private async void ApplyEffect(CompositionImage image)
        {
            Task <CompositionDrawingSurface> task = null;

            // If we've requested a load time effect input, kick it off now
            if (_currentTechnique.LoadTimeEffectHandler != null)
            {
                task = SurfaceLoader.LoadFromUri(image.Source, Size.Empty, _currentTechnique.LoadTimeEffectHandler);
            }

            // Create the new brush, set the inputs and set it on the image
            CompositionEffectBrush brush = _currentTechnique.CreateBrush();

            brush.SetSourceParameter("ImageSource", image.SurfaceBrush);
            image.Brush = brush;

            // If we've got an active task, wait for it to finish
            if (task != null)
            {
                CompositionDrawingSurface effectSurface = await task;

                // Set the effect surface as input
                brush.SetSourceParameter("EffectSource", _compositor.CreateSurfaceBrush(effectSurface));
            }
        }
Beispiel #2
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        private async void ApplyEffect(CompositionImage image)
        {
            ManagedSurface effectSurface = null;

            // If we've requested a load time effect input, kick it off now
            if (_currentTechnique.LoadTimeEffectHandler != null)
            {
                effectSurface = await ImageLoader.Instance.LoadFromUriAsync(image.Source, Size.Empty, _currentTechnique.LoadTimeEffectHandler);
            }

            // Create the new brush, set the inputs and set it on the image
            CompositionEffectBrush brush = _currentTechnique.CreateBrush();

            brush.SetSourceParameter("ImageSource", image.SurfaceBrush);
            image.Brush = brush;

            // Set the effect surface as input
            if (effectSurface != null)
            {
                brush.SetSourceParameter("EffectSource", effectSurface.Brush);
            }
        }