806 lines
30 KiB
Swift
806 lines
30 KiB
Swift
import Cocoa
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import ZIPFoundation
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import CoreFoundation
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import Accelerate
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import CoreMedia
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struct SilicaChunk {
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var x: Int = 0
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var y: Int = 0
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var image: CGImage?
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}
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struct SilicaLayerData {
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var blendMode: Int = 0
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var extendedBlend: Int = 0
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var chunks: [SilicaChunk] = []
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var opacity: Double = 1.0
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var hidden: Bool = false
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}
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struct SilicaLayer {
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var name: String = ""
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var data: SilicaLayerData = SilicaLayerData()
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var mask: SilicaLayerData?
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var clipped: Bool = false
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}
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struct SilicaDocument {
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var trackedTime: Int = 0
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var tileSize: Int = 0
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var orientation: Int = 0
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var flippedHorizontally: Bool = false
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var flippedVertically: Bool = false
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var name: String = ""
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var authorName: String = ""
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var strokeCount: Int = 0
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var backgroundColor: CGColor = .white
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var colorSpace: CGColorSpace = CGColorSpaceCreateDeviceRGB()
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var width: Int = 0
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var height: Int = 0
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var layers: [SilicaLayer] = []
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var videoFrame: (Int, Int) = (0, 0)
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lazy var nsSize = {
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return NSSize(width: width, height: height)
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}()
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lazy var cgSize = {
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return CGSize(width: width, height: height)
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}()
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lazy var cgRect = {
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return CGRect(origin: .zero, size: cgSize)
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}()
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}
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func objectRefGetValue2(_ objectRef: CFTypeRef) -> UInt32 {
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let val = unsafeBitCast(objectRef, to: UInt64.self)
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return valueForKeyedArchiverUID(val)
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}
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class Document: NSDocument {
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var data: Data? // oh no...
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var dict: NSDictionary?
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var info = SilicaDocument()
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var rows: Int = 0
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var columns: Int = 0
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var remainderWidth: Int = 0
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var remainderHeight: Int = 0
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struct SilicaParsingError: Error, LocalizedError {
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enum Kind {
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case invalid
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}
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let kind: Kind
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let filename: URL?
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public var errorDescription: String? {
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switch self.kind {
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case .invalid:
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return filename!.lastPathComponent + " is an invalid Silica Document."
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}
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}
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}
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func throwError(_ error: SilicaParsingError.Kind) {
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DispatchQueue.main.sync {
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let _ = presentError(SilicaParsingError(kind: error, filename: fileURL))
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}
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}
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override init() {
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super.init()
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}
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override func makeWindowControllers() {
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let storyboard = NSStoryboard(name: NSStoryboard.Name("Main"), bundle: nil)
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let windowController = storyboard.instantiateController(withIdentifier: NSStoryboard.SceneIdentifier("Document Window Controller")) as! NSWindowController
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self.addWindowController(windowController)
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}
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override class func canConcurrentlyReadDocuments(ofType: String) -> Bool {
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return ofType == "com.procreate"
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}
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func getIdealFilename() -> String {
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if (!(info.name.isEmpty)) {
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return info.name
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} else {
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return fileURL!.deletingPathExtension().lastPathComponent
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}
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}
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/*
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Pass in an object from the $object array, which always contains a $class key.
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*/
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func getDocumentClassName(dict: NSDictionary) -> String? {
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let objectsArray = self.dict?["$objects"] as! NSArray
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if let value = dict["$class"] {
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let classObjectId = objectRefGetValue2(value as CFTypeRef)
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let classObject = objectsArray[Int(classObjectId)] as! NSDictionary
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return classObject["$classname"] as? String
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}
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return nil
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}
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/*
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Returns the correct tile size, taking into account the remainder between tile size and image size.
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*/
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func getTileSize(_ x: Int, _ y: Int) -> (Int, Int) {
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var width: Int = info.tileSize
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var height: Int = info.tileSize
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if((x + 1) == columns) {
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width = info.tileSize - remainderWidth
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}
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if(y == rows) {
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height = info.tileSize - remainderHeight
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}
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return (width, height)
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}
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/*
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Converts a CFKeyedArchiveUID from a NSKeyedArchive to a Int for indexing an array or dictionary.
