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| 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"></scri
pt> |
| 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."); |
| 26 |
| 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 } |
| 35 |
| 36 function main() { |
| 37 debug(""); |
| 38 debug("Canvas.getContext"); |
| 39 |
| 40 var gl = create3DContext(document.getElementById("canvas")); |
| 41 if (!gl) { |
| 42 testFailed("context does not exist"); |
| 43 } else { |
| 44 testPassed("context exists"); |
| 45 |
| 46 debug(""); |
| 47 debug("Checking for out of memory handling."); |
| 48 |
| 49 var size = gl.getParameter(gl.MAX_RENDERBUFFER_SIZE); |
| 50 debug("max render buffer size: " + size); |
| 51 |
| 52 var allocateFramebuffers = true; |
| 53 var itervalId; |
| 54 var count = 0; |
| 55 |
| 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 }); |
| 62 |
| 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.g
lEnumToString(status) + |
| 94 " should have gotten gl.OUT_OF_MEMORY before getting this."
); |
| 95 window.clearInterval(intervalId); |
| 96 finish(); |
| 97 } |
| 98 } |
| 99 }, 1000/10); |
| 100 } |
| 101 |
| 102 function finish() { |
| 103 debug(""); |
| 104 successfullyParsed = true; |
| 105 } |
| 106 } |
| 107 </script> |
| 108 </body> |
| 109 </html> |
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Chromium Code Reviews
Issue 8342021:
Add webgl conformance tests r15841. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/