/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:   Implementation of video playback display handler

*

*/

// Version : %version:  29 %

#include <sysutil.h>

#include <s32file.h>

#include <mpxcommand.h>

#include <mpxcommandgeneraldefs.h>

#include <mpxplaybackutility.h>

#include <mpxvideoplaybackdefs.h>

#include "videocontainer.h"

#include "mpxvideoviewwrapper.h"

#include "videoplaybackdisplayhandler.h"

#include "mpxvideoregion.h"

#include "videoplaybackviewfiledetails.h"

const TInt KVIDEORESIZINGREPEATRATE = 50000;

const TReal32 KTRANSITIONEFFECTCNT = 8;

_LIT( KAspectRatioFile, "c:\\private\\200159b2\\mpxvideoplayer_aspect_ratio.dat" );

CVideoPlaybackDisplayHandler::CVideoPlaybackDisplayHandler( MMPXPlaybackUtility* aPlayUtil,

                                                            CMPXVideoViewWrapper* aViewWrapper )

    : iPlaybackUtility( aPlayUtil )

    , iTransitionEffectCnt( 0 )

    , iViewWrapper( aViewWrapper )

    , iScaleWidth( 100.0f )

    , iScaleHeight( 100.0f )

    , iHorizontalPosition( EHorizontalAlignCenter )

    , iVerticalPosition( EVerticalAlignCenter )

    , iRotation( EVideoRotationNone )

    , iAutoScale( EAutoScaleBestFit )

{

}

CVideoPlaybackDisplayHandler::~CVideoPlaybackDisplayHandler()

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::~CVideoPlaybackDisplayHandler()"));

    MPX_TRAPD( error, SaveAspectRatioL() );

    if ( iResizingTimer )

    {

        iResizingTimer->Cancel();

        delete iResizingTimer;

        iResizingTimer = NULL;

    }

    iAspectRatioArray.Close();

    if ( iVideoDisplay )

    {

        SurfaceRemoved();

        delete iVideoDisplay;

        iVideoDisplay = NULL;

    }

	if ( iVideoContainer )

    {

        delete iVideoContainer;

        iVideoContainer = NULL;

    }

}

CVideoPlaybackDisplayHandler*

CVideoPlaybackDisplayHandler::NewL( MMPXPlaybackUtility* aPlayUtil,

                                    CMPXVideoViewWrapper* aViewWrapper )

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::NewL()"));

    CVideoPlaybackDisplayHandler* self =

        new(ELeave) CVideoPlaybackDisplayHandler( aPlayUtil, aViewWrapper );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

}

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

//  CVideoPlaybackDisplayHandler::ConstructL()

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

//

void CVideoPlaybackDisplayHandler::ConstructL()

{

    iResizingTimer = CPeriodic::NewL( CActive::EPriorityStandard );

    LoadAspectRatioL();

}

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

//   CVideoPlaybackDisplayHandler::CreateDisplayWindowL()

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

//

void CVideoPlaybackDisplayHandler::CreateDisplayWindowL(

                                          RWsSession& /*aWs*/,

                                          CWsScreenDevice& aScreenDevice,

                                          RWindow& aWin,

                                          TRect aDisplayRect )

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::CreateDisplayWindowL()"));

    if ( ! iVideoContainer )

    {

        iVideoContainer = new ( ELeave ) CVideoContainer();

        iVideoContainer->ConstructL();

        iVideoContainer->SetRect( aDisplayRect );

    }

    RWindowBase *videoWindow = iVideoContainer->DrawableWindow();

    videoWindow->SetOrdinalPosition( -1 );

    (&aWin)->SetOrdinalPosition( 0 );

    MPX_DEBUG(_L("VideoWindow ordinal position is: %d"), videoWindow->OrdinalPosition());

    MPX_DEBUG(_L("UiWindow ordinal position is: %d"), (&aWin)->OrdinalPosition());

    AddDisplayWindowL( aScreenDevice, *videoWindow, (RWindow*)videoWindow );

}

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

//   CVideoPlaybackDisplayHandler::RemoveDisplayWindow()

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

//

void CVideoPlaybackDisplayHandler::RemoveDisplayWindow()

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::RemoveDisplayWindow()"));

    if ( iVideoDisplay )

