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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 244 | chris | 1 | if (mLockedSurfaceDesc.ddpfPixelFormat.dwRGBBitCount == 16) |
| 2 | { |
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| 3 | ushort* aDestPixelsRow = ((ushort*) mLockedSurfaceDesc.lpSurface) + (theY * mLockedSurfaceDesc.lPitch/2) + theX; |
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| 4 | uchar* aRLAlphaDataRow = aSrcRLAlphaData + (theSrcRect.mY * theImage->mWidth) + theSrcRect.mX; |
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| 5 | |||
| 6 | ulong aRMask = mLockedSurfaceDesc.ddpfPixelFormat.dwRBitMask; |
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| 7 | ulong aGMask = mLockedSurfaceDesc.ddpfPixelFormat.dwGBitMask; |
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| 8 | ulong aBMask = mLockedSurfaceDesc.ddpfPixelFormat.dwBBitMask; |
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| 9 | |||
| 10 | ulong aRRoundAdd = aRMask >> 1; |
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| 11 | ulong aGRoundAdd = aGMask >> 1; |
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| 12 | ulong aBRoundAdd = aBMask >> 1; |
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| 13 | |||
| 14 | if (theColor == Color::White) |
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| 15 | { |
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| 16 | #ifdef OPTIMIZE_SOFTWARE_DRAWING |
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| 17 | if (aGMask == 0x7E0) // 5-6-5 optimizations |
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| 18 | { |
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| 19 | for (int y = 0; y < theSrcRect.mHeight; y++) |
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| 20 | { |
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| 21 | ushort* aDestPixels = aDestPixelsRow; |
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| 22 | uchar* aRLAlphaData = aRLAlphaDataRow; |
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| 23 | |||
| 24 | aSrcPixels = aSrcPixelsRow; |
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| 25 | |||
| 26 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
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| 27 | { |
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| 28 | ulong src = PEEK_SRC_COLOR; |
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| 29 | uchar rl = *aRLAlphaData; |
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| 30 | |||
| 31 | if (rl > aSpanLeft) |
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| 32 | rl = aSpanLeft; |
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| 33 | |||
| 34 | int oma = 256 - (src >> 24); |
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| 35 | |||
| 36 | if (oma == 1) // Fully opaque |
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| 37 | { |
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| 38 | for (int i = 0; i < rl; i++) |
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| 39 | *aDestPixels _PLUSPLUS = NEXT_SRC_COLOR; |
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| 40 | } |
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| 41 | else |
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| 42 | if (oma == 256) // Fully transparent |
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| 43 | { |
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| 44 | aDestPixels _PLUSEQUALS rl; |
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| 45 | aSrcPixels += rl; |
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| 46 | } |
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| 47 | else // Partially transparent |
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| 48 | { |
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| 49 | oma >>= 3; |
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| 50 | aSrcPixels++; |
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| 51 | ulong dest = (((*aDestPixels | (*aDestPixels << 16)) & 0x7E0F81F) * oma >> 5) & 0x7E0F81F; |
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| 52 | *(aDestPixels _PLUSPLUS) = src + (dest | (dest >> 16)); |
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| 53 | |||
| 54 | for (int i = 1; i < rl; i++) |
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| 55 | { |
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| 56 | ulong src = NEXT_SRC_COLOR; |
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| 57 | int oma = (256 - (src >> 24)) >> 3; |
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| 58 | ulong dest = (((*aDestPixels | (*aDestPixels << 16)) & 0x7E0F81F) * oma >> 5) & 0x7E0F81F; |
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| 59 | *(aDestPixels _PLUSPLUS) = src + (dest | (dest >> 16)); |
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| 60 | } |
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| 61 | } |
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| 62 | |||
| 63 | aRLAlphaData += rl; |
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| 64 | aSpanLeft -= rl; |
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| 65 | } |
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| 66 | |||
| 67 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/2; |
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| 68 | aSrcPixelsRow += theImage->mWidth; |
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| 69 | aRLAlphaDataRow += theImage->mWidth; |
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| 70 | } |
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| 71 | } |
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| 72 | else if (aGMask == 0x3E0) // 5-5-5 optimizations |
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| 73 | { |
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| 74 | for (int y = 0; y < theSrcRect.mHeight; y++) |
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| 75 | { |
