1 /*

     2 * Copyright (c) 2003, 2004 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:  Basic utilities to handle conversion and object safe deletion.

    15 *

    16 */

    17 

    18 

    19 #ifndef  __JP2KIMAGEUTILS_H__

    20 #define __JP2KIMAGEUTILS_H__

    21 

    22 //  INCLUDES

    23 #include <e32std.h>

    24 #include <e32base.h>

    25 

    26 // CONSTANTS

    27 

    28 // MACROS

    29 

    30 // DATA TYPES

    31 

    32 // FUNCTION PROTOTYPES

    33 

    34 // FORWARD DECLARATIONS

    35 

    36 // TEMPLATE DECLARATION

    37 

    38 /**

    39 *  Basic reading utility class.

    40 *  Utility class with methods for standard 

    41 *  reading stuff from a TUint8* string. 

    42 *

    43  * JP2KCodec.dll

    44  * @since 2.6

    45 */

    46 class PtrReadUtil

    47     {

    48     public:  // Constructors and destructor

    49         

    50     public: // New functions

    51         

    52         /**

    53         * Reads big endian value from given buffer.

    54         * @since 2.6

    55         * @param aPtr: Pointer to buffer

    56         * @TUint16: Read value.

    57         */

    58         static TUint16 ReadBigEndianUint16( const TUint8* aPtr );

    59 

    60         /**

    61         * Reads big endian value from given buffer.

    62         * @since 2.6

    63         * @param aPtr: Pointer to buffer

    64         * @TUint32: Read value.

    65         */

    66         static TUint32 ReadBigEndianUint32( const TUint8* aPtr );

    67 

    68         /**

    69         * Reads big endian value from given buffer and increments pointer.

    70         * @since 2.6

    71         * @param aPtr: Pointer to buffer

    72         * @TUint16: Read value.

    73         */

    74         static TUint16 ReadBigEndianUint16Inc( const TUint8*& aPtr );

    75 

    76         /**

    77         * Reads big endian value from given buffer and increments pointer.

    78         * @since 2.6

    79         * @param aPtr: Pointer to buffer

    80         * @TUint32: Read value.

    81         */

    82         static TUint32 ReadBigEndianUint32Inc( const TUint8*& aPtr );

    83 

    84     public: // Functions from base classes

    85         

    86     protected:  // New functions

    87 

    88     protected:  // Functions from base classes

    89         

    90     private:

    91 

    92     public:     // Data

    93     

    94     protected:  // Data

    95 

    96     private:    // Data

    97 

    98     public:     // Friend classes

    99 

   100     protected:  // Friend classes

   101     

   102     private:    // Friend classes

   103     

   104     };

   105 

   106 #include "JP2KImageUtils.inl"

   107 

   108 #endif  // __JP2KIMAGEUTILS_H__

   109 

   110 

   111