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1 // Copyright (c) 2006-2009 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 // |
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15 |
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16 |
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17 |
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18 #include "audiogaincontrol.h" |
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19 #include <a3f/audioprocessingunittypeuids.h> |
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20 |
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21 // ======== LOCAL FUNCTIONS ======== |
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22 void Panic(TInt aPanicCode) |
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23 { |
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24 _LIT(KAudioGainControlPanicCategory, "audiogaincontrol"); |
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25 User::Panic(KAudioGainControlPanicCategory, aPanicCode); |
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26 } |
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27 |
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28 // ======== MEMBER FUNCTIONS ======== |
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29 |
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30 // --------------------------------------------------------------------------- |
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31 // Constructor |
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32 // --------------------------------------------------------------------------- |
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33 CAudioGainControl::CAudioGainControl() |
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34 { |
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35 TRACE_CREATE(); |
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36 DP_CONTEXT(CAudioGainControl::CAudioGainControl *CD1*, CtxDevSound, DPLOCAL); |
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37 DP_IN(); |
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38 DP_OUT(); |
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39 } |
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40 |
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41 // --------------------------------------------------------------------------- |
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42 // Factory method |
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43 // --------------------------------------------------------------------------- |
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44 EXPORT_C CAudioGainControl* CAudioGainControl::NewL() |
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45 { |
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46 DP_STATIC_CONTEXT(CAudioGainControl::NewL *CD0*, CtxDevSound, DPLOCAL); |
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47 DP_IN(); |
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48 CAudioGainControl* self = new(ELeave)CAudioGainControl(); |
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49 CleanupStack::PushL(self); |
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50 self->ConstructL(); |
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51 CleanupStack::Pop(self); |
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52 DP0_RET(self, "0x%x"); |
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53 } |
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54 |
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55 // --------------------------------------------------------------------------- |
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56 // Second phase constructor |
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57 // --------------------------------------------------------------------------- |
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58 void CAudioGainControl::ConstructL() |
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59 { |
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60 DP_CONTEXT(CAudioGainControl::ConstructL *CD1*, CtxDevSound, DPLOCAL); |
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61 DP_IN(); |
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62 DP_OUT(); |
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63 } |
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64 |
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65 // --------------------------------------------------------------------------- |
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66 // Destructor |
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67 // --------------------------------------------------------------------------- |
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68 CAudioGainControl::~CAudioGainControl() |
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69 { |
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70 DP_CONTEXT(CAudioGainControl::~CAudioGainControl *CD1*, CtxDevSound, DPLOCAL); |
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71 DP_IN(); |
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72 iGainObservers.Close(); |
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73 DP_OUT(); |
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74 } |
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75 |
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76 EXPORT_C void CAudioGainControl::SetHelper(MGainHelper &aHelper) |
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77 { |
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78 iHelper = &aHelper; |
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79 } |
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80 // --------------------------------------------------------------------------- |
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81 // CAudioGainControl::IssueGainChangedCallBack |
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82 // --------------------------------------------------------------------------- |
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83 EXPORT_C void CAudioGainControl::IssueGainChangedCallBack(TInt aError) |
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84 { |
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85 DP_CONTEXT(CAudioGainControl::IssueGainChangedCallBack *CD1*, CtxDevSound, DPLOCAL); |
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86 DP_IN(); |
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87 TUint count = iGainObservers.Count(); |
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88 for(TUint i(0); i<count; i++) |
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89 { |
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90 iGainObservers[i]->GainChanged(*this, aError); |
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91 } |
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92 DP_OUT(); |
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93 } |
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94 |
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95 // --------------------------------------------------------------------------- |
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96 // CAudioGainControl::IssueMaxGainChangedCallBack |
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97 // --------------------------------------------------------------------------- |
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98 void CAudioGainControl::IssueMaxGainChangedCallBack() |
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99 { |
