/*

* Copyright (c) 2007 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:   Interface for granting a permission and for using files from 

*                apps' private cage. No capabilities required 

*

*/

#ifndef __ALFBRIDGERCLIENT_H__

#define __ALFBRIDGERCLIENT_H__

#include <e32std.h>

#include <e32def.h>

#include <e32base.h>

NONSHARABLE_CLASS(AlfServerStarter)

	{

	public:

	static IMPORT_C void StartL(TRequestStatus& aStatus, TBool aCreateProcess = ETrue);

	};

/**

* internal client for decoder server

*/    

NONSHARABLE_CLASS(RAlfBridgerClient): public RSessionBase

    {

public:

    /**

	* Connects to server. Assumes that server is up and running

	*/

    IMPORT_C TInt Connect();

    IMPORT_C TInt SendSynch(TInt aOp, const TDesC8& aBuffer);

    IMPORT_C TInt SendSynch(TInt aOp, const TIpcArgs& aIPCArgs );

    IMPORT_C void SendAsynchronous(TInt aOp, const TIpcArgs& aIPCArgs,TRequestStatus& aStatus );

    IMPORT_C TInt SendBlind(TInt aOp, const TIpcArgs& aIPCArgs );

     /**

     * Asks list of window groups that have graphics surfaces even

     * they are not supposed to be seen on screen

     * @param aArray array to be populated

     * @return error code.

     */    

    IMPORT_C TInt GetListOfInactiveWindowGroupsWSurfaces(RArray<TInt>* aWindowGroups);

     /**

     * Asks list of window groups that have graphics surfaces attached

     * @param aArray array to be populated

     * @return error code.

     */    

    IMPORT_C TInt GetListOfWindowGroupsWSurfaces(RArray<TInt>* aWindowGroups);

     /**

     * Asks the number of active effects

     * @return error code or number of active effects (>= 0).

     */    

     IMPORT_C TInt EffectsCount();

private:

    TInt iSpare1;

    TInt iSpare2;

    };

NONSHARABLE_CLASS(RAlfTfxClient): public RAlfBridgerClient

    {

public:

    /**

	* Connects to server. Assumes that server is up and running

	*/

    IMPORT_C TInt Open();

    /**

    * Loads effects plugin with given implementation uid. 

    * If the plugin was already loaded, returns KErrAlreadyExists, otherwise system wide error codes.	

    */

    IMPORT_C TInt LoadTfxPlugin(const TUid& aPluginUid);

    /**

    * Unloads effects plugin with given implementation uid. If the plugin had created some additional 

    * windows to scene, those will be closed

    */

    IMPORT_C void UnloadTfxPlugin(const TUid& aPluginUid);

    /**

    * Sends message for a plugin, synhcronous method

    */

    IMPORT_C TInt SendSynchronousData(const TUid& aPluginUid, const TDesC8& aInBuf, TDes8& aOutBuf);

    /**

    * Sends message for a plugin, asynhcronous method. Calling implementation must ensure that buffers exist 

    * when command is being executed and completed in server.

    */   

    IMPORT_C void SendAsynchronousData(const TUid& aPluginUid, const TDesC8& aInBuf, TDes8& aOutBuf, TRequestStatus& aStatus);

    /**

    * Cancels asynchronous command, if the default values are used, all commands specific for this client will be cancelled

    * Message ids are implementation specific.

    */   

    IMPORT_C void CancelAsynchronousData(const TUid& aPluginUid = KNullUid, TInt aCommandId = 0);

    /**

     * Trigger effects plugins to prepare next frame. Only FW should use this method

     */

    IMPORT_C void PrepareFrame(TUint aEstimatedFrameInterval);

private:

    TInt iSpare1;

    TInt iSpare2;

    };

#endif