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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 KPixelsPerByte = 8; |
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19 const TInt KPixelsPerWord = 32; |
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20 |
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21 //Initializes iSize, iDrawRect, iLongWidth, iScanlineWords data members. |
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22 //It should be called every time when iSize is going to be changed - from Construct(). |
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23 //@param aSize Physical screen size in pixels. |
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24 //@panic EScreenDriverPanicInvalidSize - Invalid aSize parameter. This might happen if the |
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25 //device is scaled and the scaling origin goes outside physical drawing rectangle. |
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26 void CDrawOneBppBitmap::SetSize(const TSize& aSize) |
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27 { |
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28 CDrawBitmap::SetSize(aSize); |
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29 __ASSERT_DEBUG(iSize == aSize, User::Invariant()); |
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30 iLongWidth = (iSize.iWidth + (KPixelsPerWord - 1)) & ~(KPixelsPerWord - 1); |
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31 iScanLineWords = iLongWidth / KPixelsPerWord; |
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32 } |
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33 |
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34 TInt CDrawOneBppBitmap::Construct(TSize aSize) |
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35 { |
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36 return Construct(aSize, ((aSize.iWidth + (KPixelsPerWord - 1)) & ~(KPixelsPerWord - 1)) / KPixelsPerByte); |
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37 } |
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38 |
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39 TInt CDrawOneBppBitmap::Construct(TSize aSize, TInt aStride) |
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40 { |
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41 iBits = NULL; |
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42 iDispMode = EGray2; |
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43 CDrawBitmap::SetSize(aSize); |
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44 __ASSERT_DEBUG(iSize == aSize, User::Invariant()); |
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45 if (aStride & 3) |
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46 return KErrArgument; |
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47 iLongWidth = aStride * KPixelsPerByte; |
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48 if (iLongWidth < aSize.iWidth) |
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49 return KErrArgument; |
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50 iScanLineWords = aStride >> 2; |
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51 TInt size = 1 + (Max(aSize.iWidth,aSize.iHeight) >> 3); |
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52 if(size < 0) |
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53 return KErrArgument; |
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54 iScanLineBuffer = (TUint32*)(User::Heap().Alloc(size)); |
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55 if (iScanLineBuffer == NULL) |
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56 return KErrNoMemory; |
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57 return KErrNone; |
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58 } |
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59 |
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60 void CDrawOneBppBitmap::Shadow(TRgb& aColor) |
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61 { |
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62 if (iShadowMode & EFade) |
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63 aColor = FadeRgb(TRgb::_Gray2(aColor._Gray2())); |
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64 |
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65 if (iShadowMode & EShadow) |
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66 aColor = KRgbBlack; |
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67 } |
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68 |
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69 void CDrawOneBppBitmap::InvertBuffer(TInt aLength,TUint32* aBuffer) |
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70 { |
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71 __ASSERT_DEBUG(aLength > 0,Panic(EScreenDriverPanicZeroLength)); |
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72 __ASSERT_DEBUG(aBuffer,Panic(EScreenDriverPanicNullPointer)); |
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73 |
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74 const TUint32* const limit = aBuffer + ((aLength + KPixelsPerWord - 1) / KPixelsPerWord); |
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75 |
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76 while (aBuffer < limit) |
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77 *aBuffer++ ^= 0xffffffff; |
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78 } |
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79 |
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80 /** Copies a number of pixels into a word-aligned buffer without format translation. |
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81 Note that the byte length to the target buffer is honoured, |
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82 but the end contents of the last byte are generally overwritten with extra pixel data (or garbage) |
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83 Note that I am assuming the compiler optimiser will convert all these divides and multiplies into shifts! |
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84 @param aX x coordinate to start copy from (need not be aligned at all) |
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85 @param aY y coordinate to copy line from |
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86 @param aLength number of pixels to copy |
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87 @param aBuffer target word-aligned buffer (but may or may not be word length) |
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88 **/ |
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89 void CDrawOneBppBitmap::ReadLine(TInt aX,TInt aY,TInt aLength,TAny* aBuffer) const |
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90 { |
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91 TUint32* pixelPtr = ScanLine(aY); |
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92 TInt startLongPix = aX & -KPixelsPerWord; |
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93 pixelPtr += startLongPix / KPixelsPerWord; |
