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,
24 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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({
80 description: 'Measures performance of SVG animation using animateTransform (animating on x and y).',
85 startTrackingFrameRate();
88 function addParticle()
90 var circle = document.createElementNS('http://www.w3.org/2000/svg','circle');
91 circle.setAttribute('r', particleRadius);
92 circle.setAttribute('fill', colors[Math.floor(Math.random() * colors.length)]);
94 svgContainer.appendChild(circle);
97 function addAnimation(target) {
98 var angle = Math.PI * 2 * PerfTestRunner.random();
99 var velocity = minVelocity + ((maxVelocity - minVelocity) * PerfTestRunner.random());
100 var x = stageWidth / 2 - particleRadius;
101 var y = stageHeight / 2 - particleRadius;
102 var dx = Math.cos(angle) * velocity;
103 var dy = Math.sin(angle) * velocity;
107 function detectCollision(lineX, normalX, lineY, normalY) {
110 if (dx * normalX < 0)
111 dtx = (lineX - x) / dx;
112 if (dy * normalY < 0)
113 dty = (lineY - y) / dy;
114 var dt = Math.min(dtx, dty);
115 var hitX = (dtx < dty);
118 x: hitX ? lineX : x + (dx * dt),
119 y: hitX ? y + (dy * dt) : lineY,
127 while (t < animationDuration) {
128 var collisionA = detectCollision(0, 1, 0, 1);
129 var collisionB = detectCollision(stageWidth, -1, stageHeight, -1);
130 var collision = collisionA.dt < collisionB.dt ? collisionA : collisionB;
131 if (t + collision.dt > animationDuration) {
132 var dt = animationDuration - t;
133 t = animationDuration;
143 target.appendChild(generateTransition(prevT, prevX, prevY, t, x, y));
148 if (target.lastChild) {
149 target.lastChild.setAttribute('repeatCount', '1000');
153 function generateTransition(prevT, prevX, prevY, t, x, y) {
154 var animation = document.createElementNS('http://www.w3.org/2000/svg','animateTransform');
155 animation.setAttribute('attributeName', 'transform');
156 animation.setAttribute('attributeType', 'xml');
157 animation.setAttribute('type', 'translate' );
158 animation.setAttribute('from', prevX + ' ' + prevY);
159 animation.setAttribute('to', x + ' ' + y);
160 animation.setAttribute('begin', prevT + 's');
161 animation.setAttribute('dur', (t - prevT) + 's');
166 function onCompletedRun() {
167 stopTrackingFrameRate();
168 svgContainer.remove();
172 <svg ns="http://www.w3.org/2000/svg" version="1.1" id="svgContainer"></svg>