Struct Instance 

pub struct Instance {
    pub flags: InstanceFlags,
    /* private fields */
}

Fields

flags: InstanceFlags

Implementations

impl Instance

pub fn new( name: &str, instance_desc: InstanceDescriptor, telemetry: Option<Telemetry>, ) -> Instance

pub fn raw(&self, backend: Backend) -> Option<&(dyn DynInstance + 'static)>

pub unsafe fn as_hal<A>(&self) -> Option<&<A as Api>::Instance>

where A: Api,

Safety

• The raw instance handle returned must not be manually destroyed.

pub unsafe fn create_surface( &self, display_handle: Option<RawDisplayHandle>, window_handle: RawWindowHandle, ) -> Result<Surface, CreateSurfaceError>

Creates a new surface targeting the given display/window handles.

Internally attempts to create hal surfaces for all enabled backends.

Fails only if creation for surfaces for all enabled backends fails in which case the error for each enabled backend is listed. Vice versa, if creation for any backend succeeds, success is returned. Surface creation errors are logged to the debug log in any case.

Safety

• display_handle must be a valid object to create a surface upon, falls back to the instance display handle otherwise.
• window_handle must remain valid as long as the returned SurfaceId is being used.

pub unsafe fn create_surface_from_drm( &self, fd: i32, plane: u32, connector_id: u32, width: u32, height: u32, refresh_rate: u32, ) -> Result<Surface, CreateSurfaceError>

Creates a new surface from the given drm configuration.

Safety

• All parameters must point to valid DRM values.

Platform Support

This function is only available on non-apple Unix-like platforms (Linux, FreeBSD) and currently only works with the Vulkan backend.

pub fn enumerate_adapters(&self, backends: Backends) -> Vec<Adapter>

pub fn request_adapter( &self, desc: &RequestAdapterOptions<&Surface>, backends: Backends, ) -> Result<Adapter, RequestAdapterError>

Trait Implementations

impl Default for Instance

fn default() -> Instance

Returns the “default value” for a type.