private async void OnSourceChanged(IVideoAnimationSource newValue, IVideoAnimationSource oldValue)
{
var canvas = _canvas;
if (canvas == null)
{
return;
}
if (newValue == null)
{
_source = null;
Subscribe(false);
return;
}
if (newValue?.Id == oldValue?.Id || newValue?.Id == _source?.Id)
{
return;
}
_source = newValue;
var shouldPlay = _shouldPlay;
var animation = await Task.Run(() => VideoAnimation.LoadFromFile(newValue, false, true));
if (animation == null || newValue?.Id != _source?.Id)
{
// The app can't access the file specified
return;
}
if (_shouldPlay)
{
shouldPlay = true;
}
_animation = animation;
_bitmap = null;
if (AutoPlay || _shouldPlay)
{
_shouldPlay = false;
Subscribe(true);
}
else if (!_unloaded)
{
Subscribe(false);
if (_canvas.ReadyToDraw)
{
var buffer = ArrayPool<byte>.Shared.Rent(_animation.PixelWidth * _animation.PixelHeight * 4);
_bitmap = CanvasBitmap.CreateFromBytes(_canvas, buffer, _animation.PixelWidth, _animation.PixelHeight, DirectXPixelFormat.R8G8B8A8UIntNormalized);
ArrayPool<byte>.Shared.Return(buffer);
}
// Invalidate to render the first frame
await Task.Run(Invalidate);
_canvas?.Invalidate();
}
}
protected override void Dispose()
{
if (_animation != null && !_animation.IsCaching)
{
_animation.Dispose();
}
_source = null;
_animation = null;
}
private void OnUnloaded(object sender, RoutedEventArgs e)
{
_shouldPlay = false;
_unloaded = true;
Subscribe(false);
if (_canvas != null)
{
_canvas.Draw -= OnDraw;
_canvas.RemoveFromVisualTree();
_canvas = null;
}
_source = null;
//_bitmap?.Dispose();
_bitmap = null;
//_animation?.Dispose();
_animation = null;
}
private async void OnSourceChanged(IVideoAnimationSource newValue, IVideoAnimationSource oldValue)
{
//var canvas = _canvas;
//if (canvas == null && !Load())
//{
// return;
//}
if (newValue == null)
{
Unload();
return;
}
if (newValue?.Id == oldValue?.Id || newValue?.Id == _source?.Id)
{
return;
}
_source = newValue;
var animation = await Task.Run(() => CachedVideoAnimation.LoadFromFile(newValue, 0, 0, _isCachingEnabled));
if (animation == null || newValue?.Id != _source?.Id)
{
// The app can't access the file specified
Client.Execute(new AddLogMessage(5, $"Can't load animation for playback: {newValue.FilePath}"));
return;
}
var frameRate = Math.Clamp(animation.FrameRate, 1, _isCachingEnabled ? 30 : 60);
_interval = TimeSpan.FromMilliseconds(1000d / frameRate);
_animation = animation;
_hideThumbnail = null;
OnSourceChanged();
}
