1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 // USER |
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20 #include "musengcamerahandler.h" |
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21 #include "musunittesting.h" |
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22 #include "musengmceutils.h" |
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23 #include "musenglogger.h" |
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24 |
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25 // SYSTEM |
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26 #include <mcemanager.h> |
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27 #include <mcecamerasource.h> |
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28 #include <mcevideostream.h> |
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29 #include <mcertpsink.h> |
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30 #include <mcedisplaysink.h> |
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31 #include <mcefilesink.h> |
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32 #include <mcesession.h> |
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33 |
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34 const TInt KMaxBrightness = 100; |
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35 const TInt KMinBrightness = -100; |
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36 const TInt KBrightnessStepSize = 10; |
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37 |
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38 |
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39 //Number of big and small zoom steps on Zoom scale |
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40 const TInt KZoomBigStepCount = 15; |
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41 const TInt KZoomSmallStepCount = KZoomBigStepCount*2; |
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42 const TInt KZoomStepMinSize = 1; |
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43 |
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44 const TInt64 KZoomFasterTime = 333333; // 1/3 second |
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45 |
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46 |
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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 TMusEngCameraHandler::TMusEngCameraHandler() : |
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52 iSession( NULL ), |
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53 iDefaultBrightness( 0 ), |
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54 iZoomInTime(0), |
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55 iZoomOutTime(0), |
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56 iSmallZoomStep( KZoomStepMinSize ), |
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57 iBigZoomStep( KZoomStepMinSize ), |
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58 iCurrentCamera( TMusEngCameraHandler::ECameraNotAvailable ), |
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59 iCameraUsage( MusSettingsKeys::EUseCameraSwapping ) |
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60 { |
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61 } |
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62 |
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63 // ----------------------------------------------------------------------------- |
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64 // From MLcCameraControl |
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65 // ----------------------------------------------------------------------------- |
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66 // |
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67 TInt TMusEngCameraHandler::LcCameraCountL() |
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68 { |
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69 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::LcCameraCountL()" ) |
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70 __ASSERT_ALWAYS( iSession != NULL, User::Leave( KErrNotReady ) ); |
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71 |
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72 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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73 __ASSERT_ALWAYS( camera != NULL, User::Leave( KErrNotReady ) ); |
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74 TInt camerasAvailable = camera->CamerasAvailable(); |
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75 |
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76 if ( camerasAvailable > 1 && |
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77 iCameraUsage != MusSettingsKeys::EUseCameraSwapping ) |
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78 { |
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79 camerasAvailable = 1; |
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80 } |
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81 |
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82 MUS_LOG1( "mus: [ENGINE] <- TMusEngCameraHandler::LcCameraCountL()", |
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83 camerasAvailable ); |
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84 return camerasAvailable; |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // From MLcCameraControl |
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89 // ----------------------------------------------------------------------------- |
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90 // |
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91 TInt TMusEngCameraHandler::CurrentLcCameraIndex() |
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92 { |
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93 return iCurrentCamera; |
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94 } |
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95 |
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96 // ----------------------------------------------------------------------------- |
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97 // From MLcCameraControl |
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98 // ----------------------------------------------------------------------------- |
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99 // |
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100 void TMusEngCameraHandler::ToggleLcCameraL() |
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101 { |
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102 TCurrentCamera newCamera( TMusEngCameraHandler::EBackCamera ); |
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103 if ( iCurrentCamera == TMusEngCameraHandler::EBackCamera ) |
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104 { |
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105 newCamera = TMusEngCameraHandler::EFrontCamera; |
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106 } |
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107 ChangeCameraL( newCamera ); |
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108 } |
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109 |
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110 // ----------------------------------------------------------------------------- |
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111 // From MLcBrightnessControl |
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112 // ----------------------------------------------------------------------------- |
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113 // |
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114 TInt TMusEngCameraHandler::MinLcBrightnessL() |
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115 { |
