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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: Cache implementation for media items sharing the same Id space |
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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 "glxcache.h" |
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22 |
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23 #include <glxassert.h> |
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24 #include <mpxmediadrmdefs.h> // for DRM attributes |
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25 #include <mpxmediacontainerdefs.h> |
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26 #include <mpxmediacollectiondetaildefs.h> |
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27 #include <glxthumbnailattributeinfo.h> |
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28 #include <glxtracer.h> |
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29 #include <lbsposition.h> //for TCoordinate |
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30 |
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31 #include "glxcachemanager.h" |
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32 #include "glxmedialist.h" |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // Constructor |
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36 // ----------------------------------------------------------------------------- |
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37 // |
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38 CGlxCache::CGlxCache( const TGlxIdSpaceId& aIdSpaceId, CGlxCacheManager* aCacheManager ) |
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39 : iIdSpaceId( aIdSpaceId ), iCacheManager(aCacheManager) |
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40 { |
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41 TRACER("CGlxCache::CGlxCache"); |
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42 } |
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43 |
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44 // ----------------------------------------------------------------------------- |
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45 // Destructor |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 CGlxCache::~CGlxCache() |
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49 { |
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50 TRACER("CGlxCache::Destructor"); |
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51 iItemPool.ResetAndDestroy(); |
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52 } |
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53 |
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54 // ----------------------------------------------------------------------------- |
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55 // IdSpaceId |
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56 // ----------------------------------------------------------------------------- |
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57 // |
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58 TGlxIdSpaceId CGlxCache::IdSpaceId() const |
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59 { |
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60 TRACER("CGlxCache::IdSpaceId"); |
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61 |
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62 return iIdSpaceId; |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // return a media object or null |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 CGlxMedia* CGlxCache::Media( const TGlxMediaId& aId ) const |
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70 { |
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71 TRACER("CGlxCache::Media"); |
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72 |
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73 TInt index = iItemPool.FindInOrder(aId, (&MediaItemOrderByKey)); |
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74 if ( KErrNotFound != index ) |
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75 { |
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76 return iItemPool[index]; |
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77 } |
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78 |
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79 return NULL; |
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80 } |
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81 |
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82 // ----------------------------------------------------------------------------- |
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83 // FindItemForceCreateL |
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84 // ----------------------------------------------------------------------------- |
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85 // |
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86 CGlxMedia* CGlxCache::FindItemForceCreateL( const TGlxMediaId& aId ) |
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87 { |
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88 TRACER("CGlxCache::FindItemForceCreateL"); |
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89 |
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90 CGlxMedia* media = Media( aId ); |
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91 |
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92 if ( !media ) |
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93 { |
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94 media = CreateItemL( aId ); |
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95 } |
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96 |
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97 return media; |
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98 } |
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99 |
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100 // ----------------------------------------------------------------------------- |
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101 // CreateItemL |
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102 // ----------------------------------------------------------------------------- |
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103 // |
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104 CGlxMedia* CGlxCache::CreateItemL(const TGlxMediaId& aId) |
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105 { |
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106 TRACER("CGlxCache::CreateItemL"); |
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107 |
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108 CGlxMedia* item = NULL; |
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109 |
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110 iItemPool.ReserveL( iItemPool.Count() + 1 ); |
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111 item = new (ELeave) CGlxMedia(aId); |
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112 TLinearOrder<CGlxMedia> orderer (&MediaItemOrderById); |
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113 iItemPool.InsertInOrder(item, orderer); |
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114 |
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115 // Safe to fail, since if the media objects is not used by any lists, |
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116 // garbage collection will simply delete it |
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117 RPointerArray<CGlxMediaList>& mediaLists = CGlxMediaList::MediaListsL(); |
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118 |
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119 TInt count = mediaLists.Count(); |
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120 item->ReserveUsersL(count); |
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121 for (TInt i = 0; i < count; i++) |
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122 { |
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123 mediaLists[i]->OfferMedia(iIdSpaceId, item); |
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124 } |
