dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-clear.html

   1 <!--
   2 Copyright (c) 2019 The Khronos Group Inc.
   3 Use of this source code is governed by an MIT-style license that can be
   4 found in the LICENSE.txt file.
   5 -->
   6
   7 <!DOCTYPE html>
   8 <html>
   9 <head>
  10 <meta charset="utf-8">
  11 <title>WebGL texture clear conformance test.</title>
  12 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
  13 <script src="../../../js/js-test-pre.js"></script>
  14 <script src="../../../js/webgl-test-utils.js"></script>
  15 </head>
  16 <body>
  17 <canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas>
  18 <div id="description"></div>
  19 <div id="console"></div>
  20 <script>
  21 "use strict";
  22 description(document.title);
  23 var wtu = WebGLTestUtils;
  24 var gl = wtu.create3DContext("example");
  25 var program = wtu.setupTexturedQuad(gl);
  26
  27 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
  28
  29 var tex = gl.createTexture();
  30 gl.bindTexture(gl.TEXTURE_2D, tex);
  31 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
  32 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8Array([0,255,0,255]));
  33 wtu.clearAndDrawUnitQuad(gl);
  34 wtu.checkCanvas(
  35     gl, [0, 255, 0, 255], "should be green");
  36 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
  37 var successfullyParsed = true;
  38 </script>
  39 <script src="../../../js/js-test-post.js"></script>
  40
  41 </body>
  42 </html>
  43