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1 /* |
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2 * Copyright (c) 2006 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: Project file for EnhancedMediaClient Utility |
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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 #include "DistanceAttenuationEffectImpl.h" |
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20 #include <DistanceAttenuationBase.h> |
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21 #include <ControlObserver.h> |
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22 |
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23 using namespace multimedia; |
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24 |
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25 CDistanceAttenuationEffect::CDistanceAttenuationEffect() |
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26 { |
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27 // No Impl |
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28 } |
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29 |
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30 CDistanceAttenuationEffect::~CDistanceAttenuationEffect() |
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31 { |
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32 delete iPrevDistanceAttenuationProxy; |
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33 delete iDistanceAttenuationProxy; |
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34 iObservers.Close(); |
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35 } |
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36 |
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37 TInt CDistanceAttenuationEffect::PostConstructor() |
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38 { |
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39 TRAPD( status, CEffectControlBase::ConstructL(KUidDistanceAttenuationEffect) ); |
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40 return status; |
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41 } |
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42 |
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43 // From MControl begins |
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44 TInt CDistanceAttenuationEffect::AddObserver( MControlObserver& aObserver ) |
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45 { |
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46 return iObservers.Append(&aObserver); |
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47 } |
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48 |
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49 TInt CDistanceAttenuationEffect::RemoveObserver( MControlObserver& aObserver ) |
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50 { |
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51 TInt index = iObservers.Find(&aObserver); |
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52 if( index != KErrNotFound ) |
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53 { |
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54 iObservers.Remove(index); |
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55 } |
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56 return index; |
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57 } |
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58 |
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59 TUid CDistanceAttenuationEffect::Type() |
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60 { |
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61 return KDistanceAttenuationEffectControl; |
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62 } |
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63 |
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64 TControlType CDistanceAttenuationEffect::ControlType() |
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65 { |
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66 return EEffectControl; |
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67 } |
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68 |
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69 // From MControl ends |
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70 |
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71 // From MEffectControl begins |
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72 TInt CDistanceAttenuationEffect::Apply() |
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73 { |
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74 return DoApply(); |
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75 } |
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76 |
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77 // From MEffectControl ends |
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78 |
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79 TInt CDistanceAttenuationEffect::DoApply() |
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80 { |
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81 TInt error(KErrNone); |
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82 if(iDistanceAttenuationProxy) |
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83 { |
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84 TRAP(error,iDistanceAttenuationProxy->ApplyL()); |
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85 } |
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86 else |
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87 { |
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88 error = KErrNotReady; |
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89 } |
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90 return error; |
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91 } |
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92 |
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93 // From MDistanceAttenuationEffect begins |
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94 |
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95 /** |
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96 * Gets the Distance Attenuation of the listener. |
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97 * @since 3.0 |
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98 * @param aRMin The source-to-listener distance below which the sound level is constant |
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99 * @param aRMax The source-to-listener distance above which the sound level is constant or zero |
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100 * @param aMuteAfterMax Indicate if the sound is muted beyond RMax |
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101 * @param aRollOffFactor Multiplier factor to source-to-listener distance |
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102 * @param aRoomRollOffFactor Multiplier factor to source-to-listener distance for Room effect. |
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103 * @return - |
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104 */ |
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105 TInt CDistanceAttenuationEffect::DistanceAttenuation( TInt& aRMin, TInt& aRMax, TBool& aMuteAfterMax, |
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106 TUint& aRollOffFactor, TUint& aRoomRollOffFactor ) |
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107 { |
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108 TInt status(KErrNone); |
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109 if(iDistanceAttenuationProxy) |
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110 { |
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111 TInt32 a,b; |
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112 TBool c; |
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113 TUint32 d,e; |
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114 iDistanceAttenuationProxy->DistanceAttenuation(a,b,c,d,e); |
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115 aRMin = a; |
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116 aRMax = b; |
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117 aMuteAfterMax = c; |
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118 aRollOffFactor = d; |
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119 aRoomRollOffFactor = e; |
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120 } |
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121 else |
