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      1 /*
      2  * Copyright (C) 2011 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/WebGLContextObject.h"
     29 
     30 #include "core/html/canvas/WebGLRenderingContext.h"
     31 
     32 namespace WebCore {
     33 
     34 WebGLContextObject::WebGLContextObject(WebGLRenderingContext* context)
     35     : WebGLObject(context)
     36     , m_context(context)
     37 {
     38 }
     39 
     40 WebGLContextObject::~WebGLContextObject()
     41 {
     42     if (m_context)
     43         m_context->removeContextObject(this);
     44 }
     45 
     46 void WebGLContextObject::detachContext()
     47 {
     48     detach();
     49     if (m_context) {
     50         deleteObject(m_context->graphicsContext3D());
     51         m_context->removeContextObject(this);
     52         m_context = 0;
     53     }
     54 }
     55 
     56 GraphicsContext3D* WebGLContextObject::getAGraphicsContext3D() const
     57 {
     58     return m_context ? m_context->graphicsContext3D() : 0;
     59 }
     60 
     61 }
     62