1 #ifndef __RESAMPLER_DATA_TYPES_H__

     2 #define __RESAMPLER_DATA_TYPES_H__

     3 /*

     4 * Copyright (c) 2010 Ixonos Plc.

     5 * All rights reserved.

     6 * This component and the accompanying materials are made available

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

     8 * which accompanies this distribution, and is available

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

    10 *

    11 * Initial Contributors:

    12 * Nokia Corporation - Initial contribution

    13 *

    14 * Contributors:

    15 * Ixonos Plc

    16 *

    17 * Description:

    18 *

    19 */

    20 

    21 

    22 #include <limits.h>

    23 #include <stddef.h>

    24 

    25 /* Disable some warnings so that code compiles cleanly with highest 

    26  * warning levels. These are all related to function inlining.

    27  */

    28 

    29 

    30 /* Disable warnings for Windows and WINS compilations */

    31 #if defined(_MSC_VER)

    32 /* unreferenced inline function has been removed */

    33 #pragma warning(disable: 4514) 

    34 

    35 /* function not inlined */

    36 #pragma warning(disable: 4710) 

    37 

    38 /* selected for automatic inline expansion */

    39 #pragma warning(disable: 4711)

    40 #endif

    41 

    42 /** @ingroup types

    43 

    44 @file resampler_data_types.h

    45 

    46 A header file for sized integer types.

    47 

    48 

    49 */

    50 

    51 typedef signed short int        int16;

    52 typedef signed long int         int24;

    53 typedef signed int              int32;

    54 

    55 typedef signed long long int    int40;

    56 typedef signed long long int    int48;

    57 typedef signed long long int    int64;

    58 

    59 typedef unsigned short int      uint16;

    60 typedef unsigned long int       uint24;

    61 typedef unsigned int            uint32;

    62 

    63 typedef unsigned long long int  uint40;

    64 typedef unsigned long long int  uint48;

    65 typedef unsigned long long int  uint64;

    66 

    67 #define RESAMPLER_INT16_MAX        ((int16)32767)

    68 #define RESAMPLER_INT16_MIN ((int16)(-32767 - 1))

    69 #define RESAMPLER_INT24_MAX             (8388607)

    70 #define RESAMPLER_INT24_MIN        (-8388607 - 1)

    71 #define RESAMPLER_INT32_MAX          (2147483647)

    72 #define RESAMPLER_INT32_MIN     (-2147483647 - 1)

    73 

    74 

    75 typedef enum RESAMPLER_DataType

    76 {

    77     /** Sixteen-bit data type (Q15) */

    78     RESAMPLER_DATA_TYPE_INT16 = 0,

    79     /** Twenty-four-bit data type (Q19) */

    80     RESAMPLER_DATA_TYPE_INT24,

    81     /** Thirty-two-bit data type (Q23) */

    82     RESAMPLER_DATA_TYPE_INT32,

    83     /** Thirty-two-bit data type (Q15) */

    84     RESAMPLER_DATA_TYPE_INT32_Q15,

    85     /** Floating-point data type */

    86     RESAMPLER_DATA_TYPE_FLOAT,

    87     /** Number of different data types */

    88     RESAMPLER_DATA_TYPE_COUNT

    89 } RESAMPLER_DataType;

    90 

    91 /** @return A string that describes @c aType.

    92  *

    93  *  @pre @c aType is a valid instance of @c RESAMPLER_DataType. */

    94 const char*  RESAMPLER_DataType_AsString(RESAMPLER_DataType aType);

    95 

    96 /** @return The @c RESAMPLER_TestDataType that corresponds to @c pString.

    97  *

    98  *  @pre @c pString is equal to "int16", "int24", "int32", "int32Q15", or "float. */

    99 RESAMPLER_DataType RESAMPLER_DataType_FromString(const char* pString);

   100 

   101 /** @return Whether @c aType is a valid instance of

   102  *          @c RESAMPLER_DataType. */

   103 int          RESAMPLER_DataType_IsValid(RESAMPLER_DataType aType);

   104 

   105 /** @return The size, in bytes, of an element of type @c aType.

   106  *

   107  *  @pre @c aType is a valid instance of @c RESAMPLER_DataType. */

   108 size_t       RESAMPLER_DataType_Size(RESAMPLER_DataType aType);

   109 

   110 #endif  /* __RESAMPLER_DATA_TYPES_H__ */