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94 TUint32* bufferPtr = (TUint32*)aBuffer; |
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95 TInt wordsCnt = (aLength+KPixelsPerByte-1) / KPixelsPerWord; //how many words to write to target |
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96 TInt restPixels = aLength - wordsCnt * KPixelsPerWord; //how many pixels left to copy |
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97 TInt bytesCnt = (restPixels+KPixelsPerByte-1) / KPixelsPerByte ; //how many target bytes to copy |
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98 TInt shiftBits = aX - startLongPix; |
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99 restPixels=shiftBits+restPixels; //How many pixels are read from the second word by the final word copy |
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100 if (bytesCnt==0 && shiftBits && restPixels<=0) |
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101 { |
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102 // This correction is required because although a last whole word will be written to the target buffer, |
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103 // this special test indicates that the required significant data bits plus the shift |
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104 // add up to one word (or less) to be read. |
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105 // The copy words optimisation used to copy the main body of the line |
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106 // will read from the next location after the copy, |
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107 // but this may not always be accessable memory (on the last scanline) |
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108 // The correction is not required if the second word would need to be read anyway. |
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109 //eg we want to copy 7 nibbles with a 1 nibble shift (16 color), restpixels would be 0 |
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110 bytesCnt=4; |
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111 wordsCnt--; |
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112 } |
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113 //How many pixels are read from the second word in the final byte copy? |
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114 //If zero (or less) then the second word should not be read in the copy bytes phase |
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115 //really this should be an else of the if above, but this gives the same end condition. |
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116 //eg we want to copy 5 nibbles with a 2 nibble shift (16 color), restpixels would be -1. |
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117 restPixels-=KPixelsPerWord; |
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118 ReadLineCommon(pixelPtr,bufferPtr,wordsCnt,restPixels,bytesCnt,shiftBits); |
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119 } |
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120 |
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121 |
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122 TRgb CDrawOneBppBitmap::ReadRgbNormal(TInt aX,TInt aY) const |
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123 { |
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124 TUint32 colorWord = *(ScanLine(aY) + (aX / KPixelsPerWord)); |
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125 |
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126 if (colorWord & (1 << (aX & 0x1f))) |
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127 return KRgbWhite; |
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128 |
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129 return KRgbBlack; |
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130 } |
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131 |
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132 void CDrawOneBppBitmap::ShadowArea(const TRect& aRect) |
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133 { |
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134 __ASSERT_DEBUG(aRect.iTl.iX>=0 && aRect.iBr.iX<=iSize.iWidth,Panic(EScreenDriverPanicOutOfBounds)); |
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135 __ASSERT_DEBUG(aRect.iTl.iY>=0 && aRect.iBr.iY<=iSize.iHeight,Panic(EScreenDriverPanicOutOfBounds)); |
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136 |
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137 if (iShadowMode & EFade) |
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138 { |
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139 TInt fadedWhite = FadeRgb(KRgbWhite)._Gray2(); |
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140 TInt fadedBlack = FadeRgb(KRgbBlack)._Gray2(); |
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141 |
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142 if (fadedWhite) |
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143 { |
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144 if (fadedBlack) // Everything fades to white |
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145 WriteRgbMulti(aRect.iTl.iX,aRect.iTl.iY,aRect.Width(),aRect.Height(),KRgbWhite); |
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146 // else Nothing changes |
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147 } |
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148 else |
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149 { |
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150 if (fadedBlack) // Everything inverted |
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151 WriteRgbMultiXOR(aRect.iTl.iX,aRect.iTl.iY,aRect.Width(),aRect.Height(),KRgbWhite); |
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152 else // Everything fades to black |
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153 WriteRgbMulti(aRect.iTl.iX,aRect.iTl.iY,aRect.Width(),aRect.Height(),KRgbBlack); |
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154 } |
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155 } |
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156 |
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157 if (iShadowMode & EShadow) |
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158 { |
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159 const TInt x = aRect.iTl.iX; |
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160 TInt y = aRect.iTl.iY; |
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161 const TInt startLong = (x + KPixelsPerWord - 1) & (~0x1f); |
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162 const TInt finishLong = (aRect.iBr.iX) & (~0x1f); |
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163 const TInt startShift = startLong - x; |
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164 TUint32* base = ScanLine(y); |
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165 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
