/*

* Copyright (c) 2008 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

*

*/

#include <sysutil.h>

#include <s32file.h>

#include <mpxcommand.h>

#include <mpxcommandgeneraldefs.h>

#include <mpxplaybackutility.h>

#include "mpxvideoplaybackdisplayhandler.h"

#include "mpxvideoregion.h"

#include "mpxvideoplaybackviewfiledetails.h"

#include <mpxvideoplaybackdefs.h>

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

CMPXVideoPlaybackDisplayHandler::CMPXVideoPlaybackDisplayHandler( MMPXPlaybackUtility* aPlayUtil )

    : iPlaybackUtility( aPlayUtil )

#ifdef SYMBIAN_BUILD_GCE

    , iScaleWidth( 100.0f )

    , iScaleHeight( 100.0f )

    , iHorizontalPosition( EHorizontalAlignCenter )

    , iVerticalPosition( EVerticalAlignCenter )

    , iRotation( EVideoRotationNone )

    , iAutoScale( EAutoScaleBestFit )

#endif

{

}

CMPXVideoPlaybackDisplayHandler::~CMPXVideoPlaybackDisplayHandler()

{

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

    MPX_TRAPD( error, SaveAspectRatioL() );

    iAspectRatioArray.Close();

#ifdef SYMBIAN_BUILD_GCE

    if ( iVideoDisplay )

    {

        delete iVideoDisplay;

        iVideoDisplay = NULL;

    }

#endif

}

CMPXVideoPlaybackDisplayHandler*

CMPXVideoPlaybackDisplayHandler::NewL( MMPXPlaybackUtility* aPlayUtil )

{

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

    CMPXVideoPlaybackDisplayHandler* self =

        new(ELeave) CMPXVideoPlaybackDisplayHandler( aPlayUtil );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

}

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

//  CMPXVideoPlaybackDisplayHandler::ConstructL()

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

//

void CMPXVideoPlaybackDisplayHandler::ConstructL()

{

    LoadAspectRatioL();

}

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

//   CMPXVideoPlaybackDisplayHandler::CreateDisplayWindowL()

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

//

void CMPXVideoPlaybackDisplayHandler::CreateDisplayWindowL(

                                          CWsScreenDevice& aScreenDevice,

                                          RWindow& aWin )

{

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

#ifdef SYMBIAN_BUILD_GCE

    AddDisplayWindowL( aScreenDevice, aWin, &aWin );

#endif

}

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

//   CMPXVideoPlaybackDisplayHandler::RemoveDisplayWindow()

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

//

void CMPXVideoPlaybackDisplayHandler::RemoveDisplayWindow()

{

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

#ifdef SYMBIAN_BUILD_GCE

    if ( iVideoDisplay )

    {

        delete iVideoDisplay;

        iVideoDisplay = NULL;

    }

#endif

}

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

//   CMPXVideoPlaybackDisplayHandler::HandleVideoDisplayMessageL()

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

//

TMPXVideoDisplayCommand

CMPXVideoPlaybackDisplayHandler::HandleVideoDisplayMessageL( CMPXMessage* aMessage )

{

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

    TMPXVideoDisplayCommand message =

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

    MPX_DEBUG(

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

    switch ( message )

    {

#ifdef SYMBIAN_BUILD_GCE

        case EPbMsgVideoSurfaceCreated:

        {

            SurfaceCreatedL( aMessage );

            break;

        }

        case EPbMsgVideoSurfaceChanged:

        {

            SurfaceChangedL( aMessage );

            break;

        }

        case EPbMsgVideoSurfaceRemoved:

        {

            SurfaceRemoved();

            break;

        }

#endif

    }

    return message;

}

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

//   CMPXVideoPlaybackDisplayHandler::SetAspectRatioL()

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

//

TInt CMPXVideoPlaybackDisplayHandler::SetAspectRatioL( TMPXVideoPlaybackCommand aCmd )

{

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

    TInt aspectRatio;

#ifdef SYMBIAN_BUILD_GCE

    aspectRatio = SetNgaAspectRatioL( aCmd );

#endif

    //

    //  Update the aspect ratio in the array

    //

    TInt count = iAspectRatioArray.Count();

    if ( count > 0 && count > iCurrentIndexForAspectRatio )

    {

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

    }

    return aspectRatio;

}

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

//   CMPXVideoPlaybackDisplayHandler::SetDefaultAspectRatioL

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

//

TInt CMPXVideoPlaybackDisplayHandler::SetDefaultAspectRatioL(

                                          CMPXVideoPlaybackViewFileDetails* aFileDetails,

                                          TReal aDisplayAspectRatio )

{

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

    TInt newAspectRatio = EMMFNatural;

    if ( aFileDetails->iVideoHeight > 0 && aFileDetails->iVideoWidth > 0 )

    {

        TMMFScalingType scalingType = EMMFNatural;

        TReal32 videoAspectRatio = (TReal32)aFileDetails->iVideoWidth /

                                   (TReal32)aFileDetails->iVideoHeight;

