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