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100 DP_CONTEXT(CAudioGainControl::IssueMaxGainChangedCallBack *CD1*, CtxDevSound, DPLOCAL); |
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101 DP_IN(); |
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102 TUint count = iGainObservers.Count(); |
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103 for(TUint i(0); i<count; i++) |
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104 { |
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105 iGainObservers[i]->MaxGainChanged(*this); |
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106 } |
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107 DP_OUT(); |
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108 } |
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109 |
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110 // --------------------------------------------------------------------------- |
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111 // CAudioGainControl::IssueMaxRampTimeGainChangedCallBack |
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112 // --------------------------------------------------------------------------- |
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113 void CAudioGainControl::IssueMaxRampTimeChangedCallBack() |
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114 { |
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115 DP_CONTEXT(CAudioGainControl::IssueMaxRampTimeChangedCallBack *CD1*, CtxDevSound, DPLOCAL); |
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116 DP_IN(); |
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117 TUint count = iGainObservers.Count(); |
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118 for(TUint i(0); i<count; i++) |
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119 { |
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120 iGainObservers[i]->MaxRampTimeChanged(*this); |
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121 } |
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122 DP_OUT(); |
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123 } |
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124 |
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125 // --------------------------------------------------------------------------- |
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126 // CAudioGainControl::ConfigureRamp |
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127 // --------------------------------------------------------------------------- |
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128 EXPORT_C TInt CAudioGainControl::ConfigureRamp(TUid aRampOperation, const TTimeIntervalMicroSeconds& aRampDuration) |
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129 { |
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130 DP_CONTEXT(CAudioGainControl::ConfigureRamp *CD1*, CtxDevSound, DPLOCAL); |
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131 DP_IN(); |
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132 |
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133 TInt err = KErrNone; |
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134 // Apply ramp |
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135 if(iHelper) |
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136 { |
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137 err = iHelper->ConfigureRamp(aRampOperation, aRampDuration); |
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138 } |
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139 |
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140 DP0_RET(err, "%d"); |
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141 } |
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142 |
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143 // --------------------------------------------------------------------------- |
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144 // from class MAudioGainControl |
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145 // CAudioGainControl::GetMaxGain |
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146 // --------------------------------------------------------------------------- |
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147 TInt CAudioGainControl::GetMaxGain(TInt& aMaxGain) const |
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148 { |
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149 DP_CONTEXT(CAudioGainControl::GetMaxGain *CD1*, CtxDevSound, DPLOCAL); |
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150 DP_IN(); |
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151 TInt err = KErrNone; |
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152 aMaxGain = KDefaultMaxGain; |
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153 DP0_RET(err, "%d"); |
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154 } |
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155 |
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156 // --------------------------------------------------------------------------- |
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157 // from class MAudioGainControl |
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158 // CAudioGainControl::GetMaxRampTime |
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159 // --------------------------------------------------------------------------- |
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160 TInt CAudioGainControl::GetMaxRampTime(TTimeIntervalMicroSeconds& aMaxRampTime) const |
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161 { |
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162 DP_CONTEXT(CAudioGainControl::GetMaxRampTime *CD1*, CtxDevSound, DPLOCAL); |
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163 DP_IN(); |
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164 aMaxRampTime = KDefaultMaxRampTime; |
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165 DP0_RET(KErrNone, "%d"); |
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166 } |
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167 |
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168 // --------------------------------------------------------------------------- |
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169 // from class MAudioGainControl |
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170 // CAudioGainControl::GetGain |
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171 // --------------------------------------------------------------------------- |
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172 TInt CAudioGainControl::GetGain(RArray<TAudioChannelGain>& aChannels) const |
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173 { |
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174 DP_CONTEXT(CAudioGainControl::GetGain *CD1*, CtxDevSound, DPLOCAL); |
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175 DP_IN(); |
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176 TInt err = KErrNone; |
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177 |
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178 aChannels.Reset(); |
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179 TInt count = iGains.Count(); |
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180 |
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181 for (TUint i(0); i < count; i++) |
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182 { |
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183 err = aChannels.Append(iGains[i]); |
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184 if(err != KErrNone) |
