2015-10-12 06:21:03 +03:00
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<!DOCTYPE HTML>
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<html>
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<head>
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<title>WebGL in OffscreenCanvas</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<script src="/tests/SimpleTest/WindowSnapshot.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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</head>
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<body>
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<script>
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SimpleTest.waitForExplicitFinish();
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function createCanvas(initWithMask) {
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var canvas = document.createElement("canvas");
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canvas.width = 64;
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canvas.height = 64;
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document.body.appendChild(canvas);
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if (initWithMask) {
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canvas.style.mask = "url('offscreencanvas_mask.svg#fade_mask_both')";
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}
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return canvas;
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}
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function getRefSnapshot(initWithMask) {
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var refCanvas = createCanvas(!initWithMask);
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var ctx = refCanvas.getContext("2d");
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ctx.rect(0, 0, 64, 64);
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ctx.fillStyle = "#00FF00";
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ctx.fill();
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var result = snapshotWindow(window);
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document.body.removeChild(refCanvas);
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return result;
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}
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2016-03-05 18:20:47 +03:00
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function runTest(initWithMask) {
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var htmlCanvas = createCanvas(initWithMask);
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var worker = new Worker("offscreencanvas.js");
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2015-10-12 06:21:03 +03:00
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2016-03-05 18:20:47 +03:00
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worker.onmessage = function(evt) {
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var msg = evt.data || {};
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if (msg.type == "draw") {
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if (msg.count === 10) {
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// Change the fallback state dynamically when drawing count reaches 10.
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if (initWithMask) {
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htmlCanvas.style.mask = "";
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} else {
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htmlCanvas.style.mask = "url('offscreencanvas_mask.svg#fade_mask_both')";
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2015-10-12 06:21:03 +03:00
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}
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2016-03-05 18:20:47 +03:00
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} else if (msg.count === 20) {
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var snapshotFallback = snapshotWindow(window);
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worker.terminate();
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document.body.removeChild(htmlCanvas);
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2015-10-12 06:21:03 +03:00
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2016-03-05 18:20:47 +03:00
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var results = compareSnapshots(snapshotFallback, getRefSnapshot(initWithMask), true);
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ok(results[0], "after dynamic fallback, screenshots should be the same");
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2015-10-12 06:21:03 +03:00
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2016-03-05 18:20:47 +03:00
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if (initWithMask) {
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SimpleTest.finish();
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} else {
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runTest(true);
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2015-10-12 06:21:03 +03:00
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}
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}
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2016-03-05 18:20:47 +03:00
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}
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2015-10-12 06:21:03 +03:00
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}
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2016-03-05 18:20:47 +03:00
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var offscreenCanvas = htmlCanvas.transferControlToOffscreen();
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worker.postMessage({test: 'webgl_fallback', canvas: offscreenCanvas}, [offscreenCanvas]);
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2015-10-12 06:21:03 +03:00
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}
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SpecialPowers.pushPrefEnv({'set': [
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['gfx.offscreencanvas.enabled', true],
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['webgl.force-enabled', true],
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2016-03-05 18:20:47 +03:00
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]}, runTest.bind(false));
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2015-10-12 06:21:03 +03:00
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</script>
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</body>
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</html>
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