#[repr(transparent)]
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: Self = _

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: Self = _

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: Self = _

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: Self = _

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: Self = _

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

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pub const VERTEX: Self = _

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

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pub const UNIFORM: Self = _

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

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pub const STORAGE: Self = _

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

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pub const INDIRECT: Self = _

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

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pub const fn empty() -> Self

Returns an empty set of flags.

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pub const fn all() -> Self

Returns the set containing all flags.

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pub const fn bits(&self) -> u32

Returns the raw value of the flags currently stored.

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

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

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

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

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pub const unsafe fn from_bits_unchecked(bits: u32) -> Self

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

Safety

The caller of the bitflags! macro can chose to allow or disallow extra bits for their bitflags type.

The caller of from_bits_unchecked() has to ensure that all bits correspond to a defined flag or that extra bits are valid for this bitflags type.

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pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

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pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

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

Returns true if there are flags common to both self and other.

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

Returns true if all of the flags in other are contained within self.

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

Inserts the specified flags in-place.

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

Removes the specified flags in-place.

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

Toggles the specified flags in-place.

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

Inserts or removes the specified flags depending on the passed value.

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

Returns the intersection between the flags in self and other.

Specifically, the returned set contains only the flags which are present in both self and other.

This is equivalent to using the & operator (e.g. ops::BitAnd), as in flags & other.

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

Returns the union of between the flags in self and other.

Specifically, the returned set contains all flags which are present in either self or other, including any which are present in both (see Self::symmetric_difference if that is undesirable).

This is equivalent to using the | operator (e.g. ops::BitOr), as in flags | other.

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

Returns the difference between the flags in self and other.

Specifically, the returned set contains all flags present in self, except for the ones present in other.

It is also conceptually equivalent to the “bit-clear” operation: flags & !other (and this syntax is also supported).

This is equivalent to using the - operator (e.g. ops::Sub), as in flags - other.

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

Returns the symmetric difference between the flags in self and other.

Specifically, the returned set contains the flags present which are present in self or other, but that are not present in both. Equivalently, it contains the flags present in exactly one of the sets self and other.

This is equivalent to using the ^ operator (e.g. ops::BitXor), as in flags ^ other.

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pub const fn complement(self) -> Self

Returns the complement of this set of flags.

Specifically, the returned set contains all the flags which are not set in self, but which are allowed for this type.

Alternatively, it can be thought of as the set difference between Self::all() and self (e.g. Self::all() - self)

This is equivalent to using the ! operator (e.g. ops::Not), as in !flags.

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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

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

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

Returns the intersection between the two sets of flags.

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type Output = BufferUsages

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

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fn bitand_assign(&mut self, other: Self)

Disables all flags disabled in the set.

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impl BitOr<BufferUsages> for BufferUsages

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

Returns the union of the two sets of flags.

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type Output = BufferUsages

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

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fn bitor_assign(&mut self, other: Self)

Adds the set of flags.

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impl BitXor<BufferUsages> for BufferUsages

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

Returns the left flags, but with all the right flags toggled.

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type Output = BufferUsages

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

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fn bitxor_assign(&mut self, other: Self)

Toggles the set of flags.

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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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for BufferUsages

Available on crate feature replay only.
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fn deserialize<D>(deserializer: D) -> Result<BufferUsages, D::Error>where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Extend<BufferUsages> for BufferUsages

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

Extends a collection with the contents of an iterator. Read more
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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 FromIterator<BufferUsages> for BufferUsages

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fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

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

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

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 LowerHex for BufferUsages

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

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

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fn not(self) -> Self

Returns the complement of this set of flags.

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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

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

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fn cmp(&self, other: &BufferUsages) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl PartialEq<BufferUsages> 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 PartialOrd<BufferUsages> for BufferUsages

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fn partial_cmp(&self, other: &BufferUsages) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Serialize for BufferUsages

Available on crate feature trace only.
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>where S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Sub<BufferUsages> for BufferUsages

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

Returns the set difference of the two sets of flags.

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type Output = BufferUsages

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

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fn sub_assign(&mut self, other: Self)

Disables all flags enabled in the set.

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impl UpperHex for BufferUsages

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

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§

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

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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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,