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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 // some random hacky stuff to make sure that we get a compositing step | |
| 25 window.scrollBy(0, 10); | |
| 26 window.scrollBy(0, -10); | |
| 27 iter++; | |
| 28 | |
| 29 setTimeout(timer, 500); | |
| 30 } else if (iter == 1) { | |
| 31 function clear(gl) { | |
| 32 // scissor was set earlier | |
| 33 gl.clearColor(0, 0, 1, 1); | |
| 34 gl.clear(gl.COLOR_BUFFER_BIT); | |
| 35 | |
| 36 wtu.checkCanvasRect(gl, 0, 10, 10, 10, [0, 0, 255, 255], "cleared co
rner should be blue, stencil should be preserved"); | |
| 37 wtu.checkCanvasRect(gl, 0, 0, 10, 10, [0, 0, 0, 0], "remainder of bu
ffer should be cleared"); | |
| 38 } | |
| 39 clear(gl1); | |
| 40 | |
| 41 finishTest(); | |
| 42 } | |
| 43 } | |
| 44 | |
| 45 function go() { | |
| 46 description("This test ensures WebGL implementations correctly clear the dra
wing buffer on composite if preserveDrawingBuffer is false."); | |
| 47 | |
| 48 debug(""); | |
| 49 | |
| 50 gl1 = create3DContext(document.getElementById("c")); | |
| 51 if (!gl1) { | |
| 52 finishTest(); | |
| 53 return; | |
| 54 } | |
| 55 | |
| 56 shouldBeTrue("gl1 != null"); | |
| 57 shouldBeTrue('gl1.getContextAttributes().preserveDrawingBuffer == false'); | |
| 58 | |
| 59 function init(gl) { | |
| 60 gl.clearColor(1, 0, 0, 1); | |
| 61 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_B
IT); | |
| 62 | |
| 63 // enable scissor here, before compositing, to make sure it's correctly | |
| 64 // ignored and restored | |
| 65 gl.scissor(0, 10, 10, 10); | |
| 66 gl.enable(gl.SCISSOR_TEST); | |
| 67 } | |
| 68 | |
| 69 init(gl1); | |
| 70 | |
| 71 setTimeout(timer, 500); | |
| 72 } | |
| 73 | |
| 74 window.addEventListener("load", go, false); | |
| 75 | |
| 76 successfullyParsed = true; | |
| 77 </script> | |
| 78 </head> | |
| 79 <body> | |
| 80 <div id="description"></div> | |
| 81 <canvas width="20" height="20" style="border: 1px solid blue;" id="c"></canvas> | |
| 82 <div id="console"></div> | |
| 83 </body> | |
| 84 </html> | |
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Chromium Code Reviews
Issue 8344024:
Remove older revision of webgl conformance tests. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/