mmfenh/enhancedmediaclient/Client/src/Components/AudioEffects/RoomLevelEffectImpl.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mmfenh/enhancedmediaclient/Client/src/Components/AudioEffects/RoomLevelEffectImpl.cpp Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,475 @@
+/*
+* 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 "RoomLevelEffectImpl.h"
+#include <RoomLevelBase.h>
+#include <ControlObserver.h>
+#include "ReverbEffectImpl.h"
+
+#ifdef _DEBUG
+#include <e32debug.h>
+#define _U(s) _L(s)
+#define RET_ERR_IF_ERR(err) if (err!=KErrNone) { \
+ RDebug::Print(_L("RET_ERR_IF_ERR:Line[%d]Err[%d]"), __LINE__, err); \
+ RDebug::Print(_U( __FILE__ )); \
+ return err; }
+#else
+#define RET_ERR_IF_ERR(err) if (err!=KErrNone) return err
+#endif // _DEBUG
+
+using namespace multimedia;
+
+CRoomLevelEffect::CRoomLevelEffect()
+ {
+ // No Impl
+ }
+
+CRoomLevelEffect::~CRoomLevelEffect()
+ {
+ delete iPrevRoomLevelProxy;
+ delete iRoomLevelProxy;
+ iObservers.Close();
+ }
+
+TInt CRoomLevelEffect::PostConstructor()
+ {
+ TRAPD( status, CEffectControlBase::ConstructL(KUidRoomLevelEffect) );
+ return status;
+ }
+
+// From MControl begins
+TInt CRoomLevelEffect::AddObserver( MControlObserver& aObserver )
+ {
+ return iObservers.Append(&aObserver);
+ }
+
+TInt CRoomLevelEffect::RemoveObserver( MControlObserver& aObserver )
+ {
+ TInt index = iObservers.Find(&aObserver);
+ if( index != KErrNotFound )
+ {
+ iObservers.Remove(index);
+ }
+ return index;
+ }
+
+TUid CRoomLevelEffect::Type()
+ {
+ return KRoomLevelEffectControl;
+ }
+
+TControlType CRoomLevelEffect::ControlType()
+ {
+ return EEffectControl;
+ }
+
+// From MControl ends
+
+// From MEffectControl begins
+TInt CRoomLevelEffect::Apply()
+ {
+ return DoApply();
+ }
+
+// From MEffectControl ends
+
+TInt CRoomLevelEffect::DoApply()
+ {
+ TInt error(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ TRAP(error,iRoomLevelProxy->ApplyL());
+ }
+ else
+ {
+ error = KErrNotReady;
+ }
+ return error;
+ }
+
+// From MRoomLevelEffect begins
+/**
+* Gets the RoomLevel current level in mB
+* @since 5.0
+* @return RoomLevel current level
+*/
+TInt CRoomLevelEffect::Level(TInt& aLevel)
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ aLevel = iRoomLevelProxy->Level();
+ }
+ else
+ {
+ status = KErrNotReady;
+ }
+ return status;
+ }
+
+/**
+* Gets the RoomLevel current level maximum and minimum in mB
+* @since 5.0
+* @param aMin Minimum current level
+* @param aMax Maximum current level
+* @return -
+*/
+TInt CRoomLevelEffect::LevelRange( TInt& aMin, TInt& aMax )
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ TInt32 min,max;
+ iRoomLevelProxy->LevelRange(min,max);
+ aMin = min;
+ aMax = max;
+ }
+ else
+ {
+ status = KErrNotReady;
+ }
+ return status;
+ }
+
+/**
+* Sets the RoomLevel level, it will leave if aRoomLevel is not within range of Min and Max
+* @since 5.0
+* @param aRoomLevelLevel The RoomLevel level in mB
+*/
+TInt CRoomLevelEffect::SetRoomLevel( TInt aRoomLevel )
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ TRAP(status,iRoomLevelProxy->SetRoomLevelL(aRoomLevel));
+ }
+ else
+ {
+ status = KErrNotReady;
+ }
+ return status;
+ }
+
+// From MRoomLevelEffect ends
+
+// From MAudioEffectControl
+/**
+* Disable the effect
+* @since 5.0
+*/
+TInt CRoomLevelEffect::Disable()
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ TRAP(status,iRoomLevelProxy->DisableL());
+ }
+ else
+ {
+ status = KErrNotReady;
+ }
+ return status;
+ }
+
+/**
+* Enable the effect
+* @since 5.0
+*/
+TInt CRoomLevelEffect::Enable()
+ {
+ TInt status(KErrNone);
+ RDebug::Print(_L("CRoomLevelEffect::Enable() [%x]"),iRoomLevelProxy);
+ if(iRoomLevelProxy)
+ {
+ TRAP(status,iRoomLevelProxy->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 CRoomLevelEffect::Enforce( TBool &aEnforced )
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ TRAP(status,iRoomLevelProxy->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
+* @return ETrue if this object currently has rights to update the settings of this effect,
+* EFalse otherwise.
+*/
+TInt CRoomLevelEffect::HaveUpdateRights(TBool &aHaveUpdateRights)
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ aHaveUpdateRights = iRoomLevelProxy->HaveUpdateRights();
+ }
+ else
+ {
+ status = KErrNotReady;
+ }
+ return status;
+ }
+
+/**
+* Check if the effect is enabled
+* @since 5.0
+* @return ETrue if the effect is enabled, EFalse if the effect is disabled.