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*/
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func getClassID(id: Any?) -> Int {
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return Int(objectRefGetValue2(id! as CFTypeRef))
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}
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/*
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Parses the chunk filename, ex. "1~1.chunk" to integer coordinates (1, 2).
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*/
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func parseChunkFilename(_ filename: String) -> (Int, Int)? {
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let pathURL = URL(fileURLWithPath: filename)
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let pathComponents = pathURL.lastPathComponent.replacingOccurrences(of: ".chunk", with: "").components(separatedBy: "~")
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if let x = Int(pathComponents[0]), let y = Int(pathComponents[1]) {
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return (x, y + 1)
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} else {
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return nil
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}
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}
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func getChunkRect(_ chunk: SilicaChunk) -> NSRect {
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let x = chunk.x
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var y = chunk.y
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let (width, height) = getTileSize(x, y)
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if y == rows {
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y = 0
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}
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return NSRect(x: info.tileSize * x, y: info.height - (info.tileSize * y), width: width, height: height)
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}
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// TODO: convert to switch/case
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func getBlendKernel(_ layer: SilicaLayer) -> CIBlendKernel? {
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if layer.data.blendMode == 1 {
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return .multiply
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}
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if layer.data.blendMode == 10 {
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return .colorBurn
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}
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if layer.data.blendMode == 19 {
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return .darken
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}
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if layer.data.blendMode == 8 {
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return .linearBurn
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}
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if layer.data.blendMode == 4 {
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return .lighten
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}
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if layer.data.blendMode == 2 {
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return .screen
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}
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if layer.data.blendMode == 13 {
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return .hardLight
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}
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if layer.data.blendMode == 9 {
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return .colorDodge
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}
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if layer.data.blendMode == 3 {
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return .subtract
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}
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if layer.data.blendMode == 0 && layer.data.blendMode != layer.data.extendedBlend {
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if layer.data.extendedBlend == 25 {
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return .darkerColor
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}
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if layer.data.extendedBlend == 24 {
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return .lighterColor
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}
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if layer.data.extendedBlend == 21 {
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return .vividLight
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}
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if layer.data.extendedBlend == 22 {
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return .linearLight
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}
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if layer.data.extendedBlend == 23 {
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return .pinLight
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}
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if layer.data.extendedBlend == 20 {
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return .hardMix
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}
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if layer.data.extendedBlend == 26 {
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return .divide
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}
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}
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if layer.data.blendMode == 11 {
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return .overlay
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}
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if layer.data.blendMode == 17 {
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return .softLight
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}
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if layer.data.blendMode == 12 {
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return .hardLight
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}
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if layer.data.blendMode == 6 {
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return .difference
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}
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if layer.data.blendMode == 5 {
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return .exclusion
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}
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if layer.data.blendMode == 7 {
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return .componentAdd
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}
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if layer.data.blendMode == 15 {
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return .hue
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}
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if layer.data.blendMode == 16 {
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return .saturation
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}
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if layer.data.blendMode == 13 {
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return .color
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}
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if layer.data.blendMode == 14 {
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return .luminosity
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}
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return .sourceOver
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}
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func parseSilicaLayer(archive: Archive, dict: NSDictionary, isMask: Bool) -> SilicaLayer? {
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let objectsArray = self.dict?["$objects"] as! NSArray
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if getDocumentClassName(dict: dict) == LayerClassName {
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var layer = SilicaLayer()
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if let val = dict["name"] {
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let NameClassID = getClassID(id: val)
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let NameClass = objectsArray[NameClassID] as! NSString
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layer.name = NameClass as String
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}
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let UUIDKey = dict["UUID"]
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let UUIDClassID = getClassID(id: UUIDKey)
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let UUIDClass = objectsArray[UUIDClassID] as! NSString
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let maskKey = dict["mask"]
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let maskClassID = getClassID(id: maskKey)
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let maskClass = objectsArray[maskClassID]
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layer.data.blendMode = (dict["blend"] as? NSNumber)!.intValue
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layer.data.extendedBlend = (dict["extendedBlend"] as? NSNumber)!.intValue
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layer.data.opacity = (dict["opacity"] as? NSNumber)!.doubleValue
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layer.data.hidden = (dict["hidden"] as? Bool)!
