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Diffstat (limited to 'src/3rdparty/phonon/mmf/videooutput_dsa.h')
-rw-r--r-- | src/3rdparty/phonon/mmf/videooutput_dsa.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/mmf/videooutput_dsa.h b/src/3rdparty/phonon/mmf/videooutput_dsa.h new file mode 100644 index 0000000..c37dad8 --- /dev/null +++ b/src/3rdparty/phonon/mmf/videooutput_dsa.h @@ -0,0 +1,109 @@ +/* This file is part of the KDE project. + +Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). + +This library is free software: you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation, either version 2.1 or 3 of the License. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with this library. If not, see <http://www.gnu.org/licenses/>. + +*/ + +#ifndef PHONON_MMF_VIDEOOUTPUT_DSA_H +#define PHONON_MMF_VIDEOOUTPUT_DSA_H + +#include <QRect> + +#include "phonon/mmf/abstractvideooutput.h" + +QT_BEGIN_NAMESPACE + +class QResizeEvent; +class QMoveEvent; + +namespace Phonon +{ +namespace MMF +{ +class AncestorMoveMonitor; + +/** + * @short Widget on which video is displayed by DSA rendering + * + * This implementation is used on devices with the legacy graphics + * subsystem, which does not support surfaces. On such devices, + * video rendering is done via Direct Screen Access (DSA), whereby + * the video decoder writes directly to the framebuffer. To ensure + * that the window server and video decoder do not try to draw to + * the same screen region at the same time, the video subsystem + * first requests permission to perform DSA. If the window server + * needs to draw to this screen region (for example to display a + * message dialog), it first notifies the video subsystem that it + * must stop rendering to this region. + * + * @see SurfaceVideoOutput + */ +class DsaVideoOutput + : public AbstractVideoOutput +{ + Q_OBJECT + +public: + DsaVideoOutput(QWidget *parent); + ~DsaVideoOutput(); + + void setAncestorMoveMonitor(AncestorMoveMonitor *monitor); + + // Get absolute screen rectangle for video window + const QRect& videoWindowScreenRect() const; + + // Called by AncestorMoveMonitor + void ancestorMoved(); + +public Q_SLOTS: + // Callbacks received from Symbian QtGui implementation, when it + // begins / ends blitting the video widget's backing store to the + // window server. + void beginNativePaintEvent(const QRect & /*controlRect*/); + void endNativePaintEvent(const QRect & /*controlRect*/); + +Q_SIGNALS: + void videoWindowScreenRectChanged(); + + // Emitted when the Symbian QtGui implementation begins / ends + // blitting the video widget's backing store to the window server. + void beginVideoWindowNativePaint(); + void endVideoWindowNativePaint(); + +private: + void getVideoWindowScreenRect(); + void registerForAncestorMoved(); + + // QWidget + void resizeEvent(QResizeEvent *event); + void moveEvent(QMoveEvent *event); + bool event(QEvent *event); + +private: + // Not owned + AncestorMoveMonitor* m_ancestorMoveMonitor; + + // Absolute screen rectangle on which video is displayed + QRect m_videoWindowScreenRect; + +}; + +} +} + +QT_END_NAMESPACE + +#endif // !PHONON_MMF_VIDEOOUTPUT_DSA_H + |