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1 /* |
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2 * Copyright (c) 2008-2009 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: Classes for thumbnail-related tasks. |
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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 /** |
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22 * @internal reviewed 31/07/2007 by Simon Brooks |
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23 */ |
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24 |
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25 #include "glxtngeneratethumbnailtask.h" |
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26 |
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27 #include <bitdev.h> |
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28 #include <fbs.h> |
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29 #include <glxassert.h> |
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30 #include <glxlog.h> |
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31 #include <glxtracer.h> |
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32 #include <glxthumbnail.h> |
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33 |
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34 #include "glxtnfileinfo.h" |
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35 #include "glxtnfileutility.h" |
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36 #include "glxtnimageutility.h" |
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37 #include "glxtnsavethumbnailtask.h" |
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38 #include "glxtntaskmanager.h" |
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39 #include "glxtnthumbnailrequest.h" |
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40 #include "glxtnvideoutility.h" |
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41 #include "mglxtnthumbnailcreatorclient.h" |
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42 |
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43 // ----------------------------------------------------------------------------- |
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44 // NewL |
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45 // ----------------------------------------------------------------------------- |
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46 // |
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47 CGlxtnGenerateThumbnailTask* CGlxtnGenerateThumbnailTask::NewL( |
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48 const TGlxThumbnailRequest& aRequestInfo, |
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49 CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient) |
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50 { |
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51 TRACER("CGlxtnGenerateThumbnailTask::NewL()"); |
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52 CGlxtnGenerateThumbnailTask* task |
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53 = new (ELeave) CGlxtnGenerateThumbnailTask( |
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54 aRequestInfo, aFileUtility, aClient); |
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55 CleanupStack::PushL(task); |
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56 task->ConstructL(aRequestInfo.iBitmapHandle); |
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57 CleanupStack::Pop( task ); |
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58 return task; |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // Constructor |
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63 // ----------------------------------------------------------------------------- |
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64 // |
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65 CGlxtnGenerateThumbnailTask::CGlxtnGenerateThumbnailTask( |
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66 const TGlxThumbnailRequest& aRequestInfo, |
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67 CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient) : |
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68 CGlxtnLoadThumbnailTask( KGlxtnTaskIdGenerateThumbnail, |
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69 aRequestInfo, aFileUtility, aClient ) |
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70 { |
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71 TRACER("CGlxtnGenerateThumbnailTask::CGlxtnGenerateThumbnailTask()"); |
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72 } |
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73 |
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74 // ----------------------------------------------------------------------------- |
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75 // ConstructL |
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76 // ----------------------------------------------------------------------------- |
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77 // |
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78 void CGlxtnGenerateThumbnailTask::ConstructL(TInt aBitmapHandle) |
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79 { |
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80 TRACER("CGlxtnGenerateThumbnailTask::ConstructL()"); |
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81 CGlxtnLoadThumbnailTask::ConstructL( aBitmapHandle ); |
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82 |
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83 iImageUtility = new (ELeave) CGlxtnImageUtility(iFileUtility.FsSession()); |
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84 } |
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85 |
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86 // ----------------------------------------------------------------------------- |
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87 // Destructor |
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88 // ----------------------------------------------------------------------------- |
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89 // |
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90 CGlxtnGenerateThumbnailTask::~CGlxtnGenerateThumbnailTask() |
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91 { |
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92 TRACER("CGlxtnGenerateThumbnailTask::~CGlxtnGenerateThumbnailTask()"); |
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93 delete iImageUtility; |
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94 delete iVideoUtility; |
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95 delete iImage; |
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96 } |
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97 |
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98 // ----------------------------------------------------------------------------- |
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99 // SetManager |
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100 // ----------------------------------------------------------------------------- |
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101 // |
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102 void CGlxtnGenerateThumbnailTask::SetManager(CGlxtnTaskManager* aManager) |
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103 { |
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104 TRACER("void CGlxtnGenerateThumbnailTask::SetManager()"); |
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105 iTaskManager = aManager; |
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106 } |
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107 |
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108 // ----------------------------------------------------------------------------- |
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109 // DoStartL |
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110 // ----------------------------------------------------------------------------- |
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111 // |
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112 TBool CGlxtnGenerateThumbnailTask::DoStartL(TRequestStatus& aStatus) |
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113 { |
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114 TRACER("CGlxtnGenerateThumbnailTask::DoStartL()"); |
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115 iInfo = new (ELeave) CGlxtnFileInfo; |
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116 Client().FetchFileInfoL(iInfo, ItemId(), &aStatus); |
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117 iState = EStateFetchingUri; |
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118 |
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119 return ETrue; // Request has been issued |
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120 } |
