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1 // Copyright (c) 2007-2009 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 #include "glyphimagecache.h" |
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17 #include "glyphlutab.h" |
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18 #include "vgengine.h" |
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19 #include <fbs.h> |
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20 |
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21 //the image of the following size will be pre-allocated for low memory conditions. |
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22 const TSize KMaxSizeImageOOM(72, 64); |
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23 #ifdef DRAWGLYPH_MULTIPLY_MODE |
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24 // Matrix used for converting glyphs with a background colour of black and a character colour |
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25 // of white to have a background colour that is fully transparent black and a character colour |
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26 // of opaque black. |
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27 const VGfloat KColorMatrix[20] = { 0, 0, 0, 1, // sets alpha of destination to R value of source |
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28 0, 0, 0, 0, |
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29 0, 0, 0, 0, |
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30 0, 0, 0, 0, |
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31 1, 1, 1, 0}; // sets RGB of destination to 1 |
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32 #endif // DRAWGLYPH_MULTIPLY_MODE |
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33 |
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34 //--------------class CFontGlyphTree -------------------- |
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35 /** |
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36 Creates a new instance of the class. Will not be shared across different threads |
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37 |
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38 @param aFontId The unique font identifier. |
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39 @param aGlyphType The type for the format of a glyph bitmap. |
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40 @return The pointer to the CFontGlyphTree class instance. |
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41 */ |
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42 CFontGlyphTree* CFontGlyphTree::NewL(TUint32 aFontId, TGlyphBitmapType aGlyphType) |
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43 { |
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44 CFontGlyphTree* self = new (ELeave) CFontGlyphTree(aFontId, aGlyphType); |
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45 CleanupStack::PushL(self); |
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46 self->ConstructL(); |
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47 CleanupStack::Pop(self); |
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48 return self; |
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49 } |
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50 |
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51 /** |
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52 Constructor for the image font glyph tree |
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53 |
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54 @param aFontId The unique font identifier. |
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55 @param aGlyphType The type for the format of a glyph bitmap. |
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56 */ |
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57 CFontGlyphTree::CFontGlyphTree(TUint32 aFontId, TGlyphBitmapType aGlyphType) : |
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58 iKey(_FOFF(TGlyphEntry,iGlyphCode),ECmpTUint32), |
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59 iFontId(aFontId), |
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60 iGlyphType(aGlyphType) |
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61 { |
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62 } |
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63 |
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64 /** |
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65 Destructor for the image font glyph tree. |
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66 |
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67 Destroys the VGImages, page pool and binary tree. |
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68 */ |
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69 CFontGlyphTree::~CFontGlyphTree() |
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70 { |
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71 TRAP_IGNORE(DestroyAllVGImagesL()); |
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72 delete iGlyphTree; |
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73 delete iPagePool; |
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74 } |
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75 |
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76 /** |
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77 Constructs memory page pool and binary tree. Glyph code will be used as a key. |
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78 */ |
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79 void CFontGlyphTree::ConstructL() |
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80 { |
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81 iPagePool = CMemPagePool::NewL(); |
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82 |
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83 switch(iGlyphType) |
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84 { |
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85 case EFourColourBlendGlyphBitmap: |
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86 iGlyphTree = new (ELeave) TBtreeFix<TGlyphEntryCompound, TChar> (EBtreeFast); |
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87 ((TBtreeFix<TGlyphEntryCompound, TChar> *)iGlyphTree) -> Connect(iPagePool, &iKey); |
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88 break; |
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89 case EMonochromeGlyphBitmap: |
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90 case EAntiAliasedGlyphBitmap: |
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91 iGlyphTree = new (ELeave) TBtreeFix<TGlyphEntry, TChar> (EBtreeFast); |
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92 ((TBtreeFix<TGlyphEntry, TChar> *)iGlyphTree) -> Connect(iPagePool, &iKey); |
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93 break; |
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94 default: |
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95 User::Leave(KErrNotSupported); |
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96 break; |
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97 } |
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98 } |
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99 |
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100 /** |
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101 Searches for the image entry in the binary tree. If fails, it will create a new entry. |
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102 |
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103 @param aGlyphCode General Unicode character value. |
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104 @param aGlyphImage Glyph image bitmap data. The data structure depends on glyph type. |
