Struct VulkanFrameAccessGuard 

pub struct VulkanFrameAccessGuard<'a> { /* private fields */ }

Guard for one locked FFmpeg frame and queue handoff.

Safe code cannot change what is written back: an unsignaled timeline value hangs later users and a wrong layout makes the contents undefined.

let mut guard = lease.lock_access().unwrap();
guard.access_mut().frame_mut().semaphore_values[0] += 1000;
guard.commit();

Implementations

impl VulkanFrameAccessGuard<'_>

pub const fn access(&self) -> &VulkanFrameAccess

The frame’s state while its FFmpeg locks are held.

pub const unsafe fn access_mut(&mut self) -> &mut VulkanFrameAccess

The record written back on Self::commit. Planes whose image or semaphore changed and timeline values below the frame’s are ignored.

Safety

On commit, each layout and access mask must be what the submitted work leaves the image in, and each timeline value one that work submitted before the guard drops signals.

pub fn commit(&mut self)

Commits updated synchronization values when the guard is released.

Trait Implementations

impl Drop for VulkanFrameAccessGuard<'_>

Available on Linux and crate feature hwdevice only.

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.