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166 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
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167 |
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168 if (finishLong < startLong) |
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169 { |
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170 TUint32 mask = (0xffffffff >> (startLong - aRect.iBr.iX)) & (0xffffffff << (x - finishLong)); |
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171 mask = ~mask; |
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172 |
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173 for (; y < aRect.iBr.iY; y++) |
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174 { |
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175 pixelPtrLimit[0] &= mask; |
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176 pixelPtrLimit += iScanLineWords; |
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177 } |
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178 |
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179 return; |
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180 } |
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181 |
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182 const TInt bytesToFill = (pixelPtrLimit - pixelPtr) * sizeof(TUint32); |
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183 const TInt finishShift = 32 - aRect.iBr.iX + finishLong; |
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184 |
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185 for (;y<aRect.iBr.iY;y++) |
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186 { |
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187 if (x < startLong) |
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188 pixelPtr[-1] = PasteInt(pixelPtr[-1],0,startShift); |
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189 |
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190 Mem::FillZ(pixelPtr,bytesToFill); |
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191 |
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192 if (finishLong < aRect.iBr.iX) |
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193 pixelPtrLimit[0] = PasteInt(0,pixelPtrLimit[0],finishShift); |
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194 |
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195 pixelPtr += iScanLineWords; |
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196 pixelPtrLimit += iScanLineWords; |
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197 } |
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198 } |
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199 } |
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200 |
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201 void CDrawOneBppBitmap::ShadowBuffer(TInt aLength,TUint32* aBuffer) |
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202 { |
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203 __ASSERT_DEBUG(aLength>0,Panic(EScreenDriverPanicZeroLength)); |
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204 __ASSERT_DEBUG(aBuffer,Panic(EScreenDriverPanicNullPointer)); |
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205 |
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206 const TInt byteLength = (aLength + 7) / 8; |
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207 |
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208 if (iShadowMode & EFade) |
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209 { |
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210 TInt fadedWhite = FadeRgb(KRgbWhite)._Gray2(); |
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211 TInt fadedBlack = FadeRgb(KRgbBlack)._Gray2(); |
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212 |
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213 if (fadedWhite) |
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214 { |
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215 if (fadedBlack) // Everything fades to white |
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216 Mem::Fill(aBuffer,byteLength,0xff); |
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217 // else Nothing changes |
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218 } |
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219 else |
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220 { |
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221 if (fadedBlack) // Everything inverted |
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222 { |
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223 TUint8* bufferPtr = REINTERPRET_CAST(TUint8*,aBuffer); |
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224 const TUint8* bufferPtrLimit = bufferPtr + byteLength; |
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225 |
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226 while (bufferPtr < bufferPtrLimit) |
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227 *bufferPtr ^= 0xff; |
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228 } |
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229 else // Everything fades to black |
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230 Mem::FillZ(aBuffer,byteLength); |
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231 } |
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232 } |
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233 |
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234 if (iShadowMode & EShadow) |
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235 Mem::FillZ(aBuffer,byteLength); |
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236 } |
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237 |
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238 void CDrawOneBppBitmap::WriteRgb(TInt aX,TInt aY,TRgb aColor) |
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239 { |
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240 TUint32* pixelPtr = ScanLine(aY) + (aX / KPixelsPerWord); |
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241 const TUint32 mask = 1 << (aX & 0x1f); |
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242 |
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243 if (aColor._Gray2()) |
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244 pixelPtr[0] |= mask; |
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245 else |
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246 pixelPtr[0] &= ~mask; |
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247 } |
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248 |
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249 void CDrawOneBppBitmap::WriteBinary(TInt aX,TInt aY,TUint32* aBuffer,TInt aLength,TInt aHeight,TRgb aColor) |
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250 { |
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251 const TBool white = (aColor._Gray2() == 1); |
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252 TUint32* pixelPtr = ScanLine(aY) + (aX / KPixelsPerWord); |