    {

        SurfaceRemoved();

        delete iVideoDisplay;

        iVideoDisplay = NULL;

    }

    if ( iVideoContainer )

    {

        delete iVideoContainer;

        iVideoContainer = NULL;

    }

    iSurfaceId = TSurfaceId::CreateNullId();

}

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

//   CVideoPlaybackDisplayHandler::HandleVideoDisplayMessageL()

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

//

void CVideoPlaybackDisplayHandler::HandleVideoDisplayMessageL( CMPXMessage* aMessage )

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::HandleVideoDisplayMessage()"));

    TMPXVideoDisplayCommand message =

        ( *(aMessage->Value<TMPXVideoDisplayCommand>(KMPXMediaVideoDisplayCommand)) );

    MPX_DEBUG(

      _L("CVideoPlaybackDisplayHandler::HandleVideoDisplayMessageL() message = %d"), message );

    switch ( message )

    {

        case EPbMsgVideoSurfaceCreated:

        {

            SurfaceCreatedL( aMessage );

            break;

        }

        case EPbMsgVideoSurfaceChanged:

        {

            SurfaceChangedL( aMessage );

            break;

        }

        case EPbMsgVideoSurfaceRemoved:

        {

            SurfaceRemoved();

            break;

        }

    }

}

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

//   CVideoPlaybackDisplayHandler::SetAspectRatioL()

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

//

TInt CVideoPlaybackDisplayHandler::SetAspectRatioL( TMPXVideoPlaybackCommand aCmd )

{

    MPX_DEBUG(_L("CVideoPlaybackDisplayHandler::SetAspectRatioL()"));

    TInt aspectRatio;

    aspectRatio = SetNgaAspectRatioL( aCmd );

    //

    //  Update the aspect ratio in the array

    //

    TInt count = iAspectRatioArray.Count();

    if ( count > 0 && count > iCurrentIndexForAspectRatio )

    {

        iAspectRatioArray[iCurrentIndexForAspectRatio].scalingType = (TMMFScalingType)aspectRatio;

    }

    return aspectRatio;

}

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

//   CVideoPlaybackDisplayHandler::SetDefaultAspectRatioL

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

//

TInt CVideoPlaybackDisplayHandler::SetDefaultAspectRatioL(

        VideoPlaybackViewFileDetails* aFileDetails, TReal32 aDisplayAspectRatio )

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::SetDefaultAspectRatioL()"));

    TInt newAspectRatio = EMMFNatural;

    if ( aFileDetails->mVideoHeight > 0 && aFileDetails->mVideoWidth > 0 )

    {

        TMMFScalingType scalingType = EMMFNatural;

        TReal32 videoAspectRatio = (TReal32)aFileDetails->mVideoWidth /

                                   (TReal32)aFileDetails->mVideoHeight;

        TInt cnt = iAspectRatioArray.Count();

        TInt i = 0;

        //

        //  check whether dat file has the information about (videoRatio + screenRatio)

        //

        for ( ; i < cnt ; i++ )

        {

            if ( iAspectRatioArray[i].videoRatio == videoAspectRatio &&

                 iAspectRatioArray[i].screenRatio == aDisplayAspectRatio &&

                 ( scalingType = iAspectRatioArray[i].scalingType ) > 0 )

            {

                break;

            }

        }

        //

        //  if can't find out match aspect ratio in dat file,

        //  choose the scaling type through the rule

        //      aspectRatioDiff =  videoAspectRatio - aDisplayAspectRatio

        //      aspectRatioDiff ==  0        ==> natural

        //      aspectRatioDiff > 0.1        ==> zoom

        //      aspectRatioDiff < - 0.3      ==> natural

        //      aspectRatioDiff >= - 0.3 and <= 0.1   ==> stretch

        //

        if ( i == cnt )

        {

            if ( videoAspectRatio - aDisplayAspectRatio > 0.1 )

            {

                scalingType = EMMFZoom;

            }

            else if ( ( videoAspectRatio != aDisplayAspectRatio ) &&

                      ( videoAspectRatio - aDisplayAspectRatio > (- 0.3) ) )

            {

                scalingType = EMMFStretch;

