private static async Task RenderEffect(FocusBand focusBand, DepthOfFieldQuality quality, [CallerMemberName] string testName = "")
{
using (var source = await KnownImages.Nurse.GetImageSourceAsync())
using (var effect = new LensTiltDepthOfFieldEffect(source, focusBand, 1.0, 1.0, quality))
using (var renderer = new JpegRenderer(effect))
{
var buffer = await renderer.RenderAsync();
await FileUtilities.SaveToPicturesLibraryAsync(buffer, "LensTiltDepthOfFieldEffectTest_" + testName + ".jpg");
}
}
protected override MaybeTask <IImageProvider> GetEffectInternalAsync(IImageProvider source, Windows.Foundation.Size sourceSize, Windows.Foundation.Size renderSize)
{
if (m_effectEffect == null)
{
m_focus = new FocusBand(new Point(0.5, 0.3), new Point(0.5, 0.4));
m_effectEffect = new LensTiltDepthOfFieldEffect(source, m_focus, 1.0, 1.0, DepthOfFieldQuality.Preview);
}
else if (m_effectEffect.Source != source)
{
m_effectEffect.Source = source;
}
return(new MaybeTask <IImageProvider>(m_effectEffect));
}