Struct vulkano::buffer::BufferSlice
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pub struct BufferSlice<T: ?Sized, B> { /* fields omitted */ }
A subpart of a buffer.
This object doesn't correspond to any Vulkan object. It exists for API convenience.
Example
Creating a slice:
use vulkano::buffer::BufferSlice; let _slice = BufferSlice::from(&buffer);
Selecting a slice of a buffer that contains [T]
:
use vulkano::buffer::BufferSlice; let _slice = BufferSlice::from(&buffer).slice(12 .. 14).unwrap();
Methods
impl<T: ?Sized, B> BufferSlice<T, B>
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fn from_typed_buffer_access(r: B) -> BufferSlice<T, B> where
B: TypedBufferAccess<Content = T>,
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B: TypedBufferAccess<Content = T>,
fn buffer(&self) -> &B
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Returns the buffer that this slice belongs to.
fn offset(&self) -> usize
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Returns the offset of that slice within the buffer.
fn size(&self) -> usize
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Returns the size of that slice in bytes.
unsafe fn slice_custom<F, R: ?Sized>(self, f: F) -> BufferSlice<R, B> where
F: for<'r> FnOnce(&'r T) -> &'r R,
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F: for<'r> FnOnce(&'r T) -> &'r R,
Builds a slice that contains an element from inside the buffer.
This method builds an object that represents a slice of the buffer. No actual operation is performed.
Example
TODO
Safety
The object whose reference is passed to the closure is uninitialized. Therefore you must not access the content of the object.
You must return a reference to an element from the parameter. The closure must not panic.
impl<T, B> BufferSlice<[T], B>
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fn len(&self) -> usize
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Returns the number of elements in this slice.
fn index(self, index: usize) -> Option<BufferSlice<T, B>>
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Reduces the slice to just one element of the array.
Returns None
if out of range.
fn slice(self, range: Range<usize>) -> Option<BufferSlice<[T], B>>
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Reduces the slice to just a range of the array.
Returns None
if out of range.
Trait Implementations
impl<T: ?Sized, B> Clone for BufferSlice<T, B> where
B: Clone,
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B: Clone,
fn clone(&self) -> Self
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl<T: ?Sized, B> BufferAccess for BufferSlice<T, B> where
B: BufferAccess,
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B: BufferAccess,
fn inner(&self) -> BufferInner
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Returns the inner information about this buffer.
fn size(&self) -> usize
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Returns the size of the buffer in bytes.
fn conflicts_buffer(&self, other: &BufferAccess) -> bool
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Returns true if an access to self
potentially overlaps the same memory as an access to other
. Read more
fn conflicts_image(&self, other: &ImageAccess) -> bool
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Returns true if an access to self
potentially overlaps the same memory as an access to other
. Read more
fn conflict_key(&self) -> u64
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Returns a key that uniquely identifies the buffer. Two buffers or images that potentially overlap in memory must return the same key. Read more
fn try_gpu_lock(
&self,
exclusive_access: bool,
queue: &Queue
) -> Result<(), AccessError>
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&self,
exclusive_access: bool,
queue: &Queue
) -> Result<(), AccessError>
Locks the resource for usage on the GPU. Returns an error if the lock can't be acquired. Read more
unsafe fn increase_gpu_lock(&self)
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Locks the resource for usage on the GPU. Supposes that the resource is already locked, and simply increases the lock by one. Read more
unsafe fn unlock(&self)
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Unlocks the resource previously acquired with try_gpu_lock
or increase_gpu_lock
. Read more
fn len(&self) -> usize where
Self: TypedBufferAccess,
Self::Content: Content,
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Self: TypedBufferAccess,
Self::Content: Content,
Returns the length of the buffer in number of elements. Read more
fn as_buffer_slice(&self) -> BufferSlice<Self::Content, &Self> where
Self: Sized + TypedBufferAccess,
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Self: Sized + TypedBufferAccess,
Builds a BufferSlice
object holding the buffer by reference.
fn slice<T>(&self, range: Range<usize>) -> Option<BufferSlice<[T], &Self>> where
Self: Sized + TypedBufferAccess<Content = [T]>,
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Self: Sized + TypedBufferAccess<Content = [T]>,
Builds a BufferSlice
object holding part of the buffer by reference. Read more
fn into_buffer_slice(self) -> BufferSlice<Self::Content, Self> where
Self: Sized + TypedBufferAccess,
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Self: Sized + TypedBufferAccess,
Builds a BufferSlice
object holding the buffer by value.
fn index<T>(&self, index: usize) -> Option<BufferSlice<[T], &Self>> where
Self: Sized + TypedBufferAccess<Content = [T]>,
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Self: Sized + TypedBufferAccess<Content = [T]>,
Builds a BufferSlice
object holding part of the buffer by reference. Read more
impl<T: ?Sized, B> TypedBufferAccess for BufferSlice<T, B> where
B: BufferAccess,
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B: BufferAccess,
type Content = T
The type of the content.
impl<T: ?Sized, B> DeviceOwned for BufferSlice<T, B> where
B: DeviceOwned,
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B: DeviceOwned,
impl<T, B> From<BufferSlice<T, B>> for BufferSlice<[T], B>
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fn from(r: BufferSlice<T, B>) -> BufferSlice<[T], B>
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Performs the conversion.