1/* 2 * Copyright (C) 2009 Apple 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/WebGLBuffer.h" 29 30#include "core/html/canvas/WebGLRenderingContextBase.h" 31 32namespace blink { 33 34PassRefPtrWillBeRawPtr<WebGLBuffer> WebGLBuffer::create(WebGLRenderingContextBase* ctx) 35{ 36 return adoptRefWillBeNoop(new WebGLBuffer(ctx)); 37} 38 39WebGLBuffer::WebGLBuffer(WebGLRenderingContextBase* ctx) 40 : WebGLSharedObject(ctx) 41 , m_target(0) 42{ 43 setObject(ctx->webContext()->createBuffer()); 44} 45 46WebGLBuffer::~WebGLBuffer() 47{ 48 // Delete the buffer's platform object. This object will have been 49 // detached from the WebGLContextGroup if the group object was 50 // finalized first. With Oilpan not enabled, it always will be, 51 // but with Oilpan enabled, the WebGLBuffer might end up being 52 // finalized first. In which case detachment is needed to ensure 53 // that the platform object is indeed deleted. 54 // 55 // To keep the code regular, the trivial detach()ment is always 56 // performed. 57 detachAndDeleteObject(); 58} 59 60void WebGLBuffer::deleteObjectImpl(blink::WebGraphicsContext3D* context3d, Platform3DObject object) 61{ 62 context3d->deleteBuffer(object); 63} 64 65void WebGLBuffer::setTarget(GLenum target) 66{ 67 // In WebGL, a buffer is bound to one target in its lifetime 68 if (m_target) 69 return; 70 if (target == GL_ARRAY_BUFFER || target == GL_ELEMENT_ARRAY_BUFFER) 71 m_target = target; 72} 73 74} 75