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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use crate::Floor;
use crate::HitTestId;
use crate::HitTestResult;
use crate::InputFrame;
use crate::Native;
use crate::SubImages;
use crate::Viewer;
use crate::Viewports;
use crate::Views;
use euclid::RigidTransform3D;
/// The per-frame data that is provided by the device.
/// https://www.w3.org/TR/webxr/#xrframe
// TODO: other fields?
#[derive(Clone, Debug)]
#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
pub struct Frame {
/// The pose information of the viewer
pub pose: Option<ViewerPose>,
/// Frame information for each connected input source
pub inputs: Vec<InputFrame>,
/// Events that occur with the frame.
pub events: Vec<FrameUpdateEvent>,
/// The subimages to render to
pub sub_images: Vec<SubImages>,
/// The hit test results for this frame, if any
pub hit_test_results: Vec<HitTestResult>,
/// The average point in time this XRFrame is expected to be displayed on the devices' display
pub predicted_display_time: f64,
}
#[derive(Clone, Debug)]
#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
pub enum FrameUpdateEvent {
UpdateFloorTransform(Option<RigidTransform3D<f32, Native, Floor>>),
UpdateViewports(Viewports),
HitTestSourceAdded(HitTestId),
}
#[derive(Clone, Debug)]
#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
pub struct ViewerPose {
/// The transform from the viewer to native coordinates
///
/// This is equivalent to the pose of the viewer in native coordinates.
/// This is the inverse of the view matrix.
pub transform: RigidTransform3D<f32, Viewer, Native>,
// The various views
pub views: Views,
}
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