Fixed filtered twice output

Author: yangKJ

Harbeth.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'Harbeth'
-  s.version          = '1.1.9'
+  s.version          = '1.2.0'
   s.summary          = 'About image and video add filter for metal.'
 
   # This description is used to generate tags and improve search results.

Sources/Basic/Core/TextureLoader.swift

@@ -153,16 +153,18 @@ extension TextureLoader {
     ///   - height: The texture height, must be greater than 0, maximum resolution is 16384.
     ///   - options: Configure other parameters about generating metal textures.
     public static func emptyTexture(width: Int, height: Int, options: [TextureLoader.Option: Any]? = nil) throws -> MTLTexture {
+        let options = options ?? [TextureLoader.Option: Any]()
         var usage: MTLTextureUsage = [.shaderRead, .shaderWrite]
         var pixelFormat = MTLPixelFormat.rgba8Unorm
         var storageMode = MTLStorageMode.shared
+        var allowGPUOptimizedContents = true
         #if os(macOS)
         // Texture Descriptor Validation MTLStorageModeShared not allowed for textures.
         // So macOS need use `managed`.
         storageMode = MTLStorageMode.managed
         #endif
         var sampleCount: Int = 1
-        for (key, value) in (options ?? [TextureLoader.Option: Any]()) {
+        for (key, value) in options {
             switch (key, value) {
             case (.texturePixelFormat, let value as MTLPixelFormat):
                 pixelFormat = value
@@ -172,6 +174,8 @@ extension TextureLoader {
                 storageMode = value
             case (.textureSampleCount, let value as Int):
                 sampleCount = value
+            case (.textureAllowGPUOptimizedContents, let value as Bool):
+                allowGPUOptimizedContents = value
             default:
                 break
             }
@@ -187,6 +191,9 @@ extension TextureLoader {
         descriptor.storageMode = storageMode
         descriptor.sampleCount = sampleCount
         descriptor.textureType = sampleCount > 1 ? .type2DMultisample : .type2D
+        if #available(iOS 12.0, macOS 10.14, *) {
+            descriptor.allowGPUOptimizedContents = allowGPUOptimizedContents
+        }
         guard let texture = Device.device().makeTexture(descriptor: descriptor) else {
             throw HarbethError.makeTexture
         }
@@ -304,4 +311,7 @@ extension TextureLoader.Option {
     /// The number of samples in the texture to create. The default value is 1.
     /// When creating Buffer textures sampleCount must be 1. Implementations may round sample counts up to the next supported value.
     public static let textureSampleCount: TextureLoader.Option = .init(rawValue: 1 << 4)
+    
+    /// Allow GPU-optimization for the contents of this texture. The default value is true.
+    public static let textureAllowGPUOptimizedContents: TextureLoader.Option = .init(rawValue: 1 << 5)
 }

Sources/Basic/Extensions/MTLTexture+Ext.swift

@@ -19,7 +19,11 @@ extension MTLTexture {
 
 public struct MTLTextureCompatible_ {
 
-    public let target: MTLTexture
+    weak var target: MTLTexture!
+    
+    init(target: MTLTexture) {
+        self.target = target
+    }
 
     public var size: MTLSize {
         .init(width: target.width, height: target.height, depth: target.depth)

Sources/Basic/Outputs/Destype.swift

@@ -27,12 +27,6 @@ public protocol Destype {
     /// Asynchronous quickly add filters to sources.
     /// - Parameter complete: The conversion is complete of adding filters to the sources asynchronously.
     func transmitOutput(complete: @escaping (Result<Element, HarbethError>) -> Void)
-    
-    /// Asynchronous convert to texture and add filters.
-    /// - Parameters:
-    ///   - texture: Input metal texture.
-    ///   - complete: The conversion is complete.
-    func filtering(texture: MTLTexture, complete: @escaping (Result<MTLTexture, HarbethError>) -> Void)
 }
 
 extension Destype {
@@ -43,8 +37,7 @@ extension Destype {
 
     public func filtered() -> Element {
         do {
-            let dest = HarbethIO.init(element: element, filters: filters)
-            return try dest.output()
+            return try self.output()
         } catch {
             return element
         }

Sources/Basic/Outputs/HarbethIO.swift

@@ -115,7 +115,7 @@ public typealias BoxxIO<Dest> = HarbethIO<Dest>
         }
     }
 
-    /// Convert to texture and add filters.
+    /// Asynchronous convert to texture and add filters.
     /// - Parameters:
     ///   - texture: Input metal texture.
     ///   - complete: The conversion is complete.

Sources/Basic/Setup/DisplayLink.swift

@@ -9,7 +9,7 @@ import Foundation
 
 #if os(macOS)
 
-#if __MAC_14_0 || __MAC_14_1 || __MAC_14_2
+#if __MAC_14_0 || __MAC_14_1 || __MAC_14_2 || __MAC_14_3 || __MAC_14_4
 import QuartzCore
 public typealias CADisplayLink = QuartzCore.CADisplayLink
 #else