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1 /* |
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2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Implementation of CHuiTextureAnimationState. |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #include <e32base.h> |
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21 #include <fbs.h> |
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22 #include <bitstd.h> |
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23 #include <uiacceltk/HuiUtil.h> |
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24 #include "huitextureanimationstate.h" |
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25 |
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26 /** |
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27 * Modifiable bitmap helper class for CHuiTextureAnimationState. |
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28 */ |
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29 NONSHARABLE_CLASS( CHuiModifiableBitmap ) : public CBase |
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30 { |
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31 public: |
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32 /** |
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33 * Two-phased constructor. This creates new bitmap, |
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34 * this instance owns it until @c ReleaseBitmap is called. |
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35 * @param aSize size of bitmap. |
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36 * @param aMode display mode of bitmap. |
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37 */ |
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38 static CHuiModifiableBitmap* NewLC( const TSize& aSize, TDisplayMode aMode ); |
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39 |
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40 /** |
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41 * Two-phased constructor. Use another bitmap and ownership |
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42 * is not taken. |
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43 * @param aBitmap bitmap to be modified. |
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44 */ |
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45 static CHuiModifiableBitmap* NewLC( CFbsBitmap& aBitmap ); |
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46 |
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47 /** |
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48 * Destructor. |
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49 */ |
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50 ~CHuiModifiableBitmap(); |
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51 |
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52 /** |
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53 * Returns graphics context. Ownership is not passed. |
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54 * @return graphics context. |
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55 */ |
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56 CFbsBitGc& Context(); |
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57 |
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58 /** |
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59 * Releases bitmap and passes ownership to caller. |
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60 * After this has been called, bitmap operations should not |
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61 * be performed through this class. |
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62 * @return bitmap. |
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63 */ |
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64 CFbsBitmap* ReleaseBitmap(); |
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65 |
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66 /** |
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67 * Clears the whole bitmap with specified color. |
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68 * @param aColor color to use. |
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69 */ |
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70 void Clear( const TRgb& aColor ); |
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71 |
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72 /** |
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73 * Clears area of bitmap with specified color. |
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74 * @param aRect area to fill. |
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75 * @param aColor color to use. |
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76 */ |
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77 void Clear( const TRect& aRect, const TRgb& aColor ); |
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78 |
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79 /** |
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80 * Copies area from another bitmap to this one. |
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81 * @param aRect area to copy. |
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82 * @param aBitmap source bitmap. |
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83 */ |
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84 void BitBlt( const TRect& aRect, CHuiModifiableBitmap& aBitmap ); |
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85 |
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86 /** |
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87 * Combines source and mask bitmap to this 16MA bitmap. |
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88 * @param aSrc bitmap. |
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89 * @param aSrcMask mask bitmap. |
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90 */ |
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91 void Combine( const CFbsBitmap& aSrc, const CFbsBitmap& aSrcMask ); |
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92 |
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93 /** |
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94 * Combines source and mask bitmap to this 16MA bitmap. |
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95 * @para aPos position of bitmap. |
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96 * @param aSrc bitmap. |
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97 * @param aSrcMask mask bitmap. |
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98 */ |
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99 void Combine( const TPoint& aPos, const CFbsBitmap& aSrc, const CFbsBitmap& aSrcMask ); |
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100 |
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101 /** |
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102 * Combines gray 256 mask to this gray 256 bitmap. |
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103 * It's expected that aMask contains only 0 or 255 values. |
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104 * @param aRect rect to combine. |
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105 * @param aMask gray 256 bitmap. |
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106 */ |
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107 void CombineMasks( const TRect& aRect, CFbsBitmap* aMask ); |
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108 |