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105 @param aGlyphImageSize Size of the glyph image. |
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106 @param aEntry Binary tree entry, which comprises OpenVG image(s). |
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107 @param aDataForeground Pre-allocated buffer, which will be used for setting text VG image. |
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108 |
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109 @see TGlyphEntryCompound |
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110 @see TGlyphEntry |
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111 |
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112 @pre Rendering engine has been constructed. |
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113 @post Requested OpenVG images are ready for rendering. |
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114 @return KErrNone if successful; |
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115 KErrNotSupported if font type is not supported, |
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116 otherwise one of the other system-wide error codes. |
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117 */ |
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118 template <class K> |
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119 void CFontGlyphTree::GlyphImageEntryL(TChar aGlyphCode, const TUint8* aGlyphImage, const TSize& aGlyphImageSize, K& aEntry, TUint8* aDataForeground) |
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120 { |
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121 TBtreePos pos; |
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122 TBool found = EFalse; |
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123 found = ((TBtreeFix<K, TChar> *)iGlyphTree) -> FindL(pos, aGlyphCode); |
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124 |
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125 if(found) |
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126 { |
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127 ((TBtreeFix<K, TChar> *)iGlyphTree) -> ExtractAtL(pos, aEntry); |
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128 } |
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129 else |
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130 { |
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131 aEntry.iGlyphCode = aGlyphCode; |
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132 aEntry.iForeground = VG_INVALID_HANDLE; |
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133 TInt glyphSizeInByte = 0; |
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134 |
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135 switch(iGlyphType) |
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136 { |
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137 case EFourColourBlendGlyphBitmap: |
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138 { |
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139 ((TGlyphEntryCompound&) aEntry).iOutline = VG_INVALID_HANDLE; |
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140 ((TGlyphEntryCompound&) aEntry).iShadow = VG_INVALID_HANDLE; |
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141 CreateVGImageL(aGlyphImage, aGlyphImageSize, aEntry.iForeground, ((TGlyphEntryCompound&) aEntry).iOutline, ((TGlyphEntryCompound&) aEntry).iShadow, NULL, NULL, NULL); |
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142 glyphSizeInByte = aGlyphImageSize.iWidth * aGlyphImageSize.iHeight; |
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143 glyphSizeInByte *= 3; //foreground, shadow, outline |
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144 break; |
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145 } |
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146 case EMonochromeGlyphBitmap: |
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147 CreateVGImageL(aGlyphImage, aGlyphImageSize, EGray2, aEntry.iForeground, aDataForeground); |
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148 glyphSizeInByte = (((aGlyphImageSize.iWidth + 31) / 32) << 2) * aGlyphImageSize.iHeight; |
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149 break; |
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150 case EAntiAliasedGlyphBitmap: |
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151 CreateVGImageL(aGlyphImage, aGlyphImageSize, EGray256, aEntry.iForeground, NULL); |
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152 glyphSizeInByte = aGlyphImageSize.iWidth * aGlyphImageSize.iHeight; |
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153 break; |
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154 default: |
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155 User::Leave(KErrNotSupported); |
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156 } |
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157 |
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158 ((TBtreeFix<K, TChar> *)iGlyphTree) -> InsertL(pos, aEntry); |
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159 iCacheSize += glyphSizeInByte; |
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160 } |
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161 } |
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162 |
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163 /** |
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164 Overridden function, which creates Open VG images for foreground, background, shadow and outline components of the font. |
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165 |
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166 @param aGlyphImage Source bitmap data in 256 grey format. Each pixel value is an index to a constant lookup table. |
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167 Four entries of this table represent % of Outline, Shadow, Fill and Background colour to be used to get the final colour to be displayed on screen. |
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168 @param aGlyphImageSize Size of the glyph bitmap image. |
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169 @param aForeground Foreground component of the glyph. |
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170 @param aOutline Outline component of the glyph. |
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171 @param aShadow Shadow component of the glyph. |
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172 @param aPreAllocForeground Pre-allocated buffer which will be used for setting text foreground VG image |
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173 @param aPreAllocOutline Pre-allocated buffer which will be used for setting text outline VG image |
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174 @param aPreAllocShadow Pre-allocated buffer which will be used for setting text shadow VG image |
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175 |
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176 @post Requested OpenVG images are ready for rendering. |
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177 */ |
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178 void CFontGlyphTree::CreateVGImageL(const TUint8* aGlyphImage, const TSize& aGlyphImageSize, VGImage& aForeground, VGImage& aOutline, VGImage& aShadow, TUint8* aPreAllocForeground, TUint8* aPreAllocOutline, TUint8* aPreAllocShadow) |
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179 { |
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180 TInt dataStride = aGlyphImageSize.iWidth; |
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181 TInt targetByteCount = dataStride * aGlyphImageSize.iHeight; |
