src/third_party/trace-viewer/src/tracing/tracks/drawing_container_perf_test.js

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 'use strict';
   6
   7 tvcm.require('tracing.importer.trace_event_importer');
   8 tvcm.require('tracing.timeline_view');
   9 tvcm.require('tracing.timeline_viewport');
  10 tvcm.require('tracing.trace_model');
  11
  12 tvcm.unittest.testSuite('tracing.tracks.drawing_container_perf_test', function() {  // @suppress longLineCheck
  13   function getSynchronous(url) {
  14     var req = new XMLHttpRequest();
  15     req.open('GET', url, false);
  16     req.send(null);
  17     return req.responseText;
  18   }
  19
  20   var model = undefined;
  21
  22   var drawingContainer;
  23   var viewportDiv;
  24
  25   function timedDrawingContainerPerfTest(name, testFn, iterations) {
  26
  27     function setUpOnce() {
  28       if (model !== undefined)
  29         return;
  30       var events = getSynchronous('/test_data/huge_trace.json');
  31       model = new tracing.TraceModel();
  32       model.importTraces([events], true);
  33     }
  34
  35     function setUp() {
  36       setUpOnce();
  37       viewportDiv = document.createElement('div');
  38
  39       if (this.name === 'drawTrackContents_softwareCanvas') {
  40         viewportDiv.width = '200px';
  41         viewportDiv.style.width = '200px';
  42       }
  43
  44       this.addHTMLOutput(viewportDiv);
  45
  46       var viewport = new tracing.TimelineViewport(viewportDiv);
  47
  48       drawingContainer = new tracing.tracks.DrawingContainer(viewport);
  49       viewport.modelTrackContainer = drawingContainer;
  50
  51       var modelTrack = new tracing.tracks.TraceModelTrack(viewport);
  52       drawingContainer.appendChild(modelTrack);
  53
  54       modelTrack.model = model;
  55
  56       viewportDiv.appendChild(drawingContainer);
  57
  58       // Size the canvas.
  59       drawingContainer.updateCanvasSizeIfNeeded_();
  60
  61       // Size the viewport.
  62       var w = drawingContainer.canvas.width;
  63       var min = model.bounds.min;
  64       var range = model.bounds.range;
  65
  66       var boost = range * 0.15;
  67       var dt = new tracing.TimelineDisplayTransform();
  68       dt.xSetWorldBounds(min - boost, min + range + boost, w);
  69       modelTrack.viewport.setDisplayTransformImmediately(dt);
  70     };
  71
  72     function tearDown() {
  73       viewportDiv.innerText = '';
  74       drawingContainer = undefined;
  75     }
  76
  77     timedPerfTest(name, testFn, {
  78       setUp: setUp,
  79       tearDown: tearDown,
  80       iterations: iterations
  81     });
  82   }
  83
  84   var n110100 = [1, 10, 100];
  85   n110100.forEach(function(val) {
  86     timedDrawingContainerPerfTest(
  87         'drawTrackContents_softwareCanvas_' + val,
  88         function() {
  89           drawingContainer.drawTrackContents_();
  90         }, val);
  91   });
  92 });