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185 { |
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186 break; |
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187 } |
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188 } |
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189 |
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190 DP0_RET(err, "%d"); |
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191 } |
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192 |
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193 // --------------------------------------------------------------------------- |
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194 // from class MAudioGainControl |
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195 // CAudioGainControl::SetGain |
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196 // --------------------------------------------------------------------------- |
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197 TInt CAudioGainControl::SetGain( RArray<TAudioChannelGain>& /*aChannels*/, TUid /*aRampOperation*/, |
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198 const TTimeIntervalMicroSeconds& /*aRampDuration*/) |
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199 { |
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200 DP_CONTEXT(CAudioGainControl::SetGain *CD1*, CtxDevSound, DPLOCAL); |
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201 DP_IN(); |
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202 __ASSERT_DEBUG(EFalse, Panic(EAdaptationOldSetGainCalledPanic)); |
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203 DP0_RET(KErrNone, "%d"); |
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204 } |
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205 |
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206 // --------------------------------------------------------------------------- |
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207 // from class MAudioGainControl |
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208 // CAudioGainControl::SetGain |
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209 // --------------------------------------------------------------------------- |
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210 TInt CAudioGainControl::SetGain(RArray<TAudioChannelGain>& aChannels) |
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211 { |
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212 DP_CONTEXT(CAudioGainControl::SetGain *CD1*, CtxDevSound, DPLOCAL); |
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213 DP_IN(); |
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214 TInt err = KErrNone; |
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215 |
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216 // Keep array cache |
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217 iGains.Reset(); |
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218 TUint count = aChannels.Count(); |
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219 for (TUint i(0); i < count; i++) |
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220 { |
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221 err = iGains.Append(aChannels[i]); |
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222 if(err != KErrNone) |
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223 { |
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224 break; |
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225 } |
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226 } |
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227 |
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228 // Apply gain |
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229 if(iHelper && err == KErrNone) |
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230 { |
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231 err = iHelper->SetGain(aChannels); |
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232 } |
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233 DP0_RET(KErrNone, "%d"); |
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234 } |
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235 |
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236 // --------------------------------------------------------------------------- |
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237 // from class MAudioGainControl |
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238 // CAudioGainControl::RegisterAudioGainControlObserver |
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239 // --------------------------------------------------------------------------- |
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240 TInt CAudioGainControl::RegisterAudioGainControlObserver(MAudioGainControlObserver& aObserver) |
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241 { |
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242 DP_CONTEXT(CAudioGainControl::RegisterAudioStreamObserver *CD1*, CtxDevSound, DPLOCAL); |
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243 DP_IN(); |
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244 TInt err = iGainObservers.Find(&aObserver); |
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245 if(err == KErrNotFound) |
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246 { |
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247 err = iGainObservers.Append(&aObserver); |
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248 } |
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249 else |
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250 { |
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251 err = KErrAlreadyExists; |
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252 } |
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253 DP0_RET(err, "%d"); |
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254 } |
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255 |
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256 // --------------------------------------------------------------------------- |
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257 // from class MAudioGainControl |
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258 // CAudioGainControl::UnregisterAudioGainControlObserver |
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259 // --------------------------------------------------------------------------- |
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260 void CAudioGainControl::UnregisterAudioGainControlObserver(MAudioGainControlObserver& aObserver) |
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261 { |
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262 DP_CONTEXT(CAudioGainControl::UnregisterAudioStreamObserver *CD1*, CtxDevSound, DPLOCAL); |
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263 DP_IN(); |
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264 TInt idxOrErr = iGainObservers.Find(&aObserver); |
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265 if( idxOrErr != KErrNotFound ) |
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266 { |
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267 iGainObservers.Remove(idxOrErr); |
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268 } |
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269 DP_OUT(); |
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270 } |
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271 |
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272 // end of file |