2 Copyright (c) 2012 Cameron Adams. All rights reserved.
3 Copyright (c) 2012 Code Aurora Forum. All rights reserved.
4 Copyright (C) 2013 Google Inc. All rights reserved.
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7 modification, are permitted provided that the following conditions are
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15 * Neither the name of Code Aurora Forum Inc., Google Inc. nor the
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19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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25 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 This test is based on code written by Cameron Adams and imported from
32 http://themaninblue.com/experiment/AnimationBenchmark/html
37 <title>Benchmark - Balls Animation using SVG Animations</title>
58 <script src="../resources/runner.js"></script>
59 <script src="resources/framerate.js"></script>
62 var stageHeight = 600;
63 var maxParticles = 2500;
65 var maxVelocity = 500;
66 var particleRadius = 6;
67 var colors = ["#cc0000", "#ffcc00", "#aaff00", "#0099cc", "#194c99", "#661999"];
68 var animationDuration = 10;
72 window.onload = function () {
73 svgContainer.setAttribute('width', stageWidth);
74 svgContainer.setAttribute('height', stageHeight);
76 for (var i = 0; i < maxParticles; i++)
79 PerfTestRunner.prepareToMeasureValuesAsync({done: onCompletedRun, unit: 'fps'});
81 startTrackingFrameRate();
84 function addParticle()
86 var circle = document.createElementNS('http://www.w3.org/2000/svg','circle');
87 circle.setAttribute('r', particleRadius);
88 circle.setAttribute('fill', colors[Math.floor(Math.random() * colors.length)]);
90 svgContainer.appendChild(circle);
93 function addAnimation(target) {
94 var angle = Math.PI * 2 * PerfTestRunner.random();
95 var velocity = minVelocity + ((maxVelocity - minVelocity) * PerfTestRunner.random());
96 var x = stageWidth / 2 - particleRadius;
97 var y = stageHeight / 2 - particleRadius;
98 var dx = Math.cos(angle) * velocity;
99 var dy = Math.sin(angle) * velocity;
103 function detectCollision(lineX, normalX, lineY, normalY) {
106 if (dx * normalX < 0)
107 dtx = (lineX - x) / dx;
108 if (dy * normalY < 0)
109 dty = (lineY - y) / dy;
110 var dt = Math.min(dtx, dty);
111 var hitX = (dtx < dty);
114 x: hitX ? lineX : x + (dx * dt),
115 y: hitX ? y + (dy * dt) : lineY,
123 while (t < animationDuration) {
124 var collisionA = detectCollision(0, 1, 0, 1);
125 var collisionB = detectCollision(stageWidth, -1, stageHeight, -1);
126 var collision = collisionA.dt < collisionB.dt ? collisionA : collisionB;
127 if (t + collision.dt > animationDuration) {
128 var dt = animationDuration - t;
129 t = animationDuration;
139 target.appendChild(generateTransition(prevT, prevX, prevY, t, x, y));
144 if (target.lastChild) {
145 target.lastChild.setAttribute('repeatCount', '1000');
149 function generateTransition(prevT, prevX, prevY, t, x, y) {
150 var animation = document.createElementNS('http://www.w3.org/2000/svg','animateTransform');
151 animation.setAttribute('attributeName', 'transform');
152 animation.setAttribute('attributeType', 'xml');
153 animation.setAttribute('type', 'translate' );
154 animation.setAttribute('from', prevX + ' ' + prevY);
155 animation.setAttribute('to', x + ' ' + y);
156 animation.setAttribute('begin', prevT + 's');
157 animation.setAttribute('dur', (t - prevT) + 's');
162 function onCompletedRun() {
163 stopTrackingFrameRate();
164 svgContainer.remove();
168 <svg ns="http://www.w3.org/2000/svg" version="1.1" id="svgContainer"></svg>