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253 const TUint32* pixelPtrLimit = pixelPtr + (aHeight * iScanLineWords); |
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254 |
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255 while (pixelPtr < pixelPtrLimit) |
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256 { |
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257 TUint32 dataMask = 1; |
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258 TUint32 mask = 1 << (aX & 0x1f); |
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259 TUint32* tempPixelPtr = pixelPtr; |
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260 |
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261 for (TInt count = 0; count < aLength; count++,dataMask <<= 1,mask <<= 1) |
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262 { |
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263 if (!mask) |
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264 { |
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265 mask = 1; |
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266 tempPixelPtr++; |
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267 } |
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268 |
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269 if (aBuffer[0] & dataMask) |
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270 { |
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271 if (white) |
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272 tempPixelPtr[0] |= mask; |
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273 else |
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274 tempPixelPtr[0] &= ~mask; |
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275 } |
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276 } |
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277 |
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278 aBuffer++; |
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279 pixelPtr += iScanLineWords; |
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280 } |
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281 } |
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282 |
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283 void CDrawOneBppBitmap::WriteBinaryOp(TInt aX,TInt aY,TUint32* aBuffer,TInt aLength,TInt aHeight,TRgb aColor,CGraphicsContext::TDrawMode aDrawMode) |
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284 { |
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285 const TBool white = (aColor._Gray2() == 1); |
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286 TUint32* pixelPtr = ScanLine(aY) + (aX / KPixelsPerWord); |
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287 const TUint32* pixelPtrLimit = pixelPtr + (aHeight * iScanLineWords); |
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288 TUint32 initialMask = 1 << (aX & 0x1f); |
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289 |
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290 if (white) |
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291 { |
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292 if (aDrawMode == CGraphicsContext::EDrawModeXOR || aDrawMode == CGraphicsContext::EDrawModeOR) |
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293 { |
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294 while (pixelPtr < pixelPtrLimit) |
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295 { |
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296 TUint32 dataMask = 1; |
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297 TUint32 mask = initialMask; |
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298 TUint32* tempPixelPtr = pixelPtr; |
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299 |
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300 for (TInt count = 0; count < aLength;count++,dataMask <<= 1,mask <<= 1) |
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301 { |
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302 if (!mask) |
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303 { |
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304 mask = 1; |
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305 tempPixelPtr++; |
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306 } |
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307 |
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308 if (aBuffer[0] & dataMask) |
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309 { |
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310 if (aDrawMode == CGraphicsContext::EDrawModeXOR) |
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311 tempPixelPtr[0] ^= mask; |
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312 else if (aDrawMode == CGraphicsContext::EDrawModeOR) |
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313 tempPixelPtr[0] |= mask; |
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314 } |
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315 } |
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316 |
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317 aBuffer++; |
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318 pixelPtr += iScanLineWords; |
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319 } |
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320 } |
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321 } |
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322 else |
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323 { |
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324 if (aDrawMode == CGraphicsContext::EDrawModeAND) |
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325 { |
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326 while (pixelPtr < pixelPtrLimit) |
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327 { |
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328 TUint32 dataMask = 1; |
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329 TUint32 mask = initialMask; |
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330 TUint32* tempPixelPtr = pixelPtr; |
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331 |
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332 for (TInt count = 0; count < aLength;count++,dataMask <<= 1,mask <<= 1) |
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333 { |
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334 if (!mask) |
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335 { |
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336 mask = 1; |
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337 tempPixelPtr++; |
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338 } |
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339 |
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340 if (*aBuffer & dataMask) |
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341 *tempPixelPtr &= ~mask; |
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342 } |
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343 |
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344 aBuffer++; |
