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/*
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Graphics Extension Library header file
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*
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*/
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#ifndef GFXFIXPT_H
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#define GFXFIXPT_H
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#include <VG/openvg.h>
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// Enumeration
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//#define SVG_FLOAT_BUILD
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enum TGfxTextAnchor
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{
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EGfxTextAnchorStart,
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EGfxTextAnchorMiddle,
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EGfxTextAnchorEnd,
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EGfxTextAnchorNone = -1
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};
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enum TGfxTextDecoration
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{
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EGfxTextDecorationReserved,
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EGfxTextDecorationUnderLine,
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EGfxTextDecorationOverLine,
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EGfxTextDecorationLineThrough,
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EGfxTextDecorationNone = -1
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};
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enum TGfxCapType
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{
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EGfxCapButt = 0,
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EGfxCapRound = 1,
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EGfxCapSquare = 2
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};
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enum TGfxFilterEdgeCondition
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{
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EGfxEdgeNoOp,
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EGfxEdgeZeroFill,
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EGfxEdgeMirror
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};
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// Image interporation enumeration
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enum TGfxImageInterpolation
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{
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EGfxInterpolationBiLinear,
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EGfxInterpolationBiCubic,
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EGfxInterpolationNearestNeighbor
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};
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// Join type enumeration
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enum TGfxJoinType
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{
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EGfxJoinMiter = 0,
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EGfxJoinRound = 1,
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EGfxJoinBevel = 2
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};
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enum TGfxWindingRule
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{
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EGfxWindEvenOdd,
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EGfxWindNonZero
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};
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enum TGfxSegType
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{
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EGfxSegMoveTo=VG_MOVE_TO_ABS,
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EGfxSegLineTo=VG_LINE_TO_ABS,
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EGfxSegQuadTo=VG_QUAD_TO_ABS,
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EGfxSegCubicTo=VG_CUBIC_TO_ABS,
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EGfxSegClose=VG_CLOSE_PATH
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};
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#ifdef SVG_FLOAT_BUILD
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typedef float SVGReal;
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class TFloatFixPt
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{
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public:
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static void GetString( float aFloat, TDes& aBuf );
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static float ConvertString( const TDesC& aVal );
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static TInt ConvertString( const TDesC& aString, float& aValue );
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static TInt ConvertString( const TDesC& aString, TFloatFixPt& aValue );
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static float Sqrt( float aValue );
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static float Cos(float angle);
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static float SinFloatDouble(float angle);
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static float CosFloatDouble(float angle);
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static float CosineDouble(float x);
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static float TanFloatDouble(float angle);
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static float SinApprox(float angle);
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static float CosApprox(float angle);
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static float FastSin( const float val );
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static float FastCos( const float val );
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static float FastTan( const float val );
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static float FastASin( const float val );
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static float FastACos( const float val );
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static float FastATan( const float val );
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inline TFloatFixPt();
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inline TFloatFixPt( TInt aVal );
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inline TFloatFixPt( TInt32 aVal );
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inline TFloatFixPt( TReal32 aVal );
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inline TFloatFixPt( const TFloatFixPt& aFixpt );
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inline operator TInt32() const;
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inline operator TInt() const;
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inline operator TReal32() const;
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inline TFloatFixPt& operator=( TInt32 aVal );
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inline TFloatFixPt& operator=( TInt aVal );
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inline TFloatFixPt& operator=( TReal32 aVal );
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inline TFloatFixPt& operator+=( const TFloatFixPt& aVal );
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inline TFloatFixPt& operator-=( const TFloatFixPt& aVal );
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inline TFloatFixPt& operator*=( const TFloatFixPt& aVal );
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inline TFloatFixPt& operator/=( const TFloatFixPt& aVal );
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inline TFloatFixPt operator+( const TFloatFixPt& aVal ) const;
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inline TFloatFixPt operator+( const double& aVal ) const;
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inline TFloatFixPt operator+( const float& aVal ) const;
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inline TFloatFixPt operator-( const TFloatFixPt& aVal ) const;
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inline TFloatFixPt operator-( const double aVal ) const;
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inline TFloatFixPt operator-( const float aVal ) const;
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inline TFloatFixPt operator*( const TFloatFixPt& aVal ) const;
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inline TFloatFixPt operator*( const double aVal ) const;
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inline TFloatFixPt operator*( const float aVal ) const;
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inline TFloatFixPt operator/( const TFloatFixPt& aVal ) const;
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inline TFloatFixPt operator/( const double aVal ) const;
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inline TFloatFixPt operator/( const float aVal ) const;
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inline TInt operator==( const TFloatFixPt& aVal ) const;
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inline TInt operator!=( const TFloatFixPt& aVal ) const;
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inline TInt operator>=( const TFloatFixPt& aVal ) const;
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inline TInt operator<=( const TFloatFixPt& aVal ) const;
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inline TInt operator>( const TFloatFixPt& aVal ) const;
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inline TInt operator<( const TFloatFixPt& aVal ) const;
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/**
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* Return the number rounded to the next whole number.
