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Use cached projection matrix

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This commit is contained in:
Manish Goregaokar 2020-05-13 14:14:06 -07:00
parent 708824700f
commit eaad692c0b
1 changed files with 5 additions and 13 deletions
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18
components/script/dom/xrview.rs
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@ -25,7 +25,6 @@ pub struct XRView {
proj: Heap<*mut JSObject>,
#[ignore_malloc_size_of = "defined in rust-webxr"]
view: View<ApiSpace>,
proj_array: Vec<f32>,
transform: Dom<XRRigidTransform>,
}
@ -34,7 +33,6 @@ impl XRView {
session: &XRSession,
transform: &XRRigidTransform,
eye: XREye,
proj_array: Vec<f32>,
view: View<ApiSpace>,
) -> XRView {
XRView {
@ -42,7 +40,6 @@ impl XRView {
session: Dom::from_ref(session),
eye,
proj: Heap::default(),
proj_array,
view,
transform: Dom::from_ref(transform),
}
@ -68,22 +65,15 @@ impl XRView {
let transform = pose.pre_transform(&offset);
let transform = XRRigidTransform::new(global, cast_transform(transform));
// row_major since euclid uses row vectors
let proj = view.projection.to_row_major_array();
let ret = reflect_dom_object(
reflect_dom_object(
Box::new(XRView::new_inherited(
session,
&transform,
eye,
(&proj).to_vec(),
view.cast_unit(),
)),
global,
);
let cx = global.get_cx();
create_typed_array(cx, &proj, &ret.proj);
ret
)
}
pub fn session(&self) -> &XRSession {
@ -101,7 +91,9 @@ impl XRViewMethods for XRView {
fn ProjectionMatrix(&self, _cx: JSContext) -> NonNull<JSObject> {
if self.proj.get().is_null() {
let cx = self.global().get_cx();
create_typed_array(cx, &self.proj_array, &self.proj);
// row_major since euclid uses row vectors
let proj = self.view.projection.to_row_major_array();
create_typed_array(cx, &proj, &self.proj);
}
NonNull::new(self.proj.get()).unwrap()
}