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116 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::MinLcBrightnessL()" ) |
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117 |
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118 // minimum brightness is not in camera info, but a constant |
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119 |
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120 MUS_LOG1( "mus: [ENGINE] <- TMusEngCameraHandler::MinLcBrightnessL(): %d", |
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121 KMinBrightness ) |
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122 |
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123 return KMinBrightness; |
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124 } |
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125 |
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126 // ----------------------------------------------------------------------------- |
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127 // From MLcBrightnessControl |
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128 // ----------------------------------------------------------------------------- |
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129 // |
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130 TInt TMusEngCameraHandler::MaxLcBrightnessL() |
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131 { |
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132 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::MaxLcBrightnessL()" ) |
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133 |
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134 // maximum brightness is not in camera info, but a constant |
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135 |
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136 MUS_LOG1( "mus: [ENGINE] <- TMusEngCameraHandler::MaxLcBrightnessL(): %d", |
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137 KMaxBrightness ) |
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138 |
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139 return KMaxBrightness; |
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140 } |
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141 |
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142 // ----------------------------------------------------------------------------- |
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143 // From MLcBrightnessControl |
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144 // ----------------------------------------------------------------------------- |
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145 // |
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146 TInt TMusEngCameraHandler::LcBrightnessL() |
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147 { |
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148 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::LcBrightnessL()" ) |
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149 |
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150 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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151 |
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152 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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153 TInt brightness = camera->BrightnessL(); |
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154 |
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155 MUS_LOG1( "mus: [ENGINE] <- TMusEngCameraHandler::LcBrightnessL(): %d", |
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156 brightness ) |
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157 |
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158 return brightness; |
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159 } |
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160 |
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161 // ----------------------------------------------------------------------------- |
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162 // From MLcBrightnessControl |
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163 // ----------------------------------------------------------------------------- |
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164 // |
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165 void TMusEngCameraHandler::SetLcBrightnessL( TInt aValue ) |
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166 { |
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167 MUS_LOG1( "mus: [ENGINE] -> TMusEngCameraHandler::SetLcBrightnessL( %d )", |
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168 aValue ) |
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169 |
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170 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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171 |
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172 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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173 camera->SetBrightnessL( aValue ); |
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174 |
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175 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::SetLcBrightnessL()" ) |
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176 } |
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177 |
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178 // ----------------------------------------------------------------------------- |
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179 // From MLcBrightnessControl |
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180 // ----------------------------------------------------------------------------- |
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181 // |
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182 void TMusEngCameraHandler::IncreaseLcBrightnessL() |
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183 { |
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184 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::IncreaseLcBrightnessL()" ) |
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185 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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186 |
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187 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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188 |
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189 TInt newBrightness = camera->BrightnessL() + KBrightnessStepSize; |
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190 |
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191 if ( newBrightness < KMaxBrightness ) |
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192 { |
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193 camera->SetBrightnessL( newBrightness ); |
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194 } |
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195 else |
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196 { |
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197 camera->SetBrightnessL( KMaxBrightness ); |
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198 } |
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199 |
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200 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::IncreaseLcBrightnessL()" ) |
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201 } |
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202 |
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203 // ----------------------------------------------------------------------------- |
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204 // From MLcBrightnessControl |
