--- /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 <DistanceAttenuationBase.h>
+#include <ControlObserver.h>
+
+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