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layer.clipped = (dict["clipped"] as? Bool)!
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if maskClassID != 0 {
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layer.mask = parseSilicaLayer(archive: archive, dict: maskClass as! NSDictionary, isMask: true)?.data
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}
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var chunkPaths: [String] = []
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archive.forEach { (entry: Entry) in
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if entry.path.contains(String(UUIDClass)) {
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chunkPaths.append(entry.path)
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}
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}
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layer.data.chunks = Array(repeating: SilicaChunk(), count: chunkPaths.count)
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let dispatchGroup = DispatchGroup()
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let queue = DispatchQueue(label: "imageWork")
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DispatchQueue.concurrentPerform(iterations: chunkPaths.count) { (i: Int) in
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guard let threadArchive = Archive(data: self.data!, accessMode: .read) else {
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return
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}
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let threadEntry = threadArchive[chunkPaths[i]]
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guard let (x, y) = parseChunkFilename(threadEntry!.path) else {
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return
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}
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let (width, height) = getTileSize(x, y)
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let numChannels = isMask ? 1 : 4
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let byteSize = width * height * numChannels
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let uncompressedMemory = UnsafeMutablePointer<UInt8>.allocate(capacity: byteSize)
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guard let lzoData = readData(archive: threadArchive, entry: threadEntry!) else {
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return
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}
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lzoData.withUnsafeBytes({ (bytes: UnsafeRawBufferPointer) -> Void in
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var len = lzo_uint(byteSize)
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lzo1x_decompress_safe(bytes.baseAddress!.assumingMemoryBound(to: uint8.self), lzo_uint(lzoData.count), uncompressedMemory, &len, nil)
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})
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let imageData = Data(bytes: uncompressedMemory, count: byteSize)
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let render: CGColorRenderingIntent = .defaultIntent
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let rgbColorSpace = isMask ? CGColorSpaceCreateDeviceGray() : info.colorSpace
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let bitmapInfo = CGBitmapInfo(rawValue: (isMask ? CGImageAlphaInfo.none : CGImageAlphaInfo.premultipliedLast).rawValue).union(.byteOrder32Big)
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let providerRef: CGDataProvider? = CGDataProvider(data: imageData as CFData)
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guard let cgimage = CGImage(width: width, height: height, bitsPerComponent: 8, bitsPerPixel: 8 * numChannels, bytesPerRow: width * numChannels, space: rgbColorSpace, bitmapInfo: bitmapInfo, provider: providerRef!, decode: nil, shouldInterpolate: false, intent: render) else {
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return
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}
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queue.async(group: dispatchGroup) {
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layer.data.chunks[i].image = cgimage
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layer.data.chunks[i].x = x
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layer.data.chunks[i].y = y
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}
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}
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dispatchGroup.wait()
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return layer
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}
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return nil
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}
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func parsePairString(_ str: String) -> (Int, Int)? {
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let sizeComponents = str.replacingOccurrences(of: "{", with: "").replacingOccurrences(of: "}", with: "").components(separatedBy: ", ")
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if sizeComponents.count == 2 {
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let width = Int(sizeComponents[0])
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let height = Int(sizeComponents[1])
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return (width!, height!)
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} else {
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return nil
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}
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}
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func parseSilicaDocument(archive: Archive, dict: NSDictionary) {
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let objectsArray = self.dict?["$objects"] as! NSArray
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if getDocumentClassName(dict: dict) == DocumentClassName {
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info.trackedTime = (dict[TrackedTimeKey] as! NSNumber).intValue
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info.tileSize = (dict[TileSizeKey] as! NSNumber).intValue
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info.orientation = (dict[OrientationKey] as! NSNumber).intValue
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info.flippedHorizontally = (dict[FlippedHorizontallyKey] as! NSNumber).boolValue
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info.flippedVertically = (dict[FlippedVerticallyKey] as! NSNumber).boolValue
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let videoResolutionClassKey = dict["SilicaDocumentVideoSegmentInfoKey"]
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let videoResolutionClassID = getClassID(id: videoResolutionClassKey)
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let videoResolution = objectsArray[videoResolutionClassID] as! NSDictionary
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let frameSizeClassKey = videoResolution["frameSize"]
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let frameSizeClassID = getClassID(id: frameSizeClassKey)
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let frameSize = objectsArray[frameSizeClassID] as! String
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info.videoFrame = parsePairString(frameSize)!
