diff -r 000000000000 -r 71ca22bcf22a mmfenh/enhancedmediaclient/Client/src/Components/AudioEffects/StereoWideningEffectImpl.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mmfenh/enhancedmediaclient/Client/src/Components/AudioEffects/StereoWideningEffectImpl.cpp Tue Feb 02 01:08:46 2010 +0200 @@ -0,0 +1,394 @@ +/* +* 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 "StereoWideningEffectImpl.h" +#include +#include + +using namespace multimedia; + +CStereoWideningEffect::CStereoWideningEffect() + { + // No Impl + } + +CStereoWideningEffect::~CStereoWideningEffect() + { + delete iPrevStereoWideningProxy; + delete iStereoWideningProxy; + iObservers.Close(); + } + +TInt CStereoWideningEffect::PostConstructor() + { + TRAPD( status, CEffectControlBase::ConstructL(KUidStereoWideningEffect) ); + return status; + } + +// From MControl begins +TInt CStereoWideningEffect::AddObserver( MControlObserver& aObserver ) + { + return iObservers.Append(&aObserver); + } + +TInt CStereoWideningEffect::RemoveObserver( MControlObserver& aObserver ) + { + TInt index = iObservers.Find(&aObserver); + if( index != KErrNotFound ) + { + iObservers.Remove(index); + } + return index; + } + +TUid CStereoWideningEffect::Type() + { + return KStereoWideningEffectControl; + } + +TControlType CStereoWideningEffect::ControlType() + { + return EEffectControl; + } + +// From MControl ends + +// From MEffectControl begins +TInt CStereoWideningEffect::Apply() + { + return DoApply(); + } + +// From MEffectControl ends + +TInt CStereoWideningEffect::DoApply() + { + TInt error(KErrNone); + if(iStereoWideningProxy) + { + TRAP(error,iStereoWideningProxy->ApplyL()); + } + else + { + error = KErrNotReady; + } + return error; + } + +// From MStereoWideningEffect begins +/** +* Check if continuous level is supported for stereo widening. +* @since 5.0 +* @param ETrue if continuous level is supported for stereo widening. If this returns +* EFalse, then the adaptation is actually setting the level to the nearest supported discrete +* value, when SetStereoWidenlingLevelL is called. +* @return Error Code +*/ +TInt CStereoWideningEffect::IsContinuousLevelSupported(TBool& aSupported) + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + aSupported = iStereoWideningProxy->IsContinuousLevelSupported(); + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Set stereo widening level. +* @since 5.0 +* @param aLevel Stereo widening level ranges from 0-100, where 0 is None and 100 is Maximum widening. +*/ +TInt CStereoWideningEffect::SetStereoWideningLevel( TInt aLevel ) + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + TRAP(status,iStereoWideningProxy->SetStereoWideningLevelL(aLevel)); + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Get the stereo widening settings. +* @since 5.0 +* @param aLevel Gets the Current Stereo widening level +* @return Error Code +*/ +TInt CStereoWideningEffect::StereoWideningLevel(TInt& aLevel) + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + aLevel = iStereoWideningProxy->StereoWideningLevel(); + } + else + { + status = KErrNotReady; + } + return status; + } + +// From MStereoWideningEffect ends + +// From MAudioEffectControl +/** +* Disable the effect +* @since 5.0 +*/ +TInt CStereoWideningEffect::Disable() + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + TRAP(status,iStereoWideningProxy->DisableL()); + } + else + { + status = KErrNotReady; + } + return status; + } + +/** +* Enable the effect +* @since 5.0 +*/ +TInt CStereoWideningEffect::Enable() + { + TInt status(KErrNone); + RDebug::Print(_L("CStereoWideningEffect::Enable() [%x]"),iStereoWideningProxy); + if(iStereoWideningProxy) + { + TRAP(status,iStereoWideningProxy->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 CStereoWideningEffect::Enforce( TBool &aEnforced ) + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + TRAP(status,iStereoWideningProxy->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 CStereoWideningEffect::HaveUpdateRights(TBool &aHaveUpdateRights) + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + aHaveUpdateRights = iStereoWideningProxy->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 CStereoWideningEffect::IsEnabled(TBool &aEnabled) + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + aEnabled = iStereoWideningProxy->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 CStereoWideningEffect::IsEnforced(TBool &aEnforced) + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + aEnforced = iStereoWideningProxy->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 CStereoWideningEffect::Uid(TUid &aUid) + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + aUid = iStereoWideningProxy->Uid(); + } + else + { + status = KErrNotReady; + } + return status; + } +// From MAudioEffectControl Ends + + +// From CEffectControlBase begins +void CStereoWideningEffect::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 CStereoWideningEffect::CreateEffectProxy() + { + TInt status(KErrNone); + status = GetMessageHandle(iMsgHndlrHandlePckg); + if(status != KErrNone) + { + return status; + } + iCustomCommand = GetCustomCommand(); + if(!iCustomCommand) + { + return KErrNotReady; + } + + TRAP(status,iStereoWideningProxy = CStereoWideningProxy::NewL(iMsgHndlrHandlePckg, *iCustomCommand, NULL)); + if(status == KErrNone) + { + TRAP(status,iStereoWideningProxy->RegisterObserverL(*this)); + } + + return status; + } + +TInt CStereoWideningEffect::DeleteEffectProxy() + { + TInt status(KErrNone); + if(iStereoWideningProxy) + { + iPrevStereoWideningProxy = iStereoWideningProxy; + } + iStereoWideningProxy = NULL; + return status; + } + +TInt CStereoWideningEffect::SavePreviousSettings() + { + TInt status(KErrNone); + if(iPrevStereoWideningProxy) + { + TBool enforce = iPrevStereoWideningProxy->IsEnforced(); + iStereoWideningProxy->EnforceL(enforce); + + TBool enable = iPrevStereoWideningProxy->IsEnabled(); + if(enable) + { + iStereoWideningProxy->EnableL(); + } + + delete iPrevStereoWideningProxy; + iPrevStereoWideningProxy = NULL; + } + return status; + } + + void CStereoWideningEffect::EffectChanged( const CAudioEffect* /*aObservedEffect*/, TUint8 aEvent ) + { + for ( TInt i = 0; i < iObservers.Count(); i++ ) + { + iObservers[i]->Event(this,aEvent,NULL); + } + } + +// End of file