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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 audio equalizer proxy 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 |
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21 // INCLUDE FILES |
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22 |
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23 #ifdef _DEBUG |
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24 #include <e32svr.h> |
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25 #endif |
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26 |
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27 #include "AudioEqualizerProxy.h" |
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28 #include "AudioEqualizerEventObserver.h" |
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29 #include <CustomInterfaceUtility.h> |
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30 |
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31 |
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32 // ============================ MEMBER FUNCTIONS =============================== |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // CAudioEqualizerProxy::CAudioEqualizerProxy |
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36 // C++ default constructor can NOT contain any code, that |
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37 // might leave. |
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38 // ----------------------------------------------------------------------------- |
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39 // |
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40 CAudioEqualizerProxy::CAudioEqualizerProxy( |
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41 TMMFMessageDestinationPckg aMessageHandler, |
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42 MCustomCommand& aCustomCommand, |
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43 CCustomInterfaceUtility* aCustomInterfaceUtility ) |
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44 : iCustomCommand(&aCustomCommand), |
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45 iMessageHandler(aMessageHandler), |
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46 iCustomInterfaceUtility(aCustomInterfaceUtility) |
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47 |
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48 { |
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49 } |
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50 |
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51 // Destructor |
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52 CAudioEqualizerProxy::~CAudioEqualizerProxy() |
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53 { |
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54 // Remove the custom interface message handler before we destroy the proxy. |
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55 if(iCustomInterfaceUtility) |
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56 iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler); |
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57 delete iAudioEqualizerEventObserver; |
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58 delete iCustomInterfaceUtility; |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // CAudioEqualizerProxy::NewL |
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63 // Static function for creating an instance of the Audio Equalizer object. |
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64 // ----------------------------------------------------------------------------- |
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65 // |
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66 EXPORT_C CAudioEqualizerProxy* CAudioEqualizerProxy::NewL( |
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67 TMMFMessageDestinationPckg aMessageHandler, |
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68 MCustomCommand& aCustomCommand, |
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69 CCustomInterfaceUtility* aCustomInterfaceUtility ) |
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70 { |
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71 CAudioEqualizerProxy* self = new (ELeave) CAudioEqualizerProxy(aMessageHandler, aCustomCommand, aCustomInterfaceUtility); |
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72 CleanupStack::PushL(self); |
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73 self->ConstructL(); |
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74 CleanupStack::Pop(self); |
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75 return self; |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CAudioEqualizerProxy::ConstructL |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 void CAudioEqualizerProxy::ConstructL() |
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83 { |
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84 #ifdef _DEBUG |
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85 RDebug::Print(_L("CAudioEqualizerProxy::ConstructL")); |
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86 #endif |
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87 iAudioEqualizerEventObserver = CAudioEqualizerEventObserver::NewL(iMessageHandler, *iCustomCommand, *this); |
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88 StartObserver(); |
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89 // sends a message to fetch initial data. |
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90 TEfAudioEqualizerDataPckg dataPckgFrom; |
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91 iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefInitialize, KNullDesC8, KNullDesC8, dataPckgFrom); |
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92 SetEffectData(dataPckgFrom); |
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93 |
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94 TUint8 band = 0; |
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95 TPckgBuf<TUint8> bandPckg; |
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96 bandPckg() = 0; |
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97 |
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98 iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefGetNumberOfBands, KNullDesC8, KNullDesC8, bandPckg); |
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99 band = bandPckg(); |
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100 |
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101 if ( !band ) // Number of bands should be > 0. |
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102 { |
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103 User::Leave(KErrNotReady); |
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104 } |
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105 |
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106 TEfAudioEqualizerBand bandData; |
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107 TEfAudioEqualizerBandDataPckg bandDataPckg; |
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108 TInt8 numberOfBands = band; |
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109 for(TInt i=1; i<=numberOfBands; i++) |
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110 { |
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111 band = i; |
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112 bandPckg() = band; |
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113 iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefInitializeBand, bandPckg, KNullDesC8, bandDataPckg); |
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114 bandData = bandDataPckg(); |
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115 if(iBandsData.Append(bandData)) |
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116 { |
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117 User::Leave(KErrNoMemory); |
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118 } |
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119 } |
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120 |
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121 } |
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122 |
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123 |
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124 // ----------------------------------------------------------------------------- |
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125 // CAudioEqualizerProxy::ApplyL |
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126 // Apply the Audio Equalizer settings. |
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127 // ----------------------------------------------------------------------------- |
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128 // |
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129 EXPORT_C void CAudioEqualizerProxy::ApplyL() |
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130 { |
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131 #ifdef _DEBUG |
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132 RDebug::Print(_L("CAudioEqualizerProxy::Apply")); |
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133 #endif |
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134 |
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135 if ( !iHaveUpdateRights ) |
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136 { |
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137 User::Leave(KErrAccessDenied); |
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138 } |
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139 |
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140 // TUint32 mask = 1; |
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141 iAudioEqualizerData.iEnabled = iEnabled; |
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142 iAudioEqualizerData.iEnforced = iEnforced; |
