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)