blob: 1539e8b51785f1d8eec75a6b17eb15613fae5ce2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/* exported getTargetForSelectedTab, waitFor, plotFPS */
"use strict";
const { require } = ChromeUtils.import("resource://devtools/shared/Loader.jsm");
const { TargetFactory } = require("devtools/client/framework/target");
const Services = require("Services");
// Always log packets when running tests.
Services.prefs.setBoolPref("devtools.debugger.log", true);
SimpleTest.registerCleanupFunction(function() {
Services.prefs.clearUserPref("devtools.debugger.log");
});
SimpleTest.waitForExplicitFinish();
/**
* Add a new test tab in the browser and load the given url.
* @return Promise a promise that resolves to the new target representing
* the page currently opened.
*/
function getTargetForSelectedTab() {
// Get the target and get the necessary front
const { gBrowser } = Services.wm.getMostRecentWindow("navigator:browser");
return TargetFactory.forTab(gBrowser.selectedTab);
}
function waitFor(time) {
return new Promise(resolve => setTimeout(resolve, time));
}
function plotFPS(ticks, interval = 100, clamp = 60) {
const timeline = [];
const totalTicks = ticks.length;
// If the refresh driver didn't get a chance to tick before the
// recording was stopped, assume framerate was 0.
if (totalTicks == 0) {
timeline.push({ delta: 0, value: 0 });
timeline.push({ delta: interval, value: 0 });
return timeline;
}
let frameCount = 0;
let prevTime = ticks[0];
for (let i = 1; i < totalTicks; i++) {
const currTime = ticks[i];
frameCount++;
const elapsedTime = currTime - prevTime;
if (elapsedTime < interval) {
continue;
}
const framerate = Math.min(1000 / (elapsedTime / frameCount), clamp);
timeline.push({ delta: prevTime, value: framerate });
timeline.push({ delta: currTime, value: framerate });
frameCount = 0;
prevTime = currTime;
}
return timeline;
}
|
