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include/AK/SoundEngine/Common/AkCommonDefs.h

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00001 
00002 //
00003 // Copyright (c) 2006 Audiokinetic Inc. / All Rights Reserved
00004 //
00006 
00007 // AkCommonDefs.h
00008 
00011 
00012 
00013 #ifndef _AK_COMMON_DEFS_H_
00014 #define _AK_COMMON_DEFS_H_
00015 
00016 #include <AK/SoundEngine/Common/AkSpeakerConfig.h>
00017 #include <AK/SoundEngine/Common/AkSpeakerVolumes.h>
00018 
00019 //-----------------------------------------------------------------------------
00020 // AUDIO DATA FORMAT
00021 //-----------------------------------------------------------------------------
00022 
00023 // Per-platform standard/largest setup definitions.
00024 #if defined(AK_71AUDIO)
00025 #define AK_SPEAKER_SETUP_DEFAULT_PLANE          (AK_SPEAKER_SETUP_7POINT1)  ///< All speakers on the plane, supported on this platform.
00026 #define AK_SUPPORTED_STANDARD_CHANNEL_MASK      (AK_SPEAKER_SETUP_ALL_SPEAKERS) ///< Platform supports all standard channels.
00027 #elif defined(AK_LFECENTER) && defined(AK_REARCHANNELS)
00028 #define AK_SPEAKER_SETUP_DEFAULT_PLANE          (AK_SPEAKER_SETUP_5POINT1)  ///< All speakers on the plane, supported on this platform.
00029 #define AK_SUPPORTED_STANDARD_CHANNEL_MASK      (AK_SPEAKER_SETUP_DEFAULT_PLANE)    ///< Platform supports 5.1
00030 #elif defined(AK_REARCHANNELS)
00031     #ifdef AK_WII
00032         #define AK_SPEAKER_SETUP_DEFAULT_PLANE  (AK_SPEAKER_SETUP_DPL2 | AK_SPEAKER_FRONT_CENTER)   ///< All speakers on the plane, supported on this platform.
00033     #else
00034         #define AK_SPEAKER_SETUP_DEFAULT_PLANE  (AK_SPEAKER_SETUP_4 | AK_SPEAKER_FRONT_CENTER)      ///< All speakers on the plane, supported on this platform.
00035     #endif
00036     #define AK_SUPPORTED_STANDARD_CHANNEL_MASK  (AK_SPEAKER_SETUP_DEFAULT_PLANE)    ///< Most complete speaker configuration supported on this platform.
00037 #else 
00038 #define AK_SPEAKER_SETUP_DEFAULT_PLANE          (AK_SPEAKER_SETUP_STEREO | AK_SPEAKER_FRONT_CENTER) ///< All speakers on the plane, supported on this platform.
00039 #define AK_SUPPORTED_STANDARD_CHANNEL_MASK      (AK_SPEAKER_SETUP_STEREO)   ///< Most complete speaker configuration supported on this platform.
00040 #endif
00041 
00042 // Channel mask helpers.
00043 namespace AK
00044 {
00047     AkForceInline bool HasLFE( AkChannelMask in_uChannelMask )
00048     { 
00049         return ( in_uChannelMask & AK_SPEAKER_LOW_FREQUENCY ) > 0; 
00050     }
00051 
00056     AkForceInline bool HasCenter( AkChannelMask in_uChannelMask )
00057     { 
00058         // All supported non-mono configurations have an AK_SPEAKER_FRONT_LEFT.
00059         return ( in_uChannelMask & AK_SPEAKER_FRONT_CENTER ) > 0; 
00060     }
00061 
00065     AkForceInline AkUInt32 GetNumberOfAnglesForConfig( AkChannelMask in_uChannelMask )
00066     {
00067         AKASSERT( ( in_uChannelMask & ~AK_SPEAKER_SETUP_DEFAULT_PLANE ) == 0 );
00068 
00069         // LFE is irrelevant.
00070         in_uChannelMask &= ~AK_SPEAKER_LOW_FREQUENCY;
00071         // Center speaker is always in the center and thus does not require an angle.
00072         in_uChannelMask &= ~AK_SPEAKER_FRONT_CENTER;
00073         // We should have complete pairs at this point, unless there is a speaker at 180 degrees, 
00074         // in which case we need one more angle to specify it.
00075         AKASSERT( ( in_uChannelMask & AK_SPEAKER_BACK_CENTER ) || ( ( AK::GetNumNonZeroBits( in_uChannelMask ) % 2 ) == 0 ) );
00076         return AK::GetNumNonZeroBits( in_uChannelMask ) >> 1;
00077     }
00078 }
00079 
00080 // Audio data format.
