1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 28 #include "core/html/canvas/WebGLLoseContext.h" 29 30 #include "core/html/canvas/WebGLRenderingContextBase.h" 31 32 namespace WebCore { 33 34 WebGLLoseContext::WebGLLoseContext(WebGLRenderingContextBase* context) 35 : WebGLExtension(context) 36 { 37 ScriptWrappable::init(this); 38 } 39 40 WebGLLoseContext::~WebGLLoseContext() 41 { 42 } 43 44 void WebGLLoseContext::lose(bool force) 45 { 46 if (force) 47 WebGLExtension::lose(true); 48 } 49 50 WebGLExtensionName WebGLLoseContext::name() const 51 { 52 return WebGLLoseContextName; 53 } 54 55 PassRefPtr<WebGLLoseContext> WebGLLoseContext::create(WebGLRenderingContextBase* context) 56 { 57 return adoptRef(new WebGLLoseContext(context)); 58 } 59 60 void WebGLLoseContext::loseContext() 61 { 62 if (!isLost()) 63 m_context->forceLostContext(WebGLRenderingContextBase::SyntheticLostContext); 64 } 65 66 void WebGLLoseContext::restoreContext() 67 { 68 if (!isLost()) 69 m_context->forceRestoreContext(); 70 } 71 72 bool WebGLLoseContext::supported(WebGLRenderingContextBase*) 73 { 74 return true; 75 } 76 77 const char* WebGLLoseContext::extensionName() 78 { 79 return "WEBGL_lose_context"; 80 } 81 82 } // namespace WebCore 83