+*/
+TInt CRoomLevelEffect::IsEnabled(TBool &aEnabled)
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ aEnabled = iRoomLevelProxy->IsEnabled();
+ }
+ else
+ {
+ status = KErrNotReady;
+ }
+ return status;
+ }
+
+/**
+* Check if the effect is enforced.
+* @since 5.0
+* @return ETrue if the effect is enforced, EFalse if the effect isn ot enforced.
+*/
+TInt CRoomLevelEffect::IsEnforced(TBool &aEnforced)
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ aEnforced = iRoomLevelProxy->IsEnforced();
+ }
+ else
+ {
+ status = KErrNotReady;
+ }
+ return status;
+ }
+
+/*
+* Get the unique identifier of the audio effect
+* @since 5.0
+* @return Unique identifier of the audio effect object.
+*/
+TInt CRoomLevelEffect::Uid(TUid &aUid)
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ aUid = iRoomLevelProxy->Uid();
+ }
+ else
+ {
+ status = KErrNotReady;
+ }
+ return status;
+ }
+// From MAudioEffectControl Ends
+
+
+// From CEffectControlBase begins
+void CRoomLevelEffect::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();
+ }
+ }
+ }
+
+TInt CRoomLevelEffect::AttachReverb( MReverbControl& aReverb )
+ {
+ TInt status(KErrNone);
+ if ( iCReverbEffect )
+ {
+ status = KErrAlreadyExists;
+ }
+ RET_ERR_IF_ERR( status );
+
+ if ( aReverb.Type() != KReverbEffectControl )
+ {
+ status = KErrArgument;
+ }
+ RET_ERR_IF_ERR( status );
+
+ iCReverbEffect = dynamic_cast<CReverbEffect*>(&aReverb);
+ status = KErrNone;
+ return status;
+ }
+
+TInt CRoomLevelEffect::DetachReverb( MReverbControl& aReverb )
+ {
+ TInt status(KErrNone);
+ if ( aReverb.Type() != KReverbEffectControl )
+ {
+ status = KErrArgument;
+ }
+ RET_ERR_IF_ERR( status );
+
+ status = KErrNotFound;
+ iCReverbEffect = dynamic_cast<CReverbEffect*>(&aReverb);
+ if ( iCReverbEffect == dynamic_cast<CReverbEffect*>(&aReverb) )
+ {
+ status = KErrNone;
+
+ // Make sure CRoomLevelEffect::AttachReverb is called before proxy gets created.
+ if ( !iCReverbEffect )
+ {
+ status = KErrNotReady;
+ }
+ RET_ERR_IF_ERR( status );
+
+ // Detach reverb proxy here
+ CEnvironmentalReverb* aReverb(NULL);
+ status = iCReverbEffect->GetCEnvironmentalReverb(aReverb);
+ RET_ERR_IF_ERR( status );
+
+ status = iRoomLevelProxy->DettachReverb(*aReverb);
+ RET_ERR_IF_ERR( status );
+
+ iCReverbEffect = NULL;
+ }
+ return status;
+ }
+
+// From CEffectControlBase ends
+
+TInt CRoomLevelEffect::CreateEffectProxy()
+ {
+ TInt status(KErrNone);
+ status = GetMessageHandle(iMsgHndlrHandlePckg);
+ RET_ERR_IF_ERR( status );
+
+ iCustomCommand = GetCustomCommand();
+ if(!iCustomCommand)
+ {
+ status = KErrNotReady;
+ }
+ RET_ERR_IF_ERR( status );
+
+ // Make sure CRoomLevelEffect::AttachReverb is called before proxy gets created.
+ if ( !iCReverbEffect )
+ {
+ status = KErrNotReady;
+ }
+ RET_ERR_IF_ERR( status );
+
+ TRAP(status,iRoomLevelProxy = CRoomLevelProxy::NewL(iMsgHndlrHandlePckg, *iCustomCommand, NULL));
+ RET_ERR_IF_ERR( status );
+
+ // Attach reverb proxy here
+ CEnvironmentalReverb* aReverb(NULL);
+ status = iCReverbEffect->GetCEnvironmentalReverb(aReverb);
+ RET_ERR_IF_ERR( status );
+
+ status = iRoomLevelProxy->AttachReverb(*aReverb);
+ RET_ERR_IF_ERR( status );
+
+ TRAP(status,iRoomLevelProxy->RegisterObserverL(*this));
+
+ return status;
+ }
+
+TInt CRoomLevelEffect::DeleteEffectProxy()
+ {
+ TInt status(KErrNone);
+ if(iRoomLevelProxy)
+ {
+ iPrevRoomLevelProxy = iRoomLevelProxy;
+ }
+ iRoomLevelProxy = NULL;
+ return status;
+ }
+
+TInt CRoomLevelEffect::SavePreviousSettings()
+ {
+ TInt status(KErrNone);
+ if(iPrevRoomLevelProxy)
+ {
+ TBool enforce = iPrevRoomLevelProxy->IsEnforced();
+ iRoomLevelProxy->EnforceL(enforce);
+
+ TBool enable = iPrevRoomLevelProxy->IsEnabled();
+ if(enable)
+ {
+ iRoomLevelProxy->EnableL();
+ }
+
+ delete iPrevRoomLevelProxy;
+ iPrevRoomLevelProxy = NULL;
+ }
+ return status;
+ }
+
+ void CRoomLevelEffect::EffectChanged( const CAudioEffect* /*aObservedEffect*/, TUint8 aEvent )
+ {
+ for ( TInt i = 0; i < iObservers.Count(); i++ )
+ {
+ iObservers[i]->Event(this,aEvent,NULL);
+ }
+ }
+
+// End of file