diff options
Diffstat (limited to 'src/plugins/directshow/helpers/directshowobject.cpp')
-rw-r--r-- | src/plugins/directshow/helpers/directshowobject.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/plugins/directshow/helpers/directshowobject.cpp b/src/plugins/directshow/helpers/directshowobject.cpp new file mode 100644 index 000000000..b9d989f6e --- /dev/null +++ b/src/plugins/directshow/helpers/directshowobject.cpp @@ -0,0 +1,83 @@ +/**************************************************************************** +** +** 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 "directshowobject.h" + +DirectShowObject::DirectShowObject() + : m_ref(1) +{ +} + +DirectShowObject::~DirectShowObject() +{ + Q_ASSERT(m_ref == 0); +} + +HRESULT DirectShowObject::getInterface(const IID &riid, void **ppvObject) +{ + Q_UNUSED(riid) + *ppvObject = NULL; + return E_NOINTERFACE; +} + +ULONG DirectShowObject::ref() +{ + return InterlockedIncrement(&m_ref); +} + +ULONG DirectShowObject::unref() +{ + ULONG ref = InterlockedDecrement(&m_ref); + if (ref == 0) + delete this; + + return ref; +} + +HRESULT GetInterface(IUnknown *pUnk, void **ppv) +{ + if (!ppv) + return E_POINTER; + + *ppv = pUnk; + pUnk->AddRef(); + + return S_OK; +} + |