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125 |
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126 return item; |
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127 } |
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128 |
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129 // ----------------------------------------------------------------------------- |
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130 // MediaUpdatedL |
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131 // ----------------------------------------------------------------------------- |
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132 // |
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133 void CGlxCache::MediaUpdatedL(const CMPXMedia& aMedia) |
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134 { |
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135 TRACER("CGlxCache::MediaUpdatedL"); |
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136 |
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137 if (aMedia.IsSupported(KMPXMediaArrayContents)) |
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138 { |
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139 CMPXMediaArray* mediaArray = aMedia.ValueCObjectL<CMPXMediaArray>(KMPXMediaArrayContents); |
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140 CleanupStack::PushL(mediaArray); |
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141 |
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142 TInt arrayCount = mediaArray->Count(); |
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143 GLX_DEBUG2("CGlxCache::MediaUpdatedL() arrayCount=%d", arrayCount); |
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144 for (TInt count = 0; count < arrayCount; ++count) |
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145 { |
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146 UpdateMediaL(*((*mediaArray)[count])); |
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147 } |
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148 |
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149 CleanupStack::PopAndDestroy(mediaArray); |
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150 } |
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151 else |
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152 { |
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153 UpdateMediaL(aMedia); |
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154 } |
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155 } |
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156 |
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157 // ----------------------------------------------------------------------------- |
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158 // UpdateMediaL |
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159 // ----------------------------------------------------------------------------- |
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160 void CGlxCache::UpdateMediaL(const CMPXMedia& aMedia) |
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161 { |
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162 TRACER("CGlxCache::UpdateMediaL"); |
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163 |
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164 if ( !aMedia.IsSupported(KMPXMediaGeneralId) ) |
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165 { |
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166 return; |
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167 } |
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168 // Copy/synchronize attributes |
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169 TGlxMediaId id ((TUint32)aMedia.ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId)); |
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170 GLX_DEBUG2("CGlxCache::UpdateMediaL() id=%d", id.Value()); |
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171 CGlxMedia* item = Media( id ); |
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172 |
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173 RArray<TMPXAttribute> newAttributes; |
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174 CleanupClosePushL(newAttributes); |
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175 |
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176 if (item != NULL) |
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177 { |
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178 GLX_DEBUG2("MGallery - CGlxCacheManager::HandleCollectionMediaL() existing item for item id %d", id.Value()); |
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179 CopyNewAndModifiedL(*item, aMedia, newAttributes); |
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180 } |
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181 else |
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182 { |
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183 GLX_DEBUG2("MGallery - CGlxCacheManager::HandleCollectionMediaL() new item for item id %d", id.Value()); |
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184 |
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185 // This is a new item. Create a media object and offer it to all lists. |
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186 // If the item is no longer needed by any list, then this is ok, since |
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187 // garbage collection will delete the item |
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188 // Add in id order. |
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189 item = CreateItemL(id); |
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190 |
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191 CopyNewAndModifiedL(*item, aMedia, newAttributes); |
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192 } |
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193 |
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194 // Broadcast the new attributes to all observers of the item and the cache |
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195 if (newAttributes.Count() > 0) |
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196 { |
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197 TInt count = item->UserCount(); |
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198 for (TInt i = 0; i < count; i++) |
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199 { |
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200 item->User( i ).HandleAttributesAvailableL( item->IndexInUser( i ), newAttributes ); |
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201 } |
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202 |
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203 // Broadcast to cache observers |
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204 // iCacheManager->BroadcastAttributesAvailableL(iIdSpaceId, id, newAttributes, item); |
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205 } |
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206 |
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207 CleanupStack::PopAndDestroy(&newAttributes); |
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208 } |
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209 // ----------------------------------------------------------------------------- |
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210 // Deletes the media item |
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211 // ----------------------------------------------------------------------------- |
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212 void CGlxCache::CleanupMedia(const TGlxMediaId& aMediaId) |
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213 { |
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214 TRACER("CGlxCache::CleanupMedia"); |
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215 GLX_DEBUG2("CGlxCache::CleanupMedia - aMediaId = %d", aMediaId.Value()); |
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216 if(iCacheManager) |
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217 { |
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218 iCacheManager->CleanupMedia(aMediaId); |
