2019-06-14 17:51:09 +00:00
|
|
|
<!DOCTYPE html>
|
|
|
|
|
<html>
|
|
|
|
|
<head>
|
2020-06-19 15:11:03 +00:00
|
|
|
<title>Skottie-WASM Perf</title>
|
|
|
|
|
<meta charset="utf-8" />
|
|
|
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge">
|
|
|
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
|
|
|
<script src="res/canvaskit.js" type="text/javascript" charset="utf-8"></script>
|
|
|
|
|
<style type="text/css" media="screen">
|
|
|
|
|
body {
|
|
|
|
|
margin: 0;
|
|
|
|
|
padding: 0;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
2019-06-14 17:51:09 +00:00
|
|
|
</head>
|
|
|
|
|
<body>
|
|
|
|
|
<main>
|
2019-06-24 18:47:25 +00:00
|
|
|
<canvas id=anim width=1000 height=1000 style="height: 1000px; width: 1000px;"></canvas>
|
2019-06-14 17:51:09 +00:00
|
|
|
</main>
|
|
|
|
|
<script type="text/javascript" charset="utf-8">
|
2020-09-03 14:02:10 +00:00
|
|
|
const WIDTH = 1000;
|
|
|
|
|
const HEIGHT = 1000;
|
|
|
|
|
const LOTTIE_JSON_PATH = '/res/lottie.json';
|
|
|
|
|
const MAX_FRAMES = 25;
|
|
|
|
|
const MAX_LOOPS = 25;
|
|
|
|
|
const MAX_SAMPLE_MS = 60*1000; // in case something takes a while, stop after 60 seconds.
|
2019-06-14 17:51:09 +00:00
|
|
|
(function() {
|
2020-09-03 14:02:10 +00:00
|
|
|
const loadKit = CanvasKitInit({
|
|
|
|
|
locateFile: (file) => '/res/' + file,
|
|
|
|
|
});
|
2019-06-14 17:51:09 +00:00
|
|
|
|
2020-09-03 14:02:10 +00:00
|
|
|
const loadLottie = fetch(LOTTIE_JSON_PATH).then((resp) => {
|
|
|
|
|
return resp.text();
|
2019-06-14 17:51:09 +00:00
|
|
|
});
|
|
|
|
|
|
2020-09-03 14:02:10 +00:00
|
|
|
Promise.all([loadKit, loadLottie]).then((values) => {
|
|
|
|
|
const [CanvasKit, json] = values;
|
2019-06-14 17:51:09 +00:00
|
|
|
|
2020-09-03 14:02:10 +00:00
|
|
|
const animation = CanvasKit.MakeManagedAnimation(json, null);
|
|
|
|
|
if (!animation) {
|
|
|
|
|
window._error = 'Could not process JSON';
|
|
|
|
|
return
|
|
|
|
|
}
|
2019-06-14 17:51:09 +00:00
|
|
|
|
2020-09-03 14:02:10 +00:00
|
|
|
let surface = null;
|
|
|
|
|
if (window.location.hash.indexOf('gpu') !== -1) {
|
|
|
|
|
surface = CanvasKit.MakeWebGLCanvasSurface('anim');
|
|
|
|
|
if (!surface) {
|
|
|
|
|
window._error = 'Could not make GPU surface';
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
let c = document.getElementById('anim');
|
|
|
|
|
// If CanvasKit was unable to instantiate a WebGL context, it will fallback
|
|
|
|
|
// to CPU and add a ck-replaced class to the canvas element.
|
|
|
|
|
if (c.classList.contains('ck-replaced')) {
|
|
|
|
|
window._error = 'fell back to CPU';
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
surface = CanvasKit.MakeSWCanvasSurface('anim');
|
|
|
|
|
if (!surface) {
|
|
|
|
|
window._error = 'Could not make CPU surface';
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
const canvas = surface.getCanvas();
|
2019-06-14 17:51:09 +00:00
|
|
|
|
2020-09-03 14:02:10 +00:00
|
|
|
const t_rate = 1.0 / (MAX_FRAMES-1);
|
|
|
|
|
let seek = 0;
|
|
|
|
|
let frame = 0;
|
|
|
|
|
let loop = 0;
|
|
|
|
|
const damageRect = Float32Array.of(0, 0, 0, 0);
|
|
|
|
|
const bounds = CanvasKit.LTRBRect(0, 0, WIDTH, HEIGHT);
|
|
|
|
|
const start = performance.now();
|
2019-06-14 17:51:09 +00:00
|
|
|
|
2020-09-03 14:02:10 +00:00
|
|
|
const drawFrame = () => {
|
|
|
|
|
if ((performance.now() - start) > MAX_SAMPLE_MS) {
|
|
|
|
|
// This global variable signals we are done.
|
|
|
|
|
window._skottieDone = true;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
if (frame >= MAX_FRAMES) {
|
|
|
|
|
// Reached the end of one loop.
|
|
|
|
|
loop++;
|
|
|
|
|
if (loop == MAX_LOOPS) {
|
|
|
|
|
// This global variable signals we are done.
|
|
|
|
|
window._skottieDone = true;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
// Reset frame and seek to restart the loop.
|
|
|
|
|
frame = 0;
|
|
|
|
|
seek = 0;
|
|
|
|
|
}
|
2019-06-24 18:47:25 +00:00
|
|
|
|
2020-09-03 14:02:10 +00:00
|
|
|
let damage = animation.seek(seek, damageRect);
|
|
|
|
|
if (damage[2] > damage[0] && damage[3] > damage[1]) {
|
|
|
|
|
animation.render(canvas, bounds);
|
|
|
|
|
surface.flush();
|
|
|
|
|
}
|
|
|
|
|
console.log(`Used seek: ${seek}`);
|
|
|
|
|
seek += t_rate;
|
|
|
|
|
frame++;
|
|
|
|
|
window.requestAnimationFrame(drawFrame);
|
|
|
|
|
};
|
|
|
|
|
window.requestAnimationFrame(drawFrame);
|
|
|
|
|
});
|
|
|
|
|
})();
|
2019-06-14 17:51:09 +00:00
|
|
|
</script>
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
