WMF: enabled HW-accelerated video decoding for the QML video item.
It also applies to QGraphicsVideoItem when used on a GL viewport. We now have a new video sink that is based on Microsoft's EVR sink, we just replace the default Presenter with our own. Frames are rendered into D3D surfaces using DXVA, then copied into a shared D3D/EGL surface and finally bound to a GL texture to be used by the video surface. The shared D3D/EGL surface is a feature provided by ANGLE and therefore Qt must be compiled with ANGLE for this new video sink to be compiled and used. Change-Id: I0b7b9968eed5488f9ef1a2dcca5213bd0af232ab Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
This commit is contained in:
Yoann Lopes
committed by
The Qt Project
The Qt Project
parent
02add40392
commit
101c78983a
580
src/plugins/wmf/evrd3dpresentengine.cpp
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580
src/plugins/wmf/evrd3dpresentengine.cpp
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@@ -0,0 +1,580 @@
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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
|
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** 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 Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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||||
** use the contact form at http://qt.digia.com/contact-us.
|
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**
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||||
** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
|
||||
** General Public License version 2.1 as published by the Free Software
|
||||
** Foundation and appearing in the file LICENSE.LGPL included in the
|
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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||||
** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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||||
** General Public License version 3.0 as published by the Free Software
|
||||
** Foundation and appearing in the file LICENSE.GPL included in the
|
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** packaging of this file. Please review the following information to
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||||
** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "evrd3dpresentengine.h"
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#include "mfglobal.h"
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#include <qtgui/qguiapplication.h>
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#include <qpa/qplatformnativeinterface.h>
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#include <qtgui/qopenglcontext.h>
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#include <qabstractvideobuffer.h>
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#include <QAbstractVideoSurface>
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#include <qvideoframe.h>
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#include <QDebug>
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#include <qopenglcontext.h>
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#include <qwindow.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <GLES2/gl2.h>
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#include <d3d9.h>
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#include <dxva2api.h>
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#include <WinUser.h>
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#include <evr.h>
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QT_USE_NAMESPACE
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static const DWORD PRESENTER_BUFFER_COUNT = 3;
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class TextureVideoBuffer : public QAbstractVideoBuffer
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{
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public:
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TextureVideoBuffer(GLuint textureId)
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: QAbstractVideoBuffer(GLTextureHandle)
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, m_textureId(textureId)
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{}
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~TextureVideoBuffer() {}
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MapMode mapMode() const { return NotMapped; }
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uchar *map(MapMode, int*, int*) { return 0; }
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void unmap() {}
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QVariant handle() const
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{
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return QVariant::fromValue<unsigned int>(m_textureId);
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}
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private:
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GLuint m_textureId;
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};
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D3DPresentEngine::D3DPresentEngine()
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: QObject()
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, m_mutex(QMutex::Recursive)
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, m_deviceResetToken(0)
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, m_D3D9(0)
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, m_device(0)
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, m_deviceManager(0)
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, m_surface(0)
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, m_glContext(0)
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, m_offscreenSurface(0)
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, m_eglDisplay(0)
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, m_eglConfig(0)
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, m_eglSurface(0)
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, m_glTexture(0)
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, m_texture(0)
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{
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ZeroMemory(&m_displayMode, sizeof(m_displayMode));
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HRESULT hr = initializeD3D();
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if (SUCCEEDED(hr)) {
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hr = createD3DDevice();
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if (FAILED(hr))
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qWarning("Failed to create D3D device");
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} else {
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qWarning("Failed to initialize D3D");
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}
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}
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D3DPresentEngine::~D3DPresentEngine()
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{
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qt_wmf_safeRelease(&m_texture);
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qt_wmf_safeRelease(&m_device);
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qt_wmf_safeRelease(&m_deviceManager);
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qt_wmf_safeRelease(&m_D3D9);
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if (m_eglSurface) {
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eglReleaseTexImage(m_eglDisplay, m_eglSurface, EGL_BACK_BUFFER);
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eglDestroySurface(m_eglDisplay, m_eglSurface);
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m_eglSurface = NULL;
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}
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if (m_glTexture)
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glDeleteTextures(1, &m_glTexture);
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delete m_glContext;
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delete m_offscreenSurface;
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}
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void D3DPresentEngine::start()
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{
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QMutexLocker locker(&m_mutex);
