Symaptic: os/graphics/m3g/m3gcore11/inc/m3g

     1 /*

     2 * Copyright (c) 2003 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 the License "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: Dynamic pointer array

    15 *

    16 */

    18 #ifndef __M3G_ARRAY_H__

    19 #define __M3G_ARRAY_H__

    21 /*!

    22  * \internal

    23  * \file

    24  * \brief Dynamic pointer array

    25  */

    27 /*!

    28  * \internal

    29  * \brief Dynamic array structure

    30  *

    31  * Prior to using an array, the structure must be initialized by

    32  * either calling \c m3gInitArray or explicitly clearing the structure

    33  * to all zeros.

    34  */

    35 typedef struct

    36 {

    37     M3Gsizei size, capacity;

    38     void **items;

    39 } PointerArray;

    41 /*----------------------------------------------------------------------

    42  * Internal functions

    43  *--------------------------------------------------------------------*/

    45 static M3Gint   m3gArrayAppend  (PointerArray *array,

    46                                  void *item,

    47                                  Interface *m3g);

    48 static void     m3gArrayDelete  (PointerArray *array, M3Gint idx);

    49 static M3Gint   m3gArrayInsert  (PointerArray *array,

    50                                  M3Gint idx,

    51                                  void *item,

    52                                  Interface *m3g);

    53 static M3Gint   m3gArrayFind    (const PointerArray *array, void *item);

    54 #if 0 /* currently disabled, but available if needed */

    55 static M3Gbool  m3gArrayRemove  (PointerArray *array, void *item);

    56 #endif

    57 static M3Gsizei m3gArraySize    (const PointerArray *array);

    58 static void     m3gClearArray   (PointerArray *array);

    59 static void     m3gDestroyArray (PointerArray *array, Interface *m3g);

    60 static M3Gbool  m3gEnsureArrayCapacity(PointerArray *array,

    61                                        M3Gsizei capacity,

    62                                        Interface *m3g);

    63 static void*    m3gGetArrayElement(const PointerArray *array, M3Gint idx);

    64 static void     m3gInitArray    (PointerArray *array);

    65 #if defined(M3G_NATIVE_LOADER) /* currently only used in loader */

    66 static void     m3gSetArrayElement(PointerArray *array,

    67                                    M3Gint idx,

    68                                    void *item);

    69 #endif

    70 #if 0 /* currently unused, but available here */

    71 static M3Gbool  m3gTrimArray    (PointerArray *array, Interface *m3g);

    72 #endif

    74 /*----------------------------------------------------------------------

    75  * Inline functions

    76  *--------------------------------------------------------------------*/

    78 /*!

    79  * \internal

    80  * \brief Returns the number of elements in the array

    81  */

    82 static M3G_INLINE M3Gsizei m3gArraySize(const PointerArray *array)

    83 {

    84     M3G_ASSERT_PTR(array);

    85     M3G_ASSERT(array->size <= array->capacity);

    86     return array->size;

    87 }

    89 /*!

    90  * \internal

    91  * \brief Returns the array element at \c index

    92  */

    93 static M3G_INLINE void *m3gGetArrayElement(const PointerArray *array,

    94                                            M3Gint idx)

    95 {

    96     M3G_ASSERT_PTR(array);

    97     M3G_ASSERT(idx >= 0 && idx < array->size);

    98     return array->items[idx];

    99 }

   101 #if defined(M3G_NATIVE_LOADER) /* currently only used in loader */

   102 /*!

   103  * \internal

   104  * \brief Sets the value of the array element at \c index

   105  */

   106 static M3G_INLINE void m3gSetArrayElement(PointerArray *array,

   107                                           M3Gint idx,

   108                                           void *item)

   109 {

   110     M3G_ASSERT_PTR(array);

   111     M3G_ASSERT(idx >= 0 && idx < array->size);

   112     array->items[idx] = item;

   113 }

   114 #endif

   116 #endif /*__M3G_ARRAY_H__*/

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--