Merge pull request #39 from griotspeak/master

update ciimage and nsimage logging

Author: Harlan Haskins

PlaygroundLogger/PlaygroundLogger/CustomLoggable/CoreImage/CIImage+CustomOpaqueLoggable.swift

@@ -28,6 +28,7 @@ extension CIImage: CustomOpaqueLoggable {
             #if os(macOS)
                 let imageRep = NSCIImageRep(ciImage: self)
                 let image = NSImage(size: imageRep.size)
+                image.addRepresentation(imageRep)
             #elseif os(iOS) || os(tvOS)
                 let image = UIImage(ciImage: self)
             #endif

PlaygroundLogger/PlaygroundLogger/OpaqueRepresentations/AppKit/NSImage+OpaqueImageRepresentable.swift

@@ -34,7 +34,7 @@
 
         func encodeImage(into encoder: LogEncoder, withFormat format: LogEncoder.Format) throws {
             guard let bitmapRep = self.bestBitmapRepresentation else {
-                if size == .zero {
+                if (size == .zero) || self.representations.isEmpty  {
                     // If we couldn't get a bitmap representation because the image was empty, encode empty PNG data.
                     encoder.encode(number: 0)
                     return