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1 /* |
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2 * Copyright (c) 2004 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: Implementation of the AudioEqualizer effect message handler class. |
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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 // INCLUDE FILES |
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21 #include "AudioEqualizerMessageHandler.h" |
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22 #include "AudioEqualizerMessageTypes.h" |
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23 #include <AudioEqualizerBase.h> |
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24 #include "EffectDataQueItem.h" |
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25 #ifdef _DEBUG |
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26 #include <e32svr.h> |
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27 #endif |
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28 |
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29 // ================= MEMBER FUNCTIONS ======================= |
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30 |
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31 // C++ default constructor can NOT contain any code, that |
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32 // might leave. |
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33 // |
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34 CAudioEqualizerMessageHandler::CAudioEqualizerMessageHandler( |
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35 CAudioEqualizer* aAudioEqualizer ) |
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36 : CMMFObject(KUidAudioEqualizerEffect), |
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37 iAudioEqualizer(NULL), |
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38 iMessage(NULL), |
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39 iRegistered(EFalse), |
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40 iEffectDataQue(NULL) |
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41 { |
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42 iAudioEqualizer = aAudioEqualizer; |
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43 } |
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44 |
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45 |
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46 EXPORT_C CAudioEqualizerMessageHandler* CAudioEqualizerMessageHandler::NewL( |
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47 TAny* aCustomInterface ) |
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48 { |
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49 CAudioEqualizer* audioEqualizer = (CAudioEqualizer*)aCustomInterface; |
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50 CAudioEqualizerMessageHandler* self = new (ELeave) CAudioEqualizerMessageHandler(audioEqualizer); |
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51 self->ConstructL(); |
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52 return self; |
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53 } |
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54 |
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55 |
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56 // ----------------------------------------------------------------------------- |
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57 // CAudioEqualizerMessageHandler::ConstructL |
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58 // Symbian 2nd phase constructor can leave. |
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59 // Create and initializes the effect data queue. |
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60 // ----------------------------------------------------------------------------- |
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61 // |
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62 void CAudioEqualizerMessageHandler::ConstructL() |
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63 { |
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64 iEffectDataQue = new(ELeave) TSglQue<CEffectDataQueItem>(_FOFF(CEffectDataQueItem, iLink)); |
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65 } |
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66 |
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67 |
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68 // ----------------------------------------------------------------------------- |
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69 // CAudioEqualizerMessageHandler::~CAudioEqualizerMessageHandler |
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70 // Before going away, unregister with the CI AudioEqualizer object. |
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71 // The observation message must be completed if outstanding. |
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72 // The effect data queue must be emptied and destroyed. |
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73 // ----------------------------------------------------------------------------- |
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74 // |
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75 CAudioEqualizerMessageHandler::~CAudioEqualizerMessageHandler() |
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76 { |
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77 |
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78 #ifdef _DEBUG |
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79 RDebug::Print(_L("CAudioEqualizerMessageHandler::~CAudioEqualizerMessageHandler")); |
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80 #endif |
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81 |
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82 if(iAudioEqualizer) |
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83 iAudioEqualizer->UnRegisterObserver(*this); |
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84 iRegistered = EFalse; |
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85 |
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86 if(iMessage) |
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87 { |
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88 if ( !iMessage->IsCompleted() ) |
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89 { |
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90 iMessage->Complete(KErrCancel); |
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91 delete iMessage; |
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92 } |
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93 } |
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94 |
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95 if ( iEffectDataQue ) |
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96 { |
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97 CEffectDataQueItem* queItem; |
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98 while ( !iEffectDataQue->IsEmpty() ) |
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99 { |
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100 queItem = iEffectDataQue->First(); |
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101 iEffectDataQue->Remove(*queItem); |
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102 delete queItem; |
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103 } |
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104 |
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105 delete iEffectDataQue; |
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106 } |
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107 |
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108 delete iAudioEqualizer; |
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109 |