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345 pixelPtr += iScanLineWords; |
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346 } |
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347 } |
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348 } |
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349 } |
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350 |
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351 void CDrawOneBppBitmap::WriteBinaryLineVertical(TInt aX,TInt aY,TUint32* aBuffer,TInt aHeight,TRgb aColor,TBool aUp) |
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352 { |
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353 const TBool white = (aColor._Gray2() == 1); |
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354 const TInt yLimit = aY + ((aUp) ? -aHeight : aHeight); |
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355 const TInt scanLineWords = (aUp) ? -iScanLineWords : iScanLineWords; |
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356 const TInt startWord = aX / KPixelsPerWord; |
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357 TUint32* pixelPtr = ScanLine(aY) + startWord; |
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358 TUint32* pixelPtrLimit = ScanLine(yLimit) + startWord; |
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359 TUint32 mask = 1 << (aX & 0x1f); |
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360 TUint32 dataMask = 1; |
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361 |
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362 if (white) |
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363 { |
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364 while (pixelPtr != pixelPtrLimit) |
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365 { |
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366 if (!dataMask) |
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367 { |
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368 dataMask = 1; |
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369 aBuffer++; |
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370 } |
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371 |
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372 if (aBuffer[0] & dataMask) |
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373 pixelPtr[0] |= mask; |
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374 |
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375 dataMask <<= 1; |
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376 pixelPtr += scanLineWords; |
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377 } |
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378 } |
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379 else |
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380 { |
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381 mask = ~mask; |
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382 while (pixelPtr != pixelPtrLimit) |
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383 { |
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384 if (!dataMask) |
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385 { |
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386 dataMask = 1; |
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387 aBuffer++; |
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388 } |
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389 |
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390 if (aBuffer[0] & dataMask) |
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391 pixelPtr[0] &= mask; |
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392 |
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393 dataMask <<= 1; |
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394 pixelPtr += scanLineWords; |
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395 } |
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396 } |
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397 } |
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398 |
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399 void CDrawOneBppBitmap::WriteLine(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) |
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400 { |
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401 const TInt startLong = (aX + KPixelsPerWord - 1) & (~0x1f); |
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402 const TInt finishLong = (aX + aLength) & (~0x1f); |
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403 const TInt startShift = startLong - aX; |
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404 const TInt startShiftExtra = 32 - startShift; |
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405 const TInt finishX = aX + aLength; |
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406 TUint32* base = ScanLine(aY); |
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407 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
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408 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
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409 |
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410 if (finishLong < startLong) |
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411 { |
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412 TUint32 mask = (0xffffffff << startShiftExtra) & (0xffffffff >> (startLong - finishX)); |
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413 pixelPtrLimit[0] &= ~mask; |
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414 pixelPtrLimit[0] |= (aBuffer[0] << startShiftExtra) & mask; |
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415 return; |
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416 } |
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417 |
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418 if (startShift > 0) |
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419 { |
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420 pixelPtr[-1] &= 0xffffffff >> startShift; |
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421 pixelPtr[-1] |= aBuffer[0] << startShiftExtra; |
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422 |
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423 while (pixelPtr < pixelPtrLimit) |
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424 { |
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425 pixelPtr[0] = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
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426 pixelPtr++; |
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427 aBuffer++; |
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428 } |
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429 |
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430 if (finishLong < finishX) |
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431 { |
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432 TUint32 value = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