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109 /** |
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110 * Extracts alpha from 16MA source to this EGray256 bitmap. |
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111 * @param aSource source bitmap. |
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112 */ |
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113 void ExtractAlpha( CHuiModifiableBitmap& aSource ); |
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114 |
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115 /** |
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116 * Extracts color from 16MA source to this EColor64K/EColor16MU bitmap. |
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117 * @param aSource source bitmap. |
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118 */ |
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119 void ExtractColor( CHuiModifiableBitmap& aSource ); |
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120 |
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121 private: |
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122 void ConstructL( const TSize& aSize, TDisplayMode aMode ); |
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123 void ConstructL( CFbsBitmap& aBitmap ); |
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124 |
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125 template<class Converter> |
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126 static void DoExtractColor( CFbsBitmap* aTarget, CFbsBitmap* aSource ); |
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127 |
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128 struct Convert16MA_16MU |
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129 { |
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130 inline static TUint32 Convert( TUint32 aPixel ); |
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131 }; |
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132 struct Convert16MA_64K |
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133 { |
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134 inline static TUint32 Convert( TUint32 aPixel ); |
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135 }; |
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136 |
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137 private: |
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138 /** |
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139 * Boolean value indicating if iBitmap is owned by this class. |
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140 */ |
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141 TBool iOwnBitmap; |
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142 /** |
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143 * Bitmap instance. Ownership depends on value of iOwnBitmap. |
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144 */ |
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145 CFbsBitmap* iBitmap; |
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146 /** |
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147 * Bitmap device. |
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148 * Own. |
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149 */ |
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150 CFbsBitmapDevice* iDevice; |
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151 /** |
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152 * Graphics context. |
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153 * Own. |
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154 */ |
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155 CFbsBitGc* iGc; |
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156 }; |
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157 |
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158 CHuiTextureAnimationState* CHuiTextureAnimationState::NewL( |
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159 TInt aTextureGroupId, const TDesC& aImageFile, TInt aFrameCount ) |
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160 { |
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161 CHuiTextureAnimationState* self = new (ELeave) CHuiTextureAnimationState; |
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162 CleanupStack::PushL( self ); |
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163 self->ConstructL( aTextureGroupId, aImageFile, aFrameCount ); |
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164 CleanupStack::Pop( self ); |
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165 return self; |
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166 } |
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167 |
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168 CHuiTextureAnimationState::~CHuiTextureAnimationState() |
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169 { |
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170 HUI_DEBUG1(_L("CHuiTextureAnimationState(%x): Destroyed"), this ); |
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171 delete iFile; |
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172 |
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173 delete iPrevFrame; |
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174 delete iPrevFrameMask; |
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175 } |
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176 |
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177 TInt CHuiTextureAnimationState::OwnerTextureGroupId() const |
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178 { |
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179 return iTextureGroupId; |
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180 } |
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181 |
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182 TBool CHuiTextureAnimationState::CheckIfCanProduce( |
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183 const TDesC& aImageFile, TInt aFrameNumber, TInt aFrameCount ) const |
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184 { |
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185 aFrameNumber--; |
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186 |
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187 TBool ok = ( aFrameCount == iFrameCount ) && |
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188 ( iFrame <= aFrameNumber ) && |
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189 !aImageFile.CompareF( *iFile ); |
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190 |
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191 return ok; |
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192 } |
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193 |
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194 TInt CHuiTextureAnimationState::GetNextFrameNumber() const |
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195 { |
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196 return ( iFrame + 1 ); |
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197 } |
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198 |
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199 void CHuiTextureAnimationState::OfferNextFrameInfo( |
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200 const TFrameInfo& aFrameInfo ) |
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201 { |
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202 if ( iFrame == KErrNotFound ) |