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182 // Allocate memory and transform source into target format. |
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183 // |
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184 TAny* foregroundBuffer = NULL; |
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185 TAny* outlineBuffer = NULL; |
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186 TAny* shadowBuffer = NULL; |
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187 TBool destroyTempBuffer = EFalse; |
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188 |
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189 if(aPreAllocForeground && aPreAllocOutline && aPreAllocShadow && |
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190 (aGlyphImageSize.iWidth <= KMaxSizeImageOOM.iWidth) && |
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191 (aGlyphImageSize.iHeight <= KMaxSizeImageOOM.iHeight)) |
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192 { |
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193 foregroundBuffer = aPreAllocForeground; |
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194 outlineBuffer = aPreAllocOutline; |
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195 shadowBuffer = aPreAllocShadow; |
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196 } |
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197 else |
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198 { |
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199 foregroundBuffer = User::AllocL(targetByteCount); |
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200 CleanupStack::PushL(foregroundBuffer); |
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201 outlineBuffer = User::AllocL(targetByteCount); |
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202 CleanupStack::PushL(outlineBuffer); |
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203 shadowBuffer = User::AllocL(targetByteCount); |
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204 CleanupStack::PushL(shadowBuffer); |
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205 destroyTempBuffer = ETrue; |
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206 } |
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207 |
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208 TUint8* foregroundByte = static_cast <TUint8*> (foregroundBuffer); |
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209 TUint8* outlineByte = static_cast <TUint8*> (outlineBuffer); |
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210 TUint8* shadowByte = static_cast <TUint8*> (shadowBuffer); |
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211 |
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212 const TUint8* endByte = (TUint8*)aGlyphImage + targetByteCount; |
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213 TUint8* curSrcGlyphImage = const_cast <TUint8*> (aGlyphImage); |
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214 |
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215 while (curSrcGlyphImage < endByte) |
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216 { |
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217 *outlineByte++ = FourColorBlendLookup[*curSrcGlyphImage] [KOutlineColorIndex]; |
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218 *shadowByte++ = FourColorBlendLookup[*curSrcGlyphImage] [KShadowColorIndex]; |
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219 *foregroundByte++ = FourColorBlendLookup[*curSrcGlyphImage] [KFillColorIndex]; |
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220 curSrcGlyphImage++; |
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221 } |
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222 |
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223 const VGImageFormat imageFormat = VG_sL_8; |
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224 if(aForeground == VG_INVALID_HANDLE) |
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225 { |
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226 aForeground = vgCreateImage(imageFormat, |
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227 aGlyphImageSize.iWidth, |
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228 aGlyphImageSize.iHeight, |
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229 VG_IMAGE_QUALITY_NONANTIALIASED); |
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230 if(aForeground == VG_INVALID_HANDLE) |
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231 { |
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232 User::Leave(KErrNoMemory); |
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233 } |
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234 aOutline = vgCreateImage(imageFormat, |
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235 aGlyphImageSize.iWidth, |
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236 aGlyphImageSize.iHeight, |
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237 VG_IMAGE_QUALITY_NONANTIALIASED); |
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238 if(aOutline == VG_INVALID_HANDLE) |
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239 { |
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240 DestroyVGImage(&aForeground); |
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241 User::Leave(KErrNoMemory); |
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242 } |
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243 |
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244 aShadow = vgCreateImage(imageFormat, |
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245 aGlyphImageSize.iWidth, |
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246 aGlyphImageSize.iHeight, |
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247 VG_IMAGE_QUALITY_NONANTIALIASED); |
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248 if(aShadow == VG_INVALID_HANDLE) |
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249 { |
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250 DestroyVGImage(&aForeground, &aOutline); |
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251 User::Leave(KErrNoMemory); |
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252 } |
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253 } |
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254 |
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255 vgImageSubData( |
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256 aForeground, foregroundBuffer, |
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257 dataStride, imageFormat, |
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258 0, 0,aGlyphImageSize.iWidth, aGlyphImageSize.iHeight); |
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259 |
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260 #ifdef DRAWGLYPH_MULTIPLY_MODE |
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261 VGImage image = vgCreateImage(VG_sARGB_8888_PRE, aGlyphImageSize.iWidth, aGlyphImageSize.iHeight, VG_IMAGE_QUALITY_NONANTIALIASED); |
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262 vgColorMatrix(image, aForeground, KColorMatrix); |
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263 vgDestroyImage(aForeground); |
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264 aForeground = image; |
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265 #endif // DRAWGLYPH_MULTIPLY_MODE |
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266 |
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267 vgImageSubData( |
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268 aOutline, outlineBuffer, |
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269 dataStride, imageFormat, |
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270 0, 0, aGlyphImageSize.iWidth, aGlyphImageSize.iHeight); |
