protected override void OnNavigatedTo(NavigationEventArgs e)
{
Debug.WriteLine("OnNavigatedTo");
_resultframeRenderer = new FrameRenderer(UIResultImage);
_inputFrameRenderer = new FrameRenderer(UIInputImage);
UIStyleList.ItemsSource = _kModelFileNames;
UIInkCanvasInput.InkPresenter.InputDeviceTypes =
CoreInputDeviceTypes.Mouse
| CoreInputDeviceTypes.Pen
| CoreInputDeviceTypes.Touch;
UIInkCanvasInput.InkPresenter.UpdateDefaultDrawingAttributes(
new Windows.UI.Input.Inking.InkDrawingAttributes()
{
Color = Windows.UI.Colors.Black,
Size = new Size(8, 8),
IgnorePressure = true,
IgnoreTilt = true,
}
);
// Select first style
UIStyleList.SelectedIndex = 0;
}
/// <summary>
/// Pass the input frame to a frame renderer and ensure proper image format is used
/// </summary>
/// <param name="inputVideoFrame"></param>
/// <param name="useDX"></param>
/// <returns></returns>
public static IAsyncAction RenderFrameAsync(FrameRenderer frameRenderer, VideoFrame inputVideoFrame)
{
return(AsyncInfo.Run(async(token) =>
{
bool useDX = inputVideoFrame.SoftwareBitmap == null;
if (frameRenderer == null)
{
throw (new InvalidOperationException("FrameRenderer is null"));
}
SoftwareBitmap softwareBitmap = null;
if (useDX)
{
softwareBitmap = await SoftwareBitmap.CreateCopyFromSurfaceAsync(inputVideoFrame.Direct3DSurface);
softwareBitmap = SoftwareBitmap.Convert(softwareBitmap, BitmapPixelFormat.Bgra8, BitmapAlphaMode.Premultiplied);
}
else
{
softwareBitmap = inputVideoFrame.SoftwareBitmap;
//softwareBitmap = new SoftwareBitmap(
// inputVideoFrame.SoftwareBitmap.BitmapPixelFormat,
// inputVideoFrame.SoftwareBitmap.PixelWidth,
// inputVideoFrame.SoftwareBitmap.PixelHeight,
// inputVideoFrame.SoftwareBitmap.BitmapAlphaMode);
//inputVideoFrame.SoftwareBitmap.CopyTo(softwareBitmap);
}
frameRenderer.RenderFrame(softwareBitmap);
}));
}
