Highlighted texture of CAMetalLayer is strange on some devices
I am using the below code to get and add a pixel buffer from a metal layer. On some non-specific devices, the output looks like below and the pixelFormat drawable text is.invalid
static func make(with currentDrawable: CAMetalDrawable, usingBuffer pool: CVPixelBufferPool) -> (CVPixelBuffer?, UIImage) {
let destinationTexture = currentDrawable.texture
var pixelBuffer: CVPixelBuffer?
_ = CVPixelBufferPoolCreatePixelBuffer(kCFAllocatorDefault, pool, &pixelBuffer)
if let pixelBuffer = pixelBuffer {
CVPixelBufferLockBaseAddress(pixelBuffer, CVPixelBufferLockFlags.init(rawValue: 0))
let region = MTLRegionMake2D(0, 0, Int(currentDrawable.layer.drawableSize.width), Int(currentDrawable.layer.drawableSize.height))
let bytesPerRow = CVPixelBufferGetBytesPerRow(pixelBuffer)
let tempBuffer = CVPixelBufferGetBaseAddress(pixelBuffer)
destinationTexture.getBytes(tempBuffer!, bytesPerRow: Int(bytesPerRow), from: region, mipmapLevel: 0)
let image = imageFromCVPixelBuffer(buffer: pixelBuffer)
CVPixelBufferUnlockBaseAddress(pixelBuffer, CVPixelBufferLockFlags.init(rawValue: 0))
return (pixelBuffer, image)
}
return (nil, UIImage())
}
static func imageFromCVPixelBuffer(buffer: CVPixelBuffer) -> UIImage {
let ciimage = CIImage(cvPixelBuffer: buffer)
let cgimgage = context.createCGImage(ciimage, from: CGRect(x: 0, y: 0, width: CVPixelBufferGetWidth(buffer), height: CVPixelBufferGetHeight(buffer)))
let uiimage = UIImage(cgImage: cgimgage!)
return uiimage
}
Does anyone know why this is happening and how to prevent it?
Below are some feedback from people who might find this: https://github.com/svtek/SceneKitVideoRecorder/issues/3
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