/*

* Copyright (c) 2006 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:  Remote video handler.

*

*/

// INCLUDE FILES

#include "CVtEngDrawDSA.h"

#include "CVtEngEventManager.h"

#include "VtEngPanic.h"

#include "MVtEngFrameObserver.h"

#include "CVtEngSettings.h"

#include "VtEngUtils.h"

#include <videotelephonyvariant.hrh>

#include <tdisplaysinkparamsdsa.h>

#include <cvtlogger.h>

// LOCAL CONSTANTS

// Default display mode.

const TDisplayMode KVtEngDefaultDisplayMode( EColor64K );

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

// CVtEngDrawDSA::NewL

// Symbian 2nd phase constructor can leave.

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

//

CVtEngDrawDSA* CVtEngDrawDSA::NewL(

    MDisplaySinkObserver* aObserver )

    {

    CVtEngDrawDSA* self = new ( ELeave ) CVtEngDrawDSA( aObserver );

    CleanupStack::PushL( self );

    self->ConstructL( );

    CleanupStack::Pop();

    return self;

    }

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

// CVtEngDrawDSA::~CVtEngDrawDSA

// Destructor. Cannot leave.

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

//

CVtEngDrawDSA::~CVtEngDrawDSA()

    {

    __VTPRINTENTER( "RVD(DSA).~" )

    Cancel();

    delete iBitmap1;

    delete iBitmap2;

    if ( iImageScaler )

        {

        iImageScaler->Release();

        }

    __VTPRINTEXIT( "RVD(DSA).~" )

    }

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

// CVtEngDrawDSA::CVtEngDrawDSA

// C++ constructor. Cannot leave.

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

//

CVtEngDrawDSA::CVtEngDrawDSA( MDisplaySinkObserver* aObserver ) :

    CVtEngDraw( aObserver ), iBitmapSetAvail( ETrue )

    {

    }

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

// CVtEngDrawDSA::BaseConstructL

// Base construction.

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

//

void CVtEngDrawDSA::BaseConstructL( )

    {

    __VTPRINTENTER( "RVD(DSA).BaseConstructL" )

    TSize vtEngRemoteVideoDefaultSize( KVtEngRemoteVideoDefaultWidth,

        KVtEngRemoteVideoDefaultHeight );

    iBitmap1 = new ( ELeave ) CFbsBitmap();

    User::LeaveIfError( iBitmap1->Create(

        vtEngRemoteVideoDefaultSize, KVtEngDefaultDisplayMode ) );

    iBitmap2 = new ( ELeave ) CFbsBitmap();

    User::LeaveIfError( iBitmap2->Create(

        vtEngRemoteVideoDefaultSize, KVtEngDefaultDisplayMode ) );

    iImageScaler = VtEngScalerFactory::CreateScalerL( *this );

    __VTPRINT2( DEBUG_MEDIA | DEBUG_CONSTRUCT,

        "RVD.ConL scaler ok %d", iImageScaler != NULL )

    __VTPRINTEXIT( "RVD(DSA).BaseConstructL" )

    }

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

// CVtEngDrawDSA::CreateSinkL

// Instantiates display sink.

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

//

MDisplaySink* CVtEngDrawDSA::CreateSinkL()

    {

    __VTPRINTENTER( "RVD(DSA).CreateSinkL" )

    TDisplaySinkParamsDSA params;

    GetSinkParams( params );

    MDisplaySink* sink = ::CreateSinkL( params, KNullDesC8 );

    __VTPRINTEXITR( "RVD(DSA).CreateSinkL flags=%d", params.iFlags )

    return sink;

    }

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

// CVtEngDrawDSA::BaseDoCancel

// DoCancel for derived class.

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

//

void CVtEngDrawDSA::BaseDoCancel()

    {

    __VTPRINTENTER( "RVD(DSA).BaseDoCancel" )

    __VTPRINTEXIT( "RVD(DSA).BaseDoCancel" )

    }

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

// CVtEngDrawDSA::BaseVerifyConfigL

// Checks current configuration against DSA implementation.

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

//

void CVtEngDrawDSA::BaseVerifyConfigL()

    {

    __VTPRINTENTER( "RVD(DSA).BaseVerifyConfigL" )

    __VTPRINTEXIT( "RVD(DSA).BaseVerifyConfigL" )

    }

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

// CVtEngDrawDSA::BaseRestartL

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

//

void CVtEngDrawDSA::BaseRestartL()

    {

    __VTPRINTENTER( "RVD(DSA).BaseRestartL" )

    __VTPRINTEXIT( "RVD(DSA).BaseRestartL" )

    }

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

// CVtEngDrawDSA::BaseAbortNow

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

//

void CVtEngDrawDSA::BaseAbortNow()

    {

    __VTPRINTENTER( "RVD(DSA).BaseAbortNow" )

    __VTPRINTEXIT( "RVD(DSA).BaseAbortNow" )

    }

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

// CVtEngDrawDSA::BaseStartDrawL

// Starts the drawing.

