Struct Queue 

pub struct Queue { /* private fields */ }

the device’s queue (graphics, compute, copies, presentation)

Implementations

impl Queue

pub fn submit<'a, I: IntoIterator<Item = CommandBuffer<'a>>>( &self, cmds: I, ) -> Result<SubmitId>

run command buffers in order (after the pending uploads) -> their timeline value

pub fn flush(&self) -> Result<SubmitId>

submit the pending uploads now

pub fn write_buffer<T: Pod>( &self, buf: &Buffer, offset: u64, data: &[T], ) -> Result<()>

write data into a buffer at offset before the next submission (staged)

pub fn write_texture( &self, dst: &TextureRegion<'_>, data: &[u8], layout: DataLayout, before: Layout, after: Layout, ) -> Result<()>

write texels into a texture region before the next submission (staged): the region goes from before to CopyDst, gets the data, then goes to after

pub fn write_texture_rects( &self, t: &Texture, rects: &[[i32; 4]], data: &[u8], stride: u32, before: Layout, after: Layout, ) -> Result<()>

write rectangles (x, y, w, h; clipped to the texture, empty ones skipped) of mip 0, layer 0 of a 2D texture from data, an image of the texture’s size in rows of stride bytes (a framebuffer), before the next submission; the staged bytes are those of the rectangles. The whole level goes from before to CopyDst and then to after, once for all of them

pub fn write_texture_rects_at( &self, t: &Texture, rects: &[[i32; 4]], origin: (i32, i32), data: &[u8], stride: u32, before: Layout, after: Layout, ) -> Result<()>

write_texture_rects from an image of another size: rectangles (x, y, w, h) of data, an image in rows of stride bytes, go to (x - origin.0, y - origin.1) of the texture; what lies outside the image or the texture is skipped

pub fn read_buffer<T: Pod>( &self, buf: &Buffer, offset: u64, out: &mut [T], ) -> Result<()>

read a buffer’s contents at offset (copies through a readback buffer when needed, submits and waits for the GPU: the slow path, for tools and tests)

Trait Implementations

impl Clone for Queue

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.