/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "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:

* Ixonos Plc

*

* Description:  

* YUV to EColor64K colorspace converter concrete classes. 

*

*/

#ifndef     __YUV2RGB16_H__

#define     __YUV2RGB16_H__

//  INCLUDES

#ifndef __YUVCONVERTER_H__

#include "yuvconverter.h"

#endif

//  CLASS DEFINITIONS

class CYuv2Rgb16 : public CYuvConverter

{

public: // CYuvConverter methods

    // Constructors & destructor

    CYuv2Rgb16();

    ~CYuv2Rgb16();

    void ConstructL(TUint aWidth, TUint aHeight, TUint aMaxWidth, TUint aMaxHeight);

    void Convert(const TUint8 *aYBuf, const TUint8 *aUBuf,

                 const TUint8 *aVBuf,

                 TUint aBufWidth, TUint aBufHeight,

                 TUint8 *aTarget, TUint aTargetScanlineLength);

    void SetGamma(TInt /*aGamma*/) {};

protected: // Data

    TUint iWidth, iHeight;

};

// The fixed point constants for YUV -> RGB conversion

const TInt KYMult = 296;

const TInt KCrToR = 408;

const TInt KCbToG =  96;

const TInt KCrToG = 204;

const TInt KCbToB = 520;

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

// UvToRDiff

// Calculate the red color difference from Cr by using fixed point values.

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

//

inline TInt UvToRDiff(

    TInt aCr,

    TInt /*aCb*/)

    {

    return (KCrToR * aCr) / 256;

    }

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

// UvToGDiff

// Calculate the green color difference from Cr and Cb components

// by using fixed point values.

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

//

inline TInt UvToGDiff(

    TInt aCr,

    TInt aCb)

    {

    return (KCbToG * aCb + KCrToG * aCr) / 256;

    }

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

// UvToBDiff

// Calculate the blue color difference from Cb by using fixed point values.

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

//

inline TInt UvToBDiff(

    TInt /*aCr*/,

    TInt aCb)

    {

    return (KCbToB * aCb) / 256;

    }

#endif