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| 76 | ushort* aDestPixels = aDestPixelsRow; |
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| 77 | uchar* aRLAlphaData = aRLAlphaDataRow; |
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| 78 | |||
| 79 | aSrcPixels = aSrcPixelsRow; |
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| 80 | |||
| 81 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
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| 82 | { |
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| 83 | ulong src = PEEK_SRC_COLOR; |
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| 84 | uchar rl = *aRLAlphaData; |
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| 85 | |||
| 86 | if (rl > aSpanLeft) |
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| 87 | rl = aSpanLeft; |
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| 88 | |||
| 89 | int oma = 256 - (src >> 24); |
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| 90 | |||
| 91 | if (oma == 1) // Fully opaque |
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| 92 | { |
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| 93 | for (int i = 0; i < rl; i++) |
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| 94 | *aDestPixels _PLUSPLUS = NEXT_SRC_COLOR; |
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| 95 | } |
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| 96 | else |
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| 97 | if (oma == 256) // Fully transparent |
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| 98 | { |
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| 99 | aDestPixels _PLUSEQUALS rl; |
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| 100 | aSrcPixels += rl; |
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| 101 | } |
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| 102 | else // Partially transparent |
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| 103 | { |
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| 104 | oma >>= 3; |
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| 105 | aSrcPixels++; |
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| 106 | ulong dest = (((*aDestPixels | (*aDestPixels << 16)) & 0x3E07C1F) * oma >> 5) & 0x3E07C1F; |
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| 107 | *(aDestPixels _PLUSPLUS) = src + (dest | (dest >> 16)); |
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| 108 | |||
| 109 | for (int i = 1; i < rl; i++) |
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| 110 | { |
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| 111 | ulong src = NEXT_SRC_COLOR; |
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| 112 | int oma = (256 - (src >> 24)) >> 3; |
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| 113 | ulong dest = (((*aDestPixels | (*aDestPixels << 16)) & 0x3E07C1F) * oma >> 5) & 0x3E07C1F; |
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| 114 | *(aDestPixels _PLUSPLUS) = src + (dest | (dest >> 16)); |
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| 115 | } |
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| 116 | } |
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| 117 | |||
| 118 | aRLAlphaData += rl; |
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| 119 | aSpanLeft -= rl; |
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| 120 | } |
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| 121 | |||
| 122 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/2; |
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| 123 | aSrcPixelsRow += theImage->mWidth; |
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| 124 | aRLAlphaDataRow += theImage->mWidth; |
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| 125 | } |
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| 126 | } |
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| 127 | else |
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| 128 | #endif |
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| 129 | { |
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| 130 | for (int y = 0; y < theSrcRect.mHeight; y++) |
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| 131 | { |
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| 132 | ushort* aDestPixels = aDestPixelsRow; |
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| 133 | uchar* aRLAlphaData = aRLAlphaDataRow; |
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| 134 | |||
| 135 | aSrcPixels = aSrcPixelsRow; |
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| 136 | |||
| 137 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
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| 138 | { |
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| 139 | ulong src = PEEK_SRC_COLOR; |
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| 140 | uchar rl = *aRLAlphaData; |
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| 141 | |||
| 142 | if (rl > aSpanLeft) |
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| 143 | rl = aSpanLeft; |
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| 144 | |||
| 145 | int oma = 256 - (src >> 24); |
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| 146 | |||
| 147 | if (oma == 1) // Fully opaque |
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| 148 | { |
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| 149 | for (int i = 0; i < rl; i++) |
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| 150 | *aDestPixels _PLUSPLUS = NEXT_SRC_COLOR; |
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| 151 | } |
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| 152 | else if (oma == 256) // Fully transparent |
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| 153 | { |
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| 154 | aDestPixels _PLUSEQUALS rl; |
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| 155 | aSrcPixels += rl; |