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203 { |
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204 // First frame defines size of all frames; subsequent frames |
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205 // are deltas to first frame. |
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206 iSize = aFrameInfo.iOverallSizeInPixels; |
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207 } |
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208 |
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209 iNextSubFrameRect = aFrameInfo.iFrameCoordsInPixels; |
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210 iNextSubFrameBgColor = aFrameInfo.iBackgroundColor; |
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211 |
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212 if ( aFrameInfo.iFlags & TFrameInfo::ERestoreToPrevious ) |
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213 { |
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214 iNextSubFrameDisposalAction = ERestoreToPrevious; |
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215 } |
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216 else if ( aFrameInfo.iFlags & TFrameInfo::ELeaveInPlace ) |
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217 { |
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218 // The variable name "'ELeave'InPlace" will cause FALSE positive in CodeScanners "Leave scan" |
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219 iNextSubFrameDisposalAction = ELeaveInPlace; |
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220 } |
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221 else if ( aFrameInfo.iFlags & TFrameInfo::ERestoreToBackground ) |
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222 { |
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223 iNextSubFrameDisposalAction = ERestoreToBackgroundColour; |
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224 } |
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225 else |
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226 { |
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227 iNextSubFrameDisposalAction = EUnspecified; |
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228 } |
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229 |
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230 // If EAlphaChannel flag is on, EGray256 style alpha is available. |
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231 // If ETransparencyPossible flag is on, just EGray2. |
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232 iNextSubFrameHasAlpha = aFrameInfo.iFlags & TFrameInfo::EAlphaChannel; |
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233 } |
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234 |
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235 TSize CHuiTextureAnimationState::OverallSize() const |
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236 { |
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237 return iSize; |
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238 } |
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239 |
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240 void CHuiTextureAnimationState::ProduceNextFrameL( |
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241 CFbsBitmap*& aNewFrame, |
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242 CFbsBitmap*& aNewFrameMask, |
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243 CFbsBitmap* aSubFrame, |
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244 CFbsBitmap* aSubFrameMask ) |
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245 { |
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246 HUI_DEBUG2(_L("CHuiTextureAnimationState(%x): Produce next %d"), |
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247 this, iFrame + 1 ); |
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248 HUI_DEBUG4(_L("CHuiTextureAnimationState(%x): pf:%x pfm:%x d:%d"), |
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249 this, iPrevFrame, iPrevFrameMask, iNextSubFrameDisposalAction ); |
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250 aNewFrame = NULL; |
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251 aNewFrameMask = NULL; |
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252 CheckSubFrameL( aSubFrame, aSubFrameMask ); |
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253 |
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254 if ( iFrame == KErrNotFound ) |
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255 { |
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256 // Check if previous frames can be reused. |
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257 const TSize frameSize = OverallSize(); |
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258 if ( iPrevFrame ) |
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259 { |
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260 if ( iPrevFrame->SizeInPixels() != frameSize || |
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261 iPrevFrame->DisplayMode() != aSubFrame->DisplayMode() ) |
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262 { |
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263 delete iPrevFrame; |
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264 iPrevFrame = NULL; |
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265 } |
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266 } |
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267 if ( iPrevFrameMask && aSubFrameMask ) |
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268 { |
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269 if ( iPrevFrameMask->SizeInPixels() != frameSize || |
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270 iPrevFrameMask->DisplayMode() != aSubFrameMask->DisplayMode() ) |
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271 { |
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272 delete iPrevFrameMask; |
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273 iPrevFrameMask = NULL; |
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274 } |
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275 } |
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276 else |
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277 { |
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278 delete iPrevFrameMask; |
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279 iPrevFrameMask = NULL; |
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280 } |
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281 |
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282 if ( !iNextSubFrameHasAlpha || !aSubFrameMask ) |
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283 { |
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284 HUI_DEBUG1(_L("CHuiTextureAnimationState(%x): Quick 1st"), this ); |
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285 QuickProduceFirstFrameAndGeneratePreviousL( |
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286 aNewFrame, aNewFrameMask, |
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287 aSubFrame, aSubFrameMask ); |
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288 } |
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289 else |
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290 { |
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291 HUI_DEBUG1(_L("CHuiTextureAnimationState(%x): Slow 1st"), this ); |
