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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: Juha Kauppinen, Mika Hokkanen |
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13 * |
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14 * Description: Photo Browser |
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15 * |
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16 */ |
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17 |
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18 //------------------------------ |
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19 #ifndef FIXED_MATH_H_ |
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20 #define FIXED_MATH_H_ |
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21 //------------------------------ |
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22 |
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23 // INCLUDES |
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24 #include <e32base.h> |
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25 #include <e32std.h> |
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26 #include <e32math.h> |
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27 #include <GLES/gl.h> |
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28 |
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29 // FUNCTIONS |
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30 |
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31 inline GLfixed IntToFixed (GLint aValue) |
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32 { return aValue << 16; } |
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33 |
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34 |
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35 inline GLfixed FloatToFixed (GLfloat aValue) |
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36 { return (GLfixed) (aValue * 65536.0f); } |
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37 |
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38 |
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39 inline GLint FixedToInt (GLfixed aValue) |
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40 { return aValue >> 16; } |
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41 |
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42 |
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43 inline GLfloat FixedToFloat (GLfixed aValue) |
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44 { return (GLfloat) (aValue * (1 / 65536.0f)); } |
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45 |
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46 |
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47 inline GLfixed MultiplyFixed (GLfixed op1, GLfixed op2) |
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48 { |
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49 TInt64 r = (TInt64)op1 * (TInt64)op2; |
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50 return (GLfixed) (r >> 16); |
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51 } |
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52 |
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53 |
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54 //------------------------------ |
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55 #endif |