00081 // ------------------------------------------------
00082 
00083 const AkDataTypeID      AK_INT              = 0;        
00084 const AkDataTypeID      AK_FLOAT            = 1;        
00085 
00086 const AkDataInterleaveID AK_INTERLEAVED     = 0;        
00087 const AkDataInterleaveID AK_NONINTERLEAVED  = 1;        
00088 
00089 // Native format currently the same on all supported platforms, may become platform specific in the future
00090 const AkUInt32 AK_LE_NATIVE_BITSPERSAMPLE  = 32;                    
00091 const AkUInt32 AK_LE_NATIVE_SAMPLETYPE = AK_FLOAT;                  
00092 const AkUInt32 AK_LE_NATIVE_INTERLEAVE = AK_NONINTERLEAVED;         
00093 
00095 enum AkChannelConfigType
00096 {
00097     AK_ChannelConfigType_Anonymous          = 0x0,  // Channel mask == 0 and channels are anonymous.
00098     AK_ChannelConfigType_Standard           = 0x1,  // Channels must be identified with standard defines in AkSpeakerConfigs.   
00099     AK_ChannelConfigType_Ambisonic          = 0x2   // Ambisonic. Channel mask == 0 and channels follow standard ambisonic order.
00100 };
00101 
00103 struct AkChannelConfig
00104 {
00105     // Channel config: 
00106     // - uChannelMask is a bit field, whose channel identifiers depend on AkChannelConfigType (up to 20). Channel bits are defined in AkSpeakerConfig.h.
00107     // - eConfigType is a code that completes the identification of channels by uChannelMask.
00108     // - uNumChannels is the number of channels, identified (deduced from channel mask) or anonymous (set directly). 
00109     AkUInt32    uNumChannels    :8; 
00110     AkUInt32    eConfigType     :4; 
00111     AkUInt32    uChannelMask    :20;
00112 
00114     AkForceInline AkChannelConfig()
00115         : uNumChannels( 0 )
00116         , eConfigType( 0 )
00117         , uChannelMask( 0 )
00118     {
00119     }
00120 
00122     AkForceInline AkChannelConfig( AkChannelMask in_uChannelMask )
00123     {
00124         SetStandard( in_uChannelMask );
00125     }
00126     
00128     AkForceInline bool operator!=( AkUInt32 in_uBitField )
00129     {
00130         return ( *((AkUInt32*)this) != in_uBitField );
00131     }
00132 
00134     AkForceInline void Clear()
00135     {
00136         uNumChannels    = 0;
00137         eConfigType     = 0;
00138         uChannelMask    = 0;
00139     }
00140 
00142     AkForceInline void SetStandard( AkUInt32 in_uChannelMask )
00143     {
00144         uNumChannels    = AK::GetNumNonZeroBits( in_uChannelMask );
00145         eConfigType     = AK_ChannelConfigType_Standard;
00146         uChannelMask    = in_uChannelMask;
00147     }
00148     
00150     AkForceInline void SetStandardOrAnonymous( AkUInt32 in_uNumChannels, AkUInt32 in_uChannelMask )
00151     {
00152         AKASSERT( in_uChannelMask == 0 || in_uNumChannels == AK::GetNumNonZeroBits( in_uChannelMask ) );
00153         uNumChannels    = in_uNumChannels;
00154         eConfigType     = ( in_uChannelMask ) ? AK_ChannelConfigType_Standard : AK_ChannelConfigType_Anonymous;
00155         uChannelMask    = in_uChannelMask;
00156     }
00157 
00159     AkForceInline void SetAnonymous( AkUInt32 in_uNumChannels )
00160     {
00161         uNumChannels    = in_uNumChannels;
00162         eConfigType     = AK_ChannelConfigType_Anonymous;
00163         uChannelMask    = 0;
00164     }
00165 
00167     AkForceInline void SetAmbisonic( AkUInt32 in_uNumChannels )
00168     {
00169         uNumChannels    = in_uNumChannels;
00170         eConfigType     = AK_ChannelConfigType_Ambisonic;
00171         uChannelMask    = 0;
00172     }
00173 
00175     AkForceInline bool IsValid()
00176     {
00177         return uNumChannels != 0;
00178     }
00179 
00181     AkForceInline void Serialize( AkUInt32 & out_uChannelConfig ) const
00182     {
00183         out_uChannelConfig = uNumChannels | ( eConfigType << 8 ) | ( uChannelMask << 12 );
