testing/web-platform/tests/html/canvas/element/drawing-images-to-the-canvas/2d.drawImage.3arg.html
author Cosmin Sabou <csabou@mozilla.com>
Sat, 12 Jul 2025 09:18:08 +0300 (11 hours ago)
changeset 796290 5ad1f0c58c82bdfa2f42fed870bbe143465398d0
parent 752939 1996e4a4973941fa87e76e5646d5bb0088c0de84
permissions -rw-r--r--
Revert "Bug 1977019 - re-enable hw video decoding testing. r=media-playback-reviewers,jolin" for causing win mda failures on test_hw_video_decoding.html This reverts commit 158474bdc0cf585b701bc47921f0a7d84f7bb84d.
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<meta charset="UTF-8">
<title>Canvas test: 2d.drawImage.3arg</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
<body class="show_output">

<h1>2d.drawImage.3arg</h1>
<p class="desc"></p>


<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>

<ul id="d"></ul>
<script>
promise_test(async t => {

  var canvas = document.getElementById('c');
  var ctx = canvas.getContext('2d');

  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, 0, 0);
  ctx.drawImage(bitmap_red, -100, 0);
  ctx.drawImage(bitmap_red, 100, 0);
  ctx.drawImage(bitmap_red, 0, -50);
  ctx.drawImage(bitmap_red, 0, 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>