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Moved Canvas rendering to a single thread.

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This commit is contained in:
Brody-Eastwood 2018-04-22 20:21:38 -04:00
parent 05fe8fa08d
commit f3065f3707
6 changed files with 1270 additions and 1111 deletions
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28
components/constellation/constellation.rs
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@ -330,8 +330,8 @@ pub struct Constellation<Message, LTF, STF> {
/// A channel through which messages can be sent to the webvr thread.
webvr_chan: Option<IpcSender<WebVRMsg>>,
/// An Id for the next canvas to use.
canvas_id: CanvasId,
/// A channel through which messages can be sent to the canvas paint thread.
canvas_chan: IpcSender<CanvasMsg>,
}
/// State needed to construct a constellation.
@ -630,7 +630,7 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
}),
webgl_threads: state.webgl_threads,
webvr_chan: state.webvr_chan,
canvas_id: CanvasId(0),
canvas_chan: CanvasPaintThread::start(),
};
constellation.run();
@ -2286,11 +2286,25 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
&mut self,
size: &Size2D<i32>,
response_sender: IpcSender<(IpcSender<CanvasMsg>, CanvasId)>) {
self.canvas_id.0 += 1;
let webrender_api = self.webrender_api_sender.clone();
let sender = CanvasPaintThread::start(*size, webrender_api,
opts::get().enable_canvas_antialiasing, self.canvas_id.clone());
if let Err(e) = response_sender.send((sender, self.canvas_id.clone())) {
let sender = self.canvas_chan.clone();
let (canvas_id_sender, canvas_id_receiver) = ipc::channel::<CanvasId>().expect("ipc channel failure");
if let Err(e) = sender.send(
CanvasMsg::Create(
canvas_id_sender,
*size,
webrender_api,
opts::get().enable_canvas_antialiasing
)
) {
return warn!("Create canvas paint thread failed ({})", e);
}
let canvas_id = match canvas_id_receiver.recv() {
Ok(canvas_id) => canvas_id,
Err(e) => return warn!("Create canvas paint thread id response failed ({})", e),
};
if let Err(e) = response_sender.send((sender, canvas_id.clone())) {
warn!("Create canvas paint thread response failed ({})", e);
}
}