61 lines
1.6 KiB
HTML
61 lines
1.6 KiB
HTML
<!--
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Copyright (c) 2019 The Khronos Group Inc.
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Use of this source code is governed by an MIT-style license that can be
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found in the LICENSE.txt file.
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-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<link rel="stylesheet" href="../resources/js-test-style.css"/>
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<script src="../js/js-test-pre.js"></script>
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<script src="../js/webgl-test-utils.js"></script>
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<script id="vshader" type="x-shader/x-vertex">
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void main()
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{
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gl_PointSize = 1.0;
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gl_Position = vec4(0.0, 0.0, 0.0, 1.0);
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}
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</script>
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<script id="fshader" type="x-shader/x-fragment">
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precision mediump float;
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void main()
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{
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gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
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}
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</script>
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</head>
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<body>
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<canvas id="testbed" width="1" height="1" style="width: 100px; height: 100px;"></canvas>
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<div id="description"></div>
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<div id="console"></div>
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<script>
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"use strict";
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description('Stress test drawing a huge number of points without enabling any attributes');
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debug('This test stresses drawing a large number of points and workarounds created to run WebGL with simulated attrib 0');
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if (confirm('After clicking OK your machine may become unresponsive or crash.')) {
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var wtu = WebGLTestUtils;
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var gl = wtu.create3DContext('testbed');
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var program1 = wtu.setupProgram(gl, ['vshader', 'fshader']);
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gl.enable(gl.BLEND);
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debug('Draw 2^31 points with a shader that takes no attributes and verify it fills the whole canvas.');
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gl.drawArrays(gl.POINTS, 0, Math.pow(2, 31) - 1);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR);
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wtu.checkCanvas(gl, [0, 255, 0, 255]);
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}
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var successfullyParsed = true;
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</script>
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<script src="../js/js-test-post.js"></script>
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</body>
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</html>
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