Separate some logic out of main app

1 files changed, 19 insertions, 0 deletions

diff --git a/Captura/Data/GifRenderer.swift b/Captura/Data/GifRenderer.swift
new file mode 100644
index 0000000..208d7db
--- /dev/null
+++ b/Captura/Data/GifRenderer.swift
@@ -0,0 +1,19 @@
+import UniformTypeIdentifiers
+import SwiftUI
+import CoreGraphics
+
+struct GifRenderer {
+  static func render(_ images: [CGImage], at fps: Int, to url: URL) async {
+    let framedelay = String(format: "%.3f", 1.0 / Double(fps))
+    let fileProperties = [kCGImagePropertyGIFDictionary as String: [kCGImagePropertyGIFLoopCount as String: 0]]
+    let gifProperties = [kCGImagePropertyGIFDictionary as String: [kCGImagePropertyGIFUnclampedDelayTime as String: framedelay]]
+    let cfURL = url as CFURL
+    if let destination = CGImageDestinationCreateWithURL(cfURL, UTType.gif.identifier as CFString, images.count, nil) {
+      CGImageDestinationSetProperties(destination, fileProperties as CFDictionary?)
+      for image in images {
+        CGImageDestinationAddImage(destination, image, gifProperties as CFDictionary?)
+      }
+      CGImageDestinationFinalize(destination)
+    }
+  }
+}