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+/* 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_VIDEOPLAYER_DSA_H
+#define PHONON_MMF_VIDEOPLAYER_DSA_H
+
+#include "abstractvideoplayer.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace MMF
+{
+
+/**
+ * @short Wrapper over the MMF video player utility (DSA version)
+ *
+ * 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 SurfaceVideoPlayer
+ */
+class DsaVideoPlayer
+ : public AbstractVideoPlayer
+{
+ Q_OBJECT
+
+public:
+ // Factory function
+ static DsaVideoPlayer* create(MediaObject *parent = 0,
+ const AbstractPlayer *player = 0);
+ ~DsaVideoPlayer();
+
+public Q_SLOTS:
+ void videoWindowScreenRectChanged();
+ void suspendDirectScreenAccess();
+ void resumeDirectScreenAccess();
+
+private:
+ DsaVideoPlayer(MediaObject *parent, const AbstractPlayer *player);
+
+ // AbstractVideoPlayer
+ void createPlayer();
+ void initVideoOutput();
+ void prepareCompleted();
+ void handleVideoWindowChanged();
+ void handleParametersChanged(VideoParameters parameters);
+
+ void startDirectScreenAccess();
+ bool stopDirectScreenAccess();
+
+private:
+ bool m_dsaActive;
+ bool m_dsaWasActive;
+
+ // Absolute screen rectangle on which video is displayed
+ TRect m_videoScreenRect;
+
+};
+
+}
+}
+
+QT_END_NAMESPACE
+
+#endif // !PHONON_MMF_VIDEOPLAYER_DSA_H
+
+