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205 // ----------------------------------------------------------------------------- |
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206 // |
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207 void TMusEngCameraHandler::DecreaseLcBrightnessL() |
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208 { |
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209 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::DecreaseLcBrightnessL()" ) |
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210 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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211 |
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212 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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213 |
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214 TInt newBrightness = camera->BrightnessL() - KBrightnessStepSize; |
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215 |
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216 if ( newBrightness > KMinBrightness ) |
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217 { |
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218 camera->SetBrightnessL( newBrightness ); |
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219 } |
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220 else |
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221 { |
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222 camera->SetBrightnessL( KMinBrightness ); |
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223 } |
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224 |
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225 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::DecreaseLcBrightnessL()" ) |
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226 } |
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227 |
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228 // ----------------------------------------------------------------------------- |
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229 // From MLcZoomControl |
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230 // ----------------------------------------------------------------------------- |
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231 // |
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232 TInt TMusEngCameraHandler::MinLcZoomL() |
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233 { |
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234 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::MinLcZoomL()" ) |
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235 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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236 |
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237 // Although we do not need camera for return value, we have to have it in |
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238 // order to have proper iCameraInfo |
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239 MusEngMceUtils::GetCameraL( *iSession ); |
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240 |
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241 MUS_LOG1( "mus: [ENGINE] <- TMusEngCameraHandler::MinLcZoomL( %d )", |
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242 iCameraInfo.iMinZoom ) |
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243 |
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244 return iCameraInfo.iMinZoom; |
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245 } |
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246 |
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247 // ----------------------------------------------------------------------------- |
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248 // From MLcZoomControl |
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249 // ----------------------------------------------------------------------------- |
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250 // |
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251 TInt TMusEngCameraHandler::MaxLcZoomL() |
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252 { |
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253 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::MaxLcZoomL()" ) |
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254 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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255 |
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256 // Although we do not need camera for return value, we have to have it in |
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257 // order to have proper iCameraInfo |
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258 MusEngMceUtils::GetCameraL( *iSession ); |
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259 |
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260 TInt maxZoom = iCameraInfo.iMaxZoom + iCameraInfo.iMaxDigitalZoom; |
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261 |
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262 MUS_LOG1( "mus: [ENGINE] Max optical zoom( %d )", |
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263 iCameraInfo.iMaxZoom ) |
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264 MUS_LOG1( "mus: [ENGINE] Max digital zoom( %d )", |
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265 iCameraInfo.iMaxDigitalZoom ) |
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266 MUS_LOG1( "mus: [ENGINE] <- TMusEngCameraHandler::MaxLcZoomL( %d )", |
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267 maxZoom ) |
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268 |
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269 return maxZoom; |
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270 } |
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271 |
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272 // ----------------------------------------------------------------------------- |
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273 // From MLcZoomControl |
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274 // ----------------------------------------------------------------------------- |
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275 // |
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276 TInt TMusEngCameraHandler::LcZoomValueL() |
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277 { |
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278 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::LcZoomValueL" ) |
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279 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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280 |
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281 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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282 |
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283 TInt currentZoom = camera->ZoomFactorL() + camera->DigitalZoomFactorL(); |
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284 |
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285 MUS_LOG1( "mus: [ENGINE] <- TMusEngCameraHandler::LcZoomValueL( %d )", |
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286 currentZoom ) |
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287 |
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288 return currentZoom; |
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289 } |
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290 |
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291 // ----------------------------------------------------------------------------- |
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292 // From MLcZoomControl |
