2d.drawImage.5arg.html

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/drawing-images-to-the-canvas/2d.drawImage.5arg.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->

<meta charset="UTF-8">

<title>OffscreenCanvas test: 2d.drawImage.5arg</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/html/canvas/resources/canvas-tests.js"></script>

<h1>2d.drawImage.5arg</h1>

<p class="desc"></p>

<script>

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);

}, "");

</script>