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271 |
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272 #ifdef DRAWGLYPH_MULTIPLY_MODE |
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273 image = vgCreateImage(VG_sARGB_8888_PRE, aGlyphImageSize.iWidth, aGlyphImageSize.iHeight, VG_IMAGE_QUALITY_NONANTIALIASED); |
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274 vgColorMatrix(image, aOutline, KColorMatrix); |
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275 vgDestroyImage(aOutline); |
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276 aOutline = image; |
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277 #endif // DRAWGLYPH_MULTIPLY_MODE |
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278 |
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279 vgImageSubData( |
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280 aShadow, shadowBuffer, |
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281 dataStride, imageFormat, |
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282 0, 0, aGlyphImageSize.iWidth, aGlyphImageSize.iHeight); |
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283 |
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284 #ifdef DRAWGLYPH_MULTIPLY_MODE |
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285 image = vgCreateImage(VG_sARGB_8888_PRE, aGlyphImageSize.iWidth, aGlyphImageSize.iHeight, VG_IMAGE_QUALITY_NONANTIALIASED); |
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286 vgColorMatrix(image, aShadow, KColorMatrix); |
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287 vgDestroyImage(aShadow); |
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288 aShadow = image; |
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289 #endif // DRAWGLYPH_MULTIPLY_MODE |
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290 |
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291 if(destroyTempBuffer) |
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292 { |
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293 CleanupStack::PopAndDestroy(3, foregroundBuffer); |
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294 } |
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295 } |
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296 |
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297 /** |
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298 Overridden function, which creates OpenVG images for monochrome and anti-aliased fonts. |
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299 |
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300 @param aGlyphImage Data source bitmap in 256 or 2 Grey format. |
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301 @param aGlyphImageSize Glyph image data size. |
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302 @param aDisplayMode Image display mode. |
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303 @param aForeground Foreground component of the glyph. |
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304 @param aPreAllocForeground Pre-allocated buffer which will be used for setting foreground VG image |
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305 |
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306 @post Requested OpenVG image is ready for rendering. |
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307 |
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308 @panic Panic if bitmap display mode is not 256 grey or 2 grey. |
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309 */ |
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310 void CFontGlyphTree::CreateVGImageL(const TUint8* aGlyphImage, const TSize& aGlyphImageSize, TDisplayMode aDisplayMode, VGImage& aForeground, TUint8* aPreAllocForeground) |
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311 { |
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312 GRAPHICS_ASSERT_DEBUG((aDisplayMode == EGray256) || (aDisplayMode == EGray2), EDirectGdiPanicInvalidDisplayMode); |
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313 GRAPHICS_ASSERT_DEBUG(aGlyphImage, EDirectGdiPanicInvalidParameter); |
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314 |
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315 VGImageFormat imageFormat = VG_IMAGE_FORMAT_INVALID; |
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316 TInt vgCompatibleSourceStride = 0x00; |
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317 TUint32 binaryDataArray[32]; |
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318 TUint8* binaryData = NULL; |
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319 TUint8* tempBuffer = NULL; |
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320 |
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321 if(aDisplayMode == EGray256) |
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322 { |
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323 imageFormat = VG_sL_8; |
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324 vgCompatibleSourceStride = aGlyphImageSize.iWidth; |
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325 binaryData = const_cast <TUint8*> (aGlyphImage); |
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326 } |
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327 else //EGray2 |
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328 { |
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329 imageFormat = VG_BW_1; |
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330 vgCompatibleSourceStride = ((aGlyphImageSize.iWidth + 31) / 32) << 2; |
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331 if (aGlyphImageSize.iWidth > 30 || aGlyphImageSize.iHeight > 32) |
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332 { |
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333 binaryData = aPreAllocForeground; |
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334 if(!binaryData) |
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335 { |
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336 tempBuffer = (TUint8*) User::AllocL(vgCompatibleSourceStride * aGlyphImageSize.iHeight); |
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337 CleanupStack::PushL(tempBuffer); |
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338 binaryData = tempBuffer; |
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339 } |
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340 DecodeBinaryDataExLarge(aGlyphImageSize, aGlyphImage, vgCompatibleSourceStride, reinterpret_cast <TUint32*> (binaryData)); |
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341 } |
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342 else |
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343 { |
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344 DecodeBinaryData(aGlyphImageSize, aGlyphImage, binaryDataArray); |
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345 binaryData = reinterpret_cast <TUint8*> (binaryDataArray); |
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346 } |
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347 } |
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348 |
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349 if(aForeground == VG_INVALID_HANDLE) |
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350 { |
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351 aForeground = vgCreateImage(imageFormat, |
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352 aGlyphImageSize.iWidth, |
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353 aGlyphImageSize.iHeight, |
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354 VG_IMAGE_QUALITY_NONANTIALIASED); |
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355 } |
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356 |
