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1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Implementation of Camera image encoder |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 #include <imageconversion.h> |
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22 #include <ExifRead.h> |
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23 #include <ecam.h> // MCameraBuffer |
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24 |
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25 #include <eikenv.h> |
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26 |
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27 #include "camlogging.h" |
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28 #include "camfilesaveutility.h" |
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29 #include "cambuffershare.h" |
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30 |
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31 #include "camimageencoder.h" |
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32 |
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33 // =========================================================================== |
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34 // Local constants |
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35 |
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36 // Encoding flags |
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37 static const CImageEncoder::TOptions KConversionOptions = |
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38 CImageEncoder::EOptionAlwaysThread; |
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39 |
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40 // Other constants |
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41 static const TInt KImageIndex = 0; |
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42 static const TInt KPriority = CActive::EPriorityHigh; |
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43 |
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44 _LIT8( KMimeTypeDesc8, "image/jpeg" ); |
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45 |
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46 |
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47 // =========================================================================== |
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48 // public constructor and destructor |
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49 |
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50 // --------------------------------------------------------------------------- |
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51 // 2-phase constructor |
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52 // --------------------------------------------------------------------------- |
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53 // |
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54 CCamImageEncoder* |
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55 CCamImageEncoder::NewL( MCamImageEncoderObserver& aObserver ) |
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56 { |
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57 CCamImageEncoder* self = |
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58 new (ELeave) CCamImageEncoder( aObserver ); |
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59 |
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60 CleanupStack::PushL( self ); |
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61 self->ConstructL(); |
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62 CleanupStack::Pop( self ); |
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63 |
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64 return self; |
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65 } |
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66 |
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67 // --------------------------------------------------------------------------- |
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68 // Destructor |
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69 // --------------------------------------------------------------------------- |
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70 // |
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71 CCamImageEncoder::~CCamImageEncoder() |
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72 { |
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73 PRINT( _L("Camera => ~CCamImageEncoder") ); |
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74 Cancel(); |
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75 |
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76 ReleaseEncoder(); |
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77 SetInputBuffer( NULL ); |
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78 |
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79 PRINT( _L("Camera <= ~CCamImageEncoder") ); |
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80 } |
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81 |
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82 // =========================================================================== |
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83 // public methods |
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84 |
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85 // --------------------------------------------------------------------------- |
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86 // StartConversionL |
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87 // --------------------------------------------------------------------------- |
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88 // |
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89 void |
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90 CCamImageEncoder::StartConversionL( CCamBufferShare* aBuffer ) |
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91 { |
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92 PRINT( _L("Camera => CCamImageEncoder::StartConversionL") ); |
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93 |
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94 // Cancel any previous action |
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95 Cancel(); |
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96 |
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97 ReleaseEncoder(); |
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98 |
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99 if( aBuffer |
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100 && aBuffer->SharedBuffer() ) |
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101 { |
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102 // Store the bitmap data. |
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103 // Need to release old buffer and reserve given one. |
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104 SetInputBuffer( aBuffer ); |
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105 |
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106 PRINT( _L("Camera <> CCamImageEncoder: Creating encoder..") ); |
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107 iEncoder = CImageEncoder::DataNewL( iEncodedData, |
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108 KMimeTypeDesc8(), |
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109 KConversionOptions ); |
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110 |
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111 PRINT( _L("Camera <> CCamImageEncoder: get source bitmap..") ); |
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112 MCameraBuffer* buffer( iSharedInput->SharedBuffer() ); |
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113 CFbsBitmap& bitmap( buffer->BitmapL( KImageIndex ) ); |
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114 |
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115 |
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116 PRINT( _L("Camera <> CCamImageEncoder: start conversion..") ); |
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117 iEncoder->Convert( &iStatus, bitmap ); |
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118 SetActive(); |
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119 } |
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120 else |
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121 { |
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122 PRINT( _L("Camera <> CCamImageEncoder: No bitmap provided, leave..") ); |
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123 User::Leave( KErrNotFound ); |
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124 } |
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125 |
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126 PRINT( _L("Camera <= CCamImageEncoder::StartConversionL") ); |
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127 } |
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128 |
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129 |
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130 // =========================================================================== |
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131 // from CActive |
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132 |
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133 // --------------------------------------------------------------------------- |
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134 // virtual DoCancel |
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135 // --------------------------------------------------------------------------- |
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136 // |
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137 void |
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138 CCamImageEncoder::DoCancel() |
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139 { |
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140 PRINT( _L("Camera => CCamImageEncoder::DoCancel") ); |
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141 |
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142 if( iEncoder ) |
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143 { |
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144 iEncoder->Cancel(); |
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145 } |
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146 |
