Enum StructuredBuffer 

pub enum StructuredBuffer<P: PackedField, Data: Deref<Target = [P]>> {
    Buffer(FieldBuffer<P, Data>),
    ZeroPadded {
        inner: Box<Self>,
        log_n_blocks: usize,
        index: usize,
    },
}

A field buffer that may hold explicit values for only one aligned block, and zero elsewhere.

Passing the structure along lets a consumer that understands it skip the zeros. A consumer that does not calls Self::materialize.

Variants

Buffer(FieldBuffer<P, Data>)

Every value held explicitly.

ZeroPadded

inner placed in block index of 2^log_n_blocks equal blocks, and zero everywhere else.

Fields

inner: Box<Self>

log_n_blocks: usize

index: usize

Index in the range 0..1 << log_n_blocks.

Implementations

impl<P: PackedField, Data: Deref<Target = [P]>> StructuredBuffer<P, Data>

pub fn log_len(&self) -> usize

Returns the base-2 logarithm of the number of field elements.

impl<P: PackedField, Data: VecLike<P>> StructuredBuffer<P, Data>

pub fn materialize<A>(self, alloc: &A) -> FieldBuffer<P, Data>

where A: Allocator<Vec<P> = Data>,

Writes out every value, zeros included, as one buffer.

A buffer already holding every value is returned with no copy.

Trait Implementations

impl<P: Clone + PackedField, Data: Clone + Deref<Target = [P]>> Clone for StructuredBuffer<P, Data>

fn clone(&self) -> StructuredBuffer<P, Data>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<P: Debug + PackedField, Data: Debug + Deref<Target = [P]>> Debug for StructuredBuffer<P, Data>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<P: PackedField, Data: Deref<Target = [P]>> From<FieldBuffer<P, Data>> for StructuredBuffer<P, Data>

fn from(buffer: FieldBuffer<P, Data>) -> Self

Converts to this type from the input type.