| <!-- |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL Context Release Test</title> |
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| <script src="../../js/js-test-pre.js"></script> |
| <script src="../../js/webgl-test-utils.js"></script> |
| </head> |
| <body> |
| <iframe id="host" style="width: 256px; height: 256px; border: 0;"></iframe> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script> |
| "use strict"; |
| description("This test ensures that WebGL contexts are released properly upon page reload"); |
| |
| var wtu = WebGLTestUtils; |
| |
| var host = document.getElementById("host"); |
| var testIterations = 25; |
| var currentIteration = 0; |
| |
| function refreshFrame() { |
| if(currentIteration < testIterations) { |
| currentIteration++; |
| debug(""); |
| debug("Test " + currentIteration + " of " + testIterations); |
| host.src = "resources/context-release-upon-reload-child.html"; |
| } else { |
| finishTest(); |
| } |
| } |
| |
| function testContext() { |
| var gl = host.contentWindow.glContext; |
| assertMsg(gl != null, "context was created properly"); |
| |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors"); |
| |
| if(gl.canvas.width != gl.drawingBufferWidth || |
| gl.canvas.height != gl.drawingBufferHeight) { |
| testFailed("Buffer was the wrong size: " + |
| gl.drawingBufferWidth + "x" + gl.drawingBufferHeight); |
| } else { |
| testPassed("Buffer was the correct size: " + |
| gl.drawingBufferWidth + "x" + gl.drawingBufferHeight); |
| refreshFrame(); |
| } |
| |
| gl = null; |
| } |
| |
| window.addEventListener("message", function(event) { |
| if(event.data == "Ready") { |
| testContext(); |
| } |
| }); |
| |
| refreshFrame(); |
| |
| var successfullyParsed = true; |
| </script> |
| |
| </body> |
| </html> |
