leaprs/events/
interpolation_tracking_event.rs

1use std::ops::Deref;
2
3use crate::{sized_with_trailing_data::SizedWithTrailingData, FrameHeaderRef, HandRef};
4use leap_sys::LEAP_TRACKING_EVENT;
5
6/// # Fields
7/// Available via dereference: [LEAP_TRACKING_EVENT].
8pub struct InterpolationTrackingEvent(pub(crate) Box<SizedWithTrailingData<LEAP_TRACKING_EVENT>>);
9
10impl InterpolationTrackingEvent {
11    /// Allocate a LEAP_TRACKING_EVENT with more data contiguous to it.
12    /// Unsafe: inner struct is uninitialized
13    pub(crate) unsafe fn new_uninitialized(requested_frame_size: u64) -> Self {
14        let trailing_size =
15            requested_frame_size as usize - std::mem::size_of::<LEAP_TRACKING_EVENT>();
16        Self(SizedWithTrailingData::allocate(
17            std::mem::zeroed(),
18            trailing_size,
19        ))
20    }
21
22    #[doc = " A universal frame identification header. @since 3.0.0"]
23    pub fn info(&self) -> FrameHeaderRef {
24        FrameHeaderRef(&self.info)
25    }
26
27    #[doc = " A pointer to the array of hands tracked in this frame."]
28    #[doc = " @since 3.0.0"]
29    pub fn hands(&self) -> Vec<HandRef> {
30        let n_hand = self.nHands as isize;
31        unsafe {
32            (0..n_hand)
33                .map(|hand_index| &*self.pHands.offset(hand_index))
34                .map(HandRef)
35                .collect()
36        }
37    }
38}
39
40impl Deref for InterpolationTrackingEvent {
41    type Target = LEAP_TRACKING_EVENT;
42
43    fn deref(&self) -> &Self::Target {
44        &self.0.sized
45    }
46}
leaprs/events/interpolation_tracking_event.rs

leaprs/events/
interpolation_tracking_event.rs
