1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   Interface for granting a permission and for using files from 

    15 *                apps' private cage. No capabilities required 

    16 *

    17 */

    18 

    19 

    20 

    21 #ifndef __ALFBRIDGERCLIENT_H__

    22 #define __ALFBRIDGERCLIENT_H__

    23 

    24 #include <e32std.h>

    25 #include <e32def.h>

    26 #include <e32base.h>

    27 

    28 NONSHARABLE_CLASS(AlfServerStarter)

    29 	{

    30 	public:

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

    32 	};

    33 

    34 

    35 /**

    36 * internal client for decoder server

    37 */    

    38 NONSHARABLE_CLASS(RAlfBridgerClient): public RSessionBase

    39     {

    40 public:

    41     /**

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

    43 	*/

    44     IMPORT_C TInt Connect();

    45     

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

    47     

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

    49 

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

    51 

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

    53 private:

    54     TInt iSpare1;

    55     TInt iSpare2;

    56     };

    57 

    58 

    59 NONSHARABLE_CLASS(RAlfTfxClient): public RAlfBridgerClient

    60     {

    61 public:

    62     /**

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

    64 	*/

    65     IMPORT_C TInt Open();

    66 

    67     /**

    68     * Loads effects plugin with given implementation uid. 

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

    70     */

    71     IMPORT_C TInt LoadTfxPlugin(const TUid& aPluginUid);

    72 

    73     /**

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

    75     * windows to scene, those will be closed

    76     */

    77     IMPORT_C void UnloadTfxPlugin(const TUid& aPluginUid);

    78     

    79     /**

    80     * Sends message for a plugin, synhcronous method

    81     */

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

    83  

    84     /**

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

    86     * when command is being executed and completed in server.

    87     */   

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

    89  

    90     /**

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

    92     * Message ids are implementation specific.

    93     */   

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

    95 

    96     /**

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

    98      */

    99     IMPORT_C void PrepareFrame(TUint aEstimatedFrameInterval);

   100 

   101 private:

   102     TInt iSpare1;

   103     TInt iSpare2;

   104     };

   105     

   106 #endif