LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance2/extensions/webgl-get-buffer-sub-data-async-lose-context.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2016 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>WEBGL_get_buffer_sub_data_async context loss regression 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>
 <div id="description"></div>
 <canvas id="canvas" width="1" height="1"></canvas>
 <div id="console"></div>
 <script>
 "use strict";
 description("This test makes sure that getBufferSubDataAsync does not cause crashes upon context loss.");

 var wtu = WebGLTestUtils;
 var canvas = document.getElementById("canvas");

 var gl = wtu.create3DContext(canvas, undefined, 2);
 var WEBGL_get_buffer_sub_data_async = gl.getExtension("WEBGL_get_buffer_sub_data_async");
 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
 if (!WEBGL_get_buffer_sub_data_async) {
   testPassed("No WEBGL_get_buffer_sub_data_async support -- this is legal");
   finishTest();
 } else {
   testPassed("Successfully enabled WEBGL_get_buffer_sub_data_async extension");
   runTests();
 }

 var extension;

 function runTests() {
   var extensionName = wtu.getSupportedExtensionWithKnownPrefixes(gl, "WEBGL_lose_context");
   if (!extensionName) {
     debug("Could not find WEBGL_lose_context extension");
     return;
   }
   extension = gl.getExtension(extensionName);

   var iter = 0;
   var ITERS = 20;
   canvas.addEventListener("webglcontextrestored", test);
   canvas.addEventListener("webglcontextlost", function(e) {
     e.preventDefault();
     webglHarnessCollectGarbage();
     setTimeout(function() {
       wtu.shouldGenerateGLError(gl, gl.NO_ERROR, "extension.restoreContext()");
     }, 100);
   });

   test();

   function test() {
     shouldBeFalse("gl.isContextLost()");
     if (iter >= ITERS) {
       finishTest();
       return;
     }
     iter++;

     var pbo = gl.createBuffer();
     gl.bindBuffer(gl.PIXEL_PACK_BUFFER, pbo);
     gl.bufferData(gl.PIXEL_PACK_BUFFER, 4, gl.DYNAMIC_READ);
     gl.bindBuffer(gl.PIXEL_PACK_BUFFER, null);
     var readbackBuffer = new Uint8Array(4);

     gl.bindBuffer(gl.PIXEL_PACK_BUFFER, pbo);
     gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, 0);
     var promise = WEBGL_get_buffer_sub_data_async.getBufferSubDataAsync(gl.PIXEL_PACK_BUFFER, 0, readbackBuffer);
     gl.bindBuffer(gl.PIXEL_PACK_BUFFER, null);
     var completed = false;
     promise.then(function(buf) {
       testFailed("should not resolve");
     }, function(e) {
       testPassed("correctly rejected with " + e);
       wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no new errors from late rejection");
     }).then(function() {
       completed = true;
     });

     wtu.shouldGenerateGLError(gl, gl.CONTEXT_LOST_WEBGL, "extension.loseContext()");
   }
 }

 var successfullyParsed = true;
 </script>
 </body>
 </html>
	<!--

	/*
	** Copyright (c) 2016 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>WEBGL_get_buffer_sub_data_async context loss regression 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>
	<div id="description"></div>
	<canvas id="canvas" width="1" height="1"></canvas>
	<div id="console"></div>
	<script>
	"use strict";
	description("This test makes sure that getBufferSubDataAsync does not cause crashes upon context loss.");

	var wtu = WebGLTestUtils;
	var canvas = document.getElementById("canvas");

	var gl = wtu.create3DContext(canvas, undefined, 2);
	var WEBGL_get_buffer_sub_data_async = gl.getExtension("WEBGL_get_buffer_sub_data_async");
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
	if (!WEBGL_get_buffer_sub_data_async) {
	testPassed("No WEBGL_get_buffer_sub_data_async support -- this is legal");
	finishTest();
	} else {
	testPassed("Successfully enabled WEBGL_get_buffer_sub_data_async extension");
	runTests();
	}

	var extension;

	function runTests() {
	var extensionName = wtu.getSupportedExtensionWithKnownPrefixes(gl, "WEBGL_lose_context");
	if (!extensionName) {
	debug("Could not find WEBGL_lose_context extension");
	return;
	}
	extension = gl.getExtension(extensionName);

	var iter = 0;
	var ITERS = 20;
	canvas.addEventListener("webglcontextrestored", test);
	canvas.addEventListener("webglcontextlost", function(e) {
	e.preventDefault();
	webglHarnessCollectGarbage();
	setTimeout(function() {
	wtu.shouldGenerateGLError(gl, gl.NO_ERROR, "extension.restoreContext()");
	}, 100);
	});

	test();

	function test() {
	shouldBeFalse("gl.isContextLost()");
	if (iter >= ITERS) {
	finishTest();
	return;
	}
	iter++;

	var pbo = gl.createBuffer();
	gl.bindBuffer(gl.PIXEL_PACK_BUFFER, pbo);
	gl.bufferData(gl.PIXEL_PACK_BUFFER, 4, gl.DYNAMIC_READ);
	gl.bindBuffer(gl.PIXEL_PACK_BUFFER, null);
	var readbackBuffer = new Uint8Array(4);

	gl.bindBuffer(gl.PIXEL_PACK_BUFFER, pbo);
	gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, 0);
	var promise = WEBGL_get_buffer_sub_data_async.getBufferSubDataAsync(gl.PIXEL_PACK_BUFFER, 0, readbackBuffer);
	gl.bindBuffer(gl.PIXEL_PACK_BUFFER, null);
	var completed = false;
	promise.then(function(buf) {
	testFailed("should not resolve");
	}, function(e) {
	testPassed("correctly rejected with " + e);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no new errors from late rejection");
	}).then(function() {
	completed = true;
	});

	wtu.shouldGenerateGLError(gl, gl.CONTEXT_LOST_WEBGL, "extension.loseContext()");
	}
	}

	var successfullyParsed = true;
	</script>
	</body>
	</html>