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1 // Copyright (c) 1997-2009 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 "BMDRAW.H" |
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17 |
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18 const TInt color16ShadowTable[16] = { |
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19 0, 0, 0, 0, 0, 2, 3, 4, |
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20 11, 12, 13, 0, 0, 0, 1, 14 |
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21 }; |
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22 |
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23 const TInt KPixelsPerWord = 8; |
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24 const TInt KPixelsPerByte = 2; |
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25 const TInt KBitsPerPixel = 4; |
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26 |
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27 // CDrawFourBppBitmapColor |
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28 |
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29 //Initializes iSize, iDrawRect, iLongWidth, iScanlineWords data members. |
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30 //It should be called every time when iSize is going to be changed - from Construct(). |
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31 //@param aSize Physical screen size in pixels. |
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32 //@panic EScreenDriverPanicInvalidSize - Invalid aSize parameter. This might happen if the |
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33 //device is scaled and the scaling origin goes outside physical drawing rectangle. |
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34 void CDrawFourBppBitmapColor::SetSize(const TSize& aSize) |
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35 { |
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36 CDrawBitmap::SetSize(aSize); |
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37 __ASSERT_DEBUG(iSize == aSize, User::Invariant()); |
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38 iLongWidth = (iSize.iWidth + (KPixelsPerWord - 1)) & ~(KPixelsPerWord - 1); |
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39 iScanLineWords = iLongWidth / KPixelsPerWord; |
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40 } |
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41 |
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42 TInt CDrawFourBppBitmapColor::Construct(TSize aSize) |
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43 { |
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44 return Construct(aSize, ((aSize.iWidth + (KPixelsPerWord - 1)) & ~(KPixelsPerWord - 1)) / KPixelsPerByte); |
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45 } |
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46 |
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47 TInt CDrawFourBppBitmapColor::Construct(TSize aSize, TInt aStride) |
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48 { |
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49 iBits = NULL; |
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50 iDispMode = EColor16; |
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51 CDrawBitmap::SetSize(aSize); |
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52 __ASSERT_DEBUG(iSize == aSize, User::Invariant()); |
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53 if (aStride & 3) |
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54 return KErrArgument; |
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55 iLongWidth = aStride * KPixelsPerByte; |
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56 if (iLongWidth < aSize.iWidth) |
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57 return KErrArgument; |
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58 iScanLineWords = aStride >> 2; |
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59 TInt size = 1 + (Max(aSize.iWidth,aSize.iHeight) >> 1); |
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60 if(size < 0) |
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61 return KErrArgument; |
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62 iScanLineBuffer = (TUint32*)(User::Heap().Alloc(size)); |
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63 if (iScanLineBuffer == NULL) |
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64 return KErrNoMemory; |
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65 return KErrNone; |
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66 } |
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67 |
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68 void CDrawFourBppBitmapColor::Shadow(TRgb& aColor) |
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69 { |
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70 if (iShadowMode & EFade) |
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71 aColor = FadeRgb(TRgb::Color16(aColor.Color16())); |
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72 |
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73 if (iShadowMode & EShadow) |
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74 aColor = TRgb::Color16(color16ShadowTable[aColor.Color16()]); |
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75 } |
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76 |
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77 TUint32 CDrawFourBppBitmapColor::ShadowWord(TUint32 aWord) |
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78 { |
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79 TUint32 shadowWord = color16ShadowTable[aWord & 0xf]; |
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80 |
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81 shadowWord |= color16ShadowTable[(aWord >> 4) & 0xf] << 4; |
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82 shadowWord |= color16ShadowTable[(aWord >> 8) & 0xf] << 8; |
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83 shadowWord |= color16ShadowTable[(aWord >> 12) & 0xf] << 12; |
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84 shadowWord |= color16ShadowTable[(aWord >> 16) & 0xf] << 16; |
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85 shadowWord |= color16ShadowTable[(aWord >> 20) & 0xf] << 20; |
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86 shadowWord |= color16ShadowTable[(aWord >> 24) & 0xf] << 24; |
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87 shadowWord |= color16ShadowTable[(aWord >> 28) & 0xf] << 28; |
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88 |
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89 return shadowWord; |
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90 } |
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91 |
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92 TUint32 CDrawFourBppBitmapColor::FadeWord(TUint32 aWord) |
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93 { |
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94 TUint32 fadeWord = FadeRgb(TRgb::Color16(aWord & 0xf)).Color16(); |
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95 |
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96 fadeWord |= FadeRgb(TRgb::Color16((aWord >> 4) & 0xf)).Color16() << 4; |
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97 fadeWord |= FadeRgb(TRgb::Color16((aWord >> 8) & 0xf)).Color16() << 8; |
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98 fadeWord |= FadeRgb(TRgb::Color16((aWord >> 12) & 0xf)).Color16() << 12; |
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99 fadeWord |= FadeRgb(TRgb::Color16((aWord >> 16) & 0xf)).Color16() << 16; |
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100 fadeWord |= FadeRgb(TRgb::Color16((aWord >> 20) & 0xf)).Color16() << 20; |
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101 fadeWord |= FadeRgb(TRgb::Color16((aWord >> 24) & 0xf)).Color16() << 24; |
