_ak_bytes_mem_8h

Wwise SDK 2019.2.15

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

 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.

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

 // AkBytesMem.h

 /// \file 

 /// IReadBytes / IWriteBytes implementation on a growing memory buffer. This

 /// version uses the AK::MemoryMgr allocator.

 #pragma once

 #include <AK/IBytes.h>

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

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

 namespace AK

 {

     class ReadBytesMem

         : public AK::IReadBytes

     {

     public:

         AKSOUNDENGINE_API ReadBytesMem();

         AKSOUNDENGINE_API ReadBytesMem(

             const void * in_pBytes, 

             AkInt32 in_cBytes

             );

         AKSOUNDENGINE_API virtual ~ReadBytesMem();

         // IReadBytes implementation

         AKSOUNDENGINE_API virtual bool ReadBytes(

             void * in_pData, 

             AkInt32 in_cBytes, 

             AkInt32 & out_cRead

             );

         // Public methods

         AKSOUNDENGINE_API void Attach(

             const void * in_pBytes, 

             AkInt32 in_cBytes

             );

     private:

         AkInt32   m_cBytes;

         const AkUInt8 * m_pBytes;

         AkInt32   m_cPos;

     };

     class WriteBytesMem

         : public AK::IWriteBuffer

     {

     public:

         AKSOUNDENGINE_API WriteBytesMem();

         AKSOUNDENGINE_API virtual ~WriteBytesMem();

         // IWriteBytes implementation

         AKSOUNDENGINE_API virtual bool WriteBytes(

             const void * in_pData, 

             AkInt32 in_cBytes, 

             AkInt32& out_cWritten);

         // IWriteBuffer implementation

         AKSOUNDENGINE_API virtual bool Reserve(

             AkInt32 in_cBytes

             );

         AKSOUNDENGINE_API virtual AkInt32 Count() const;

         AKSOUNDENGINE_API virtual void SetCount(

             AkInt32 in_cBytes

             );

         AKSOUNDENGINE_API AkInt32 Size() const;

         AKSOUNDENGINE_API virtual AkUInt8 * Bytes() const;

         AKSOUNDENGINE_API virtual AkUInt8 * Detach();

         AKSOUNDENGINE_API virtual void Clear();

         // Public methods

         AKSOUNDENGINE_API void SetMemPool( AkMemPoolId in_pool );

         template<class T>

         bool Write(const T & in_data)

         {

             AkInt32 cPos = m_cPos;

             AkInt32 cNewPos = cPos + sizeof(T);

             if ((m_cBytes >= cNewPos) || Grow(cNewPos))

             {

                 AK::WriteUnaligned<T>(m_pBytes + cPos, in_data);

                 m_cPos = cNewPos;

                 return true;

             }

             else

                 return false;

         }

     private:

         bool Grow(

             AkInt32 in_cBytes

         );

         AkInt32     m_cBytes;

         AkUInt8 *   m_pBytes;

         AkInt32 m_cPos;

         AkMemPoolId m_pool;

     };

 }