不推荐使用“ EAGLContext”的解决方案是什么？ [英] What can be the solution of a deprecated of "EAGLContext"?

问题描述

我想为我的应用程序使用本机过滤器，该功能可以使用，但我想避免从文档中删除的方法。我在整个互联网上搜索，没有解决方案。

I want to use the native filters for my app, the function works but I want to avoid methods that will be removed from the documentation. I search over the whole internet and no solution.

我在整个互联网上进行搜索，但找不到任何解决方案。

I search over the whole internet and i haven't found any solution at my problem.

public func applyFilterTo(image: UIImage, filterEffect: Filter) -> UIImage? {
    guard let cgImage = image.cgImage,
          let openGLContext = EAGLContext(api: .openGLES3) else {
            return nil
    }
    let context = CIContext(eaglContext: openGLContext)
    let ciImage = CIImage(cgImage: cgImage)
    let filter = CIFilter(name: filterEffect.filterName)

    filter?.setValue(ciImage, forKey: kCIInputImageKey)

    if let filterEffectValue = filterEffect.filterEffectValue, let filterEffectValueName = filterEffect.filterEffectValueName {
        filter?.setValue(filterEffectValue, forKey: filterEffectValueName)
    }

    var filteredImage: UIImage?

    if let output = filter?.value(forKey: kCIOutputImageKey) as? CIImage,
        let cgiImageResult = context.createCGImage(output, from: output.extent) {
        filteredImage = UIImage(cgImage: cgiImageResult)
    }

    return filteredImage

}

结果不错，但我担心的是我的应用中的警告无效。谢谢

The result is good but my concern is voiding warnings in my app. Thanks

推荐答案

EAGLContext是OpenGL的一部分，已弃用。您应该在此阶段切换到Metal 。

EAGLContext is part of OpenGL, which is deprecated. You should switch to Metal at this stage.

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