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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwinrtplayerrenderercontrol.h"
#include <QtCore/qfunctions_winrt.h>
#include <QtCore/QGlobalStatic>
#include <QtMultimedia/QAbstractVideoSurface>
#include <QtMultimedia/QVideoSurfaceFormat>
#include <QtGui/QGuiApplication>
#include <QtGui/QOpenGLTexture>
#include <QtGui/QOpenGLContext>
#define EGL_EGLEXT_PROTOTYPES
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <d3d11.h>
#include <mfapi.h>
#include <mfmediaengine.h>
#include <wrl.h>
using namespace Microsoft::WRL;
QT_USE_NAMESPACE
template <typename T>
class D3DDeviceLocker
{
public:
D3DDeviceLocker(IMFDXGIDeviceManager *manager, HANDLE deviceHandle, T **device)
: m_manager(manager), m_deviceHandle(deviceHandle)
{
HRESULT hr = m_manager->LockDevice(m_deviceHandle, IID_PPV_ARGS(device), TRUE);
if (FAILED(hr))
qErrnoWarning(hr, "Failed to lock the D3D device");
}
~D3DDeviceLocker()
{
HRESULT hr = m_manager->UnlockDevice(m_deviceHandle, FALSE);
if (FAILED(hr))
qErrnoWarning(hr, "Failed to unlock the D3D device");
}
private:
IMFDXGIDeviceManager *m_manager;
HANDLE m_deviceHandle;
};
class QWinRTPlayerRendererControlPrivate
{
public:
ComPtr<IMFMediaEngineEx> engine;
ComPtr<IMFDXGIDeviceManager> manager;
quint32 resetToken;
HANDLE deviceHandle;
};
QWinRTPlayerRendererControl::QWinRTPlayerRendererControl(IMFMediaEngineEx *engine, IMFDXGIDeviceManager *manager, quint32 resetToken, QObject *parent)
: QWinRTAbstractVideoRendererControl(QSize(), parent), d_ptr(new QWinRTPlayerRendererControlPrivate)
{
Q_D(QWinRTPlayerRendererControl);
d->engine = engine;
d->manager = manager;
d->resetToken = resetToken;
d->deviceHandle = 0;
}
QWinRTPlayerRendererControl::~QWinRTPlayerRendererControl()
{
shutdown();
}
bool QWinRTPlayerRendererControl::ensureReady()
{
Q_D(QWinRTPlayerRendererControl);
HRESULT hr;
hr = d->manager->TestDevice(d->deviceHandle);
if (hr == MF_E_DXGI_NEW_VIDEO_DEVICE || FAILED(hr)) {
d->manager->CloseDeviceHandle(d->deviceHandle);
hr = d->manager->ResetDevice(d3dDevice(), d->resetToken);
RETURN_FALSE_IF_FAILED("Failed to reset the DXGI manager device");
hr = d->manager->OpenDeviceHandle(&d->deviceHandle);
RETURN_FALSE_IF_FAILED("Failed to open device handle");
}
return SUCCEEDED(hr);
}
bool QWinRTPlayerRendererControl::render(ID3D11Texture2D *texture)
{
Q_D(QWinRTPlayerRendererControl);
if (!ensureReady())
return false;
HRESULT hr;
LONGLONG ts;
hr = d->engine->OnVideoStreamTick(&ts);
RETURN_FALSE_IF_FAILED("Failed to obtain video stream tick");
if (hr == S_FALSE) // Frame not available, nothing to do
return false;
ComPtr<ID3D11Device> device;
D3DDeviceLocker<ID3D11Device> locker(d->manager.Get(), d->deviceHandle, device.GetAddressOf());
MFVideoNormalizedRect sourceRect = { 0, 0, 1, 1 };
const QSize frameSize = size();
RECT destRect = { 0, 0, frameSize.width(), frameSize.height() };
MFARGB borderColor = { 255, 255, 255, 255 };
hr = d->engine->TransferVideoFrame(texture, &sourceRect, &destRect, &borderColor);
RETURN_FALSE_IF_FAILED("Failed to transfer video frame to DXGI surface");
return true;
}
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