00184     }
00185     
00187     AkForceInline void Deserialize( AkUInt32 in_uChannelConfig )
00188     {
00189         uNumChannels = in_uChannelConfig & 0x000000ff;
00190         eConfigType = ( in_uChannelConfig >> 8 ) & 0x0000000f;
00191         uChannelMask = ( in_uChannelConfig >> 12 ) & 0x000fffff;
00192     }
00193 
00195     AkForceInline AkChannelConfig RemoveLFE() const
00196     {
00197         AkChannelConfig newConfig = *this;
00198 #ifdef AK_LFECENTER
00199         AkUInt32 uNewChannelMask = newConfig.uChannelMask & ~AK_SPEAKER_LOW_FREQUENCY;
00200         AkUInt32 uNumLFEChannel = ( newConfig.uChannelMask - uNewChannelMask ) >> 3; // 0 or 1
00201         AKASSERT( uNumLFEChannel == 0 || uNumLFEChannel == 1 );
00202         newConfig.uNumChannels -= uNumLFEChannel;
00203         newConfig.uChannelMask = uNewChannelMask;
00204 #endif
00205         return newConfig;
00206     }
00207 
00209     AkForceInline AkChannelConfig RemoveCenter() const
00210     {
00211         AkChannelConfig newConfig = *this;
00212 #ifdef AK_LFECENTER
00213         AkUInt32 uNewChannelMask = newConfig.uChannelMask & ~AK_SPEAKER_FRONT_CENTER;
00214         AkUInt32 uNumCenterChannel = ( newConfig.uChannelMask - uNewChannelMask ) >> 2; // 0 or 1.
00215         AKASSERT( uNumCenterChannel == 0 || uNumCenterChannel == 1 );
00216         newConfig.uNumChannels -= uNumCenterChannel;
00217         newConfig.uChannelMask = uNewChannelMask;
00218 #endif
00219         return newConfig;
00220     }
00221 
00223     AkForceInline bool operator==( const AkChannelConfig & in_other ) const
00224     {
00225         return uNumChannels == in_other.uNumChannels
00226             && eConfigType == in_other.eConfigType
00227             && uChannelMask == in_other.uChannelMask;
00228     }
00229 
00231     AkForceInline bool operator!=( const AkChannelConfig & in_other ) const
00232     {
00233         return uNumChannels != in_other.uNumChannels
00234             || eConfigType != in_other.eConfigType
00235             || uChannelMask != in_other.uChannelMask;
00236     }
00237 
00240     AkForceInline bool IsChannelConfigSupported() const
00241     {
00242         if ( eConfigType == AK_ChannelConfigType_Standard )
00243         {
00244             bool bIsSupported = true;
00245             switch ( uChannelMask )
00246             {
00247             case AK_SPEAKER_SETUP_MONO:
00248             case AK_SPEAKER_SETUP_STEREO:
00249 #ifdef AK_LFECENTER
00250             case AK_SPEAKER_SETUP_0POINT1:
00251             case AK_SPEAKER_SETUP_1POINT1:
00252             case AK_SPEAKER_SETUP_2POINT1:
00253             case AK_SPEAKER_SETUP_3STEREO:
00254             case AK_SPEAKER_SETUP_3POINT1:
00255 #ifdef AK_REARCHANNELS
00256             case AK_SPEAKER_SETUP_4:
00257             case AK_SPEAKER_SETUP_4POINT1:
00258             case AK_SPEAKER_SETUP_5:
00259             case AK_SPEAKER_SETUP_5POINT1:
00260 #endif
00261 #endif
00262 #ifdef AK_71AUDIO
00263             case AK_SPEAKER_SETUP_7:
00264             case AK_SPEAKER_SETUP_7POINT1:
00265 #endif // AK_71AUDIO
00266                 break;
00267             default:
00268                 bIsSupported = false;
00269             }
00270             return bIsSupported;
00271         }
00272         else if ( eConfigType == AK_ChannelConfigType_Anonymous )
00273         {
00274             return true;
00275         }
00276         else
00277         {
00278             // TODO
00279             AKASSERT( eConfigType == AK_ChannelConfigType_Ambisonic );
00280             return false;
00281         }
00282     }
00283 
00286     AkForceInline bool HasLFE() const
00287     {
00288 #ifdef AK_LFECENTER
00289         return AK::HasLFE( uChannelMask ); 
00290 #else
00291         return false;
00292 #endif
00293     }
00294 
00299     AkForceInline bool HasCenter() const
00300     { 
