Struct iced::widget::shader::wgpu::Surface

pub struct Surface<'window> { /* private fields */ }

Available on crate feature wgpu only.

Handle to a presentable surface.

A Surface represents a platform-specific surface (e.g. a window) onto which rendered images may be presented. A Surface may be created with the function Instance::create_surface.

This type is unique to the Rust API of wgpu. In the WebGPU specification, GPUCanvasContext serves a similar role.

Implementations

impl Surface<'_>

pub fn get_capabilities(&self, adapter: &Adapter) -> SurfaceCapabilities

Returns the capabilities of the surface when used with the given adapter.

Returns specified values (see SurfaceCapabilities) if surface is incompatible with the adapter.

pub fn get_default_config( &self, adapter: &Adapter, width: u32, height: u32 ) -> Option<SurfaceConfiguration<Vec<TextureFormat>>>

Return a default SurfaceConfiguration from width and height to use for the Surface with this adapter.

Returns None if the surface isn’t supported by this adapter

pub fn configure( &self, device: &Device, config: &SurfaceConfiguration<Vec<TextureFormat>> )

Initializes Surface for presentation.

Panics

• A old SurfaceTexture is still alive referencing an old surface.
• Texture format requested is unsupported on the surface.
• config.width or config.height is zero.

pub fn get_current_texture(&self) -> Result<SurfaceTexture, SurfaceError>

Returns the next texture to be presented by the swapchain for drawing.

In order to present the SurfaceTexture returned by this method, first a Queue::submit needs to be done with some work rendering to this texture. Then SurfaceTexture::present needs to be called.

If a SurfaceTexture referencing this surface is alive when the swapchain is recreated, recreating the swapchain will panic.

pub unsafe fn as_hal<A, F, R>(&mut self, hal_surface_callback: F) -> Option<R>

where A: HalApi, F: FnOnce(Option<&<A as Api>::Surface>) -> R,

Available on wgpu_core only.

Returns the inner hal Surface using a callback. The hal surface will be None if the backend type argument does not match with this wgpu Surface

Safety

• The raw handle obtained from the hal Surface must not be manually destroyed

impl Surface<'_>

pub fn global_id(&self) -> Id<Surface<'_>>

Returns a globally-unique identifier for this Surface.

Calling this method multiple times on the same object will always return the same value. The returned value is guaranteed to be different for all resources created from the same Instance.

Trait Implementations

impl<'window> Debug for Surface<'window>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Drop for Surface<'_>

fn drop(&mut self)

Executes the destructor for this type.