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143 iAudioEqualizerData.iHaveUpdateRights = iHaveUpdateRights; |
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144 iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefApply, DoEffectData(), KNullDesC8); |
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145 |
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146 #ifdef _DEBUG |
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147 RDebug::Print(_L("CAudioEqualizerProxy::Apply - BandChange = %x"), iBandChange); |
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148 #endif |
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149 iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)EAefApplyBand, DoBandDataL(1, ETrue), KNullDesC8); |
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150 |
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151 iBandChange = 0; // clear flags |
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152 } |
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153 |
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154 // ----------------------------------------------------------------------------- |
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155 // CAudioEqualizerProxy::StartObserver |
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156 // Starts the event observer. The event observer monitors asynchronous events |
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157 // from the message handler. |
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158 // ----------------------------------------------------------------------------- |
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159 // |
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160 void CAudioEqualizerProxy::StartObserver() |
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161 { |
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162 #ifdef _DEBUG |
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163 RDebug::Print(_L("CAudioEqualizerProxy::StartObserver")); |
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164 #endif |
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165 |
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166 iAudioEqualizerEventObserver->Start(); |
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167 } |
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168 |
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169 // ----------------------------------------------------------------------------- |
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170 // CAudioEqualizerProxy::AudioEqualizerEvent |
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171 // Checks which data member has changed and notify the observers. |
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172 // ----------------------------------------------------------------------------- |
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173 // |
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174 void CAudioEqualizerProxy::AudioEqualizerEventL( |
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175 const TDesC8& aBuffer ) |
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176 { |
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177 #ifdef _DEBUG |
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178 RDebug::Print(_L("CAudioEqualizerProxy::AudioEqualizerEventL")); |
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179 #endif |
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180 |
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181 TEfAudioEqualizerCombinedDataPckg dataPckgFrom; |
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182 dataPckgFrom.Copy(aBuffer); |
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183 TEfAudioEqualizerCombined newEqualizerCombinedData = dataPckgFrom(); |
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184 |
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185 TUint8 event = 0; |
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186 |
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187 if ( newEqualizerCombinedData.iAudioEqualizerDataValid ) // Equalizer Data Changed |
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188 { |
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189 if ( newEqualizerCombinedData.iEnabled != iAudioEqualizerData.iEnabled ) |
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190 { |
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191 iAudioEqualizerData.iEnabled = newEqualizerCombinedData.iEnabled; |
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192 iEnabled = newEqualizerCombinedData.iEnabled; |
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193 if ( iAudioEqualizerData.iEnabled ) |
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194 { |
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195 event = MAudioEffectObserver::KEnabled; |
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196 } |
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197 else |
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198 { |
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199 event = MAudioEffectObserver::KDisabled; |
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200 } |
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201 } |
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202 else if ( newEqualizerCombinedData.iEnforced != iAudioEqualizerData.iEnforced ) |
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203 { |
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204 iAudioEqualizerData.iEnforced = newEqualizerCombinedData.iEnforced; |
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205 iEnforced = newEqualizerCombinedData.iEnforced; |
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206 if ( iAudioEqualizerData.iEnforced ) |
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207 { |
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208 event = MAudioEffectObserver::KEnforced; |
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209 } |
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210 else |
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211 { |
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212 event = MAudioEffectObserver::KNotEnforced; |
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213 } |
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214 } |
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215 else if ( newEqualizerCombinedData.iHaveUpdateRights != iAudioEqualizerData.iHaveUpdateRights ) |
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216 { |
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217 iAudioEqualizerData.iHaveUpdateRights = newEqualizerCombinedData.iHaveUpdateRights; |
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218 iHaveUpdateRights = newEqualizerCombinedData.iHaveUpdateRights; |
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219 if ( iAudioEqualizerData.iHaveUpdateRights ) |
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220 { |
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221 event = MAudioEffectObserver::KGainedUpdateRights; |
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222 } |
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223 else |
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224 { |
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225 event = MAudioEffectObserver::KLostUpdateRights; |
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226 } |
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227 } |
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228 |
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229 } |
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230 |
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231 else if ( newEqualizerCombinedData.iAudioEqualizerBandDataValid ) // Equalizer band data changed |
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232 { |
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233 TInt bandId = newEqualizerCombinedData.iBandId-1; |
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234 iBandsData[bandId].iBandLevel = newEqualizerCombinedData.iBandLevel; |
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235 iBandsData[bandId].iBandWidth = newEqualizerCombinedData.iBandWidth; |
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236 iBandsData[bandId].iCenterFrequency = newEqualizerCombinedData.iCenterFrequency; |
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237 iBandsData[bandId].iCrossoverFrequency = newEqualizerCombinedData.iCrossoverFrequency; |
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238 event = MAudioEffectObserver::KSpecificEffectBase + newEqualizerCombinedData.iBandId; |
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239 } |
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240 |
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241 |
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242 |
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243 if (!event) |
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244 return; |
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245 |
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246 for ( TInt i = 0; i < iObservers.Count(); i++ ) |
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247 { |
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248 iObservers[i]->EffectChanged(this, event); |
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249 } |
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250 } |
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251 |
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252 |
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253 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
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254 |
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255 |
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256 |