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292 ProduceFirstFrameAndGeneratePreviousL( |
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293 aNewFrame, aNewFrameMask, |
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294 aSubFrame, aSubFrameMask ); |
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295 } |
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296 |
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297 if ( !aNewFrameMask ) |
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298 { |
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299 // So mask was not needed - get rid of previous (if any) |
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300 delete iPrevFrameMask; |
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301 iPrevFrameMask = NULL; |
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302 } |
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303 } |
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304 else |
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305 { |
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306 if ( !iPrevFrame ) |
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307 { |
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308 User::Leave( KErrNotSupported ); |
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309 } |
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310 |
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311 if ( !iNextSubFrameHasAlpha || |
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312 !aSubFrameMask || |
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313 !iPrevFrameMask ) |
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314 { |
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315 HUI_DEBUG1(_L("CHuiTextureAnimationState(%x): Quick 2-"), this ); |
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316 QuickProduceNextFrameAndUpdatePreviousL( |
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317 aNewFrame, aNewFrameMask, |
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318 aSubFrame, aSubFrameMask ); |
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319 } |
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320 else |
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321 { |
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322 HUI_DEBUG1(_L("CHuiTextureAnimationState(%x): Slow 2-"), this ); |
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323 ProduceNextFrameAndUpdatePreviousL( |
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324 aNewFrame, aNewFrameMask, |
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325 aSubFrame, aSubFrameMask ); |
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326 } |
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327 } |
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328 |
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329 iFrame++; // Go to next frame |
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330 |
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331 if ( iFrame == ( iFrameCount - 1 ) ) |
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332 { |
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333 // Reset back to the beginning |
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334 iFrame = KErrNotFound; |
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335 } |
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336 HUI_DEBUG1(_L("CHuiTextureAnimationState(%x): Produce next done"), this ); |
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337 } |
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338 |
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339 void CHuiTextureAnimationState::ProceedWithoutNextFrameL( |
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340 CFbsBitmap* aSubFrame, |
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341 CFbsBitmap* aSubFrameMask ) |
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342 { |
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343 // This could be optimized. However, if this method is called, |
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344 // it means that client is anyway using the API in very performance |
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345 // inefficient way, i.e. asking system to load random frames rather |
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346 // than in sequence 0, 1, ..., N. |
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347 |
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348 CFbsBitmap* frame = NULL; |
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349 CFbsBitmap* frameMask = NULL; |
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350 |
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351 ProduceNextFrameL( frame, frameMask, aSubFrame, aSubFrameMask ); |
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352 |
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353 delete frame; |
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354 delete frameMask; |
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355 } |
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356 |
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357 CHuiTextureAnimationState::CHuiTextureAnimationState() |
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358 { |
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359 HUI_DEBUG1(_L("CHuiTextureAnimationState(%x): Created"), this ); |
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360 } |
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361 |
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362 void CHuiTextureAnimationState::ConstructL( |
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363 TInt aTextureGroupId, const TDesC& aImageFile, TInt aFrameCount ) |
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364 { |
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365 iTextureGroupId = aTextureGroupId; |
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366 iFile = aImageFile.AllocL(); |
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367 iFrame = KErrNotFound; |
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368 iFrameCount = aFrameCount; |
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369 } |
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370 |
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371 void CHuiTextureAnimationState::ProduceFirstFrameAndGeneratePreviousL( |
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372 CFbsBitmap*& aNewFrame, |
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373 CFbsBitmap*& aNewFrameMask, |
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374 CFbsBitmap* aSubFrame, |
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375 CFbsBitmap* aSubFrameMask ) |
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376 { |
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377 if ( !aSubFrameMask ) |
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378 { |
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379 User::Leave( KErrNotSupported ); |
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380 } |
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381 |
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382 const TSize frameSize = OverallSize(); |
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383 |
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384 // Make scratch |