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122 { |
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123 status = KErrNotReady; |
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124 } |
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125 return status; |
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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 * Get roll off factor maximum value. |
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131 * @since 3.0 |
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132 * @param aRollOffFactor The maximum multiplier factor to source-to-listener distance for Room effect. |
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133 * @return - |
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134 */ |
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135 TInt CDistanceAttenuationEffect::RollOffFactorMax( TUint& aRollOfFactorMax ) |
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136 { |
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137 TInt status(KErrNone); |
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138 if(iDistanceAttenuationProxy) |
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139 { |
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140 TUint32 factormax; |
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141 iDistanceAttenuationProxy->RollOffFactorMax(factormax); |
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142 aRollOfFactorMax = factormax; |
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143 } |
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144 else |
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145 { |
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146 status = KErrNotReady; |
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147 } |
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148 return status; |
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149 } |
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150 |
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151 /** |
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152 * Get room roll off factor maximum value. |
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153 * @since 3.0 |
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154 * @param aRollOffFactor The maximum multiplier factor to source-to-listener distance for Room effect. |
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155 * @return - |
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156 */ |
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157 TInt CDistanceAttenuationEffect::RoomRollOffFactorMax( TUint& aRoomRollOfFactorMax ) |
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158 { |
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159 TInt status(KErrNone); |
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160 if(iDistanceAttenuationProxy) |
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161 { |
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162 TUint32 factormax; |
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163 iDistanceAttenuationProxy->RoomRollOffFactorMax(factormax); |
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164 aRoomRollOfFactorMax = factormax; |
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165 } |
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166 else |
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167 { |
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168 status = KErrNotReady; |
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169 } |
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170 return status; |
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171 } |
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172 |
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173 /** |
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174 * Sets the Distance Attenuation |
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175 * @since 3.0 |
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176 * @param aRMin The source-to-listener distance below which the sound level is constant |
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177 * @param aRMax The source-to-listener distance above which the sound level is constant or zero |
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178 * @param aMuteAfterMax Indicate if the sound is muted beyond RMax |
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179 * @param aRollOffFactor Multiplier factor to source-to-listener distance |
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180 * @param aRoomRollOffFactor Multiplier factor to source-to-listener distance for Room effect. |
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181 * @return - |
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182 */ |
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183 TInt CDistanceAttenuationEffect::SetDistanceAttenuation( TInt aRMin, TInt aRMax, TBool aMuteAfterMax, |
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184 TUint aRollOffFactor, TUint aRoomRollOffFactor ) |
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185 { |
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186 TInt status(KErrNone); |
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187 if(iDistanceAttenuationProxy) |
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188 { |
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189 TInt32 a,b; |
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190 TBool c; |
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191 TUint32 d,e; |
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192 a = aRMin; |
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193 b = aRMax; |
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194 c = aMuteAfterMax; |
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195 d = aRollOffFactor; |
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196 e = aRoomRollOffFactor; |
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197 |
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198 TRAP(status,iDistanceAttenuationProxy->SetDistanceAttenuationL(a,b,c,d,e)); |
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199 } |
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200 else |
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201 { |
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202 status = KErrNotReady; |
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203 } |
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204 return status; |
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205 } |
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206 |
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207 // From MDistanceAttenuationEffect ends |
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208 |
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209 // From MAudioEffectControl |
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210 /** |
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211 * Disable the effect |
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212 * @since 5.0 |
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213 */ |
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214 TInt CDistanceAttenuationEffect::Disable() |
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215 { |
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216 TInt status(KErrNone); |
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217 if(iDistanceAttenuationProxy) |
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218 { |
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219 TRAP(status,iDistanceAttenuationProxy->DisableL()); |
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220 } |
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221 else |
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222 { |
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223 status = KErrNotReady; |
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224 } |
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225 return status; |
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226 } |
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227 |
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228 /** |
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229 * Enable the effect |
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230 * @since 5.0 |
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231 */ |