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| 156 | } |
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| 157 | else // Partially transparent |
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| 158 | { |
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| 159 | aSrcPixels++; |
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| 160 | ulong dest = *aDestPixels; |
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| 161 | *(aDestPixels _PLUSPLUS) = src + |
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| 162 | (((((dest & aRMask) * oma) ) >> 8) & aRMask) + |
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| 163 | (((((dest & aGMask) * oma) ) >> 8) & aGMask) + |
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| 164 | (((((dest & aBMask) * oma) ) >> 8) & aBMask); |
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| 165 | |||
| 166 | for (int i = 1; i < rl; i++) |
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| 167 | { |
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| 168 | ulong src = NEXT_SRC_COLOR; |
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| 169 | int oma = 256 - (src >> 24); |
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| 170 | |||
| 171 | ulong dest = *aDestPixels; |
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| 172 | *(aDestPixels _PLUSPLUS) = src + |
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| 173 | (((((dest & aRMask) * oma) ) >> 8) & aRMask) + |
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| 174 | (((((dest & aGMask) * oma) ) >> 8) & aGMask) + |
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| 175 | (((((dest & aBMask) * oma) ) >> 8) & aBMask); |
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| 176 | } |
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| 177 | } |
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| 178 | |||
| 179 | aRLAlphaData += rl; |
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| 180 | aSpanLeft -= rl; |
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| 181 | } |
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| 182 | |||
| 183 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/2; |
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| 184 | aSrcPixelsRow += theImage->mWidth; |
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| 185 | aRLAlphaDataRow += theImage->mWidth; |
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| 186 | } |
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| 187 | } |
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| 188 | } |
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| 189 | else |
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| 190 | { |
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| 191 | int ca = theColor.mAlpha; |
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| 192 | int cr = (theColor.mRed * ca) / 255; |
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| 193 | int cg = (theColor.mGreen * ca) / 255; |
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| 194 | int cb = (theColor.mBlue * ca) / 255; |
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| 195 | |||
| 196 | #ifdef OPTIMIZE_SOFTWARE_DRAWING |
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| 197 | bool performNormalBlit = true; |
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| 198 | if (cr == cg && cg == cb) |
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| 199 | { |
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| 200 | if (aGMask == 0x7E0) |
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| 201 | { |
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| 202 | performNormalBlit = false; |
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| 203 | cr >>= 3; |
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| 204 | |||
| 205 | for (int y = 0; y < theSrcRect.mHeight; y++) |
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| 206 | { |
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| 207 | ushort* aDestPixels = aDestPixelsRow; |
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| 208 | uchar* aRLAlphaData = aRLAlphaDataRow; |
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| 209 | |||
| 210 | aSrcPixels = aSrcPixelsRow; |
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| 211 | |||
| 212 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
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| 213 | { |
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| 214 | ulong src = PEEK_SRC_COLOR; |
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| 215 | uchar rl = *aRLAlphaData; |
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| 216 | |||
| 217 | if (rl > aSpanLeft) |
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| 218 | rl = aSpanLeft; |
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| 219 | |||
| 220 | int a = src >> 24; |
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| 221 | |||
| 222 | if ((a == 255) && (ca == 255)) // Fully opaque |
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| 223 | { |
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| 224 | for (int i = 0; i < rl; i++) |
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| 225 | { |
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| 226 | ulong src = NEXT_SRC_COLOR; |
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| 227 | ulong dest = (((( (src & 0xFFFF) | (src << 16)) & 0x7E0F81F) * cr) >> 5) & 0x7E0F81F; |
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| 228 | *(aDestPixels _PLUSPLUS) = dest | (dest >> 16); |
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| 229 | } |
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| 230 | } |
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| 231 | else if (a == 0) // Fully transparent |
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| 232 | { |
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| 233 | aDestPixels _PLUSEQUALS rl; |