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385 CHuiModifiableBitmap* scratch = |
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386 CHuiModifiableBitmap::NewLC( frameSize, EColor16MA ); |
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387 scratch->Combine( iNextSubFrameRect.iTl, *aSubFrame, *aSubFrameMask ); |
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388 |
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389 // Extract new frame & mask |
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390 CHuiModifiableBitmap* frame = |
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391 CHuiModifiableBitmap::NewLC( frameSize, aSubFrame->DisplayMode() ); |
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392 frame->ExtractColor( *scratch ); |
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393 |
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394 CHuiModifiableBitmap* frameMask = |
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395 CHuiModifiableBitmap::NewLC( frameSize, EGray256 ); |
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396 frameMask->ExtractAlpha( *scratch ); |
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397 |
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398 // Create prev frame & mask |
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399 CHuiModifiableBitmap* prevFrame = |
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400 iPrevFrame ? |
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401 CHuiModifiableBitmap::NewLC( *iPrevFrame ) : |
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402 CHuiModifiableBitmap::NewLC( frameSize, aSubFrame->DisplayMode() ); |
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403 |
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404 CHuiModifiableBitmap* prevFrameMask = |
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405 iPrevFrameMask ? |
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406 CHuiModifiableBitmap::NewLC( *iPrevFrameMask ) : |
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407 CHuiModifiableBitmap::NewLC( frameSize, EGray256 ); |
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408 |
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409 prevFrame->Clear( BitmapClearColor() ); |
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410 prevFrameMask->Clear( MaskClearColor() ); |
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411 |
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412 switch ( iNextSubFrameDisposalAction ) |
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413 { |
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414 case ELeaveInPlace: |
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415 prevFrame->BitBlt( iNextSubFrameRect, *frame ); |
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416 prevFrameMask->BitBlt( iNextSubFrameRect, *frameMask ); |
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417 break; |
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418 |
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419 case ERestoreToPrevious: |
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420 case EUnspecified: |
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421 case ERestoreToBackgroundColour: |
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422 default: |
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423 break; |
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424 } |
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425 |
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426 // Cleanup |
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427 iPrevFrameMask = prevFrameMask->ReleaseBitmap(); |
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428 CleanupStack::PopAndDestroy( prevFrameMask ); |
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429 |
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430 iPrevFrame = prevFrame->ReleaseBitmap(); |
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431 CleanupStack::PopAndDestroy( prevFrame ); |
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432 |
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433 aNewFrameMask = frameMask->ReleaseBitmap(); |
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434 CleanupStack::PopAndDestroy( frameMask ); |
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435 |
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436 aNewFrame = frame->ReleaseBitmap(); |
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437 CleanupStack::PopAndDestroy( frame ); |
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438 CleanupStack::PopAndDestroy( scratch ); |
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439 } |
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440 |
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441 void CHuiTextureAnimationState::ProduceNextFrameAndUpdatePreviousL( |
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442 CFbsBitmap*& aNewFrame, |
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443 CFbsBitmap*& aNewFrameMask, |
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444 CFbsBitmap* aSubFrame, |
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445 CFbsBitmap* aSubFrameMask ) |
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446 { |
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447 if ( !aSubFrameMask || !iPrevFrameMask ) |
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448 { |
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449 User::Leave( KErrNotSupported ); |
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450 } |
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451 |
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452 const TSize frameSize = OverallSize(); |
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453 |
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454 // Make previous state and blit new subframe on top of that |
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455 CHuiModifiableBitmap* scratch = |
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456 CHuiModifiableBitmap::NewLC( frameSize, EColor16MA ); |
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457 scratch->Combine( *iPrevFrame, *iPrevFrameMask ); |
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458 |
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459 scratch->Context().BitBltMasked( |
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460 iNextSubFrameRect.iTl, |
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461 aSubFrame, |
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462 TRect( aSubFrame->SizeInPixels() ), |
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463 aSubFrameMask, |
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464 ETrue ); |
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465 |
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466 // Extract new frame & mask |
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467 CHuiModifiableBitmap* frame = |
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468 CHuiModifiableBitmap::NewLC( frameSize, aSubFrame->DisplayMode() ); |
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469 frame->ExtractColor( *scratch ); |
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470 |
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471 CHuiModifiableBitmap* frameMask = |
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472 CHuiModifiableBitmap::NewLC( frameSize, EGray256 ); |