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147 ReleaseEncoder(); |
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148 SetInputBuffer( NULL ); |
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149 |
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150 PRINT( _L("Camera <= CCamImageEncoder::DoCancel") ); |
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151 } |
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152 |
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153 |
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154 // --------------------------------------------------------------------------- |
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155 // virtual RunL |
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156 // --------------------------------------------------------------------------- |
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157 // |
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158 void |
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159 CCamImageEncoder::RunL() |
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160 { |
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161 PRINT1( _L("Camera => CCamImageEncoder::RunL, iStatus:%d"), iStatus.Int() ); |
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162 |
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163 switch( iStatus.Int() ) |
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164 { |
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165 case KErrNone : |
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166 { |
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167 SetInputBuffer( NULL ); |
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168 |
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169 // Notify observer |
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170 NotifyObserver( KErrNone ); |
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171 |
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172 // Source data and encoder not needed anymore |
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173 ReleaseEncoder(); |
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174 |
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175 break; |
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176 } |
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177 case KErrCancel : |
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178 default : |
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179 { |
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180 User::Leave( iStatus.Int() ); |
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181 break; |
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182 } |
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183 } |
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184 |
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185 PRINT( _L("Camera <= CCamImageEncoder::RunL") ); |
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186 } |
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187 |
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188 |
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189 // --------------------------------------------------------------------------- |
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190 // virtual RunError |
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191 // --------------------------------------------------------------------------- |
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192 // |
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193 TInt |
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194 CCamImageEncoder::RunError( TInt aError ) |
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195 { |
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196 PRINT1( _L("Camera <= CCamImageEncoder::RunError(%d)"), aError ); |
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197 |
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198 ReleaseEncoder(); |
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199 SetInputBuffer( NULL ); |
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200 |
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201 // Leave has occurred in RunL. |
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202 // Notify observer with error and NULL data. |
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203 NotifyObserver( aError ); |
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204 |
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205 PRINT( _L("Camera <= CCamImageEncoder::RunError") ); |
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206 return KErrNone; |
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207 } |
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208 |
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209 |
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210 // =========================================================================== |
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211 // Private methods |
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212 |
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213 // --------------------------------------------------------------------------- |
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214 // SetInputBuffer |
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215 // --------------------------------------------------------------------------- |
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216 // |
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217 void |
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218 CCamImageEncoder::SetInputBuffer( CCamBufferShare* aBuffer ) |
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219 { |
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220 if( iSharedInput ) |
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221 { |
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222 iSharedInput->Release(); |
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223 iSharedInput = NULL; |
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224 } |
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225 |
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226 iSharedInput = aBuffer; |
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227 |
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228 if( iSharedInput ) |
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229 { |
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230 iSharedInput->Reserve(); |
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231 } |
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232 } |
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233 |
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234 void |
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235 CCamImageEncoder::ReleaseEncoder() |
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236 { |
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237 delete iEncoder; |
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238 iEncoder = NULL; |
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239 |
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240 delete iEncodedData; |
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241 iEncodedData = NULL; |
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242 } |
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243 |
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244 |
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245 // --------------------------------------------------------------------------- |
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246 // NotifyObservers |
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247 // --------------------------------------------------------------------------- |
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248 // |
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249 void |
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250 CCamImageEncoder::NotifyObserver( TInt aStatus ) |
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251 { |
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252 iObserver.ImageEncoded( aStatus, iEncodedData ); |
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253 iEncodedData = NULL; // Ownership to observer |
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254 } |
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255 |
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256 // =========================================================================== |
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257 // private constructors |
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258 |
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259 // --------------------------------------------------------------------------- |
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260 // 2nd phase constructor |
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261 // --------------------------------------------------------------------------- |
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262 // |
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263 void |
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264 CCamImageEncoder::ConstructL() |
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265 { |
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266 CActiveScheduler::Add( this ); |
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267 } |
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268 |
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269 // --------------------------------------------------------------------------- |
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270 // 1st phase constructor |
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271 // --------------------------------------------------------------------------- |
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272 // |
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273 CCamImageEncoder::CCamImageEncoder( MCamImageEncoderObserver& aObserver ) |
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274 : CActive ( KPriority ), |
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275 iObserver( aObserver ) |
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276 { |
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277 } |
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278 |
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279 // end of file |