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110 } |
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111 |
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112 |
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113 // --------------------------------------------------------- |
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114 // CAudioEqualizerMessageHandler::HandleRequest |
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115 // (other items were commented in a header). |
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116 // --------------------------------------------------------- |
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117 // |
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118 void CAudioEqualizerMessageHandler::HandleRequest( |
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119 TMMFMessage& aMessage ) |
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120 { |
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121 ASSERT(aMessage.Destination().InterfaceId() == KUidAudioEqualizerEffect); |
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122 TRAPD(error,DoHandleRequestL(aMessage)); |
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123 if ( error ) |
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124 { |
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125 aMessage.Complete(error); |
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126 } |
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127 } |
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128 |
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129 // --------------------------------------------------------- |
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130 // CAudioEqualizerMessageHandler::DoHandleRequestL |
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131 // Dispatches the message to the appropriate handler. |
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132 // --------------------------------------------------------- |
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133 // |
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134 void CAudioEqualizerMessageHandler::DoHandleRequestL( |
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135 TMMFMessage& aMessage ) |
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136 { |
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137 switch( aMessage.Function() ) |
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138 { |
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139 case EAefInitialize: |
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140 { |
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141 DoInitializeL(aMessage); |
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142 break; |
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143 } |
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144 case EAefInitializeBand: |
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145 { |
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146 DoInitializeBandL(aMessage); |
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147 break; |
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148 } |
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149 case EAefGetNumberOfBands: |
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150 { |
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151 DoGetNumberOfBandsL(aMessage); |
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152 break; |
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153 } |
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154 case EAefApply: |
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155 { |
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156 DoApplyL(aMessage); |
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157 break; |
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158 } |
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159 case EAefApplyBand: |
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160 { |
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161 DoApplyBandL(aMessage); |
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162 break; |
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163 } |
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164 case EAefObserve: |
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165 { |
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166 DoObserveL(aMessage); |
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167 break; |
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168 } |
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169 default: |
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170 { |
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171 aMessage.Complete(KErrNotSupported); |
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172 } |
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173 } |
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174 } |
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175 |
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176 // --------------------------------------------------------- |
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177 // CAudioEqualizerMessageHandler::DoInitializeL |
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178 // --------------------------------------------------------- |
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179 // |
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180 void CAudioEqualizerMessageHandler::DoInitializeL(TMMFMessage& aMessage) |
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181 { |
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182 #ifdef _DEBUG |
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183 RDebug::Print(_L("CAudioEqualizerMessageHandler::DoInitializeL")); |
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184 #endif |
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185 aMessage.WriteDataToClient(iAudioEqualizer->DoEffectData()); |
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186 aMessage.Complete(KErrNone); |
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187 } |
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188 |
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189 // --------------------------------------------------------- |
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190 // CAudioEqualizerMessageHandler::DoInitializeBandL |
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191 // --------------------------------------------------------- |
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192 // |
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193 void CAudioEqualizerMessageHandler::DoInitializeBandL(TMMFMessage& aMessage) |
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194 { |
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195 #ifdef _DEBUG |
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196 RDebug::Print(_L("CAudioEqualizerMessageHandler::DoInitializeBandL")); |
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197 #endif |
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198 TUint8 band = 0; |
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199 TPckgBuf<TUint8> bandPckg; |
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200 aMessage.ReadData1FromClient(bandPckg); |
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201 band = bandPckg(); |
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202 aMessage.WriteDataToClient(iAudioEqualizer->DoBandDataL(band, EFalse)); |
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203 aMessage.Complete(KErrNone); |
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204 } |
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205 |
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206 // --------------------------------------------------------- |