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473 frameMask->ExtractAlpha( *scratch ); |
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474 |
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475 // Update previous frame & mask |
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476 CHuiModifiableBitmap* prevFrame = |
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477 CHuiModifiableBitmap::NewLC( *iPrevFrame ); |
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478 CHuiModifiableBitmap* prevFrameMask = |
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479 CHuiModifiableBitmap::NewLC( *iPrevFrameMask ); |
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480 |
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481 switch ( iNextSubFrameDisposalAction ) |
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482 { |
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483 case EUnspecified: |
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484 case ERestoreToBackgroundColour: |
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485 prevFrameMask->Clear( iNextSubFrameRect, MaskClearColor() ); |
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486 prevFrame->Clear( iNextSubFrameRect, BitmapClearColor() ); |
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487 break; |
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488 |
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489 case ELeaveInPlace: |
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490 prevFrame->BitBlt( iNextSubFrameRect, *frame ); |
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491 prevFrameMask->BitBlt( iNextSubFrameRect, *frameMask ); |
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492 break; |
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493 |
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494 case ERestoreToPrevious: |
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495 default: |
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496 break; |
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497 } |
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498 |
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499 CleanupStack::PopAndDestroy( prevFrameMask ); |
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500 CleanupStack::PopAndDestroy( prevFrame ); |
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501 |
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502 aNewFrame = frame->ReleaseBitmap(); |
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503 aNewFrameMask = frameMask->ReleaseBitmap(); |
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504 |
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505 CleanupStack::PopAndDestroy( frameMask ); |
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506 CleanupStack::PopAndDestroy( frame ); |
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507 |
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508 CleanupStack::PopAndDestroy( scratch ); |
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509 } |
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510 |
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511 void CHuiTextureAnimationState::QuickProduceFirstFrameAndGeneratePreviousL( |
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512 CFbsBitmap*& aNewFrame, |
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513 CFbsBitmap*& aNewFrameMask, |
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514 CFbsBitmap* aSubFrame, |
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515 CFbsBitmap* aSubFrameMask ) |
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516 { |
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517 const TSize frameSize = OverallSize(); |
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518 const TBool hasAlpha = ( aSubFrameMask != NULL ); |
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519 |
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520 const TBool exactMatch = |
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521 ( TRect( frameSize ) == iNextSubFrameRect ) && |
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522 ( aSubFrame->SizeInPixels() == frameSize ); |
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523 |
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524 // Produce new frame & mask |
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525 CHuiModifiableBitmap* frame = |
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526 CHuiModifiableBitmap::NewLC( frameSize, aSubFrame->DisplayMode() ); |
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527 |
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528 CHuiModifiableBitmap* frameMask = NULL; |
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529 if ( hasAlpha ) |
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530 { |
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531 frameMask = CHuiModifiableBitmap::NewLC( frameSize, EGray256 ); |
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532 |
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533 frame->Clear( BitmapClearColor() ); |
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534 if ( !exactMatch ) |
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535 { |
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536 frameMask->Clear( MaskClearColor() ); |
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537 } |
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538 |
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539 frame->Context().BitBltMasked( |
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540 iNextSubFrameRect.iTl, |
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541 aSubFrame, |
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542 TRect( aSubFrame->SizeInPixels() ), |
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543 aSubFrameMask, |
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544 ETrue ); |
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545 frameMask->Context().BitBlt( iNextSubFrameRect.iTl, aSubFrameMask ); |
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546 } |
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547 else |
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548 { |
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549 if ( !exactMatch ) |
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550 { |
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551 frame->Clear( iNextSubFrameBgColor ); |
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552 } |
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553 frame->Context().BitBlt( iNextSubFrameRect.iTl, aSubFrame ); |
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554 } |
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555 |
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556 // Create prev frame & mask |
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557 CHuiModifiableBitmap* prevFrame = |
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558 iPrevFrame ? |
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559 CHuiModifiableBitmap::NewLC( *iPrevFrame ) : |
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560 CHuiModifiableBitmap::NewLC( frameSize, aSubFrame->DisplayMode() ); |
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561 |
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562 CHuiModifiableBitmap* prevFrameMask = NULL; |
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563 if ( hasAlpha ) |