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if (!m_surfaceFormat.isValid())
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return;
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if (!m_texture)
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createOffscreenTexture();
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if (m_surface && !m_surface->isActive())
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m_surface->start(m_surfaceFormat);
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}
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void D3DPresentEngine::stop()
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{
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QMutexLocker locker(&m_mutex);
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if (m_surface && m_surface->isActive())
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m_surface->stop();
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}
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HRESULT D3DPresentEngine::getService(REFGUID, REFIID riid, void** ppv)
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{
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HRESULT hr = S_OK;
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if (riid == __uuidof(IDirect3DDeviceManager9)) {
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if (m_deviceManager == NULL) {
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hr = MF_E_UNSUPPORTED_SERVICE;
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} else {
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*ppv = m_deviceManager;
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m_deviceManager->AddRef();
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}
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} else {
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hr = MF_E_UNSUPPORTED_SERVICE;
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}
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return hr;
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}
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HRESULT D3DPresentEngine::checkFormat(D3DFORMAT format)
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{
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HRESULT hr = S_OK;
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UINT uAdapter = D3DADAPTER_DEFAULT;
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D3DDEVTYPE type = D3DDEVTYPE_HAL;
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D3DDISPLAYMODE mode;
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D3DDEVICE_CREATION_PARAMETERS params;
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// Our shared D3D/EGL surface only supports RGB32,
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// reject all other formats
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if (format != D3DFMT_X8R8G8B8)
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return MF_E_INVALIDMEDIATYPE;
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if (m_device) {
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hr = m_device->GetCreationParameters(¶ms);
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if (FAILED(hr))
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return hr;
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uAdapter = params.AdapterOrdinal;
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type = params.DeviceType;
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}
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hr = m_D3D9->GetAdapterDisplayMode(uAdapter, &mode);
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if (FAILED(hr))
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return hr;
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return m_D3D9->CheckDeviceType(uAdapter, type, mode.Format, format, TRUE);
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}
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HRESULT D3DPresentEngine::createVideoSamples(IMFMediaType *format, QList<IMFSample*> &videoSampleQueue)
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{
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if (!format)
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return MF_E_UNEXPECTED;
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HRESULT hr = S_OK;
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D3DPRESENT_PARAMETERS pp;
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IDirect3DSwapChain9 *swapChain = NULL;
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IMFSample *videoSample = NULL;
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QMutexLocker locker(&m_mutex);
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releaseResources();
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// Get the swap chain parameters from the media type.
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hr = getSwapChainPresentParameters(format, &pp);
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if (FAILED(hr))
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goto done;
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// Create the video samples.
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for (int i = 0; i < PRESENTER_BUFFER_COUNT; i++) {
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// Create a new swap chain.
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hr = m_device->CreateAdditionalSwapChain(&pp, &swapChain);
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if (FAILED(hr))
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goto done;
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// Create the video sample from the swap chain.
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hr = createD3DSample(swapChain, &videoSample);
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if (FAILED(hr))
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goto done;
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// Add it to the list.
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videoSample->AddRef();
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videoSampleQueue.append(videoSample);
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// Set the swap chain pointer as a custom attribute on the sample. This keeps
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// a reference count on the swap chain, so that the swap chain is kept alive
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// for the duration of the sample's lifetime.
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hr = videoSample->SetUnknown(MFSamplePresenter_SampleSwapChain, swapChain);
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if (FAILED(hr))
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goto done;
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qt_wmf_safeRelease(&videoSample);
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qt_wmf_safeRelease(&swapChain);
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}
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done:
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if (FAILED(hr))
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releaseResources();
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qt_wmf_safeRelease(&swapChain);
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qt_wmf_safeRelease(&videoSample);
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return hr;
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}
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void D3DPresentEngine::releaseResources()
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{
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}
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void D3DPresentEngine::presentSample(void *opaque, qint64)
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{
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HRESULT hr = S_OK;
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IMFSample *sample = reinterpret_cast<IMFSample*>(opaque);
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IMFMediaBuffer* buffer = NULL;
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IDirect3DSurface9* surface = NULL;
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if (sample) {
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// Get the buffer from the sample.
