1 /*

     2 * Copyright (c) 2006 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:   _Defines_H 

    15 *		Defines the parameter values used in the IMAAMI algorithms.

    16 *

    17 */

    18 

    19 

    20 

    21 

    22 #ifndef _Defines_H

    23 #define _Defines_H

    24 

    25 #define EXPO_SHIFT			13			// Accuracy in exponent table

    26 #define EXPO_MULTI			(1 << EXPO_SHIFT)	// Multiplier for exponent

    27 #define EXPO_SIZE			(3 * EXPO_MULTI)	// Size of exponent table

    28 #define EXPO_ACCU			12			// Accuracy of weight value

    29 #define EXPO_MULT			(1 << EXPO_ACCU)

    30 #define EXPO_DIFF			(2 * SHIFT_PLACE - EXPO_SHIFT)

    31 

    32 #define SHIFT_COEFF			(16)	// Accuracy of float to integer (coeff)

    33 #define SHIFT_PLACE			( 8)	// Accuracy of float to integer (place)

    34 #define SHIFT_DIFF			( 8)	// Accuracy reduction		(SHIFT_COEFF - SHIFT_PLACE)

    35 

    36 #define EXPO_SIZE2			(384)	// Size of exponent table	((3 * (1 << EXPO_SHIFT2)) >> 1)

    37 #define EXPO_DIFF2			(  8)	// Reduction of accuracy	(SHIFT_COEFF - EXPO_SHIFT2)

    38 

    39 

    40 #endif // ifndef _Defines_H

    41 //----IMAAMI----