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207 // CAudioEqualizerMessageHandler::DoGetNumberOfBandsL |
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208 // --------------------------------------------------------- |
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209 // |
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210 void CAudioEqualizerMessageHandler::DoGetNumberOfBandsL(TMMFMessage& aMessage) |
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211 { |
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212 #ifdef _DEBUG |
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213 RDebug::Print(_L("CAudioEqualizerMessageHandler::DoGetNumberOfBandsL")); |
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214 #endif |
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215 TUint8 band = iAudioEqualizer->NumberOfBands(); |
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216 TPckgBuf<TUint8> bandPckg(band); |
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217 aMessage.WriteDataToClient(bandPckg); |
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218 aMessage.Complete(KErrNone); |
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219 } |
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220 |
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221 // --------------------------------------------------------- |
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222 // CAudioEqualizerMessageHandler::DoApplyL |
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223 // Extracts the data from the message. The client AudioEqualizer |
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224 // data is applied to the CI AudioEqualizer object. |
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225 // --------------------------------------------------------- |
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226 // |
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227 void CAudioEqualizerMessageHandler::DoApplyL( |
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228 TMMFMessage& aMessage ) |
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229 { |
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230 #ifdef _DEBUG |
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231 RDebug::Print(_L("CAudioEqualizerMessageHandler::DoApplyL")); |
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232 #endif |
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233 TEfAudioEqualizerDataPckg audioEqualizerPckgFromClient; |
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234 aMessage.ReadData1FromClient(audioEqualizerPckgFromClient); |
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235 iAudioEqualizer->SetEffectData(audioEqualizerPckgFromClient); |
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236 // iAudioEqualizer->ApplyL(); |
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237 aMessage.Complete(KErrNone); |
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238 } |
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239 |
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240 // --------------------------------------------------------- |
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241 // CAudioEqualizerMessageHandler::DoApplyBandL |
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242 // Extracts the data from the message. The client Audio Equalizer |
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243 // band data is applied to the CI AudioEqualizer object. |
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244 // --------------------------------------------------------- |
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245 // |
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246 void CAudioEqualizerMessageHandler::DoApplyBandL( |
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247 TMMFMessage& aMessage ) |
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248 { |
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249 #ifdef _DEBUG |
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250 RDebug::Print(_L("CAudioEqualizerMessageHandler::DoApplyBandL")); |
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251 #endif |
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252 TEfAudioEqualizerBandDataPckg audioEqualizerBandDataPckgFromClient; |
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253 HBufC8* bandDataBuf = HBufC8::NewL(iAudioEqualizer->NumberOfBands() * sizeof(TEfAudioEqualizerBand)); |
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254 TPtr8 des = bandDataBuf->Des(); |
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255 des.SetLength(bandDataBuf->Size()); |
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256 |
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257 aMessage.ReadData1FromClient(des); |
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258 //aMessage.ReadData1FromClient(audioEqualizerBandDataPckgFromClient); |
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259 //iAudioEqualizer->SetBandDataL(1,audioEqualizerBandDataPckgFromClient); |
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260 iAudioEqualizer->SetBandDataL(2,des); |
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261 delete bandDataBuf; |
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262 iAudioEqualizer->ApplyL(); |
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263 aMessage.Complete(KErrNone); |
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264 } |
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265 // --------------------------------------------------------- |
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266 // CAudioEqualizerMessageHandler::DoObserveL |
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267 // Receives the observation request message and depending |
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268 // on the status of the effect data queue, the message is |
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269 // completed immediately or saved for later completion. |
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270 // --------------------------------------------------------- |
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271 // |
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272 void CAudioEqualizerMessageHandler::DoObserveL( |
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273 TMMFMessage& aMessage ) |
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274 { |
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275 |
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276 #ifdef _DEBUG |
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277 RDebug::Print(_L("CAudioEqualizerMessageHandler::DoObserveL")); |
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278 #endif |
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279 |
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280 if ( !iRegistered ) |
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281 { |
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282 iAudioEqualizer->RegisterObserverL(*this); |
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283 iRegistered = ETrue; |
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284 } |
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285 |
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286 if ( iEffectDataQue->IsEmpty() ) |
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287 { |
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288 //iMessage = &aMessage; |
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289 iMessage = new(ELeave) TMMFMessage(aMessage); |
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290 } |
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291 else |
