121 lines
4.0 KiB
HTML
121 lines
4.0 KiB
HTML
<html>
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<head><title>Canvas Performance Test</title></head>
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<body>
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Iterations: <input id='iterations' style='width:50' value="100">
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<input id='startButton' type='button' value='Start' style='width:100px'
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onclick="start();">
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<br><br>
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Canvas:<br>
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<canvas id="canvas" width="640" height="20"
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style="border-style: dotted; border-width: 1px;">
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Canvas not supported.
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</canvas>
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<br>
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Results:<br>
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<textarea id="messages" style="font-size: 9;" cols=80 rows=25></textarea>
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</body>
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<!--
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<script type='text/javascript'
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src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'></script>
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-->
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<script src="include/mootools.js"></script>
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<script src="include/util.js"></script>
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<script src="include/canvas.js"></script>
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<script>
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var msg_cnt = 0;
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var width = 800, height = 600;
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var iterations;
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function message(str) {
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console.log(str);
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cell = $('messages');
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cell.innerHTML += msg_cnt + ": " + str + "\n";
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cell.scrollTop = cell.scrollHeight;
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}
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function draw () {
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var img, x, y;
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/* Border */
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Canvas.ctx.stroke();
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Canvas.ctx.rect(0, 0, Canvas.c_wx, Canvas.c_wy);
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Canvas.ctx.stroke();
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/*
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// Does not work in firefox
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var himg = new Image();
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himg.src = "head_ani2.gif"
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Canvas.ctx.drawImage(himg, 10, 10);
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*/
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/* Test array image data */
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//img = Canvas.ctx.createImageData(50, 50);
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img = Canvas.ctx.getImageData(0, 0, 50, 50);
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for (y=0; y< 50; y++) {
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for (x=0; x< 50; x++) {
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img.data[(y*50 + x)*4 + 0] = 255 - parseInt((255 / 50) * y, 10);
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img.data[(y*50 + x)*4 + 1] = parseInt((255 / 50) * y, 10);
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img.data[(y*50 + x)*4 + 2] = parseInt((255 / 50) * x, 10);
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img.data[(y*50 + x)*4 + 3] = 255;
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}
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}
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Canvas.ctx.putImageData(img, 100, 100);
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}
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function start () {
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$('startButton').value = "Running";
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$('startButton').disabled = true;
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setTimeout(start_delayed, 250);
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iterations = $('iterations').value;
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}
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function start_delayed () {
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message("Running test: prefer Javascript");
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Canvas.prefer_js = true;
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var time1 = run_test();
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message("prefer Javascript: " + time1 + "ms total, " +
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(time1 / iterations) + "ms per frame");
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message("Running test: prefer Canvas ops");
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Canvas.prefer_js = false;
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var time2 = run_test();
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message("prefer Canvas ops: " + time2 + "ms total, " +
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(time2 / iterations) + "ms per frame");
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$('startButton').disabled = false;
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$('startButton').value = "Start";
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}
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function run_test () {
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var color, start_time = (new Date()).getTime();
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for (var i=0; i < iterations; i++) {
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color = [128, 128, (255 / iterations) * i, 0];
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for (var x=0; x < width; x = x + 16) {
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for (var y=0; y < width; y = y + 16) {
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var tile = Canvas.getTile(x, y, 16, 16, color);
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Canvas.setTile(tile, 0, 0, 16, 16, color);
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Canvas.putTile(tile);
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}
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}
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}
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var end_time = (new Date()).getTime();
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return (end_time - start_time);
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}
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window.onload = function() {
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Canvas.init('canvas', width, height);
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Canvas.stop(); // Shut-off event interception
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$('iterations').value = 10;
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draw();
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message("Canvas initialized");
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}
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</script>
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</html>
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