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102 fadeWord |= FadeRgb(TRgb::Color16((aWord >> 28) & 0xf)).Color16() << 28; |
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103 |
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104 return fadeWord; |
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105 } |
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106 |
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107 TUint32 CDrawFourBppBitmapColor::ColorInt(TRgb aColor) const |
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108 { |
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109 TUint32 colorWord = aColor.Color16(); |
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110 |
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111 colorWord |= colorWord << 4; |
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112 colorWord |= colorWord << 8; |
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113 colorWord |= colorWord << 16; |
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114 |
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115 return colorWord; |
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116 } |
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117 |
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118 void CDrawFourBppBitmapColor::InvertBuffer(TInt aLength,TUint32* aBuffer) |
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119 { |
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120 const TUint32* bufferLimit = aBuffer + ((aLength + KPixelsPerWord - 1) / KPixelsPerWord); |
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121 |
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122 while (aBuffer < bufferLimit) |
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123 *aBuffer++ ^= 0xffffffff; |
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124 } |
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125 |
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126 /** Copies a number of pixels into a word-aligned buffer without format translation. |
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127 Note that the byte length to the target buffer is honoured, |
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128 but the end contents of the last byte are generally overwritten with extra pixel data (or garbage) |
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129 Note that I am assuming the compiler optimiser will convert all these divides and multiplies into shifts! |
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130 @param aX x coordinate to start copy from (need not be aligned at all) |
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131 @param aY y coordinate to copy line from |
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132 @param aLength number of pixels to copy |
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133 @param aBuffer target word-aligned buffer (but may or may not be word length) |
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134 **/ |
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135 void CDrawFourBppBitmapColor::ReadLine(TInt aX,TInt aY,TInt aLength,TAny* aBuffer) const |
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136 { |
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137 TUint32* pixelPtr = ScanLine(aY); |
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138 TInt startLongPix = aX & -KPixelsPerWord; |
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139 pixelPtr += startLongPix / KPixelsPerWord; |
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140 TUint32* bufferPtr = (TUint32*)aBuffer; |
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141 TInt wordsCnt = (aLength+KPixelsPerByte-1) / KPixelsPerWord; //how many words to write to target |
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142 TInt restPixels = aLength - wordsCnt * KPixelsPerWord; //how many pixels left to copy |
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143 TInt bytesCnt = (restPixels+KPixelsPerByte-1) / KPixelsPerByte ; //how many target bytes to copy |
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144 TInt shiftBits = aX - startLongPix; |
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145 restPixels=shiftBits+restPixels; //How many pixels are read from the second word by the final word copy |
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146 if (bytesCnt==0 && shiftBits && restPixels<=0) |
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147 { |
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148 // This correction is required because although a last whole word will be written to the target buffer, |
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149 // this special test indicates that the required significant data bits plus the shift |
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150 // add up to one word (or less) to be read. |
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151 // The copy words optimisation used to copy the main body of the line |
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152 // will read from the next location after the copy, |
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153 // but this may not always be accessable memory (on the last scanline) |
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154 // The correction is not required if the second word would need to be read anyway. |
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155 //eg we want to copy 7 nibbles with a 1 nibble shift (16 color), restpixels would be 0 |
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156 bytesCnt=4; |
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157 wordsCnt--; |
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158 } |
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159 //How many pixels are read from the second word in the final byte copy? |
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160 //If zero (or less) then the second word should not be read in the copy bytes phase |
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161 //really this should be an else of the if above, but this gives the same end condition. |
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162 //eg we want to copy 5 nibbles with a 2 nibble shift (16 color), restpixels would be -1. |
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163 restPixels-=KPixelsPerWord; |
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164 ReadLineCommon(pixelPtr,bufferPtr,wordsCnt,restPixels,bytesCnt,shiftBits*KBitsPerPixel); |
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165 } |
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166 |
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167 |
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168 TRgb CDrawFourBppBitmapColor::ReadRgbNormal(TInt aX,TInt aY) const |
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169 { |
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170 TUint32 col = *(ScanLine(aY) + (aX / KPixelsPerWord)); |
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171 col >>= ((aX & 7) * KBitsPerPixel); |
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172 return TRgb::Color16(col & 0xf); |
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173 } |
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174 |
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175 void CDrawFourBppBitmapColor::ShadowArea(const TRect& aRect) |
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176 { |
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177 __ASSERT_DEBUG(aRect.iTl.iX>=0 && aRect.iBr.iX<=iSize.iWidth,Panic(EScreenDriverPanicOutOfBounds)); |
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178 __ASSERT_DEBUG(aRect.iTl.iY>=0 && aRect.iBr.iY<=iSize.iHeight,Panic(EScreenDriverPanicOutOfBounds)); |
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179 |
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180 const TInt startLong = (aRect.iTl.iX + KPixelsPerWord - 1) & ~7; |