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| 234 | aSrcPixels += rl; |
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| 235 | } |
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| 236 | else // Partially transparent |
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| 237 | { |
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| 238 | for (int i = 0; i < rl; i++) |
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| 239 | { |
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| 240 | ulong src = NEXT_SRC_COLOR; |
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| 241 | |||
| 242 | a = ((src >> 24) * ca) / 255; |
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| 243 | int oma = (256 - a) >> 3; |
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| 244 | |||
| 245 | ulong dest = (*aDestPixels | (*aDestPixels << 16)) & 0x7E0F81F; |
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| 246 | src &= 0xFFFF; |
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| 247 | src = ( (src & 0xFFFF) | (src << 16)) & 0x7E0F81F; |
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| 248 | dest = ((dest * oma + src * cr) >> 5) & 0x7E0F81F; |
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| 249 | *(aDestPixels _PLUSPLUS) = dest | (dest >> 16); |
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| 250 | } |
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| 251 | } |
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| 252 | |||
| 253 | aRLAlphaData += rl; |
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| 254 | aSpanLeft -= rl; |
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| 255 | } |
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| 256 | |||
| 257 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/2; |
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| 258 | aSrcPixelsRow += theImage->mWidth; |
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| 259 | aRLAlphaDataRow += theImage->mWidth; |
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| 260 | } |
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| 261 | } |
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| 262 | else if (aGMask == 0x3E0) |
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| 263 | { |
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| 264 | performNormalBlit = false; |
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| 265 | cr >>= 3; |
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| 266 | |||
| 267 | for (int y = 0; y < theSrcRect.mHeight; y++) |
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| 268 | { |
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| 269 | ushort* aDestPixels = aDestPixelsRow; |
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| 270 | uchar* aRLAlphaData = aRLAlphaDataRow; |
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| 271 | |||
| 272 | aSrcPixels = aSrcPixelsRow; |
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| 273 | |||
| 274 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
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| 275 | { |
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| 276 | ulong src = PEEK_SRC_COLOR; |
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| 277 | uchar rl = *aRLAlphaData; |
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| 278 | |||
| 279 | if (rl > aSpanLeft) |
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| 280 | rl = aSpanLeft; |
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| 281 | |||
| 282 | int a = src >> 24; |
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| 283 | |||
| 284 | if ((a == 255) && (ca == 255)) // Fully opaque |
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| 285 | { |
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| 286 | for (int i = 0; i < rl; i++) |
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| 287 | { |
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| 288 | ulong src = NEXT_SRC_COLOR; |
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| 289 | ulong dest = (((( (src & 0xFFFF) | (src << 16)) & 0x3E07C1F) * cr) >> 5) & 0x3E07C1F; |
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| 290 | *(aDestPixels _PLUSPLUS) = dest | (dest >> 16); |
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| 291 | } |
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| 292 | } |
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| 293 | else if (a == 0) // Fully transparent |
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| 294 | { |
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| 295 | aDestPixels _PLUSEQUALS rl; |
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| 296 | aSrcPixels += rl; |
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| 297 | } |
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| 298 | else // Partially transparent |
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| 299 | { |
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| 300 | for (int i = 0; i < rl; i++) |
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| 301 | { |
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| 302 | ulong src = NEXT_SRC_COLOR; |
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| 303 | |||
| 304 | a = ((src >> 24) * ca) / 255; |
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| 305 | int oma = (256 - a) >> 3; |
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| 306 | |||
| 307 | ulong dest = (*aDestPixels | (*aDestPixels << 16)) & 0x3E07C1F; |
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| 308 | src &= 0xFFFF; |
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| 309 | src = ( (src & 0xFFFF) | (src << 16)) & 0x3E07C1F; |
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| 310 | dest = ((dest * oma + src * cr) >> 5) & 0x3E07C1F; |
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| 311 | *(aDestPixels _PLUSPLUS) = (dest | (dest >> 16)); |
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| 312 | } |
