+.swift

//
//  UIImage+.swift
//  EFQRCode
//
//  Created by EyreFree on 2017/4/9.
//
//  Copyright (c) 2017 EyreFree <eyrefree@eyrefree.org>
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.

#if os(iOS) || os(tvOS) || os(watchOS)
import UIKit

#if os(iOS) || os(tvOS)
import CoreImage
#endif

public extension UIImage {

    #if os(iOS) || os(tvOS)
    func toCIImage() -> CIImage? {
        return CIImage(image: self)
    }
    #endif

    func toCGImage() -> CGImage? {
        #if os(watchOS)
        return cgImage
        #else
        return toCIImage()?.toCGImage()
        #endif
    }
}
#endif