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293 // ----------------------------------------------------------------------------- |
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294 // |
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295 void TMusEngCameraHandler::SetLcZoomValueL( TInt aValue ) |
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296 { |
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297 MUS_LOG1( "mus: [ENGINE] -> TMusEngCameraHandler::SetLcZoomValueL( %d )", |
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298 aValue ) |
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299 |
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300 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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301 __ASSERT_ALWAYS( aValue <= MaxLcZoomL() && aValue >= MinLcZoomL(), |
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302 User::Leave( KErrArgument ) ); |
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303 |
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304 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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305 |
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306 if ( aValue <= iCameraInfo.iMaxZoom ) |
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307 { |
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308 MUS_LOG( "mus: [ENGINE] Optical zoom factor increased" ) |
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309 camera->SetZoomFactorL( aValue ); |
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310 } |
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311 |
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312 if ( aValue - iCameraInfo.iMaxZoom > 0 ) |
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313 { |
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314 camera->SetDigitalZoomFactorL( aValue - iCameraInfo.iMaxZoom ); |
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315 MUS_LOG1( "mus: [ENGINE] Digital zoom factor increased to %d", |
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316 aValue - iCameraInfo.iMaxZoom ) |
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317 } |
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318 |
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319 MUS_LOG( "mus: [ENGINE] <- MusEngCameraHandler::SetLcZoomValueL()" ) |
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320 } |
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321 |
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322 // ----------------------------------------------------------------------------- |
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323 // From MLcZoomControl |
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324 // ----------------------------------------------------------------------------- |
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325 // |
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326 void TMusEngCameraHandler::LcZoomInL() |
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327 { |
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328 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::LcZoomInL()" ) |
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329 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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330 |
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331 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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332 |
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333 // First try to increase optical zoom factor. If in maximum value, try to |
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334 // increase digital zoom factor. |
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335 TInt stepSize = ZoomStepSize( iZoomInTime ); |
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336 TInt zoomFactor = camera->ZoomFactorL(); |
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337 TInt zoomDigitalFactor = camera->DigitalZoomFactorL(); |
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338 |
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339 //increate optical zoom factor |
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340 if ( zoomFactor + stepSize <= iCameraInfo.iMaxZoom ) |
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341 { |
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342 //optical zoom factor is enough |
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343 camera->SetZoomFactorL( zoomFactor + stepSize ); |
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344 stepSize = 0; |
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345 } |
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346 else if (zoomFactor < iCameraInfo.iMaxZoom) |
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347 { |
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348 stepSize -= iCameraInfo.iMaxZoom - zoomFactor; |
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349 camera->SetZoomFactorL( iCameraInfo.iMaxZoom ); |
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350 } |
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351 |
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352 //increate digital zoom factor |
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353 if (stepSize > 0) |
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354 { |
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355 if ( zoomDigitalFactor + stepSize <= iCameraInfo.iMaxDigitalZoom ) |
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356 { |
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357 camera->SetDigitalZoomFactorL( zoomDigitalFactor + stepSize ); |
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358 } |
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359 else |
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360 { |
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361 camera->SetDigitalZoomFactorL( iCameraInfo.iMaxDigitalZoom ); |
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362 MUS_LOG( "mus: [ENGINE] TMusEngCameraHandler::ZoomInL(): \ |
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363 Optical and digital zoom factors are in maximum value" ) |
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364 } |
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365 } |
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366 |
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367 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::LcZoomInL()" ) |
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368 } |
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369 |
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370 // ----------------------------------------------------------------------------- |
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371 // From MLcZoomControl |
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372 // ----------------------------------------------------------------------------- |
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373 // |
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374 void TMusEngCameraHandler::LcZoomOutL() |
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375 { |
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376 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::LcZoomOutL()" ) |
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377 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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378 |
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379 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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380 |
