diff -r 000000000000 -r 71ca22bcf22a mmfenh/enhancedmediaclient/Client/src/Components/AudioEffects/DistanceAttenuationEffectImpl.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mmfenh/enhancedmediaclient/Client/src/Components/AudioEffects/DistanceAttenuationEffectImpl.cpp Tue Feb 02 01:08:46 2010 +0200 @@ -0,0 +1,446 @@ +/* +* Copyright (c) 2006 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: Project file for EnhancedMediaClient Utility +* +*/ + + +#include "DistanceAttenuationEffectImpl.h" +#include +#include + +using namespace multimedia; + +CDistanceAttenuationEffect::CDistanceAttenuationEffect() + { + // No Impl + } + +CDistanceAttenuationEffect::~CDistanceAttenuationEffect() + { + delete iPrevDistanceAttenuationProxy; + delete iDistanceAttenuationProxy; + iObservers.Close(); + } + +TInt CDistanceAttenuationEffect::PostConstructor() + { + TRAPD( status, CEffectControlBase::ConstructL(KUidDistanceAttenuationEffect) ); + return status; + } + +// From MControl begins +TInt CDistanceAttenuationEffect::AddObserver( MControlObserver& aObserver ) + { + return iObservers.Append(&aObserver); + } + +TInt CDistanceAttenuationEffect::RemoveObserver( MControlObserver& aObserver ) + { + TInt index = iObservers.Find(&aObserver); + if( index != KErrNotFound ) + { + iObservers.Remove(index); + } + return index; + } + +TUid CDistanceAttenuationEffect::Type() + { + return KDistanceAttenuationEffectControl; + } + +TControlType CDistanceAttenuationEffect::ControlType() + { + return EEffectControl; + } + +// From MControl ends + +// From MEffectControl begins +TInt CDistanceAttenuationEffect::Apply() + { + return DoApply(); + } + +// From MEffectControl ends + +TInt CDistanceAttenuationEffect::DoApply() + { + TInt error(KErrNone); + if(iDistanceAttenuationProxy) + { + TRAP(error,iDistanceAttenuationProxy->ApplyL()); + } + else + { + error = KErrNotReady; + } + return error; + } + +// From MDistanceAttenuationEffect begins + +/** +* Gets the Distance Attenuation of the listener. +* @since 3.0 +* @param aRMin The source-to-listener distance below which the sound level is constant +* @param aRMax The source-to-listener distance above which the sound level is constant or zero +* @param aMuteAfterMax Indicate if the sound is muted beyond RMax +* @param aRollOffFactor Multiplier factor to source-to-listener distance +* @param aRoomRollOffFactor Multiplier factor to source-to-listener distance for Room effect. +* @return - +*/ +TInt CDistanceAttenuationEffect::DistanceAttenuation( TInt& aRMin, TInt& aRMax, TBool& aMuteAfterMax, + TUint& aRollOffFactor, TUint& aRoomRollOffFactor ) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + TInt32 a,b; + TBool c; + TUint32 d,e; + iDistanceAttenuationProxy->DistanceAttenuation(a,b,c,d,e); + aRMin = a; + aRMax = b; + aMuteAfterMax = c; + aRollOffFactor = d; + aRoomRollOffFactor = e; + } + else + { + status = KErrNotReady; + } + return status; + } + + +/** +* Get roll off factor maximum value. +* @since 3.0 +* @param aRollOffFactor The maximum multiplier factor to source-to-listener distance for Room effect. +* @return - +*/ +TInt CDistanceAttenuationEffect::RollOffFactorMax( TUint& aRollOfFactorMax ) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + TUint32 factormax; + iDistanceAttenuationProxy->RollOffFactorMax(factormax); + aRollOfFactorMax = factormax; + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Get room roll off factor maximum value. +* @since 3.0 +* @param aRollOffFactor The maximum multiplier factor to source-to-listener distance for Room effect. +* @return - +*/ +TInt CDistanceAttenuationEffect::RoomRollOffFactorMax( TUint& aRoomRollOfFactorMax ) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + TUint32 factormax; + iDistanceAttenuationProxy->RoomRollOffFactorMax(factormax); + aRoomRollOfFactorMax = factormax; + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Sets the Distance Attenuation +* @since 3.0 +* @param aRMin The source-to-listener distance below which the sound level is constant +* @param aRMax The source-to-listener distance above which the sound level is constant or zero +* @param aMuteAfterMax Indicate if the sound is muted beyond RMax +* @param aRollOffFactor Multiplier factor to source-to-listener distance +* @param aRoomRollOffFactor Multiplier factor to source-to-listener distance for Room effect. +* @return - +*/ +TInt CDistanceAttenuationEffect::SetDistanceAttenuation( TInt aRMin, TInt aRMax, TBool aMuteAfterMax, + TUint aRollOffFactor, TUint aRoomRollOffFactor ) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + TInt32 a,b; + TBool c; + TUint32 d,e; + a = aRMin; + b = aRMax; + c = aMuteAfterMax; + d = aRollOffFactor; + e = aRoomRollOffFactor; + + TRAP(status,iDistanceAttenuationProxy->SetDistanceAttenuationL(a,b,c,d,e)); + } + else + { + status = KErrNotReady; + } + return status; + } + +// From MDistanceAttenuationEffect ends + +// From MAudioEffectControl +/** +* Disable the effect +* @since 5.0 +*/ +TInt