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1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // source\server\MmfBtSwCodecDatapath.cpp |
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15 // |
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16 // |
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17 |
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18 #include "mmfBtSwCodecDataPath.h" |
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19 |
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20 CMMFSwCodecDataPath::~CMMFSwCodecDataPath() |
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21 { |
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22 } |
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23 |
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24 /* |
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25 * CycleAudioBufferL |
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26 * |
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27 * Sets up a usable buffer for passing to MMF |
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28 * |
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29 * This method has been written such that it must allocate a new buffer before |
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30 * replacing the existing one. The purpose of this is to force creation of a |
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31 * new buffer. Simply deleting and then re-allocing may result in the same |
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32 * address being used. |
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33 * |
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34 * Only cycles if there is enough memory |
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35 * |
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36 */ |
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37 #ifdef __CYCLE_MMF_DATABUFFERS__ |
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38 CMMFDataBuffer* CMMFSwCodecDataPath::CycleAudioBuffer(CMMFDataBuffer* aBuffer) |
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39 { |
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40 CMMFDataBuffer* buffer = NULL; |
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41 TUint bufferSize = aBuffer->Data().MaxLength(); |
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42 |
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43 #ifdef __USE_MMF_TRANSFERBUFFERS__ |
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44 TRAPD(err, buffer = CreateTransferBufferL(bufferSize, static_cast<CMMFTransferBuffer*>(aBuffer))); |
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45 #else |
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46 TRAPD(err,buffer = CMMFDataBuffer::NewL(bufferSize)); |
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47 |
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48 if (err == KErrNone) |
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49 { |
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50 delete aBuffer; |
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51 } |
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52 #endif |
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53 if (err != KErrNone) |
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54 {//there was a problem creating buffer eg OOM so use same buffer |
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55 buffer = aBuffer; |
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56 } |
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57 |
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58 return buffer; |
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59 |
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60 } |
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61 #endif |
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62 |
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63 /* |
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64 * DoCleanupRHandleBase |
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65 * |
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66 * This method will initially Close the handle and then delete it. |
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67 * |
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68 */ |
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69 #ifdef __USE_MMF_TRANSFERBUFFERS__ |
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70 inline static void DoCleanupRHandleBase(TAny* aRHandleBase) |
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71 { |
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72 ASSERT(aRHandleBase); |
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73 RHandleBase* rHandleBase = STATIC_CAST(RHandleBase*, aRHandleBase); |
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74 TRAPD(error, rHandleBase->Close()); |
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75 delete aRHandleBase; |
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76 } |
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77 |
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78 CMMFTransferBuffer* CMMFSwCodecDataPath::CreateTransferBufferL(TUint aBufferSize, CMMFTransferBuffer* aOldBuffer) |
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79 { |
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80 CMMFTransferBuffer* buffer = NULL; |
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81 |
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82 RTransferBuffer* transBuffer = new (ELeave) RTransferBuffer; |
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83 |
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84 TCleanupItem bufferCleanupItem(DoCleanupRHandleBase, transBuffer); //closes and deletes. |
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85 CleanupStack::PushL(bufferCleanupItem); |
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86 |
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87 RTransferWindow* transWindow = new (ELeave) RTransferWindow; |
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88 |
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89 TCleanupItem windowCleanupItem(DoCleanupRHandleBase, transWindow); //closes and deletes. |
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90 CleanupStack::PushL(windowCleanupItem); |
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91 |
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92 User::LeaveIfError(transBuffer->Create(aBufferSize)); |
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93 User::LeaveIfError(transWindow->Create(aBufferSize)); |
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94 User::LeaveIfError(transWindow->MapInBuffer(*transBuffer)); |
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95 |
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96 buffer = CMMFTransferBuffer::NewL(*transWindow); |
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97 |
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98 delete aOldBuffer; //closes RTransferWindow |
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99 delete iTransferWindow; |
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100 |
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101 if(iTransferBuffer) |
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102 { |
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103 iTransferBuffer->Close(); |
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104 } |
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105 delete iTransferBuffer; |
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106 |
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107 iTransferBuffer = transBuffer; |
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108 iTransferWindow = transWindow; |
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109 |
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110 CleanupStack::Pop(transWindow); |
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111 CleanupStack::Pop(transBuffer); |
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112 |
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113 return buffer; |
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114 } |
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115 #endif |
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116 |
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117 |
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118 #ifdef __USE_MMF_PTRBUFFERS__ |
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119 CMMFPtrBuffer* CMMFSwCodecDataPath::CreatePtrBufferL(TUint aBufferSize) |
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120 { |
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121 CMMFPtrBuffer* buffer = NULL; |
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122 if (iPtrBufferMemoryBlock) |
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123 delete iPtrBufferMemoryBlock;//incase already exisits |
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124 iPtrBufferMemoryBlock = HBufC8::NewL(aBufferSize); |
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125 TPtr8 ptrMemoryBlock(iPtrBufferMemoryBlock->Des()); |
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126 buffer = CMMFPtrBuffer::NewL(ptrMemoryBlock); |
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127 return buffer; |
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128 } |
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129 #endif // __USE_MMF_PTRBUFFERS__ |
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130 |
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131 |