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381 // First try to decrease digital zoom factor. If already zero, try to |
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382 // decrease optical zoom factor. |
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383 TInt stepSize = ZoomStepSize( iZoomOutTime ); |
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384 TInt zoomFactor = camera->ZoomFactorL(); |
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385 TInt zoomDigitalFactor = camera->DigitalZoomFactorL(); |
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386 |
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387 //decreate digital zoom factor firstly |
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388 if ( zoomDigitalFactor - stepSize >= 0 ) |
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389 { |
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390 //digital zoom factor is enough |
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391 camera->SetDigitalZoomFactorL( zoomDigitalFactor - stepSize ); |
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392 stepSize = 0; |
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393 } |
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394 else if ( zoomDigitalFactor > 0 ) |
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395 { |
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396 stepSize -= zoomDigitalFactor; |
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397 camera->SetDigitalZoomFactorL( 0 ); |
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398 MUS_LOG("mus: [ENGINE] Digigal Factor to zero") |
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399 } |
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400 |
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401 //decreate optical zoom factor firstly |
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402 if ( stepSize > 0 ) |
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403 { |
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404 if ( zoomFactor - stepSize > iCameraInfo.iMinZoom ) |
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405 { |
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406 camera->SetZoomFactorL( zoomFactor - stepSize ); |
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407 } |
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408 else |
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409 { |
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410 MUS_LOG( "mus: [ENGINE] TMusEngCameraHandler::LcZoomOutL():\ |
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411 Optical and digital zoom factors are in minimum value" ) |
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412 camera->SetZoomFactorL( iCameraInfo.iMinZoom ); |
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413 } |
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414 } |
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415 |
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416 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::LcZoomOutL()" ) |
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417 } |
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418 |
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419 // ----------------------------------------------------------------------------- |
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420 // |
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421 // ----------------------------------------------------------------------------- |
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422 // |
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423 void TMusEngCameraHandler::SetSession( CMceSession* aSession ) |
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424 { |
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425 iSession = aSession; |
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426 } |
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427 |
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428 // ----------------------------------------------------------------------------- |
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429 // |
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430 // ----------------------------------------------------------------------------- |
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431 // |
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432 void TMusEngCameraHandler::InitializeL( CMceCameraSource& aCamera ) |
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433 { |
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434 aCamera.GetCameraInfo( iCameraInfo ); |
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435 |
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436 InitializeZoomStepSize(); |
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437 |
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438 iCurrentCamera = EBackCamera; |
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439 if ( iCameraUsage == MusSettingsKeys::EUseOnlySecondaryCamera ) |
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440 { |
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441 iCurrentCamera = EFrontCamera; |
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442 } |
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443 aCamera.SetCameraIndexL( (TInt)iCurrentCamera ); |
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444 } |
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445 |
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446 // ----------------------------------------------------------------------------- |
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447 // |
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448 // ----------------------------------------------------------------------------- |
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449 // |
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450 void TMusEngCameraHandler::PlayL() |
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451 { |
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452 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::PlayL()" ) |
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453 |
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454 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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455 |
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456 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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457 |
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458 if ( !camera->IsEnabled() ) |
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459 { |
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460 camera->EnableL(); |
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461 } |
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462 else |
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463 { |
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464 MUS_LOG( "mus: [ENGINE] Camera already enabled, ignore request" ) |
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465 } |
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466 |
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467 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::PlayL()" ) |
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468 } |
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469 |
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470 |
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471 // ----------------------------------------------------------------------------- |
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472 // Disable camera if not already disabled |
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473 // ----------------------------------------------------------------------------- |
