public CanvasCommandList GetCanvasImage(ICanvasResourceCreator resourceCreator, float scaleX, float scaleY)
{
lock (this)
{
var commandList = new CanvasCommandList(resourceCreator);
using (var session = commandList.CreateDrawingSession())
{
var width = _composition.Bounds.Width * scaleX;
var height = _composition.Bounds.Height * scaleY;
if (_bitmapCanvas == null || _bitmapCanvas.Width < width || _bitmapCanvas.Height < height)
{
_bitmapCanvas?.Dispose();
_bitmapCanvas = new BitmapCanvas(width, height);
}
using (_bitmapCanvas.CreateSession(resourceCreator.Device, (float)width,
(float)height, session))
{
_bitmapCanvas.Clear(Colors.Transparent);
LottieLog.BeginSection("Drawable.Draw");
if (_compositionLayer == null)
{
return(null);
}
_matrix.Reset();
_matrix = MatrixExt.PreScale(_matrix, scaleX, scaleY);
_compositionLayer.Draw(_bitmapCanvas, _matrix, _alpha);
LottieLog.EndSection("Drawable.Draw");
}
}
return(commandList);
}
}
private void UserControl_Unloaded(object sender, RoutedEventArgs e)
{
// Explicitly remove references to allow the Win2D controls to get garbage collected
if (_canvasControl != null)
{
_canvasControl.RemoveFromVisualTree();
_canvasControl = null;
}
if (_bitmapCanvas != null)
{
_bitmapCanvas.Dispose();
_bitmapCanvas = null;
}
ClearComposition();
}