CDistanceAttenuationEffect::Disable() + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + TRAP(status,iDistanceAttenuationProxy->DisableL()); + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Enable the effect +* @since 5.0 +*/ +TInt CDistanceAttenuationEffect::Enable() + { + TInt status(KErrNone); + RDebug::Print(_L("CDistanceAttenuationEffect::Enable() [%x]"),iDistanceAttenuationProxy); + if(iDistanceAttenuationProxy) + { + TRAP(status,iDistanceAttenuationProxy->EnableL()); + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Enforce the effect. +* @since 5.0 +* @param aEnforced Indicate the effect is to be enforced or not. ETrue = Enforced. +*/ +TInt CDistanceAttenuationEffect::Enforce( TBool &aEnforced ) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + TRAP(status,iDistanceAttenuationProxy->EnforceL(aEnforced)); + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Check if this effect object currently has update rights. +* A client can lose update rights in some hardware platforms where there are a limited +* number of instances of an effect that can exist at the same time. When an effect instance +* has lost update rights the user can still change settings, but any calls to Apply the +* settings will be deferred until update rights are regained. +* @since 5.0 +* @param ETrue if this object currently has rights to update the settings of this effect, +* EFalse otherwise. +*/ +TInt CDistanceAttenuationEffect::HaveUpdateRights(TBool &aHaveUpdateRights) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + aHaveUpdateRights = iDistanceAttenuationProxy->HaveUpdateRights(); + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Check if the effect is enabled +* @since 5.0 +* @param ETrue if the effect is enabled, EFalse if the effect is disabled. +*/ +TInt CDistanceAttenuationEffect::IsEnabled(TBool &aEnabled) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + aEnabled = iDistanceAttenuationProxy->IsEnabled(); + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Check if the effect is enforced. +* @since 5.0 +* @param ETrue if the effect is enforced, EFalse if the effect isn ot enforced. +*/ +TInt CDistanceAttenuationEffect::IsEnforced(TBool &aEnforced) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + aEnforced = iDistanceAttenuationProxy->IsEnforced(); + } + else + { + status = KErrNotReady; + } + return status; + } + +/* +* Get the unique identifier of the audio effect +* @since 5.0 +* @param Unique identifier of the audio effect object. +*/ +TInt CDistanceAttenuationEffect::Uid(TUid &aUid) + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + aUid = iDistanceAttenuationProxy->Uid(); + } + else + { + status = KErrNotReady; + } + return status; + } +// From MAudioEffectControl Ends + + +// From CEffectControlBase begins +void CDistanceAttenuationEffect::Event( TEffectControlEvent aEvent ) + { + TInt status(KErrNone); + // Controller Loaded with ECIBuilderCreated + if ( aEvent == ECIBuilderCreated ) + { + RDebug::Print(_L("Deleting Proxy")); + status = DeleteEffectProxy(); + RDebug::Print(_L("Deleting Proxy [%d]"),status); + status = CreateEffectProxy(); + RDebug::Print(_L("Creating Proxy [%d]"),status); + if(status == KErrNone) + { + SavePreviousSettings(); + } + else + { + for ( TInt i = 0; i < iObservers.Count(); i++ ) + { + iObservers[i]->Event(this,MAudioEffectControl::KDisabled,NULL); + } + } + } + else if ( aEvent == EMessageHandlerDeleted ) + { + if(status == KErrNone) + { + DeleteEffectProxy(); + } + } + } + +// From CEffectControlBase ends + +TInt CDistanceAttenuationEffect::CreateEffectProxy() + { + TInt status(KErrNone); + status = GetMessageHandle(iMsgHndlrHandlePckg); + if(status != KErrNone) + { + return status; + } + iCustomCommand = GetCustomCommand(); + if(!iCustomCommand) + { + return KErrNotReady; + } + + TRAP(status,iDistanceAttenuationProxy = CDistanceAttenuationProxy::NewL(iMsgHndlrHandlePckg, *iCustomCommand, NULL)); + if(status == KErrNone) + { + TRAP(status,iDistanceAttenuationProxy->RegisterObserverL(*this)); + } + + return status; + } + +TInt CDistanceAttenuationEffect::DeleteEffectProxy() + { + TInt status(KErrNone); + if(iDistanceAttenuationProxy) + { + iPrevDistanceAttenuationProxy = iDistanceAttenuationProxy; + } + iDistanceAttenuationProxy = NULL; + return status; + } + +TInt CDistanceAttenuationEffect::SavePreviousSettings() + { + TInt status(KErrNone); + if(iPrevDistanceAttenuationProxy) + { + TBool enforce = iPrevDistanceAttenuationProxy->IsEnforced(); + iDistanceAttenuationProxy->EnforceL(enforce); + + TBool enable = iPrevDistanceAttenuationProxy->IsEnabled(); + if(enable) + { + iDistanceAttenuationProxy->EnableL(); + } + + delete iPrevDistanceAttenuationProxy; + iPrevDistanceAttenuationProxy = NULL; + } + return status; + } + + void CDistanceAttenuationEffect::EffectChanged( const CAudioEffect* /*aObservedEffect*/, TUint8 aEvent ) + { + for ( TInt i = 0; i < iObservers.Count(); i++ ) + { + iObservers[i]->Event(this,aEvent,NULL); + } + } + +// End of file