1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 #include <e32std.h>

    18 

    19 class GfxMath

    20 {

    21 private:

    22 

    23 class TGfxInt64

    24 {

    25 public:

    26 	TInt32	l;									/* low part			*/

    27 	TInt32 h;									/* high part		*/

    28 } ;

    29 

    30 public:

    31 	static TInt svgScalarSin( TInt r1 );

    32 	static TInt svgScalarCos( TInt r1 );

    33 	static TInt svgScalarTan( TInt r1 );

    34 private:

    35 	static TInt32 hgAbs32( TInt32 x );

    36 	static TUint32 hgMulu64h (TUint32 a, TUint32 b);

    37 	static TGfxInt64 hgMulu64 (TUint32 a, TUint32 b);

    38 	static TGfxInt64 hgMul64 (TInt32 a, TInt32 b);

    39 	static TGfxInt64 hgMadd64 (TGfxInt64 a, TInt32 b, TInt32 c);

    40 	static TGfxInt64 hgSet64(TInt32 hh,TInt32 ll);

    41 	static TInt32 hgLsl64h_0_31 (const TGfxInt64	a, TInt32	sh);

    42 	static TInt svgiRCos( TInt32 _x );

    43 	static TGfxInt64 hgAdd64 (const TGfxInt64 a, const TGfxInt64 b);

    44 	static TInt32 hgMul64h (TInt32 a, TInt32 b);

    45 	static TInt32 hgGet64h (const GfxMath::TGfxInt64 a);

    46 };// class GfxMath