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357 if (aForeground != VG_INVALID_HANDLE) |
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358 { |
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359 // Copy from the source image to our new VGImage |
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360 vgImageSubData(aForeground, binaryData, vgCompatibleSourceStride, imageFormat, |
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361 0, 0, aGlyphImageSize.iWidth, aGlyphImageSize.iHeight); |
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362 |
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363 #ifdef DRAWGLYPH_MULTIPLY_MODE |
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364 VGImage image = vgCreateImage(VG_sARGB_8888_PRE, aGlyphImageSize.iWidth, aGlyphImageSize.iHeight, VG_IMAGE_QUALITY_NONANTIALIASED); |
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365 vgColorMatrix(image, aForeground, KColorMatrix); |
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366 vgDestroyImage(aForeground); |
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367 aForeground = image; |
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368 #endif |
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369 } |
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370 else |
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371 { |
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372 if(tempBuffer) |
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373 { |
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374 CleanupStack::PopAndDestroy(tempBuffer); |
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375 } |
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376 User::Leave(KErrNoMemory); |
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377 } |
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378 |
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379 if(tempBuffer) |
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380 { |
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381 CleanupStack::PopAndDestroy(tempBuffer); |
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382 } |
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383 } |
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384 |
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385 /** |
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386 Decodes binary data for monochrome bitmap. |
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387 |
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388 @param aDataSize Image size. |
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389 @param aData Pointer to a source buffer. |
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390 @param aBinaryData Pointer to a destination buffer. |
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391 */ |
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392 void CFontGlyphTree::DecodeBinaryData(const TSize& aDataSize, |
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393 const TUint8* aData, |
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394 TUint32* aBinaryData) |
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395 { |
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396 //Divert if the character is larger than expected; the criterion |
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397 //for choosing this function is only a heuristic, because it's perfectly legal for |
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398 //a character's bitmap to be wider than its escapement. |
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399 // |
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400 //Use a dummy value (0) for semi-ascent because this character is not italic and so semi-ascent |
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401 //is irrelevant; it's used for pseudo-italic slanting. |
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402 |
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403 TInt dataheight = aDataSize.iHeight; |
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404 TInt datalength = aDataSize.iWidth; |
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405 |
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406 TInt bitindex=0; |
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407 TInt16 repeatcount=0; |
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408 TUint32* binarydataptr=aBinaryData; |
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409 TUint32* binarydataptrlimit; |
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410 for(TInt charline=0;charline<dataheight;charline+=repeatcount) // for lines in the character... |
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411 { |
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412 repeatcount=Load16(aData+(bitindex>>3)); |
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413 repeatcount>>=bitindex&7; |
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414 TInt multilineflag=repeatcount&1; |
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415 repeatcount>>=1; |
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416 repeatcount&=0xf; |
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417 bitindex+=5; |
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418 binarydataptrlimit=aBinaryData+charline+repeatcount; |
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419 if(multilineflag) |
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420 { |
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421 while(binarydataptr<binarydataptrlimit) |
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422 { |
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423 TInt chardataoffsetptr=TInt(aData)+(bitindex>>3); |
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424 TUint32* chardataword=(TUint32*)(chardataoffsetptr&~3); |
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425 TInt bitshift=bitindex&7; |
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426 bitshift+=(chardataoffsetptr&3)<<3; |
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427 *binarydataptr=(*chardataword++)>>bitshift; |
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428 if(bitshift) *binarydataptr|=(*chardataword<<(32-bitshift)); |
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429 bitindex+=datalength; |
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430 binarydataptr++; |
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431 } |
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432 } |
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433 else |
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434 { |
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435 TInt chardataoffsetptr=TInt(aData)+(bitindex>>3); |
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436 TUint32* chardataword=(TUint32*)(chardataoffsetptr&~3); |
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437 TInt bitshift=bitindex&7; |
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438 bitshift+=(chardataoffsetptr&3)<<3; |
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439 TUint32 data=(*chardataword++)>>bitshift; |
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440 if(bitshift) data|=(*chardataword<<(32-bitshift)); |
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441 while(binarydataptr<binarydataptrlimit) |
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442 *binarydataptr++=data; |
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443 bitindex+=datalength; |
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444 } |
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445 } |
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446 } |
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447 |
