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1 /* |
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2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 /** |
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20 @file |
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21 @internalComponent |
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22 */ |
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23 |
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24 #include <e32debug.h> |
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25 #include "asbreakeventhandler.h" |
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26 |
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27 const TDesC* StateDes(OMX_STATETYPE); |
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28 |
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29 RASBreakEventHandler::RASBreakEventHandler(MASBreakCallback& aHandler): |
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30 iHandler(aHandler), |
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31 iCounter(0), |
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32 iMode(EIdle) |
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33 { |
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34 iOmxCallbackType.EventHandler = EventHandler; |
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35 |
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36 // do nothing function is set for these callbacks, rather than using NULL |
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37 iOmxCallbackType.EmptyBufferDone = EmptyBufferDone; |
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38 iOmxCallbackType.FillBufferDone = FillBufferDone; |
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39 } |
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40 |
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41 TInt RASBreakEventHandler::Create() |
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42 { |
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43 return iMutex.CreateLocal(); |
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44 } |
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45 |
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46 void RASBreakEventHandler::Close() |
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47 { |
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48 for(TInt aIndex = 0, aCount = iComponents.Count(); aIndex < aCount; aIndex++) |
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49 { |
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50 delete iComponents[aIndex].iName; |
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51 } |
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52 iComponents.Close(); |
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53 iCounter = 0; |
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54 iMode = EIdle; |
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55 iMutex.Close(); |
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56 } |
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57 |
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58 void RASBreakEventHandler::AddComponentL(OMX_COMPONENTTYPE* aComponent, const TDesC& aName) |
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59 { |
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60 ASSERT(iMode == EIdle); |
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61 TComponentInfo componentInfo; |
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62 componentInfo.iHandle = aComponent; |
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63 componentInfo.iName = HBufC::NewLC(aName.Length()); |
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64 *(componentInfo.iName) = aName; |
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65 componentInfo.iComplete = EFalse; |
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66 User::LeaveIfError(iComponents.Append(componentInfo)); |
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67 CleanupStack::Pop(componentInfo.iName); |
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68 } |
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69 |
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70 OMX_ERRORTYPE RASBreakEventHandler::FillBufferDone(OMX_IN OMX_HANDLETYPE hComponent, |
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71 OMX_IN OMX_PTR pAppData, |
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72 OMX_IN OMX_BUFFERHEADERTYPE* pBuffer) |
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73 { |
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74 return reinterpret_cast<RASBreakEventHandler*>(pAppData)->DoBufferDone(reinterpret_cast<OMX_COMPONENTTYPE*>(hComponent), pBuffer, ETrue); |
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75 } |
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76 |
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77 OMX_ERRORTYPE RASBreakEventHandler::EmptyBufferDone(OMX_IN OMX_HANDLETYPE hComponent, |
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78 OMX_IN OMX_PTR pAppData, |
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79 OMX_IN OMX_BUFFERHEADERTYPE* pBuffer) |
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80 { |
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81 return reinterpret_cast<RASBreakEventHandler*>(pAppData)->DoBufferDone(reinterpret_cast<OMX_COMPONENTTYPE*>(hComponent), pBuffer, EFalse); |
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82 } |
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83 |
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84 OMX_ERRORTYPE RASBreakEventHandler::DoBufferDone(OMX_COMPONENTTYPE* aComponent, OMX_BUFFERHEADERTYPE* aBufHdr, TBool aSource) |
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85 { |
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86 iHandler.BufferDone(aComponent, aBufHdr, aSource); |
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87 return OMX_ErrorNone; |
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88 } |
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89 |
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90 OMX_ERRORTYPE RASBreakEventHandler::EventHandler(OMX_HANDLETYPE hComponent, |
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91 OMX_PTR pAppData, |
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92 OMX_EVENTTYPE eEvent, |
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93 OMX_U32 nData1, |
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94 OMX_U32 nData2, |
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95 OMX_PTR pEventData) |
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96 { |
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97 return reinterpret_cast<RASBreakEventHandler*>(pAppData)->DoEventHandler(reinterpret_cast<OMX_COMPONENTTYPE*>(hComponent), eEvent, nData1, nData2, pEventData); |
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98 } |
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99 |
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100 OMX_ERRORTYPE RASBreakEventHandler::DoEventHandler(OMX_COMPONENTTYPE* aComponent, OMX_EVENTTYPE aEvent, TUint32 aData1, TUint32 aData2, TAny* aEventData) |
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101 { |
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102 iMutex.Wait(); |
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103 if((iMode == EAwaitingTransition || iMode == EAwaitingSingleTransition) && aEvent == OMX_EventCmdComplete && aData1 == OMX_CommandStateSet) |
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104 { |
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105 StateSet(aComponent, (OMX_STATETYPE) aData2); |
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106 } |
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107 else if(iMode == EAwaitingEOS && aEvent == OMX_EventBufferFlag && aData2 & OMX_BUFFERFLAG_EOS) |
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108 { |
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109 EndOfStream(aComponent); |
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110 } |
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111 else |
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112 { |
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113 iHandler.EventReceived(aComponent, aEvent, aData1, aData2, aEventData); |
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114 } |
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115 iMutex.Signal(); |
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116 return OMX_ErrorNone; |
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117 } |
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118 |
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119 void RASBreakEventHandler::StateSet(OMX_COMPONENTTYPE* aComponent, OMX_STATETYPE aState) |
