Convert RGBA bytes to UIImage in Swift

getUIImageForRGBAData.swift

func getUIImageForRGBAData(#width: UInt, #height: UInt, #data: NSData) -> UIImage? {
  let pixelData = data.bytes
  let bytesPerPixel:UInt = 4
  let scanWidth = bytesPerPixel * width

  let provider = CGDataProviderCreateWithData(nil, pixelData, height * scanWidth, nil)

  let colorSpaceRef = CGColorSpaceCreateDeviceRGB()
  var bitmapInfo:CGBitmapInfo = .ByteOrderDefault;
  bitmapInfo |= CGBitmapInfo(CGImageAlphaInfo.Last.rawValue)
  let renderingIntent = kCGRenderingIntentDefault;

  let imageRef = CGImageCreate(width, height, 8, bytesPerPixel * 8, scanWidth, colorSpaceRef,
    bitmapInfo, provider, nil, false, renderingIntent);

  return UIImage(CGImage: imageRef)
}