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448 /** |
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449 Decodes binary data for extra large monochrome bitmap. |
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450 |
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451 @param aDataSize Image size. |
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452 @param aData Pointer to a source buffer. |
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453 @param aStride Image data stride. |
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454 @param aBinaryData Pointer to a destination buffer. |
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455 */ |
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456 void CFontGlyphTree::DecodeBinaryDataExLarge(const TSize& aDataSize, const TUint8* aData, TInt aStride, |
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457 TUint32* aBinaryData) |
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458 { |
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459 const TInt datalength = aDataSize.iWidth; |
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460 const TInt dataheight = aDataSize.iHeight; |
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461 TInt bitindex=0; |
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462 TInt16 repeatcount=0; |
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463 TUint32* slbuffer=aBinaryData; |
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464 const TInt slwords=aStride; |
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465 |
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466 for(TInt charline=0;charline<dataheight;charline+=repeatcount) // for lines in the character... |
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467 { |
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468 repeatcount=Load16(aData+(bitindex>>3)); |
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469 repeatcount>>=bitindex&7; |
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470 const TInt multilineflag=repeatcount&1; |
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471 repeatcount>>=1; |
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472 repeatcount&=0xf; |
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473 bitindex+=5; |
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474 if(multilineflag) |
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475 { |
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476 for(TInt currentline=0;currentline<repeatcount;currentline++) |
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477 { |
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478 CopyCharLine(slbuffer,slwords,aData+(bitindex>>3),bitindex&7,datalength, 1); |
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479 bitindex+=datalength; |
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480 } |
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481 } |
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482 else |
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483 { |
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484 CopyCharLine(slbuffer,slwords,aData+(bitindex>>3),bitindex&7,datalength, repeatcount); |
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485 bitindex+=datalength; |
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486 } |
|
487 } |
|
488 } |
|
489 |
|
490 /** |
|
491 Copies image data line(s) to a destination. |
|
492 |
|
493 @param aBinaryDataPtr pointer to a destination buffer. |
|
494 @param aBufferWords Stride of the image. |
|
495 @param aData Pointer to a source buffer. |
|
496 @param aBitShift Number of bits, binary data will be shifted. |
|
497 @param aCharWidth Width of the image. |
|
498 @param aRepeatCount Number of lines to copy. |
|
499 |
|
500 @panic DGDIAdapter 1018, if a null binary data pointer is passed in. |
|
501 */ |
|
502 void CFontGlyphTree::CopyCharLine(TUint32*& aBinaryDataPtr,TInt aBufferWords,const TUint8* aData,TInt aBitShift,TInt aCharWidth, TInt16 aRepeatCount) |
|
503 { |
|
504 GRAPHICS_ASSERT_DEBUG(aBinaryDataPtr, EDirectGdiPanicInvalidPointer);//this shouldn't happen, as we always allocate memory prior to call this function |
|
505 aBitShift&=7; |
|
506 TInt wordstocopy=(aCharWidth+31)>>5; |
|
507 if(wordstocopy>aBufferWords) wordstocopy=aBufferWords; |
|
508 TUint32* ptrlimit=aBinaryDataPtr+wordstocopy; |
|
509 TUint32* dataword=(TUint32*)(TInt(aData)&~3); |
|
510 aBitShift+=(TInt(aData)-TInt(dataword))<<3; |
|
511 |
|
512 TUint32* startBinaryDataPtr = aBinaryDataPtr; |
|
513 while(aBinaryDataPtr<ptrlimit) |
|
514 { |
|
515 *aBinaryDataPtr=*dataword++; |
|
516 *aBinaryDataPtr>>=aBitShift; |
|
517 if(aBitShift) *aBinaryDataPtr|=(*dataword<<(32-aBitShift)); |
|
518 aBinaryDataPtr++; |
|
519 } |
|
520 |
|
521 TUint32* curStartBinaryDataPtr = aBinaryDataPtr; |
|
522 TInt byteToCopy = wordstocopy << 2; |
|
523 while(aRepeatCount > 1) |
|
524 { |
|
525 Mem::Copy(curStartBinaryDataPtr, startBinaryDataPtr, byteToCopy); |
|
526 curStartBinaryDataPtr += wordstocopy; |
|
527 |
|
528 aRepeatCount--; |
|
529 } |
|
530 aBinaryDataPtr = curStartBinaryDataPtr; |
|
531 } |
|
532 |
|
533 /** |
|
534 Destroys OpenVG images and set variables to NULL |
|
535 |
|
536 @param aForeground Pointer to the foreground VGImage. |
|
537 @param aOutline Pointer to the outline VGImage. |
|
538 @param aShadow Pointer to the shadow VGImage. |
|
539 */ |
|
540 void CFontGlyphTree::DestroyVGImage(VGImage* aForeground, VGImage* aOutline, VGImage* aShadow) |
|
541 { |
|
542 if(aForeground && *aForeground) |
|
543 { |
|
544 vgDestroyImage(*aForeground); |
|
545 *aForeground = VG_INVALID_HANDLE; |
|
546 } |
|
547 if(aOutline && *aOutline) |
|
548 { |
|
549 vgDestroyImage(*aOutline); |
|
550 *aOutline = VG_INVALID_HANDLE; |
|
551 } |
|
552 if(aShadow && *aShadow) |
|
553 { |
|
554 vgDestroyImage(*aShadow); |
|
555 *aShadow = VG_INVALID_HANDLE; |
|
556 } |
|
557 } |
|
558 |
|
559 /** |
|
560 Goes through all entries and deletes VG images. |
|
561 */ |
|
562 void CFontGlyphTree::DestroyAllVGImagesL() |
|
563 { |
|
564 if(iGlyphTree) |
|
565 { |
|
566 TBool isEntry = EFalse; |
|
567 TBtreePos pos; |
|
568 isEntry = iGlyphTree -> FirstL(pos); |
|
569 //go through all entries and delete VG images |
|
570 while (isEntry) |
|
571 { |
|
572 TGlyphEntry entry; |
|
573 TGlyphEntryCompound entryC; |
|
574 (iGlyphType == EFourColourBlendGlyphBitmap) ? |
|
575 ((TBtreeFix<TGlyphEntryCompound, TChar> *) iGlyphTree) -> ExtractAtL(pos, entryC) : |
|
576 ((TBtreeFix<TGlyphEntry, TChar> *) iGlyphTree) -> ExtractAtL(pos, entry); |
|
577 |
|
578 if(iGlyphType == EFourColourBlendGlyphBitmap) |
|
579 { |
|
580 DestroyVGImage(&entryC.iForeground, &entryC.iOutline, &entryC.iShadow); |
|
581 } |
|
582 else |
|
583 { |
|
584 DestroyVGImage(&entry.iForeground); |
|
585 } |
|
586 isEntry = iGlyphTree -> NextL(pos); |
|
587 } |
|
588 iCacheSize = 0; |
|
589 iGlyphTree -> ClearL(); |
|
590 } |
|
591 } |
|
592 |
|
593 /** |
|
594 Allows OpenVG images to be created in OOM conditions. Images will not be added to the binary tree. |
|
595 */ |
|
596 template <class K> |
|
597 void CFontGlyphTree::GlyphImageEntryOOML(TGlyphBitmapType aGlyphType, const TUint8* aGlyphImage, const TSize& aGlyphImageSize, K& aEntry, TUint8* aData, TUint8* aDataOutline, TUint8* aDataShadow) |
|
598 { |
|
599 switch(aGlyphType) |
|
600 { |
|
601 case EFourColourBlendGlyphBitmap: |
|
602 { |
|
603 CreateVGImageL(aGlyphImage, aGlyphImageSize, aEntry.iForeground, ((TGlyphEntryCompound&) aEntry).iOutline, ((TGlyphEntryCompound&) aEntry).iShadow, aData, aDataOutline, aDataShadow); |
|
604 break; |
|
605 } |
|
606 case EMonochromeGlyphBitmap: |
|
607 CreateVGImageL(aGlyphImage, aGlyphImageSize, EGray2, aEntry.iForeground, aData); |
|
608 break; |
|
