The default ITileBackend: the fully managed SoftwareRasterizer, sliced through ProgressiveRender.
public sealed class SoftwareTileBackend : ITileBackend, IDisposable
ISO 32000-2 §10.7.1. Spec #33 story 54 (software by default) and viewer capability 2. A viewer's tiles are for display, so images are decoded at the resolution they are drawn at unless the constructor says otherwise (ScaledImageDecode).
kind:method, kind:property, kind:ctor. Press Esc to clear.SoftwareTileBackend()Initializes a new instance of the SoftwareTileBackend class that decodes images at the resolution they are drawn at, keeping 2 samples per device pixel.SoftwareTileBackend(Boolean, Double)Initializes a new instance of the SoftwareTileBackend class.Begin(DisplayList, Bitmap, in Matrix, CancellationToken)Starts drawing list into target.Dispose()Releases the rasterizer and its pooled scratch buffers.