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hr = sample->GetBufferByIndex(0, &buffer);
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if (FAILED(hr))
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goto done;
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// Get the surface from the buffer.
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hr = MFGetService(buffer, MR_BUFFER_SERVICE, IID_PPV_ARGS(&surface));
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if (FAILED(hr))
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goto done;
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}
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if (surface && updateTexture(surface)) {
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m_surface->present(QVideoFrame(new TextureVideoBuffer(m_glTexture),
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m_surfaceFormat.frameSize(),
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m_surfaceFormat.pixelFormat()));
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}
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done:
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qt_wmf_safeRelease(&surface);
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qt_wmf_safeRelease(&buffer);
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qt_wmf_safeRelease(&sample);
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}
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void D3DPresentEngine::setSurface(QAbstractVideoSurface *surface)
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{
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QMutexLocker locker(&m_mutex);
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m_surface = surface;
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}
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void D3DPresentEngine::setSurfaceFormat(const QVideoSurfaceFormat &format)
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{
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QMutexLocker locker(&m_mutex);
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m_surfaceFormat = format;
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}
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void D3DPresentEngine::createOffscreenTexture()
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{
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// First, check if we have a context on this thread
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QOpenGLContext *currentContext = QOpenGLContext::currentContext();
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if (!currentContext) {
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//Create OpenGL context and set share context from surface
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QOpenGLContext *shareContext = qobject_cast<QOpenGLContext*>(m_surface->property("GLContext").value<QObject*>());
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if (!shareContext)
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return;
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m_offscreenSurface = new QWindow;
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m_offscreenSurface->setSurfaceType(QWindow::OpenGLSurface);
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//Needs geometry to be a valid surface, but size is not important
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m_offscreenSurface->setGeometry(-1, -1, 1, 1);
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m_offscreenSurface->create();
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m_glContext = new QOpenGLContext;
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m_glContext->setFormat(m_offscreenSurface->requestedFormat());
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m_glContext->setShareContext(shareContext);
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if (!m_glContext->create()) {
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delete m_glContext;
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delete m_offscreenSurface;
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m_glContext = 0;
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m_offscreenSurface = 0;
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return;
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}
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currentContext = m_glContext;
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}
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if (m_glContext)
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m_glContext->makeCurrent(m_offscreenSurface);
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QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
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m_eglDisplay = static_cast<EGLDisplay*>(
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nativeInterface->nativeResourceForContext("eglDisplay", currentContext));
