mirror of
https://github.com/servo/servo.git
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121 lines
3.9 KiB
Rust
121 lines
3.9 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use crate::dom::bindings::codegen::Bindings::FakeXRDeviceBinding::{
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self, FakeXRDeviceMethods, FakeXRRigidTransformInit, FakeXRViewInit,
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};
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use crate::dom::bindings::codegen::Bindings::XRViewBinding::XREye;
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use crate::dom::bindings::error::{Error, Fallible};
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use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::globalscope::GlobalScope;
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use dom_struct::dom_struct;
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use webvr_traits::{MockVRControlMsg, MockVRView, WebVRMsg};
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#[dom_struct]
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pub struct FakeXRDevice {
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reflector: Reflector,
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}
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impl FakeXRDevice {
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pub fn new_inherited() -> FakeXRDevice {
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FakeXRDevice {
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reflector: Reflector::new(),
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}
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}
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pub fn new(global: &GlobalScope) -> DomRoot<FakeXRDevice> {
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reflect_dom_object(
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Box::new(FakeXRDevice::new_inherited()),
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global,
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FakeXRDeviceBinding::Wrap,
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)
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}
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fn send_msg(&self, msg: MockVRControlMsg) {
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self.global()
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.as_window()
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.webvr_thread()
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.unwrap()
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.send(WebVRMsg::MessageMockDisplay(msg))
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.unwrap();
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}
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}
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pub fn get_views(views: &[FakeXRViewInit]) -> Fallible<(MockVRView, MockVRView)> {
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if views.len() != 2 {
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return Err(Error::NotSupported);
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}
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let (left, right) = match (views[0].eye, views[1].eye) {
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(XREye::Left, XREye::Right) => (&views[0], &views[1]),
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(XREye::Right, XREye::Left) => (&views[1], &views[0]),
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_ => return Err(Error::NotSupported),
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};
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if left.projectionMatrix.len() != 16 ||
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right.projectionMatrix.len() != 16 ||
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left.viewOffset.position.len() != 3 ||
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right.viewOffset.position.len() != 3
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{
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return Err(Error::Type("Incorrectly sized array".into()));
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}
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let mut proj_l = [0.; 16];
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let mut proj_r = [0.; 16];
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let v: Vec<_> = left.projectionMatrix.iter().map(|x| **x).collect();
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proj_l.copy_from_slice(&v);
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let v: Vec<_> = right.projectionMatrix.iter().map(|x| **x).collect();
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proj_r.copy_from_slice(&v);
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let mut offset_l = [0.; 3];
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let mut offset_r = [0.; 3];
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let v: Vec<_> = left.viewOffset.position.iter().map(|x| **x).collect();
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offset_l.copy_from_slice(&v);
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let v: Vec<_> = right.viewOffset.position.iter().map(|x| **x).collect();
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offset_r.copy_from_slice(&v);
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let left = MockVRView {
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projection: proj_l,
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offset: offset_l,
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};
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let right = MockVRView {
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projection: proj_r,
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offset: offset_r,
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};
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Ok((left, right))
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}
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pub fn get_origin(origin: &FakeXRRigidTransformInit) -> Fallible<([f32; 3], [f32; 4])> {
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if origin.position.len() != 3 || origin.orientation.len() != 4 {
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return Err(Error::Type("Incorrectly sized array".into()));
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}
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let mut p = [0.; 3];
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let mut o = [0.; 4];
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let v: Vec<_> = origin.position.iter().map(|x| **x).collect();
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p.copy_from_slice(&v[0..3]);
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let v: Vec<_> = origin.orientation.iter().map(|x| **x).collect();
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o.copy_from_slice(&v);
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Ok((p, o))
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}
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impl FakeXRDeviceMethods for FakeXRDevice {
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/// https://github.com/immersive-web/webxr-test-api/blob/master/explainer.md
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fn SetViews(&self, views: Vec<FakeXRViewInit>) -> Fallible<()> {
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let (left, right) = get_views(&views)?;
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self.send_msg(MockVRControlMsg::SetViews(left, right));
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Ok(())
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}
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/// https://github.com/immersive-web/webxr-test-api/blob/master/explainer.md
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fn SetViewerOrigin(
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&self,
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origin: &FakeXRRigidTransformInit,
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_emulated_position: bool,
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) -> Fallible<()> {
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let (position, orientation) = get_origin(origin)?;
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self.send_msg(MockVRControlMsg::SetViewerPose(position, orientation));
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Ok(())
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}
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}
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