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181 const TInt finishLong = aRect.iBr.iX & ~7; |
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182 const TInt startShift = (startLong - aRect.iTl.iX) * KBitsPerPixel; |
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183 const TInt finishShift = (KPixelsPerWord - aRect.iBr.iX + finishLong) * KBitsPerPixel; |
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184 TUint32* base = ScanLine(aRect.iTl.iY); |
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185 |
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186 if (iShadowMode & EFade) |
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187 { |
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188 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
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189 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
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190 |
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191 if (finishLong < startLong) |
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192 { |
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193 const TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << (32 - startShift)); |
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194 const TUint32 inverseMask = ~mask; |
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195 |
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196 for (TInt y = aRect.iTl.iY; y < aRect.iBr.iY; y++) |
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197 { |
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198 const TUint32 faded = FadeWord(pixelPtrLimit[0]) & mask; |
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199 pixelPtrLimit[0] &= inverseMask; |
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200 pixelPtrLimit[0] |= faded; |
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201 pixelPtrLimit += iScanLineWords; |
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202 } |
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203 } |
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204 else |
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205 { |
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206 for (TInt y = aRect.iTl.iY; y < aRect.iBr.iY; y++) |
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207 { |
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208 if (aRect.iTl.iX < startLong) |
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209 pixelPtr[-1] = PasteInt(pixelPtr[-1],FadeWord(pixelPtr[-1]),startShift); |
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210 |
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211 for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) |
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212 tempPixelPtr[0] = FadeWord(tempPixelPtr[0]); |
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213 |
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214 if (finishLong < aRect.iBr.iX) |
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215 pixelPtrLimit[0] = PasteInt(FadeWord(pixelPtrLimit[0]),pixelPtrLimit[0],finishShift); |
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216 |
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217 pixelPtr += iScanLineWords; |
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218 pixelPtrLimit += iScanLineWords; |
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219 } |
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220 } |
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221 } |
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222 |
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223 if (iShadowMode & EShadow) |
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224 { |
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225 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
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226 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
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227 |
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228 if (finishLong < startLong) |
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229 { |
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230 const TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << (32 - startShift)); |
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231 const TUint32 inverseMask = ~mask; |
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232 |
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233 for (TInt y = aRect.iTl.iY; y < aRect.iBr.iY; y++) |
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234 { |
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235 TUint32 shadowed = ShadowWord(pixelPtrLimit[0]) & mask; |
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236 pixelPtrLimit[0] &= inverseMask; |
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237 pixelPtrLimit[0] |= shadowed; |
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238 pixelPtrLimit += iScanLineWords; |
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239 } |
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240 } |
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241 else |
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242 { |
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243 for (TInt y = aRect.iTl.iY; y < aRect.iBr.iY; y++) |
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244 { |
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245 if (aRect.iTl.iX < startLong) |
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246 pixelPtr[-1] = PasteInt(pixelPtr[-1],ShadowWord(pixelPtr[-1]),startShift); |
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247 |
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248 for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) |
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249 tempPixelPtr[0] = ShadowWord(tempPixelPtr[0]); |
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250 |
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251 if (finishLong < aRect.iBr.iX) |
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252 pixelPtrLimit[0] = PasteInt(ShadowWord(pixelPtrLimit[0]),pixelPtrLimit[0],finishShift); |
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253 |
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254 pixelPtr += iScanLineWords; |
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255 pixelPtrLimit += iScanLineWords; |
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256 } |
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257 } |
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258 } |
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259 } |
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260 |
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261 void CDrawFourBppBitmapColor::ShadowBuffer(TInt aLength,TUint32* aBuffer) |
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262 { |
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263 __ASSERT_DEBUG(aBuffer != NULL,Panic(EScreenDriverPanicInvalidParameter)); |
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264 |
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265 const TUint32* bufferLimit = aBuffer + ((aLength + KPixelsPerWord - 1) / KPixelsPerWord); |
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266 |
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267 if (iShadowMode & EFade) |
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268 { |
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269 for (TUint32* buffer = aBuffer; buffer < bufferLimit; buffer++) |
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270 buffer[0] = FadeWord(buffer[0]); |
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271 } |
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272 |
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273 if (iShadowMode & EShadow) |
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274 { |
