Struct Surface

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

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>(&self, hal_surface_callback: F) -> R

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

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

Trait Implementations

impl Debug for Surface<'_>

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

Formats the value using the given formatter.

impl Hash for Surface<'_>

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Surface<'_>

fn cmp(&self, other: &Surface<'_>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Surface<'_>

fn eq(&self, other: &Surface<'_>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Surface<'_>

fn partial_cmp(&self, other: &Surface<'_>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Surface<'_>