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474 // |
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475 void TMusEngCameraHandler::PauseL() |
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476 { |
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477 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::PauseL()" ) |
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478 |
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479 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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480 |
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481 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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482 |
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483 if ( camera->IsEnabled() ) |
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484 { |
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485 camera->DisableL(); |
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486 } |
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487 else |
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488 { |
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489 MUS_LOG( "mus: [ENGINE] Camera already disabled, ignore request" ) |
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490 } |
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491 |
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492 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::PauseL()" ) |
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493 } |
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494 |
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495 // ----------------------------------------------------------------------------- |
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496 // |
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497 // ----------------------------------------------------------------------------- |
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498 // |
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499 TBool TMusEngCameraHandler::IsPlayingL() |
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500 { |
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501 __ASSERT_ALWAYS( iSession, User::Leave( KErrNotReady ) ); |
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502 |
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503 return ( MusEngMceUtils::GetCameraL( *iSession )->IsEnabled() ); |
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504 } |
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505 |
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506 // ----------------------------------------------------------------------------- |
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507 // |
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508 // ----------------------------------------------------------------------------- |
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509 // |
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510 void TMusEngCameraHandler::InitializeZoomStepSize() |
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511 { |
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512 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::InitializeZoomStepSize()" ) |
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513 MUS_LOG2( "iMaxZoom = %d, iMinZoom = %d", iCameraInfo.iMaxZoom, iCameraInfo.iMinZoom); |
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514 MUS_LOG2( "iMaxDigitalZoom = %d, iMaxDigitalZoomFactor = %d", |
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515 iCameraInfo.iMaxDigitalZoom, iCameraInfo.iMaxDigitalZoomFactor); |
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516 |
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517 iBigZoomStep = ( iCameraInfo.iMaxZoom + iCameraInfo.iMaxDigitalZoom - |
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518 iCameraInfo.iMinZoom ) / KZoomBigStepCount; |
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519 |
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520 if ( iBigZoomStep < KZoomStepMinSize ) |
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521 iBigZoomStep = KZoomStepMinSize; |
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522 |
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523 iSmallZoomStep = ( iCameraInfo.iMaxZoom + iCameraInfo.iMaxDigitalZoom - |
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524 iCameraInfo.iMinZoom ) / KZoomSmallStepCount; |
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525 |
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526 if ( iSmallZoomStep < KZoomStepMinSize ) |
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527 iSmallZoomStep = KZoomStepMinSize; |
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528 |
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529 MUS_LOG2( "mus: [ENGINE] iSmallZoomStep = %d, iBigZoomStep = %d", |
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530 iSmallZoomStep, iBigZoomStep ) |
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531 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::InitializeZoomStepSize()" ) |
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532 } |
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533 |
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534 // ----------------------------------------------------------------------------- |
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535 // |
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536 // ----------------------------------------------------------------------------- |
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537 // |
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538 void TMusEngCameraHandler::ReadCameraUsageKeyL() |
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539 { |
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540 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::ReadCameraUsageKeyL()" ) |
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541 |
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542 // We try to read camera usage. If we do not succeed, we use default |
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543 iCameraUsage = MusSettingsKeys::EUseCameraSwapping; |
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544 TRAPD( error, |
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545 iCameraUsage = MultimediaSharingSettings::CameraUsageL() ) |
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546 __ASSERT_ALWAYS( error == KErrNone || error == KErrNotFound, |
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547 User::Leave( error ) ); |
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548 |
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549 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::ReadCameraUsageKeyL()" ) |
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550 |
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551 } |
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552 |
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553 // ----------------------------------------------------------------------------- |
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554 // Calculate the zoom step based time escaped |
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555 // ----------------------------------------------------------------------------- |
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556 // |
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557 TInt TMusEngCameraHandler::ZoomStepSize( TInt64& aTime ) |
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558 { |
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559 TTime now; |
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560 now.HomeTime(); |
