Struct Scanner 

pub struct Scanner { /* private fields */ }

Performs inclusive and exclusive unsigned 32-bit prefix scans on a wgpu device.

Implementations

impl Scanner

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

Creates a scanner that submits work through an existing wgpu device and queue.

pub fn from_context(ctx: &Context) -> Self

Creates a scanner from the crate’s optional convenience context.

pub async fn scan(&mut self, input: &[u32]) -> Result<Vec<u32>, Error>

Uploads values, scans them on the GPU, and downloads the inclusive prefixes.

pub async fn scan_exclusive(&mut self, input: &[u32]) -> Result<Vec<u32>, Error>

Uploads values, scans them on the GPU, and downloads the exclusive prefixes.

pub fn scan_gpu_to_gpu( &mut self, input_buf: &Buffer, output_buf: &Buffer, num_items: u32, ) -> Result<(), Error>

Scans caller-owned GPU buffers and submits the work immediately.

pub fn scan_exclusive_gpu_to_gpu( &mut self, input_buf: &Buffer, output_buf: &Buffer, num_items: u32, ) -> Result<(), Error>

Exclusively scans caller-owned GPU buffers and submits the work immediately.

pub async fn profile_scan_gpu_to_gpu( &mut self, input_buf: &Buffer, output_buf: &Buffer, num_items: u32, ) -> Result<GpuProfile, Error>

Profiles an inclusive scan of caller-owned GPU buffers using GPU timestamps.

pub async fn profile_exclusive_scan_gpu_to_gpu( &mut self, input_buf: &Buffer, output_buf: &Buffer, num_items: u32, ) -> Result<GpuProfile, Error>

Profiles an exclusive scan of caller-owned GPU buffers using GPU timestamps.

pub fn record_scan( &mut self, encoder: &mut CommandEncoder, input_buf: &Buffer, output_buf: &Buffer, num_items: u32, ) -> Result<(), Error>

Records a GPU prefix scan without submitting or waiting for the work.

pub fn record_exclusive_scan( &mut self, encoder: &mut CommandEncoder, input_buf: &Buffer, output_buf: &Buffer, num_items: u32, ) -> Result<(), Error>

Records an exclusive GPU prefix scan without submitting or waiting for the work.