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

//

void CVtEngDrawDSA::BaseStartDrawL()

    {

    __VTPRINTENTER( "RVD(DSA).BaseStartDrawL" )

    if ( iDSA )

        {

        SetFlag( EReadyInternal );

        if ( !IsActive() )

            {

            Activate();

            iDisplaySink->SetBitmapAvailable( MDisplaySink::EFirstBitmap );

            __VTPRINT( DEBUG_MEDIA | DEBUG_DETAIL,

                "RVD(DSA).BaseStartDrawL bmp avail done" )

            iWatcher->Start( KVtEngWatcherTimeout, KVtEngWatcherTimeout,

                iCallback );

            }

        SetFlag( ERemoteVideoDrawing );

        }

    else

        {

        User::Leave( KErrNotReady );

        }

    __VTPRINTEXIT( "RVD(DSA).BaseStartDrawL" )

    }

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

// CVtEngDrawDSA::BaseStopDraw

// Stop the drawing.

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

//

void CVtEngDrawDSA::BaseStopDraw()

    {

    // Cancel the timer in any case.

    __VTPRINTENTER( "RVD(DSA).BaseStopDraw" )

    iWatcher->Cancel();

    if ( iDSA )

        {

        ClearFlag( ERemoteVideoDrawing | EStarted );

        iDSA->Cancel();

        }

    // Stop also scaling

    if ( iImageScaler )

        {

        iImageScaler->Cancel();

        }

    Cancel();

    __VTPRINTEXIT( "RVD(DSA).BaseStopDraw" )

    }

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

// CVtEngDrawDSA::BaseSetConfigL

// Sets new configuration.

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

//

void CVtEngDrawDSA::BaseSetConfigL( const TVtEngRenderConfig& aConfig )

    {

    __VTPRINTENTER( "RVD(DSA).BaseSetConfigL" )

    Mem::FillZ( &iConfig, sizeof( TVtEngRenderConfigDSA ) );

    iConfig = aConfig;

    ConfigUpdatedL();

    __VTPRINTEXIT( "RVD(DSA).BaseSetConfigL" )

    }

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

// CVtEngDrawDSA::BaseSetUIForegroundL

// Sets UI foreground status.

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

//

void CVtEngDrawDSA::BaseSetUIForegroundL( TBool aForeground )

    {

    __VTPRINTENTER( "RVD(DSA).BaseSetUIForegroundL" )

    if ( aForeground )

        {

        TBool wasSentToBackground( IsFlag( ESentToBackground ) );

        SetFlag( EFlagUIForeground );

        ClearFlag( ESentToBackground );

        if ( wasSentToBackground )

            {

            BaseRefreshBitmapsL();

            Restart( RDirectScreenAccess::ETerminateCancel );

            BaseStartDrawL();

            }

        }

    else

        {

        BaseStopDraw();

        ClearFlag( EFlagUIForeground );

        SetFlag( ESentToBackground );

        }

    __VTPRINTEXIT( "RVD(DSA).BaseSetUIForegroundL" )

    }

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

// CVtEngDrawDSA::BaseVideoFrameSizeChangedL

// Called when incoming frame buffer size changes.

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

//

void CVtEngDrawDSA::BaseVideoFrameSizeChangedL( const TSize& /*aTo*/ )

    {

    __VTPRINTENTER( "RVD(DSA).BaseVideoFrameSizeChangedL" )

    __VTPRINTEXIT( "RVD(DSA).BaseVideoFrameSizeChangedL" )

    }

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

// CVtEngDrawDSA::BaseRequestLastFrame

// Request update last remote video frame through MVtEngFrameObserver::vtSetFrame

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

//

void CVtEngDrawDSA::BaseRequestLastFrame()

    {

    __VTPRINTENTER( "RVD(DSA).BaseRequestLastFrame" )

    __VTPRINTEXIT( "RVD(DSA).BaseRequestLastFrame" )    

    }

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

// CVtEngDrawDSA::Config

// Returns current configuration.

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

//

TVtEngRenderConfig& CVtEngDrawDSA::Config()

    {

    return iConfig;

    }

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

// CVtEngDrawDSA::RunL

// CActive heir execution method.