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433 pixelPtrLimit[0] = PasteInt(value,pixelPtrLimit[0],32 - finishX + finishLong); |
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434 } |
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435 } |
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436 else |
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437 { |
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438 while (pixelPtr < pixelPtrLimit) |
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439 *pixelPtr++ = *aBuffer++; |
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440 |
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441 if (finishLong < finishX) |
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442 pixelPtrLimit[0] = PasteInt(aBuffer[0],pixelPtrLimit[0],32 - finishX + finishLong); |
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443 } |
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444 } |
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445 |
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446 void CDrawOneBppBitmap::WriteLineXOR(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) |
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447 { |
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448 const TInt startLong = (aX + KPixelsPerWord - 1) & (~0x1f); |
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449 const TInt finishLong = (aX + aLength) & (~0x1f); |
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450 const TInt startShift = startLong - aX; |
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451 const TInt startShiftExtra = 32 - startShift; |
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452 const TInt finishX = aX + aLength; |
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453 TUint32* base = ScanLine(aY); |
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454 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
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455 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
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456 |
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457 if (finishLong < startLong) |
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458 { |
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459 TUint32 mask = (0xffffffff << startShiftExtra) & (0xffffffff >> (startLong - finishX)); |
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460 pixelPtrLimit[0] ^= (aBuffer[0] << startShiftExtra) & mask; |
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461 return; |
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462 } |
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463 |
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464 if (startShift > 0) |
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465 { |
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466 pixelPtr[-1] ^= aBuffer[0] << startShiftExtra; |
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467 |
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468 while (pixelPtr < pixelPtrLimit) |
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469 { |
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470 pixelPtr[0] ^= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
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471 pixelPtr++; |
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472 aBuffer++; |
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473 } |
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474 |
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475 if (finishLong < finishX) |
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476 { |
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477 TUint32 value = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
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478 pixelPtrLimit[0] ^= PasteInt(value,0,32 - finishX + finishLong); |
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479 } |
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480 } |
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481 else |
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482 { |
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483 while (pixelPtr < pixelPtrLimit) |
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484 *pixelPtr++ ^= *aBuffer++; |
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485 |
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486 if (finishLong < finishX) |
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487 pixelPtrLimit[0] ^= PasteInt(aBuffer[0],0,32 - finishX + finishLong); |
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488 } |
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489 } |
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490 |
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491 void CDrawOneBppBitmap::WriteLineAND(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) |
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492 { |
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493 const TInt startLong = (aX + KPixelsPerWord - 1) & (~0x1f); |
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494 const TInt finishLong = (aX + aLength) & (~0x1f); |
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495 const TInt startShift = startLong - aX; |
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496 const TInt startShiftExtra = 32 - startShift; |
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497 const TInt finishX = aX + aLength; |
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498 TUint32* base = ScanLine(aY); |
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499 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
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500 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
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501 |
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502 if (finishLong < startLong) |
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503 { |
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504 TUint32 mask = (0xffffffff << startShiftExtra) & (0xffffffff >> (startLong - finishX)); |
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505 pixelPtrLimit[0] &= (aBuffer[0] << startShiftExtra) | ~mask; |
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506 return; |
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507 } |
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508 |
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509 if (startShift > 0) |
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510 { |
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511 pixelPtr[-1] &= (aBuffer[0] << startShiftExtra) | (0xffffffff >> startShift); |
|
512 |
|
513 while (pixelPtr < pixelPtrLimit) |
|
514 { |
|
515 pixelPtr[0] &= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
516 pixelPtr++; |
|
517 aBuffer++; |
|
518 } |
|
519 |
|
520 if (finishLong < finishX) |
|
521 { |
|
522 TUint32 value = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
