mmhais/a3facl/src/buffersource/logicalbuffersource.cpp
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     1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // Name        : logicalbuffersource.cpp
       
    15 // Part of     : ACL Logical Layer
       
    16 //
       
    17 
       
    18 
       
    19 
       
    20 #include "logicalbuffersource.h"
       
    21 #include <a3f/audioprocessingunittypeuids.h>
       
    22 #include <ecom/implementationproxy.h> // For making it ECom plugin
       
    23 
       
    24 // Map the interface implementation UIDs to implementation factory functions
       
    25 const TImplementationProxy ImplementationTable[] =
       
    26 	{
       
    27 	IMPLEMENTATION_PROXY_ENTRY(KMmfBufferSourceUid,  CLogicalBufferSource::NewL),
       
    28 	};
       
    29 
       
    30 // Exported proxy for instantiation method resolution.
       
    31 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
       
    32 	{
       
    33 	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
       
    34 	return ImplementationTable;
       
    35 	}
       
    36 // ---------------------------------------------------------------------------
       
    37 // Constructor
       
    38 // ---------------------------------------------------------------------------
       
    39 //
       
    40 CLogicalBufferSource::CLogicalBufferSource(TAny* aParam) : CAudioProcessingUnit(aParam)
       
    41 	{
       
    42 	TRACE_CREATE();
       
    43 	DP_CONTEXT(CLogicalBufferSource::CLogicalBufferSource *CD1*, CtxDevSound, DPLOCAL);
       
    44 	DP_IN();
       
    45 	DP_OUT();
       
    46 	}
       
    47 
       
    48 // ---------------------------------------------------------------------------
       
    49 // Factory method
       
    50 // ---------------------------------------------------------------------------
       
    51 //
       
    52 CLogicalBufferSource* CLogicalBufferSource::NewL(TAny* aParameters)
       
    53 	{
       
    54 	DP_STATIC_CONTEXT(CLogicalBufferSource::NewL *CD0*, CtxDevSound, DPLOCAL);
       
    55 	DP_IN();
       
    56 	CLogicalBufferSource* self = new(ELeave)CLogicalBufferSource(aParameters);
       
    57 	CleanupStack::PushL(self);
       
    58 	self->ConstructL();
       
    59 	CleanupStack::Pop(self);
       
    60 	DP0_RET(self, "0x%x");
       
    61 	}
       
    62 
       
    63 // ---------------------------------------------------------------------------
       
    64 // Second phase constructor
       
    65 // ---------------------------------------------------------------------------
       
    66 //
       
    67 void CLogicalBufferSource::ConstructL()
       
    68 	{
       
    69 	DP_CONTEXT(CLogicalBufferSource::ConstructL *CD1*, CtxDevSound, DPLOCAL);
       
    70 	DP_IN();
       
    71 	DP_OUT();
       
    72 	}
       
    73 
       
    74 // ---------------------------------------------------------------------------
       
    75 // Destructor
       
    76 // ---------------------------------------------------------------------------
       
    77 //
       
    78 CLogicalBufferSource::~CLogicalBufferSource()
       
    79 	{
       
    80 	DP_CONTEXT(CLogicalBufferSource::~CLogicalBufferSource *CD1*, CtxDevSound, DPLOCAL);
       
    81 	DP_IN();
       
    82 	DP_OUT();
       
    83 	}
       
    84 
       
    85 // from MMMFBufferSource
       
    86 // ---------------------------------------------------------------------------
       
    87 // CLogicalBufferSource::SetDataSupplier
       
    88 // ---------------------------------------------------------------------------
       
    89 //  
       
    90 TInt CLogicalBufferSource::SetDataSupplier(MMMFAudioDataSupplier& aSupplier)
       
    91 	{
       
    92 	DP_CONTEXT(CLogicalBufferSource::SetDataSupplier *CD1*, CtxDevSound, DPLOCAL);
       
    93 	DP_IN();
       
    94 	TInt err = KErrNone;
       
    95 	iSupplier = &aSupplier;
       