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121 |
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122 // ----------------------------------------------------------------------------- |
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123 // DoCancel |
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124 // ----------------------------------------------------------------------------- |
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125 // |
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126 void CGlxtnGenerateThumbnailTask::DoCancel() |
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127 { |
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128 TRACER("void CGlxtnGenerateThumbnailTask::DoCancel()"); |
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129 CGlxtnLoadThumbnailTask::DoCancel(); |
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130 |
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131 iImageUtility->Cancel(); |
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132 |
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133 if ( iVideoUtility ) |
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134 { |
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135 iVideoUtility->Cancel(); |
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136 } |
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137 |
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138 iFileUtility.ClearBadFileMarker(); |
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139 } |
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140 |
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141 // ----------------------------------------------------------------------------- |
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142 // DoRunL |
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143 // ----------------------------------------------------------------------------- |
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144 // |
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145 TBool CGlxtnGenerateThumbnailTask::DoRunL(TRequestStatus& aStatus) |
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146 { |
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147 TRACER("TBool CGlxtnGenerateThumbnailTask::DoRunL()"); |
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148 TInt error = aStatus.Int(); |
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149 |
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150 TBool active = EFalse; |
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151 |
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152 if ( KErrNone == error ) |
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153 { |
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154 switch ( iState ) |
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155 { |
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156 case EStateFetchingUri: |
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157 { |
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158 User::LeaveIfNull(iInfo); |
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159 iBadFileMarkerNotNeededFlag = ETrue; |
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160 |
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161 iInfo->IdentifyFileL(iVideo, iProtected); |
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162 // leave if file is DRM protected and client has no DRM |
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163 // capablity |
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164 if ( iProtected && !iDrmAllowed ) |
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165 { |
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166 User::Leave(KErrAccessDenied); |
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167 } |
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168 |
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169 if ( !LoadThumbnailL( aStatus ) ) |
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170 { |
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171 iBadFileMarkerNotNeededFlag = EFalse; |
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172 iFileUtility.CheckBadFileListL( iInfo->FilePath() ); |
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173 HighQualityDecodeL( aStatus ); |
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174 } |
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175 active = ETrue; |
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176 } |
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177 break; |
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178 |
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179 case EStateLoading: |
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180 active = HandleLoadedThumbnailL( aStatus ); |
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181 break; |
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182 |
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183 case EStateDecodingThumbnail: |
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184 // Nothing to do |
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185 break; |
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186 |
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187 case EStateDecodingImage: |
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188 { |
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189 iImageUtility->FreeDecoder(); |
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190 |
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191 // Resize empty bitmap to required size |
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192 TSize targetSize(iRequestedSize); |
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193 iImageUtility->AdjustSize(targetSize, iImage->SizeInPixels()); |
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194 User::LeaveIfError(iThumbnail->Resize(targetSize)); |
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195 |
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196 iImageUtility->FilterImageL(&aStatus, iImage, iImage, iThumbnail); |
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197 iState = EStateFiltering; |
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198 active = ETrue; |
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199 } |
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200 break; |
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201 |
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202 case EStateFiltering: |
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203 { |
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204 TSize targetSize(iRequestedSize); |
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205 const TSize srcSize = iImage->SizeInPixels(); |
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206 iImageUtility->AdjustSize(targetSize, iImage->SizeInPixels()); |
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207 iImageUtility->ScaleImageL(aStatus, *iImage, srcSize, *iThumbnail, targetSize); |
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208 iState = EStateScaling; |
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209 active = ETrue; |
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210 } |
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211 break; |
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212 |
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213 case EStateScaling: |
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214 { |
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215 User::LeaveIfError(iThumbnail->SetDisplayMode(KGlxThumbnailDisplayMode)); |
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216 |
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217 // Create task to save generated thumbnail |
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218 if ( Storage() && !iInfo->iTemporary |
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219 && !SizeRequiresDrmRights() |
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220 && iFileUtility.IsPersistentSize(iRequestedSize) ) |
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221 { |
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222 CGlxtnSaveThumbnailTask* task |
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223 = CGlxtnSaveThumbnailTask::NewL(ItemId(), iInfo, |
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224 iRequestedSize, iThumbnail, Storage()); |
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225 iThumbnail = NULL; // Task has ownership |
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226 iInfo = NULL; // Task has ownership |
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227 iTaskManager->AddTaskL(task); |
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228 } |
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229 break; |
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230 } |