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let colorProfileClassKey = dict["colorProfile"]
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let colorProfileClassID = getClassID(id: colorProfileClassKey)
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let colorProfile = objectsArray[colorProfileClassID] as! NSDictionary
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let colorProfileNameClassKey = colorProfile["SiColorProfileArchiveICCNameKey"]
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let colorProfileNameClassID = getClassID(id: colorProfileNameClassKey)
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let colorProfileName = objectsArray[colorProfileNameClassID] as! NSString
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// we only support the basic "Display P3" color space... does Procreate actually store the ICC data??
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if colorProfileName == "Display P3" {
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info.colorSpace = CGColorSpace(name: CGColorSpace.displayP3)!
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}
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let backgroundClassKey = dict["backgroundColor"]
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let backgroundClassID = getClassID(id: backgroundClassKey)
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let background = objectsArray[backgroundClassID] as! NSData
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var backgroundArray: [Float] = [0.0, 0.0, 0.0, 0.0]
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background.getBytes(&backgroundArray, length: 16)
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let backgroundCgArray: [CGFloat] = [CGFloat(backgroundArray[0]), CGFloat(backgroundArray[1]), CGFloat(backgroundArray[2]), CGFloat(backgroundArray[3])]
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info.backgroundColor = CGColor(colorSpace: info.colorSpace, components: backgroundCgArray)!
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let strokeClassKey = dict[StrokeCountKey]
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let strokeClassID = getClassID(id: strokeClassKey)
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let strokeCount = objectsArray[strokeClassID] as! NSNumber
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info.strokeCount = Int(truncating: strokeCount)
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let nameClassKey = dict[NameKey]
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let nameClassID = getClassID(id: nameClassKey)
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let nameString = objectsArray[nameClassID] as! NSString
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if nameString != "$null" {
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info.name = nameString as String
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}
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let authorClassKey = dict[AuthorNameKey]
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let authorClassID = getClassID(id: authorClassKey)
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let authorString = objectsArray[authorClassID] as! String
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if authorString != "$null" {
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info.authorName = authorString
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}
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let sizeClassKey = dict[SizeKey]
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let sizeClassID = getClassID(id: sizeClassKey)
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let sizeString = objectsArray[sizeClassID] as! String
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let (width, height) = parsePairString(sizeString)!
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info.width = width
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info.height = height
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columns = Int(ceil(Float(info.width) / Float(info.tileSize)))
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rows = Int(ceil(Float(info.height) / Float(info.tileSize))) + 1 // TODO: lol why
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if info.width % info.tileSize != 0 {
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remainderWidth = (columns * info.tileSize) - info.width
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}
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if info.height % info.tileSize != 0 {
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remainderHeight = (rows * info.tileSize) - info.height
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}
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let layersClassKey = dict[LayersKey]
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let layersClassID = getClassID(id: layersClassKey)
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let layersClass = objectsArray[layersClassID] as! NSDictionary
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let array = layersClass["NS.objects"] as! NSArray
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for object in array {
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let layerClassID = getClassID(id: object)
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let layerClass = objectsArray[layerClassID] as! NSDictionary
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guard let layer = parseSilicaLayer(archive: archive, dict: layerClass, isMask: false) else { return }
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info.layers.append(layer)
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}
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}
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}
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func parseDocument(archive: Archive, dict: NSDictionary) {
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// double check if this archive is really correct
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if let value = dict["$version"] {
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if (value as! Int) != NSKeyedArchiveVersion {
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throwError(.invalid)
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return
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}
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self.dict = dict
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let objectsArray = dict["$objects"] as! NSArray
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// let's read the $top class, which is always going to be SilicaDocument type.