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232 TInt CDistanceAttenuationEffect::Enable() |
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233 { |
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234 TInt status(KErrNone); |
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235 RDebug::Print(_L("CDistanceAttenuationEffect::Enable() [%x]"),iDistanceAttenuationProxy); |
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236 if(iDistanceAttenuationProxy) |
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237 { |
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238 TRAP(status,iDistanceAttenuationProxy->EnableL()); |
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239 } |
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240 else |
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241 { |
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242 status = KErrNotReady; |
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243 } |
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244 return status; |
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245 } |
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246 |
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247 /** |
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248 * Enforce the effect. |
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249 * @since 5.0 |
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250 * @param aEnforced Indicate the effect is to be enforced or not. ETrue = Enforced. |
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251 */ |
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252 TInt CDistanceAttenuationEffect::Enforce( TBool &aEnforced ) |
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253 { |
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254 TInt status(KErrNone); |
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255 if(iDistanceAttenuationProxy) |
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256 { |
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257 TRAP(status,iDistanceAttenuationProxy->EnforceL(aEnforced)); |
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258 } |
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259 else |
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260 { |
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261 status = KErrNotReady; |
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262 } |
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263 return status; |
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264 } |
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265 |
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266 /** |
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267 * Check if this effect object currently has update rights. |
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268 * A client can lose update rights in some hardware platforms where there are a limited |
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269 * number of instances of an effect that can exist at the same time. When an effect instance |
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270 * has lost update rights the user can still change settings, but any calls to Apply the |
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271 * settings will be deferred until update rights are regained. |
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272 * @since 5.0 |
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273 * @param ETrue if this object currently has rights to update the settings of this effect, |
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274 * EFalse otherwise. |
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275 */ |
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276 TInt CDistanceAttenuationEffect::HaveUpdateRights(TBool &aHaveUpdateRights) |
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277 { |
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278 TInt status(KErrNone); |
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279 if(iDistanceAttenuationProxy) |
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280 { |
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281 aHaveUpdateRights = iDistanceAttenuationProxy->HaveUpdateRights(); |
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282 } |
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283 else |
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284 { |
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285 status = KErrNotReady; |
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286 } |
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287 return status; |
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288 } |
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289 |
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290 /** |
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291 * Check if the effect is enabled |
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292 * @since 5.0 |
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293 * @param ETrue if the effect is enabled, EFalse if the effect is disabled. |
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294 */ |
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295 TInt CDistanceAttenuationEffect::IsEnabled(TBool &aEnabled) |
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296 { |
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297 TInt status(KErrNone); |
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298 if(iDistanceAttenuationProxy) |
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299 { |
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300 aEnabled = iDistanceAttenuationProxy->IsEnabled(); |
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301 } |
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302 else |
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303 { |
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304 status = KErrNotReady; |
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305 } |
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306 return status; |
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307 } |
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308 |
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309 /** |
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310 * Check if the effect is enforced. |
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311 * @since 5.0 |
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312 * @param ETrue if the effect is enforced, EFalse if the effect isn ot enforced. |
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313 */ |
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314 TInt CDistanceAttenuationEffect::IsEnforced(TBool &aEnforced) |
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315 { |
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316 TInt status(KErrNone); |
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317 if(iDistanceAttenuationProxy) |
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318 { |
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319 aEnforced = iDistanceAttenuationProxy->IsEnforced(); |
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320 } |
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321 else |
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322 { |
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323 status = KErrNotReady; |
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324 } |
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325 return status; |
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326 } |
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327 |
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328 /* |
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329 * Get the unique identifier of the audio effect |
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330 * @since 5.0 |
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331 * @param Unique identifier of the audio effect object. |
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332 */ |
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333 TInt CDistanceAttenuationEffect::Uid(TUid &aUid) |
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334 { |
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335 TInt status(KErrNone); |
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336 if(iDistanceAttenuationProxy) |
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337 { |
