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1 // Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #ifndef __FBSERV_H__ |
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17 #define __FBSERV_H__ |
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18 |
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19 #include <e32base.h> |
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20 #include <f32file.h> |
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21 #include <fbs.h> |
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22 #include "UTILS.H" |
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23 #include "FBSMBMC.H" |
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24 #include "fbsmessage.h" |
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25 |
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26 class CFbTop; |
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27 class CFbsBackgroundCompression; |
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28 class CFbsBackgroundCompressionQueueElement; |
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29 class TOpenFontGlyphData; |
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30 |
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31 NONSHARABLE_CLASS(CFontObject): public CObject |
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32 /** |
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33 @internalComponent |
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34 */ |
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35 { |
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36 public: |
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37 CFontObject(CFontStore* aFontStore); |
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38 ~CFontObject(); |
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39 public: |
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40 CBitmapFont* iAddressPointer; |
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41 CFontStore* iFontStore; |
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42 TInt iHeightInTwips; |
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43 }; |
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44 |
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45 NONSHARABLE_CLASS(CBitmapObject): public CObject |
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46 /** |
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47 Provides reference counting facilities for bitmaps managed by CFbTop. |
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48 @internalComponent |
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49 */ |
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50 { |
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51 friend class CFbsBackgroundCompression; |
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52 friend class CFbsBackgroundCompressionQueueElement; |
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53 protected: |
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54 CBitmapObject(CFbTop& aFbTop, CBitwiseBitmap* aBmp); |
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55 void ConstructL(TBool aReplacement); |
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56 public: |
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57 static CBitmapObject* NewL(CFbTop& aFbTop, CBitwiseBitmap* aBmp, TBool aReplacement); |
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58 ~CBitmapObject(); |
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59 inline CBitwiseBitmap* Address() const; |
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60 inline TInt Handle() const; |
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61 inline CBitmapObject* CleanBitmap() const; |
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62 inline TBool IsInCompressionQueue() const; |
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63 void SetCleanBitmap(CBitmapObject* aNewBmpObj); |
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64 virtual void Close(); |
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65 static TInt Compare(const CBitmapObject& aBmpObj1, const CBitmapObject& aBmpObj2); |
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66 static TInt Compare(const TInt* aHandle, const CBitmapObject& aBmpObj); |
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67 protected: |
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68 CFbTop* iFbTop; |
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69 private: |
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70 CBitwiseBitmap* iAddressPointer; |
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71 TInt iHandle; |
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72 CBitmapObject* iCleanBitmap; |
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73 CFbsBackgroundCompressionQueueElement* iCompressionQueueElement; |
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74 }; |
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75 |
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76 NONSHARABLE_CLASS(CSharedBitmapObject): public CBitmapObject |
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77 /** |
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78 Provides reference counting facilities for shared bitmaps managed by CFbTop. |
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79 Shared bitmaps are only loaded once. They are uniquely identified by the |
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80 combination of the filename, bitmap ID and last modified time of the file. |
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81 @internalComponent |
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82 */ |
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83 { |
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84 friend class CHashMap; |
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85 private: |
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86 CSharedBitmapObject(CFbTop& aFbTop, CBitwiseBitmap* aBmp, TDesC* aKey); |
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87 void ConstructL(TUint aHash); |
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88 public: |
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89 static CSharedBitmapObject* NewL(CFbTop& aFbTop, CBitwiseBitmap* aBmp, TDesC* aKey, TUint aHash); |
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90 ~CSharedBitmapObject(); |
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91 static HBufC* KeyLC(const TDesC& aFileName, TInt aId, const TTime& aModTime); |
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92 private: |
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93 TDesC* iKey; |
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94 mutable CSharedBitmapObject* iNext; // Next object in a linked list |
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95 }; |
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96 |
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97 NONSHARABLE_CLASS(CFontBitmapServer): public CPolicyServer |
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98 /** |
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99 @internalComponent |
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100 */ |
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101 { |
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102 public: |
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103 CFontBitmapServer(); |
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104 ~CFontBitmapServer(); |
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105 static CFontBitmapServer* NewL(); |
