Struct wgpu::BufferUsages

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pub struct BufferUsages(/* private fields */);
Expand description

Different ways that you can use a buffer.

The usages determine what kind of memory the buffer is allocated from and what actions the buffer can partake in.

Corresponds to WebGPU GPUBufferUsageFlags.

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impl BufferUsages

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pub const MAP_READ: BufferUsages = _

Allow a buffer to be mapped for reading using [Buffer::map_async] + [Buffer::get_mapped_range]. This does not include creating a buffer with BufferDescriptor::mapped_at_creation set.

If Features::MAPPABLE_PRIMARY_BUFFERS isn’t enabled, the only other usage a buffer may have is COPY_DST.

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pub const MAP_WRITE: BufferUsages = _

Allow a buffer to be mapped for writing using [Buffer::map_async] + [Buffer::get_mapped_range_mut]. This does not include creating a buffer with mapped_at_creation set.

If Features::MAPPABLE_PRIMARY_BUFFERS feature isn’t enabled, the only other usage a buffer may have is COPY_SRC.

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pub const COPY_SRC: BufferUsages = _

Allow a buffer to be the source buffer for a [CommandEncoder::copy_buffer_to_buffer] or [CommandEncoder::copy_buffer_to_texture] operation.

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pub const COPY_DST: BufferUsages = _

Allow a buffer to be the destination buffer for a [CommandEncoder::copy_buffer_to_buffer], [CommandEncoder::copy_texture_to_buffer], [CommandEncoder::clear_buffer] or [Queue::write_buffer] operation.

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pub const INDEX: BufferUsages = _

Allow a buffer to be the index buffer in a draw operation.

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pub const VERTEX: BufferUsages = _

Allow a buffer to be the vertex buffer in a draw operation.

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pub const UNIFORM: BufferUsages = _

Allow a buffer to be a BufferBindingType::Uniform inside a bind group.

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pub const STORAGE: BufferUsages = _

Allow a buffer to be a BufferBindingType::Storage inside a bind group.

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pub const INDIRECT: BufferUsages = _

Allow a buffer to be the indirect buffer in an indirect draw call.

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pub const QUERY_RESOLVE: BufferUsages = _

Allow a buffer to be the destination buffer for a [CommandEncoder::resolve_query_set] operation.

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impl BufferUsages

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pub const fn empty() -> BufferUsages

Get a flags value with all bits unset.

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pub const fn all() -> BufferUsages

Get a flags value with all known bits set.

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pub const fn bits(&self) -> u32

Get the underlying bits value.

The returned value is exactly the bits set in this flags value.

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pub const fn from_bits(bits: u32) -> Option<BufferUsages>

Convert from a bits value.

This method will return None if any unknown bits are set.

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pub const fn from_bits_truncate(bits: u32) -> BufferUsages

Convert from a bits value, unsetting any unknown bits.

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pub const fn from_bits_retain(bits: u32) -> BufferUsages

Convert from a bits value exactly.

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pub fn from_name(name: &str) -> Option<BufferUsages>

Get a flags value with the bits of a flag with the given name set.

This method will return None if name is empty or doesn’t correspond to any named flag.

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pub const fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

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pub const fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

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pub const fn intersects(&self, other: BufferUsages) -> bool

Whether any set bits in a source flags value are also set in a target flags value.

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pub const fn contains(&self, other: BufferUsages) -> bool

Whether all set bits in a source flags value are also set in a target flags value.

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pub fn insert(&mut self, other: BufferUsages)

The bitwise or (|) of the bits in two flags values.

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pub fn remove(&mut self, other: BufferUsages)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. remove won’t truncate other, but the ! operator will.

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pub fn toggle(&mut self, other: BufferUsages)

The bitwise exclusive-or (^) of the bits in two flags values.

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pub fn set(&mut self, other: BufferUsages, value: bool)

Call insert when value is true or remove when value is false.

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pub const fn intersection(self, other: BufferUsages) -> BufferUsages

The bitwise and (&) of the bits in two flags values.

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pub const fn union(self, other: BufferUsages) -> BufferUsages

The bitwise or (|) of the bits in two flags values.

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pub const fn difference(self, other: BufferUsages) -> BufferUsages

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

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pub const fn symmetric_difference(self, other: BufferUsages) -> BufferUsages

The bitwise exclusive-or (^) of the bits in two flags values.

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pub const fn complement(self) -> BufferUsages

The bitwise negation (!) of the bits in a flags value, truncating the result.

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impl BufferUsages

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pub const fn iter(&self) -> Iter<BufferUsages>

Yield a set of contained flags values.

Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.

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pub const fn iter_names(&self) -> IterNames<BufferUsages>

Yield a set of contained named flags values.

This method is like iter, except only yields bits in contained named flags. Any unknown bits, or bits not corresponding to a contained flag will not be yielded.

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impl BufferUsages

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pub fn contains_invalid_bits(&self) -> bool

Returns true if the bitflags contains bits that are not part of the bitflags definition.

