| Index: chrome/test/data/perf/latency_suite.html
|
| diff --git a/chrome/test/data/perf/latency_suite.html b/chrome/test/data/perf/latency_suite.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..a05ea82401635d91c37ab560b9d774c1dd0fc96a
|
| --- /dev/null
|
| +++ b/chrome/test/data/perf/latency_suite.html
|
| @@ -0,0 +1,152 @@
|
| +<html>
|
| +<head>
|
| +<script type="text/javascript">
|
| +/**
|
| + * @fileoverview This page executes various animation behaviors based on URL
|
| + * arguments to test input latency. There are two main modes of
|
| + * operation: webgl and software. Both modes use
|
| + * requestAnimationFrame to drive the update rate. The basic task
|
| + * of the page is to collect mouse input coordinates in the input
|
| + * handler and render with the latest input coordinate in RAF. The
|
| + * latency test will look at the rendering trace data to detect
|
| + * the latest mouse coordinate that affected the frame. For
|
| + * software runs, the pixel at 0,0 on the page must contain the
|
| + * mouse coordinate encoded as a color.
|
| + */
|
| +
|
| +var frameCountWarmup = 5;
|
| +var frameCount = 0;
|
| +var gl = null;
|
| +var mouseX = 0;
|
| +var testParams = {};
|
| +
|
| +function parseParams() {
|
| + var query = window.location.search.substring(1);
|
| + if (!query)
|
| + return;
|
| + var params = query.split('&');
|
| + for (var i = 0, len = params.length; i < len; i++) {
|
| + var pair = params[i].split('=');
|
| + if (pair.length == 1)
|
| + testParams[pair[0]] = true;
|
| + else
|
| + testParams[pair[0]] = pair[1];
|
| + }
|
| +}
|
| +
|
| +function setCoordinates(e) {
|
| + // Ignore mouse events with wrong Y coordinate.
|
| + if (e.clientY != parseInt(testParams.y))
|
| + return;
|
| +
|
| + mouseX = e.clientX;
|
| + if (testParams.inputDirty) {
|
| + document.getElementById('text').firstChild.textContent =
|
| + mouseX.toString();
|
| + }
|
| + if (testParams.inputHeavy) {
|
| + sleep(parseInt(testParams.delayTimeMS));
|
| + }
|
| +}
|
| +
|
| +function init() {
|
| + parseParams();
|
| +
|
| + if (testParams.mode == 'webgl') {
|
| + var canvas = document.getElementById('canvas');
|
| + if (!canvas)
|
| + return false;
|
| + canvas.width = parseInt(testParams.canvasWidth);
|
| + canvas.height = parseInt(testParams.canvasWidth);
|
| + try {
|
| + // Specify antialiasing to ensure that we get a BlitFramebufferEXT in
|
| + // the trace when the compositor consumes a webgl frame.
|
| + gl = canvas.getContext('webgl', { antialias: true });
|
| + } catch (e) {}
|
| + if (!gl) {
|
| + try {
|
| + gl = canvas.getContext('experimental-webgl');
|
| + } catch (e) {
|
| + return false;
|
| + }
|
| + }
|
| + return true;
|
| + } else if (testParams.mode == 'software') {
|
| + var table = document.getElementById('table');
|
| + table.style.backgroundColor = '#ff00ff';
|
| + return true;
|
| + }
|
| +}
|
| +
|
| +function onLoad() {
|
| + if (init())
|
| + window.webkitRequestAnimationFrame(draw);
|
| + else
|
| + endTest();
|
| +}
|
| +
|
| +function sleep(milliseconds) {
|
| + var start = Date.now();
|
| + while(Date.now() - start <= milliseconds);
|
| +}
|
| +
|
| +function draw() {
|
| + if (testParams.rafHeavy) {
|
| + sleep(parseInt(testParams.delayTimeMS));
|
| + }
|
| +
|
| + if (testParams.mode == 'webgl') {
|
| + gl.viewport(0, 0, testParams.canvasWidth, testParams.canvasWidth);
|
| + if (testParams.paintHeavy) {
|
| + gl.clearColor(0, 0, 0.0, 1.0);
|
| + for (var i = 0; i < 1000; ++i)
|
| + gl.clear(gl.COLOR_BUFFER_BIT);
|
| + }
|
| + gl.clearColor(mouseX, testParams.clearColorGreen, 0.0, 1.0);
|
| + gl.clear(gl.COLOR_BUFFER_BIT);
|
| + } else if (testParams.mode == 'software') {
|
| + var table = document.getElementById('table');
|
| + // Encode mouse x value into color channels (support up to 64k x values).
|
| + var g = (mouseX & 0xff00) >> 8;
|
| + var b = (mouseX & 0xff);
|
| + table.style.backgroundColor = 'rgb(0, ' + g + ', ' + b + ')';
|
| + // When no inputs are coming in, the first table won't change. Since we
|
| + // still need to cause a paint, toggle the color of another element:
|
| + var table2 = document.getElementById('table2');
|
| + table2.style.backgroundColor = (frameCount & 1) ? 'gray' : 'silver';
|
| + if (testParams.paintHeavy) {
|
| + var body = document.getElementById('body');
|
| + body.style.backgroundColor = (frameCount & 1) ? 'silver' : 'gray';
|
| + }
|
| + }
|
| +
|
| + frameCount++;
|
| + if (frameCount == parseInt(testParams.numFrames)) {
|
| + if (testParams.mode == 'webgl')
|
| + gl.finish();
|
| + endTest();
|
| + } else {
|
| + window.webkitRequestAnimationFrame(draw);
|
| + }
|
| +}
|
| +
|
| +function endTest() {
|
| + domAutomationController.setAutomationId(1);
|
| + domAutomationController.send('FINISHED');
|
| +}
|
| +</script>
|
| +</head>
|
| +<style>
|
| +#table {
|
| + height: 10px;
|
| + width: 10px;
|
| +}
|
| +</style>
|
| +<body id="body" style="margin:0px" onload="onLoad()"
|
| + onmousemove="setCoordinates(event)">
|
| +<table id="table"><tr/></table>
|
| +<table id="table2"><tr/></table>
|
| +<canvas id="canvas"></canvas>
|
| +<p><b id="text">x</b></p>
|
| +</body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 8883005:
Input latency performance test that uses tracing. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src