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275 for (TUint32* buffer = aBuffer; buffer < bufferLimit; buffer++) |
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276 buffer[0] = ShadowWord(buffer[0]); |
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277 } |
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278 } |
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279 |
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280 void CDrawFourBppBitmapColor::WriteRgb(TInt aX,TInt aY,TRgb aColor) |
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281 { |
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282 TUint32* pixelPtr = ScanLine(aY) + (aX / KPixelsPerWord); |
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283 const TInt shift = (aX & 7) * KBitsPerPixel; |
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284 pixelPtr[0] &= ~(0xf << shift); |
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285 pixelPtr[0] |= aColor.Color16() << shift; |
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286 } |
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287 |
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288 void CDrawFourBppBitmapColor::WriteBinary(TInt aX,TInt aY,TUint32* aData,TInt aLength,TInt aHeight,TRgb aColor) |
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289 { |
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290 const TInt xLimit = aX + aLength; |
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291 const TInt yLimit = aY + aHeight; |
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292 const TUint8 color16 = TUint8(aColor.Color16()); |
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293 |
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294 for (; aY < yLimit; aY++,aData++) |
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295 { |
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296 TUint32 dataMask = 1; |
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297 TUint8* pixelPtr = (TUint8*)ScanLine(aY); |
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298 pixelPtr += aX / 2; |
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299 |
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300 if (color16) |
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301 { |
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302 for (TInt x = aX; x < xLimit; x++,dataMask <<= 1) |
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303 { |
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304 if (aData[0] & dataMask) |
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305 { |
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306 if (x & 1) |
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307 pixelPtr[0] = TUint8((color16 << 4) | (pixelPtr[0] & 0x0f)); |
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308 else |
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309 pixelPtr[0] = TUint8((pixelPtr[0] & 0xf0) | color16); |
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310 } |
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311 |
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312 if (x & 1) |
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313 pixelPtr++; |
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314 } |
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315 } |
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316 else |
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317 { |
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318 TUint8 bytemask = TUint8((aX & 1) ? 0x0f : 0xf0); |
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319 |
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320 for (TInt x = aX; x < xLimit; x++,dataMask <<= 1,bytemask = (TUint8)~bytemask) |
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321 { |
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322 if (aData[0] & dataMask) |
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323 pixelPtr[0] &= bytemask; |
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324 |
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325 if (x & 1) |
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326 pixelPtr++; |
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327 } |
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328 } |
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329 } |
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330 } |
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331 |
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332 void CDrawFourBppBitmapColor::WriteBinaryOp(TInt aX,TInt aY,TUint32* aData,TInt aLength,TInt aHeight,TRgb aColor,CGraphicsContext::TDrawMode aDrawMode) |
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333 { |
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334 const TInt xLimit = aX + aLength; |
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335 const TInt yLimit = aY + aHeight; |
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336 const TInt color16 = aColor.Color16(); |
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337 |
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338 for (; aY < yLimit; aY++) |
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339 { |
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340 TUint32 dataMask = 1; |
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341 TUint8* pixelPtr = ((TUint8*)ScanLine(aY)) + (aX / 2); |
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342 TUint8 bytemask = TUint8((aX & 1) ? 0x0f : 0xf0); |
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343 |
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344 if (color16) |
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345 { |
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346 for (TInt x = aX; x < xLimit; x++,dataMask <<= 1,bytemask = (TUint8)~bytemask) |
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347 { |
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348 if (aData[0] & dataMask) |
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349 { |
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350 TUint8 pixelColorIndex = TUint8((x & 1) ? color16 << 4 : color16); |
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351 if (aDrawMode == CGraphicsContext::EDrawModeXOR) |
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352 pixelPtr[0] = (TUint8)(pixelColorIndex ^ pixelPtr[0]); |
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353 else if (aDrawMode == CGraphicsContext::EDrawModeAND) |
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354 pixelPtr[0] = (TUint8)((pixelColorIndex | bytemask) & pixelPtr[0]); |
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355 else if (aDrawMode == CGraphicsContext::EDrawModeOR) |
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356 pixelPtr[0] = (TUint8)(pixelColorIndex | pixelPtr[0]); |
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357 } |
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358 |
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359 if (x & 1) |
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360 pixelPtr++; |
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361 } |
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362 } |
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363 else |
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364 { |
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365 if (aDrawMode == CGraphicsContext::EDrawModeAND) |
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366 { |
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367 for (TInt x = aX; x < xLimit; x++,dataMask <<= 1,bytemask = (TUint8)~bytemask) |
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368 { |
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369 if (aData[0] & dataMask) |
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370 pixelPtr[0] &= bytemask; |
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371 |
