e489e7b5b1
Qt Windows Runtime camera uses DirectVideo to convert NV12 format texture to BGRA format texture. As the EGL Node can draw using NV12 already, allow video render control to choose which path to take. By default use DirectVideo. Bypass can be used as fallback when DirectVideo cannot be used or is not working. Task-Id: QTBUG-48331 Change-Id: I0cb87a7c4523bfb60610e6b41ab3fb05aff092a1 Reviewed-by: Andrew Knight <andrew.knight@intopalo.com>
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies).
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL3$
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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
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/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
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPLv3 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 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl.html.
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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 2.0 or later as published by the Free
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** Software Foundation and appearing in the file LICENSE.GPL included in
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** the packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 2.0 requirements will be
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** met: http://www.gnu.org/licenses/gpl-2.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QWINRTABSTRACTVIDEORENDERERCONTROL_H
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#define QWINRTABSTRACTVIDEORENDERERCONTROL_H
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#include <QtMultimedia/QVideoRendererControl>
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#include <QtMultimedia/QVideoSurfaceFormat>
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#include <qt_windows.h>
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struct ID3D11Device;
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struct ID3D11Texture2D;
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QT_BEGIN_NAMESPACE
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class QWinRTAbstractVideoRendererControlPrivate;
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class QWinRTAbstractVideoRendererControl : public QVideoRendererControl
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{
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Q_OBJECT
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public:
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explicit QWinRTAbstractVideoRendererControl(const QSize &size, QObject *parent = 0);
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~QWinRTAbstractVideoRendererControl();
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enum BlitMode {
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DirectVideo,
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MediaFoundation
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};
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QAbstractVideoSurface *surface() const Q_DECL_OVERRIDE;
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void setSurface(QAbstractVideoSurface *surface) Q_DECL_OVERRIDE;
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QSize size() const;
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void setSize(const QSize &size);
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void setScanLineDirection(QVideoSurfaceFormat::Direction direction);
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void setActive(bool active);
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BlitMode blitMode() const;
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void setBlitMode(BlitMode mode);
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virtual bool render(ID3D11Texture2D *texture) = 0;
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virtual bool dequeueFrame(QVideoFrame *frame);
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static ID3D11Device *d3dDevice();
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protected:
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void shutdown();
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private slots:
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void syncAndRender();
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private:
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void textureToFrame();
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Q_INVOKABLE void present();
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QScopedPointer<QWinRTAbstractVideoRendererControlPrivate> d_ptr;
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Q_DECLARE_PRIVATE(QWinRTAbstractVideoRendererControl)
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};
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class CriticalSectionLocker
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{
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public:
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CriticalSectionLocker(CRITICAL_SECTION *section)
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: m_section(section)
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{
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EnterCriticalSection(m_section);
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}
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~CriticalSectionLocker()
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{
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LeaveCriticalSection(m_section);
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}
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private:
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CRITICAL_SECTION *m_section;
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};
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QT_END_NAMESPACE
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#endif // QWINRTABSTRACTVIDEORENDERERCONTROL_H
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