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| 313 | } |
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| 314 | |||
| 315 | aRLAlphaData += rl; |
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| 316 | aSpanLeft -= rl; |
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| 317 | } |
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| 318 | |||
| 319 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/2; |
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| 320 | aSrcPixelsRow += theImage->mWidth; |
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| 321 | aRLAlphaDataRow += theImage->mWidth; |
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| 322 | } |
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| 323 | } |
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| 324 | } |
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| 325 | if (performNormalBlit) |
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| 326 | #endif |
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| 327 | { |
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| 328 | for (int y = 0; y < theSrcRect.mHeight; y++) |
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| 329 | { |
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| 330 | ushort* aDestPixels = aDestPixelsRow; |
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| 331 | uchar* aRLAlphaData = aRLAlphaDataRow; |
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| 332 | |||
| 333 | aSrcPixels = aSrcPixelsRow; |
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| 334 | |||
| 335 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
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| 336 | { |
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| 337 | ulong src = PEEK_SRC_COLOR; |
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| 338 | uchar rl = *aRLAlphaData; |
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| 339 | |||
| 340 | if (rl > aSpanLeft) |
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| 341 | rl = aSpanLeft; |
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| 342 | |||
| 343 | int a = src >> 24; |
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| 344 | |||
| 345 | if ((a == 255) && (ca == 255)) // Fully opaque |
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| 346 | { |
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| 347 | for (int i = 0; i < rl; i++) |
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| 348 | { |
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| 349 | ulong src = NEXT_SRC_COLOR; |
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| 350 | *(aDestPixels _PLUSPLUS) = |
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| 351 | (((((src & aRMask) * cr) ) >> 8) & aRMask) + |
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| 352 | (((((src & aGMask) * cg) ) >> 8) & aGMask) + |
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| 353 | (((((src & aBMask) * cb) ) >> 8) & aBMask); |
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| 354 | } |
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| 355 | } |
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| 356 | else if (a == 0) // Fully transparent |
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| 357 | { |
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| 358 | aDestPixels _PLUSEQUALS rl; |
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| 359 | aSrcPixels += rl; |
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| 360 | } |
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| 361 | else // Partially transparent |
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| 362 | { |
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| 363 | for (int i = 0; i < rl; i++) |
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| 364 | { |
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| 365 | ulong src = NEXT_SRC_COLOR; |
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| 366 | |||
| 367 | a = ((src >> 24) * ca) / 255; |
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| 368 | int oma = 256 - a; |
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| 369 | |||
| 370 | ulong dest = *aDestPixels; |
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| 371 | *(aDestPixels _PLUSPLUS) = |
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| 372 | (((((dest & aRMask) * oma) + ((src & aRMask) * cr) ) >> 8) & aRMask) + |
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| 373 | (((((dest & aGMask) * oma) + ((src & aGMask) * cg) ) >> 8) & aGMask) + |
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| 374 | (((((dest & aBMask) * oma) + ((src & aBMask) * cb) ) >> 8) & aBMask); |
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| 375 | } |
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| 376 | } |
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| 377 | |||
| 378 | aRLAlphaData += rl; |
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| 379 | aSpanLeft -= rl; |
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| 380 | } |
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| 381 | |||
| 382 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/2; |
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| 383 | aSrcPixelsRow += theImage->mWidth; |
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| 384 | aRLAlphaDataRow += theImage->mWidth; |
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| 385 | } |
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| 386 | } |
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| 387 | } |
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| 388 | } |
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| 389 | else if (mLockedSurfaceDesc.ddpfPixelFormat.dwRGBBitCount == 32) |
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| 390 | { |
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| 391 | ulong* aDestPixelsRow = ((ulong*) mLockedSurfaceDesc.lpSurface) + (theY * mLockedSurfaceDesc.lPitch/4) + theX; |