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372 if (x & 1) |
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373 pixelPtr++; |
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374 } |
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375 } |
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376 } |
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377 |
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378 aData++; |
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379 } |
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380 } |
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381 |
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382 void CDrawFourBppBitmapColor::WriteBinaryLineVertical(TInt aX,TInt aY,TUint32* aData,TInt aLength,TRgb aColor,TBool aUp) |
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383 { |
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384 const TInt yLimit = aY + (aUp ? -aLength : aLength); |
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385 TUint32 color16 = aColor.Color16(); |
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386 const TInt scanLineWords = aUp ? -iScanLineWords : iScanLineWords; |
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387 const TInt startWord = aX / KPixelsPerWord; |
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388 const TInt startShift = (aX & 7) * KBitsPerPixel; |
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389 TUint32* pixelPtr = ScanLine(aY) + startWord; |
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390 const TUint32* pixelPtrLimit = ScanLine(yLimit) + startWord; |
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391 const TUint32 mask = ~(0xf << startShift); |
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392 TUint32 dataMask = 1; |
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393 |
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394 if (color16) |
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395 { |
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396 color16 <<= startShift; |
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397 while (pixelPtr != pixelPtrLimit) |
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398 { |
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399 if (!dataMask) |
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400 { |
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401 dataMask = 1; |
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402 aData++; |
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403 } |
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404 |
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405 if (aData[0] & dataMask) |
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406 { |
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407 pixelPtr[0] &= mask; |
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408 pixelPtr[0] |= color16; |
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409 } |
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410 |
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411 dataMask <<= 1; |
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412 pixelPtr += scanLineWords; |
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413 } |
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414 } |
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415 else |
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416 { |
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417 while (pixelPtr != pixelPtrLimit) |
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418 { |
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419 if (!dataMask) |
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420 { |
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421 dataMask = 1; |
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422 aData++; |
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423 } |
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424 |
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425 if (aData[0] & dataMask) |
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426 pixelPtr[0] &= mask; |
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427 |
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428 dataMask <<= 1; |
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429 pixelPtr += scanLineWords; |
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430 } |
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431 } |
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432 } |
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433 |
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434 void CDrawFourBppBitmapColor::WriteLine(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) |
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435 { |
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436 const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); |
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437 const TInt finishLong = (aX + aLength) & (~7); |
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438 const TInt startShift = (startLong - aX) * KBitsPerPixel; |
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439 const TInt startShiftExtra = 32 - startShift; |
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440 const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; |
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441 TUint32* base = ScanLine(aY); |
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442 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
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443 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
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444 |
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445 if (finishLong < startLong) |
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446 { |
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447 const TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); |
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448 |
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449 pixelPtrLimit[0] &= ~mask; |
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450 pixelPtrLimit[0] |= (aBuffer[0] << startShiftExtra) & mask; |
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451 pixelPtrLimit += iScanLineWords; |
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452 return; |
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453 } |
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454 |
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455 const TInt wordsToCopy = pixelPtrLimit - pixelPtr; |
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456 |
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457 if (startShift > 0) |
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458 { |
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459 pixelPtr[-1] = PasteInt(pixelPtr[-1],aBuffer[0] << startShiftExtra,startShift); |
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460 |
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461 CopyOffset(pixelPtr,aBuffer,wordsToCopy,startShift); |
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462 |
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463 aBuffer += wordsToCopy; |
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464 |
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465 if (finishLong < aX + aLength) |
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466 { |
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467 TUint32 first = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
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468 pixelPtrLimit[0] = PasteInt(first,pixelPtrLimit[0],finishShift); |
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469 } |
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470 } |
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471 else |
