Struct ndk::hardware_buffer::HardwareBufferRef

pub struct HardwareBufferRef { /* fields omitted */ }

A HardwareBuffer with an owned reference, the reference is released when dropped. It behaves much like a strong Rc reference.

Methods from Deref<Target = HardwareBuffer>

pub unsafe fn to_jni(&self, env: *mut JNIEnv) -> jobject

Safety

By calling this function, you assert that env is a valid pointer to a JNIEnv.

pub fn describe(&self) -> HardwareBufferDesc

pub fn lock(
    &self,
    usage: HardwareBufferUsage,
    fence: Option<RawFd>,
    rect: Option<Rect>
) -> Result<*mut c_void>

pub fn lock_and_get_info(
    &self,
    usage: HardwareBufferUsage,
    fence: Option<RawFd>,
    rect: Option<Rect>
) -> Result<LockedPlaneInfo>

pub fn lock_planes(
    &self,
    usage: HardwareBufferUsage,
    fence: Option<RawFd>,
    rect: Option<Rect>
) -> Result<HardwareBufferPlanes>

pub fn unlock(&self) -> Result<()>

pub fn unlock_async(&self) -> Result<Option<RawFd>>

Returns a fence file descriptor that will become signalled when unlocking is completed, or None if unlocking is already finished.

pub fn send_handle_to_unix_socket(&self, socket_fd: RawFd) -> Result<()>

pub fn acquire(&self) -> HardwareBufferRef

Trait Implementations

impl Debug for HardwareBufferRef

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

Formats the value using the given formatter.

impl Deref for HardwareBufferRef

type Target = HardwareBuffer

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Drop for HardwareBufferRef

fn drop(&mut self)

Executes the destructor for this type.