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*
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* @since 1.0
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* @return
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*/
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inline TInt32 Round();
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/**
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* Return the 32-bit data for this TFixPt.
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*
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* @since 1.0
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* @return 32-bit value
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*/
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inline TInt32 RawData();
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/**
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* Return the absolute value for the given number.
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*
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* @since 1.0
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* @param aValue : real number to find absolute value
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* @return absolute value
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*/
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TFloatFixPt Abs( TFloatFixPt& aValue );
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/**
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* Return the square root value for this number.
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*
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* @since 1.0
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* @param aValue : real number to find square root
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* @return square root value
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*/
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static TFloatFixPt Sqrt( TFloatFixPt aValue );
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public:
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float iValue; // Must be the first data member of this class!
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};
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#include "GfxFloatFixPt.inl"
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#else /*FIXED POINT BUILD*/
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typedef int SVGReal;
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const TInt32 KFixPtFrac = 16;
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const TInt32 KFixPtFracVal = ( 1 << KFixPtFrac );
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/**
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* Implementation of a real number using 16.16 bits.
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*
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* @lib Gfx2D.lib
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* @since 1.0
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*/
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class TFloatFixPt
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{
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public:
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/**
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* Construct a TFixPt. The default value is 0.0.
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*
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* @since 1.0
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* @return
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*/
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inline TFloatFixPt();
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/**
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* Construct a TFixPt from the given integer value.
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*
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* @since 1.0
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* @param aVal : integer value
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* @return
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*/
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inline TFloatFixPt( TInt aVal );
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/**
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* Construct a TFixPt from the given integer value.
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*
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* @since 1.0
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* @param aVal : integer value
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* @return
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*/
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inline TFloatFixPt( TInt32 aVal );
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/**
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* Construct a TFixPt from the given real 32-bit int.
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*
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* @since 1.0
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* @param aVal : integer value
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* @param aBool : not used.
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* @return
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*/
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inline TFloatFixPt( TInt aVal, TBool aBool );
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/**
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* Construct a TFixPt from the given TReal32.
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*
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* @since 1.0
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* @param aVal : value to copy from
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* @return
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*/
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inline TFloatFixPt( TReal32 aVal );
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/**
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* Construct a TFixPt from the given TFixPt.
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*
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* @since 1.0
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* @param aFixpt : value to copy from
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* @return
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*/
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inline TFloatFixPt( const TFloatFixPt& aFixpt );
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/**
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* Return the fractional portion as an int representation.
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*
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* @since 1.0
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* @return the fractional portion value
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*/
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inline TInt32 FracAsInt();
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/**
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* Casting operator to TInt32.
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*
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* @since 1.0
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* @return
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*/
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inline operator TInt32() const;
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/**
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* Casting operator to TInt.
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*
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* @since 1.0
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* @return
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*/
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inline operator TInt() const;
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/**
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* Casting operator to TReal32.
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*
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* @since 1.0
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* @return
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*/
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inline operator TReal32() const;
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/**
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* Assignment operator.
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*
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* @since 1.0
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* @param aVal : value to assign from.
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* @return
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*/
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inline TFloatFixPt& operator=( TInt32 aVal );
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/**
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* Assignment operator.
