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      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 #if ENABLE(3D_CANVAS)
     29 
     30 #include "CanvasObject.h"
     31 #include "WebGLRenderingContext.h"
     32 
     33 namespace WebCore {
     34 
     35 CanvasObject::CanvasObject(WebGLRenderingContext* context)
     36     : m_object(0)
     37     , m_shouldDeleteObject(true)
     38     , m_context(context)
     39 {
     40 }
     41 
     42 CanvasObject::~CanvasObject()
     43 {
     44     if (m_context)
     45         m_context->removeObject(this);
     46 }
     47 
     48 void CanvasObject::setObject(Platform3DObject object, bool shouldDeleteObject)
     49 {
     50     if (object == m_object)
     51         return;
     52 
     53     deleteObject();
     54     m_object = object;
     55     m_shouldDeleteObject = shouldDeleteObject;
     56 }
     57 
     58 void CanvasObject::deleteObject()
     59 {
     60     if (m_object) {
     61         if (m_shouldDeleteObject)
     62             if (m_context) {
     63                 m_context->graphicsContext3D()->makeContextCurrent();
     64                 _deleteObject(m_object);
     65             }
     66         m_object = 0;
     67     }
     68     m_shouldDeleteObject = true;
     69 }
     70 
     71 }
     72 
     73 #endif // ENABLE(3D_CANVAS)
     74