// Copyright (c) 2006-2009 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:

//

#ifndef __LOOKUPTABLE_H__

#define __LOOKUPTABLE_H__

#include <e32std.h>

/**

@internalTechnology

*/

 IMPORT_C const TUint16* Convert16to32bppLow();

 IMPORT_C const TUint32* Convert16to32bppHigh();

/**

Returns the pointer to the table of 16-bit normalisation table.

The table is currently used for performing un-multiplying Premultiplied Alpha color channels.

Use: Let x be c * a/255, and y = c, then y = (x/a)*255, where a is in 0-255 range.

		To use this table, use y = (x * Table[a])>>8. i.e, the inaccurate division is converted 

		to more accurate multiplication and shift.

@return pointer to the normalisation table.

@internalTechnology

*/

IMPORT_C const TUint16* PtrTo16BitNormalisationTable();

#endif