Quelle test_track_getNativeSizes.html

Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/media/webcodecs/test/test_track_getNativeSizes.html

<!DOCTYPE HTML>
<html>
<head>
  <title></title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script>

// Bug 1924775 - ESLint doesn't yet know about `ImageDecoder`.
/* globals ImageDecoder:false */

add_task(async function test() {
  const imgResponse = await fetch("multiple.ico");
  const data = await imgResponse.bytes();

  let decoder = new ImageDecoder({
    data,
    type: "image/x-icon",
  });
  await decoder.tracks.ready;

  is(typeof decoder.tracks[0].getSizes, "undefined", "getSizes should be hidden from normal content");
  let sizes = SpecialPowers.wrap(decoder.tracks[0]).getSizes();
  is(sizes.length, 3, "Should have 3 sizes");

  let expected = [[16, {r: 205, g: 8, b: 59}], [32, {r: 88, g: 205,  b: 103 }], [512, {r:100, g: 205, b: 224}]];
  for (let i = 0; i < expected.length; i++) {
    const [size, color] = expected[i];

    is(sizes[i].width, size, "width matches");
    is(sizes[i].height, size, "height matches");

    let decoder = new ImageDecoder({
      data,
      type: "image/x-icon",
      desiredWidth: size,
      desiredHeight: size,
    });

    let { image } = await decoder.decode({ completeFramesOnly: true } );

    let offscreen = new OffscreenCanvas(size, size);
    let ctx = offscreen.getContext("2d");
    ctx.drawImage(image, 0, 0);

    let imageData = ctx.getImageData(0, 0, 1, 1);
    is(imageData.data[0], color.r, `${size}x${size} red`);
    is(imageData.data[1], color.g, `${size}x${size} green`);
    is(imageData.data[2], color.b, `${size}x${size} bluee`);
  }
});
</script>
</body>
</html>

Messung V0.5 in Prozent

¤ Dauer der Verarbeitung: 0.5 Sekunden ¤

Wurzel

Suchen

PVS Prover

Isabelle Prover

NIST Cobol Testsuite

Cephes Mathematical Library

Vienna Development Method

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