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106 CSession2* NewSessionL(const TVersion& aVersion, const RMessage2& aMessage) const; |
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107 TInt Init(); |
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108 #ifdef _DEBUG |
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109 void ProcMessage(const RMessage2& aMessage, TInt aSession, TInt& aRet); |
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110 #else |
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111 void ProcMessage(const RMessage2& aMessage, TInt aSession); |
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112 #endif |
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113 CFbTop* TopLevelStore(); |
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114 |
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115 private: |
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116 void GetHeapSizesL(const RMessage2& aMessage); |
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117 TInt HandleMesgTypefaceSupport(const RMessage2& aMessage, TBool& aClientPanicRequired); |
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118 TInt HandleMesgFontHeight(const RMessage2& aMessage, TBool aInTwips); |
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119 |
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120 protected: |
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121 TUint iConnectionId; |
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122 CFbTop* iTopLevelStore; |
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123 }; |
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124 |
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125 class TFontFileIndex |
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126 /** |
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127 @internalComponent |
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128 */ |
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129 { |
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130 public: |
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131 TUid iUid; |
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132 TInt iAccessCount; |
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133 }; |
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134 |
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135 |
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136 class CFbClient; |
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137 |
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138 NONSHARABLE_CLASS(TFbClientHelper): public TDblQueLink |
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139 /** |
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140 @internalComponent |
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141 */ |
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142 { |
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143 public: |
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144 inline TFbClientHelper(CFbClient& aClient); |
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145 |
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146 public: |
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147 CFbClient& iClient; |
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148 RMessagePtr2 iMessage; |
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149 TBool iDirty; |
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150 }; |
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151 |
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152 NONSHARABLE_CLASS(CFbClient): public CSession2 |
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153 /** |
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154 @internalComponent |
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155 */ |
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156 { |
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157 public: |
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158 static CFbClient* NewL(RHeap* aHeap); |
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159 ~CFbClient(); |
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160 void Init(TUint aConnectionHandle); |
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161 void CreateL(); |
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162 CFontBitmapServer* FontBitmapServer(); |
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163 CFbTop* TopLevelStore(); |
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164 void CopyFontInfo(CFontObject* aFontObjPtr,TInt aHandle,TFontInfo& aFontInfo); |
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165 void ServiceL(const RMessage2& aMessage); |
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166 void ProcFontMessage(const RMessage2& aMessage); |
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167 void ProcBitmapMessage(const RMessage2& aMessage); |
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168 void NotifyDirtyBitmap(CBitmapObject& aBmpObj); |
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169 void AddFontFileIndexL(TUid aId); |
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170 void RemoveFontFileIndex(TUid aId); |
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171 void Disconnect(const RMessage2 &aMessage); |
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172 #ifdef _DEBUG |
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173 void ProcMemMessage (const RMessage2& aMessage); |
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174 #endif |
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175 private: |
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176 CFbClient(RHeap* aHeap); |
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177 TInt HandleMesgFontDuplicate(const RMessage2& aMessage, TBool& aPanicRequired); |
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178 TInt HandleMesgGetNearestFont(const RMessage2& aMessage, TBool& aPanicRequired); |
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179 TInt HandleMesgGetFontById(const RMessage2& aMessage, TBool& aPanicRequired); |
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180 TInt CopyFontInfoIntoReturnMessage(const RMessage2& aMessage, TBool& aPanicRequired, CFontObject* aFontObj, TInt iWritePosition); |
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181 TInt HandleMesgAddOrInstallFontFile(const RMessage2& aMessage, TBool& aPanicRequired); |
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182 TInt HandleMesgRemoveFontFile(const RMessage2& aMessage); |
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183 TInt HandleMesgRasterize(const RMessage2& aMessage, TBool& aPanicRequired); |
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184 TInt HandleMesgFaceAttrib(const RMessage2& aMessage, TBool& aPanicRequired); |
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185 TInt HandleMesgHasCharacter(const RMessage2& aMessage, TBool& aPanicRequired); |
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186 TInt HandleMesgShapeText(const RMessage2& aMessage, TBool& aPanicRequired); |
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187 TInt HandleMesgShapeDelete(const RMessage2& aMessage, TBool& aPanicRequired); |
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188 |
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189 protected: |
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190 TUint iConnectionHandle; |
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191 CObjectIx* iIx; |
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192 TInt iResourceCount; |
