diff options
Diffstat (limited to 'src/plugins/wmf/player/mfactivate.cpp')
-rw-r--r-- | src/plugins/wmf/player/mfactivate.cpp | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/plugins/wmf/player/mfactivate.cpp b/src/plugins/wmf/player/mfactivate.cpp new file mode 100644 index 000000000..e06906584 --- /dev/null +++ b/src/plugins/wmf/player/mfactivate.cpp @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** 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; +} |