Struct ViewportTexturePosBuffer 

pub struct ViewportTexturePosBuffer(/* private fields */);

The position buffer for ViewportTexture.

This is used for ViewportTextureRectangleRenderer and ViewportTextureBrushRenderer.

Implementations

impl ViewportTexturePosBuffer

pub fn new(device: &Device) -> Self

Create a new position buffer.

pub fn update(&self, queue: &Queue, pos: Vec2)

Update the position buffer.

Trait Implementations

impl BufferWrapper for ViewportTexturePosBuffer

fn buffer(&self) -> &Buffer

Returns a reference to the buffer data.

const DEFAULT_USAGES: BufferUsages = _

The default usages.

fn download<'life0, 'life1, 'life2, 'async_trait, T>( &'life0 self, device: &'life1 Device, queue: &'life2 Queue, ) -> Pin<Box<dyn Future<Output = Result<Vec<T>, DownloadBufferError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, Self: Send + Sync + 'async_trait, T: 'async_trait + NoUninit + AnyBitPattern,

Download the buffer data into a Vec.

fn prepare_download( &self, device: &Device, encoder: &mut CommandEncoder, ) -> Buffer

Prepare for downloading the buffer data.

fn map_download<'life0, 'life1, 'async_trait, T>( download: &'life0 Buffer, device: &'life1 Device, ) -> Pin<Box<dyn Future<Output = Result<Vec<T>, DownloadBufferError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, T: 'async_trait + NoUninit + AnyBitPattern, Self: Send + 'async_trait,

Map the download buffer to read the buffer data.

fn map_download_with_poll_type<'life0, 'life1, 'async_trait, T>( download: &'life0 Buffer, device: &'life1 Device, poll_type: PollType<SubmissionIndex>, ) -> Pin<Box<dyn Future<Output = Result<Vec<T>, DownloadBufferError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, T: 'async_trait + NoUninit + AnyBitPattern,

Map the download buffer to read the buffer data with custom wgpu::PollType.

impl Clone for ViewportTexturePosBuffer

fn clone(&self) -> ViewportTexturePosBuffer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ViewportTexturePosBuffer

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

Formats the value using the given formatter.

impl FixedSizeBufferWrapper for ViewportTexturePosBuffer

type Pod = Vec2

The POD element type that defines the layout/size.

fn pod_size() -> u64

Returns the size in bytes of the POD element.

fn verify_buffer_size( buffer: &Buffer, ) -> Result<(), FixedSizeBufferWrapperError>

Check if the given buffer matches the expected size.

fn download_single( &self, device: &Device, queue: &Queue, ) -> impl Future<Output = Result<Self::Pod, DownloadBufferError>> + Send

where Self: Send + Sync, Self::Pod: NoUninit + AnyBitPattern,

Download a single FixedSizeBufferWrapper::Pod.

impl From<ViewportTexturePosBuffer> for Buffer

fn from(wrapper: ViewportTexturePosBuffer) -> Self

Converts to this type from the input type.

impl TryFrom<Buffer> for ViewportTexturePosBuffer

type Error = FixedSizeBufferWrapperError

The type returned in the event of a conversion error.

fn try_from(buffer: Buffer) -> Result<Self, Self::Error>

Performs the conversion.