523 pixelPtrLimit[0] &= PasteInt(value,0xffffffff,32 - finishX + finishLong); |
|
524 } |
|
525 } |
|
526 else |
|
527 { |
|
528 while (pixelPtr < pixelPtrLimit) |
|
529 *pixelPtr++ &= *aBuffer++; |
|
530 |
|
531 if (finishLong < finishX) |
|
532 pixelPtrLimit[0] &= PasteInt(aBuffer[0],0xffffffff,32 - finishX + finishLong); |
|
533 } |
|
534 } |
|
535 |
|
536 void CDrawOneBppBitmap::WriteLineOR(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) |
|
537 { |
|
538 const TInt startLong = (aX + KPixelsPerWord - 1) & (~0x1f); |
|
539 const TInt finishLong = (aX + aLength) & (~0x1f); |
|
540 const TInt startShift = startLong - aX; |
|
541 const TInt startShiftExtra = 32 - startShift; |
|
542 const TInt finishX = aX + aLength; |
|
543 TUint32* base = ScanLine(aY); |
|
544 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
545 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
546 |
|
547 if (finishLong < startLong) |
|
548 { |
|
549 TUint32 mask = (0xffffffff << startShiftExtra) & (0xffffffff >> (startLong - finishX)); |
|
550 pixelPtrLimit[0] |= (aBuffer[0] << startShiftExtra) & mask; |
|
551 return; |
|
552 } |
|
553 |
|
554 if (startShift > 0) |
|
555 { |
|
556 pixelPtr[-1] |= aBuffer[0] << startShiftExtra; |
|
557 |
|
558 while (pixelPtr < pixelPtrLimit) |
|
559 { |
|
560 pixelPtr[0] |= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
561 pixelPtr++; |
|
562 aBuffer++; |
|
563 } |
|
564 |
|
565 if (finishLong < finishX) |
|
566 { |
|
567 TUint32 value = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); |
|
568 pixelPtrLimit[0] |= PasteInt(value,0,32 - finishX + finishLong); |
|
569 } |
|
570 } |
|
571 else |
|
572 { |
|
573 while (pixelPtr < pixelPtrLimit) |
|
574 *pixelPtr++ |= *aBuffer++; |
|
575 |
|
576 if (finishLong < finishX) |
|
577 pixelPtrLimit[0] |= PasteInt(aBuffer[0],0,32 - finishX + finishLong); |
|
578 } |
|
579 } |
|
580 |
|
581 /** |
|
582 MAlphaBlend::WriteRgbAlphaLine() implementation. |
|
583 @see MAlphaBlend::WriteRgbAlphaLine() |
|
584 */ |
|
585 void CDrawOneBppBitmap::WriteRgbAlphaLine(TInt aX, TInt aY, TInt aLength, |
|
586 const TUint8* aRgbBuffer, |
|
587 const TUint8* aMaskBuffer, |
|
588 MAlphaBlend::TShadowing, |
|
589 CGraphicsContext::TDrawMode /*aDrawMode*/) |
|
590 { |
|
591 TUint32* pixelPtr = ScanLine(aY) + (aX / KPixelsPerWord); |
|
592 const TUint8* maskBufferPtrLimit = aMaskBuffer + aLength; |
|
593 TUint32 bitMask = 1 << (aX & 0x1f); |
|
594 |
|
595 while (aMaskBuffer < maskBufferPtrLimit) |
|
596 { |
|
597 if (*aMaskBuffer++ & 0x80) |
|
598 { |
|
599 if (((aRgbBuffer[2] << 1) + aRgbBuffer[1] + (aRgbBuffer[1] << 2) + aRgbBuffer[0]) > 1016) |
|
600 pixelPtr[0] |= bitMask; |
|
601 else |
|
602 pixelPtr[0] &= ~bitMask; |
|
603 } |
|
604 |
|
605 bitMask <<= 1; |
|
606 |
|
607 if (!bitMask) |
|
608 { |
|
609 bitMask = 1; |
|
610 pixelPtr++; |
|
611 } |
|
612 |
|
613 aRgbBuffer += 4; |
|
614 } |
|
615 } |
|
616 |
|
617 void CDrawOneBppBitmap::WriteRgbMulti(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) |
|
618 { |
|
619 const TUint32 colorWord = (aColor._Gray2() == 1) ? 0xffffffff : 0; |
|
620 const TInt yLimit = aY + aHeight; |
|
621 const TInt startLong = (aX + KPixelsPerWord - 1) & (~0x1f); |
|
622 const TInt finishLong = (aX + aLength) & (~0x1f); |
|
623 const TInt startShift = startLong - aX; |
|
624 const TInt finishShift = 32 - aX - aLength + finishLong; |
|
625 TUint32* base = ScanLine(aY); |
|
626 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
627 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
628 |
|
629 if (finishLong < startLong) |
|
630 { |
|
631 TUint32 mask = (0xffffffff << (32 - startShift)) & (0xffffffff >> (startShift - aLength)); |
|
632 const TUint32 maskedColorWord = colorWord & mask; |
|
633 mask = ~mask; |
|
634 |
|
635 for (; aY < yLimit; aY++) |
|
636 { |
|
637 pixelPtrLimit[0] &= mask; |
|
638 pixelPtrLimit[0] |= maskedColorWord; |
|
639 pixelPtrLimit += iScanLineWords; |
|
640 } |
|
641 return; |
|
642 } |
|
643 |
|
644 const TBool extra = (finishLong < aX + aLength); |
|
645 |
|
646 for (; aY < yLimit; aY++) |
|
647 { |
|
648 TUint32* bmpbitstmp = pixelPtr; |
|
649 |
|
650 if (startShift > 0) |
|
651 bmpbitstmp[-1] = PasteInt(bmpbitstmp[-1],colorWord,startShift); |
|
652 |
|
653 while (bmpbitstmp < pixelPtrLimit) |
|
654 *bmpbitstmp++ = colorWord; |
|
655 |
|
656 if (extra) |
|
657 pixelPtrLimit[0] = PasteInt(colorWord,pixelPtrLimit[0],finishShift); |
|
658 |
|
659 pixelPtr += iScanLineWords; |
|
660 pixelPtrLimit += iScanLineWords; |
|
661 } |
|
662 } |
|
663 |
|
664 void CDrawOneBppBitmap::WriteRgbMultiXOR(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) |
|
665 { |
|
666 const TUint32 colorWord = (aColor._Gray2() == 1) ? 0xffffffff : 0; |
|
667 const TInt yLimit = aY + aHeight; |
|
668 const TInt startLong = (aX + KPixelsPerWord - 1) & (~0x1f); |
|
669 const TInt finishLong = (aX + aLength) & (~0x1f); |
|
670 const TInt startShift = startLong - aX; |
|
671 const TInt finishShift = 32 - aX - aLength + finishLong; |
|
672 TUint32* base = ScanLine(aY); |
|
673 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
674 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
675 |
|
676 if (finishLong < startLong) |
|
677 { |
|
678 TUint32 mask = (0xffffffff << (32 - startShift)) & (0xffffffff >> (startShift - aLength)); |
|
679 const TUint32 maskedColorWord = colorWord & mask; |
|
680 |
|
681 for (; aY < yLimit; aY++) |
|
682 { |
|
683 pixelPtrLimit[0] ^= maskedColorWord; |
|
684 pixelPtrLimit += iScanLineWords; |
|
685 } |
|
686 return; |
|
687 } |
|
688 |
|
689 const TBool extra = (finishLong < aX + aLength); |
|
690 |
|
691 for (; aY < yLimit; aY++) |
|
692 { |
|
693 TUint32* bmpbitstmp = pixelPtr; |
|
694 |
|
695 if (startShift > 0) |
|
696 bmpbitstmp[-1] ^= PasteInt(0,colorWord,startShift); |
|
697 |
|
698 while (bmpbitstmp < pixelPtrLimit) |
|
699 *bmpbitstmp++ ^= colorWord; |
|
700 |
|
701 if (extra) |
|
702 pixelPtrLimit[0] ^= PasteInt(colorWord,0,finishShift); |
|
703 |
|
704 pixelPtr += iScanLineWords; |
|
705 pixelPtrLimit += iScanLineWords; |
|
706 } |
|
707 } |
|
708 |
|
709 void CDrawOneBppBitmap::WriteRgbMultiAND(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) |
|
710 { |
|
711 const TUint32 colorWord = (aColor._Gray2() == 1) ? 0xffffffff : 0; |
|
712 const TInt yLimit = aY + aHeight; |
|
713 const TInt startLong = (aX + KPixelsPerWord - 1) & (~0x1f); |
|
714 const TInt finishLong = (aX + aLength) & (~0x1f); |
|
715 const TInt startShift = startLong - aX; |
|
716 const TInt finishShift = 32 - aX - aLength + finishLong; |
|
717 TUint32* base = ScanLine(aY); |
|
718 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
719 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
720 |
|
721 if (finishLong < startLong) |
|
722 { |
|
723 TUint32 mask = (0xffffffff << (32 - startShift)) & (0xffffffff >> (startShift - aLength)); |
|
724 const TUint32 maskedColorWord = colorWord | ~mask; |
|
725 |
|
726 for (; aY < yLimit; aY++) |
|
727 { |
|
728 pixelPtrLimit[0] &= maskedColorWord; |
|
729 pixelPtrLimit += iScanLineWords; |
|
730 } |
|
731 return; |
|
732 } |
|
733 |
