texture-complete.html

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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.

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<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<title>WebGL "Texture Complete" 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="40" height="40" style="width: 40px; height: 40px;"></canvas>

<canvas id="canvas2d" width="16" height="16" style="width: 40px; height: 40px;"></canvas>

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

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

<script>

"use strict";

function init()

  description(

      "Checks that a texture that is not -texture-complete- does not draw if"+

      " filtering needs mips");

  var canvas2d = document.getElementById("canvas2d");

  var ctx2d = canvas2d.getContext("2d");

  ctx2d.fillStyle = "rgba(0,192,128,1)";

  ctx2d.fillRect(0, 0, 16, 16);

  var wtu = WebGLTestUtils;

  var canvas = document.getElementById("example");

  var gl = wtu.create3DContext(canvas);

  var program = wtu.setupTexturedQuad(gl);

  gl.disable(gl.DEPTH_TEST);

  gl.disable(gl.BLEND);

  var tex = gl.createTexture();

  gl.bindTexture(gl.TEXTURE_2D, tex);

  // 16x16 texture no mips

  gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d);

  var loc = gl.getUniformLocation(program, "tex");

  gl.uniform1i(loc, 0);

  wtu.clearAndDrawUnitQuad(gl);

  wtu.checkCanvas(gl, [0,0,0,255],

      "texture that is not -texture-complete- when " +

      "TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw with 0,0,0,255");

init();

var successfullyParsed = true;

</script>

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

</body>

</html>