        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

        //      videoAspectRatio - aDisplayAspectRatio > 0.1 ==> zoom

        //      videoAspectRatio - aDisplayAspectRatio < 0.1 ==> stretch

        //      videoAspectRatio = aDisplayAspectRatio ==> natural

        //

        if ( i == cnt )

        {

            if ( videoAspectRatio - aDisplayAspectRatio > 0.1 )

            {

                scalingType = EMMFZoom;

            }

            else if ( videoAspectRatio != aDisplayAspectRatio )

            {

                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;

}

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

//   CMPXVideoPlaybackDisplayHandler::SaveAspectRatioL

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

//

void CMPXVideoPlaybackDisplayHandler::SaveAspectRatioL()

{

    MPX_ENTER_EXIT(_L("CMPXVideoPlaybackDisplayHandler::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();

}

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

//   CMPXVideoPlaybackDisplayHandler::LoadAspectRatioL

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

//

void CMPXVideoPlaybackDisplayHandler::LoadAspectRatioL()

{

    MPX_ENTER_EXIT(_L("CMPXVideoPlaybackDisplayHandler::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();

}

#ifdef SYMBIAN_BUILD_GCE

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

//   CMPXVideoPlaybackDisplayHandler::AddDisplayWindowL()

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

//

void CMPXVideoPlaybackDisplayHandler::AddDisplayWindowL( CWsScreenDevice& aScreenDevice,

                                                         RWindowBase& aWindowBase,

                                                         RWindow* aWin )

{

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

    TInt displayId = aScreenDevice.GetScreenNumber();

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

    CMediaClientVideoDisplay* tempDisplay = iVideoDisplay;

    iVideoDisplay = CMediaClientVideoDisplay::NewL( displayId );

    delete tempDisplay;

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

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

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

    MPX_TRAPD( dispError,

        iVideoDisplay->AddDisplayWindowL( &aWindowBase,

                                          cropRect,

                                          cropRect,

                                          cropRect,

                                          iScaleWidth,

                                          iScaleHeight,

                                          iRotation,

                                          iAutoScale,

                                          iHorizontalPosition,

                                          iVerticalPosition,

                                          aWin );

    );

    MPX_DEBUG(_L("CMPXVideoPlaybackDisplayHandler::AddDisplayWindowL() Display Added"));

    //

    //  Check if surface was created before window was ready

    //

    if ( iSurfaceCached )

    {

        iVideoDisplay->SurfaceCreated( iSurfaceId, iCropRect, iAspectRatio, iCropRect );

        iSurfaceCached = EFalse;

    }

}

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

//   CMPXVideoPlaybackDisplayHandler::SurfaceCreatedL()

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

//

void CMPXVideoPlaybackDisplayHandler::SurfaceCreatedL( CMPXMessage* aMessage )

{

    MPX_ENTER_EXIT(_L("CMPXVideoPlaybackDisplayHandler::SurfaceCreatedL()"));

    TSurfaceId oldSurfaceId = iSurfaceId;

    //

    //  Extract the surface parameters from the message

    //

    iSurfaceId = aMessage->ValueTObjectL<TSurfaceId>( KMPXMediaVideoDisplayTSurfaceId );

    iCropRect = aMessage->ValueTObjectL<TRect>( KMPXMediaVideoDisplayCropRect );

    iAspectRatio = aMessage->ValueTObjectL<TVideoAspectRatio>( KMPXMediaVideoDisplayAspectRatio );

    if ( iVideoDisplay )

    {

        //

        //  Remove old surface if one exists

        //

        if ( ! oldSurfaceId.IsNull() )

        {

            iVideoDisplay->RemoveSurface();

        }

        //

        //  Add new surface

        //

        iVideoDisplay->SurfaceCreated( iSurfaceId, iCropRect, iAspectRatio, iCropRect );

    }

    else

    {

        //

        //  Video display has not been created yet, save surface information to create

        //  the surface when the display is created

        //

        iSurfaceCached = ETrue;

    }

}

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

//   CMPXVideoPlaybackDisplayHandler::SurfaceChangedL()

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

//

void CMPXVideoPlaybackDisplayHandler::SurfaceChangedL( CMPXMessage* aMessage )

{

    MPX_ENTER_EXIT(_L("CMPXVideoPlaybackDisplayHandler::SurfaceChangedL()"));

    //

    //  Extract the surface parameters from the message

    //

    iSurfaceId = aMessage->ValueTObjectL<TSurfaceId>( KMPXMediaVideoDisplayTSurfaceId );

    iCropRect = aMessage->ValueTObjectL<TRect>( KMPXMediaVideoDisplayCropRect );

    iAspectRatio = aMessage->ValueTObjectL<TVideoAspectRatio>( KMPXMediaVideoDisplayAspectRatio );

    if ( iVideoDisplay )

    {

        //

        //  Add new surface

        //

        iVideoDisplay->SurfaceParametersChanged( iSurfaceId, iCropRect, iAspectRatio );

        iVideoDisplay->RedrawWindows( iCropRect );