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561 TInt64 timeNow = now.Int64(); |
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562 TInt stepSize = ( ( timeNow - aTime ) <= KZoomFasterTime ) ? iBigZoomStep : iSmallZoomStep; |
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563 |
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564 aTime = now.Int64(); |
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565 |
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566 MUS_LOG1( "mus: [ENGINE] stepSize = %d", stepSize ); |
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567 |
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568 return stepSize; |
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569 } |
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570 |
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571 // ----------------------------------------------------------------------------- |
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572 // |
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573 // ----------------------------------------------------------------------------- |
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574 // |
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575 TInt TMusEngCameraHandler::CamerasAvailableL( |
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576 TMusEngCameraHandler::TCurrentCamera& aCurrentCamera ) |
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577 { |
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578 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::CamerasAvailableL()" ) |
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579 __ASSERT_ALWAYS( iSession != NULL, User::Leave( KErrNotReady ) ); |
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580 |
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581 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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582 __ASSERT_ALWAYS( camera != NULL, User::Leave( KErrNotReady ) ); |
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583 aCurrentCamera = iCurrentCamera; |
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584 TInt camerasAvailable = camera->CamerasAvailable(); |
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585 |
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586 if ( camerasAvailable > 1 && |
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587 iCameraUsage != MusSettingsKeys::EUseCameraSwapping ) |
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588 { |
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589 camerasAvailable = 1; |
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590 } |
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591 |
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592 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::CamerasAvailable()" ) |
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593 return camerasAvailable; |
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594 } |
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595 |
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596 // ----------------------------------------------------------------------------- |
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597 // |
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598 // ----------------------------------------------------------------------------- |
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599 // |
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600 void TMusEngCameraHandler::ChangeCameraL( TCurrentCamera aCurrentCamera ) |
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601 { |
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602 MUS_LOG( "mus: [ENGINE] -> TMusEngCameraHandler::ChangeCameraL()" ) |
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603 __ASSERT_ALWAYS( iSession != NULL, User::Leave( KErrNotReady ) ); |
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604 |
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605 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
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606 CMceDisplaySink* display = MusEngMceUtils::GetDisplayL( *iSession ); |
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607 |
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608 if ( camera->CamerasAvailable() ) |
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609 { |
|
610 if ( TMusEngCameraHandler::EFrontCamera == aCurrentCamera && |
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611 TMusEngCameraHandler::EFrontCamera != iCurrentCamera ) |
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612 { |
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613 MUS_LOG( "mus: [ENGINE] Set Front camera" ) |
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614 iCurrentCamera = TMusEngCameraHandler::EFrontCamera; |
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615 ChangeActiveCameraL( iCurrentCamera ); |
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616 } |
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617 else if ( TMusEngCameraHandler::EBackCamera == aCurrentCamera && |
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618 TMusEngCameraHandler::EBackCamera != iCurrentCamera ) |
|
619 { |
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620 MUS_LOG( "mus: [ENGINE] Set Back camera " ) |
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621 iCurrentCamera = TMusEngCameraHandler::EBackCamera; |
|
622 ChangeActiveCameraL( iCurrentCamera ); |
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623 } |
|
624 else if ( TMusEngCameraHandler::ECameraNotAvailable == aCurrentCamera ) |
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625 { |
|
626 if ( iCurrentCamera == TMusEngCameraHandler::EBackCamera ) |
|
627 { |
|
628 iCurrentCamera = TMusEngCameraHandler::EFrontCamera; |
|
629 } |
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630 else |
|
631 { |
|
632 iCurrentCamera = TMusEngCameraHandler::EBackCamera; |
|
633 } |
|
634 ChangeActiveCameraL( iCurrentCamera ); |
|
635 } |
|
636 } |
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637 MUS_LOG( "mus: [ENGINE] <- TMusEngCameraHandler::ChangeCameraL()" ) |
|
638 } |
|
639 |
|
640 // ----------------------------------------------------------------------------- |
|
641 // Disable camera before it changes it. It enables camera after change. |
|
642 // ----------------------------------------------------------------------------- |
|
643 // |
|
644 void TMusEngCameraHandler::ChangeActiveCameraL( TCurrentCamera aNewCamera ) |
|
645 { |
|
646 MUS_LOG( "mus: [ENGINE] -> ChangeActiveCamera()" ) |
|
647 |
|
648 CMceCameraSource* camera = MusEngMceUtils::GetCameraL( *iSession ); |
|
649 CMceDisplaySink* display = MusEngMceUtils::GetDisplayL( *iSession ); |
|
650 MUS_LOG( "mus: [ENGINE] Camera enabled ?" ) |
|
651 if ( camera->IsEnabled() ) |
|
652 { |
|
653 MUS_LOG( "mus: [ENGINE] Is view finder enabled? " ) |
|
654 if ( display->IsEnabled() ) |
|
655 { |
|
656 MUS_LOG( "mus: [ENGINE] Disable view finder" ) |
|
657 display->DisableL(); |
|
658 } |
|
659 MUS_LOG( "mus: [ENGINE] Disable camera" ) |
|
660 camera->DisableL(); |
|
661 camera->SetCameraIndexL( aNewCamera ); |
|
662 camera->EnableL(); |
|
663 display->EnableL(); |
|
664 } |
|
665 else |
|
666 { |
|
667 if ( display->IsEnabled() ) |
|
668 { |
|
669 MUS_LOG( "mus: [ENGINE] Disable view finder" ) |
|
670 display->DisableL(); |
|
671 } |
|
672 MUS_LOG( "mus: [ENGINE] set camera index" ) |
|
673 camera->SetCameraIndexL( aNewCamera ); |
|
674 MUS_LOG( "mus: [ENGINE] Enable camera" ) |
|
675 display->EnableL(); |
|
676 } |
|
677 |
|
678 MUS_LOG( "mus: [ENGINE] -> fetching new iCameraInfo..." ) |
|
679 camera->GetCameraInfo( iCameraInfo ); |
|
680 InitializeZoomStepSize(); |
|
681 } |
|