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let topObject = dict["$top"] as! NSDictionary
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let topClassID = objectRefGetValue2(topObject["root"] as CFTypeRef)
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let topObjectClass = objectsArray[Int(topClassID)] as! NSDictionary
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parseSilicaDocument(archive: archive, dict: topObjectClass)
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}
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}
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override func read(from data: Data, ofType typeName: String) throws {
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self.data = data
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guard let archive = Archive(data: data, accessMode: Archive.AccessMode.read) else {
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throwError(.invalid)
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return
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}
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guard let documentEntry = archive[DocumentArchivePath] else {
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throwError(.invalid)
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return
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}
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guard let documentData = readData(archive: archive, entry: documentEntry) else {
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throwError(.invalid)
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return
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}
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var plistFormat = PropertyListSerialization.PropertyListFormat.binary
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guard let propertyList = try? PropertyListSerialization.propertyList(from: documentData, options: [], format: &plistFormat) else {
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throwError(.invalid)
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return
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}
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parseDocument(archive: archive, dict: propertyList as! NSDictionary)
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}
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func makeBlendImage(_ layer: SilicaLayer) -> CGImage {
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var maskContext: CGContext?
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if layer.mask != nil {
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let grayColorSpace = CGColorSpaceCreateDeviceGray()
|
|
let maskBitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.none.rawValue).union(.byteOrder16Big)
|
|
|
|
maskContext = CGContext(data: nil, width: info.width, height: info.height, bitsPerComponent: 16, bytesPerRow: 0, space: grayColorSpace, bitmapInfo: maskBitmapInfo.rawValue)
|
|
|
|
maskContext?.setFillColor(.white)
|
|
maskContext?.fill(info.cgRect)
|
|
|
|
for chunk in layer.mask!.chunks {
|
|
maskContext?.draw(chunk.image!, in: getChunkRect(chunk))
|
|
}
|
|
}
|
|
|
|
return (maskContext?.makeImage())!
|
|
}
|
|
|
|
func blendLayer(_ layer : SilicaLayer, previousImage : inout CGImage?) -> CIImage {
|
|
let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue).union(.byteOrder32Big)
|
|
|
|
// start by creating a new layer composite image, needed for image masking
|
|
let layerContext = CGContext(data: nil, width: info.width, height: info.height, bitsPerComponent: 8, bytesPerRow: info.width * 4, space: info.colorSpace, bitmapInfo: bitmapInfo.rawValue)
|
|
|
|
layerContext?.clear(info.cgRect)
|
|
|
|
let kernel = getBlendKernel(layer)
|
|
|
|
for chunk in layer.data.chunks {
|
|
layerContext?.setAlpha(CGFloat(layer.data.opacity))
|
|
layerContext?.setBlendMode(.normal)
|
|
|
|
if !layer.data.hidden {
|
|
layerContext?.draw(chunk.image!, in: getChunkRect(chunk))
|
|
}
|
|
}
|
|
|
|
let layerImage = layerContext?.makeImage()
|
|
|
|
if layer.clipped && previousImage != nil {
|
|
let result = previousImage!.toGrayscale()
|
|
let newImage = layerImage!.masking(result!)
|
|
|
|
previousImage = newImage
|
|
} else {
|
|
previousImage = layerImage
|
|
}
|
|
|
|
// apply image
|
|
return kernel!.apply(foreground: CIImage(cgImage: previousImage!), background: CIImage(color: .clear), colorSpace: info.colorSpace)!
|
|
}
|
|
|
|
func makeComposite() -> NSImage? {
|
|
// create the final composite output image
|
|
let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue).union(.byteOrder32Big)
|
|
|
|
let ccgContext = CGContext(data: nil, width: info.width, height: info.height, bitsPerComponent: 8, bytesPerRow: info.width * 4, space: info.colorSpace, bitmapInfo: bitmapInfo.rawValue)
|
|
|
|
ccgContext?.setFillColor(info.backgroundColor)
|
|
ccgContext?.fill(info.cgRect)
|
|
|
|
let context = CIContext()
|
|
|
|
guard let cgImage = ccgContext?.makeImage() else {
|
|
return nil
|
|
}
|
|
|
|
var masterImage = CIImage(cgImage: cgImage)
|
|
|
|
var previousImage: CGImage? = nil
|
|
|
|
for layer in info.layers.reversed() {
|
|
if !layer.data.hidden {
|
|
// start by creating a new layer composite image, needed for image masking
|
|
let layerContext = CGContext(data: nil, width: info.width, height: info.height, bitsPerComponent: 8, bytesPerRow: info.width * 4, space: info.colorSpace, bitmapInfo: bitmapInfo.rawValue)
|
|
|
|
layerContext?.clear(info.cgRect)
|
|
|
|
var maskContext: CGContext?