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m_eglConfig = static_cast<EGLDisplay*>(
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nativeInterface->nativeResourceForContext("eglConfig", currentContext));
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glGenTextures(1, &m_glTexture);
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int w = m_surfaceFormat.frameWidth();
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int h = m_surfaceFormat.frameHeight();
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EGLint attribs[] = {
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EGL_WIDTH, w,
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EGL_HEIGHT, h,
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EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB,
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EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
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EGL_NONE
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};
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EGLSurface pbuffer = eglCreatePbufferSurface(m_eglDisplay, m_eglConfig, attribs);
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|
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HANDLE share_handle = 0;
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PFNEGLQUERYSURFACEPOINTERANGLEPROC eglQuerySurfacePointerANGLE =
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reinterpret_cast<PFNEGLQUERYSURFACEPOINTERANGLEPROC>(eglGetProcAddress("eglQuerySurfacePointerANGLE"));
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eglQuerySurfacePointerANGLE(
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m_eglDisplay,
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pbuffer,
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EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE, &share_handle);
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m_device->CreateTexture(w, h, 1,
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D3DUSAGE_RENDERTARGET,
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D3DFMT_X8R8G8B8,
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D3DPOOL_DEFAULT,
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&m_texture,
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&share_handle);
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|
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m_eglSurface = pbuffer;
|
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|
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if (m_glContext)
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m_glContext->doneCurrent();
|
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}
|
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|
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bool D3DPresentEngine::updateTexture(IDirect3DSurface9 *src)
|
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{
|
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if (!m_texture)
|
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return false;
|
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|
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if (m_glContext)
|
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m_glContext->makeCurrent(m_offscreenSurface);
|
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|
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glBindTexture(GL_TEXTURE_2D, m_glTexture);
|
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|
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IDirect3DSurface9 *dest = NULL;
|
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|
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// Copy the sample surface to the shared D3D/EGL surface
|
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HRESULT hr = m_texture->GetSurfaceLevel(0, &dest);
|
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if (FAILED(hr))
|
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goto done;
|
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|
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hr = m_device->StretchRect(src, NULL, dest, NULL, D3DTEXF_NONE);
|
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if (FAILED(hr))
|
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qWarning("Failed to copy D3D surface");
|
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|
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if (hr == S_OK)
|
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eglBindTexImage(m_eglDisplay, m_eglSurface, EGL_BACK_BUFFER);
|
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|
||||
done:
|
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qt_wmf_safeRelease(&dest);
|
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|
||||
if (m_glContext)
|
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m_glContext->doneCurrent();
|
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|
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return SUCCEEDED(hr);