Trait Implementations§

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impl Binary for BufferUsages

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

Formats the value using the given formatter.
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impl BitAnd for BufferUsages

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fn bitand(self, other: BufferUsages) -> BufferUsages

The bitwise and (&) of the bits in two flags values.

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type Output = BufferUsages

The resulting type after applying the & operator.
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impl BitAndAssign for BufferUsages

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fn bitand_assign(&mut self, other: BufferUsages)

The bitwise and (&) of the bits in two flags values.

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impl BitOr for BufferUsages

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fn bitor(self, other: BufferUsages) -> BufferUsages

The bitwise or (|) of the bits in two flags values.

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type Output = BufferUsages

The resulting type after applying the | operator.
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impl BitOrAssign for BufferUsages

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fn bitor_assign(&mut self, other: BufferUsages)

The bitwise or (|) of the bits in two flags values.

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impl BitXor for BufferUsages

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fn bitxor(self, other: BufferUsages) -> BufferUsages

The bitwise exclusive-or (^) of the bits in two flags values.

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type Output = BufferUsages

The resulting type after applying the ^ operator.
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impl BitXorAssign for BufferUsages

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fn bitxor_assign(&mut self, other: BufferUsages)

The bitwise exclusive-or (^) of the bits in two flags values.

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impl Clone for BufferUsages

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fn clone(&self) -> BufferUsages

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BufferUsages

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

Formats the value using the given formatter. Read more
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impl Extend<BufferUsages> for BufferUsages

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fn extend<T>(&mut self, iterator: T)
where T: IntoIterator<Item = BufferUsages>,

The bitwise or (|) of the bits in each flags value.

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fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
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fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)
Reserves capacity in a collection for the given number of additional elements. Read more
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impl Flags for BufferUsages

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const FLAGS: &'static [Flag<BufferUsages>] = _

The set of defined flags.
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type Bits = u32

The underlying bits type.
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fn bits(&self) -> u32

Get the underlying bits value. Read more
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fn from_bits_retain(bits: u32) -> BufferUsages

Convert from a bits value exactly.
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fn empty() -> Self

Get a flags value with all bits unset.
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fn all() -> Self

Get a flags value with all known bits set.
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fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from a bits value. Read more
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fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from a bits value, unsetting any unknown bits.
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fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set. Read more
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fn iter(&self) -> Iter<Self>

Yield a set of contained flags values. Read more
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fn iter_names(&self) -> IterNames<Self>

Yield a set of contained named flags values. Read more
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fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.
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fn is_all(&self) -> bool

Whether all known bits in this flags value are set.
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fn intersects(&self, other: Self) -> bool
where Self: Sized,

Whether any set bits in a source flags value are also set in a target flags value.
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fn contains(&self, other: Self) -> bool
where Self: Sized,

Whether all set bits in a source flags value are also set in a target flags value.
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fn insert(&mut self, other: Self)
where Self: Sized,

The bitwise or (|) of the bits in two flags values.
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fn remove(&mut self, other: Self)
where Self: Sized,

The intersection of a source flags value with the complement of a target flags value (&!). Read more
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fn toggle(&mut self, other: Self)
where Self: Sized,

The bitwise exclusive-or (^) of the bits in two flags values.
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fn set(&mut self, other: Self, value: bool)
where Self: Sized,

Call Flags::insert when value is true or Flags::remove when value is false.
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fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.
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fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in two flags values.
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fn difference(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!). Read more
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fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.
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fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.
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impl FromIterator<BufferUsages> for BufferUsages

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fn from_iter<T>(iterator: T) -> BufferUsages
where T: IntoIterator<Item = BufferUsages>,

The bitwise or (|) of the bits in each flags value.

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impl Hash for BufferUsages

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl IntoIterator for BufferUsages

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type Item = BufferUsages

The type of the elements being iterated over.
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type IntoIter = Iter<BufferUsages>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> <BufferUsages as IntoIterator>::IntoIter

Creates an iterator from a value. Read more
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impl LowerHex for BufferUsages

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

Formats the value using the given formatter.
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impl Not for BufferUsages

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fn not(self) -> BufferUsages

The bitwise negation (!) of the bits in a flags value, truncating the result.

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type Output = BufferUsages

The resulting type after applying the ! operator.
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impl Octal for BufferUsages

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

Formats the value using the given formatter.
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impl PartialEq for BufferUsages

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fn eq(&self, other: &BufferUsages) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Sub for BufferUsages

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fn sub(self, other: BufferUsages) -> BufferUsages

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

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type Output = BufferUsages

The resulting type after applying the - operator.
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impl SubAssign for BufferUsages

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fn sub_assign(&mut self, other: BufferUsages)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

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impl UpperHex for BufferUsages

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

Formats the value using the given formatter.
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impl Copy for BufferUsages

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impl Eq for BufferUsages

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impl StructuralEq for BufferUsages

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impl StructuralPartialEq for BufferUsages

Auto Trait Implementations§

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where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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Returns the argument unchanged.

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where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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Creates owned data from borrowed data, usually by cloning. Read more
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Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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Performs the conversion.
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