tex-subimage3d-canvas-bug.html

Enable keyboard shortcuts

<!--

Copyright (c) 2019 The Khronos Group Inc.

Use of this source code is governed by an MIT-style license that can be

found in the LICENSE.txt file.

-->

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<title>Test bug of TexSubImage3D with canvas</title>

<link rel="stylesheet" href="../../../resources/js-test-style.css"/>

<script src="../../../js/js-test-pre.js"></script>

<script src="../../../js/webgl-test-utils.js"></script>

</head>

<body>

<canvas id="example" width="2" height="2" style="width: 2px; height: 2px;"></canvas>

<div id="description"></div>

<div id="console"></div>

<script>

"use strict";

description(document.title);

debug("This is a regression test for <a href='https://bugs.chromium.org/p/chromium/issues/detail?id=859400'>Chromium Issue 859400</a>");

debug("");

var wtu = WebGLTestUtils;

var gl = wtu.create3DContext("example", undefined, 2);

wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

function runTest() {

  var ctx = document.createElement('canvas').getContext("2d");

  var maxTexSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);

  var width = Math.ceil(Math.sqrt(maxTexSize));

  var height = width;

  var depth = width + 1;

  ctx.canvas.width = width;

  // Set canvas height to a value larger than MAX_TEXTURE_SIZE.

  // This triggers a validation bug in Chrome.

  ctx.canvas.height = height * depth;

  var tex = gl.createTexture();

  gl.bindTexture(gl.TEXTURE_2D_ARRAY, tex);

  gl.texStorage3D(gl.TEXTURE_2D_ARRAY, 1, gl.RGBA8, width, height, depth);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from TexStorage3D.");

  gl.texSubImage3D(gl.TEXTURE_2D_ARRAY, 0, 0, 0, 0, width, height, depth,

                   gl.RGBA, gl.UNSIGNED_BYTE, ctx.canvas);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from TexSubImage3D.");

runTest();

var successfullyParsed = true;

</script>

<script src="../../../js/js-test-post.js"></script>

</body>

</html>