dom/canvas/test/webgl-conf/checkout/conformance2/rendering/draw-with-integer-texture-base-level.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 Draw With Integer Texture Base Level Tests</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 <script src="../../js/tests/tex-image-and-sub-image-utils.js"></script>
  16 </head>
  17 <body>
  18 <canvas id="example" width="24" height="24"></canvas>
  19 <div id="description"></div>
  20 <div id="console"></div>
  21 <script>
  22 "use strict";
  23
  24 var canvas;
  25 var wtu = WebGLTestUtils;
  26 canvas = document.getElementById("example");
  27 var gl = wtu.create3DContext(canvas, undefined, 2);
  28 var tiu = TexImageUtils;
  29
  30 // Both Chrome and Firefox fail on this test on NVIDIA Windows, see crbug.com/679639.
  31 function testDrawIntegerTextureBaseLevel()
  32 {
  33     description("This test verifies the functionality of rendering with integer texture non-zero base level.");
  34
  35     var green = [0, 255, 0, 255];
  36
  37     var width = 16;
  38     var height = 16;
  39     canvas.width = width;
  40     canvas.height = height;
  41     gl.viewport(0, 0, width, height);
  42
  43     var texture = gl.createTexture();
  44     var level = 1;
  45     gl.bindTexture(gl.TEXTURE_2D, texture);
  46     gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
  47     gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
  48     gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_BASE_LEVEL, level);
  49     wtu.fillTexture(gl, texture, width, height, green, level, gl.RGBA_INTEGER, gl.UNSIGNED_BYTE, gl.RGBA8UI);
  50     wtu.glErrorShouldBe(gl, gl.NO_ERROR);
  51
  52     var program = tiu.setupTexturedQuad(gl, "RGBA8UI");
  53     gl.drawArrays(gl.TRIANGLES, 0, 6);
  54     wtu.glErrorShouldBe(gl, gl.NO_ERROR);
  55     wtu.checkCanvas(gl, green);
  56 }
  57
  58 testDrawIntegerTextureBaseLevel();
  59 var successfullyParsed = true;
  60 </script>
  61 <script src="../../js/js-test-post.js"></script>
  62
  63 </body>
  64 </html>
  65