Struct ExternalSurfaceDescriptor 

pub struct ExternalSurfaceDescriptor {
    pub local_surface_size: LayoutSize,
    pub local_rect: PictureRect,
    pub local_clip_rect: PictureRect,
    pub clip_rect: DeviceRect,
    pub transform_index: CompositorTransformIndex,
    pub image_rendering: ImageRendering,
    pub z_id: ZBufferId,
    pub dependency: ExternalSurfaceDependency,
    pub native_surface_id: Option<NativeSurfaceId>,
    pub update_params: Option<DeviceIntSize>,
    pub external_image_id: Option<ExternalImageId>,
}

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.

Fields

local_surface_size: LayoutSize

local_rect: PictureRect

local_clip_rect: PictureRect

clip_rect: DeviceRect

transform_index: CompositorTransformIndex

image_rendering: ImageRendering

z_id: ZBufferId

dependency: ExternalSurfaceDependency

native_surface_id: Option<NativeSurfaceId>

If native compositing is enabled, the native compositor surface handle. Otherwise, this will be None

update_params: Option<DeviceIntSize>

If the native surface needs to be updated, this will contain the size of the native surface as Some(size). If not dirty, this is None.

external_image_id: Option<ExternalImageId>

If using external compositing, a user key for the client

Implementations

impl ExternalSurfaceDescriptor

pub fn get_occluder_rect( &self, local_clip_rect: &PictureRect, map_pic_to_world: &SpaceMapper<PicturePixel, WorldPixel>, ) -> Option<WorldRect>

Calculate an optional occlusion rect for a given compositor surface