1/* 2 * Copyright (C) 2011 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 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27 28#include "core/html/canvas/OESVertexArrayObject.h" 29 30#include "bindings/core/v8/ExceptionState.h" 31#include "core/html/canvas/WebGLRenderingContextBase.h" 32#include "core/html/canvas/WebGLVertexArrayObjectOES.h" 33 34namespace blink { 35 36OESVertexArrayObject::OESVertexArrayObject(WebGLRenderingContextBase* context) 37 : WebGLExtension(context) 38{ 39 context->extensionsUtil()->ensureExtensionEnabled("GL_OES_vertex_array_object"); 40} 41 42OESVertexArrayObject::~OESVertexArrayObject() 43{ 44} 45 46WebGLExtensionName OESVertexArrayObject::name() const 47{ 48 return OESVertexArrayObjectName; 49} 50 51PassRefPtrWillBeRawPtr<OESVertexArrayObject> OESVertexArrayObject::create(WebGLRenderingContextBase* context) 52{ 53 return adoptRefWillBeNoop(new OESVertexArrayObject(context)); 54} 55 56PassRefPtrWillBeRawPtr<WebGLVertexArrayObjectOES> OESVertexArrayObject::createVertexArrayOES() 57{ 58 if (isLost()) 59 return nullptr; 60 61 RefPtrWillBeRawPtr<WebGLVertexArrayObjectOES> o = WebGLVertexArrayObjectOES::create(m_context, WebGLVertexArrayObjectOES::VaoTypeUser); 62 m_context->addContextObject(o.get()); 63 return o.release(); 64} 65 66void OESVertexArrayObject::deleteVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject) 67{ 68 if (!arrayObject || isLost()) 69 return; 70 71 if (!arrayObject->isDefaultObject() && arrayObject == m_context->m_boundVertexArrayObject) 72 m_context->setBoundVertexArrayObject(nullptr); 73 74 arrayObject->deleteObject(m_context->webContext()); 75} 76 77GLboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject) 78{ 79 if (!arrayObject || isLost()) 80 return 0; 81 82 if (!arrayObject->hasEverBeenBound()) 83 return 0; 84 85 return m_context->webContext()->isVertexArrayOES(arrayObject->object()); 86} 87 88void OESVertexArrayObject::bindVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject) 89{ 90 if (isLost()) 91 return; 92 93 if (arrayObject && (arrayObject->isDeleted() || !arrayObject->validate(0, context()))) { 94 m_context->webContext()->synthesizeGLError(GL_INVALID_OPERATION); 95 return; 96 } 97 98 if (arrayObject && !arrayObject->isDefaultObject() && arrayObject->object()) { 99 m_context->webContext()->bindVertexArrayOES(arrayObject->object()); 100 101 arrayObject->setHasEverBeenBound(); 102 m_context->setBoundVertexArrayObject(arrayObject); 103 } else { 104 m_context->webContext()->bindVertexArrayOES(0); 105 m_context->setBoundVertexArrayObject(nullptr); 106 } 107} 108 109bool OESVertexArrayObject::supported(WebGLRenderingContextBase* context) 110{ 111 return context->extensionsUtil()->supportsExtension("GL_OES_vertex_array_object"); 112} 113 114const char* OESVertexArrayObject::extensionName() 115{ 116 return "OES_vertex_array_object"; 117} 118 119} // namespace blink 120