609 case EAntiAliasedGlyphBitmap: |
|
610 CreateVGImageL(aGlyphImage, aGlyphImageSize, EGray256, aEntry.iForeground, aData); |
|
611 break; |
|
612 default: |
|
613 User::Leave(KErrNotSupported); |
|
614 } |
|
615 } |
|
616 |
|
617 //--------------class CFontGlyphImageStorage -------------------- |
|
618 /** |
|
619 Constructor for the font glyph image storage. |
|
620 |
|
621 @param aMaxCacheSize The maximum cache size in bytes. If storage exceeds this value, the least usable binary tree will be destroyed. |
|
622 */ |
|
623 CFontGlyphImageStorage::CFontGlyphImageStorage(TInt aMaxCacheSize) : |
|
624 iFontTreeList(128), |
|
625 iMaxCacheSize(aMaxCacheSize) |
|
626 { |
|
627 } |
|
628 |
|
629 /** |
|
630 Destructor for the font glyph image storage. |
|
631 |
|
632 Removes and destroys all binary tree's entries in the list. |
|
633 */ |
|
634 CFontGlyphImageStorage::~CFontGlyphImageStorage() |
|
635 { |
|
636 CleanGlyphImageCache(); |
|
637 DeletePreAllocatedImages(); |
|
638 } |
|
639 |
|
640 /** |
|
641 The function will free memory by deleting the least usable font tree, if the size of the cache exceeds |
|
642 some pre-defined value. |
|
643 |
|
644 @see MFontGlyphImageStorage |
|
645 @panic DGDIAdapter 46, if there is an inconsistency in the internal glyph cache structure. |
|
646 */ |
|
647 void CFontGlyphImageStorage::CleanCacheIfRequired() |
|
648 { |
|
649 if(iCacheSize > iMaxCacheSize) |
|
650 { |
|
651 if(iFontTreeList.Count() == 1)//if it is only one tree, just delete all images |
|
652 { |
|
653 TInt aOldTreeSize = iFontTreeList[0]->CacheSize(); |
|
654 TRAP_IGNORE(iFontTreeList[0]->DestroyAllVGImagesL()); |
|
655 GRAPHICS_ASSERT_DEBUG(0 == (iCacheSize - (aOldTreeSize - iFontTreeList[0]->CacheSize())), EDirectGdiPanicGlyphCacheDataInconsistent); |
|
656 iCacheSize = 0; |
|
657 } |
|
658 else |
|
659 { |
|
660 CFontGlyphTree* fontTree = iFontTreeList[iFontTreeList.Count() - 1]; |
|
661 iFontTreeList.Remove(iFontTreeList.Count() - 1); |
|
662 GRAPHICS_ASSERT_DEBUG(iCacheSize >= fontTree->CacheSize(), EDirectGdiPanicGlyphCacheDataInconsistent); |
|
663 iCacheSize -= fontTree->CacheSize(); //since we removed the tree, we must update overall cache size to reflect this fact |
|
664 delete fontTree; |
|
665 } |
|
666 } |
|
667 } |
|
668 |
|
669 /** |
|
670 Removes all glyph trees from the storage. |
|
671 |
|
672 @see MFontGlyphImageStorage |
|
673 */ |
|
674 void CFontGlyphImageStorage::CleanGlyphImageCache() |
|
675 { |
|
676 iFontTreeList.ResetAndDestroy(); |
|
677 iCacheSize = 0; |
|
678 } |
|
679 |
|
680 /** |
|
681 @test |
|
682 |
|
683 @return Current glyph cache size in bytes. |
|
684 @see MFontGlyphImageStorage |
|
685 */ |
|
686 TInt CFontGlyphImageStorage::GlyphCacheSize() const |
|
687 { |
|
688 return iCacheSize; |
|
689 } |
|
690 |
|
691 /** |
|
692 Sets the maximum size in bytes of the glyph cache. Checks the current size of |
|
693 the cache and sets the maximum cache size if the current cache size is smaller |
|
694 or equal to aCacheSize. |
|
695 @param aMaxCacheSize The maximum size in bytes to allow for the glyph cache. |
|
696 @return KErrNone if the maximum cache size has been changed successfully, |
|
697 KErrArgument if aMaxCacheSize is smaller than the current cache size. |
|
698 */ |
|
699 TInt CFontGlyphImageStorage::SetMaxGlyphCacheSize(TInt aMaxCacheSize) |
|
700 { |
|
701 if (iCacheSize <= aMaxCacheSize) |
|
702 { |
|
703 iMaxCacheSize = aMaxCacheSize; |
|
704 return KErrNone; |
|
705 } |
|
706 |
|
707 return KErrArgument; |
|
708 } |
|
709 |
|
710 /** |
|
711 @return Max glyph cache size in bytes. |
|
712 @see MFontGlyphImageStorage |
|
713 */ |
|
714 TInt CFontGlyphImageStorage::MaxGlyphCacheSize() const |
|
715 { |
|
716 return iMaxCacheSize; |
|
717 } |
|
718 |
|
719 /** |
|
720 Fills aFontListId parameter with font Id in order from most to least usable. |
|
721 |
|
722 @test |
|
723 @see MFontGlyphImageStorage |
|
724 |
|
725 @return KErrNone, if the insertion is successful, otherwise one of the system wide error codes. |
|
726 */ |
|
727 TInt CFontGlyphImageStorage::FontIdInOrder(RArray<TUint32> & aFontListId) const |
|
728 { |
|
729 TInt err = KErrNone; |
|
730 aFontListId.Reset(); |
|
731 |
|
732 for(TInt index = 0; (index < iFontTreeList.Count()) && (err == KErrNone); index++) |
|
733 { |
|
734 CFontGlyphTree* glyphTree = iFontTreeList[index]; |
|
735 err = aFontListId.Append(glyphTree->FontId()); |
|
736 } |
|
737 |
|
738 return err; |
|
739 } |
|
740 |
|
741 /** |
|
742 Enforce the system to emulate OOM failure. As sequence pre-allocated images will be used. |
|
743 |
|
744 @test |
|
745 @see MFontGlyphImageStorage |
|
746 */ |
|
747 #ifdef _DEBUG |
|
748 void CFontGlyphImageStorage::EnforceOOMFailure(TBool aEnforce) |
|
749 { |
|
750 iEnforceOOM = aEnforce; |
|
751 } |
|
752 #else |
|
753 void CFontGlyphImageStorage::EnforceOOMFailure(TBool /*aEnforce*/) |
|
754 { |
|
755 } |
|
756 #endif |
|
757 |
|
758 /** |
|
759 Retrieves OpenVG images from the font image cache. If the image doesn't exist, the function will create a new one from the bitmap glyph image and |
|
760 add it into the font image cache. |
|
761 Each font corresponds to a particular tree of glyph images. |
|
762 The function's search is performed in two steps: |
|
763 1. It tries to identify the glyph tree associated with the font. Otherwise a new tree will be created |
|
764 2. Within the tree the function will search for the particular glyph entry. Otherwise a new glyph entry will be created |
|
765 If the size of the cache exceeds some pre-defined value, the least usable tree with all its entries will be deleted. |
|
766 If the function fails to place the element into the tree due to shortage of memory, it will |
|
767 still try to create VGImages without adding them to the binary tree. |
|
768 @see CVgEngine::DrawGlyph |
|
769 @see MFontGlyphImageStorage |
|
770 |
|
771 @param aFontId Unique Font Id. |
|
772 @param aGlypCode General Unicode character value. |
|
773 @param aGlyphBitmapType A type for the format of a glyph bitmap. |
|
774 @param aGlyphImage Glyph bitmap image data. |
|
775 @param aGlyphImageSize The size of the glyph bitmap image data. |
|
776 @param aImageForeground Pointer to VGImage text foreground handle. |
|
777 @param aImageShadow Pointer to VGImage text shadow handle. |
|
778 @param aImageOutline Pointer to VGImage text outline handle. |
|
779 |
|
780 @pre Rendering engine has been constructed. |
|
781 @post Requested OpenVG images are ready for rendering. |
|
782 |
|
783 @panic DGDIAdapter 1018, if a null glyph image pointer is passed in. |
|
784 @return On success KErrNone, |
|
785 KErrArgument if passed parameters are not correct, |
|
786 KErrNotSupported if functionality is not supported, otherwise one of the other system-wide error codes. |
|
787 */ |
|
788 TInt CFontGlyphImageStorage::GlyphImage(TUint32 aFontId, TChar aGlypCode, TGlyphBitmapType aGlyphBitmapType, const TUint8* aGlyphImage, const TSize& aGlyphImageSize, |
|
789 TAny* aImageForeground, TAny* aImageShadow, TAny* aImageOutline) |
|
790 { |
|
791 if((aGlyphImageSize.iHeight <= 0) || (aGlyphImageSize.iWidth <= 0)) |
|
792 { |
|
793 return KErrArgument; |
|
794 } |
|
795 GRAPHICS_ASSERT_ALWAYS(aGlyphImage, EDirectGdiPanicInvalidPointer); // maybe needs to change assertion type |
|
796 GRAPHICS_ASSERT_ALWAYS(aImageForeground, EDirectGdiPanicInvalidPointer); // maybe needs to change assertion type |
|
797 GRAPHICS_ASSERT_ALWAYS((aImageShadow && aImageOutline) || (aGlyphBitmapType != EFourColourBlendGlyphBitmap), EDirectGdiPanicInvalidPointer); // maybe needs to change assertion type |
|
798 |
|
799 TInt res = KErrNone; |
|
800 CFontGlyphTree* fontTree = NULL; |
|
801 TInt index = 0; |
|
802 |
|
803 for(; index < iFontTreeList.Count(); index++) |
|
804 { |
|
805 CFontGlyphTree* fontTreeTemp = iFontTreeList[index]; |
