Module webrender::composite

Structs

• CompositeDescriptor
  Describes surface properties used to composite a frame. This is used to compare compositions between frames.
• CompositeFeatures
  Optional features that can be opted-out of when compositing, possibly allowing a fast path to be selected.
• CompositeState
  The list of tiles to be drawn this frame
• CompositeStatePreallocator
• CompositeSurfaceDescriptor
  Describes the properties that identify a surface composition uniquely.
• CompositeTile
  Describes the geometry and surface of a tile to be composited
• CompositeTileDescriptor
  Describes properties that identify a tile composition uniquely. The backing surface for this tile.
• CompositorCapabilities
• CompositorTransform
  A transform for either a picture cache or external compositor surface, stored in the CompositeState structure. This allows conversions from local rects to raster or device rects, without access to the spatial tree (e.g. during the render step where dirty rects are calculated). Since we know that we only handle scale and offset transforms for these types, we can store a single ScaleOffset rather than 4x4 matrix here for efficiency.
• CompositorTransformIndex
• ExternalPlaneDescriptor
  Information about a plane in a YUV or RGB surface.
• ExternalSurfaceDescriptor
  Describes information about drawing a primitive as a compositor surface. For now, we support only YUV images as compositor surfaces, but in future this will also support RGBA images.
• MappedTileInfo
  Information about the underlying data buffer of a mapped tile.
• NativeSurfaceId
  An arbitrary identifier for a native (OS compositor) surface
• NativeSurfaceInfo
  Information about a bound surface that the native compositor returns to WR.
• NativeSurfaceOperation
  Describes an operation to apply to a native surface
• NativeTileId
• Occluder 🔒
  Information about an opaque surface used to occlude tiles.
• Occluders
  List of registered occluders.
• OcclusionEvent 🔒
• ResolvedExternalSurface
  An ExternalSurfaceDescriptor that has had image keys resolved to texture handles. This contains all the information that the compositor step in renderer needs to know.
• ResolvedExternalSurfaceIndex
• SWGLCompositeSurfaceInfo
  Descriptor for a locked surface that will be directly composited by SWGL.
• WindowVisibility

Enums

• CompositeSurfaceFormat
  The surface format for a tile being composited.
• CompositeTileSurface
  Describes the source surface information for a tile to be composited. This is the analog of the TileSurface type, with target surface information resolved such that it can be used by the renderer.
• CompositorConfig
  Public interface specified in WebRenderOptions that configures how WR compositing will operate.
• CompositorKind
  This is a representation of CompositorConfig without the Compositor trait present. This allows it to be freely copied to other threads, such as the render backend where the frame builder can access it.
• CompositorSurfaceKind
  Which method is being used to draw a requested compositor surface
• ExternalSurfaceDependency
• NativeSurfaceOperationDetails
  Describes details of an operation to apply to a native surface
• OcclusionEventKind 🔒
• ResolvedExternalSurfaceColorData
• TileKind
• TileSurfaceKind
  The backing surface kind for a tile. Same as TileSurface, minus the texture cache handles, visibility masks etc.
• WindowSizeMode

Traits

• Compositor
  Defines an interface to a native (OS level) compositor. If supplied by the client application, then picture cache slices will be composited by the OS compositor, rather than drawn via WR batches.
• MappableCompositor
  A Compositor variant that supports mapping tiles into CPU memory.
• PartialPresentCompositor
  Defines an interface to a non-native (application-level) Compositor which handles partial present. This is required if webrender must query the backbuffer’s age. TODO: Use the Compositor trait for native and non-native compositors, and integrate this functionality there.

Functions

• tile_kind

Type Aliases

• CompositorSurfaceTransform
  The transform type to apply to Compositor surfaces.