third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-opaque-background-compositing.html - Issue 2774903003: Fix the compositing of placeholder canvas backgrounds

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Side by Side Diff: third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-opaque-background-compositing.html

Issue 2774903003: Fix the compositing of placeholder canvas backgrounds (Closed)

Patch Set: un-dupe function Created 3 years, 9 months ago

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	1 <!DOCTYPE html>

	2 <html>

	3 <style>

	4 #myCanvas {

	5 width: 100%;

	6 height: 100%;

	7 background-color: rgb(241, 241, 241);

	8 }

	9 </style>

	10 <head>

	11 <link rel="stylesheet" type="text/css" href="canvas.css">

	12 </head>

	13 <body onload="load()">

	14 <canvas id="myCanvas"></canvas>

	15 <script>

	16 function load() {

	17 var myCanvas = document.getElementById("myCanvas");

	18 myCanvas.setAttribute("width", 400);

	19 myCanvas.setAttribute("height", 400);

	20 var offscreenCanvas = myCanvas.transferControlToOffscreen();

	21 var offscreen2d = offscreenCanvas.getContext("2d");

	22 offscreen2d.clearRect(0, 0, 400, 400);

	23 offscreen2d.fillStyle = "green";

	24 offscreen2d.fillRect(0, 0, 200, 200);

	25 offscreen2d.commit();

	26 }

	27 </script>

	28 </body>

	29 </html>

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