| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2015 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/color_scheme.html"> |
| <link rel="import" href="/tracing/base/math/statistics.html"> |
| <link rel="import" href="/tracing/model/event.html"> |
| <link rel="import" href="/tracing/model/event_set.html"> |
| |
| <script> |
| 'use strict'; |
| |
| /** |
| * @fileoverview Class describing rendered frames. |
| * |
| * Because a frame is produced by multiple threads, it does not inherit from |
| * TimedEvent, and has no duration. |
| */ |
| tr.exportTo('tr.model', function() { |
| var ColorScheme = tr.b.ColorScheme; |
| var Statistics = tr.b.math.Statistics; |
| |
| var FRAME_PERF_CLASS = { |
| GOOD: 'good', |
| BAD: 'bad', |
| TERRIBLE: 'terrible', |
| NEUTRAL: 'generic_work' |
| }; |
| |
| /** |
| * @constructor |
| * @param {Array} associatedEvents Selection of events composing the frame. |
| * @param {Array} threadTimeRanges Array of {thread, start, end} |
| * for each thread, describing the critical path of the frame. |
| */ |
| function Frame(associatedEvents, threadTimeRanges, opt_args) { |
| tr.model.Event.call(this); |
| |
| this.threadTimeRanges = threadTimeRanges; |
| this.associatedEvents = new tr.model.EventSet(associatedEvents); |
| this.args = opt_args || {}; |
| |
| this.title = 'Frame'; |
| this.start = Statistics.min( |
| threadTimeRanges, function(x) { return x.start; }); |
| this.end = Statistics.max( |
| threadTimeRanges, function(x) { return x.end; }); |
| this.totalDuration = Statistics.sum( |
| threadTimeRanges, function(x) { return x.end - x.start; }); |
| |
| this.perfClass = FRAME_PERF_CLASS.NEUTRAL; |
| } |
| |
| Frame.prototype = { |
| __proto__: tr.model.Event.prototype, |
| |
| set perfClass(perfClass) { |
| this.colorId = ColorScheme.getColorIdForReservedName(perfClass); |
| this.perfClass_ = perfClass; |
| }, |
| |
| get perfClass() { |
| return this.perfClass_; |
| }, |
| |
| shiftTimestampsForward: function(amount) { |
| this.start += amount; |
| this.end += amount; |
| |
| for (var i = 0; i < this.threadTimeRanges.length; i++) { |
| this.threadTimeRanges[i].start += amount; |
| this.threadTimeRanges[i].end += amount; |
| } |
| }, |
| |
| addBoundsToRange: function(range) { |
| range.addValue(this.start); |
| range.addValue(this.end); |
| } |
| }; |
| |
| tr.model.EventRegistry.register( |
| Frame, |
| { |
| name: 'frame', |
| pluralName: 'frames' |
| }); |
| |
| return { |
| Frame, |
| FRAME_PERF_CLASS, |
| }; |
| }); |
| </script> |