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564 { |
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565 prevFrameMask = |
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566 iPrevFrameMask ? |
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567 CHuiModifiableBitmap::NewLC( *iPrevFrameMask ) : |
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568 CHuiModifiableBitmap::NewLC( frameSize, EGray256 ); |
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569 } |
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570 |
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571 const TRgb clearColor = |
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572 hasAlpha ? |
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573 BitmapClearColor() : |
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574 iNextSubFrameBgColor; |
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575 prevFrame->Clear( clearColor ); |
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576 if ( prevFrameMask ) |
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577 { |
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578 prevFrameMask->Clear( MaskClearColor() ); |
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579 } |
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580 |
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581 switch ( iNextSubFrameDisposalAction ) |
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582 { |
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583 case ELeaveInPlace: |
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584 prevFrame->BitBlt( iNextSubFrameRect, *frame ); |
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585 if ( prevFrameMask ) |
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586 { |
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587 prevFrameMask->BitBlt( iNextSubFrameRect, *frameMask ); |
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588 } |
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589 break; |
|
590 |
|
591 case ERestoreToPrevious: |
|
592 case EUnspecified: |
|
593 case ERestoreToBackgroundColour: |
|
594 default: |
|
595 break; |
|
596 } |
|
597 |
|
598 // Cleanup |
|
599 if ( prevFrameMask ) |
|
600 { |
|
601 iPrevFrameMask = prevFrameMask->ReleaseBitmap(); |
|
602 CleanupStack::PopAndDestroy( prevFrameMask ); |
|
603 } |
|
604 |
|
605 iPrevFrame = prevFrame->ReleaseBitmap(); |
|
606 CleanupStack::PopAndDestroy( prevFrame ); |
|
607 |
|
608 if ( frameMask ) |
|
609 { |
|
610 aNewFrameMask = frameMask->ReleaseBitmap(); |
|
611 CleanupStack::PopAndDestroy( frameMask ); |
|
612 } |
|
613 |
|
614 aNewFrame = frame->ReleaseBitmap(); |
|
615 CleanupStack::PopAndDestroy( frame ); |
|
616 } |
|
617 |
|
618 void CHuiTextureAnimationState::QuickProduceNextFrameAndUpdatePreviousL( |
|
619 CFbsBitmap*& aNewFrame, |
|
620 CFbsBitmap*& aNewFrameMask, |
|
621 CFbsBitmap* aSubFrame, |
|
622 CFbsBitmap* aSubFrameMask ) |
|
623 { |
|
624 const TSize frameSize = OverallSize(); |
|
625 const TBool hasAlpha = aSubFrameMask != NULL; |
|
626 |
|
627 // Produce frame & frame mask |
|
628 CHuiModifiableBitmap* frame = |
|
629 CHuiModifiableBitmap::NewLC( frameSize, aSubFrame->DisplayMode() ); |
|
630 frame->Context().BitBlt( TPoint(), iPrevFrame ); |
|
631 |
|
632 CHuiModifiableBitmap* frameMask = NULL; |
|
633 if ( iPrevFrameMask ) |
|
634 { |
|
635 frameMask = |
|
636 CHuiModifiableBitmap::NewLC( frameSize, EGray256 ); |
|
637 frameMask->Context().BitBlt( TPoint(), iPrevFrameMask ); |
|
638 } |
|
639 |
|
640 if ( hasAlpha ) |
|
641 { |
|
642 frame->Context().SetBrushStyle( CGraphicsContext::ENullBrush ); |
|
643 frame->Context().BitBltMasked( |
|
644 iNextSubFrameRect.iTl, |
|
645 aSubFrame, |
|
646 TRect( aSubFrame->SizeInPixels() ), |
|
647 aSubFrameMask, |
|
648 ETrue ); |
|
649 |
|
650 if ( iPrevFrameMask ) |
|
651 { |
|
652 // Merge masks: |
|
653 // prev: 255 sub: 255 frame: 255 |
|
654 // prev: 255 sub: 0 frame: 255 |
|
655 // prev: 0 sub: 255 frame: 255 |
|
656 // prev: 0 sub: 0 frame: 0 |
|
657 // => OR style behaviour works |
|
658 frameMask->CombineMasks( iNextSubFrameRect, aSubFrameMask ); |
|
659 } |
|
660 } |
|
661 else |
|
662 { |
|
663 frame->Context().BitBlt( iNextSubFrameRect.iTl, aSubFrame ); |
|
664 |
|
665 if ( iPrevFrameMask ) |
|
666 { |
|
667 frameMask->Clear( iNextSubFrameRect, MaskOpaqueColor() ); |
|
668 } |
|
669 } |
|
670 |
|
671 // Update previous frame & mask |
|
672 CHuiModifiableBitmap* prevFrame = |
|
673 CHuiModifiableBitmap::NewLC( *iPrevFrame ); |
|
674 CHuiModifiableBitmap* prevFrameMask = NULL; |
|
675 if ( iPrevFrameMask ) |
|
676 { |
|
677 prevFrameMask = |
|
678 CHuiModifiableBitmap::NewLC( *iPrevFrameMask ); |
|
679 } |
|
680 |
|
681 switch ( iNextSubFrameDisposalAction ) |
|
682 { |
|
683 case EUnspecified: |
|
684 case ERestoreToBackgroundColour: |
|
685 if ( prevFrameMask ) |
|
686 { |
|
687 prevFrameMask->Clear( iNextSubFrameRect, MaskClearColor() ); |
|
688 prevFrame->Clear( iNextSubFrameRect, BitmapClearColor() ); |
|
689 } |
|
690 else |
|
691 { |
|
692 prevFrame->Clear( iNextSubFrameRect, iNextSubFrameBgColor ); |
|
693 } |
|
694 break; |
|
695 |
|
696 case ELeaveInPlace: |
|
697 prevFrame->BitBlt( iNextSubFrameRect, *frame ); |
|
698 if ( prevFrameMask ) |
|
699 { |
|
700 prevFrameMask->BitBlt( iNextSubFrameRect, *frameMask ); |
|
701 } |
|
702 break; |
|
703 |
|
704 case ERestoreToPrevious: |
|
705 default: |
|
706 break; |
|
707 } |
|
708 |
|
709 if ( prevFrameMask ) |
|
710 { |
|
711 CleanupStack::PopAndDestroy( prevFrameMask ); |
|
712 } |
|
713 CleanupStack::PopAndDestroy( prevFrame ); |
|
714 |
|
715 aNewFrame = frame->ReleaseBitmap(); |
|
716 if ( frameMask ) |
|
717 { |
|
718 aNewFrameMask = frameMask->ReleaseBitmap(); |
|
719 CleanupStack::PopAndDestroy( frameMask ); |
|
720 } |
|
721 CleanupStack::PopAndDestroy( frame ); |
|
722 } |
|
723 |
|
724 inline TRgb CHuiTextureAnimationState::BitmapClearColor() |
|
725 { |
|
726 return TRgb(0,0,0); // black |
|
727 } |
|
728 |
|
729 inline TRgb CHuiTextureAnimationState::MaskClearColor() |
|
730 { |
|
731 return TRgb::Gray256( 0 ); // transparent for EGray256 masks |
|
732 } |
|
733 |
|
734 inline TRgb CHuiTextureAnimationState::MaskOpaqueColor() |
|
735 { |
|
736 return TRgb::Gray256( 255 ); // opaque for EGray256 masks |
|
737 } |
|
738 |
|
739 void CHuiTextureAnimationState::CheckSubFrameL( |
|
740 CFbsBitmap* aSubFrame, |
|
741 CFbsBitmap* aSubFrameMask ) |
|
742 { |
|
743 if ( !aSubFrame ) |
|
744 { |
|
745 User::Leave( KErrNotSupported ); |
|
746 } |
|
747 |
|
748 // aSubFrame display mode should be either 64K or 16MU, |
|
749 // but let's check it. |
|
750 const TDisplayMode subFrameMode = aSubFrame->DisplayMode(); |
|
751 if ( ( subFrameMode != EColor64K && subFrameMode != EColor16MU ) || |
|
752 aSubFrame->IsCompressedInRAM() ) |
|
753 { |
|
754 User::Leave( KErrNotSupported ); |
|
755 } |
|
756 |
|
757 // aSubFrameMask should be EGray256 |
|
758 if ( aSubFrameMask ) |
|
759 { |
|
760 if ( ( aSubFrameMask->DisplayMode() != EGray256 ) || |
|
761 aSubFrame->IsCompressedInRAM() ) |
|
762 { |
|
763 User::Leave( KErrNotSupported ); |
|
764 } |
|
765 } |
|
766 } |
|
767 |
|
768 |
|
769 |
|
770 // |
|
771 // CHuiModifiableBitmap implementation |
|
772 // |
|
773 |
|
774 |
|
775 CHuiModifiableBitmap* CHuiModifiableBitmap::NewLC( |
|
776 const TSize& aSize, TDisplayMode aMode ) |
|
777 { |
|
778 CHuiModifiableBitmap* self = new (ELeave) CHuiModifiableBitmap; |
|
779 CleanupStack::PushL( self ); |
|
780 self->ConstructL( aSize, aMode ); |