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472 { |
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473 Mem::Copy(pixelPtr,aBuffer,wordsToCopy * sizeof(TUint32)); |
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474 |
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475 aBuffer += wordsToCopy; |
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476 |
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477 if (finishLong < aX + aLength) |
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478 pixelPtrLimit[0] = PasteInt(aBuffer[0],pixelPtrLimit[0],finishShift); |
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479 } |
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480 } |
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481 |
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482 void CDrawFourBppBitmapColor::WriteLineXOR(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) |
|
483 { |
|
484 const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); |
|
485 const TInt finishLong = (aX + aLength) & (~7); |
|
486 const TInt startShift = (startLong - aX) * KBitsPerPixel; |
|
487 const TInt startShiftExtra = 32 - startShift; |
|
488 const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; |
|
489 TUint32* base = ScanLine(aY); |
|
490 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
491 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
492 |
|
493 if (finishLong < startLong) |
|
494 { |
|
495 pixelPtrLimit[0] ^= (aBuffer[0] << startShiftExtra) & (0xffffffff >> finishShift); |
|
496 pixelPtrLimit += iScanLineWords; |
|
497 return; |
|
498 } |
|
499 |
|
500 if (startShift > 0) |
|
501 { |
|
502 pixelPtr[-1] ^= PasteInt(0,aBuffer[0] << startShiftExtra,startShift); |
|
503 |
|
504 while (pixelPtr < pixelPtrLimit) |
|
505 { |
|
506 pixelPtr[0] ^= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
507 |
|
508 pixelPtr++; |
|
509 aBuffer++; |
|
510 } |
|
511 |
|
512 if (finishLong < aX + aLength) |
|
513 { |
|
514 TUint32 first = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
515 pixelPtrLimit[0] ^= PasteInt(first,0,finishShift); |
|
516 } |
|
517 } |
|
518 else |
|
519 { |
|
520 while (pixelPtr < pixelPtrLimit) |
|
521 *pixelPtr++ ^= *aBuffer++; |
|
522 |
|
523 if (finishLong < aX + aLength) |
|
524 pixelPtrLimit[0] ^= PasteInt(aBuffer[0],0,finishShift); |
|
525 } |
|
526 } |
|
527 |
|
528 void CDrawFourBppBitmapColor::WriteLineAND(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) |
|
529 { |
|
530 const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); |
|
531 const TInt finishLong = (aX + aLength) & (~7); |
|
532 const TInt startShift = (startLong - aX) * KBitsPerPixel; |
|
533 const TInt startShiftExtra = 32 - startShift; |
|
534 const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; |
|
535 TUint32* base = ScanLine(aY); |
|
536 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
537 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
538 |
|
539 if (finishLong < startLong) |
|
540 { |
|
541 const TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); |
|
542 |
|
543 pixelPtrLimit[0] &= (aBuffer[0] << startShiftExtra) | ~mask; |
|
544 pixelPtrLimit += iScanLineWords; |
|
545 return; |
|
546 } |
|
547 |
|
548 if (startShift > 0) |
|
549 { |
|
550 pixelPtr[-1] &= PasteInt(0xffffffff,aBuffer[0] << startShiftExtra,startShift); |
|
551 |
|
552 while (pixelPtr < pixelPtrLimit) |
|
553 { |
|
554 pixelPtr[0] &= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
555 |
|
556 pixelPtr++; |
|
557 aBuffer++; |
|
558 } |
|
559 |
|
560 if (finishLong < aX + aLength) |
|
561 { |
|
562 TUint32 first = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
563 pixelPtrLimit[0] &= PasteInt(first,0xffffffff,finishShift); |
|
564 } |
|
565 } |
|
566 else |
|
567 { |
|
568 while (pixelPtr < pixelPtrLimit) |
|
569 *pixelPtr++ &= *aBuffer++; |
|
570 |
|
571 if (finishLong < aX + aLength) |
|
572 pixelPtrLimit[0] &= PasteInt(aBuffer[0],0xffffffff,finishShift); |
|
573 } |
|
574 } |
|
575 |
|
576 void CDrawFourBppBitmapColor::WriteLineOR(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) |
|
577 { |
|
578 const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); |
|
579 const TInt finishLong = (aX + aLength) & (~7); |
|
580 const TInt startShift = (startLong - aX) * KBitsPerPixel; |
|
581 const TInt startShiftExtra = 32 - startShift; |
|
582 const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; |
|
583 TUint32* base = ScanLine(aY); |
|
584 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
585 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
586 |
|
587 if (finishLong < startLong) |
|
588 { |
|
589 pixelPtrLimit[0] |= (aBuffer[0] << startShiftExtra) & (0xffffffff >> finishShift); |
|
590 pixelPtrLimit += iScanLineWords; |
|
591 return; |
|
592 } |
|
593 |
|
594 if (startShift > 0) |
|
595 { |
|
596 pixelPtr[-1] |= PasteInt(0,aBuffer[0] << startShiftExtra,startShift); |
|
597 |
|
598 while (pixelPtr < pixelPtrLimit) |
|
599 { |
|
600 pixelPtr[0] |= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
601 |
|
602 pixelPtr++; |
|
603 aBuffer++; |
|
604 } |
|
605 |
|
606 if (finishLong < aX + aLength) |
|
607 { |
|
608 TUint32 first = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
609 pixelPtrLimit[0] |= PasteInt(first,0,finishShift); |
|
610 } |
|
611 } |
|
612 else |
|
613 { |
|
614 while (pixelPtr < pixelPtrLimit) |
|
615 *pixelPtr++ |= *aBuffer++; |
|
616 |
|
617 if (finishLong < aX + aLength) |
|
618 pixelPtrLimit[0] |= PasteInt(aBuffer[0],0,finishShift); |
|
619 } |
|
620 } |
|
621 |
|
622 /** |
|
623 MAlphaBlend::WriteRgbAlphaLine() implementation. |
|
624 @see MAlphaBlend::WriteRgbAlphaLine() |
|
625 */ |
|
626 void CDrawFourBppBitmapColor::WriteRgbAlphaLine(TInt aX, TInt aY, TInt aLength, |
|
627 const TUint8* aRgbBuffer, |
|
628 const TUint8* aMaskBuffer, |
|
629 MAlphaBlend::TShadowing aShadowing, |
|
630 CGraphicsContext::TDrawMode /*aDrawMode*/) |
|
631 { |
|
632 TUint8* pixelPtr = REINTERPRET_CAST(TUint8*,ScanLine(aY)) + (aX / 2); |
|
633 TRgb pixelColor; |
|
634 |
|
635 if (aX & 1) |
|
636 { |
|
637 TRgb srcColor(aRgbBuffer[2],aRgbBuffer[1],aRgbBuffer[0]); |
|
638 if(aShadowing == MAlphaBlend::EShdwBefore) |
|
639 { |
|
640 Shadow(srcColor); |
|
641 } |
|
642 pixelColor = ::AlphaBlend(srcColor,TRgb::Color16(pixelPtr[0] >> 4),aMaskBuffer[0]); |
|
643 if(aShadowing == MAlphaBlend::EShdwAfter) |
|
644 { |
|
645 Shadow(pixelColor); |
|
646 } |
|
647 MapColorToUserDisplayMode(pixelColor); |
|
648 pixelPtr[0] &= 0x0f; |
|
649 pixelPtr[0] |= TUint8(pixelColor.Color16() << 4); |
|
650 |
|
651 pixelPtr++; |
|
652 aRgbBuffer += 4; |
|
653 aMaskBuffer++; |
|
654 aLength--; |
|
655 } |
|
656 |
|
657 const TUint8* pixelPtrLimit = pixelPtr + (aLength / 2); |
|
658 TRgb pixelColor1, pixelColor2; |
|
659 |
|
660 while (pixelPtr < pixelPtrLimit) |
|
661 { |
|
662 TRgb srcColor1(aRgbBuffer[2],aRgbBuffer[1],aRgbBuffer[0]); |
|
663 if(aShadowing == MAlphaBlend::EShdwBefore) |
|
664 { |
|
665 Shadow(srcColor1); |
|
666 } |
|
667 pixelColor1 = ::AlphaBlend(srcColor1,TRgb::Color16(pixelPtr[0] & 0x0f),aMaskBuffer[0]); |
|
668 if(aShadowing == MAlphaBlend::EShdwAfter) |
|
669 { |
|
670 Shadow(pixelColor1); |
|
671 } |
|
672 MapColorToUserDisplayMode(pixelColor1); |
|
673 |
|
674 TRgb srcColor2(aRgbBuffer[6],aRgbBuffer[5],aRgbBuffer[4]); |
|
675 if(aShadowing == MAlphaBlend::EShdwBefore) |
|
676 { |
|
677 Shadow(srcColor2); |
|
678 } |
|
679 pixelColor2 = ::AlphaBlend(srcColor2,TRgb::Color16(pixelPtr[0] >> 4),aMaskBuffer[1]); |
|
680 if(aShadowing == MAlphaBlend::EShdwAfter) |
|
681 { |
|
682 Shadow(pixelColor2); |
|
683 } |
|
684 MapColorToUserDisplayMode(pixelColor2); |
|
685 |
|
686 pixelPtr[0] = TUint8(pixelColor1.Color16()); |
|
687 pixelPtr[0] |= TUint8(pixelColor2.Color16() << 4); |
|
688 |
|
689 pixelPtr++; |
|
690 aRgbBuffer += 8; |
|
691 aMaskBuffer += 2; |
|
692 } |
|
693 |
|
694 if (aLength & 1) |
|
695 { |
|
696 TRgb srcColor(aRgbBuffer[2],aRgbBuffer[1],aRgbBuffer[0]); |
|
697 if(aShadowing == MAlphaBlend::EShdwBefore) |
