/* * Copyright (C) 2009 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "core/html/canvas/WebGLObject.h" namespace WebCore { WebGLObject::WebGLObject(WebGLRenderingContextBase*) : m_object(0) , m_attachmentCount(0) , m_deleted(false) { } WebGLObject::~WebGLObject() { } void WebGLObject::setObject(Platform3DObject object) { // object==0 && m_deleted==false indicating an uninitialized state; ASSERT(!m_object && !m_deleted); m_object = object; } void WebGLObject::deleteObject(blink::WebGraphicsContext3D* context3d) { m_deleted = true; if (!m_object) return; if (!hasGroupOrContext()) return; if (!m_attachmentCount) { if (!context3d) context3d = getAWebGraphicsContext3D(); if (context3d) deleteObjectImpl(context3d, m_object); m_object = 0; } } void WebGLObject::detach() { m_attachmentCount = 0; // Make sure OpenGL resource is deleted. } void WebGLObject::onDetached(blink::WebGraphicsContext3D* context3d) { if (m_attachmentCount) --m_attachmentCount; if (m_deleted) deleteObject(context3d); } }