mew::bindgroup

Trait MewBindGroup

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pub trait MewBindGroup {
    type BufferSet;
    type BufferArray<T>;

    // Required methods
    fn new(bind_group: BindGroup, buffers: Self::BufferSet) -> Self;
    fn layout_entries() -> &'static Self::BufferArray<BindGroupLayoutEntry>;
    fn layout_desc() -> BindGroupLayoutDescriptor<'static>;
    fn layout_desc_with<'a>(
        entries: &'a Self::BufferArray<BindGroupLayoutEntry>,
    ) -> BindGroupLayoutDescriptor<'a>;
    fn bind_group_entries(
        buffers: &Self::BufferSet,
    ) -> Self::BufferArray<BindGroupEntry<'_>>;
    fn bind_group_desc<'a>(
        layout: &'a MewBindGroupLayout<Self>,
        entries: &'a Self::BufferArray<BindGroupEntry<'_>>,
    ) -> BindGroupDescriptor<'a>;
}
Expand description

Trait for bind group wrapper types, to get layouts and descriptors about the inner bind group.

The number of internal buffers must be defined in the generic parameter, because associated consts are “uNsTAbLe”, apparently.

Ideally, avoid using this - it’s horribly designed, so just use the bind_group macro.

Required Associated Types§

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type BufferSet

A tuple of the bind group’s internal buffers.

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type BufferArray<T>

A generic array the length of the number of buffers (literally [T; N]).

Required Methods§

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fn new(bind_group: BindGroup, buffers: Self::BufferSet) -> Self

Construct by pairing the bind group with its buffers.

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fn layout_entries() -> &'static Self::BufferArray<BindGroupLayoutEntry>

Get an array of layout entries for all child buffers.

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fn layout_desc() -> BindGroupLayoutDescriptor<'static>

Get a static layout descriptor.

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fn layout_desc_with<'a>( entries: &'a Self::BufferArray<BindGroupLayoutEntry>, ) -> BindGroupLayoutDescriptor<'a>

Get a layout descriptor using dynamic layout entries (not recommended, I forgor why I put this in).

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fn bind_group_entries( buffers: &Self::BufferSet, ) -> Self::BufferArray<BindGroupEntry<'_>>

Get an array of bind group entries, for use with Self::bind_group_desc. Necessary to keep borrow checker happy.

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fn bind_group_desc<'a>( layout: &'a MewBindGroupLayout<Self>, entries: &'a Self::BufferArray<BindGroupEntry<'_>>, ) -> BindGroupDescriptor<'a>

Get a bind group descriptor using its layout and an array of its entries from Self::bind_group_entries.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§