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231 |
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232 default: |
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233 GLX_ASSERT_ALWAYS( EFalse, Panic( EGlxPanicIllegalState ), |
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234 "CGlxtnGenerateThumbnailTask: Illegal state" ); |
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235 break; |
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236 } |
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237 } |
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238 else |
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239 { |
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240 if ( EStateLoading == iState ) |
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241 { |
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242 // Loading failed - generate new thumbnail instead |
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243 HighQualityDecodeL( aStatus ); |
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244 active = ETrue; |
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245 } |
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246 } |
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247 |
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248 if ( !active ) |
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249 { |
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250 if ( !iBadFileMarkerNotNeededFlag ) |
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251 { |
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252 iFileUtility.ClearBadFileMarker(); |
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253 } |
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254 Client().ThumbnailFetchComplete(ItemId(), |
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255 EGlxThumbnailQualityHigh, error); |
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256 } |
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257 |
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258 return active; |
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259 } |
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260 |
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261 // ----------------------------------------------------------------------------- |
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262 // DoRunError |
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263 // ----------------------------------------------------------------------------- |
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264 // |
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265 TBool CGlxtnGenerateThumbnailTask::DoRunError(TInt aError) |
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266 { |
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267 TRACER("TBool CGlxtnGenerateThumbnailTask::DoRunError(TInt aError)"); |
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268 iFileUtility.ClearBadFileMarker(); |
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269 Client().ThumbnailFetchComplete(ItemId(), EGlxThumbnailQualityHigh, aError); |
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270 |
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271 return EFalse; |
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272 } |
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273 |
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274 // --------------------------------------------------------------------------- |
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275 // HighQualityDecodeL |
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276 // --------------------------------------------------------------------------- |
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277 // |
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278 void CGlxtnGenerateThumbnailTask::HighQualityDecodeL( |
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279 TRequestStatus& aStatus ) |
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280 { |
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281 TRACER("void CGlxtnGenerateThumbnailTask::HighQualityDecodeL()"); |
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282 RArray<TSize> targetSizes; |
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283 CleanupClosePushL(targetSizes); |
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284 targetSizes.AppendL( TSize(iRequestedSize) ); |
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285 if ( iVideo ) |
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286 { |
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287 iVideoUtility = new (ELeave) CGlxtnVideoUtility; |
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288 iVideoUtility->GetVideoFrameL( &aStatus, iImage, iInfo->FilePath(), targetSizes, KGlxThumbnailDisplayMode ); |
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289 } |
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290 else |
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291 { |
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292 iImage = iImageUtility->DecodeImageL( aStatus, iInfo->FilePath(), |
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293 targetSizes, KGlxThumbnailDisplayMode ); |
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294 } |
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295 CleanupStack::PopAndDestroy(&targetSizes); |
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296 iState = EStateDecodingImage; |
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297 } |
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298 |
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299 // ----------------------------------------------------------------------------- |
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300 // SizeRequiresDrmRights |
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301 // ----------------------------------------------------------------------------- |
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302 // |
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303 TBool CGlxtnGenerateThumbnailTask::SizeRequiresDrmRights() |
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304 { |
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305 TRACER("TBool CGlxtnGenerateThumbnailTask::SizeRequiresDrmRights()"); |
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306 if ( iProtected ) |
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307 { |
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308 if ( iVideo ) |
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309 { |
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310 return ETrue; |
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311 } |
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312 |
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313 // Rights are required if thumbnail doesn't fit in KGlxThumbnailDrmWidth |
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314 // by KGlxThumbnailDrmHeight box either portrait or landscape |
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315 if ( (iRequestedSize.iWidth > KGlxThumbnailDrmWidth |
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316 || iRequestedSize.iHeight > KGlxThumbnailDrmHeight) |
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317 && (iRequestedSize.iWidth > KGlxThumbnailDrmHeight |
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318 || iRequestedSize.iHeight > KGlxThumbnailDrmWidth) ) |
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319 { |
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320 return ETrue; |
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321 } |
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322 |
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323 const TSize& imageSize(iImageUtility->OriginalSize()); |
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324 |
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325 // Rights are required if thumbnail is greater than 25% of image size |
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326 // Due to preserving aspect ratio, this will only happen if both width |
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327 // and height are greater than half the image width and height |
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328 if ( iRequestedSize.iWidth > imageSize.iWidth / 2 |
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329 && iRequestedSize.iHeight> imageSize.iHeight / 2 ) |
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330 { |
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331 return ETrue; |
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332 } |
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333 } |
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334 |
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335 return EFalse; |
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336 } |