|
||||
}
|
||||
|
||||
HRESULT D3DPresentEngine::initializeD3D()
|
||||
{
|
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HRESULT hr = Direct3DCreate9Ex(D3D_SDK_VERSION, &m_D3D9);
|
||||
|
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if (SUCCEEDED(hr))
|
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hr = DXVA2CreateDirect3DDeviceManager9(&m_deviceResetToken, &m_deviceManager);
|
||||
|
||||
return hr;
|
||||
}
|
||||
|
||||
HRESULT D3DPresentEngine::createD3DDevice()
|
||||
{
|
||||
HRESULT hr = S_OK;
|
||||
HWND hwnd = NULL;
|
||||
UINT uAdapterID = D3DADAPTER_DEFAULT;
|
||||
DWORD vp = 0;
|
||||
|
||||
D3DCAPS9 ddCaps;
|
||||
ZeroMemory(&ddCaps, sizeof(ddCaps));
|
||||
|
||||
IDirect3DDevice9Ex* device = NULL;
|
||||
|
||||
// Hold the lock because we might be discarding an existing device.
|
||||
QMutexLocker locker(&m_mutex);
|
||||
|
||||
if (!m_D3D9 || !m_deviceManager)
|
||||
return MF_E_NOT_INITIALIZED;
|
||||
|
||||
hwnd = ::GetShellWindow();
|
||||
|
||||
// Note: The presenter creates additional swap chains to present the
|
||||
// video frames. Therefore, it does not use the device's implicit
|
||||
// swap chain, so the size of the back buffer here is 1 x 1.
|
||||
|
||||
D3DPRESENT_PARAMETERS pp;
|
||||
ZeroMemory(&pp, sizeof(pp));
|
||||
|
||||
pp.BackBufferWidth = 1;
|
||||
pp.BackBufferHeight = 1;
|
||||
pp.BackBufferFormat = D3DFMT_UNKNOWN;
|
||||
pp.BackBufferCount = 1;
|
||||
pp.Windowed = TRUE;
|
||||
pp.SwapEffect = D3DSWAPEFFECT_DISCARD;
|
||||
pp.BackBufferFormat = D3DFMT_UNKNOWN;
|
||||
pp.hDeviceWindow = hwnd;
|
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pp.Flags = D3DPRESENTFLAG_VIDEO;
|
||||
pp.PresentationInterval = D3DPRESENT_INTERVAL_DEFAULT;
|
||||
|
||||
hr = m_D3D9->GetDeviceCaps(uAdapterID, D3DDEVTYPE_HAL, &ddCaps);
|
||||
if (FAILED(hr))
|
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goto done;
|
||||
|
||||
if (ddCaps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT)
|
||||
vp = D3DCREATE_HARDWARE_VERTEXPROCESSING;
|
||||
else
|
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vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING;
|
||||
|
||||
hr = m_D3D9->CreateDeviceEx(
|
||||
uAdapterID,
|
||||
D3DDEVTYPE_HAL,
|
||||
pp.hDeviceWindow,
|
||||
vp | D3DCREATE_NOWINDOWCHANGES | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
|
||||
&pp,
|
||||
NULL,
|
||||
&device
|
||||
);
|
||||
if (FAILED(hr))
|
||||
goto done;
|
||||
|
||||
hr = m_D3D9->GetAdapterDisplayMode(uAdapterID, &m_displayMode);
|
||||
if (FAILED(hr))
|
||||
goto done;
|
||||
|
||||
hr = m_deviceManager->ResetDevice(device, m_deviceResetToken);
|
||||
if (FAILED(hr))
|
||||
goto done;
|
||||
|
||||
qt_wmf_safeRelease(&m_device);
|
||||
|
||||
m_device = device;
|
||||
m_device->AddRef();
|
||||
|
||||
done:
|
||||
qt_wmf_safeRelease(&device);
|
||||
return hr;
|
||||
}
|
||||
|
||||
HRESULT D3DPresentEngine::createD3DSample(IDirect3DSwapChain9 *swapChain, IMFSample **videoSample)
|
||||
{
|
||||
D3DCOLOR clrBlack = D3DCOLOR_ARGB(0xFF, 0x00, 0x00, 0x00);
|
||||
|
||||
IDirect3DSurface9* surface = NULL;
|
||||
IMFSample* sample = NULL;
|
||||
|
||||
// Get the back buffer surface.
|
||||
HRESULT hr = swapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &surface);
|
||||
if (FAILED(hr))
|
||||
goto done;
|
||||
|
||||
// Fill it with black.
|
||||
hr = m_device->ColorFill(surface, NULL, clrBlack);
|
||||
if (FAILED(hr))
|
||||
goto done;
|
||||
|
||||
hr = MFCreateVideoSampleFromSurface(surface, &sample);
|
||||
if (FAILED(hr))
|
||||
goto done;
|
||||
|
||||
*videoSample = sample;
|
||||
(*videoSample)->AddRef();
|
||||
|
||||
done:
|
||||
qt_wmf_safeRelease(&surface);
|
||||
qt_wmf_safeRelease(&sample);
|
||||
return hr;
|
||||
}
|
||||
|
||||
HRESULT D3DPresentEngine::getSwapChainPresentParameters(IMFMediaType *type, D3DPRESENT_PARAMETERS* pp)
|
||||
{
|
||||
ZeroMemory(pp, sizeof(D3DPRESENT_PARAMETERS));
|
||||
|
||||
// Get some information about the video format.
|
||||
|
||||
UINT32 width = 0, height = 0;
|
||||
|
||||
HRESULT hr = MFGetAttributeSize(type, MF_MT_FRAME_SIZE, &width, &height);
|
||||
if (FAILED(hr))
|
||||
return hr;
|
||||
|
||||
DWORD d3dFormat = 0;
|
||||
|
||||
hr = qt_wmf_getFourCC(type, &d3dFormat);
|
||||
if (FAILED(hr))
|
||||
return hr;
|
||||
|
||||
ZeroMemory(pp, sizeof(D3DPRESENT_PARAMETERS));
|
||||
pp->BackBufferWidth = width;
|
||||
pp->BackBufferHeight = height;
|
||||
pp->Windowed = TRUE;
|
||||
pp->SwapEffect = D3DSWAPEFFECT_DISCARD;
|
||||
pp->BackBufferFormat = (D3DFORMAT)d3dFormat;
|
||||
pp->hDeviceWindow = ::GetShellWindow();
|
||||
pp->Flags = D3DPRESENTFLAG_VIDEO;
|
||||
pp->PresentationInterval = D3DPRESENT_INTERVAL_DEFAULT;
|
||||
|
||||
D3DDEVICE_CREATION_PARAMETERS params;
|
||||
hr = m_device->GetCreationParameters(¶ms);
|
||||
if (FAILED(hr))
|
||||
return hr;
|
||||
|
||||
if (params.DeviceType != D3DDEVTYPE_HAL)
|
||||
pp->Flags |= D3DPRESENTFLAG_LOCKABLE_BACKBUFFER;
|
||||
|
||||
return S_OK;
|
||||
}
|
||||
Reference in New Issue
Block a user