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Use webvr future_frame_data to avoid blocking the WebGL thread

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This commit is contained in:
Alan Jeffrey 2019-02-25 11:44:26 -06:00
parent a28e15e4ea
commit c9087013b1
7 changed files with 23 additions and 17 deletions
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10
components/script/dom/vrdisplay.rs
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@ -42,13 +42,13 @@ use crossbeam_channel::{unbounded, Sender};
use dom_struct::dom_struct;
use ipc_channel::ipc::IpcSender;
use profile_traits::ipc;
use serde_bytes::ByteBuf;
use std::cell::Cell;
use std::mem;
use std::ops::Deref;
use std::rc::Rc;
use std::thread;
use webvr_traits::{WebVRDisplayData, WebVRDisplayEvent, WebVRFrameData, WebVRLayer, WebVRMsg};
use webvr_traits::{WebVRDisplayData, WebVRDisplayEvent, WebVRFrameData, WebVRFutureFrameData};
use webvr_traits::{WebVRLayer, WebVRMsg};
#[dom_struct]
pub struct VRDisplay {
@ -77,7 +77,7 @@ pub struct VRDisplay {
// Compositor VRFrameData synchonization
frame_data_status: Cell<VRFrameDataStatus>,
#[ignore_malloc_size_of = "closures are hard"]
frame_data_receiver: DomRefCell<Option<WebGLReceiver<Result<ByteBuf, ()>>>>,
frame_data_receiver: DomRefCell<Option<WebGLReceiver<Result<WebVRFutureFrameData, ()>>>>,
running_display_raf: Cell<bool>,
paused: Cell<bool>,
stopped_on_pause: Cell<bool>,
@ -664,8 +664,8 @@ impl VRDisplay {
fn sync_frame_data(&self) {
let status = if let Some(receiver) = self.frame_data_receiver.borrow().as_ref() {
match receiver.recv().unwrap() {
Ok(bytes) => {
*self.frame_data.borrow_mut() = WebVRFrameData::from_bytes(&bytes[..]);
Ok(future_data) => {
*self.frame_data.borrow_mut() = future_data.block();
VRFrameDataStatus::Synced
},
Err(()) => VRFrameDataStatus::Exit,