00301 #ifdef AK_LFECENTER
00302         return AK::HasCenter( uChannelMask ); 
00303 #else
00304         return false;
00305 #endif
00306     }
00307 };
00308 
00310 struct AkAudioFormat
00311 {
00312     AkUInt32    uSampleRate;        
00313 
00314     AkChannelConfig channelConfig;  
00315 
00316     AkUInt32    uBitsPerSample  :6; 
00317     AkUInt32    uBlockAlign     :10;
00318     AkUInt32    uTypeID         :2; 
00319     AkUInt32    uInterleaveID   :1; 
00320     
00323     AkForceInline AkUInt32 GetNumChannels() const
00324     {
00325         return channelConfig.uNumChannels;
00326     }
00327 
00330     AkForceInline bool HasLFE() const
00331     { 
00332         return channelConfig.HasLFE(); 
00333     }
00334 
00339     AkForceInline bool HasCenter() const
00340     { 
00341         return channelConfig.HasCenter(); 
00342     }
00343 
00346     AkForceInline AkUInt32 GetBitsPerSample()   const                       
00347     { 
00348         return uBitsPerSample;
00349     }
00350 
00353     AkForceInline AkUInt32 GetBlockAlign() const
00354     {
00355         return uBlockAlign;
00356     }
00357 
00360     AkForceInline AkUInt32 GetTypeID() const
00361     {
00362         return uTypeID;
00363     }
00364 
00367     AkForceInline AkUInt32 GetInterleaveID() const
00368     {
00369         return uInterleaveID;
00370     }
00371 
00374     void SetAll(
00375         AkUInt32    in_uSampleRate,     
00376         AkChannelConfig in_channelConfig,   
00377         AkUInt32    in_uBitsPerSample,  
00378         AkUInt32    in_uBlockAlign,     
00379         AkUInt32    in_uTypeID,         
00380         AkUInt32    in_uInterleaveID    
00381         )
00382     {
00383         uSampleRate     = in_uSampleRate;
00384         channelConfig   = in_channelConfig;
00385         uBitsPerSample  = in_uBitsPerSample;
00386         uBlockAlign     = in_uBlockAlign;
00387         uTypeID         = in_uTypeID;
00388         uInterleaveID   = in_uInterleaveID;
00389     }
00390 
00393     AkForceInline bool IsChannelConfigSupported() const
00394     {
00395         return channelConfig.IsChannelConfigSupported();
00396     }
00397 
00398 };
00399 
00400 // Build a 32 bit class identifier based on the Plug-in type,
00401 // CompanyID and PluginID.
00402 //
00403 // Parameters:
00404 //   - in_pluginType: A value from enum AkPluginType (4 bits)
00405 //   - in_companyID: CompanyID as defined in the Plug-in's XML file (12 bits)
00406 //          * 0-63: Reserved for Audiokinetic
00407 //          * 64-255: Reserved for clients' in-house Plug-ins
00408 //          * 256-4095: Assigned by Audiokinetic to third-party plug-in developers
00409 //   - in_pluginID: PluginID as defined in the Plug-in's XML file (16 bits)
00410 //          * 0-65535: Set freely by the Plug-in developer
00411 #define AKMAKECLASSID( in_pluginType, in_companyID, in_pluginID ) \
00412     ( (in_pluginType) + ( (in_companyID) << 4 ) + ( (in_pluginID) << ( 4 + 12 ) ) )
00413 
00414 #define AKGETPLUGINTYPEFROMCLASSID( in_classID ) ( (in_classID) & AkPluginTypeMask )
00415 #define AKGETCOMPANYIDFROMCLASSID( in_classID ) ( ( (in_classID) & 0x0000FFF0 ) >> 4 )
00416 #define AKGETPLUGINIDFROMCLASSID( in_classID ) ( ( (in_classID) & 0xFFFF0000 ) >> ( 4 + 12 ) )
00417 
00418 #define CODECID_FROM_PLUGINID AKGETPLUGINIDFROMCLASSID
00419 
00420 
00421 namespace AK
00422 {
00424     class IAkMetering
00425     {
00426     protected:
00428         virtual ~IAkMetering(){}
00429 
00430     public:
00431 
00436         virtual AK::SpeakerVolumes::ConstVectorPtr GetPeak() = 0;
00437 
00441         virtual AK::SpeakerVolumes::ConstVectorPtr GetTruePeak() = 0;
00442 
00447         virtual AK::SpeakerVolumes::ConstVectorPtr GetRMS() = 0;
00448         
00452         virtual AkReal32 GetKWeightedPower() = 0;
00453     };
00454 }
00455 
00456 // Audio buffer.
