/*

* Copyright (c) 2003, 2004 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:  JP2KCodeBlock class used to collect the codeblock

*                related information such as compressed data and data length.

*

*/

// INCLUDE FILES

#include "JP2KCodeBlock.h"

#include "JP2KUtils.h"

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES  

// CONSTANTS

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

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

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

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

// CJ2kCodeBlock::CJ2kCodeBlock

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CJ2kCodeBlock::CJ2kCodeBlock() : 

    iLastPass(-1), 

    iLengthBits(3)

    {

    }

// Destructor

CJ2kCodeBlock::~CJ2kCodeBlock()

    {

    delete iDataSize;

    iDataSize = 0;

    delete iPassesPerSegment;

    iPassesPerSegment = 0;

    delete iNumSegment;

    iNumSegment = 0;

    delete iData;

    iData = 0;

    }

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

// CJ2kCodeBlock::SetCodeBlockCanvas

// Set the canvas of the code block.

// (other items were commented in a header).

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

//

void CJ2kCodeBlock::SetCodeBlockCanvas( TInt32 aX, TInt32 aY, TInt32 aWidth, TInt32 aHeight )

    {

    iCodeBlockCanvas.iTl = TPoint( aX, aY );

    iCodeBlockCanvas.SetWidth( aWidth );

    iCodeBlockCanvas.SetHeight( aHeight );

    }

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

// CJ2kCodeBlock::InitializeL

// Initialize the number of segment.

// (other items were commented in a header).

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

//

void CJ2kCodeBlock::InitializeL( TUint16 aLayer )

    {

    iNumSegment = HBufC16::NewMaxL( aLayer );

    iNumSegment->Des().FillZ();

    }

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

// CJ2kCodeBlock::DataL

// Get the data buffer descriptor.

// (other items were commented in a header).

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

//

HBufC8* CJ2kCodeBlock::DataL()

    {

    if ( iData )

        {

        if ( iData->Des().MaxLength() < (TInt)iDataLength )

            {

            iData = iData->ReAllocL( iDataLength );

            }

        }

    else

        {

        iData = HBufC8::NewL( iDataLength );

        }

    return iData;

    }

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

// CJ2kCodeBlock::Data

// Get the pointer to the data portion.

// (other items were commented in a header).

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

//

const TUint8* CJ2kCodeBlock::Data() const

    {

    if ( iData )

        {

        return iData->Ptr();

        }

    return 0;

    }