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| 392 | uchar* aRLAlphaDataRow = aSrcRLAlphaData + (theSrcRect.mY * theImage->mWidth) + theSrcRect.mX; |
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| 393 | |||
| 394 | ulong aRMask = mLockedSurfaceDesc.ddpfPixelFormat.dwRBitMask; |
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| 395 | ulong aGMask = mLockedSurfaceDesc.ddpfPixelFormat.dwGBitMask; |
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| 396 | ulong aBMask = mLockedSurfaceDesc.ddpfPixelFormat.dwBBitMask; |
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| 397 | |||
| 398 | ulong aRRoundAdd = aRMask >> 1; |
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| 399 | ulong aGRoundAdd = aGMask >> 1; |
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| 400 | ulong aBRoundAdd = aBMask >> 1; |
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| 401 | |||
| 402 | if (theColor == Color::White) |
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| 403 | { |
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| 404 | for (int y = 0; y < theSrcRect.mHeight; y++) |
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| 405 | { |
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| 406 | ulong* aDestPixels = aDestPixelsRow; |
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| 407 | uchar* aRLAlphaData = aRLAlphaDataRow; |
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| 408 | |||
| 409 | aSrcPixels = aSrcPixelsRow; |
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| 410 | |||
| 411 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
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| 412 | { |
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| 413 | ulong src = PEEK_SRC_COLOR; |
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| 414 | uchar rl = *aRLAlphaData; |
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| 415 | |||
| 416 | if (rl > aSpanLeft) |
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| 417 | rl = aSpanLeft; |
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| 418 | |||
| 419 | int oma = 256 - (src >> 24); |
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| 420 | |||
| 421 | if (oma == 1) // Fully opaque |
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| 422 | { |
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| 423 | for (int i = 0; i < rl; i++) |
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| 424 | *aDestPixels _PLUSPLUS = NEXT_SRC_COLOR; |
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| 425 | } |
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| 426 | else if (oma == 256) // Fully transparent |
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| 427 | { |
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| 428 | aDestPixels _PLUSEQUALS rl; |
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| 429 | aSrcPixels += rl; |
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| 430 | } |
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| 431 | else // Partially transparent |
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| 432 | { |
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| 433 | #ifdef OPTIMIZE_SOFTWARE_DRAWING |
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| 434 | aSrcPixels++; |
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| 435 | |||
| 436 | int oma = 256 - (src >> 24); |
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| 437 | ulong dest = *aDestPixels; |
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| 438 | |||
| 439 | *(aDestPixels _PLUSPLUS) = src + |
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| 440 | ((((dest & 0xFF00FF) * oma) >> 8) & 0xFF00FF) + |
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| 441 | ((((dest & 0x00FF00) * oma) >> 8) & 0x00FF00); |
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| 442 | |||
| 443 | for (int i = 1; i < rl; i++) |
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| 444 | { |
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| 445 | ulong src = NEXT_SRC_COLOR; |
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| 446 | int oma = 256 - (src >> 24); |
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| 447 | ulong dest = *aDestPixels; |
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| 448 | |||
| 449 | *(aDestPixels _PLUSPLUS) = src + |
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| 450 | ((((dest & 0xFF00FF) * oma) >> 8) & 0xFF00FF) + |
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| 451 | ((((dest & 0x00FF00) * oma) >> 8) & 0x00FF00); |
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| 452 | } |
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| 453 | #else |
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| 454 | aSrcPixels++; |
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| 455 | ulong dest = *aDestPixels; |
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| 456 | *(aDestPixels _PLUSPLUS) = src + |
||
| 457 | (((((dest & aRMask) * oma)) >> 8) & aRMask) + |
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| 458 | (((((dest & aGMask) * oma)) >> 8) & aGMask) + |
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| 459 | (((((dest & aBMask) * oma)) >> 8) & aBMask); |
||
| 460 | |||
| 461 | for (int i = 1; i < rl; i++) |
||
| 462 | { |
||
| 463 | ulong src = NEXT_SRC_COLOR; |
||
| 464 | int oma = 256 - (src >> 24); |
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| 465 | |||
| 466 | ulong dest = *aDestPixels; |
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| 467 | *(aDestPixels _PLUSPLUS) = src + |
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| 468 | (((((dest & aRMask) * oma)) >> 8) & aRMask) + |
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| 469 | (((((dest & aGMask) * oma)) >> 8) & aGMask) + |
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| 470 | (((((dest & aBMask) * oma)) >> 8) & aBMask); |
