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Viewing changes to Source/ThirdParty/ANGLE/src/common/RefCountObject.cpp

  • Committer: Package Import Robot
  • Author(s): Jonathan Riddell
  • Date: 2013-02-18 14:24:18 UTC
  • Revision ID: package-import@ubuntu.com-20130218142418-eon0jmjg3nj438uy
Tags: upstream-2.3
Import upstream version 2.3

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Source/ThirdParty/ANGLE/src/common/RefCountObject.cpp
 
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//
 
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// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
 
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// Use of this source code is governed by a BSD-style license that can be
 
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// found in the LICENSE file.
 
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//
 
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// RefCountObject.cpp: Defines the gl::RefCountObject base class that provides
 
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// lifecycle support for GL objects using the traditional BindObject scheme, but
 
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// that need to be reference counted for correct cross-context deletion.
 
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// (Concretely, textures, buffers and renderbuffers.)
 
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#include "RefCountObject.h"
 
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RefCountObject::RefCountObject(GLuint id)
 
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{
 
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    mId = id;
 
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    mRefCount = 0;
 
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}
 
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RefCountObject::~RefCountObject()
 
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{
 
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    ASSERT(mRefCount == 0);
 
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}
 
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void RefCountObject::addRef() const
 
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{
 
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    mRefCount++;
 
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}
 
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void RefCountObject::release() const
 
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{
 
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    ASSERT(mRefCount > 0);
 
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    if (--mRefCount == 0)
 
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    {
 
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        delete this;
 
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    }
 
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}
 
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void RefCountObjectBindingPointer::set(RefCountObject *newObject)
 
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{
 
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    // addRef first in case newObject == mObject and this is the last reference to it.
 
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    if (newObject != NULL) newObject->addRef();
 
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    if (mObject != NULL) mObject->release();
 
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    mObject = newObject;
 
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}