|
698 { |
|
699 Shadow(srcColor); |
|
700 } |
|
701 pixelColor = ::AlphaBlend(srcColor,TRgb::Color16(pixelPtr[0] & 0x0f),aMaskBuffer[0]); |
|
702 if(aShadowing == MAlphaBlend::EShdwAfter) |
|
703 { |
|
704 Shadow(pixelColor); |
|
705 } |
|
706 MapColorToUserDisplayMode(pixelColor); |
|
707 pixelPtr[0] &= 0xf0; |
|
708 pixelPtr[0] |= TUint8(pixelColor.Color16()); |
|
709 } |
|
710 } |
|
711 |
|
712 void CDrawFourBppBitmapColor::WriteRgbMulti(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) |
|
713 { |
|
714 const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); |
|
715 const TInt finishLong = (aX + aLength) & (~7); |
|
716 const TInt startShift = (startLong - aX) * KBitsPerPixel; |
|
717 const TInt startShiftExtra = 32 - startShift; |
|
718 const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; |
|
719 const TInt yLimit = aY + aHeight; |
|
720 TUint32 colorWord = ColorInt(aColor); |
|
721 TUint32* base = ScanLine(aY); |
|
722 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
723 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
724 |
|
725 if (finishLong < startLong) |
|
726 { |
|
727 TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); |
|
728 colorWord &= mask; |
|
729 mask = ~mask; |
|
730 |
|
731 for (; aY < yLimit; aY++) |
|
732 { |
|
733 pixelPtrLimit[0] &= mask; |
|
734 pixelPtrLimit[0] |= colorWord; |
|
735 pixelPtrLimit += iScanLineWords; |
|
736 } |
|
737 return; |
|
738 } |
|
739 |
|
740 for (; aY < yLimit; aY++) |
|
741 { |
|
742 if (startShift > 0) |
|
743 pixelPtr[-1] = PasteInt(pixelPtr[-1],colorWord,startShift); |
|
744 |
|
745 for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) |
|
746 tempPixelPtr[0] = colorWord; |
|
747 |
|
748 if (finishLong < aX + aLength) |
|
749 pixelPtrLimit[0] = PasteInt(colorWord,pixelPtrLimit[0],finishShift); |
|
750 |
|
751 pixelPtr += iScanLineWords; |
|
752 pixelPtrLimit += iScanLineWords; |
|
753 } |
|
754 } |
|
755 |
|
756 void CDrawFourBppBitmapColor::WriteRgbMultiXOR(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) |
|
757 { |
|
758 const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); |
|
759 const TInt finishLong = (aX + aLength) & (~7); |
|
760 const TInt startShift = (startLong - aX) * KBitsPerPixel; |
|
761 const TInt startShiftExtra = 32 - startShift; |
|
762 const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; |
|
763 const TInt yLimit = aY + aHeight; |
|
764 TUint32 colorWord = ColorInt(aColor); |
|
765 TUint32* base = ScanLine(aY); |
|
766 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
767 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
768 |
|
769 if (finishLong < startLong) |
|
770 { |
|
771 TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); |
|
772 colorWord &= mask; |
|
773 |
|
774 for (; aY < yLimit; aY++) |
|
775 { |
|
776 pixelPtrLimit[0] ^= colorWord; |
|
777 pixelPtrLimit += iScanLineWords; |
|
778 } |
|
779 return; |
|
780 } |
|
781 |
|
782 for (; aY < yLimit; aY++) |
|
783 { |
|
784 if (startShift > 0) |
|
785 pixelPtr[-1] ^= PasteInt(0,colorWord,startShift); |
|
786 |
|
787 for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) |
|
788 tempPixelPtr[0] ^= colorWord; |
|
789 |
|
790 if (finishLong < aX + aLength) |
|
791 pixelPtrLimit[0] ^= PasteInt(colorWord,0,finishShift); |
|
792 |
|
793 pixelPtr += iScanLineWords; |
|
794 pixelPtrLimit += iScanLineWords; |
|
795 } |
|
796 } |
|
797 |
|
798 void CDrawFourBppBitmapColor::WriteRgbMultiAND(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) |
|
799 { |
|
800 const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); |
|
801 const TInt finishLong = (aX + aLength) & (~7); |
|
802 const TInt startShift = (startLong - aX) * KBitsPerPixel; |
|
803 const TInt startShiftExtra = 32 - startShift; |
|
804 const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; |
|
805 const TInt yLimit = aY + aHeight; |
|
806 TUint32 colorWord = ColorInt(aColor); |
|
807 TUint32* base = ScanLine(aY); |
|
808 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
809 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
810 |
|
811 if (finishLong < startLong) |
|
812 { |
|
813 TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); |
|
814 colorWord &= mask; |
|
815 colorWord |= ~mask; |
|
816 |
|
817 for (; aY < yLimit; aY++) |
|
818 { |
|
819 pixelPtrLimit[0] &= colorWord; |
|
820 pixelPtrLimit += iScanLineWords; |
|
821 } |
|
822 return; |
|
823 } |
|
824 |
|
825 for (; aY < yLimit; aY++) |
|
826 { |
|
827 if (startShift > 0) |
|
828 pixelPtr[-1] &= PasteInt(0xffffffff,colorWord,startShift); |
|
829 |
|
830 for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) |
|
831 tempPixelPtr[0] &= colorWord; |
|
832 |
|
833 if (finishLong < aX + aLength) |
|
834 pixelPtrLimit[0] &= PasteInt(colorWord,0xffffffff,finishShift); |
|
835 |
|
836 pixelPtr += iScanLineWords; |
|
837 pixelPtrLimit += iScanLineWords; |
|
838 } |
|
839 } |
|
840 |
|
841 void CDrawFourBppBitmapColor::WriteRgbMultiOR(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) |
|
842 { |
|
843 const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); |
|
844 const TInt finishLong = (aX + aLength) & (~7); |
|
845 const TInt startShift = (startLong - aX) * KBitsPerPixel; |
|
846 const TInt startShiftExtra = 32 - startShift; |
|
847 const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; |
|
848 const TInt yLimit = aY + aHeight; |
|
849 TUint32 colorWord = ColorInt(aColor); |
|
850 TUint32* base = ScanLine(aY); |
|
851 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
852 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
853 |
|
854 if (finishLong < startLong) |
|
855 { |
|
856 TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); |
|
857 colorWord &= mask; |
|
858 |
|
859 for (; aY < yLimit; aY++) |
|
860 { |
|
861 pixelPtrLimit[0] |= colorWord; |
|
862 pixelPtrLimit += iScanLineWords; |
|
863 } |
|
864 return; |
|
865 } |
|
866 |
|
867 for (; aY < yLimit; aY++) |
|
868 { |
|
869 if (startShift > 0) |
|
870 pixelPtr[-1] |= PasteInt(0,colorWord,startShift); |
|
871 |
|
872 for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) |
|
873 tempPixelPtr[0] |= colorWord; |
|
874 |
|
875 if (finishLong < aX + aLength) |
|
876 pixelPtrLimit[0] |= PasteInt(colorWord,0,finishShift); |
|
877 |
|
878 pixelPtr += iScanLineWords; |
|
879 pixelPtrLimit += iScanLineWords; |
|
880 } |
|
881 } |
|
882 |
|
883 void CDrawFourBppBitmapColor::WriteRgbAlphaMulti(TInt aX,TInt aY,TInt aLength,TRgb aColor,const TUint8* aMaskBuffer) |
|
884 { |
|
885 DeOrientate(aX,aY); |
|
886 TUint8* pixelPtr = REINTERPRET_CAST(TUint8*,ScanLine(aY)) + (aX / 2); |
|
887 const TBool oddEndCoord = (aX + aLength) & 1; |
|
888 const TUint8* maskBufferPtrLimit = aMaskBuffer + aLength - (oddEndCoord ? 1 : 0); |
|
889 |
|
890 if (iShadowMode) |
|
891 Shadow(aColor); |
|
892 |
|
893 const TInt red = aColor.Red(); |
|
894 const TInt green = aColor.Green(); |
|
895 const TInt blue = aColor.Blue(); |
|
896 |
|
897 TRgb pixelColor; |
|
898 |
|
899 if (aX & 1) |
|
900 { |
|
901 pixelColor = AlphaBlend(red,green,blue,TRgb::Color16(pixelPtr[0] >> 4),aMaskBuffer[0]); |
|
902 pixelPtr[0] &= 0x0f; |
|
903 pixelPtr[0] |= TUint8(pixelColor.Color16() << 4); |
|
904 |
|
905 pixelPtr++; |
|
906 aMaskBuffer++; |
|
907 } |
|
908 |
|
909 TRgb lowerPixelColor, upperPixelColor; |
|
910 |
|
911 while (aMaskBuffer < maskBufferPtrLimit) |
|
912 { |
|
913 lowerPixelColor = AlphaBlend(red,green,blue,TRgb::Color16(pixelPtr[0] & 0x0f),aMaskBuffer[0]); |
|
914 upperPixelColor = AlphaBlend(red,green,blue,TRgb::Color16(pixelPtr[0] >> 4),aMaskBuffer[1]); |
|
915 pixelPtr[0] = TUint8(lowerPixelColor.Color16()); |
|
916 pixelPtr[0] |= TUint8(upperPixelColor.Color16() << 4); |
|
917 |
|
918 pixelPtr++; |
|
919 aMaskBuffer += 2; |
|
920 } |
|
921 |
|
922 if (oddEndCoord) |
|
923 { |
|
924 pixelColor = AlphaBlend(red,green,blue,TRgb::Color16(pixelPtr[0] & 0x0f),aMaskBuffer[0]); |
|
925 pixelPtr[0] &= 0xf0; |
|
926 pixelPtr[0] |= TUint8(pixelColor.Color16()); |
|
927 } |
|
928 } |
|
929 |
|