|
734 const TBool extra = (finishLong < aX + aLength); |
|
735 |
|
736 for (; aY < yLimit; aY++) |
|
737 { |
|
738 TUint32* bmpbitstmp = pixelPtr; |
|
739 |
|
740 if (startShift > 0) |
|
741 bmpbitstmp[-1] &= PasteInt(0xffffffff,colorWord,startShift); |
|
742 |
|
743 while (bmpbitstmp < pixelPtrLimit) |
|
744 *bmpbitstmp++ &= colorWord; |
|
745 |
|
746 if (extra) |
|
747 pixelPtrLimit[0] &= PasteInt(colorWord,0xffffffff,finishShift); |
|
748 |
|
749 pixelPtr += iScanLineWords; |
|
750 pixelPtrLimit += iScanLineWords; |
|
751 } |
|
752 } |
|
753 |
|
754 void CDrawOneBppBitmap::WriteRgbMultiOR(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) |
|
755 { |
|
756 const TUint32 colorWord = (aColor._Gray2() == 1) ? 0xffffffff : 0; |
|
757 const TInt yLimit = aY + aHeight; |
|
758 const TInt startLong = (aX + KPixelsPerWord - 1) & (~0x1f); |
|
759 const TInt finishLong = (aX + aLength) & (~0x1f); |
|
760 const TInt startShift = startLong - aX; |
|
761 const TInt finishShift = 32 - aX - aLength + finishLong; |
|
762 TUint32* base = ScanLine(aY); |
|
763 TUint32* pixelPtr = base + (startLong / KPixelsPerWord); |
|
764 TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); |
|
765 |
|
766 if (finishLong < startLong) |
|
767 { |
|
768 TUint32 mask = (0xffffffff << (32 - startShift)) & (0xffffffff >> (startShift - aLength)); |
|
769 const TUint32 maskedColorWord = colorWord & mask; |
|
770 |
|
771 for (; aY < yLimit; aY++) |
|
772 { |
|
773 pixelPtrLimit[0] |= maskedColorWord; |
|
774 pixelPtrLimit += iScanLineWords; |
|
775 } |
|
776 return; |
|
777 } |
|
778 |
|
779 const TBool extra = (finishLong < aX + aLength); |
|
780 |
|
781 for (; aY < yLimit; aY++) |
|
782 { |
|
783 TUint32* bmpbitstmp = pixelPtr; |
|
784 |
|
785 if (startShift > 0) |
|
786 bmpbitstmp[-1] |= PasteInt(bmpbitstmp[-1],colorWord,startShift); |
|
787 |
|
788 while (bmpbitstmp < pixelPtrLimit) |
|
789 *bmpbitstmp++ |= colorWord; |
|
790 |
|
791 if (extra) |
|
792 pixelPtrLimit[0] |= PasteInt(colorWord,pixelPtrLimit[0],finishShift); |
|
793 |
|
794 pixelPtr += iScanLineWords; |
|
795 pixelPtrLimit += iScanLineWords; |
|
796 } |
|
797 } |
|
798 |
|
799 void CDrawOneBppBitmap::WriteRgbAlphaMulti(TInt aX,TInt aY,TInt aLength,TRgb aColor,const TUint8* aMaskBuffer) |
|
800 { |
|
801 DeOrientate(aX,aY); |
|
802 TUint8* pixelPtr = REINTERPRET_CAST(TUint8*,ScanLine(aY)) + (aX / 8); |
|
803 TInt pixelMask = 1 << (aX & 7); |
|
804 const TUint8* maskBufferPtrLimit = aMaskBuffer + aLength; |
|
805 |
|
806 if (iShadowMode) |
|
807 Shadow(aColor); |
|
808 |
|
809 const TInt gray = aColor._Gray256(); |
|
810 TRgb pixelColor; |
|
811 |
|
812 while (aMaskBuffer < maskBufferPtrLimit) |
|
813 { |
|
814 const TInt pixelGray256Value = (pixelPtr[0] & pixelMask) ? 255 : 0; |
|
815 pixelColor = TRgb::_Gray256(((gray * aMaskBuffer[0]) + ((255 - aMaskBuffer[0]) * pixelGray256Value)) / 255); |
|
816 if (pixelColor._Gray2()) |
|
817 pixelPtr[0] |= pixelMask; |
|
818 else |
|
819 pixelPtr[0] &= ~pixelMask; |
|
820 |
|
821 pixelMask <<= 1; |
|
822 if (pixelMask > 128) |
|
823 { |
|
824 pixelPtr++; |
|
825 pixelMask = 1; |
|
826 } |
|
827 aMaskBuffer++; |
|
828 } |
|
829 } |
|
830 |
|
831 TInt CDrawOneBppBitmap::WriteRgbOutlineAndShadow(TInt aX, TInt aY, const TInt aLength, |
|
832 TUint32 aOutlinePenColor, TUint32 aShadowColor, |
|
833 TUint32 aFillColor, const TUint8* aDataBuffer) |
|
834 { |
|
835 //This is non-optimised since this screen mode is rarely used and is usually |
|
836 //fast enough without optimisation. |
|
837 DeOrientate(aX,aY); |
|
838 TUint8* pixelPtr = REINTERPRET_CAST(TUint8*,ScanLine(aY)) + (aX / 8); |
|
839 TInt pixelMask = 1 << (aX & 7); |
|
840 const TUint8* dataBufferPtrLimit = aDataBuffer + aLength; |
|
841 |
|
842 TInt blendedRedColor; |
|
843 TInt blendedGreenColor; |
|
844 TInt blendedBlueColor; |
|
845 TUint8 index = 0; |
|
846 TRgb finalColor; |
|
847 |
|
848 TRgb outlinePenColor; |
|
849 outlinePenColor.SetInternal(aOutlinePenColor); |
|
850 TRgb shadowColor; |
|
851 shadowColor.SetInternal(aShadowColor); |
|
852 TRgb fillColor; |
|
853 fillColor.SetInternal(aFillColor); |
|
854 |
|
855 const TInt redOutlinePenColor = outlinePenColor.Red(); |
|
856 const TInt redShadowColor = shadowColor.Red(); |
|
857 const TInt redFillColor = fillColor.Red(); |
|
858 |
|
859 const TInt greenOutlinePenColor = outlinePenColor.Green(); |
|
860 const TInt greenShadowColor = shadowColor.Green(); |
|
861 const TInt greenFillColor = fillColor.Green(); |
|
862 |
|
863 const TInt blueOutlinePenColor = outlinePenColor.Blue(); |
|
864 const TInt blueShadowColor = shadowColor.Blue(); |
|
865 const TInt blueFillColor = fillColor.Blue(); |
|
866 |
|
867 while (aDataBuffer < dataBufferPtrLimit) |
|
868 { |
|
869 index = *aDataBuffer++; |
|
870 if (255 == FourColorBlendLookup[index][KBackgroundColorIndex]) |
|
871 { |
|
872 //background colour |
|
873 //No drawing required so move on to next pixel. |
|
874 pixelMask <<= 1; |
|
875 if (pixelMask > 0x80) |
|
876 { |
|
877 pixelPtr++; |
|
878 pixelMask = 1; |
|
879 } |
|
880 continue; |
|
881 } |
|
882 else if (255 == FourColorBlendLookup[index][KFillColorIndex]) |
|
883 { |
|
884 //fill colour |
|
885 finalColor.SetInternal(aFillColor); |
|
886 } |
|
887 else if (255 == FourColorBlendLookup[index][KShadowColorIndex]) |
|
888 { |
|
889 //Shadow colour |
|
890 finalColor.SetInternal(aShadowColor); |
|
891 } |
|
892 else if (255 == FourColorBlendLookup[index][KOutlineColorIndex]) |
|
893 { |
|
894 //Outline colour |
|
895 finalColor.SetInternal(aOutlinePenColor); |
|
896 } |
|
897 else |
|
898 { |
|
899 TRgb backgroundColor = TRgb::_Gray2((pixelPtr[0] & pixelMask) ? 255 : 0); |
|
900 blendedRedColor = (redOutlinePenColor * FourColorBlendLookup[index][KOutlineColorIndex] + |
|
901 redShadowColor * FourColorBlendLookup[index][KShadowColorIndex] + |
|
902 redFillColor * FourColorBlendLookup[index][KFillColorIndex] + |
|
903 backgroundColor.Red() * FourColorBlendLookup[index][KBackgroundColorIndex]) >> 8; |
|
904 |
|
905 blendedGreenColor = (greenOutlinePenColor * FourColorBlendLookup[index][KOutlineColorIndex] + |
|
906 greenShadowColor * FourColorBlendLookup[index][KShadowColorIndex] + |
|
907 greenFillColor * FourColorBlendLookup[index][KFillColorIndex] + |
|
908 backgroundColor.Green() * FourColorBlendLookup[index][KBackgroundColorIndex]) >> 8; |
|
909 |
|
910 blendedBlueColor = (blueOutlinePenColor * FourColorBlendLookup[index][KOutlineColorIndex] + |
|
911 blueShadowColor * FourColorBlendLookup[index][KShadowColorIndex] + |
|
912 blueFillColor * FourColorBlendLookup[index][KFillColorIndex] + |
|
913 backgroundColor.Blue() * FourColorBlendLookup[index][KBackgroundColorIndex]) >> 8; |
|
914 |
|
915 finalColor = TRgb(blendedRedColor, blendedGreenColor, blendedBlueColor); |
|
916 } |
|
917 |
|
918 if (finalColor._Gray2()) |
|
919 { |
|
920 pixelPtr[0] |= pixelMask; |
|
921 } |
|
922 else |
|
923 { |
|
924 pixelPtr[0] &= ~pixelMask; |
|
925 } |
|
926 |
|
927 pixelMask <<= 1; |
|
928 |
|
929 if (pixelMask > 0x80) |
|
930 { |
|
931 pixelPtr++; |
|
932 pixelMask = 1; |
|
933 } |
|
934 } |
|
935 return KErrNone; |
|
936 } |