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120 { |
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121 RDebug::Print(_L("State transition: component %S is in state %S\n"), ComponentName(aComponent), StateDes(aState)); |
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122 if(iMode == EAwaitingTransition) |
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123 { |
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124 __ASSERT_ALWAYS(aState == iNewState, User::Panic(_L("RASBreakEventHandler"), 2)); |
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125 if(--iCounter == 0) |
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126 { |
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127 iMode = EIdle; |
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128 iHandler.AllComponentsTransitioned(iNewState, iOldState); |
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129 } |
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130 } |
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131 else if (iMode == EAwaitingSingleTransition) |
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132 { |
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133 __ASSERT_ALWAYS(aState == iNewState, User::Panic(_L("RASBreakEventHandler"), 2)); |
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134 iMode = EIdle; |
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135 iHandler.ComponentTransitioned(iNewState, iOldState); |
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136 } |
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137 } |
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138 |
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139 void RASBreakEventHandler::EndOfStream(OMX_COMPONENTTYPE* aComponent) |
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140 { |
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141 RDebug::Print(_L("End of stream from component %S\n"), ComponentName(aComponent)); |
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142 if(iMode == EAwaitingEOS) |
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143 { |
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144 TInt index = iComponents.Find(aComponent, TComponentInfo::CompareHandle); |
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145 // panic if component was not found |
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146 __ASSERT_ALWAYS(index >= 0, User::Invariant()); |
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147 |
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148 // only respond to EOS changing state, to allow potential duplicates |
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149 if(!iComponents[index].iComplete) |
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150 { |
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151 iComponents[index].iComplete = ETrue; |
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152 iCounter--; |
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153 // if iEOSComponent is NULL, wait for all components, otherwise wait for individual component |
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154 if(iEOSComponent == NULL && iCounter == 0 || iEOSComponent == aComponent) |
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155 { |
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156 iMode = EIdle; |
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157 iHandler.AllComponentsEOS(); |
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158 } |
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159 } |
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160 } |
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161 } |
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162 |
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163 void RASBreakEventHandler::AwaitTransition(OMX_STATETYPE aNewState, OMX_STATETYPE aOldState) |
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164 { |
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165 RDebug::Print(_L("Awaiting all components to transition from %S to %S\n"), StateDes(aOldState), StateDes(aNewState)); |
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166 ASSERT(iMode == EIdle); |
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167 iMode = EAwaitingTransition; |
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168 iNewState = aNewState; |
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169 iOldState = aOldState; |
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170 iCounter = iComponents.Count(); |
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171 } |
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172 |
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173 void RASBreakEventHandler::AwaitSingleTransition(OMX_COMPONENTTYPE* aComponent, OMX_STATETYPE aNewState, OMX_STATETYPE aOldState) |
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174 { |
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175 RDebug::Print(_L("Awaiting %S components to transition from %S to %S\n"), ComponentName(aComponent), StateDes(aOldState), StateDes(aNewState)); |
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176 ASSERT(iMode == EIdle); |
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177 iMode = EAwaitingSingleTransition; |
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178 iNewState = aNewState; |
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179 iOldState = aOldState; |
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180 } |
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181 |
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182 void RASBreakEventHandler::AwaitEOS() |
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183 { |
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184 RDebug::Print(_L("Awaiting End Of Stream flag from all components\n")); |
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185 ASSERT(iMode == EIdle); |
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186 iMode = EAwaitingEOS; |
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187 iEOSComponent = NULL; // wait for all components, not an individual component |
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188 for(iCounter = 0; iCounter < iComponents.Count(); iCounter++) |
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189 { |
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190 iComponents[iCounter].iComplete = EFalse; |
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191 } |
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192 } |
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193 |
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194 void RASBreakEventHandler::AwaitEOS(OMX_COMPONENTTYPE* aComponent) |
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195 { |
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196 RDebug::Print(_L("Awaiting End Of Stream flag from component %S\n"), ComponentName(aComponent)); |
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197 ASSERT(iMode == EIdle); |
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198 iMode = EAwaitingEOS; |
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199 iEOSComponent = aComponent; |
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200 for(iCounter = 0; iCounter < iComponents.Count(); iCounter++) |
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201 { |
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202 iComponents[iCounter].iComplete = EFalse; |
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203 } |
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204 } |
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205 |
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206 const TDesC* RASBreakEventHandler::ComponentName(OMX_COMPONENTTYPE* aComponent) |
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207 { |
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208 TInt index = iComponents.Find(aComponent, TComponentInfo::CompareHandle); |
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209 if(index == KErrNotFound) |
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210 { |
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211 return NULL; |
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212 } |
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213 return iComponents[index].iName; |
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214 } |
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215 |
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216 OMX_CALLBACKTYPE& RASBreakEventHandler::CallbackStruct() |
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217 { |
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218 return iOmxCallbackType; |
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219 } |