|
|
|
|
let kernel = getBlendKernel(layer)
|
|
|
|
if layer.mask != nil {
|
|
let grayColorSpace = CGColorSpaceCreateDeviceGray()
|
|
let maskBitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.none.rawValue).union(.byteOrder16Big)
|
|
|
|
maskContext = CGContext(data: nil, width: info.width, height: info.height, bitsPerComponent: 16, bytesPerRow: 0, space: grayColorSpace, bitmapInfo: maskBitmapInfo.rawValue)
|
|
|
|
maskContext?.setFillColor(.white)
|
|
maskContext?.fill(info.cgRect)
|
|
|
|
for chunk in layer.mask!.chunks {
|
|
maskContext?.draw(chunk.image!, in: getChunkRect(chunk))
|
|
}
|
|
}
|
|
|
|
for chunk in layer.data.chunks {
|
|
layerContext?.setAlpha(CGFloat(layer.data.opacity))
|
|
layerContext?.setBlendMode(.normal)
|
|
|
|
if !layer.data.hidden {
|
|
layerContext?.draw(chunk.image!, in: getChunkRect(chunk))
|
|
}
|
|
}
|
|
|
|
let layerImage = layerContext?.makeImage()
|
|
|
|
if layer.clipped && previousImage != nil {
|
|
let result = previousImage!.toGrayscale()
|
|
let newImage = layerImage!.masking(result!)
|
|
|
|
previousImage = newImage
|
|
} else if layer.mask != nil && maskContext != nil {
|
|
let maskImage = (maskContext?.makeImage())!
|
|
let newImage = layerImage!.masking(maskImage)!
|
|
|
|
previousImage = newImage
|
|
} else {
|
|
previousImage = layerImage
|
|
}
|
|
|
|
// apply image
|
|
masterImage = kernel!.apply(foreground: CIImage(cgImage: previousImage!), background: masterImage, colorSpace: info.colorSpace)!
|
|
}
|
|
}
|
|
|
|
guard let finalCgImage = context.createCGImage(masterImage, from: info.cgRect, format: .RGBA8, colorSpace: info.colorSpace) else {
|
|
return nil
|
|
}
|
|
|
|
var image = NSImage(cgImage: finalCgImage, size: info.nsSize)
|
|
|
|
if info.orientation == 3 {
|
|
image = image.imageRotatedByDegreess(degrees: 90)
|
|
} else if info.orientation == 4 {
|
|
image = image.imageRotatedByDegreess(degrees: -90)
|
|
}
|
|
|
|
if info.flippedHorizontally && (info.orientation == 1 || info.orientation == 2) {
|
|
image = image.flipHorizontally()
|
|
} else if info.flippedHorizontally && (info.orientation == 3 || info.orientation == 4) {
|
|
image = image.flipVertically()
|
|
} else if info.flippedVertically && (info.orientation == 1 || info.orientation == 2) {
|
|
image = image.flipVertically()
|
|
} else if !info.flippedVertically && (info.orientation == 3 || info.orientation == 4) {
|
|
image = image.flipHorizontally()
|
|
}
|
|
|
|
return image
|
|
}
|
|
|
|
func makeThumbnail() -> NSImage? {
|
|
guard let archive = Archive(data: data!, accessMode: Archive.AccessMode.read) else {
|
|
return nil
|
|
}
|
|
|
|
guard let entry = archive[ThumbnailPath] else {
|
|
return nil
|
|
}
|
|
|
|
guard let thumbnailData = readData(archive: archive, entry: entry) else {
|
|
return nil
|
|
}
|
|
|
|
return NSImage(data: thumbnailData)
|
|
}
|
|
}
|
|
|
|
public extension NSImage {
|
|
func imageRotatedByDegreess(degrees:CGFloat) -> NSImage {
|
|
var imageBounds = NSMakeRect(0.0, 0.0, size.width, size.height)
|
|
|
|
let pathBounds = NSBezierPath(rect: imageBounds)
|
|
var transform = NSAffineTransform()
|
|
transform.rotate(byDegrees: degrees)
|
|
