diff -r 000000000000 -r 40261b775718 devsoundextensions/effects/LocationBase/src/LocationBase.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devsoundextensions/effects/LocationBase/src/LocationBase.cpp Tue Feb 02 01:56:55 2010 +0200 @@ -0,0 +1,257 @@ +/* +* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: Implementation of the Location effect base class +* +*/ + + + + +// INCLUDE FILES + +#ifdef _DEBUG +#include +#endif + +#include +#include +#include + + +//360 degrees: +#define TWO_PI 6283 +//180 degrees: +#define PI 3142 +//90 degrees: +#define QUARTER_PI 1570 +// ============================ MEMBER FUNCTIONS =============================== + +// ----------------------------------------------------------------------------- +// CLocation::CLocation +// C++ default constructor can NOT contain any code, that +// might leave. +// ----------------------------------------------------------------------------- +// +EXPORT_C CLocation::CLocation() + : iLocationData(0,0,0,0,0,0), + iDataPckgTo(iLocationData), + iDataPckgFrom(iLocationData) + { + } + +// Destructor +EXPORT_C CLocation::~CLocation() + { + } + +// ----------------------------------------------------------------------------- +// CLocation::LocationCartesian +// ----------------------------------------------------------------------------- +// +EXPORT_C void CLocation::LocationCartesian( + TInt32& aX, TInt32& aY, TInt32& aZ ) + { + aX = iLocationData.iXCoordinate; + aY = iLocationData.iYCoordinate; + aZ = iLocationData.iZCoordinate; + } + +// ----------------------------------------------------------------------------- +// CLocation::LocationSpherical +// ----------------------------------------------------------------------------- +// +EXPORT_C void CLocation::LocationSpherical( + TInt32& aAzimuth, TInt32& aElevation, TInt32& aRadius ) + { + aAzimuth = iLocationData.iAzimuth; + aElevation = iLocationData.iElevation; + aRadius = iLocationData.iRadius; + } + +// ----------------------------------------------------------------------------- +// CLocation::SetLocationCartesianL +// ----------------------------------------------------------------------------- +// +EXPORT_C void CLocation::SetLocationCartesianL( + TInt32& aX, TInt32& aY, TInt32& aZ ) + { + iLocationData.iXCoordinate = aX; + iLocationData.iYCoordinate = aY; + iLocationData.iZCoordinate = aZ; + + + TReal SqrtXYZ = 0, squareX = 0, squareY = 0, squareZ = 0; + Math::Pow(squareX, aX, 2); + Math::Pow(squareY, aY, 2); + Math::Pow(squareZ, aZ, 2); + TReal sum = squareX + squareY + squareZ; + Math::Sqrt(SqrtXYZ, sum); + + + //Singularity region + + if(!((aX==0) && (aZ==0))) //was aY + { + + TReal zDividedByXAtan = atan2 ((TReal)-aX, (TReal)-aZ); + + if (zDividedByXAtan > 0) + iLocationData.iAzimuth = - (TInt32)(zDividedByXAtan * 1000 + 0.5); // minus sign added (shouldn't affect the result since it is compensated three rows above, but to be sure...) + else + iLocationData.iAzimuth = - (TInt32)(zDividedByXAtan * 1000 - 0.5); // minus sign added (shouldn't affect the result since it is compensated three rows above, but to be sure...) + + } + // else { we are exactly on Y-axis and therefore azimuth is undefined; let's use the previous azimuth value instead } + + + if (!