2d.layer.global-states.filter.copy.shadow.no-transform.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/layers/2d.layer.global-states.filter.copy.shadow.no-transform.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

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

<link rel="match" href="2d.layer.global-states.filter.copy.shadow.no-transform-expected.html">

<title>Canvas test: 2d.layer.global-states.filter.copy.shadow.no-transform</title>

<h1 style="font-size: 20px;">2d.layer.global-states.filter.copy.shadow.no-transform</h1>

<p class="desc">Checks that layers with filters correctly use global render states.</p>

<div style="display: grid; grid-gap: 4px;

            grid-template-columns: repeat(2, max-content);

            font-size: 13px; text-align: center;">

<span>

  <div>no-globalAlpha</div>

  <canvas id="canvas0" width="90" height="90" style="outline: 1px solid">

    <p class="fallback">FAIL (fallback content)</p>

  </canvas>

  <script type="module">

    const canvas = new OffscreenCanvas(90, 90);

    const ctx = canvas.getContext('2d');

    // No transform.

    ctx.fillStyle = 'rgba(128, 128, 128, 1)';

    ctx.fillRect(20, 15, 50, 50);

    // No globalAlpha.

    ctx.globalCompositeOperation = 'copy';

    ctx.shadowOffsetX = -7;

    ctx.shadowOffsetY = 7;

    ctx.shadowColor = 'rgba(255, 165, 0, 0.5)';

    ctx.shadowBlur = 3;

    ctx.beginLayer({filter: [

        {name: 'dropShadow',

            dx: 5, dy: 5, stdDeviation: 0, floodColor: '#00f'},

        {name: 'componentTransfer',

            funcA: {type: "table", tableValues: [0, 0.8]}}]});

    ctx.fillStyle = 'rgba(255, 0, 0, 1)';

    ctx.fillRect(10, 25, 40, 50);

    ctx.fillStyle = 'rgba(0, 255, 0, 1)';

    ctx.fillRect(30, 5, 50, 40);

    ctx.endLayer();

    const outputCanvas = document.getElementById("canvas0");

    const outputCtx = outputCanvas.getContext('2d');

    outputCtx.drawImage(canvas, 0, 0);

  </script>

</span>

<span>

  <div>globalAlpha</div>

  <canvas id="canvas1" width="90" height="90" style="outline: 1px solid">

    <p class="fallback">FAIL (fallback content)</p>

  </canvas>

  <script type="module">

    const canvas = new OffscreenCanvas(90, 90);

    const ctx = canvas.getContext('2d');

    // No transform.

    ctx.fillStyle = 'rgba(128, 128, 128, 1)';

    ctx.fillRect(20, 15, 50, 50);

    ctx.globalAlpha = 0.75;

    ctx.globalCompositeOperation = 'copy';

    ctx.shadowOffsetX = -7;

    ctx.shadowOffsetY = 7;

    ctx.shadowColor = 'rgba(255, 165, 0, 0.5)';

    ctx.shadowBlur = 3;

    ctx.beginLayer({filter: [

        {name: 'dropShadow',

            dx: 5, dy: 5, stdDeviation: 0, floodColor: '#00f'},

        {name: 'componentTransfer',

            funcA: {type: "table", tableValues: [0, 0.8]}}]});

    ctx.fillStyle = 'rgba(255, 0, 0, 1)';

    ctx.fillRect(10, 25, 40, 50);

    ctx.fillStyle = 'rgba(0, 255, 0, 1)';

    ctx.fillRect(30, 5, 50, 40);

    ctx.endLayer();

    const outputCanvas = document.getElementById("canvas1");

    const outputCtx = outputCanvas.getContext('2d');

    outputCtx.drawImage(canvas, 0, 0);

  </script>

</span>

</div>