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Issue 8342021: Add webgl conformance tests r15841. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/
Patch Set: Created 9 years, 2 months ago
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1 <!DOCTYPE HTML>
2 <html>
3 <head>
4 <meta charset="utf-8">
5 <title>WebGL required buffer clear behaviour test</title>
6 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
7 <script src="../../resources/js-test-pre.js"></script>
8 <script src="../resources/webgl-test.js"> </script>
9 <script src="../resources/webgl-test-utils.js"> </script>
10 <style type="text/css">
11 body {
12 height: 3000px;
13 }
14 </style>
15 <script type="text/javascript">
16
17 var iter = 0;
18 var gl1;
19
20 var wtu = WebGLTestUtils;
21
22 function timer() {
23 if (iter == 0) {
24 function init(gl) {
25 gl.clearColor(1, 0, 0, 1);
26 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER _BIT);
27
28 // enable scissor here, before compositing, to make sure it's correctl y
29 // ignored and restored
30 gl.scissor(0, 10, 10, 10);
31 gl.enable(gl.SCISSOR_TEST);
32 }
33 init(gl1);
34 } else if (iter == 1) {
35 // some random hacky stuff to make sure that we get a compositing step
36 window.scrollBy(0, 10);
37 window.scrollBy(0, -10);
38 } else if (iter == 2) {
39 function clear(gl) {
40 // scissor was set earlier
41 gl.clearColor(0, 0, 1, 1);
42 gl.clear(gl.COLOR_BUFFER_BIT);
43
44 wtu.checkCanvasRect(gl, 0, 10, 10, 10, [0, 0, 255, 255], "cleared co rner should be blue, stencil should be preserved");
45 wtu.checkCanvasRect(gl, 0, 0, 10, 10, [0, 0, 0, 0], "remainder of bu ffer should be cleared");
46 }
47 clear(gl1);
48
49 finishTest();
50 return;
51 }
52
53 iter++;
54 setTimeout(timer, 500);
55 }
56
57 function go() {
58 description("This test ensures WebGL implementations correctly clear the dra wing buffer on composite if preserveDrawingBuffer is false.");
59
60 debug("");
61
62 gl1 = create3DContext(document.getElementById("c"));
63 if (!gl1) {
64 finishTest();
65 return;
66 }
67
68 shouldBeTrue("gl1 != null");
69 shouldBeTrue('gl1.getContextAttributes().preserveDrawingBuffer == false');
70
71 setTimeout(timer, 500);
72 }
73
74 window.addEventListener("load", go, false);
75
76 successfullyParsed = true;
77 </script>
78 </head>
79 <body>
80 <!-- Important to put the canvas at the top so that it's always visible even in the test suite runner.
81 Otherwise it just doesn't get composited in Firefox. -->
82 <canvas width="20" height="20" style="border: 1px solid blue;" id="c"></canvas>
83 <div id="description"></div>
84 <div id="console"></div>
85 </body>
86 </html>
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