pathBounds.transform(using: transform as AffineTransform)
|
|
|
|
let rotatedBounds:NSRect = NSMakeRect(NSZeroPoint.x, NSZeroPoint.y, pathBounds.bounds.size.width, pathBounds.bounds.size.height )
|
|
let rotatedImage = NSImage(size: rotatedBounds.size)
|
|
|
|
imageBounds.origin.x = NSMidX(rotatedBounds) - (NSWidth(imageBounds) / 2)
|
|
imageBounds.origin.y = NSMidY(rotatedBounds) - (NSHeight(imageBounds) / 2)
|
|
|
|
transform = NSAffineTransform()
|
|
transform.translateX(by: +(NSWidth(rotatedBounds) / 2 ), yBy: +(NSHeight(rotatedBounds) / 2))
|
|
transform.rotate(byDegrees: degrees)
|
|
transform.translateX(by: -(NSWidth(rotatedBounds) / 2 ), yBy: -(NSHeight(rotatedBounds) / 2))
|
|
|
|
rotatedImage.lockFocus()
|
|
transform.concat()
|
|
|
|
self.draw(in: imageBounds, from: .zero, operation: .copy, fraction: 1.0)
|
|
|
|
rotatedImage.unlockFocus()
|
|
|
|
return rotatedImage
|
|
}
|
|
|
|
func flipHorizontally() -> NSImage {
|
|
let flipedImage = NSImage(size: size)
|
|
flipedImage.lockFocus()
|
|
|
|
let transform = NSAffineTransform()
|
|
transform.translateX(by: size.width, yBy: 0.0)
|
|
transform.scaleX(by: -1.0, yBy: 1.0)
|
|
transform.concat()
|
|
|
|
let rect = NSMakeRect(0, 0, size.width, size.height)
|
|
self.draw(at: .zero, from: rect, operation: .sourceOver, fraction: 1.0)
|
|
|
|
flipedImage.unlockFocus()
|
|
|
|
return flipedImage
|
|
}
|
|
|
|
func flipVertically() -> NSImage {
|
|
let flipedImage = NSImage(size: size)
|
|
flipedImage.lockFocus()
|
|
|
|
let transform = NSAffineTransform()
|
|
transform.translateX(by: 0.0, yBy: size.height)
|
|
transform.scaleX(by: 1.0, yBy: -1.0)
|
|
transform.concat()
|
|
|
|
let rect = NSMakeRect(0, 0, size.width, size.height)
|
|
self.draw(at: .zero, from: rect, operation: .sourceOver, fraction: 1.0)
|
|
|
|
flipedImage.unlockFocus()
|
|
|
|
return flipedImage
|
|
}
|
|
}
|
|
|
|
public extension CGImage {
|
|
func toGrayscale() -> CGImage? {
|
|
let ciImage = CIImage(cgImage: self)
|
|
|
|
let filter = CIFilter(name: "CIColorControls")
|
|
filter?.setValue(ciImage, forKey: kCIInputImageKey)
|
|
filter?.setValue(5.0, forKey: kCIInputBrightnessKey)
|
|
filter?.setValue(0.0, forKey: kCIInputSaturationKey)
|
|
filter?.setValue(1.1, forKey: kCIInputContrastKey)
|
|
|
|
guard let intermediateImage = filter?.outputImage else {
|
|
return nil
|
|
}
|
|
|
|
guard let image = CIContext().createCGImage(intermediateImage, from: CGRect(origin: .zero, size: CGSize(width: self.width, height: self.height))) else {
|
|
return nil
|
|
}
|
|
|
|
let grayColorSpace = CGColorSpaceCreateDeviceGray()
|
|
let maskBitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.none.rawValue).union(.byteOrder16Big)
|
|
|
|
let maskContext = CGContext(data: nil, width: self.width, height: self.height, bitsPerComponent: 16, bytesPerRow: 0, space: grayColorSpace, bitmapInfo: maskBitmapInfo.rawValue)
|
|
|
|
maskContext?.setFillColor(.black)
|
|
maskContext?.fill(CGRect(origin: .zero, size: CGSize(width: self.width, height: self.height)))
|
|
|
|
maskContext?.draw(image, in: CGRect(origin: .zero, size: CGSize(width: self.width, height: self.height)))
|
|
|
|
return maskContext?.makeImage()
|
|
}
|
|
}
|