84 lines
2.1 KiB
HTML
84 lines
2.1 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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<title>WebGL Out Of Memory Test</title>
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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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</head>
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<body>
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<div id="description"></div>
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<div id="console"></div>
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<canvas id="canvas" width="2" height="2"> </canvas>
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<script>
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"use strict";
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debug("This tests WebGL running out of memory.");
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debug("");
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debug("Canvas.getContext");
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var wtu = WebGLTestUtils;
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var gl = wtu.create3DContext("canvas");
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if (!gl) {
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testFailed("context does not exist");
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} else {
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testPassed("context exists");
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debug("");
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debug("Allocating shaders.");
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function makeBigShader() {
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var lines = [];
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var line = "// ";
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for (var ii = 0; ii < 1024; ++ii) {
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line += String.fromCharCode(48 + ii % 10);
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}
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for (var ii = 0; ii < 1024; ++ii) {
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lines[ii] = line;
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}
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var oneMB = lines.join();
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for (var ii = 0; ii < 64; ++ii) {
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lines[ii] = oneMB;
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}
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return lines.join("\n");
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}
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var shaderSource = makeBigShader();
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debug("created " + Math.floor(shaderSource.length / 1024 / 1024) + "MB shader");
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var intervalId;
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var count = 0;
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function makeShader() {
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++count;
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debug ("creating shader #" + count + " mem = " + Math.floor(shaderSource.length * count / 1024 / 1024) + "MB");
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var shader = gl.createShader(gl.VERTEX_SHADER);
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if (shader == null) {
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window.clearInterval(intervalId);
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testPassed("createShader returns null"); // not sure this is a passing
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finishTest();
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} else {
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gl.shaderSource(shader, shaderSource);
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var err = gl.getError();
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if (err != gl.NO_ERROR) {
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window.clearInterval(intervalId);
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assertMsg(err == gl.OUT_OF_MEMORY, "shaderSource returns OUT_OF_MEMORY");
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finishTest();
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}
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}
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}
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intervalId = window.setInterval(makeShader, 1000/15);
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}
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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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