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

//

void CVtEngDrawDSA::RunL()

    {

    __VTPRINTENTER( "RVD(DSA).RunL" )

    __VTPRINT2( DEBUG_MEDIA, "  bmpNo=%d", iBitmapNo )

    iBitmapNo = iStatus.Int() == 0 ?

        MDisplaySink::ESecondBitmap :

        MDisplaySink::EFirstBitmap ;

    iBitmapSetAvail = EFalse;

    TBool dropFrame( EFalse );

    if ( !iDSUpdated )

        {

        __VTPRINT( DEBUG_MEDIA, "RVD(DSA).RunL !Updated" )

        dropFrame = ETrue;

        }

    else if ( !IsFlag( EFlagUIForeground ) )

        {

        __VTPRINT( DEBUG_MEDIA, "RVD(DSA).RunL !Flag( EFlagUIForeground )" )

        dropFrame = ETrue;

        }

    if ( dropFrame )

        {

        iBitmapSetAvail = ETrue;

        Activate();

        iDisplaySink->SetBitmapAvailable( iBitmapNo );

        __VTPRINTEXIT( "RVD(DSA).RunL" )

        return;

        }

    // Image received, reset counter.

    iCheckpoint = KVtEngWatcherThreshold;

    __VTPRINT2( DEBUG_MEDIA, "RVD(DSA).RunL iStatus=%d", iStatus.Int() )

    if ( iStatus >= KErrNone )

        {

        __VTPRINT2( DEBUG_MEDIA, "RVD(DSA).RunL flags=%d", iFlags )

        TBool firstFrame( !IsFlag ( EFirstFrameReceived ) );

        SetFlag( EFirstFrameReceived );

        // Remote video is about to start?

        if ( !IsFlag( EStarted ) && IsFlag( EReadyInternal ) )

            {

            SetFlag( EStarted );

            iDSA->StartL();

            if ( !iConfig.iClipRect.IsEmpty() )

                {

                SetFlag( EReadyForeground );

                iDSA->Gc()->SetClippingRect( iConfig.iClipRect );

                }

            __VTPRINT( DEBUG_MEDIA, "RVD(DSA).RunL notify rvd start" )

            //CVtEngEventManager::NotifyEvent( KVtEngRemoteVideoStarted );

            }

        if ( firstFrame )

            {

            CVtEngEventManager::NotifyEvent( KVtEngRemoteVideoStarted );

            }

        if ( IsFlag( EStarted ) )

            {

            __VTPRINT( DEBUG_MEDIA, "RVD(DSA).RunL refresh" )

            BaseRefreshL();

            }

        }

    else

        {

        __VTPRINT( DEBUG_MEDIA, "RVD.RunL notify rvd problem" )

        CVtEngEventManager::NotifyEvent( KVtEngRemoteRenderingProblem );

        __VTPRINTEXIT( "RVD(DSA).RunL" )

        return;

        }

    __VTPRINT( DEBUG_MEDIA, "RVD.RunL setting active" )

    Activate();

    // Set bitmap only if not to be scaled

    if( !iImageScaler )

        {

        if ( !iBitmapSetAvail )

            {

            iDisplaySink->SetBitmapAvailable( iBitmapNo );

            iBitmapSetAvail = ETrue;

            }

        __VTPRINT( DEBUG_MEDIA, "RVD(DSA).ScalingCompleted set bmp available" )

        }

    __VTPRINTEXIT( "RVD(DSA).RunL" )

    }

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

// CVtEngDrawDSA::ScalingCompleted

// Callback to receive scaled images.

// Draws received image.

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

//

void CVtEngDrawDSA::ScalingCompleted(

    CFbsBitmap* aBitmap,

    TInt aError )

    {

    __VTPRINTENTER( "RVD(DSA).ScalingCompleted" )

    __VTPRINT2( DEBUG_MEDIA, "RVD(DSA).ScalingReady %d", aError )

    __VTPRINT2( DEBUG_MEDIA, "RVD(DSA).ScalingReady image %d", aBitmap ? 1 : 0 )

    if ( aError == KErrNone &&

         aBitmap != NULL )

        {

        DrawBitmap( *aBitmap );

        if ( !iBitmapSetAvail )

            {

            // Set bitmap available if not already set

            __VTPRINT( DEBUG_MEDIA, "RVD(DSA).ScalingCompleted set bmp available" )

            Activate();

            iDisplaySink->SetBitmapAvailable( iBitmapNo );

            iBitmapSetAvail = ETrue;

            }

        __VTPRINT( DEBUG_MEDIA, "RVD(DSA).ScalingCompleted available?" )

        }

    else if ( aError != KErrCancel )

        {

        // Notification of failed scaling.