930 void CDrawFourBppBitmapColor::MapColorToUserDisplayMode(TRgb& aColor) |
|
931 { |
|
932 switch (iUserDispMode) |
|
933 { |
|
934 case EGray2: |
|
935 aColor = TRgb::_Gray2(aColor._Gray2()); |
|
936 break; |
|
937 case EGray4: |
|
938 case EGray16:// EGray16 can't be done - nearest is EGray4 |
|
939 case EGray256:// EGray256 can't be done - nearest is EGray4 |
|
940 aColor = TRgb::_Gray4(aColor._Gray4()); |
|
941 break; |
|
942 default: |
|
943 break; |
|
944 } |
|
945 } |
|
946 |
|
947 void CDrawFourBppBitmapColor::MapBufferToUserDisplayMode(TInt aLength,TUint32* aBuffer) |
|
948 { |
|
949 TUint8* bufferPtr = (TUint8*)aBuffer; |
|
950 const TUint8* bufferLimit = bufferPtr + ((aLength + 1) / 2); |
|
951 TRgb color1, color2; |
|
952 |
|
953 switch (iUserDispMode) |
|
954 { |
|
955 case EGray2: |
|
956 while (bufferPtr < bufferLimit) |
|
957 { |
|
958 color1 = TRgb::Color16(*bufferPtr & 0xf); |
|
959 color2 = TRgb::Color16(*bufferPtr >> 4); |
|
960 color1 = TRgb::_Gray2(color1._Gray2()); |
|
961 color2 = TRgb::_Gray2(color2._Gray2()); |
|
962 *bufferPtr++ = TUint8(color1.Color16() | (color2.Color16() << 4)); |
|
963 } |
|
964 break; |
|
965 case EGray4: |
|
966 case EGray16:// EGray256 can't be done - nearest is EGray4 |
|
967 case EGray256:// EGray256 can't be done - nearest is EGray4 |
|
968 while (bufferPtr < bufferLimit) |
|
969 { |
|
970 color1 = TRgb::Color16(*bufferPtr & 0xf); |
|
971 color2 = TRgb::Color16(*bufferPtr >> 4); |
|
972 color1 = TRgb::_Gray4(color1._Gray4()); |
|
973 color2 = TRgb::_Gray4(color2._Gray4()); |
|
974 *bufferPtr++ = TUint8(color1.Color16() | (color2.Color16() << 4)); |
|
975 } |
|
976 break; |
|
977 default: |
|
978 break; |
|
979 } |
|
980 } |
|
981 |
|
982 TInt CDrawFourBppBitmapColor::WriteRgbOutlineAndShadow(TInt aX, TInt aY, const TInt aLength, |
|
983 TUint32 aOutlinePenColor, TUint32 aShadowColor, |
|
984 TUint32 aFillColor, const TUint8* aDataBuffer) |
|
985 { |
|
986 //This is non-optimised since this screen mode is rarely used and is usually |
|
987 //fast enough without optimisation. |
|
988 DeOrientate(aX,aY); |
|
989 TUint8* pixelPtr = REINTERPRET_CAST(TUint8*,ScanLine(aY)) + (aX / 2); |
|
990 const TBool oddEndCoord = (aX + aLength) & 1; |
|
991 const TUint8* dataBufferPtrLimit = aDataBuffer + aLength - (oddEndCoord ? 1 : 0); |
|
992 |
|
993 TUint8 index = 0; |
|
994 TRgb finalColor; |
|
995 TRgb lowerPixelColor; |
|
996 TRgb upperPixelColor; |
|
997 |
|
998 TRgb outlinePenColor; |
|
999 outlinePenColor.SetInternal(aOutlinePenColor); |
|
1000 TRgb shadowColor; |
|
1001 shadowColor.SetInternal(aShadowColor); |
|
1002 TRgb fillColor; |
|
1003 fillColor.SetInternal(aFillColor); |
|
1004 |
|
1005 const TInt redOutlinePenColor = outlinePenColor.Red(); |
|
1006 const TInt redShadowColor = shadowColor.Red(); |
|
1007 const TInt redFillColor = fillColor.Red(); |
|
1008 |
|
1009 const TInt greenOutlinePenColor = outlinePenColor.Green(); |
|
1010 const TInt greenShadowColor = shadowColor.Green(); |
|
1011 const TInt greenFillColor = fillColor.Green(); |
|
1012 |
|
1013 const TInt blueOutlinePenColor = outlinePenColor.Blue(); |
|
1014 const TInt blueShadowColor = shadowColor.Blue(); |
|
1015 const TInt blueFillColor = fillColor.Blue(); |
|
1016 |
|
1017 if (aX & 1) |
|
1018 { |
|
1019 index = *aDataBuffer; |
|
1020 if (255 != FourColorBlendLookup[index][KBackgroundColorIndex]) |
|
1021 { |
|
1022 TRgb backgroundColor = TRgb::Color16(pixelPtr[0] >> 4); |
|
1023 finalColor = BlendFourColors(aOutlinePenColor, aShadowColor, aFillColor, |
|
1024 redOutlinePenColor, redShadowColor, redFillColor, |
|
1025 greenOutlinePenColor, greenShadowColor, greenFillColor, |
|
1026 blueOutlinePenColor, blueShadowColor, blueFillColor, |
|
1027 backgroundColor, index); |
|
1028 pixelPtr[0] &= 0x0f; |
|
1029 pixelPtr[0] |= TUint8(finalColor.Color16() << 4); |
|
1030 } |
|
1031 pixelPtr++; |
|
1032 aDataBuffer++; |
|
1033 } |
|
1034 |
|
1035 while (aDataBuffer < dataBufferPtrLimit) |
|
1036 { |
|
1037 index = aDataBuffer[0]; |
|
1038 TRgb upperPixelBackgroundColor = TRgb::Color16(pixelPtr[0] >> 4); |
|
1039 if (255 != FourColorBlendLookup[index][KBackgroundColorIndex]) |
|
1040 { |
|
1041 TRgb lowerPixelBackgroundColor = TRgb::Color16(pixelPtr[0] & 0x0f ); |
|
1042 lowerPixelColor = BlendFourColors(aOutlinePenColor, aShadowColor, aFillColor, |
|
1043 redOutlinePenColor, redShadowColor, redFillColor, |
|
1044 greenOutlinePenColor, greenShadowColor, greenFillColor, |
|
1045 blueOutlinePenColor, blueShadowColor, blueFillColor, |
|
1046 lowerPixelBackgroundColor, index); |
|
1047 pixelPtr[0] = TUint8(lowerPixelColor.Color16()); |
|
1048 } |
|
1049 |
|
1050 index = aDataBuffer[1]; |
|
1051 if (255 != FourColorBlendLookup[index][KBackgroundColorIndex]) |
|
1052 { |
|
1053 upperPixelColor = BlendFourColors(aOutlinePenColor, aShadowColor, aFillColor, |
|
1054 redOutlinePenColor, redShadowColor, redFillColor, |
|
1055 greenOutlinePenColor, greenShadowColor, greenFillColor, |
|
1056 blueOutlinePenColor, blueShadowColor, blueFillColor, |
|
1057 upperPixelBackgroundColor, index); |
|
1058 pixelPtr[0] |= TUint8(upperPixelColor.Color16() << 4); |
|
1059 } |
|
1060 pixelPtr++; |
|
1061 aDataBuffer += 2; |
|
1062 } |
|
1063 |
|
1064 if (oddEndCoord) |
|
1065 { |
|
1066 index = aDataBuffer[0]; |
|
1067 if(255 != FourColorBlendLookup[index][KBackgroundColorIndex]) |
|
1068 { |
|
1069 TRgb backgroundColor = TRgb::Color16(pixelPtr[0] & 0x0f ); |
|
1070 finalColor = BlendFourColors(aOutlinePenColor, aShadowColor, aFillColor, |
|
1071 redOutlinePenColor, redShadowColor, redFillColor, |
|
1072 greenOutlinePenColor, greenShadowColor, greenFillColor, |
|
1073 blueOutlinePenColor, blueShadowColor, blueFillColor, |
|
1074 backgroundColor, index); |
|
1075 pixelPtr[0] &= 0xf0; |
|
1076 pixelPtr[0] |= TUint8(finalColor.Color16()); |
|
1077 } |
|
1078 } |
|
1079 return KErrNone; |
|
1080 } |
|
1081 |
|
1082 TRgb CDrawFourBppBitmapColor::BlendFourColors(TUint32 aOutlinePenColor, TUint32 aShadowColor, TUint32 aFillColor, |
|
1083 TInt aRedOutlinePenColor, TInt aRedShadowColor,TInt aRedFillColor, |
|
1084 TInt aGreenOutlinePenColor, TInt aGreenShadowColor, TInt aGreenFillColor, |
|
1085 TInt aBlueOutlinePenColor, TInt aBlueShadowColor, TInt aBlueFillColor, |
|
1086 TRgb aBackgroundColor, TUint8 aIndex) const |
|
1087 { |
|
1088 TRgb finalColor; |
|
1089 if (255 == FourColorBlendLookup[aIndex][KFillColorIndex]) |
|
1090 { |
|
1091 //fill colour |
|
1092 finalColor.SetInternal(aFillColor); |
|
1093 } |
|
1094 else if (255 == FourColorBlendLookup[aIndex][KShadowColorIndex]) |
|
1095 { |
|
1096 //Shadow colour |
|
1097 finalColor.SetInternal(aShadowColor); |
|
1098 } |
|
1099 else if (255 == FourColorBlendLookup[aIndex][KOutlineColorIndex]) |
|
1100 { |
|
1101 //Outline colour |
|
1102 finalColor.SetInternal(aOutlinePenColor); |
|
1103 } |
|
1104 else |
|
1105 { |
|
1106 TInt blendedRedColor = (aRedOutlinePenColor * FourColorBlendLookup[aIndex][KOutlineColorIndex] + |
|
1107 aRedShadowColor * FourColorBlendLookup[aIndex][KShadowColorIndex] + |
|
1108 aRedFillColor * FourColorBlendLookup[aIndex][KFillColorIndex] + |
|
1109 aBackgroundColor.Red() * FourColorBlendLookup[aIndex][KBackgroundColorIndex]) >> 8; |
|
1110 |
|
1111 TInt blendedGreenColor = (aGreenOutlinePenColor * FourColorBlendLookup[aIndex][KOutlineColorIndex] + |
|
1112 aGreenShadowColor * FourColorBlendLookup[aIndex][KShadowColorIndex] + |
|
1113 aGreenFillColor * FourColorBlendLookup[aIndex][KFillColorIndex] + |
|
1114 aBackgroundColor.Green() * FourColorBlendLookup[aIndex][KBackgroundColorIndex]) >> 8; |
|
1115 |
|
1116 TInt blendedBlueColor = (aBlueOutlinePenColor * FourColorBlendLookup[aIndex][KOutlineColorIndex] + |
|
1117 aBlueShadowColor * FourColorBlendLookup[aIndex][KShadowColorIndex] + |
|
1118 aBlueFillColor * FourColorBlendLookup[aIndex][KFillColorIndex] + |
|
1119 aBackgroundColor.Blue() * FourColorBlendLookup[aIndex][KBackgroundColorIndex]) >> 8; |
|
1120 finalColor = TRgb(blendedRedColor, blendedGreenColor, blendedBlueColor); |
|
1121 } |
|
1122 return finalColor; |
|
1123 } |