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: Juha Kauppinen, Mika Hokkanen

    13 * 

    14 * Description: Photo Browser

    15 *

    16 */

    17 

    18 //------------------------------

    19 #ifndef FIXED_MATH_H_

    20 #define FIXED_MATH_H_

    21 //------------------------------

    22  

    23 // INCLUDES

    24 #include <e32base.h>

    25 #include <e32std.h>

    26 #include <e32math.h>

    27 #include <GLES/gl.h>   

    28  

    29 // FUNCTIONS

    30  

    31 inline GLfixed IntToFixed (GLint aValue)

    32 { return aValue << 16; }

    33  

    34  

    35 inline GLfixed FloatToFixed (GLfloat aValue)

    36 { return (GLfixed) (aValue * 65536.0f); }

    37  

    38  

    39 inline GLint FixedToInt (GLfixed aValue)

    40 { return aValue >> 16; }

    41  

    42  

    43 inline GLfloat FixedToFloat (GLfixed aValue)

    44 { return (GLfloat) (aValue * (1 / 65536.0f)); }

    45  

    46  

    47 inline GLfixed MultiplyFixed (GLfixed op1, GLfixed op2) 

    48 {

    49   TInt64 r = (TInt64)op1 * (TInt64)op2;

    50   return (GLfixed) (r >> 16);

    51 }

    52  

    53  

    54 //------------------------------

    55 #endif