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*
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* @since 1.0
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* @param aVal : value to assign from.
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* @return
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*/
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inline TFloatFixPt& operator=( TInt aVal );
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/**
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* Assignment operator.
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*
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* @since 1.0
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* @param aVal : value to assign from.
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* @return
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*/
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inline TFloatFixPt& operator=( TReal32 aVal );
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/**
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* Addition assignment operator.
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*
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* @since 1.0
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* @param aVal : value to add with.
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* @return
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*/
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inline TFloatFixPt& operator+=( const TFloatFixPt& aVal );
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/**
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* Subtraction assignment operator.
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*
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* @since 1.0
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* @param aVal : value to substract.
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* @return
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*/
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inline TFloatFixPt& operator-=( const TFloatFixPt& aVal );
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/**
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* Multiplication assignment operator.
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*
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* @since 1.0
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* @param aVal : value to multiply with.
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* @return
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*/
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inline TFloatFixPt& operator*=( const TFloatFixPt& aVal );
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/**
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* Division assignment operator.
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*
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* @since 1.0
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* @param aVal : value to divide with.
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* @return
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*/
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inline TFloatFixPt& operator/=( const TFloatFixPt& aVal );
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/**
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* Addition operator.
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*
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* @since 1.0
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414 |
* @param aVal : value to add with.
|
|
|
415 |
* @return
|
|
|
416 |
*/
|
|
|
417 |
inline TFloatFixPt operator+( const TFloatFixPt& aVal ) const;
|
|
|
418 |
|
|
|
419 |
/**
|
|
|
420 |
* Subtraction operator.
|
|
|
421 |
*
|
|
|
422 |
* @since 1.0
|
|
|
423 |
* @param aVal : value to subtract.
|
|
|
424 |
* @return
|
|
|
425 |
*/
|
|
|
426 |
inline TFloatFixPt operator-( const TFloatFixPt& aVal ) const;
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|
|
427 |
|
|
|
428 |
/**
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|
|
429 |
* Multiplication operator.
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|
|
430 |
*
|
|
|
431 |
* @since 1.0
|
|
|
432 |
* @param aVal : value to multiply with.
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|
|
433 |
* @return
|
|
|
434 |
*/
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|
435 |
|
|
|
436 |
inline TFloatFixPt operator*( const TFloatFixPt& aVal ) const;
|
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|
437 |
|
|
|
438 |
/**
|
|
|
439 |
* Division operator.
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|
|
440 |
*
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|
|
441 |
* @since 1.0
|
|
|
442 |
* @param aVal : value to divide with.
|
|
|
443 |
* @return
|
|
|
444 |
*/
|
|
|
445 |
inline TFloatFixPt operator/( const TFloatFixPt& aVal ) const;
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|
|
446 |
|
|
|
447 |
/**
|
|
|
448 |
* Equal operator.
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|
449 |
*
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|
|
450 |
* @since 1.0
|
|
|
451 |
* @param aVal : value to compare.
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|
|
452 |
* @return non-zero if equal
|
|
|
453 |
*/
|
|
|
454 |
|
|
|
455 |
inline TInt operator==( const TFloatFixPt& aVal ) const;
|
|
|
456 |
|
|
|
457 |
/**
|
|
|
458 |
* Not Equals operator.
|
|
|
459 |
*
|
|
|
460 |
* @since 1.0
|
|
|
461 |
* @param aVal : value to compare.
|
|
|
462 |
* @return non-zero if not equal
|
|
|
463 |
*/
|
|
|
464 |
inline TInt operator!=( const TFloatFixPt& aVal ) const;
|
|
|
465 |
|
|
|
466 |
/**
|
|
|
467 |
* Greater than or equal to operator.
|
|
|
468 |
*
|
|
|
469 |
* @since 1.0
|
|
|
470 |
* @param aVal : value to compare.
|
|
|
471 |
* @return non-zero if greater than or equal to
|
|
|
472 |
*/
|
|
|
473 |
inline TInt operator>=( const TFloatFixPt& aVal ) const;
|
|
|
474 |
|
|
|
475 |
/**
|
|
|
476 |
* Less than or equal to operator.
