Index: conformance/manual/canvas-no-clear-on-readpixels.html |
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+<!-- |
+ |
+/* |
+** Copyright (c) 2012 The Khronos Group Inc. |
+** |
+** Permission is hereby granted, free of charge, to any person obtaining a |
+** copy of this software and/or associated documentation files (the |
+** "Materials"), to deal in the Materials without restriction, including |
+** without limitation the rights to use, copy, modify, merge, publish, |
+** distribute, sublicense, and/or sell copies of the Materials, and to |
+** permit persons to whom the Materials are furnished to do so, subject to |
+** the following conditions: |
+** |
+** The above copyright notice and this permission notice shall be included |
+** in all copies or substantial portions of the Materials. |
+** |
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
+*/ |
+ |
+--> |
+ |
+<!DOCTYPE html> |
+<html> |
+<head> |
+<meta charset="utf-8"> |
+<title>Check that the canvas is NOT recomposited after calling readPixels</title> |
+<link rel="stylesheet" href="../../resources/js-test-style.css"/> |
+<script src="../../resources/js-test-pre.js"></script> |
+<script src="../resources/webgl-test.js"></script> |
+<script src="../resources/webgl-test-utils.js"></script> |
+<style> |
+canvas { |
+ border: 1px solid black; |
+} |
+.correct { |
+ border: 1px solid black; |
+ background-color: #00ff00; |
+} |
+</style> |
+</head> |
+<body> |
+<pre> |
+This test must be run manually. |
+ |
+This test tests that a canvas is NOT cleared |
+and recomposited after calling readPixels. |
+ |
+You should see a <span class="correct">green rectangle</span> |
+with black a outline on success. |
+</pre> |
+<canvas id='c'></canvas> |
+<div id="console"></div> |
+<script> |
+"use strict"; |
+var wtu = WebGLTestUtils; |
+var c = document.getElementById("c"); |
+var gl = wtu.create3DContext(c); |
+gl.clearColor(0,1,0,1); |
+gl.clear(gl.COLOR_BUFFER_BIT); |
+wtu.waitForComposite(gl, function() { |
+ gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8Array(4)); |
+ glErrorShouldBe(gl, gl.NO_ERROR, "no errors"); |
+}); |
+</script> |
+</body> |
+</html> |
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