| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| <link rel="import" href="/tracing/base/base.html"> |
| |
| <script> |
| 'use strict'; |
| |
| /** |
| * @fileoverview Utilities for accessing trace data about the Chrome browser. |
| */ |
| tr.exportTo('tr.model.helpers', function() { |
| var MAIN_FRAMETIME_TYPE = 'main_frametime_type'; |
| var IMPL_FRAMETIME_TYPE = 'impl_frametime_type'; |
| |
| var MAIN_RENDERING_STATS = |
| 'BenchmarkInstrumentation::MainThreadRenderingStats'; |
| var IMPL_RENDERING_STATS = |
| 'BenchmarkInstrumentation::ImplThreadRenderingStats'; |
| |
| |
| function getSlicesIntersectingRange(rangeOfInterest, slices) { |
| var slicesInFilterRange = []; |
| for (var i = 0; i < slices.length; i++) { |
| var slice = slices[i]; |
| if (rangeOfInterest.intersectsExplicitRangeInclusive( |
| slice.start, slice.end)) |
| slicesInFilterRange.push(slice); |
| } |
| return slicesInFilterRange; |
| } |
| |
| |
| function ChromeProcessHelper(modelHelper, process) { |
| this.modelHelper = modelHelper; |
| this.process = process; |
| this.telemetryInternalRanges_ = undefined; |
| } |
| |
| ChromeProcessHelper.prototype = { |
| get pid() { |
| return this.process.pid; |
| }, |
| |
| isTelemetryInternalEvent: function(slice) { |
| if (this.telemetryInternalRanges_ === undefined) { |
| this.findTelemetryInternalRanges_(); |
| } |
| for (var range of this.telemetryInternalRanges_) { |
| if (range.containsExplicitRangeInclusive(slice.start, slice.end)) { |
| return true; |
| } |
| } |
| return false; |
| }, |
| |
| findTelemetryInternalRanges_: function() { |
| this.telemetryInternalRanges_ = []; |
| var start = 0; |
| for (var thread of Object.values(this.process.threads)) { |
| for (var slice of thread.asyncSliceGroup.getDescendantEvents()) { |
| if (/^telemetry\.internal\.[^.]*\.start$/.test(slice.title)) { |
| start = slice.start; |
| } else if (/^telemetry\.internal\.[^.]*\.end$/.test(slice.title) && |
| start !== undefined) { |
| this.telemetryInternalRanges_.push( |
| tr.b.math.Range.fromExplicitRange(start, slice.end)); |
| start = undefined; |
| } |
| } |
| } |
| }, |
| |
| getFrameEventsInRange: function(frametimeType, range) { |
| var titleToGet = (frametimeType === MAIN_FRAMETIME_TYPE ? |
| MAIN_RENDERING_STATS : IMPL_RENDERING_STATS); |
| |
| var frameEvents = []; |
| for (var event of this.process.getDescendantEvents()) |
| if (event.title === titleToGet) |
| if (range.intersectsExplicitRangeInclusive(event.start, event.end)) |
| frameEvents.push(event); |
| |
| frameEvents.sort(function(a, b) {return a.start - b.start;}); |
| return frameEvents; |
| } |
| }; |
| |
| function getFrametimeDataFromEvents(frameEvents) { |
| var frametimeData = []; |
| for (var i = 1; i < frameEvents.length; i++) { |
| var diff = frameEvents[i].start - frameEvents[i - 1].start; |
| frametimeData.push({ |
| 'x': frameEvents[i].start, |
| 'frametime': diff |
| }); |
| } |
| return frametimeData; |
| } |
| |
| return { |
| ChromeProcessHelper, |
| |
| MAIN_FRAMETIME_TYPE, |
| IMPL_FRAMETIME_TYPE, |
| MAIN_RENDERING_STATS, |
| IMPL_RENDERING_STATS, |
| |
| getSlicesIntersectingRange, |
| getFrametimeDataFromEvents, |
| }; |
| }); |
| </script> |