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219 } |
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220 } |
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221 |
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222 // ----------------------------------------------------------------------------- |
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223 // Handles modifications of item in cache |
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224 // ----------------------------------------------------------------------------- |
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225 void CGlxCache::HandleItemModified(const TGlxMediaId& aId, const RArray<TMPXAttribute>& aAttributes) |
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226 { |
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227 TRACER("CGlxCache::HandleItemModified"); |
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228 |
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229 TInt index = iItemPool.FindInOrder(aId, (&MediaItemOrderByKey)); |
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230 if (index != KErrNotFound) |
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231 { |
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232 iItemPool[index]->HandleModified(aAttributes); |
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233 } |
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234 } |
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235 |
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236 // ----------------------------------------------------------------------------- |
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237 // Copies new and modified attributes from the provided media object |
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238 // ----------------------------------------------------------------------------- |
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239 // |
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240 void CGlxCache::CopyNewAndModifiedL(CGlxMedia& aTarget, const CMPXMedia& aSource, |
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241 RArray<TMPXAttribute>& aNewAttributes) |
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242 { |
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243 TRACER("CGlxCache::CopyNewAndModifiedL"); |
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244 |
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245 /// @todo This is all temporary until global chunk based CMPXMedia is available |
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246 TInt count = aSource.Count(); |
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247 GLX_DEBUG2("CGlxCache::CopyNewAndModifiedL() Attribs count=%d", count); |
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248 aNewAttributes.ReserveL( count ); |
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249 |
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250 for (TInt i = 0; i < count; i++) |
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251 { |
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252 const TMPXAttribute& attrib = aSource.Attribute(i); |
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253 |
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254 if (attrib == KMPXMediaGeneralId) |
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255 { |
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256 // Ignore id |
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257 __ASSERT_DEBUG((TUint32)aSource.ValueTObjectL<TMPXItemId>(attrib) == aTarget.Id().Value(), |
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258 Panic(EGlxPanicIllegalArgument)); // aMedia relates to another media object than this |
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259 } |
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260 else |
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261 { |
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262 if (!aTarget.IsSupported(attrib)) |
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263 { |
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264 TMPXAttributeType type = aSource.Type(i); |
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265 |
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266 if (type == EMPXTypeText) |
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267 { |
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268 aTarget.SetTextValueL(attrib, aSource.ValueText(attrib)); |
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269 } |
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270 else if (type == EMPXTypeCObject) |
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271 { |
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272 if ( KGlxMediaIdThumbnail == attrib.ContentId() ) |
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273 { |
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274 // This is a thumbnail |
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275 CFbsBitmap* thumbnail = iCacheManager->TempThumbnail(); |
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276 |
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277 if ( thumbnail && iCacheManager->TempThumbnailId() == aTarget.Id() ) |
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278 { |
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279 // Add new thumbnail attribute |
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280 CGlxThumbnailAttribute* value = |
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281 aSource.ValueNoNewLCObjectL<CGlxThumbnailAttribute>(attrib); |
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282 CleanupStack::PushL(value); |
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283 value->iBitmap = thumbnail; |
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284 GLX_DEBUG3("CGlxCache::CopyNewAndModifiedL() TN Attrib w(%d) h(%d)", |
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285 thumbnail->SizeInPixels().iWidth, thumbnail->SizeInPixels().iHeight); |
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286 iCacheManager->SetTempThumbnailToNull(); |
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287 aTarget.SetCObjectValueL(attrib, value); |
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288 CleanupStack::Pop(value); |
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289 } |
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290 } |
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291 else |
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292 { |
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293 __DEBUG_ONLY(Panic(EGlxPanicNotImplemented)); // Add support for the attribute here |
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294 } |
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295 } |
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296 else if (type == EMPXTypeTObject) |
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297 { |
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298 if (attrib == KMPXMediaGeneralThumbnail1) |
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299 { |
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300 // Old thumbnail attribute - ignore |
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301 } |
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302 else if (attrib == KMPXMediaGeneralDate) |
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303 { |
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304 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt64>(attrib)); |
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305 } |
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306 else if (attrib == KGlxMediaGeneralLastModifiedDate) |
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307 { |
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308 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt64>(attrib)); |
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309 } |
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310 else if (attrib == KMPXMediaGeneralSize) |
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311 { |