|
|
|
477 |
*
|
|
|
478 |
* @since 1.0
|
|
|
479 |
* @param aVal : value to compare.
|
|
|
480 |
* @return non-zero if less than or equal to
|
|
|
481 |
*/
|
|
|
482 |
inline TInt operator<=( const TFloatFixPt& aVal ) const;
|
|
|
483 |
|
|
|
484 |
/**
|
|
|
485 |
* Greater than operator.
|
|
|
486 |
*
|
|
|
487 |
* @since 1.0
|
|
|
488 |
* @param aVal : value to compare.
|
|
|
489 |
* @return non-zero if greater than
|
|
|
490 |
*/
|
|
|
491 |
inline TInt operator>( const TFloatFixPt& aVal ) const;
|
|
|
492 |
|
|
|
493 |
/**
|
|
|
494 |
* Less than operator.
|
|
|
495 |
*
|
|
|
496 |
* @since 1.0
|
|
|
497 |
* @param aVal : value to compare.
|
|
|
498 |
* @return non-zero if less than
|
|
|
499 |
*/
|
|
|
500 |
inline TInt operator<( const TFloatFixPt& aVal ) const;
|
|
|
501 |
|
|
|
502 |
/**
|
|
|
503 |
* Operator to left shift
|
|
|
504 |
*
|
|
|
505 |
* @since 1.0
|
|
|
506 |
* @param aN : bits to be shifted.
|
|
|
507 |
* @return
|
|
|
508 |
*/
|
|
|
509 |
|
|
|
510 |
inline TFloatFixPt operator<<( const TInt aN ) const;
|
|
|
511 |
|
|
|
512 |
/**
|
|
|
513 |
* operator to right shift.
|
|
|
514 |
*
|
|
|
515 |
* @since 1.0
|
|
|
516 |
* @param aBuf : string output storage.
|
|
|
517 |
* @return value obtained after shifeting
|
|
|
518 |
*/
|
|
|
519 |
|
|
|
520 |
inline TFloatFixPt operator>>( const TInt aN ) const;
|
|
|
521 |
|
|
|
522 |
|
|
|
523 |
|
|
|
524 |
/**
|
|
|
525 |
* Get the string representation of this real number.
|
|
|
526 |
*
|
|
|
527 |
* @since 1.0
|
|
|
528 |
* @param aN : bits to be shifted
|
|
|
529 |
* @return value obtained after shifeting
|
|
|
530 |
*/
|
|
|
531 |
void GetString( TDes& aBuf ) const;
|
|
|
532 |
|
|
|
533 |
/**
|
|
|
534 |
* Parse the given string for a TFixPt.
|
|
|
535 |
*
|
|
|
536 |
* @since 1.0
|
|
|
537 |
* @param aVal : string containing a real number.
|
|
|
538 |
* @return TFixPt equal to string representation.
|
|
|
539 |
*/
|
|
|
540 |
static TFloatFixPt ConvertString( const TDesC& aVal );
|
|
|
541 |
|
|
|
542 |
/**
|
|
|
543 |
* Parse the given string for a TFixPt.
|
|
|
544 |
*
|
|
|
545 |
* @since 1.0
|
|
|
546 |
* @param aVal : string containing a real number.
|
|
|
547 |
* @param aVal : parsed number.
|
|
|
548 |
* @return Error code (KErrNone if no errors).
|
|
|
549 |
*/
|
|
|
550 |
static TInt ConvertString( const TDesC& aValueString, TFloatFixPt& aValue );
|
|
|
551 |
|
|
|
552 |
/**
|
|
|
553 |
* Return the number rounded to the next whole number.
|
|
|
554 |
*
|
|
|
555 |
* @since 1.0
|
|
|
556 |
* @return
|
|
|
557 |
*/
|
|
|
558 |
inline TInt32 Round();
|
|
|
559 |
|
|
|
560 |
/**
|
|
|
561 |
* Return the 32-bit data for this TFixPt.
