content/canvas/test/webgl-conformance/extra/out-of-resources.html@6474c204b198
content/canvas/test/webgl-conformance/extra/out-of-resources.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 <!--
2 Copyright (c) 2009 The Chromium Authors. All rights reserved.
3 Use of this source code is governed by a BSD-style license that can be
4 found in the LICENSE file.
5 -->
6 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
7 "http://www.w3.org/TR/html4/loose.dtd">
8 <html>
9 <head>
10 <meta charset="utf-8">
11 <title>WebGL Out Of Resources Test</title>
12 <link rel="stylesheet" href="../resources/js-test-style.css"/>
13 <script src="../resources/desktop-gl-constants.js" type="text/javascript"></script>
14 <script src="../../debug/webgl-debug.js"></script>
15 <script src="../resources/js-test-pre.js"></script>
16 <script src="../conformance/resources/webgl-test.js"></script>
17 </head>
18 <body>
19 <div id="description"></div>
20 <div id="console"></div>
21 <canvas id="canvas" width="2" height="2"> </canvas>
22 <canvas id="canvas2" width="2" height="2"> </canvas>
23 <script>
24 window.onload = init;
25 debug("Tests a WebGL program that tries to use all of vram.");
27 function init() {
28 if (confirm(
29 "after clicking ok your machine may be come unresponsive or crash")) {
30 main();
31 } else {
32 debug("cancelled");
33 }
34 }
36 function main() {
37 debug("");
38 debug("Canvas.getContext");
40 var gl = create3DContext(document.getElementById("canvas"));
41 if (!gl) {
42 testFailed("context does not exist");
43 } else {
44 testPassed("context exists");
46 debug("");
47 debug("Checking for out of memory handling.");
49 var size = gl.getParameter(gl.MAX_RENDERBUFFER_SIZE);
50 debug("max render buffer size: " + size);
52 var allocateFramebuffers = true;
53 var itervalId;
54 var count = 0;
56 gl = WebGLDebugUtils.makeDebugContext(gl, function(err, functionName, args) {
57 window.clearInterval(intervalId);
58 assertMsg(err == gl.OUT_OF_MEMORY,
59 "correctly returns gl.OUT_OF_MEMORY when out of memory");
60 finish();
61 });
63 intervalId = window.setInterval(function() {
64 ++count;
65 var mem = count * size * size * 4;
66 debug("#" + count + " : memory allocated so far " + (mem / 1024 / 1024) + "MB");
67 var tex = gl.createTexture();
68 gl.bindTexture(gl.TEXTURE_2D, tex);
69 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
70 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
71 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
72 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
73 gl.texImage2D(gl.TEXTURE_2D,
74 0, // level
75 gl.RGBA, // internalFormat
76 size, // width
77 size, // height
78 0, // border
79 gl.RGBA, // format
80 gl.UNSIGNED_BYTE, // type
81 null); // data
82 if (allocateFrameBuffers) {
83 var fb = gl.createFramebuffer();
84 gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
85 gl.framebufferTexture2D(
86 gl.FRAMEBUFFER,
87 gl.COLOR_ATTACHMENT0,
88 gl.TEXTURE_2D,
89 tex,
90 0);
91 var status = gl.checkFramebufferStatus(gl.FRAMEBUFFER);
92 if (status != gl.FRAMEBUFFER_COMPLETE) {
93 testFailed("gl.checkFramebufferStatus() returned " + WebGLDebugUtils.glEnumToString(status) +
94 " should have gotten gl.OUT_OF_MEMORY before getting this.");
95 window.clearInterval(intervalId);
96 finish();
97 }
98 }
99 }, 1000/10);
100 }
102 function finish() {
103 debug("");
104 successfullyParsed = true;
105 }
106 }
107 </script>
108 </body>
109 </html>