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312 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib)); |
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313 } |
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314 else if (attrib == KMPXMediaColDetailSpaceId) |
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315 { |
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316 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TGlxIdSpaceId>(attrib)); |
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317 } |
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318 else if (attrib == KMPXMediaGeneralType) |
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319 { |
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320 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib)); |
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321 } |
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322 else if (attrib == KMPXMediaGeneralCategory) |
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323 { |
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324 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib)); |
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325 } |
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326 else if (attrib == KMPXMediaGeneralCount) |
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327 { |
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328 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib)); |
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329 } |
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330 else if (attrib == KGlxMediaGeneralDimensions) |
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331 { |
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332 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TSize>(attrib)); |
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333 } |
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334 else if (attrib == KGlxMediaGeneralLocation) |
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335 { |
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336 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TCoordinate>(attrib)); |
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337 } |
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338 else if (attrib == KMPXMediaGeneralDuration) |
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339 { |
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340 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib)); |
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341 } |
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342 else if (attrib == KMPXMediaDrmProtected) |
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343 { |
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344 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TBool>(attrib)); |
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345 } |
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346 else if (attrib == KGlxMediaGeneralDRMRightsValid) |
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347 { |
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348 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TBool>(attrib)); |
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349 } |
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350 else if (attrib == KGlxMediaGeneralSystemItem) |
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351 { |
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352 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TBool>(attrib)); |
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353 } |
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354 else if (attrib == KGlxMediaGeneralFramecount) |
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355 { |
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356 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib)); |
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357 } |
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358 else if(attrib == KGlxMediaGeneralSlideshowableContent) |
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359 { |
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360 aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib)); |
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361 } |
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362 else |
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363 { |
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364 __DEBUG_ONLY(Panic(EGlxPanicNotImplemented)); // Add support for the attribute here |
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365 } |
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366 } |
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367 else |
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368 { |
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369 __DEBUG_ONLY(Panic(EGlxPanicNotImplemented)); |
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370 } |
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371 |
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372 aNewAttributes.AppendL(attrib); |
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373 } |
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374 } |
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375 } |
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376 } |
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377 |
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378 // ----------------------------------------------------------------------------- |
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379 // Delete |
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380 // ----------------------------------------------------------------------------- |
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381 // |
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382 void CGlxCache::Delete( TInt aIndex ) |
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383 { |
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384 TRACER("CGlxCache::Delete"); |
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385 |
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386 GLX_ASSERT_DEBUG( 0 <= aIndex && aIndex < iItemPool.Count(), |
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387 Panic(EGlxPanicIllegalArgument), "deleting attribute out of bounds"); |
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388 |
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389 CGlxMedia* media = iItemPool[aIndex]; |
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390 |
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391 // Cleanup the media from all users, example texture manager |
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392 CleanupMedia(media->Id()); |
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393 |
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394 GLX_DEBUG2("MGallery - CGlxCache::Delete() for item id %d", media->Id().Value()); |
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395 // notify users that the media object is about to be deleted. This allows |
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396 // users to remove their references |
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397 // (loop does not t iterate indexes, since the contents of the User array |
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398 // will change during calls to RemoveReferences, as users are removed) |
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399 |
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400 // safety check that RemoveReference actually removed the reference |
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401 __DEBUG_ONLY( TInt _maxLoopCount = 1000 ); |
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402 |
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403 while ( media->UserCount() > 0 ) |
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404 { |
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405 // The user must remove a reference and that will decrement the |
