/*

 * Copyright (c) 2008,2009 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 classes specified in cea861ediddatatypes.h.

 *

 */

#include "cea861ediddatatypes.h"

#include "trace.h"

// ======== LOCAL FUNCTIONS ========

// ======== MEMBER FUNCTIONS ========

//=============================================================================

//CCea861ExtEdidInformation

//=============================================================================

//

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

// CCea861ExtEdidInformation::CCea861ExtEdidInformation

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

//

CCea861ExtEdidInformation::CCea861ExtEdidInformation() :

    iShortVideoDescriptors( NULL ),

    iShortAudioDescriptors( NULL ),

    iVendorSpecificData( NULL ),

    iVideoCapabilityDataBlock( NULL ),

    iDescriptorBlocks( NULL )

    {

    FUNC_LOG;

    }

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

// CCea861ExtEdidInformation::NewL

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

//

EXPORT_C CCea861ExtEdidInformation* CCea861ExtEdidInformation::NewL()

    {

    FUNC_LOG;

    CCea861ExtEdidInformation* self = CCea861ExtEdidInformation::NewLC();

    CleanupStack::Pop( self );

    return self;

    }

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

// CCea861ExtEdidInformation::NewLC

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

//

EXPORT_C CCea861ExtEdidInformation* CCea861ExtEdidInformation::NewLC()

    {

    FUNC_LOG;

    CCea861ExtEdidInformation* self =

        new ( ELeave ) CCea861ExtEdidInformation();

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// CCea861ExtEdidInformation::ConstructL

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

//

void CCea861ExtEdidInformation::ConstructL()

    {

    FUNC_LOG;

    }

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

// CCea861ExtEdidInformation::~CCea861ExtEdidInformation

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

//

CCea861ExtEdidInformation::~CCea861ExtEdidInformation()

    {

    FUNC_LOG;

    // delete all video descriptors

    while( iShortVideoDescriptors )

        {

        // iterate to the end and delete the latest link

        TCEA861VideoDataBlock* last = iShortVideoDescriptors;

        TCEA861VideoDataBlock* prev = iShortVideoDescriptors;

        while( last->iNext )

            {

            prev = last;

            last = last->iNext;

            }

        // now last is pointing to the last link and prev is pointing to the one before the last

        if( prev == last )

            { // if there is only one

            iShortVideoDescriptors = NULL;

            prev = NULL;

            delete last;

            }

        else

            {

            prev->iNext = NULL;

            delete last;

            }

        }

    // delete all audio descriptors

    while( iShortAudioDescriptors )

        {

        // iterate to the end and delete the latest link

        TCEA861AudioDataBlock* last = iShortAudioDescriptors;

        TCEA861AudioDataBlock* prev = iShortAudioDescriptors;

        while( last->iNext )

            {

            prev = last;

            last = last->iNext;

            }

        // now last is pointing to the last link and prev is pointing to the one before the last

        if( prev == last )

            {

            iShortAudioDescriptors = NULL;

            prev = NULL;

            delete last;

            }

        else

            {

            prev->iNext = NULL;

            delete last;

            }

        }

    // delete vendor specific data

    while( iVendorSpecificData )

        {

        // iterate to the end and delete the latest link

        TCEA861VendorSpecificDataBlockPayload* last =

            iVendorSpecificData->iVendorSpecificPayloadStart;

        TCEA861VendorSpecificDataBlockPayload* prev =

            iVendorSpecificData->iVendorSpecificPayloadStart;

        while( last->iNext )

            {

            prev = last;

            last = last->iNext;

            }

        // now last is pointing to the last link and prev is pointing to the one before the last

        if( prev == last ) // if there is only one link left

            {

            prev = NULL;

            iVendorSpecificData->iVendorSpecificPayloadStart = NULL;

            delete last;

            // now we can delete the root as well

            delete iVendorSpecificData;

            iVendorSpecificData = NULL;

            }

        else

            {

            prev->iNext = 0;

            delete last;

            }

        }

    // delete all Video Capability Data Blockss

    while( iVideoCapabilityDataBlock )

        {

        // iterate to the end and delete the latest link

        TCEA861VideoCapabilityDataBlock* last = iVideoCapabilityDataBlock;

        TCEA861VideoCapabilityDataBlock* prev = iVideoCapabilityDataBlock;

        while( last->iNext )

            {

            prev = last;

            last = last->iNext;

            }

        // now last is pointing to the last link and prev is pointing to the one before the last

        if( prev == last )

            {

            iVideoCapabilityDataBlock = NULL;

            prev = NULL;

            delete last;

            }

        else

            {

            prev->iNext = NULL;

            delete last;

            }

        }

    // delete all descriptor blocks

    while( iDescriptorBlocks )

        {

        TCEA861TEdidDescriptorBlockList* prev = iDescriptorBlocks;

        TCEA861TEdidDescriptorBlockList* last = prev;

        /* coverity[var_deref_op]*/

        if( prev->iNext )

            {

            last = prev->iNext;

            }

        while( last->iNext ) // go to last block

            {

            prev = prev->iNext;

            last = last->iNext;

            }

        prev->iNext = NULL;

        if( last == iDescriptorBlocks )

            {

            iDescriptorBlocks = NULL;

            prev = NULL;

            }

        delete last;

        }

    }

// End of file