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:

    15 *

    16 */

    17 

    18 

    19 #ifndef RESOURCEDATA_H

    20 #define RESOURCEDATA_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include <barsread.h>

    25 #include <mmf/server/mmfhwdevice.h>

    26 #include "audiocodec.h"

    27 

    28 _LIT16(KDrive,"z:");

    29 _LIT16(KFileNameFormat,"HwDev0x%x.rsc");

    30 const TInt8 KResFileNameLength = 20;

    31 const TInt8 KResFileNameAndPathLength = 50;

    32 // CLASS DECLARATION

    33 

    34 /////

    35 // Class is used to read capabilities and initilaization data from codec

    36 // resource data files.

    37 ///

    38 NONSHARABLE_CLASS (CResourceData) : public CBase

    39 	{

    40 public: // Constructors and destructor

    41 

    42 	/////

    43 	 // Two-phased constructor.

    44 	 //

    45 	 // @param aResourceUid       UID of the resource whose data to read.

    46 	 // @return CResourceData*  Pointer to a newly constructed object.

    47 	 ///

    48 	static CResourceData* NewL(TUid aResourceUid);

    49 

    50 	/////

    51 	 // Destructor.

    52      ///

    53 	~CResourceData();

    54 

    55 public:

    56 

    57 	/////

    58 	 // Reads the capabilities data.

    59 	 //

    60 	 // @param aMode      Mode of the resource.

    61 	 // @param aConf      On return from a succesful call, contains the capabilities data.

    62  	 // @return           error code

    63 	 ///

    64 	TInt GetSSampleRates(TMode aMode, RArray<TInt>& aSampleRate);

    65 	TInt GetSModes(TMode aMode, RArray<TUid>& aModeConfig);

    66 

    67 private:

    68 

    69 	

    70 	//Constructor.

    71 	

    72 	CResourceData();

    73 

    74 	

    75 	//2nd phase constructor is private.

    76 	//The param is the UID of the resource whose data to read.

    77 	

    78 	void ConstructL(TUid aResourceUid);

    79 

    80 	

    81 	//Utility method for seeking resource to the correct mode. Leaves with

    82 	//KErrNotFound if mode is not found in the opened resource.

    83 	

    84 	//aMode is the codec mode.

    85 	

    86 	TInt SeekToMode(TMode aMode);

    87 

    88 private: // Data

    89 

    90 	// Resource UID.

    91 	TUid iResourceUid;

    92 

    93 	// Resource file data.

    94 	HBufC8* iResourceData;

    95 

    96 	// Resource file reader.

    97 	TResourceReader iResourceReader;

    98 

    99 	// Resource data end pointer (for safety checks).

   100 	const TUint8* iResourceDataEnd;

   101 	};

   102 

   103 #endif // RESOURCEDATA_H

   104 

   105 // End of File