|
781 return self; |
|
782 } |
|
783 |
|
784 CHuiModifiableBitmap* CHuiModifiableBitmap::NewLC( |
|
785 CFbsBitmap& aBitmap ) |
|
786 { |
|
787 CHuiModifiableBitmap* self = new (ELeave) CHuiModifiableBitmap; |
|
788 CleanupStack::PushL( self ); |
|
789 self->ConstructL( aBitmap ); |
|
790 return self; |
|
791 } |
|
792 |
|
793 CHuiModifiableBitmap::~CHuiModifiableBitmap() |
|
794 { |
|
795 delete iGc; |
|
796 delete iDevice; |
|
797 if ( iOwnBitmap ) |
|
798 { |
|
799 delete iBitmap; |
|
800 } |
|
801 } |
|
802 |
|
803 CFbsBitGc& CHuiModifiableBitmap::Context() |
|
804 { |
|
805 return *iGc; |
|
806 } |
|
807 |
|
808 CFbsBitmap* CHuiModifiableBitmap::ReleaseBitmap() |
|
809 { |
|
810 delete iGc; |
|
811 iGc = NULL; |
|
812 delete iDevice; |
|
813 iDevice = NULL; |
|
814 CFbsBitmap* bitmap = iBitmap; |
|
815 iBitmap = NULL; |
|
816 return bitmap; |
|
817 } |
|
818 |
|
819 void CHuiModifiableBitmap::Clear( const TRgb& aColor ) |
|
820 { |
|
821 iGc->SetBrushStyle( CGraphicsContext::ESolidBrush ); |
|
822 iGc->SetBrushColor( aColor ); |
|
823 iGc->Clear(); |
|
824 iGc->SetBrushStyle( CGraphicsContext::ENullBrush ); |
|
825 } |
|
826 |
|
827 void CHuiModifiableBitmap::Clear( const TRect& aRect, const TRgb& aColor ) |
|
828 { |
|
829 iGc->SetBrushStyle( CGraphicsContext::ESolidBrush ); |
|
830 iGc->SetBrushColor( aColor ); |
|
831 iGc->Clear( aRect ); |
|
832 iGc->SetBrushStyle( CGraphicsContext::ENullBrush ); |
|
833 } |
|
834 |
|
835 void CHuiModifiableBitmap::BitBlt( |
|
836 const TRect& aRect, CHuiModifiableBitmap& aBitmap ) |
|
837 { |
|
838 if ( iGc && aBitmap.iBitmap && iBitmap ) |
|
839 { |
|
840 // Copy area from one bitmap to another. Same size expected. |
|
841 iGc->BitBlt( aRect.iTl, aBitmap.iBitmap, aRect ); |
|
842 } |
|
843 } |
|
844 |
|
845 void CHuiModifiableBitmap::Combine( |
|
846 const CFbsBitmap& aSrc, const CFbsBitmap& aSrcMask ) |
|
847 { |
|
848 if ( iBitmap ) |
|
849 { |
|
850 Combine( TPoint(), aSrc, aSrcMask ); |
|
851 } |
|
852 } |
|
853 |
|
854 void CHuiModifiableBitmap::Combine( |
|
855 const TPoint& aPos, const CFbsBitmap& aSrc, const CFbsBitmap& aSrcMask ) |
|
856 { |
|
857 if ( iBitmap ) |
|
858 { |
|
859 // Clear with transparent |
|
860 iGc->SetDrawMode( CGraphicsContext::EDrawModeWriteAlpha ); |
|
861 iGc->SetBrushStyle( CGraphicsContext::ESolidBrush ); |
|
862 iGc->SetBrushColor( TRgb( 0, 0, 0, 0 ) ); |
|
863 iGc->Clear(); |
|
864 iGc->SetBrushStyle( CGraphicsContext::ENullBrush ); |
|
865 iGc->SetDrawMode( CGraphicsContext::EDrawModePEN ); |
|
866 |
|
867 // Blit masked |
|
868 iGc->BitBltMasked( |
|
869 aPos, |
|
870 &aSrc, |
|
871 TRect( aSrc.SizeInPixels() ), |
|
872 &aSrcMask, |
|
873 ETrue ); |
|
874 } |
|
875 } |
|
876 |
|
877 void CHuiModifiableBitmap::CombineMasks( |
|
878 const TRect& aRect, |
|
879 CFbsBitmap* aMask ) |
|
880 { |
|
881 if ( iBitmap ) |
|
882 { |
|
883 // this is EGray256, aMask is EGray256 |
|
884 TRect targetRect( aRect ); |
|
885 targetRect.Intersection( iBitmap->SizeInPixels() ); |
|
886 targetRect.Intersection( TRect( aRect.iTl, aMask->SizeInPixels() ) ); |
|
887 |
|
888 if ( targetRect.IsEmpty() ) |
|
889 { |
|
890 // nothing to draw |
|
891 return; |
|
892 } |
|
893 |
|
894 // Starting target & source point and size to draw |
|
895 const TPoint targetPoint = targetRect.iTl; |
|
896 const TPoint sourcePoint = targetRect.iTl - aRect.iTl; |
|
897 const TSize size = targetRect.Size(); |
|
898 |
|
899 // Go through all pixels using OR operation. |
|
900 // As aMask contains only 0 or 255 values, it is |
|
901 // sufficient to combine these masks. |
|
902 TBitmapUtil source(aMask); |
|
903 TBitmapUtil target(iBitmap); |
|
904 |
|
905 source.Begin( sourcePoint ); |
|
906 target.Begin( targetPoint ); |
|
907 |
|
908 for( TInt y = 0; y < size.iHeight; ++y ) |
|
909 { |
|
910 source.SetPos( sourcePoint + TPoint(0,y) ); |
|
911 target.SetPos( targetPoint + TPoint(0,y) ); |
|
912 |
|
913 for( TInt x = 0; x < size.iWidth; ++x ) |
|
914 { |
|
915 TUint32 pixel = source.GetPixel(); |
|
916 if ( pixel ) |
|
917 { |
|
918 target.SetPixel( target.GetPixel() | pixel ); |
|
919 } |
|
920 |
|
921 target.IncXPos(); |
|
922 source.IncXPos(); |
|
923 } |
|
924 } |
|
925 |
|
926 target.End(); |
|
927 source.End(); |
|
928 } |
|
929 } |
|
930 |
|
931 void CHuiModifiableBitmap::ExtractAlpha( CHuiModifiableBitmap& aSource ) |
|
932 { |
|
933 if ( iBitmap && aSource.iBitmap ) |
|
934 { |
|
935 // this is EGray256, aSource is 16MA |
|
936 |
|
937 TBitmapUtil source(aSource.iBitmap); |
|
938 TBitmapUtil target(iBitmap); |
|
939 |
|
940 source.Begin( TPoint() ); |
|
941 target.Begin( TPoint() ); |
|
942 |
|
943 const TSize size( iBitmap->SizeInPixels() ); |
|
944 for( TInt y = 0; y < size.iHeight; ++y ) |
|
945 { |
|
946 source.SetPos( TPoint( 0, y) ); |
|
947 target.SetPos( TPoint( 0, y) ); |
|
948 |
|
949 for( TInt x = 0; x < size.iWidth; ++x ) |
|
950 { |
|
951 target.SetPixel( source.GetPixel() >> 24 ); |
|
952 |
|
953 target.IncXPos(); |
|
954 source.IncXPos(); |
|
955 } |
|
956 } |
|
957 |
|
958 target.End(); |
|
959 source.End(); |
|
960 } |
|
961 } |
|
962 |
|
963 void CHuiModifiableBitmap::ExtractColor( CHuiModifiableBitmap& aSource ) |
|
964 { |
|
965 // this is color, aSource is 16MA |
|
966 |
|
967 if ( iBitmap && aSource.iBitmap ) |
|
968 { |
|
969 TDisplayMode mode = iBitmap->DisplayMode(); |
|
970 if ( mode == EColor64K ) |
|
971 { |
|
972 DoExtractColor<Convert16MA_64K>( iBitmap, aSource.iBitmap ); |
|
973 } |
|
974 else if ( mode == EColor16MU ) |
|
975 { |
|
976 DoExtractColor<Convert16MA_16MU>( iBitmap, aSource.iBitmap ); |
|
977 } |
|
978 } |
|
979 } |
|
980 |
|
981 void CHuiModifiableBitmap::ConstructL( const TSize& aSize, TDisplayMode aMode ) |
|
982 { |
|
983 iOwnBitmap = ETrue; |
|
984 iBitmap = new (ELeave) CFbsBitmap; |
|
985 User::LeaveIfError( iBitmap->Create( aSize, aMode ) ); |
|
986 |
|
987 iDevice = CFbsBitmapDevice::NewL( iBitmap ); |
|
988 iDevice->CreateContext( iGc ); |
|
989 User::LeaveIfNull( iGc ); |
|
990 } |
|
991 |
|
992 void CHuiModifiableBitmap::ConstructL( CFbsBitmap& aBitmap ) |
|
993 { |
|
994 iOwnBitmap = EFalse; |
|
995 iBitmap = &aBitmap; |
|
996 |
|
997 iDevice = CFbsBitmapDevice::NewL( iBitmap ); |
|
998 iDevice->CreateContext( iGc ); |
|
999 User::LeaveIfNull( iGc ); |
|
1000 } |
|
1001 |
|
1002 template<typename Converter> |
|
1003 void CHuiModifiableBitmap::DoExtractColor( |
|
1004 CFbsBitmap* aTarget, CFbsBitmap* aSource ) |
|
1005 { |
|
1006 TBitmapUtil source(aSource); |
|
1007 TBitmapUtil target(aTarget); |
|
1008 |
|
1009 source.Begin( TPoint() ); |
|
1010 target.Begin( TPoint() ); |
|
1011 |
|
1012 const TSize size( aTarget->SizeInPixels() ); |
|
1013 for(TInt y = 0; y < size.iHeight; ++y) |
|
1014 { |
|
1015 source.SetPos(TPoint(0, y)); |
|
1016 target.SetPos(TPoint(0, y)); |
|
1017 |
|
1018 for(TInt x = 0; x < size.iWidth; ++x) |
|
1019 { |
|
1020 target.SetPixel( Converter::Convert( source.GetPixel() ) ); |
|
1021 |
|
1022 target.IncXPos(); |
|
1023 source.IncXPos(); |
|
1024 } |
|
1025 } |
|
1026 |
|
1027 target.End(); |
|
1028 source.End(); |
|
1029 } |
|
1030 |
|
1031 inline TUint32 CHuiModifiableBitmap::Convert16MA_16MU::Convert( TUint32 aPixel ) |
|
1032 { |
|
1033 return aPixel | 0xFF000000; |
|
1034 } |
|
1035 |
|
1036 inline TUint32 CHuiModifiableBitmap::Convert16MA_64K::Convert( TUint32 aPixel ) |
|
1037 { |
|
1038 const TUint32 b = (aPixel&0x000000ff)>>3; |
|
1039 const TUint32 g = (aPixel&0x0000fc00)>>5; |
|
1040 const TUint32 r = (aPixel&0x00f80000)>>8; |
|
1041 return (r|g|b); |
|
1042 } |
|
1043 |