Merge pull request #1 from TrueMax/testbranch

Testbranch to main

Author: BigAppleMax

Package.swift

@@ -20,9 +20,6 @@ let package = Package(
         // Targets can depend on other targets in this package, and on products in packages this package depends on.
         .target(
             name: "iOSIntPackage",
-            dependencies: []),
-        .testTarget(
-            name: "iOSIntPackageTests",
-            dependencies: ["iOSIntPackage"])
+            dependencies: [])
     ]
 )

Sources/iOSIntPackage/ImageProcessor.swift

@@ -13,6 +13,7 @@ public struct ImageProcessor {
 
     public init() {}
 
+    // применение фильтра к изображению в главном потоке, не требует явного вызова DispatchQueue.main при работе с UI
     public func processImage(
         sourceImage: UIImage,
         filter: ColorFilter,
@@ -24,6 +25,18 @@ public struct ImageProcessor {
             handler: completion)
     }
 
+    // применение фильтра к изображению в параллельном потоке, требует явного вызова DispatchQueue.main при работе с UI
+    public func processImageAsync(
+        sourceImage: UIImage,
+        filter: ColorFilter,
+        completion: @escaping (CGImage?) -> Void
+    ) {
+        applyFilterAsync(
+            filter: filter,
+            image: sourceImage,
+            handler: completion)
+    }
+    
     private func applyFilter(
         filter: ColorFilter,
         image: UIImage,
@@ -46,4 +59,29 @@ public struct ImageProcessor {
         ) else { fatalError("Error creating output image") }
         handler(UIImage(cgImage: outputImage))
     }
+    
+    private func applyFilterAsync(
+        filter: ColorFilter,
+        image: UIImage,
+        handler: @escaping (CGImage?) -> Void
+    ) {
+        DispatchQueue.global(qos: .userInitiated).async {
+            let context = CIContext()
+            guard let source = CIImage(image: image) else { fatalError("Error creating source image") }
+            var params = filter.parameters
+            params[ColorFilter.imageKey] = source
+            guard let filter = CIFilter(
+                name: filter.filterName,
+                parameters: params
+            ) else { fatalError("Error creating filter") }
+            
+            guard let filteredImage = filter.outputImage else { fatalError("Error filtering image") }
+            
+            guard let outputImage = context.createCGImage(
+                filteredImage,
+                from: filteredImage.extent
+            ) else { fatalError("Error creating output image") }
+            handler(outputImage)
+        }
+    }
 }

Sources/iOSIntPackage/Images.swift

@@ -0,0 +1,37 @@
+//
+// File.swift
+// 
+// 
+// Created by Maxim Abakumov on 2021. 01. 04.
+//
+// Copyright © 2020, Maxim Abakumov. MIT License.
+//
+
+import UIKit
+
+public struct Images {
+    
+    public static var checkmark: UIImage {
+        return getPdfImage(by: "checkmark")
+    }
+    
+    public static var sunset: UIImage {
+        return getPdfImage(by: "sunset")
+    }
+    
+    public static var mountain: UIImage {
+        return getPdfImage(by: "mountain")
+    }
+    
+    private static func getPdfImage(by name: String) -> UIImage {
+        
+        guard let image = UIImage(
+                named: name,
+                in: Bundle.module,
+                compatibleWith: nil
+        ) else {
+            fatalError("Error retrieving image from path")
+        }
+        return image
+    }
+}

Sources/iOSIntPackage/Media.xcassets/mountain.imageset/Contents.json

@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "filename" : "matterhorn_sm.pdf",
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Sources/iOSIntPackage/Media.xcassets/mountain.imageset/matterhorn_sm.pdf

@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "filename" : "sunset.pdf",
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}