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+<!--
+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>WebGL2 Non-Power of 2 texture conformance test.</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="5" height="3" style="width: 40px; height: 30px;"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+<script id="vshader" type="x-shader/x-vertex">
+attribute vec4 vPosition;
+attribute vec2 texCoord0;
+varying vec2 texCoord;
+void main()
+{
+    gl_Position = vPosition;
+    texCoord = texCoord0;
+}
+</script>
+
+<script id="fshader" type="x-shader/x-fragment">
+precision mediump float;
+uniform samplerCube tex;
+varying vec2 texCoord;
+void main()
+{
+    gl_FragColor = textureCube(tex, normalize(vec3(texCoord, 1)));
+}
+</script>
+<script>
+"use strict";
+description(document.title);
+var wtu = WebGLTestUtils;
+var gl = wtu.create3DContext("example", undefined, 2);
+var program = wtu.setupTexturedQuad(gl);
+
+wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
+
+var tests = [
+  { format: gl.RGBA,
+    type: gl.UNSIGNED_BYTE,
+    color: [192, 0, 128, 64],
+    expected: [192, 0, 128, 64],
+    tolerance: 0,
+  },
+  { format: gl.RGB,
+    type: gl.UNSIGNED_BYTE,
+    color: [192, 0, 128],
+    expected: [192, 0, 128, 255],
+    tolerance: 0,
+  },
+  { format: gl.LUMINANCE,
+    type: gl.UNSIGNED_BYTE,
+    color: [192],
+    expected: [192, 192, 192, 255],
+    tolerance: 0,
+  },
+  { format: gl.ALPHA,
+    type: gl.UNSIGNED_BYTE,
+    color: [64],
+    expected: [0, 0, 0, 64],
+    tolerance: 0,
+  },
+  { format: gl.LUMINANCE_ALPHA,
+    type: gl.UNSIGNED_BYTE,
+    color: [192, 64],
+    expected: [192, 192, 192, 64],
+    tolerance: 0,
+  },
+];
+
+tests.forEach(function(test) {
+  debug("");
+  debug("test " + wtu.glEnumToString(gl, test.format) + "/" + wtu.glEnumToString(gl, test.type));
+  var tex = gl.createTexture();
+
+  // Check that an NPOT texture not on level 0 does not generate INVALID_VALUE
+  wtu.fillTexture(gl, tex, 5, 3, test.color, 1, test.format, test.type);
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR,
+      "gl.texImage2D with NPOT texture with level > 0 should succeed");
+
+  // Check that an NPOT texture on level 0 succeeds
+  wtu.fillTexture(gl, tex, 5, 3, test.color, 0, test.format, test.type);
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR,
+      "gl.texImage2D with NPOT texture at level 0 should succeed");
+
+  // Check that generateMipmap succeeds on NPOT
+  gl.generateMipmap(gl.TEXTURE_2D);
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR,
+      "gl.generateMipmap with NPOT texture should succeed");
+
+  // Check that nothing is drawn if filtering is not correct for NPOT
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
+
+  wtu.clearAndDrawUnitQuad(gl);
+  wtu.checkCanvas(
+      gl, test.expected,
+      "NPOT texture with TEXTURE_WRAP set to REPEAT should draw");
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
+
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST_MIPMAP_LINEAR);
+
+  wtu.clearAndDrawUnitQuad(gl);
+  wtu.checkCanvas(
+      gl, test.expected,
+      "NPOT texture with TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw");
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
+
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
+
+  wtu.clearAndDrawUnitQuad(gl);
+  wtu.checkCanvas(
+      gl, test.expected,
+      "NPOT texture with TEXTURE_MIN_FILTER set to LINEAR should draw.");
+
+  gl.copyTexImage2D(gl.TEXTURE_2D, 1, test.format, 0, 0, 5, 3, 0);
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR,
+      "copyTexImage2D with NPOT texture with level > 0 should succeed.");
+
+  // Check that generateMipmap for an POT texture succeeds
+  wtu.fillTexture(gl, tex, 2, 2, test.color, 0, test.format);
+  gl.generateMipmap(gl.TEXTURE_2D);
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR,
+      "gl.texImage2D and gl.generateMipmap with POT texture at level 0 should succeed");
+
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR);
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
+  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
+
+  wtu.clearAndDrawUnitQuad(gl);
+  wtu.checkCanvas(
+      gl, test.expected,
+      "POT texture with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR should draw.");
+  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
+});
+
+var successfullyParsed = true;
+
+</script>
+<script src="../../../js/js-test-post.js"></script>
+
+</body>
+</html>
+