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https://github.com/servo/servo.git
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79 lines
2.7 KiB
HTML
79 lines
2.7 KiB
HTML
<!--
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/*
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** Copyright (c) 2018 The Khronos Group Inc.
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**
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** Permission is hereby granted, free of charge, to any person obtaining a
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** copy of this software and/or associated documentation files (the
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** "Materials"), to deal in the Materials without restriction, including
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** without limitation the rights to use, copy, modify, merge, publish,
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** distribute, sublicense, and/or sell copies of the Materials, and to
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** permit persons to whom the Materials are furnished to do so, subject to
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** the following conditions:
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**
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** The above copyright notice and this permission notice shall be included
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** in all copies or substantial portions of the Materials.
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**
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** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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*/
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-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>WebGL2 Canvas Context Mode Conformance Tests</title>
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<link rel="stylesheet" href="../../resources/js-test-style.css"/>
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<script src=/resources/testharness.js></script>
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<script src=/resources/testharnessreport.js></script>
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<script src="../../js/js-test-pre.js"></script>
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<script src="../../js/webgl-test-utils.js"></script>
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</head>
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<body>
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<div id="description"></div>
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<div id="console"></div>
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<script>
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"use strict";
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description("This test ensures WebGL 2.0 implementations respect the canvas's context mode.");
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debug("");
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assertMsg(window.WebGLRenderingContext,
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"WebGL2RenderingContext should be a member of window");
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assertMsg('WebGL2RenderingContext' in window,
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"WebGL2RenderingContext should be 'in' window");
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function testContextMode(mode, altMode) {
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debug("Testing " + mode + " context type");
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let c = document.createElement('canvas');
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c.width = 2;
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c.height = 2;
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let gl = c.getContext(mode);
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assertMsg(c.getContext(mode) == gl,
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"Canvas.getContext('" + mode + "') should return the same value every time");
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try {
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assertMsg(c.getContext(altMode) == null,
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"Canvas.getContext('" + altMode + "') after getContext('" + mode + "') should return null");
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} catch (e) {
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testFailed("Canvas.getContext('" + altMode + "') after getContext('" + mode + "') should not throw an exception");
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}
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}
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testContextMode('webgl2', 'webgl');
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testContextMode('webgl', 'webgl2');
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debug("");
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var successfullyParsed = true;
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</script>
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<script src="../../js/js-test-post.js"></script>
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</body>
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</html>
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