        CVtEngEventManager::NotifyEvent( KVtEngRemoteRenderingProblem );

        __VTPRINT( DEBUG_MEDIA, "RVD(DSA).ScalingReady problems" )

        }

    __VTPRINTEXITR( "RVD(DSA).ScalingCompleted err=%d", aError )

    }

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

// CVtEngDrawDSA::BaseRefreshL

// If using scaler, start the scaling otherwise draw a bitmap.

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

//

void CVtEngDrawDSA::BaseRefreshL()

    {

    __VTPRINTENTER( "RVD(DSA).BaseRefreshL" )

    if ( iConfig.iWindow )

        {

        if ( IsFlag( EReady ) && IsFlag( EFirstFrameReceived ) &&

                IsFlag( EFlagUIForeground ) )

            {

            CFbsBitmap* current = iBitmapNo != 0 ? iBitmap1 : iBitmap2;

            if ( current )

                {

                if ( iImageScaler )

                    {

                    __VTPRINT( DEBUG_MEDIA | DEBUG_DETAIL,

                        "RVD(DSA).BaseRefreshL scaling" )

                    TInt index = 0;

                    if ( current == iBitmap2 )

                        {

                        index = 1;

                        }

                    iImageScaler->Cancel();

                    iImageScaler->ScaleL( index );

                    }

                else

                    {

                    DrawBitmap( *current );

                    }

                }

            }

        }

    __VTPRINTEXIT( "RVD(DSA).BaseRefreshL" )

    }

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

// CVtEngDrawDSA::BaseRefreshBitmapsL

// Refreshes bitmaps sizes and display mode if needed.

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

//

void CVtEngDrawDSA::BaseRefreshBitmapsL()

    {

    __VTPRINTENTER( "RVD(DSA).BaseRefreshBitmapsL" )

    const TDisplayMode currentMode( iConfig.iWsSreenDevice->DisplayMode() );

    TBool refreshDisplayMode = EFalse;

    TSize newSize( KVtEngRemoteVideoDefaultWidth,

        KVtEngRemoteVideoDefaultHeight );

    // Use new size if supplied

    if ( iSourceSize.iHeight > 0 && iSourceSize.iWidth > 0 )

        {

        newSize = iSourceSize;

        iSourceSize.iHeight = 0;

        iSourceSize.iWidth = 0;

        }

    __VTPRINT( DEBUG_MEDIA , "================== RVD.RFBM ==================" )

    __VTPRINT2( DEBUG_MEDIA , "    newSize.iWidth: %d", newSize.iWidth)

    __VTPRINT2( DEBUG_MEDIA , "    newSize.iHeight: %d ", newSize.iHeight )

    __VTPRINT( DEBUG_MEDIA , "================== RVD.RFBM ==================" )

    TBool refreshSize = EFalse;

    if ( iBitmap1 )

        {

        refreshDisplayMode = ( iBitmap1->DisplayMode() != currentMode );

        refreshSize = ( newSize != iBitmap1->SizeInPixels() );

        }

    // Delete and create the bitmaps

    if ( refreshDisplayMode || refreshSize || !iBitmap1 || !iBitmap2 )

        {

        __VTPRINT( DEBUG_MEDIA | DEBUG_DETAIL,

            "RVD(DSA).BaseRefreshBitmapsL bmp create" )

        if ( iImageScaler )

            {

            iImageScaler->Cancel();

            }

        iConfig.iObserver->vtSetFrame(

            MVtEngFrameObserver::ERemoteVideoFrame, 0 );

        delete iBitmap1;

        iBitmap1 = NULL;

        delete iBitmap2;

        iBitmap2 = NULL;

        iBitmap1 = new ( ELeave ) CFbsBitmap();

        User::LeaveIfError( iBitmap1->Create(

            newSize, currentMode ) );

        iBitmap2 = new ( ELeave ) CFbsBitmap();

        User::LeaveIfError( iBitmap2->Create(

            newSize, currentMode ) );

        ClearFlag( EFirstFrameReceived );

        }

    // set the params for DS

    TDisplaySinkParamsDSA params;

    GetSinkParams( params );

     // Update the scaler

    if ( iImageScaler )

        {

        // Try to configure first, if returns true

        // configure again

        __VTPRINT( DEBUG_MEDIA | DEBUG_DETAIL,

            "RVD(DSA).BaseRefreshBitmapsL cnfg" )