public WicConditionalCache(WicTransform prev) : base(prev)
{
if (!Context.NeedsCache)
{
return;
}
var crop = Context.Settings.Crop;
var bmp = AddRef(Wic.CreateBitmapFromSourceRect(Source, (uint)crop.X, (uint)crop.Y, (uint)crop.Width, (uint)crop.Height));
Source = bmp;
Source.GetSize(out Context.Width, out Context.Height);
Context.Settings.Crop = new Rectangle(0, 0, (int)Context.Width, (int)Context.Height);
Context.NeedsCache = false;
}