Struct vulkano::descriptor::descriptor_set::FixedSizeDescriptorSetsPool

pub struct FixedSizeDescriptorSetsPool { /* fields omitted */ }

Pool of descriptor sets of a specific capacity and that are automatically reclaimed.

You are encouraged to use this type when you need a different descriptor set at each frame, or regularly during the execution.

Example

At initialization, create a FixedSizeDescriptorSetsPool.

use vulkano::descriptor::descriptor_set::FixedSizeDescriptorSetsPool;
use vulkano::descriptor::pipeline_layout::PipelineLayoutAbstract;
// use vulkano::pipeline::GraphicsPipelineAbstract;
// let graphics_pipeline: Arc<GraphicsPipelineAbstract> = ...;

let layout = graphics_pipeline.descriptor_set_layout(0).unwrap();
let pool = FixedSizeDescriptorSetsPool::new(layout.clone());

You would then typically store the pool in a struct for later. Then whenever you need a descriptor set, call pool.next() to start the process of building it.

let descriptor_set = pool.next()
    //.add_buffer(...)
    //.add_sampled_image(...)
    .build().unwrap();

Note that next() requires exclusive (mut) access to the pool. You can use a Mutex around the pool if you can't provide this.

Methods

impl FixedSizeDescriptorSetsPool

pub fn new(
    layout: Arc<UnsafeDescriptorSetLayout>
) -> FixedSizeDescriptorSetsPool

Initializes a new pool. The pool is configured to allocate sets that corresponds to the parameters passed to this function.

pub fn next(&mut self) -> FixedSizeDescriptorSetBuilder<()>

Starts the process of building a new descriptor set.

The set will corresponds to the set layout that was passed to new.

Trait Implementations

impl Clone for FixedSizeDescriptorSetsPool

fn clone(&self) -> FixedSizeDescriptorSetsPool

Returns a copy of the value.

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

Performs copy-assignment from source.