Module drawing

Drawing related code for Layer, Scene, and Text. The functions in this module are used to draw into a Skia canvas independent from the backend

Structs

• ExternalBackdrop
  A backdrop image handed to BackgroundBlur layers that render into isolated buffers (e.g. KMS planes) and therefore can’t see the content behind them.

Functions

• clear_blur_cache
  Drop every cached blurred backdrop on this thread — for a render context that is being torn down, whose images must not outlive it.
• draw_layer
  Draw a layer into a skia::Canvas. Returns the damage rect in the layer’s coordinate space.
• draw_scene
  Draw the scene to the given skia::Canvas
• node_surfaces_stats
  How many node surfaces are cached, and their size in bytes (RGBA8).
• node_tree_list
• node_tree_list_visible
• paint_node_tree
  paint a node and his subtree in the provided canvas
• print_scene
  Print the node tree to the console
• render_node_tree
  Render a node and his subtree in the provided canvas taking care of the image caching if needed
• vibrancy_color_filter
  The tone map applied to a blurred backdrop, built once per thread.