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path: root/testing/web-platform/tests/html/canvas/offscreen/drawing-images-to-the-canvas/2d.drawImage.5arg.worker.js
blob: f725acf0118af0766afbb43871f48a610dc822a5 (plain)
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// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.drawImage.5arg
// Description:
// Note:

importScripts("/resources/testharness.js");
importScripts("/html/canvas/resources/canvas-tests.js");

promise_test(async t => {

  var canvas = new OffscreenCanvas(100, 50);
  var ctx = canvas.getContext('2d');

  ctx.fillStyle = '#f00';
  ctx.fillRect(0, 0, 100, 50);
  const response_red = await fetch('/images/red.png');
  const blob_red = await response_red.blob();
  const bitmap_red = await createImageBitmap(blob_red);

  const response_green = await fetch('/images/green.png');
  const blob_green = await response_green.blob();
  const bitmap_green = await createImageBitmap(blob_green);

  ctx.drawImage(bitmap_green, 50, 0, 50, 50);
  ctx.drawImage(bitmap_red, 0, 0, 50, 50);
  ctx.fillStyle = '#0f0';
  ctx.fillRect(0, 0, 50, 50);
  _assertPixelApprox(canvas, 0,0, 0,255,0,255, 2);
  _assertPixelApprox(canvas, 99,0, 0,255,0,255, 2);
  _assertPixelApprox(canvas, 0,49, 0,255,0,255, 2);
  _assertPixelApprox(canvas, 99,49, 0,255,0,255, 2);
  t.done();
}, "");
done();