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Wwise SDK 2018.1.11
 /*******************************************************************************

 The content of this file includes portions of the AUDIOKINETIC Wwise Technology

 released in source code form as part of the SDK installer package.

 Commercial License Usage

 Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology

 may use this file in accordance with the end user license agreement provided 

 with the software or, alternatively, in accordance with the terms contained in a

 written agreement between you and Audiokinetic Inc.

 Apache License Usage

 Alternatively, this file may be used under the Apache License, Version 2.0 (the 

 "Apache License"); you may not use this file except in compliance with the 

 Apache License. You may obtain a copy of the Apache License at 

 http://www.apache.org/licenses/LICENSE-2.0.

 Unless required by applicable law or agreed to in writing, software distributed

 under the Apache License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES

 OR CONDITIONS OF ANY KIND, either express or implied. See the Apache License for

 the specific language governing permissions and limitations under the License.

   Version: <VERSION>  Build: <BUILDNUMBER>

   Copyright (c) <COPYRIGHTYEAR> Audiokinetic Inc.

 *******************************************************************************/

 #pragma once

 #include <AK/Tools/Common/AkAssert.h>

 #include <AK/SoundEngine/Common/AkTypes.h>

 //#include <sys/atomics.h>

 #include <time.h>

 #include <stdlib.h>

 #include <stdio.h>

 namespace AKPLATFORM

 {

     // Atomic Operations

     // ------------------------------------------------------------------

     /// Platform Independent Helper

     inline AkInt32 AkInterlockedIncrement(AkAtomic32 * pValue)

     {

         return __sync_add_and_fetch(pValue,1);

     }

     /// Platform Independent Helper

     inline AkInt32 AkInterlockedDecrement(AkAtomic32 * pValue)

     {

         return __sync_sub_and_fetch(pValue,1);

     }

     AkForceInline bool AkInterlockedCompareExchange(volatile AkAtomic32* io_pDest, AkInt32 in_newValue, AkInt32 in_expectedOldVal)

     {

         return __sync_bool_compare_and_swap(io_pDest, in_expectedOldVal, in_newValue);

     }

     AkForceInline bool AkInterlockedCompareExchange(volatile AkAtomic64* io_pDest, AkInt64 in_newValue, AkInt64 in_expectedOldVal)

     {

         return __sync_bool_compare_and_swap(io_pDest, in_expectedOldVal, in_newValue);

     }

     inline void AkMemoryBarrier()

     {

         __sync_synchronize();

     }

     // Time functions

     // ------------------------------------------------------------------

     /// Platform Independent Helper

     inline void PerformanceCounter( AkInt64 * out_piLastTime )

     {

         struct timespec clockNow;

         clock_gettime(CLOCK_MONOTONIC, &clockNow);

         *out_piLastTime = ((clockNow.tv_sec + clockNow.tv_nsec/ 1000000000.0) * CLOCKS_PER_SEC);

     }

     /// Platform Independent Helper

     inline void PerformanceFrequency( AkInt64 * out_piFreq )

     {

         // TO DO ANDROID ... is there something better

         *out_piFreq = CLOCKS_PER_SEC;

     }

     template<class destType, class srcType>

     inline size_t AkSimpleConvertString( destType* in_pdDest, const srcType* in_pSrc, size_t in_MaxSize, size_t destStrLen(const destType *),  size_t srcStrLen(const srcType *) )

     { 

         size_t i;

         size_t lenToCopy = srcStrLen(in_pSrc);

         lenToCopy = (lenToCopy > in_MaxSize-1) ? in_MaxSize-1 : lenToCopy;

         for(i = 0; i < lenToCopy; i++)

         {

             in_pdDest[i] = (destType) in_pSrc[i];

         }

         in_pdDest[lenToCopy] = (destType)0;

         return lenToCopy;

     }

     #define CONVERT_UTF16_TO_CHAR( _astring_, _charstring_ ) \

         _charstring_ = (char*)AkAlloca( (1 + AKPLATFORM::AkUtf16StrLen((const AkUtf16*)_astring_)) * sizeof(char) ); \

         AK_UTF16_TO_CHAR( _charstring_, (const AkUtf16*)_astring_, AKPLATFORM::AkUtf16StrLen((const AkUtf16*)_astring_)+1 ) 

     #define AK_UTF16_TO_CHAR(   in_pdDest, in_pSrc, in_MaxSize )    AKPLATFORM::AkSimpleConvertString( in_pdDest, in_pSrc, in_MaxSize, strlen, AKPLATFORM::AkUtf16StrLen )

     #define AK_UTF16_TO_OSCHAR( in_pdDest, in_pSrc, in_MaxSize )    AKPLATFORM::AkSimpleConvertString( in_pdDest, in_pSrc, in_MaxSize, strlen, AKPLATFORM::AkUtf16StrLen )

     #define AK_UTF16_TO_WCHAR(  in_pdDest, in_pSrc, in_MaxSize )    AKPLATFORM::AkSimpleConvertString( in_pdDest, in_pSrc, in_MaxSize, wcslen, AKPLATFORM::AkUtf16StrLen )

     #define AK_CHAR_TO_UTF16(   in_pdDest, in_pSrc, in_MaxSize )    AKPLATFORM::AkSimpleConvertString( in_pdDest, in_pSrc, in_MaxSize, AKPLATFORM::AkUtf16StrLen, strlen )

     #define AK_OSCHAR_TO_UTF16( in_pdDest, in_pSrc, in_MaxSize )    AKPLATFORM::AkSimpleConvertString( in_pdDest, in_pSrc, in_MaxSize, AKPLATFORM::AkUtf16StrLen, strlen )

     #define AK_WCHAR_TO_UTF16(  in_pdDest, in_pSrc, in_MaxSize )    AKPLATFORM::AkSimpleConvertString( in_pdDest, in_pSrc, in_MaxSize, AKPLATFORM::AkUtf16StrLen, wcslen )

     /// Stack allocations.

     #define AkAlloca( _size_ ) __builtin_alloca( _size_ )

 }