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338 aUid = iDistanceAttenuationProxy->Uid(); |
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339 } |
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340 else |
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341 { |
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342 status = KErrNotReady; |
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343 } |
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344 return status; |
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345 } |
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346 // From MAudioEffectControl Ends |
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347 |
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348 |
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349 // From CEffectControlBase begins |
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350 void CDistanceAttenuationEffect::Event( TEffectControlEvent aEvent ) |
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351 { |
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352 TInt status(KErrNone); |
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353 // Controller Loaded with ECIBuilderCreated |
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354 if ( aEvent == ECIBuilderCreated ) |
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355 { |
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356 RDebug::Print(_L("Deleting Proxy")); |
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357 status = DeleteEffectProxy(); |
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358 RDebug::Print(_L("Deleting Proxy [%d]"),status); |
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359 status = CreateEffectProxy(); |
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360 RDebug::Print(_L("Creating Proxy [%d]"),status); |
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361 if(status == KErrNone) |
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362 { |
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363 SavePreviousSettings(); |
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364 } |
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365 else |
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366 { |
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367 for ( TInt i = 0; i < iObservers.Count(); i++ ) |
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368 { |
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369 iObservers[i]->Event(this,MAudioEffectControl::KDisabled,NULL); |
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370 } |
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371 } |
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372 } |
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373 else if ( aEvent == EMessageHandlerDeleted ) |
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374 { |
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375 if(status == KErrNone) |
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376 { |
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377 DeleteEffectProxy(); |
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378 } |
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379 } |
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380 } |
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381 |
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382 // From CEffectControlBase ends |
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383 |
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384 TInt CDistanceAttenuationEffect::CreateEffectProxy() |
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385 { |
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386 TInt status(KErrNone); |
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387 status = GetMessageHandle(iMsgHndlrHandlePckg); |
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388 if(status != KErrNone) |
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389 { |
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390 return status; |
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391 } |
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392 iCustomCommand = GetCustomCommand(); |
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393 if(!iCustomCommand) |
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394 { |
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395 return KErrNotReady; |
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396 } |
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397 |
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398 TRAP(status,iDistanceAttenuationProxy = CDistanceAttenuationProxy::NewL(iMsgHndlrHandlePckg, *iCustomCommand, NULL)); |
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399 if(status == KErrNone) |
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400 { |
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401 TRAP(status,iDistanceAttenuationProxy->RegisterObserverL(*this)); |
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402 } |
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403 |
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404 return status; |
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405 } |
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406 |
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407 TInt CDistanceAttenuationEffect::DeleteEffectProxy() |
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408 { |
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409 TInt status(KErrNone); |
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410 if(iDistanceAttenuationProxy) |
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411 { |
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412 iPrevDistanceAttenuationProxy = iDistanceAttenuationProxy; |
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413 } |
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414 iDistanceAttenuationProxy = NULL; |
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415 return status; |
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416 } |
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417 |
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418 TInt CDistanceAttenuationEffect::SavePreviousSettings() |
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419 { |
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420 TInt status(KErrNone); |
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421 if(iPrevDistanceAttenuationProxy) |
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422 { |
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423 TBool enforce = iPrevDistanceAttenuationProxy->IsEnforced(); |
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424 iDistanceAttenuationProxy->EnforceL(enforce); |
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425 |
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426 TBool enable = iPrevDistanceAttenuationProxy->IsEnabled(); |
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427 if(enable) |
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428 { |
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429 iDistanceAttenuationProxy->EnableL(); |
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430 } |
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431 |
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432 delete iPrevDistanceAttenuationProxy; |
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433 iPrevDistanceAttenuationProxy = NULL; |
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434 } |
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435 return status; |
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436 } |
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437 |
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438 void CDistanceAttenuationEffect::EffectChanged( const CAudioEffect* /*aObservedEffect*/, TUint8 aEvent ) |
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439 { |
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440 for ( TInt i = 0; i < iObservers.Count(); i++ ) |
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441 { |
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442 iObservers[i]->Event(this,aEvent,NULL); |
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443 } |
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444 } |
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445 |
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446 // End of file |