((aX ==0) && (aY == 0) && (aZ == 0))) + { + + TReal result; + TReal yDividedBySqrtXYZ = aY/SqrtXYZ; + User::LeaveIfError(Math::ASin(result, yDividedBySqrtXYZ)); //was ACos + + if (result > 0) + iLocationData.iElevation = (TInt32) (result * 1000 + 0.5); + else + iLocationData.iElevation = (TInt32) (result * 1000 - 0.5); + + } + // else { we are exactly in origin and therefore elevation is undefined; let's use the previous elevation value instead } + + iLocationData.iRadius= (TInt32) (SqrtXYZ + 0.5); + + + while(iLocationData.iElevation > PI) + { + iLocationData.iElevation = iLocationData.iElevation - TWO_PI; + } + + if(iLocationData.iElevation > QUARTER_PI) + { + iLocationData.iElevation = iLocationData.iElevation - (iLocationData.iElevation - QUARTER_PI) * 2; + iLocationData.iAzimuth = iLocationData.iAzimuth + PI; + } + + while(iLocationData.iElevation < -PI) + { + iLocationData.iElevation = iLocationData.iElevation + TWO_PI; + } + if(iLocationData.iElevation < -QUARTER_PI) + { + iLocationData.iElevation = iLocationData.iElevation + (QUARTER_PI - iLocationData.iElevation) * 2; + iLocationData.iAzimuth = iLocationData.iAzimuth + PI; + } + + while (iLocationData.iAzimuth < 0) + iLocationData.iAzimuth = iLocationData.iAzimuth + TWO_PI; + while (iLocationData.iAzimuth > TWO_PI) + iLocationData.iAzimuth = iLocationData.iAzimuth - TWO_PI; + + } + +// ----------------------------------------------------------------------------- +// CLocation::SetLocationSphericalL +// ----------------------------------------------------------------------------- +// +EXPORT_C void CLocation::SetLocationSphericalL( + TInt32& aAzimuth, TInt32& aElevation, TInt32& aRadius ) + { + + while(aElevation > PI) + { + aElevation = aElevation - TWO_PI; + } + + if(aElevation > QUARTER_PI) + { + aElevation = aElevation - (aElevation - QUARTER_PI) * 2; + aAzimuth = aAzimuth + PI; + } + + while(aElevation < -PI) + { + aElevation = aElevation + TWO_PI; + } + if(aElevation < -QUARTER_PI) + { + aElevation = aElevation + (QUARTER_PI - aElevation) * 2; + aAzimuth = aAzimuth + PI; + } + + while (aAzimuth < 0) + aAzimuth = aAzimuth + TWO_PI; + while (aAzimuth > TWO_PI) + aAzimuth = aAzimuth - TWO_PI; + + + iLocationData.iAzimuth = aAzimuth; + iLocationData.iElevation = aElevation; + iLocationData.iRadius = aRadius; + + + TReal elevation = aElevation / 1000.0; // conversion from milliradians to radians because Sin and Cos functions eat radians + + TReal elevationSin; + TReal elevationCos; + User::LeaveIfError( Math::Sin( elevationSin, elevation ) ); + User::LeaveIfError( Math::Cos( elevationCos, elevation ) ); + + TReal azimuthSin; + TReal azimuthCos; + User::LeaveIfError( Math::Sin( azimuthSin, aAzimuth / 1000.0) ); + User::LeaveIfError( Math::Cos( azimuthCos, aAzimuth / 1000.0) ); + + + iLocationData.iXCoordinate = (TInt32)(0.5 + aRadius * elevationCos * azimuthSin); + iLocationData.iYCoordinate = (TInt32)(0.5 + aRadius * elevationSin); + iLocationData.iZCoordinate = (TInt32)(0.5 - aRadius * elevationCos * azimuthCos); + + } + +// ----------------------------------------------------------------------------- +// CLocation::DoEffectData +// ----------------------------------------------------------------------------- +// +EXPORT_C const TDesC8& CLocation::DoEffectData() + { +#ifdef _DEBUG + RDebug::Print(_L("CLocation::DoEffectData")); +#endif + iDataPckgTo = iLocationData; + return iDataPckgTo; + } + +// ----------------------------------------------------------------------------- +// CLocation::SetEffectData +// ----------------------------------------------------------------------------- +// +EXPORT_C void CLocation::SetEffectData( + const TDesC8& aEffectDataBuffer ) + { +#ifdef _DEBUG + RDebug::Print(_L("CLocation::SetEffectData")); +#endif + TEfLocationDataPckg dataPckg; + dataPckg.Copy(aEffectDataBuffer); + iLocationData = dataPckg(); + iEnabled = iLocationData.iEnabled; + iEnforced = iLocationData.iEnforced; + iHaveUpdateRights = iLocationData.iHaveUpdateRights; + + } + +// ========================== OTHER EXPORTED FUNCTIONS ========================= + +// End of File