text: /*
   * 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"
  
  #if ENABLE(WEBGL)
  
  #include "WebGLObject.h"
  
  #include "WebGLRenderingContext.h"
  
  namespace WebCore {
  
  WebGLObject::WebGLObject(WebGLRenderingContext* context)
      : m_object(0)
      , m_context(context)
      , m_attachmentCount(0)
      , m_deleted(false)
  {
  }
  
  WebGLObject::~WebGLObject()
  {
      if (m_context)
          m_context->removeObject(this);
  }
  
  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()
  {
      m_deleted = true;
      if (!m_context || !m_object)
          return;
      if (!m_attachmentCount) {
          m_context->graphicsContext3D()->makeContextCurrent();
          deleteObjectImpl(m_object);
          m_object = 0;
      }
  }
  
  }
  
  #endif // ENABLE(WEBGL)
  