/*  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/>.

*/

#include <videoplayer2.h>

#include <QtCore/private/qcore_symbian_p.h> // for qt_QRect2TRect

#include "utils.h"

#include "videooutput_surface.h"

#include "videoplayer_surface.h"

QT_BEGIN_NAMESPACE

using namespace Phonon;

using namespace Phonon::MMF;

// Two-phase constructor idiom is used because construct() calls virtual

// functions and therefore cannot be called from the AbstractVideoPlayer

// C++ constructor.

SurfaceVideoPlayer* SurfaceVideoPlayer::create(MediaObject *parent,

                                       const AbstractPlayer *player)

{

    QScopedPointer<SurfaceVideoPlayer> self(new SurfaceVideoPlayer(parent, player));

    self->construct();

    return self.take();

}

SurfaceVideoPlayer::SurfaceVideoPlayer(MediaObject *parent, const AbstractPlayer *player)

    :   AbstractVideoPlayer(parent, player)

    ,   m_displayWindow(0)

{

}

SurfaceVideoPlayer::~SurfaceVideoPlayer()

{

}

//-----------------------------------------------------------------------------

// Public functions

//-----------------------------------------------------------------------------

void MMF::SurfaceVideoPlayer::videoWindowSizeChanged()

{

    if (m_videoOutput)

        updateScaleFactors(m_videoOutput->videoWindowSize());

}

//-----------------------------------------------------------------------------

// Private functions

//-----------------------------------------------------------------------------

void MMF::SurfaceVideoPlayer::createPlayer()

{

    const TInt priority = 0;

    const TMdaPriorityPreference preference = EMdaPriorityPreferenceNone;

    CVideoPlayerUtility2 *player = 0;

    QT_TRAP_THROWING(player = CVideoPlayerUtility2::NewL(*this,

                                         priority, preference));

    m_player.reset(player);

}

void MMF::SurfaceVideoPlayer::initVideoOutput()

{

    Q_ASSERT(m_videoOutput);

    bool connected = connect(

        m_videoOutput, SIGNAL(videoWindowSizeChanged()),

        this, SLOT(videoWindowSizeChanged())

    );

    Q_ASSERT(connected);

    // Suppress warnings in release builds

    Q_UNUSED(connected);

    AbstractVideoPlayer::initVideoOutput();

}

void MMF::SurfaceVideoPlayer::prepareCompleted()

{

    videoWindowSizeChanged();

}

void MMF::SurfaceVideoPlayer::handleVideoWindowChanged()

{

    parametersChanged(WindowHandle);

}

void MMF::SurfaceVideoPlayer::handleParametersChanged(VideoParameters parameters)

{

    TRACE_CONTEXT(SurfaceVideoPlayer::handleParametersChanged, EVideoApi);

    TRACE_ENTRY("parameters 0x%x", parameters.operator int());

    TRect rect;

    if (m_videoOutput) {

        m_videoOutput->dump();

        const QSize size = m_videoOutput->videoWindowSize();

        rect.SetSize(TSize(size.width(), size.height()));

    }

    CVideoPlayerUtility2 *player = static_cast<CVideoPlayerUtility2 *>(m_player.data());

    if (player) {

        int err = KErrNone;

        if (parameters & WindowHandle) {

            removeDisplayWindow();

            addDisplayWindow(rect);

        }

        if (KErrNone == err) {

            if (parameters & ScaleFactors) {

                if (!m_displayWindow)

                    addDisplayWindow(rect);

                Q_ASSERT(m_displayWindow);

                TRAP(err, player->SetVideoExtentL(*m_displayWindow, rect));

                if (KErrNone == err)

                    TRAP(err, player->SetWindowClipRectL(*m_displayWindow, rect));

                if (KErrNone == err)

                    TRAP(err, player->SetScaleFactorL(*m_displayWindow, m_scaleWidth, m_scaleHeight));

                if (KErrNone != err)

                    setError(tr("Video display error"), err);

            }

        }

    }

    TRACE_EXIT_0();

}

void MMF::SurfaceVideoPlayer::addDisplayWindow(const TRect &rect)

{

    TRACE_CONTEXT(SurfaceVideoPlayer::addDisplayWindow, EVideoApi);

    TRACE_ENTRY("rect %d %d - %d %d", rect.iTl.iX, rect.iTl.iY, rect.iBr.iX, rect.iBr.iY);

    Q_ASSERT(!m_displayWindow);

    RWindow *window = static_cast<RWindow *>(m_window);

    TRACE("window 0x%08x", window);

    if (window) {

        window->SetBackgroundColor(TRgb(0, 0, 0, 255));

        CVideoPlayerUtility2 *player = static_cast<CVideoPlayerUtility2 *>(m_player.data());

        Q_ASSERT(player);

        TRAPD(err, player->AddDisplayWindowL(m_wsSession, m_screenDevice, *window, rect, rect));

        if (KErrNone == err)

            m_displayWindow = window;

        else

            setError(tr("Video display error"), err);

	TRACE("err %d", err);

    }

    TRACE_EXIT_0();

}

void MMF::SurfaceVideoPlayer::removeDisplayWindow()

{

    TRACE_CONTEXT(SurfaceVideoPlayer::removeDisplayWindow, EVideoApi);

    TRACE("player 0x%08x window 0x%08x", m_player.data(), m_displayWindow);

    CVideoPlayerUtility2 *player = static_cast<CVideoPlayerUtility2 *>(m_player.data());

    if (player && m_displayWindow) {

        player->RemoveDisplayWindow(*m_displayWindow);

        m_displayWindow = 0;

    }

}

QT_END_NAMESPACE