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406 // UserCount() |
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407 media->User( 0 ).RemoveReference( media->IndexInUser( 0 ) ); |
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408 |
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409 // protect against a bug that would cause hard-to-find infinite loop |
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410 __DEBUG_ONLY( _maxLoopCount-- ); |
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411 GLX_ASSERT_DEBUG( _maxLoopCount != 0, Panic( EGlxPanicLogicError ), |
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412 "infinite loop when removing a media object" ); |
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413 } |
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414 |
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415 delete media; |
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416 iItemPool.Remove( aIndex ); |
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417 } |
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418 |
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419 // ----------------------------------------------------------------------------- |
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420 // Reserve space for a number of users, for all items in the cache |
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421 // ----------------------------------------------------------------------------- |
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422 // |
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423 void CGlxCache::ReserveUsersL(TInt aCount) |
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424 { |
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425 TRACER("CGlxCache::ReserveUsersL"); |
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426 |
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427 TInt count = iItemPool.Count(); |
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428 for ( TInt i = 0; i < count ; ++i ) |
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429 { |
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430 iItemPool[i]->ReserveUsersL( aCount ); |
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431 } |
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432 } |
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433 |
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434 // ----------------------------------------------------------------------------- |
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435 // MediaItemOrderById |
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436 // ----------------------------------------------------------------------------- |
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437 // |
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438 TInt CGlxCache::MediaItemOrderById(const CGlxMedia& aItem1, const CGlxMedia& aItem2) |
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439 { |
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440 TRACER("CGlxCache::MediaItemOrderById"); |
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441 |
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442 // Cannot do aItem1.Id() - aItem2.Id(), since Id().Value() returns an unsigned value |
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443 TGlxMediaId id1 = aItem1.Id(); |
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444 return MediaItemOrderByKey( &id1, aItem2 ); |
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445 } |
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446 |
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447 // ----------------------------------------------------------------------------- |
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448 // MediaItemOrderByKey |
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449 // ----------------------------------------------------------------------------- |
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450 // |
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451 TInt CGlxCache::MediaItemOrderByKey(const TGlxMediaId* aMediaId, const CGlxMedia& aItem2) |
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452 { |
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453 TRACER("CGlxCache::MediaItemOrderByKey"); |
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454 |
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455 TGlxMediaId id2 = aItem2.Id(); |
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456 if (*aMediaId < id2) |
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457 { |
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458 return -1; |
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459 } |
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460 |
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461 if (*aMediaId > id2) |
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462 { |
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463 return 1; |
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464 } |
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465 |
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466 return 0; |
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467 } |
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468 |
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469 // ----------------------------------------------------------------------------- |
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470 // Return count of media objects |
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471 // ----------------------------------------------------------------------------- |
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472 // |
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473 TInt CGlxCache::Count() |
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474 { |
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475 TRACER("CGlxCache::Count"); |
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476 |
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477 return iItemPool.Count(); |
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478 } |
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479 |
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480 // ----------------------------------------------------------------------------- |
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481 // Return media object by index |
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482 // ----------------------------------------------------------------------------- |
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483 // |
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484 CGlxMedia& CGlxCache::Media( TInt aIndex ) |
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485 { |
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486 TRACER("CGlxCache::Media"); |
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487 |
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488 return *iItemPool[aIndex]; |
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489 } |
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490 |
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491 // ----------------------------------------------------------------------------- |
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492 // Return media index |
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493 // ----------------------------------------------------------------------------- |
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494 // |
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495 TInt CGlxCache::FindMediaIndexInCache(TGlxMediaId aMediaId) |
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496 { |
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497 TRACER("CGlxCache::FindMediaIndexInCache"); |
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498 |
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499 return iItemPool.FindInOrder(aMediaId, (&MediaItemOrderByKey)); |
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500 } |
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501 |