public async Task RenderPreviewImage()
{
using (var source = KnownImages.Nurse.ImageSource)
using (var effect = new EllipticFocusDepthOfFieldEffect(source, new FocusEllipse(new Point(0.5, 0.3), new EllipseRadius(0.2, 0.2)), 1.0, DepthOfFieldQuality.Preview))
using (var renderer = new JpegRenderer(effect))
{
var buffer = await renderer.RenderAsync();
ImageResults.Instance.SaveToPicturesLibrary(buffer, "EllipticFocusDepthOfFieldEffectTest_Preview.jpg");
}
}
public async Task RenderWithZeroWidthFocusAreaSuccedes()
{
using (var source = KnownImages.Nurse.ImageSource)
using (var effect = new EllipticFocusDepthOfFieldEffect(source, new FocusEllipse(new Point(0.5, 0.3), new EllipseRadius(0.0, 0.0)), 1.0, DepthOfFieldQuality.Full))
using (var renderer = new JpegRenderer(effect))
{
var buffer = await renderer.RenderAsync();
ImageResults.Instance.SaveToPicturesLibrary(buffer, "EllipticFocusDepthOfFieldEffectTest_ZeroWidthFocusArea.jpg");
}
}
protected override MaybeTask<IImageProvider> GetEffectInternalAsync(IImageProvider source, Windows.Foundation.Size sourceSize, Windows.Foundation.Size renderSize)
{
if (m_effectEffect == null)
{
m_effectEffect = new EllipticFocusDepthOfFieldEffect(source, m_ellipseFocus1, 1.0, DepthOfFieldQuality.Preview);
}
else
{
if (source != m_effectEffect.Source)
{
m_effectEffect.Source = source;
}
if (m_effectEffect.FocusArea != m_selectedEllipse)
{
m_effectEffect.FocusArea = m_selectedEllipse;
}
}
return new MaybeTask<IImageProvider>(m_effectEffect);
}