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 #if ENABLE(WEBGL) 29 30 #include "OESVertexArrayObject.h" 31 32 #include "Extensions3D.h" 33 #include "WebGLRenderingContext.h" 34 #include "WebGLVertexArrayObjectOES.h" 35 36 namespace WebCore { 37 38 OESVertexArrayObject::OESVertexArrayObject(WebGLRenderingContext* context) 39 : WebGLExtension() 40 , m_context(context) 41 { 42 } 43 44 OESVertexArrayObject::~OESVertexArrayObject() 45 { 46 } 47 48 WebGLExtension::ExtensionName OESVertexArrayObject::getName() const 49 { 50 return OESVertexArrayObjectName; 51 } 52 53 PassRefPtr<OESVertexArrayObject> OESVertexArrayObject::create(WebGLRenderingContext* context) 54 { 55 return adoptRef(new OESVertexArrayObject(context)); 56 } 57 58 PassRefPtr<WebGLVertexArrayObjectOES> OESVertexArrayObject::createVertexArrayOES() 59 { 60 if (m_context->isContextLost()) 61 return 0; 62 63 RefPtr<WebGLVertexArrayObjectOES> o = WebGLVertexArrayObjectOES::create(m_context, WebGLVertexArrayObjectOES::VaoTypeUser); 64 m_context->addObject(o.get()); 65 return o.release(); 66 } 67 68 void OESVertexArrayObject::deleteVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject) 69 { 70 if (!arrayObject || m_context->isContextLost()) 71 return; 72 73 arrayObject->deleteObject(); 74 } 75 76 GC3Dboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject) 77 { 78 if (!arrayObject || m_context->isContextLost()) 79 return 0; 80 81 if (!arrayObject->hasEverBeenBound()) 82 return 0; 83 84 Extensions3D* extensions = m_context->graphicsContext3D()->getExtensions(); 85 return extensions->isVertexArrayOES(arrayObject->object()); 86 } 87 88 void OESVertexArrayObject::bindVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject, ExceptionCode& ec) 89 { 90 UNUSED_PARAM(ec); 91 if (m_context->isContextLost()) 92 return; 93 94 if (arrayObject && arrayObject->context() != m_context) { 95 m_context->graphicsContext3D()->synthesizeGLError(GraphicsContext3D::INVALID_OPERATION); 96 return; 97 } 98 99 Extensions3D* extensions = m_context->graphicsContext3D()->getExtensions(); 100 if (arrayObject && !arrayObject->isDefaultObject() && arrayObject->object()) { 101 extensions->bindVertexArrayOES(arrayObject->object()); 102 103 arrayObject->setHasEverBeenBound(); 104 m_context->setBoundVertexArrayObject(arrayObject); 105 } else { 106 extensions->bindVertexArrayOES(0); 107 108 m_context->setBoundVertexArrayObject(0); 109 } 110 111 m_context->cleanupAfterGraphicsCall(false); 112 } 113 114 } // namespace WebCore 115 116 #endif // ENABLE(WEBGL) 117