Struct CounterSampleBuffer 

pub struct CounterSampleBuffer(/* private fields */);

A buffer that stores GPU counter samples.

C++ equivalent: MTL::CounterSampleBuffer

Counter sample buffers are created from a device using a descriptor. They store sampled counter values that can be resolved to get the results.

Implementations

impl CounterSampleBuffer

pub unsafe fn from_raw(ptr: *mut c_void) -> Option<Self>

Create from a raw pointer.

Safety

The pointer must be a valid Metal counter sample buffer.

pub fn as_raw(&self) -> *mut c_void

Get the raw pointer.

pub fn device(&self) -> Device

Get the device that created this buffer.

C++ equivalent: Device* device() const

pub fn label(&self) -> Option<String>

Get the label for this buffer.

C++ equivalent: NS::String* label() const

pub fn sample_count(&self) -> UInteger

Get the number of samples in this buffer.

C++ equivalent: NS::UInteger sampleCount() const

pub fn resolve_counter_range_raw( &self, location: UInteger, length: UInteger, ) -> Result<*mut c_void, CounterSampleBufferError>

Resolve counter values for a range of samples.

Returns the raw NSData pointer containing the resolved counter values. The data format depends on the counter set used.

C++ equivalent: NS::Data* resolveCounterRange(NS::Range)

Trait Implementations

impl Clone for CounterSampleBuffer

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CounterSampleBuffer

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

Formats the value using the given formatter.

impl Drop for CounterSampleBuffer

fn drop(&mut self)

Executes the destructor for this type.

impl Referencing for CounterSampleBuffer

fn as_ptr(&self) -> *const c_void

Get the raw pointer to the Objective-C object.

fn as_mut_ptr(&self) -> *mut c_void

Get the raw mutable pointer to the Objective-C object.

fn retain(&self) -> Self

where Self: Clone,

Retain the object, incrementing its reference count.

fn release(&self)

Release the object, decrementing its reference count.

fn autorelease(&self) -> Self

where Self: Clone,

Autorelease the object.

fn retain_count(&self) -> usize

Get the retain count of the object.

impl Send for CounterSampleBuffer

impl Sync for CounterSampleBuffer