00457 // ------------------------------------------------
00458 
00467 #if defined AK_WII_FAMILY_HW || defined(AK_3DS)
00468 typedef AkInt16 AkSampleType;   
00469 #else
00470 typedef AkReal32 AkSampleType;  
00471 #endif
00472 
00477 class AkAudioBuffer
00478 {
00479 public:
00480 
00482     AkAudioBuffer() 
00483     { 
00484         Clear(); 
00485     }
00486 
00488     AkForceInline void ClearData()
00489     {
00490 #if !defined(AK_WII_FAMILY_HW) && !defined(AK_3DS)
00491         pData = NULL;
00492 #else
00493         arData[0] = arData[1] = NULL;       
00494 #endif
00495     }
00496 
00498     AkForceInline void Clear()
00499     {
00500         ClearData();
00501         uValidFrames        = 0;
00502         uMaxFrames          = 0;
00503         eState              = AK_DataNeeded;
00504     }
00505     
00507 
00508 
00509     AkForceInline AkUInt32 NumChannels()
00510     {
00511         return channelConfig.uNumChannels;
00512     }
00513 
00515     AkForceInline bool HasLFE()
00516     { 
00517         return channelConfig.HasLFE(); 
00518     }
00519 
00520     AkForceInline AkChannelConfig GetChannelConfig() const { return channelConfig; }
00521 
00523 
00525 
00526 
00527 
00528 
00529 
00530 
00531 #if !defined(AK_3DS) && !defined(AK_WII_FAMILY_HW)
00532     AkForceInline void * GetInterleavedData()
00533     { 
00534         return pData; 
00535     }
00536 
00538     inline void AttachInterleavedData( void * in_pData, AkUInt16 in_uMaxFrames, AkUInt16 in_uValidFrames, AkChannelConfig in_channelConfig )
00539     { 
00540         pData = in_pData; 
00541         uMaxFrames = in_uMaxFrames; 
00542         uValidFrames = in_uValidFrames; 
00543         channelConfig = in_channelConfig; 
00544     }
00545 #endif
00546 
00547 
00549 
00550 
00552     AkForceInline bool HasData() 
00553     {
00554 #if !defined(AK_WII_FAMILY_HW) && !defined(AK_3DS)
00555         return ( NULL != pData ); 
00556 #else
00557         return ( NULL != arData[0] );
00558 #endif
00559     }
00560 
00563     static inline AkUInt32 StandardToPipelineIndex( 
00564         AkChannelConfig 
00565 #ifdef AK_LFECENTER
00566                         in_channelConfig        
00567 #endif
00568         , AkUInt32      in_uChannelIdx          
00569         )
00570     {
00571 #ifdef AK_LFECENTER
00572         if ( in_channelConfig.HasLFE() )
00573         {
00574             AKASSERT( in_channelConfig.eConfigType == AK_ChannelConfigType_Standard );  // in_channelConfig.HasLFE() would not have returned true otherwise.
00575             AKASSERT( AK::GetNumNonZeroBits( in_channelConfig.uChannelMask ) );
00576             AkUInt32 uIdxLFE = AK::GetNumNonZeroBits( ( AK_SPEAKER_LOW_FREQUENCY - 1 ) & in_channelConfig.uChannelMask );
00577             if ( in_uChannelIdx == uIdxLFE )
00578                 return in_channelConfig.uNumChannels - 1;
00579             else if ( in_uChannelIdx > uIdxLFE )
00580                 return in_uChannelIdx - 1;
00581         }
00582 #endif
00583         return in_uChannelIdx;
00584     }
00585 
00595     inline AkSampleType * GetChannel(
00596         AkUInt32 in_uIndex      
00597         )
00598     {
00599         AKASSERT( in_uIndex < NumChannels() );
00600 #if defined (AK_WII_FAMILY_HW) || defined(AK_3DS)
00601         return (AkSampleType*)arData[in_uIndex];
00602 #else
00603         return (AkSampleType*)((AkUInt8*)(pData) + ( in_uIndex * sizeof(AkSampleType) * MaxFrames() ));
00604 #endif
00605     }
00606 
00611     inline AkSampleType * GetLFE()
00612     {
00613         if ( channelConfig.uChannelMask & AK_SPEAKER_LOW_FREQUENCY )
00614             return GetChannel( NumChannels()-1 );
00615         
00616         return (AkSampleType*)0;
00617     }
00618 
00621     void ZeroPadToMaxFrames()
00622     {
00623         // Zero out all channels.