            }

            TMPXAspectRatio ratio;

            ratio.videoRatio = videoAspectRatio;

            ratio.screenRatio = aDisplayAspectRatio;

            ratio.scalingType = scalingType;

            iAspectRatioArray.Append( ratio );

        }

        iCurrentIndexForAspectRatio = i;

        TMPXVideoPlaybackCommand aspectRatioCmd = EPbCmdNaturalAspectRatio;

        if ( scalingType == EMMFZoom )

        {

            aspectRatioCmd = EPbCmdZoomAspectRatio;

        }

        else if ( scalingType == EMMFStretch )

        {

            aspectRatioCmd = EPbCmdStretchAspectRatio;

        }

        newAspectRatio = SetAspectRatioL( aspectRatioCmd );

    }

    return newAspectRatio;

}

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

//   CVideoPlaybackDisplayHandler::SaveAspectRatioL

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

//

void CVideoPlaybackDisplayHandler::SaveAspectRatioL()

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::SaveAspectRatioL"));

    RFs fs;

    TInt err = fs.Connect();

    CleanupClosePushL<RFs>( fs );

    TBool canSave = EFalse;

    TRAP_IGNORE( canSave = ! SysUtil::FFSSpaceBelowCriticalLevelL(

                                 &fs, sizeof(TMPXAspectRatio) * iAspectRatioArray.Count()) );

    if ( canSave )

    {

        // save list to disk

        RFileWriteStream out;

        TInt err( out.Replace( fs, KAspectRatioFile, EFileWrite ) );

        if ( err == KErrPathNotFound )

        {

            fs.MkDirAll( KAspectRatioFile );

            err = out.Create( fs, KAspectRatioFile, EFileWrite );

        }

        if ( ! err )

        {

            TInt cnt = iAspectRatioArray.Count();

            MPX_TRAP( err,

            {

                for ( TInt i = 0 ; i < cnt ; i++ )

                {

                    //Save (videoRatio + screenRatio + scalingType)

                    out.WriteReal32L( iAspectRatioArray[i].videoRatio );

                    out.WriteReal32L( iAspectRatioArray[i].screenRatio );

                    out.WriteInt8L( iAspectRatioArray[i].scalingType );

                }

            } );

            out.Close();

        }

    }

    CleanupStack::PopAndDestroy();

}

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

//   CVideoPlaybackDisplayHandler::LoadAspectRatioL

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

//

void CVideoPlaybackDisplayHandler::LoadAspectRatioL()

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::LoadAspectRatioL()"));

    RFs fs;

    RFileReadStream in;

    TInt err = fs.Connect();

    CleanupClosePushL<RFs>( fs );

    if ( ! err && in.Open( fs, KAspectRatioFile, EFileRead ) == KErrNone )

    {

        TMPXAspectRatio ratio;

        MPX_TRAP( err,

        {

            for ( err = KErrNone ; err == KErrNone ; )

            {

                //

                //  Read (videoRatio + screenRatio + scalingType)

                //

                ratio.videoRatio = in.ReadReal32L();

                ratio.screenRatio = in.ReadReal32L();

                ratio.scalingType = (TMMFScalingType)in.ReadInt8L();

                iAspectRatioArray.Append( ratio );

            }

        } );

        in.Close();

    }

    CleanupStack::PopAndDestroy();

}

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

//   CVideoPlaybackDisplayHandler::UpdateVideoRectL()

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

//

void CVideoPlaybackDisplayHandler::UpdateVideoRectL( TRect aClipRect, TBool transitionEffect )

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::UpdateVideoRectL()"));

    if ( transitionEffect )

    {

        iTlXDiff = (TReal32)( iWindowRect.iTl.iX - aClipRect.iTl.iX ) / KTRANSITIONEFFECTCNT;

        iTlYDiff = (TReal32)( iWindowRect.iTl.iY - aClipRect.iTl.iY ) / KTRANSITIONEFFECTCNT;

        iBrXDiff = (TReal32)( iWindowRect.iBr.iX - aClipRect.iBr.iX ) / KTRANSITIONEFFECTCNT;

        iBrYDiff = (TReal32)( iWindowRect.iBr.iY - aClipRect.iBr.iY ) / KTRANSITIONEFFECTCNT;

        if ( iResizingTimer->IsActive() )

        {

            iResizingTimer->Cancel();

