Struct vulkano::descriptor::descriptor_set::PersistentDescriptorSet

pub struct PersistentDescriptorSet<R, P = StdDescriptorPoolAlloc> { /* fields omitted */ }

An immutable descriptor set that is expected to be long-lived.

Creating a persistent descriptor set allocates from a pool, and can't be modified once created. You are therefore encouraged to create them at initialization and not the during performance-critical paths.

Note: You can control of the pool that is used to create the descriptor set, if you wish so. By creating a implementation of the DescriptorPool trait that doesn't perform any actual allocation, you can skip this allocation and make it acceptable to use a persistent descriptor set in performance-critical paths..

The template parameter of the PersistentDescriptorSet is complex, and you shouldn't try to express it explicitely. If you want to store your descriptor set in a struct or in a Vec for example, you are encouraged to turn the PersistentDescriptorSet into a Box<DescriptorSet> or a Arc<DescriptorSet>.

Example

Methods

impl PersistentDescriptorSet<()>

fn start<Pl>(
    layout: Pl,
    set_id: usize
) -> PersistentDescriptorSetBuilder<Pl, ()> where
    Pl: PipelineLayoutAbstract, 

Starts the process of building a PersistentDescriptorSet. Returns a builder.

Panic

• Panics if the set id is out of range.

Trait Implementations

impl<R, P> DescriptorSet for PersistentDescriptorSet<R, P> where
    P: DescriptorPoolAlloc, 

fn inner(&self) -> &UnsafeDescriptorSet

Returns the inner UnsafeDescriptorSet.

fn buffers_list<'a>(&'a self) -> Box<Iterator<Item = &'a BufferAccess> + 'a>

Returns the list of buffers used by this descriptor set. Includes buffer views.

fn images_list<'a>(&'a self) -> Box<Iterator<Item = &'a ImageAccess> + 'a>

Returns the list of images used by this descriptor set. Includes image views.

impl<R, P> DescriptorSetDesc for PersistentDescriptorSet<R, P>

fn num_bindings(&self) -> usize

Returns the number of binding slots in the set.

fn descriptor(&self, binding: usize) -> Option<DescriptorDesc>

Returns a description of a descriptor, or None if out of range.

impl<R, P> DeviceOwned for PersistentDescriptorSet<R, P> where
    P: DeviceOwned, 

fn device(&self) -> &Arc<Device>

Returns the device that owns Self.