| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "mfactivate.h" |
| |
| #include <mfapi.h> |
| |
| MFAbstractActivate::MFAbstractActivate() |
| : m_attributes(0) |
| , m_cRef(1) |
| { |
| MFCreateAttributes(&m_attributes, 0); |
| } |
| |
| MFAbstractActivate::~MFAbstractActivate() |
| { |
| if (m_attributes) |
| m_attributes->Release(); |
| } |
| |
| |
| HRESULT MFAbstractActivate::QueryInterface(REFIID riid, LPVOID *ppvObject) |
| { |
| if (!ppvObject) |
| return E_POINTER; |
| if (riid == IID_IMFActivate) { |
| *ppvObject = static_cast<IMFActivate*>(this); |
| } else if (riid == IID_IMFAttributes) { |
| *ppvObject = static_cast<IMFAttributes*>(this); |
| } else if (riid == IID_IUnknown) { |
| *ppvObject = static_cast<IUnknown*>(static_cast<IMFActivate*>(this)); |
| } else { |
| *ppvObject = NULL; |
| return E_NOINTERFACE; |
| } |
| AddRef(); |
| return S_OK; |
| } |
| |
| ULONG MFAbstractActivate::AddRef(void) |
| { |
| return InterlockedIncrement(&m_cRef); |
| } |
| |
| ULONG MFAbstractActivate::Release(void) |
| { |
| ULONG cRef = InterlockedDecrement(&m_cRef); |
| if (cRef == 0) |
| delete this; |
| return cRef; |
| } |