|
|
|
562 |
*
|
|
|
563 |
* @since 1.0
|
|
|
564 |
* @return 32-bit value
|
|
|
565 |
*/
|
|
|
566 |
inline TInt32 RawData();
|
|
|
567 |
|
|
|
568 |
/**
|
|
|
569 |
* Return the absolute value for the given number.
|
|
|
570 |
*
|
|
|
571 |
* @since 1.0
|
|
|
572 |
* @param aValue : real number to find absolute value
|
|
|
573 |
* @return absolute value
|
|
|
574 |
*/
|
|
|
575 |
TFloatFixPt Abs( TFloatFixPt& aValue );
|
|
|
576 |
|
|
|
577 |
|
|
|
578 |
/**
|
|
|
579 |
* Return the square root value for this number.
|
|
|
580 |
*
|
|
|
581 |
* @since 1.0
|
|
|
582 |
* @param aValue : real number to find square root
|
|
|
583 |
* @return square root value
|
|
|
584 |
*/
|
|
|
585 |
static TFloatFixPt Sqrt( TFloatFixPt aValue );
|
|
|
586 |
|
|
|
587 |
/**
|
|
|
588 |
* Return the square root value for the given number.
|
|
|
589 |
*
|
|
|
590 |
* @since 1.0
|
|
|
591 |
* @param aValue : 32-bit representation of real number
|
|
|
592 |
* @param aFracbits: number of bits allocated for fractional portion.
|
|
|
593 |
* @return square root value
|
|
|
594 |
*/
|
|
|
595 |
static TInt32 FixedSqrtGeneral( TInt32 aValue, TUint32 aFracbits );
|
|
|
596 |
|
|
|
597 |
private:
|
|
|
598 |
|
|
|
599 |
/**
|
|
|
600 |
* Optimized method to do multiplication using assembly.
|
|
|
601 |
*
|
|
|
602 |
* @since 1.0
|
|
|
603 |
* @param aValue : real number to find multiply with
|
|
|
604 |
* @return
|
|
|
605 |
*/
|
|
|
606 |
inline void GfxMultiplyAsm( TInt aValue );
|
|
|
607 |
|
|
|
608 |
public:
|
|
|
609 |
|
|
|
610 |
TInt iValue; // Must be the first data member of this class!
|
|
|
611 |
|
|
|
612 |
};
|
|
|
613 |
|
|
|
614 |
#ifdef SVG_FLOAT_BUILD
|
|
|
615 |
#define KFloatFixOne = (TFloatFixPt(1))
|
|
|
616 |
#define KFloatFixZero = (TFloatFixPt())
|
|
|
617 |
#define KMAXFLOATFIXVALUE (1e38f)
|
|
|
618 |
#define KMINFLOATFIXVALUE (-1e38f)
|
|
|
619 |
#define KMAXFLOATFIX (TFloatFixPt( KMAXFLOATFIXVALUE ))
|
|
|
620 |
#define KMINFLOATFIX (TFloatFixPt( KMINFLOATFIXVALUE ))
|
|
|
621 |
#else
|
|
|
622 |
#define KFloatFixOne (TFloatFixPt( 0x10000, ETrue ))
|
|
|
623 |
#define KFloatFixZero (TFloatFixPt())
|
|
|
624 |
#define KMAXFLOATFIXVALUE (0x7fff)
|
|
|
625 |
#define KMINFLOATFIXVALUE (-0x7fff)
|
|
|
626 |
#define KMAXFLOATFIX (TFloatFixPt( 0x7fff0000, ETrue ))
|
|
|
627 |
#define KMINFLOATFIX (TFloatFixPt( -0x7fff0000, ETrue ))
|
|
|
628 |
|
|
|
629 |
#endif
|
|
|
630 |
|
|
|
631 |
typedef struct
|
|
|
632 |
{
|
|
|
633 |
SVGReal matrix[2][3];
|
|
|
634 |
} SVGMatrix2x3;
|
|
|
635 |
|
|
|
636 |
#include "GfxFloatFixPt.inl"
|
|
|
637 |
|
|
|
638 |
#endif
|
|
|
639 |
#endif // GFXFIXPT_H
|