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Issue 7452004: Updated WebGL snapshot to 15100. (Closed) Base URL: http://src.chromium.org/svn/trunk/deps
Patch Set: Created 9 years, 5 months ago
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1 <!DOCTYPE HTML> 1 <!DOCTYPE HTML>
2 <html> 2 <html>
3 <head> 3 <head>
4 <meta charset="utf-8"> 4 <meta charset="utf-8">
5 <title>WebGL required buffer clear behaviour test</title> 5 <title>WebGL required buffer clear behaviour test</title>
6 <link rel="stylesheet" href="../resources/js-test-style.css"/> 6 <link rel="stylesheet" href="../resources/js-test-style.css"/>
7 <script src="../resources/js-test-pre.js"></script> 7 <script src="../resources/js-test-pre.js"></script>
8 <script src="resources/webgl-test.js"> </script> 8 <script src="resources/webgl-test.js"> </script>
9 <script src="resources/webgl-test-utils.js"> </script> 9 <script src="resources/webgl-test-utils.js"> </script>
10 <style type="text/css"> 10 <style type="text/css">
11 body { 11 body {
12 height: 3000px; 12 height: 3000px;
13 } 13 }
14 </style> 14 </style>
15 <script type="text/javascript"> 15 <script type="text/javascript">
16 16
17 var iter = 0; 17 var iter = 0;
18 var gl; 18 var gl1;
19 19
20 var wtu = WebGLTestUtils; 20 var wtu = WebGLTestUtils;
21 21
22 function checkPixel(gl, x, y, c) {
23 var buf = new Uint8Array(4);
24 gl.readPixels(x, y, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buf);
25
26 return buf[0] == c[0] &&
27 buf[1] == c[1] &&
28 buf[2] == c[2] &&
29 buf[3] == c[3];
30 }
31
32 function timer() { 22 function timer() {
33 if (iter == 0) { 23 if (iter == 0) {
34 » // some random hacky stuff to make sure that we get a compositing step 24 // some random hacky stuff to make sure that we get a compositing step
35 » window.scrollBy(0, 10); 25 window.scrollBy(0, 10);
36 » window.scrollBy(0, -10); 26 window.scrollBy(0, -10);
37 » iter++; 27 iter++;
38 28
39 » setTimeout(timer, 500); 29 setTimeout(timer, 500);
40 } else if (iter == 1) { 30 } else if (iter == 1) {
41 » // scissor was set earlier 31 function clear(gl) {
42 » gl.clearColor(0, 0, 1, 1); 32 // scissor was set earlier
43 » gl.clear(gl.COLOR_BUFFER_BIT); 33 gl.clearColor(0, 0, 1, 1);
34 gl.clear(gl.COLOR_BUFFER_BIT);
44 35
45 » wtu.checkCanvasRect(gl, 0, 10, 10, 10, [0, 0, 255, 255], "cleared corner should be blue, stencil should be preserved"); 36 wtu.checkCanvasRect(gl, 0, 10, 10, 10, [0, 0, 255, 255], "cleared co rner should be blue, stencil should be preserved");
46 » wtu.checkCanvasRect(gl, 0, 0, 10, 10, [0, 0, 0, 0], "remainder of buffer should be cleared"); 37 wtu.checkCanvasRect(gl, 0, 0, 10, 10, [0, 0, 0, 0], "remainder of bu ffer should be cleared");
38 }
39 clear(gl1);
47 40
48 » finishTest(); 41 finishTest();
49 } 42 }
50 } 43 }
51 44
52 function go() { 45 function go() {
53 description("This test ensures WebGL implementations correctly clear the dra wing buffer on composite if preserveDrawingBuffer is false."); 46 description("This test ensures WebGL implementations correctly clear the dra wing buffer on composite if preserveDrawingBuffer is false.");
54 47
55 debug(""); 48 debug("");
56 49
57 gl = create3DContext(document.getElementById("c")); 50 gl1 = create3DContext(document.getElementById("c"));
58 if (!gl) { 51 if (!gl1) {
59 » finishTest(); 52 finishTest();
60 » return; 53 return;
61 } 54 }
62 55
63 shouldBeTrue('gl.getContextAttributes().preserveDrawingBuffer == false'); 56 shouldBeTrue("gl1 != null");
57 shouldBeTrue('gl1.getContextAttributes().preserveDrawingBuffer == false');
64 58
65 gl.clearColor(1, 0, 0, 1); 59 function init(gl) {
66 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT); 60 gl.clearColor(1, 0, 0, 1);
61 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_B IT);
67 62
68 // enable scissor here, before compositing, to make sure it's correctly 63 // enable scissor here, before compositing, to make sure it's correctly
69 // ignored and restored 64 // ignored and restored
70 gl.scissor(0, 10, 10, 10); 65 gl.scissor(0, 10, 10, 10);
71 gl.enable(gl.SCISSOR_TEST); 66 gl.enable(gl.SCISSOR_TEST);
67 }
68
69 init(gl1);
72 70
73 setTimeout(timer, 500); 71 setTimeout(timer, 500);
74 } 72 }
75 73
76 window.addEventListener("load", go, false); 74 window.addEventListener("load", go, false);
77 75
78 successfullyParsed = true; 76 successfullyParsed = true;
79 </script> 77 </script>
80 </head> 78 </head>
81 <body> 79 <body>
82 <div id="description"></div> 80 <div id="description"></div>
83 <canvas width="20" height="20" style="border: 1px solid blue;" id="c"></canvas> 81 <canvas width="20" height="20" style="border: 1px solid blue;" id="c"></canvas>
84 <div id="console"></div> 82 <div id="console"></div>
85 </body> 83 </body>
86 </html> 84 </html>
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