    96 	DP0_RET(err, "%d");
       
    97 	}
       
    98 
       
    99 // ---------------------------------------------------------------------------
       
   100 // CLogicalBufferSource::BufferFilled
       
   101 // ---------------------------------------------------------------------------
       
   102 //  
       
   103 TInt CLogicalBufferSource::BufferFilled(CMMFBuffer* aBuffer)
       
   104 	{
       
   105 	DP_CONTEXT(CLogicalBufferSource::BufferFilled *CD1*, CtxDevSound, DPLOCAL);
       
   106 	DP_IN();
       
   107 	TInt err = KErrNone;
       
   108 	err = iAdaptationBufferSource->BufferFilled(aBuffer);
       
   109 	DP0_RET(err, "%d");
       
   110 	}
       
   111 
       
   112 // ---------------------------------------------------------------------------
       
   113 // CLogicalBufferSource::BuffersDiscarded
       
   114 // ---------------------------------------------------------------------------
       
   115 //  
       
   116 TInt CLogicalBufferSource::BuffersDiscarded()
       
   117 	{
       
   118 	DP_CONTEXT(CLogicalBufferSource::BuffersDiscarded *CD1*, CtxDevSound, DPLOCAL);
       
   119 	DP_IN();
       
   120 	TInt err = KErrNone;
       
   121 	err = iAdaptationBufferSource->BuffersDiscarded();
       
   122 	DP0_RET(err, "%d");
       
   123 	}
       
   124 
       
   125 // ---------------------------------------------------------------------------
       
   126 // CLogicalBufferSource::IsTypeOf
       
   127 // ---------------------------------------------------------------------------
       
   128 //  
       
   129 TBool CLogicalBufferSource::IsTypeOf(TUid aTypeId) const
       
   130 	{
       
   131 	DP_CONTEXT(CLogicalBufferSource::IsTypeOf *CD1*, CtxDevSound, DPLOCAL);
       
   132 	DP_IN();
       
   133 	TBool result = EFalse;
       
   134 	if (iType == aTypeId)
       
   135 		{
       
   136 		result = ETrue;
       
   137 		}
       
   138 	DP0_RET(result, "%d");
       
   139 	}
       
   140 
       
   141 // ---------------------------------------------------------------------------
       
   142 // CLogicalBufferSource::Interface
       
   143 // ---------------------------------------------------------------------------
       
   144 // 
       
   145 TAny* CLogicalBufferSource::Interface(TUid aType)
       
   146 	{
       
   147 	DP_CONTEXT(CLogicalBufferSource::Interface *CD1*, CtxDevSound, DPLOCAL);
       
   148 	DP_IN();
       
   149 	TAny* interface = NULL;
       
   150 	if(aType==KUidMmfBufferSource)
       
   151 		{
       
   152 		interface = static_cast<MMMFBufferSource*>(this);
       
   153 		}
       
   154 	DP0_RET(interface, "%d");
       
   155 	}
       
   156 
       
   157 // From MMMFAudioDataSupplier
       
   158 // ---------------------------------------------------------------------------
       
   159 // CLogicalBufferSource::BufferToBeFilled
       
   160 // ---------------------------------------------------------------------------
       
   161 // 
       
   162 void CLogicalBufferSource::BufferToBeFilled(MMMFBufferSource* /*aSource*/, CMMFBuffer* aBuffer)
       
   163 	{
       
   164 	iSupplier->BufferToBeFilled(this, aBuffer);
       
   165 	}
       
   166 
       
   167 // ---------------------------------------------------------------------------
       
   168 // CLogicalBufferSource::DiscardBuffers
       
   169 // ---------------------------------------------------------------------------
       
   170 // 
       
   171 void CLogicalBufferSource::DiscardBuffers(MMMFBufferSource* /*aSource*/)
       
   172 	{
       
   173 	iSupplier->DiscardBuffers(this);
       
   174 	}
       
   175 
       
   176 // end of file