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Add profiling for WebXR

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This commit is contained in:
Manish Goregaokar 2020-02-19 17:23:39 -08:00
parent 52c9cce4c4
commit f3e1aba4e3
12 changed files with 93 additions and 9 deletions
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24
components/canvas_traits/webgl.rs
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@ -82,7 +82,11 @@ pub enum WebGLMsg {
WebGLSender<Option<WebXRSwapChainId>>,
),
/// Performs a buffer swap.
SwapBuffers(Vec<SwapChainId>, WebGLSender<()>),
///
/// The third field contains the time (in ns) when the request
/// was initiated. The u64 in the second field will be the time the
/// request is fulfilled
SwapBuffers(Vec<SwapChainId>, WebGLSender<u64>, u64),
/// Frees all resources and closes the thread.
Exit,
}
@ -195,9 +199,23 @@ impl WebGLMsgSender {
.map(|id| SwapChainId::Framebuffer(self.ctx_id, id))
.unwrap_or_else(|| SwapChainId::Context(self.ctx_id));
let (sender, receiver) = webgl_channel()?;
#[allow(unused)]
let mut time = 0;
#[cfg(feature = "xr-profile")]
{
time = time::precise_time_ns();
}
self.sender
.send(WebGLMsg::SwapBuffers(vec![swap_id], sender))?;
receiver.recv()?;
.send(WebGLMsg::SwapBuffers(vec![swap_id], sender, time))?;
#[allow(unused)]
let sent_time = receiver.recv()?;
#[cfg(feature = "xr-profile")]
println!(
"WEBXR PROFILING [swap complete]:\t{}ms",
(time::precise_time_ns() - sent_time) as f64 / 1_000_000.
);
Ok(())
}