120 lines
3.6 KiB
HTML
120 lines
3.6 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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<title>WebGL Out Of Resources Test</title>
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<link rel="stylesheet" href="../resources/js-test-style.css"/>
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<script src="../../devtools/src/debug/webgl-debug.js"></script>
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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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<canvas id="canvas2" width="2" height="2"> </canvas>
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<script>
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"use strict";
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wtu = WebGLTestUtils;
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window.onload = init;
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debug("Tests a WebGL program that tries to use all of vram.");
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function init() {
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if (confirm(
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"After clicking OK your machine may become unresponsive or crash.")) {
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main();
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} else {
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debug("cancelled");
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}
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}
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function main() {
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debug("");
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debug("Canvas.getContext");
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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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var program = wtu.setupColorQuad(gl);
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gl.useProgram(program);
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debug("");
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debug("Checking for out of memory handling.");
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var size = gl.getParameter(gl.MAX_RENDERBUFFER_SIZE);
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debug("max render buffer size: " + size);
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var allocateFramebuffers = true;
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var itervalId;
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var count = 0;
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gl = WebGLDebugUtils.makeDebugContext(gl, function(err, functionName, args) {
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assertMsg(err == gl.OUT_OF_MEMORY,
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"correctly returns gl.OUT_OF_MEMORY when out of memory");
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stop("got: " + wtu.glEnumToString(gl, err));
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});
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var fbos = [];
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intervalId = window.setInterval(function() {
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++count;
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var mem = count * size * size * 4;
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debug("#" + count + " : memory allocated so far " + (mem / 1024 / 1024) + "MB");
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var tex = gl.createTexture();
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gl.bindTexture(gl.TEXTURE_2D, tex);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
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gl.texImage2D(gl.TEXTURE_2D,
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0, // level
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gl.RGBA, // internalFormat
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size, // width
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size, // height
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0, // border
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gl.RGBA, // format
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gl.UNSIGNED_BYTE, // type
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null); // data
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var err = gl.getError();
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if (err != gl.NO_ERROR) {
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stop("got error: " + wtu.glEnumToString(gl, err));
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return;
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}
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if (allocateFramebuffers) {
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var fb = gl.createFramebuffer();
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gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
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gl.framebufferTexture2D(
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gl.FRAMEBUFFER,
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gl.COLOR_ATTACHMENT0,
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gl.TEXTURE_2D,
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tex,
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0);
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var status = gl.checkFramebufferStatus(gl.FRAMEBUFFER);
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if (status != gl.FRAMEBUFFER_COMPLETE) {
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stop("got: " + wtu.glEnumToString(gl, status));
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return;
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}
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// use the framebuffer
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wtu.drawFloatColorQuad(gl, [1, Math.random(), 1, 1]);
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}
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}, 200);
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function stop(msg) {
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debug(msg);
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window.clearInterval(intervalId);
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finishTest();
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}
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}
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}
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</script>
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</body>
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</html>
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