iOS 메탈 스위프트 newComputePipelineStateWithFunction이 작동하지 않습니다.

Question

저는 Swift에서 Metal로 시작하여 GPU에서 병렬 컴퓨팅을 시도하기 시작했습니다. 특히 newComputePipelineStateWithFunction과 관련된 문제가 있습니다. Apple's Documentation for Data-Parallel Compute Processing과 같은 여러 사이트를 검토했지만 오류가 너무 많이 발생합니다.

여기에 나는 현재지고있어 오류 발생 :

Incorrect argument label in call (have '_:error:', expected '_:completionHandler:') 

나는 완료 핸들러로 "오류"를 교체하려고하지만 너무 거기에 어려움을 겪고 있었다. 미리 감사드립니다. 여기에 내 코드입니다 :

import UIKit 
import Metal 

class ViewController: UIViewController { 

    var device: MTLDevice! = nil 
    var defaultLibrary: MTLLibrary! = nil 
    var thefunc: MTLFunction! = nil 
    var pipelineState: MTLComputePipelineState! 
    var commandQueue: MTLCommandQueue! = nil 

    override func viewDidLoad() { 
     super.viewDidLoad() 
     // Do any additional setup after loading the view, typically from a nib. 

     setupMetal() 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 



    func setupMetal() 
    { 
     // Our default MTLDevice 
     device = MTLCreateSystemDefaultDevice() 
     defaultLibrary = device.newDefaultLibrary() 
     commandQueue = device.newCommandQueue() 

     // Define the kernel function 
     let kernelFunction: MTLFunction = defaultLibrary.newFunctionWithName("particleRendererShader")! 

     // Define the pipeline state 
     let pipelineState: MTLComputePipelineState = device.newComputePipelineStateWithFunction(kernelFunction, error: nil) 

     // Define the command buffer 
     let commandBuffer: MTLCommandBuffer = commandQueue.commandBuffer() 

     // Define the command encoder 
     let commandEncoder: MTLComputeCommandEncoder = commandBuffer.computeCommandEncoder() 
     commandEncoder.setComputePipelineState(pipelineState) 



     // thefunc = library.newFunctionWithName("filter_main"); 
     // filterState = device.newComputePipelineStateWithFunction(thefunc, error: nil); 
     // let kernelFunction = library.newFunctionWithName("filter_main") 
     // pipelineState = device.newComputePipelineStateWithFunction(kernelFunction!, error: nil) 



     // do { 
     //  try pipelineState = device.newComputePipelineStateWithDescriptor(pipelineStateDescriptor) 
     // } catch _ { 
     //  print("Failed to create pipeline state, error") 
     // } 

    } 

} 

Answer 1

난 당신이 필요하다고 생각 :

device.newComputePipelineStateWithFunction(function) { (state:MTLComputePipelineState?, error:NSError?) in 

    }