|
806 if(fontTreeTemp->FontId() == aFontId) |
|
807 { |
|
808 fontTree = fontTreeTemp; |
|
809 break; |
|
810 } |
|
811 } |
|
812 |
|
813 if(!fontTree) |
|
814 { |
|
815 #ifdef _DEBUG |
|
816 if(!iEnforceOOM) |
|
817 { |
|
818 #endif |
|
819 //there is no tree for that font, thus create one |
|
820 TRAP(res, fontTree = CFontGlyphTree::NewL(aFontId, aGlyphBitmapType)); |
|
821 if(res == KErrNone) |
|
822 { |
|
823 res = iFontTreeList.Insert(fontTree, 0); |
|
824 if(res != KErrNone) |
|
825 { |
|
826 delete fontTree; |
|
827 fontTree = NULL; |
|
828 } |
|
829 } |
|
830 #ifdef _DEBUG |
|
831 } |
|
832 #endif |
|
833 } |
|
834 else if(index != 0) |
|
835 {//reorder the tree |
|
836 iFontTreeList.Remove(index); |
|
837 res = iFontTreeList.Insert(fontTree, 0); |
|
838 if(res != KErrNone) |
|
839 { //we have to delete fontTree as it is not stored anywhere. |
|
840 delete fontTree; |
|
841 fontTree = NULL; |
|
842 } |
|
843 } |
|
844 |
|
845 #ifdef _DEBUG |
|
846 if(iEnforceOOM && (res == KErrNone)) |
|
847 { |
|
848 res = KErrNoMemory; |
|
849 } |
|
850 #endif |
|
851 if(res == KErrNone) |
|
852 { |
|
853 CleanCacheIfRequired(); |
|
854 TInt treeCacheSize = fontTree->CacheSize(); |
|
855 if(aGlyphBitmapType == EFourColourBlendGlyphBitmap) |
|
856 { |
|
857 TRAP(res, fontTree->GlyphImageEntryL(aGlypCode, aGlyphImage, aGlyphImageSize, iEntryCompound, NULL)); |
|
858 } |
|
859 else |
|
860 { |
|
861 TRAP(res, fontTree->GlyphImageEntryL(aGlypCode, aGlyphImage, aGlyphImageSize, iEntry, aGlyphBitmapType == EMonochromeGlyphBitmap ? iForegroundData : NULL)); |
|
862 } |
|
863 if(res == KErrNone) |
|
864 { |
|
865 iCacheSize += (fontTree->CacheSize() - treeCacheSize); |
|
866 if(aGlyphBitmapType == EFourColourBlendGlyphBitmap) |
|
867 { |
|
868 *(static_cast <VGImage*> (aImageForeground)) = iEntryCompound.iForeground; |
|
869 *(static_cast <VGImage*> (aImageShadow)) = iEntryCompound.iShadow; |
|
870 *(static_cast <VGImage*> (aImageOutline)) = iEntryCompound.iOutline; |
|
871 } |
|
872 else |
|
873 { |
|
874 if(aImageShadow) |
|
875 { |
|
876 *(static_cast <VGImage*> (aImageShadow)) = VG_INVALID_HANDLE; |
|
877 } |
|
878 if(aImageOutline) |
|
879 { |
|
880 *(static_cast <VGImage*> (aImageOutline)) = VG_INVALID_HANDLE; |
|
881 } |
|
882 |
|
883 *(static_cast <VGImage*> (aImageForeground)) = iEntry.iForeground; |
|
884 } |
|
885 } |
|
886 } |
|
887 |
|
888 //create glyph images for OOM conditions, without putting the entry into the tree |
|
889 if((res == KErrNoMemory) && iImagesPreAllocated && (iImageSize.iWidth >= aGlyphImageSize.iWidth ) && (iImageSize.iHeight >= aGlyphImageSize.iHeight)) |
|
890 { |
|
891 const TInt bufferSize = iImageSize.iWidth * iImageSize.iHeight; |
|
892 Mem::FillZ(iForegroundData, bufferSize); |
|
893 VGImageFormat imageFormat = VG_sL_8; |
|
894 TInt vgCompatibleSourceStride = iImageSize.iWidth; |
|
895 |
|
896 if(aGlyphBitmapType == EFourColourBlendGlyphBitmap) |
|
897 { |
|
898 Mem::FillZ(iShadowData, bufferSize); |
|
899 Mem::FillZ(iOutlineData, bufferSize); |
|
900 iEntryCompound.iForeground = iImageForeground; |
|
901 iEntryCompound.iOutline = iImageOutline; |
|
902 iEntryCompound.iShadow = iImageShadow; |
|
903 |
|
904 vgImageSubData(iEntryCompound.iForeground, iForegroundData, vgCompatibleSourceStride, imageFormat, |
|
905 0, 0, iImageSize.iWidth, iImageSize.iHeight); |
|
906 |
|
907 vgImageSubData(iEntryCompound.iOutline, iOutlineData, vgCompatibleSourceStride, imageFormat, |
|
908 0, 0, iImageSize.iWidth, iImageSize.iHeight); |
|
909 |
|
910 vgImageSubData(iEntryCompound.iShadow, iShadowData, vgCompatibleSourceStride, imageFormat, |
|
911 0, 0, iImageSize.iWidth, iImageSize.iHeight); |
|
912 |
|
913 TRAP_IGNORE(CFontGlyphTree::GlyphImageEntryOOML(aGlyphBitmapType, aGlyphImage, aGlyphImageSize, iEntryCompound, iForegroundData, iShadowData, iOutlineData)); |
|
914 *(static_cast <VGImage*> (aImageForeground)) = iImageForeground; |
|
915 *(static_cast <VGImage*> (aImageShadow)) = iImageShadow; |
|
916 *(static_cast <VGImage*> (aImageOutline)) = iImageOutline; |
|
917 } |
|
918 else |
|
919 { |
|
920 iEntry.iForeground = iImageForeground; |
|
921 vgImageSubData(iEntry.iForeground, iForegroundData, vgCompatibleSourceStride, imageFormat, |
|
922 0, 0, iImageSize.iWidth, iImageSize.iHeight); |
|
923 |
|
924 TRAP_IGNORE(CFontGlyphTree::GlyphImageEntryOOML(aGlyphBitmapType, aGlyphImage, aGlyphImageSize, iEntry, iForegroundData, NULL, NULL)); |
|
925 *(static_cast <VGImage*> (aImageForeground)) = iImageForeground; |
|
926 } |
|
927 } |
|
928 |
|
929 return res; |
|
930 } |
|
931 |
|
932 /** |
|
933 Creates VGImages for use in low memory conditions |
|
934 */ |
|
935 TInt CFontGlyphImageStorage::PreAllocateImages() |
|
936 { |
|
937 iImageSize = KMaxSizeImageOOM; |
|
938 |
|
939 #ifdef DRAWGLYPH_MULTIPLY_MODE |
|
940 // For image_multiply mode need 32bits for each glyph instrad of 8 for non-multiply mode. |
|
941 const TInt bufferSize = iImageSize.iWidth * iImageSize.iHeight * 4; |
|
942 #else |
|
943 const TInt bufferSize = iImageSize.iWidth * iImageSize.iHeight; |
|
944 #endif |
|
945 if(!iForegroundData) |
|
946 { |
|
947 iForegroundData = (TUint8*) User::Alloc(bufferSize); |
|
948 if(!iForegroundData) |
|
949 { |
|
950 return KErrNoMemory; |
|
951 } |
|
952 } |
|
953 |
|
954 if(!iShadowData) |
|
955 { |
|
956 iShadowData = (TUint8*) User::Alloc(bufferSize); |
|
957 if(!iShadowData) |
|
958 { |
|
959 return KErrNoMemory; |
|
960 } |
|
961 } |
|
962 |
|
963 if(!iOutlineData) |
|
964 { |
|
965 iOutlineData = (TUint8*) User::Alloc(bufferSize); |
|
966 if(!iOutlineData) |
|
967 { |
|
968 return KErrNoMemory; |
|
969 } |
|
970 } |
|
971 |
|
972 const VGImageFormat imageFormat = VG_sL_8; |
|
973 if(iImageForeground == VG_INVALID_HANDLE) |
|
974 { |
|
975 |
|
976 iImageForeground = vgCreateImage(imageFormat, |
|
977 iImageSize.iWidth, |
|
978 iImageSize.iHeight, |
|
979 VG_IMAGE_QUALITY_NONANTIALIASED); |
|
980 if(iImageForeground == VG_INVALID_HANDLE) |
|
981 { |
|
982 return KErrNoMemory; |
|
983 } |
|
984 } |
|
985 |
|
986 if(iImageShadow == VG_INVALID_HANDLE) |
|
987 { |
|
988 iImageShadow = vgCreateImage(imageFormat, |
|
989 iImageSize.iWidth, |
|
990 iImageSize.iHeight, |
|
991 VG_IMAGE_QUALITY_NONANTIALIASED); |
|
992 if(iImageShadow == VG_INVALID_HANDLE) |
|
993 { |
|
994 return KErrNoMemory; |
|
995 } |
|
996 } |
|
997 |
|
998 if(iImageOutline == VG_INVALID_HANDLE) |
|
999 { |
|
1000 iImageOutline = vgCreateImage(imageFormat, |
|
1001 iImageSize.iWidth, |
|
1002 iImageSize.iHeight, |
|
1003 VG_IMAGE_QUALITY_NONANTIALIASED); |
|
1004 if(iImageOutline == VG_INVALID_HANDLE) |
|
1005 { |
|
1006 return KErrNoMemory; |
|
1007 } |
|
1008 } |
|
1009 |
|
1010 iImagesPreAllocated = ETrue; |
|
1011 return KErrNone; |
|
1012 } |
|
1013 |
|
1014 /** |
|
1015 Deletes all pre-allocated images and frees buffers. |
|
1016 */ |
|
1017 void CFontGlyphImageStorage::DeletePreAllocatedImages() |
|
1018 { |
|
1019 if(iForegroundData) |
|
1020 { |
|
1021 User::Free(iForegroundData); |
|
1022 iForegroundData = NULL; |
|
1023 } |
|
1024 |
|
1025 if(iShadowData) |
|
1026 { |
|
1027 User::Free(iShadowData); |
|
1028 iShadowData = NULL; |
|
1029 } |
|
1030 |
|
1031 if(iOutlineData) |
|
1032 { |
|
1033 User::Free(iOutlineData); |
|
1034 iOutlineData = NULL; |
|
1035 } |
|
1036 |
|
1037 if(iImageForeground != VG_INVALID_HANDLE) |
|
1038 { |
|
1039 vgDestroyImage(iImageForeground); |
|
1040 iImageForeground = VG_INVALID_HANDLE; |
|
1041 } |
|
1042 |
|
1043 if(iImageShadow != VG_INVALID_HANDLE) |
|
1044 { |
|
1045 vgDestroyImage(iImageShadow); |
|
1046 iImageShadow = VG_INVALID_HANDLE; |
|
1047 } |
|
1048 |
|
1049 if(iImageOutline != VG_INVALID_HANDLE) |
|
1050 { |
|
1051 vgDestroyImage(iImageOutline); |
|
1052 iImageOutline = VG_INVALID_HANDLE; |
|
1053 } |
|
1054 iImagesPreAllocated = EFalse; |
|
1055 } |