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193 CArrayFixFlat<TFontFileIndex>* iFontFileIndex; |
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194 RHeap* iHeap; // the heap containing iOpenFontGlyphData |
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195 TOpenFontGlyphData* iOpenFontGlyphData; // the metrics and bitmap, in shared memory, of the last character rasterized |
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196 TInt iSessionHandle; // used to identify client-specific glyph caches for the new font system |
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197 TFbClientHelper* iHelper; // used to notify client of any bitmap becoming dirty |
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198 |
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199 private: |
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200 RBuf16 iTextToShape; // buffer used to hold incoming text that needs shaping |
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201 #ifdef _DEBUG |
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202 TBool iOwnHeapCheck; //for the process heap - current state |
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203 TBool iHeapCheck; //for iHeap - current state |
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204 TBool iOwnHeapCheckFlip; //for the process heap - to switch the current state |
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205 TBool iHeapCheckFlip; //for iHeap - used to switch the current state |
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206 TInt iOwnHeapFailNumber; //the number for the memory fail to be set to. -1: don't set. |
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207 TInt iSharedHeapFailNumber; //the number for the memory fail to be set to. -1 don't set |
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208 TInt iRet; |
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209 TInt iFontDuplicateToFail; //when this is set calls to HandleMesgFontDuplicate() fail for the class. |
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210 #endif |
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211 }; |
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212 |
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213 NONSHARABLE_CLASS(CFbActiveScheduler): public CActiveScheduler |
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214 /** |
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215 @internalComponent |
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216 */ |
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217 { |
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218 public: |
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219 CFbActiveScheduler(); |
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220 virtual void Error(TInt anError) const; |
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221 }; |
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222 |
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223 class CFontStore; |
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224 |
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225 NONSHARABLE_CLASS(CHashMap): public CBase |
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226 /** |
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227 A HashMap data structure for storing pointers to CSharedBitmapObjects. |
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228 Provides fast insert/lookup/removal based on a key. |
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229 @internalComponent |
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230 */ |
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231 { |
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232 public: |
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233 CHashMap(); |
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234 ~CHashMap(); |
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235 |
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236 void Insert(CSharedBitmapObject& aBmpObj, TUint aHash); |
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237 CSharedBitmapObject* Lookup(const TDesC& aKey, TUint aHash) const; |
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238 TInt Remove(const CSharedBitmapObject& aBmpObj); |
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239 static TUint Hash(const TDesC16& aKey); |
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240 |
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241 private: |
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242 CSharedBitmapObject* iHashTable[1<<KFBSERVSharedBitmapHashTableSizeInBits]; // Array of pointers to singularly linked lists. Linked list elements are CSharedBitmapObjects. |
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243 TInt iTableSize; |
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244 TInt iMask; |
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245 }; |
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246 |
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247 |
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248 IMPORT_C extern const TInt KFbServSharedHeapMaxSize; |
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249 |
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250 |
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251 NONSHARABLE_CLASS(CFbTop): public CBase |
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252 /** |
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253 @internalComponent |
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254 */ |
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255 { |
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256 friend class CFontBitmapServer; |
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257 friend class CBitmapObject; |
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258 friend class CSharedBitmapObject; |
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259 public: |
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260 ~CFbTop(); |
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261 static CFbTop* NewL(); |
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262 TInt GetNearestFont(CFontObject*& aFontObjPtr, TFbsMessage aMessage, const TFontSpec& aFontSpec, TInt aMaxHeight = 0); |
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263 TInt GetFontById(CFontObject*& aFontObjPtr,TUid aUid,const TAlgStyle& aAlgStyle); |
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264 CBitmapObject* CreateBitmapL(const TSize& aSize, TDisplayMode aDispMode, TUid aUid, TBool aReplacement, TInt aDataSize = 0); |
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265 CBitmapObject* LoadBitmapL(const TDesC& aFilename, TInt32 aId, TUint aFileOffset,RFile* aFile, TInt aSessionHandle); |
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266 CSharedBitmapObject* ShareBitmapL(TDes& aFilename, TInt32 aId, TUint aFileOffset,RFile* aFile, TInt aSessionHandle); |
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267 TInt GetCleanBitmap(CBitmapObject*& aBmpObjPtr); |
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268 CBitmapObject* FindBitmap(TInt aHandle); |
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269 TBool ValidFontHandle(TInt aHandle); |
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270 TBool ValidBitmapFont(TInt aHandle); |
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271 CFontStore* FontStore() const; |
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272 RHeap* Heap() const; |