00624         const AkUInt32 uNumChannels = NumChannels();
00625         const AkUInt32 uNumZeroFrames = MaxFrames()-uValidFrames;
00626         if ( uNumZeroFrames )
00627         {
00628             for ( AkUInt32 i = 0; i < uNumChannels; ++i )
00629             {
00630                 AKPLATFORM::AkMemSet( GetChannel(i) + uValidFrames, 0, uNumZeroFrames * sizeof(AkSampleType) );
00631             }
00632             uValidFrames = MaxFrames();
00633         }
00634     }
00635 
00636 #if !defined(AK_3DS) && !defined(AK_WII_FAMILY_HW)
00637 
00638     AkForceInline void AttachContiguousDeinterleavedData( void * in_pData, AkUInt16 in_uMaxFrames, AkUInt16 in_uValidFrames, AkChannelConfig in_channelConfig )
00639     { 
00640         AttachInterleavedData( in_pData, in_uMaxFrames, in_uValidFrames, in_channelConfig );
00641     }
00643     AkForceInline void * DetachContiguousDeinterleavedData()
00644     {
00645         uMaxFrames = 0; 
00646         uValidFrames = 0; 
00647         channelConfig.Clear();
00648         void * pDataOld = pData;
00649         pData = NULL;
00650         return pDataOld;
00651     }
00652 #endif
00653 
00654 #if defined(_DEBUG) && !defined(AK_WII_FAMILY_HW)
00655     bool CheckValidSamples()
00656     {
00657         // Zero out all channels.
00658         const AkUInt32 uNumChannels = NumChannels();
00659         for ( AkUInt32 i = 0; i < uNumChannels; ++i )
00660         {
00661             AkSampleType * AK_RESTRICT pfChan = GetChannel(i);
00662             if ( pfChan )
00663             {
00664                 for ( AkUInt32 j = 0; j < uValidFrames; j++ )
00665                 {
00666                     AkSampleType fSample = *pfChan++;
00667                     if ( fSample > 4.f )
00668                         return false;
00669                     else if ( fSample < -4.f )
00670                         return false;
00671                 }
00672             }
00673         }
00674 
00675         return true;
00676     }
00677 #endif
00678 
00679 #ifdef AK_PS3
00680 
00681 
00682 
00683     AkForceInline void * GetDataStartDMA()
00684     {
00685         return pData;
00686     }
00687 #endif
00688 
00689 #ifdef __SPU__
00690 
00691 
00692     AkForceInline void CreateFromDMA( void * in_pData, AkUInt16 in_uMaxFrames, AkUInt16 in_uValidFrames, AkChannelConfig in_channelConfig, AKRESULT in_eState )
00693     { 
00694         pData = in_pData; 
00695         uMaxFrames = in_uMaxFrames; 
00696         uValidFrames = in_uValidFrames; 
00697         channelConfig = in_channelConfig; 
00698         eState = in_eState;
00699     }
00700 #endif
00701 
00702 
00703 #if !defined(AK_3DS) && !defined(AK_WII_FAMILY_HW)
00704     void RelocateMedia( AkUInt8* in_pNewMedia,  AkUInt8* in_pOldMedia )
00705     {
00706         AkUIntPtr uMemoryOffset = (AkUIntPtr)in_pNewMedia - (AkUIntPtr)in_pOldMedia;
00707         pData = (void*) (((AkUIntPtr)pData) + uMemoryOffset);
00708     }
00709 #endif
00710 
00711 protected:
00712 #if defined (AK_WII_FAMILY_HW) || defined(AK_3DS)
00713     void *          arData[AK_VOICE_MAX_NUM_CHANNELS];  
00714 #else
00715     void *          pData;              
00716 #endif
00717     AkChannelConfig channelConfig;      
00718 public: 
00719     AKRESULT        eState;             
00720 protected:  
00721     AkUInt16        uMaxFrames;         
00722 
00723 public:
00726     AkForceInline AkUInt16 MaxFrames() { return uMaxFrames; }
00727     
00728     AkUInt16        uValidFrames;       
00729 } AK_ALIGN_DMA;
00730 
00731 #endif // _AK_COMMON_DEFS_H_
00732 

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