1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // mmrcserverphysicaladaptation.h

    15 // 

    16 //

    17 

    18 #ifndef MMRCPHYSICALADAPTATION_H_

    19 #define MMRCPHYSICALADAPTATION_H_

    20 

    21 #include <e32std.h>

    22 #include <e32base.h>

    23 #include <a3f/a3fbase.h>

    24 #include <a3f/a3f_trace_utils.h>

    25 #include "mmrcclientserver.h"

    26 #include "maudiostreamadaptationobserver.h"

    27 

    28 class MLogicalChain;

    29 class MAudioContext;

    30 class CFourCCConvertor;

    31 class CMMRCServerSideAdaptationResponseAO;

    32 class CAudioStreamAdaptation;

    33 class CMMRCServerSession;

    34 

    35 //------------------------------------------------------------------------------------

    36 // CMMRCClientSideServerRequestToAdaptationAO

    37 //------------------------------------------------------------------------------------

    38 

    39 /**

    40 @internalComponent

    41 

    42 This class implements the proxy to the Physical adaptation.

    43 The main purpose of this class is to communicate with the physical resource manager.

    44 */

    45 NONSHARABLE_CLASS( CMMRCClientSideServerRequestToAdaptationAO ): public CActive, public MAudioStreamAdaptationObserver

    46 	{

    47 public:

    48 	/**

    49 	 * Constructs, and returns a pointer to, a new CMMRCClientSideServerRequestToAdaptationAO object.

    50 	 * Leaves on failure.

    51 	 * @param CMMRCServerController& A reference on the MMRC Server controller

    52 	 * @return CMMRCClientSideServerRequestToAdaptationAO* A pointer to newly created utlitly object.

    53 	 */

    54 	IMPORT_C static CMMRCClientSideServerRequestToAdaptationAO* NewL( );

    55 

    56 	/**

    57 	 * Destructor.

    58 	 */

    59 	~CMMRCClientSideServerRequestToAdaptationAO( );

    60 

    61 public:

    62 	void Initialize(CMMRCServerSession* aServerSession,

    63 					CMMRCServerSideAdaptationResponseAO* aCallback,

    64 					RThread* aClientThread,

    65 					const CFourCCConvertor& aFourCCConvertor);

    66 

    67 	void Service(TUint aRequestType);

    68 

    69 	/**

    70 	 * Callback in case of timeout

    71 	 */

    72 	void ResourceRequestAcknowledgmentTimeout( );

    73 

    74 	// from MAudioStreamAdaptationObserver

    75 	void PhysicalAdaptationEvent(TPhysicalEvent aEvent, TInt aError);

    76 	void StateEvent(TInt aReason, TAudioState aNewState);

    77 	void AddProcessingUnitComplete(TUid aType, TInt aError);

    78 	void RemoveProcessingUnitComplete(TUid aType, TInt aError);

    79 	void ProcessingFinished();

    80 	void FlushComplete(TInt aError);

    81 

    82 	//From CActive

    83 	virtual void RunL();

    84 	virtual void DoCancel();

    85 

    86 private:

    87 	/**

    88 	 * By default Symbian 2nd phase constructor is private.

    89 	 * @param CMMRCServerController& A reference on the MMRC Server controller

    90 	 */

    91 	CMMRCClientSideServerRequestToAdaptationAO( );

    92 

    93 	void TidyUp();

    94 

    95 	/**

    96 	 * By default Symbian 2nd phase constructor is private.

    97 	 */

    98 	void ConstructL( );

    99 

   100 private:

   101 	//owned

   102 	CAudioStreamAdaptation* iStreamAdaptation;

   103 

   104 	//not owned

   105 	RThread* iClientThread;

   106 	CMMRCServerSession* iServerSession;

   107 	CMMRCServerSideAdaptationResponseAO* iMMRCServerSideAdaptationResponseAO;

   108 

   109 	MLogicalChain* iLogicalChainRequested;

   110 	MLogicalChain* iLogicalChainLastCommited;

   111 	MAudioContext* iAudioContext;

   112 	TInt iRequestsProcessed;

   113 	TUint iRequestType;

   114 	};

   115 

   116 //------------------------------------------------------------------------------------

   117 // CMMRCServerSideAdaptationResponseAO

   118 //------------------------------------------------------------------------------------

   119 

   120 /**

   121 @internalComponent

   122 

   123 */

   124 NONSHARABLE_CLASS( CMMRCServerSideAdaptationResponseAO ) : public CActive

   125 	{

   126 public:

   127 	~CMMRCServerSideAdaptationResponseAO();

   128 	static CMMRCServerSideAdaptationResponseAO* NewL();

   129 	void Initialize(CMMRCServerSession* aServerSession, RThread* iServerThread );

   130 	void Service(TMMRCAdaptationToServerRequestResults aEvent, TInt aError);

   131 	void StartAdaptationListening();

   132 private:

   133 	CMMRCServerSideAdaptationResponseAO();

   134 	void ConstructL( );

   135 	void RunL( );

   136 	void DoCancel( );

   137 

   138 private:

   139 	//not owned

   140 	CMMRCServerSession* iMMRCServerSession;

   141 	RThread* iServerThread;

   142 

   143 	TMMRCAdaptationToServerRequestResults iEvent;

   144 	TInt iError;

   145 	};

   146 

   147 #endif /*MMRCPHYSICALADAPTATION_H_*/