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273 CChunkPile* Pile() const; |
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274 TInt HeapBase() const; |
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275 void SetFontNameAliasL(const RMessage2& aMessage); |
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276 void SetDefaultLanguageForMetrics(const RMessage2& aMessage); |
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277 inline CFbsBackgroundCompression* BackgroundCompression() const; |
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278 void CloseFileStores(TInt aSessionHandle); |
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279 void SetSystemDefaultTypefaceName(const TDesC& aFontTypefaceName); |
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280 TInt GetAllBitmapHandles(const RMessage2& aMessage) const; |
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281 inline RFs& FileSession(); |
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282 void AddClientHelper(TFbClientHelper& aHelper); |
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283 void NotifyDirtyBitmap(CBitmapObject& aBmpObj, CFbClient* aClient); |
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284 TInt BitmapConUniqueID() const; |
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285 TInt FontConUniqueID() const; |
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286 private: |
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287 CFbTop(); |
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288 void ConstructL(); |
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289 CBitwiseBitmap* DoLoadBitmapLC(const TDesC& aFilename, TInt32 aId, TUint aFileOffset, RFile* aFile, TInt aSessionHandle); |
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290 void LoadOpenFontLibraries(); |
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291 void SafeInstallOfRasterizerL(TUid aInterfaceImplUid); |
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292 TInt FindFontNameAlias(const TDesC& aAlias); |
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293 void LoadShaperFactories(); |
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294 void SafeInstallOfShaperFactoryL(TUid aInterfaceImplUid); |
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295 TInt CreateFontObjectFromFont(CFontObject*& aFontObjPtr, CFont* aFont); |
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296 TInt GetNearestNonAliasedFont(CFont*& aFont, TFbsMessage aMessage, const TFontSpec& aFontSpec, TInt aMaxHeight); |
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297 private: |
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298 RFs iFilesys; |
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299 CFontStore* iFontStore; |
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300 CObjectCon* iBitmapCon; |
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301 CObjectCon* iFontCon; |
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302 CObjectConIx* iConIx; |
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303 RHeap* iHeap; |
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304 RChunk iChunk; |
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305 RChunk iLargeBitmapChunk; |
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306 RMutex iDebugMutex; // used only in builds with SYMBIAN_DEBUG_FBS_LOCKHEAP defined |
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307 CChunkPile* iPile; |
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308 RPointerArray<HBufC> iFontNameAlias; |
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309 RPointerArray<CBitmapObject> iBitmapObjectIndex; |
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310 CHashMap iSharedBitmapObjectHashMap; |
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311 CFbTopStreamIdCache* iMBMCache; |
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312 TLanguage iDefaultLanguageForMetrics; |
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313 CFbsBackgroundCompression* iBackgroundCompression; |
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314 TBuf<KMaxTypefaceNameLength> iSystemDefaultFontTypefaceName; |
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315 TDblQue<TFbClientHelper> iClientHelpers; |
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316 TInt64 iNextAvailableSerialNumber; |
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317 }; |
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318 |
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319 inline CBitwiseBitmap* CBitmapObject::Address() const |
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320 { |
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321 return iAddressPointer; |
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322 } |
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323 |
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324 inline TInt CBitmapObject::Handle() const |
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325 { |
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326 return iHandle; |
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327 } |
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328 |
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329 inline CBitmapObject* CBitmapObject::CleanBitmap() const |
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330 { |
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331 return iCleanBitmap; |
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332 } |
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333 |
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334 inline TBool CBitmapObject::IsInCompressionQueue() const |
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335 { |
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336 return iCompressionQueueElement != NULL; |
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337 } |
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338 |
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339 inline TFbClientHelper::TFbClientHelper(CFbClient& aClient) |
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340 : iClient(aClient), iDirty(EFalse) |
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341 {} |
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342 |
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343 inline CFbsBackgroundCompression* CFbTop::BackgroundCompression() const |
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344 { |
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345 __ASSERT_DEBUG(iBackgroundCompression != NULL, User::Invariant()); |
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346 return iBackgroundCompression; |
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347 } |
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348 |
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349 /** |
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350 It returns the file session handle. |
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351 |
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352 @internalComponent |
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353 */ |
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354 inline RFs& CFbTop::FileSession() |
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355 { |
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356 return iFilesys; |
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357 } |
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358 |
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359 #endif |
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360 |