        }

        iResizingTimer->Start(

                0,

                KVIDEORESIZINGREPEATRATE,

                TCallBack( CVideoPlaybackDisplayHandler::UpdateVideoRectTimeOutL, this ) );

    }

    else

    {

        SetVideoRectL( aClipRect );

        iWindowRect = aClipRect;

        iViewWrapper->UpdateVideoRectDone();

    }

}

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

//   CVideoPlaybackDisplayHandler::UpdateVideoRectTimeOutL()

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

//

TInt CVideoPlaybackDisplayHandler::UpdateVideoRectTimeOutL( TAny* aPtr )

{

    MPX_DEBUG(_L("CVideoPlaybackDisplayHandler::UpdateVideoRectTimeOutL()"));

    static_cast<CVideoPlaybackDisplayHandler*>(aPtr)->CalculateVideoRectL();

    return KErrNone;

}

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

//   CVideoPlaybackDisplayHandler::CalculateVideoRectL()

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

//

void CVideoPlaybackDisplayHandler::CalculateVideoRectL()

{

    iTransitionEffectCnt++;

    TRect windowRect( (TInt)( (TReal32)iWindowRect.iTl.iX - iTlXDiff * (TReal32)iTransitionEffectCnt ),

                      (TInt)( (TReal32)iWindowRect.iTl.iY - iTlYDiff * (TReal32)iTransitionEffectCnt ),

                      (TInt)( (TReal32)iWindowRect.iBr.iX - iBrXDiff * (TReal32)iTransitionEffectCnt ),

                      (TInt)( (TReal32)iWindowRect.iBr.iY - iBrYDiff * (TReal32)iTransitionEffectCnt ) );

    MPX_DEBUG(_L("CVideoPlaybackDisplayHandler::CalculateVideoRectL() %d %d %d %d"),

            windowRect.iTl.iX, windowRect.iTl.iY, windowRect.iBr.iX, windowRect.iBr.iY );

    SetVideoRectL( windowRect );

    if ( iTransitionEffectCnt >= KTRANSITIONEFFECTCNT )

    {

        iTransitionEffectCnt = 0;

        iWindowRect = windowRect;

        if ( iResizingTimer->IsActive() )

        {

            iResizingTimer->Cancel();

        }

        MPX_DEBUG(_L("CVideoPlaybackDisplayHandler::CalculateVideoRectL() Done"));

        iViewWrapper->UpdateVideoRectDone();

    }

}

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

//   CVideoPlaybackDisplayHandler::SetVideoRectL()

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

//

void CVideoPlaybackDisplayHandler::SetVideoRectL( TRect aRect )

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::SetVideoRectL()"));

    if ( iVideoDisplay )

    {

        iVideoDisplay->SetVideoExtentL( *iWindowBase, aRect, TRect( iWindowBase->Size() ) );

    }

}

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

//   CVideoPlaybackDisplayHandler::AddDisplayWindowL()

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

//

void CVideoPlaybackDisplayHandler::AddDisplayWindowL( CWsScreenDevice& aScreenDevice,

                                                         RWindowBase& aWindowBase,

                                                         RWindow* aWin )

{

    MPX_ENTER_EXIT(_L("CVideoPlaybackDisplayHandler::AddDisplayWindowL()"));

    iWindowBase = &aWindowBase;

    TInt displayId = aScreenDevice.GetScreenNumber();

    MPX_DEBUG(_L("CVideoPlaybackDisplayHandler::AddDisplayWindowL() displayId %d"), displayId);

    CMediaClientVideoDisplay* tempDisplay = iVideoDisplay;

    iVideoDisplay = CMediaClientVideoDisplay::NewL( displayId );

    delete tempDisplay;

    TRect cropRect = TRect( aWin->Size() );

    //

    // If RWindow is still in potrait, rotate surface to play a video in landscape

    //

    if ( cropRect.Width() < cropRect.Height() )

    {

        iRotation = EVideoRotationClockwise90;

    }

    iWindowRect = cropRect;

    MPX_DEBUG(_L("CVideoPlaybackDisplayHandler::AddDisplayWindowL() cropRect (%d, %d), (%d, %d)"),

        cropRect.iTl.iX, cropRect.iTl.iY, cropRect.iBr.iX, cropRect.iBr.iY);