migrations/egui
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[demo] add frame time graph to demo app

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This commit is contained in:
Emil Ernerfeldt
2020-10-01 22:25:44 +02:00
parent 1156525ce9
commit 6fcfb52aa0
18 changed files with 371 additions and 130 deletions
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15
egui_web/src/backend.rs
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@@ -10,7 +10,7 @@ pub use egui::{
pub struct WebBackend {
ctx: Arc<egui::Context>,
painter: webgl::Painter,
frame_times: egui::MovementTracker<f32>,
previous_frame_time: Option<f32>,
frame_start: Option<f64>,
last_save_time: Option<f64>,
}
@@ -22,7 +22,7 @@ impl WebBackend {
Ok(Self {
ctx,
painter: webgl::Painter::new(canvas_id)?,
frame_times: egui::MovementTracker::new(1000, 1.0),
previous_frame_time: None,
frame_start: None,
last_save_time: None,
})
@@ -50,7 +50,7 @@ impl WebBackend {
self.auto_save();
let now = now_sec();
self.frame_times.add(now, (now - frame_start) as f32);
self.previous_frame_time = Some((now - frame_start) as f32);
Ok((output, paint_jobs))
}
@@ -87,13 +87,8 @@ impl Backend for WebBackend {
})
}
/// excludes painting
fn cpu_time(&self) -> f32 {
self.frame_times.average().unwrap_or_default()
}
fn fps(&self) -> f32 {
1.0 / self.frame_times.mean_time_interval().unwrap_or_default()
fn cpu_usage(&self) -> Option<f32> {
self.previous_frame_time
}
fn seconds_since_midnight(&self) -> Option<f64> {