2 * Copyright (C) 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
28 #include "core/html/canvas/WebGLObject.h"
32 WebGLObject::WebGLObject(WebGLRenderingContextBase*)
34 , m_attachmentCount(0)
39 WebGLObject::~WebGLObject()
41 // Verify that platform objects have been explicitly deleted.
45 void WebGLObject::setObject(Platform3DObject object)
47 // object==0 && m_deleted==false indicating an uninitialized state;
48 ASSERT(!m_object && !m_deleted);
52 void WebGLObject::deleteObject(blink::WebGraphicsContext3D* context3d)
58 if (!hasGroupOrContext())
61 if (!m_attachmentCount) {
63 context3d = getAWebGraphicsContext3D();
66 deleteObjectImpl(context3d, m_object);
72 void WebGLObject::detach()
74 m_attachmentCount = 0; // Make sure OpenGL resource is deleted.
77 void WebGLObject::detachAndDeleteObject()
79 // Helper method that pairs detachment with platform object
82 // With Oilpan enabled, objects may end up being finalized without
83 // having been detached first. Consequently, the objects force
84 // detachment first before deleting the platform object. Without
85 // Oilpan, the objects will have been detached from the 'parent'
86 // objects first and do not separately require it when finalizing.
88 // However, as detach() is trivial, the individual WebGL
89 // destructors will always call detachAndDeleteObject() rather
90 // than do it based on Oilpan being enabled.
92 deleteObject(nullptr);
95 void WebGLObject::onDetached(blink::WebGraphicsContext3D* context3d)
97 if (m_attachmentCount)
100 deleteObject(context3d);