OpenEXR support

README.md

@@ -142,6 +142,7 @@ __Supported image formats:__
 - TIFF
 - BMP
 - JPEG 2000
+- OpenEXR
 - ICO
 - PDF
 

Sources/Image.swift

@@ -556,7 +556,7 @@ public struct ImageTool {
         case .jpeg2000:
             fallthrough
         #endif
-        case .jpeg, .gif, .bmp, .ico, .png, .tiff, .heic, .heics, .pdf:
+        case .jpeg, .gif, .bmp, .ico, .png, .tiff, .heic, .heics, .exr, .pdf:
             guard let utType = format.utType, let destination = CGImageDestinationCreateWithURL(url as CFURL, utType, frames.count, nil) else {
                 // debugPrint(CGImageDestinationCopyTypeIdentifiers()) // supported output image formats when using `CGImageDestination` methods
                 throw CompressionError.failedToCreateImageFile
@@ -630,6 +630,11 @@ public struct ImageTool {
                 if let iptc = metadata[kCGImagePropertyIPTCDictionary] {
                     imageOptions[kCGImagePropertyIPTCDictionary] = iptc
                 }
+
+                // OpenEXR
+                if let exr = metadata[kCGImagePropertyOpenEXRDictionary] {
+                    imageOptions[kCGImagePropertyOpenEXRDictionary] = exr
+                }
             }
 
             // Orientation

Sources/Types/Image/ImageFormat.swift

@@ -66,6 +66,9 @@ public enum ImageFormat: Hashable, Equatable {
     /// Bitmap image format
     case bmp
 
+    /// OpenEXR
+    case exr
+
     /// Icon image format, squared only with 6, 32, 48, 128, or 256 pixels wide
     case ico
 
@@ -78,11 +81,11 @@ public enum ImageFormat: Hashable, Equatable {
     /// Predefined formats
     #if os(macOS)
     internal static var allFormats: [ImageFormat] = [
-        .heif, .heif10, .heic, .heics, .png, .jpeg, .jpeg2000, .gif, .tiff, .bmp, .ico, .pdf
+        .heif, .heif10, .heic, .heics, .png, .jpeg, .jpeg2000, .gif, .tiff, .bmp, .exr, .ico, .pdf
     ]
     #else
     internal static var allFormats: [ImageFormat] = [
-        .heif, .heif10, .heic, .heics, .png, .jpeg, .gif, .tiff, .bmp, .ico, .pdf
+        .heif, .heif10, .heic, .heics, .png, .jpeg, .gif, .tiff, .bmp, .exr, .ico, .pdf
     ]
     #endif
 
@@ -116,6 +119,7 @@ public enum ImageFormat: Hashable, Equatable {
         case (.gif, .gif): return true
         case (.tiff, .tiff): return true
         case (.bmp, .bmp): return true
+        case (.exr, .exr): return true
         case (.ico, .ico): return true
         case (.pdf, .pdf): return true
         case (.custom(let lhsFormatId), .custom(let rhsFormatId)):
@@ -170,6 +174,8 @@ public enum ImageFormat: Hashable, Equatable {
             } else {
                 return kUTTypeBMP
             }
+        case .exr:
+            return "com.ilm.openexr-image" as CFString
         case .ico:
             if #available(macOS 11, iOS 14, tvOS 14, visionOS 1, *) {
                 return UTType.ico.identifier as CFString