Struct CVPixelBufferLockFlags 

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

Lock flags for CVPixelBuffer

This is a bitmask type matching Apple’s CVPixelBufferLockFlags.

Examples

use apple_cf::cv::CVPixelBufferLockFlags;

// Read-only lock
let flags = CVPixelBufferLockFlags::READ_ONLY;
assert!(flags.is_read_only());

// Read-write lock (default)
let flags = CVPixelBufferLockFlags::NONE;
assert!(!flags.is_read_only());

Implementations

impl CVPixelBufferLockFlags

pub const NONE: CVPixelBufferLockFlags

No special options (read-write lock)

pub const READ_ONLY: CVPixelBufferLockFlags

Read-only lock - use when you only need to read data. This allows Core Video to keep caches valid.

pub const fn from_bits(bits: u32) -> CVPixelBufferLockFlags

Create from a raw u32 value

pub const fn as_u32(self) -> u32

Convert to u32 for FFI

pub const fn is_read_only(self) -> bool

Check if this is a read-only lock

pub const fn is_empty(self) -> bool

Check if no flags are set (read-write lock)

Trait Implementations

impl Clone for CVPixelBufferLockFlags

fn clone(&self) -> CVPixelBufferLockFlags

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CVPixelBufferLockFlags

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

Formats the value using the given formatter.

impl Default for CVPixelBufferLockFlags

fn default() -> CVPixelBufferLockFlags

Returns the “default value” for a type.

impl Hash for CVPixelBufferLockFlags

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

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CVPixelBufferLockFlags

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for CVPixelBufferLockFlags

impl Eq for CVPixelBufferLockFlags

impl StructuralPartialEq for CVPixelBufferLockFlags