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292 { |
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293 TEfAudioEqualizerCombinedDataPckg dataPckg; |
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294 CEffectDataQueItem* item = iEffectDataQue->First(); |
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295 dataPckg.Copy(item->EffectData()); |
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296 aMessage.WriteDataToClient(dataPckg); |
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297 aMessage.Complete(KErrNone); |
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298 iEffectDataQue->Remove(*item); |
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299 delete item; |
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300 } |
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301 } |
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302 |
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303 // --------------------------------------------------------- |
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304 // CAudioEqualizerMessageHandler::EffectChanged |
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305 // The CI AudioEqualizer object has changed state. |
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306 // The observation message is completed if no data has been |
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307 // queued up. Otherwise, the CI AudioEqualizer object's data is |
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308 // packaged and queued. |
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309 // --------------------------------------------------------- |
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310 // |
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311 void CAudioEqualizerMessageHandler::EffectChanged( |
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312 const CAudioEffect* aAudioEffect, |
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313 TUint8 aEvent ) |
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314 { |
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315 #ifdef _DEBUG |
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316 RDebug::Print(_L("CAudioEqualizerMessageHandler::EffectChanged")); |
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317 #endif |
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318 |
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319 TEfAudioEqualizerCombined data; |
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320 data.iAudioEqualizerDataValid = EFalse; |
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321 data.iAudioEqualizerBandDataValid = EFalse; |
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322 |
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323 if ( aEvent < MAudioEffectObserver::KSpecificEffectBase ) |
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324 { |
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325 data.iEnabled = ((CAudioEqualizer*)aAudioEffect)->IsEnabled(); |
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326 data.iHaveUpdateRights = ((CAudioEqualizer*)aAudioEffect)->HaveUpdateRights(); |
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327 data.iEnforced = ((CAudioEqualizer*)aAudioEffect)->IsEnforced(); |
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328 data.iAudioEqualizerDataValid = ETrue; |
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329 } |
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330 else |
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331 { |
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332 TUint8 band = aEvent - MAudioEffectObserver::KSpecificEffectBase; |
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333 data.iBandId = band; |
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334 data.iBandLevel = ((CAudioEqualizer*)aAudioEffect)->BandLevel(band); |
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335 data.iBandWidth = ((CAudioEqualizer*)aAudioEffect)->BandWidth(band); |
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336 data.iCenterFrequency = ((CAudioEqualizer*)aAudioEffect)->CenterFrequency(band); |
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337 data.iCrossoverFrequency = ((CAudioEqualizer*)aAudioEffect)->CrossoverFrequency(band); |
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338 data.iAudioEqualizerBandDataValid = ETrue; |
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339 } |
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340 |
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341 TEfAudioEqualizerCombinedDataPckg dataPckg(data); |
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342 |
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343 if ( iMessage && !iMessage->IsCompleted() && iEffectDataQue->IsEmpty() ) |
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344 { |
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345 iMessage->WriteDataToClient(dataPckg); |
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346 iMessage->Complete(KErrNone); |
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347 delete iMessage; |
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348 iMessage = NULL; |
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349 } |
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350 else |
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351 { |
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352 // Saves the data and complete an observation message next time around. |
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353 HBufC8* data = NULL; |
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354 TRAPD(err1,data = dataPckg.AllocL()); |
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355 if(!err1) |
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356 { |
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357 //CleanupStack::PushL(data); |
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358 CEffectDataQueItem* item = NULL; |
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359 TRAPD(err2,item = CEffectDataQueItem::NewL(data)); |
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360 if(!err2) |
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361 { |
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362 iEffectDataQue->AddLast(*item); |
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363 } |
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364 else |
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365 { |
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366 delete data; |
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367 } |
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368 } |
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369 else |
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370 { |
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371 #ifdef _DEBUG |
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372 RDebug::Print(_L("CAudioEqualizerMessageHandler::EffectChanged Error Allocating Memory %d"),err1); |
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373 #endif |
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374 } |
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375 } |
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376 |
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377 } |
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378 |
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379 |
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380 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
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381 |
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382 |
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383 |
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384 // End of File |