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| 471 | } |
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| 472 | #endif |
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| 473 | } |
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| 474 | |||
| 475 | aRLAlphaData += rl; |
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| 476 | aSpanLeft -= rl; |
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| 477 | } |
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| 478 | |||
| 479 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/4; |
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| 480 | aSrcPixelsRow += theImage->mWidth; |
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| 481 | aRLAlphaDataRow += theImage->mWidth; |
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| 482 | } |
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| 483 | } |
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| 484 | else |
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| 485 | { |
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| 486 | int ca = theColor.mAlpha; |
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| 487 | int cr = (theColor.mRed * ca) / 255; |
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| 488 | int cg = (theColor.mGreen * ca) / 255; |
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| 489 | int cb = (theColor.mBlue * ca) / 255; |
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| 490 | |||
| 491 | #ifdef OPTIMIZE_SOFTWARE_DRAWING |
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| 492 | bool performNormalBlit = true; |
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| 493 | if (cr == cg && cg == cb) |
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| 494 | { |
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| 495 | performNormalBlit = false; |
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| 496 | for (int y = 0; y < theSrcRect.mHeight; y++) |
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| 497 | { |
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| 498 | ulong* aDestPixels = aDestPixelsRow; |
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| 499 | uchar* aRLAlphaData = aRLAlphaDataRow; |
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| 500 | |||
| 501 | aSrcPixels = aSrcPixelsRow; |
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| 502 | |||
| 503 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
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| 504 | { |
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| 505 | ulong src = PEEK_SRC_COLOR; |
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| 506 | uchar rl = *aRLAlphaData; |
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| 507 | |||
| 508 | if (rl > aSpanLeft) |
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| 509 | rl = aSpanLeft; |
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| 510 | |||
| 511 | int a = src >> 24; |
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| 512 | |||
| 513 | if ((a == 255) && (ca == 255)) // Fully opaque |
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| 514 | { |
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| 515 | for (int i = 0; i < rl; i++) |
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| 516 | { |
||
| 517 | ulong src = NEXT_SRC_COLOR; |
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| 518 | *(aDestPixels _PLUSPLUS) = |
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| 519 | ((((src & 0xFF00FF) * cr) >> 8) & 0xFF00FF) + |
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| 520 | ((((src & 0x00FF00) * cr) >> 8) & 0x00FF00); |
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| 521 | } |
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| 522 | } |
||
| 523 | else if (a == 0) // Fully transparent |
||
| 524 | { |
||
| 525 | aDestPixels _PLUSEQUALS rl; |
||
| 526 | aSrcPixels += rl; |
||
| 527 | } |
||
| 528 | else // Partially transparent |
||
| 529 | { |
||
| 530 | for (int i = 0; i < rl; i++) |
||
| 531 | { |
||
| 532 | ulong src = NEXT_SRC_COLOR; |
||
| 533 | |||
| 534 | a = ((src >> 24) * ca) / 255; |
||
| 535 | int oma = 256 - a; |
||
| 536 | |||
| 537 | ulong dest = *aDestPixels; |
||
| 538 | *(aDestPixels _PLUSPLUS) = |
||
| 539 | ((((dest & 0xFF00FF) * oma + (src & 0xFF00FF) * cr) >> 8) & 0xFF00FF) + |
||
| 540 | ((((dest & 0x00FF00) * oma + (src & 0x00FF00) * cr) >> 8) & 0x00FF00); |
||
| 541 | } |
||
| 542 | } |
||
| 543 | |||
| 544 | aRLAlphaData += rl; |
||
| 545 | aSpanLeft -= rl; |
||
| 546 | } |
||
| 547 | |||
| 548 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/4; |
||
| 549 | aSrcPixelsRow += theImage->mWidth; |
||
| 550 | aRLAlphaDataRow += theImage->mWidth; |
||
| 551 | } |
||
| 552 | } |
||
| 553 | if (performNormalBlit) |
||
| 554 | #endif |
||
| 555 | { |
||
| 556 | for (int y = 0; y < theSrcRect.mHeight; y++) |
||
| 557 | { |
||
| 558 | ulong* aDestPixels = aDestPixelsRow; |
||
| 559 | uchar* aRLAlphaData = aRLAlphaDataRow; |
||
| 560 | |||
| 561 | aSrcPixels = aSrcPixelsRow; |
||
| 562 | |||
| 563 | for (int aSpanLeft = theSrcRect.mWidth; aSpanLeft > 0; ) |
||
| 564 | { |
||
| 565 | ulong src = PEEK_SRC_COLOR; |
||
| 566 | uchar rl = *aRLAlphaData; |
||
| 567 | |||
| 568 | if (rl > aSpanLeft) |
||
| 569 | rl = aSpanLeft; |
||
| 570 | |||
| 571 | int a = src >> 24; |
||
| 572 | |||
| 573 | if ((a == 255) && (ca == 255)) // Fully opaque |
||
| 574 | { |
||
| 575 | for (int i = 0; i < rl; i++) |
||
| 576 | { |
||
| 577 | ulong src = NEXT_SRC_COLOR; |
||
| 578 | *(aDestPixels _PLUSPLUS) = |
||
| 579 | (((((src & aRMask) * cr)) >> 8) & aRMask) + |
||
| 580 | (((((src & aGMask) * cg)) >> 8) & aGMask) + |
||
| 581 | (((((src & aBMask) * cb)) >> 8) & aBMask); |
||
| 582 | } |
||
| 583 | } |
||
| 584 | else if (a == 0) // Fully transparent |
||
| 585 | { |
||
| 586 | aDestPixels _PLUSEQUALS rl; |
||
| 587 | aSrcPixels += rl; |
||
| 588 | } |
||
| 589 | else // Partially transparent |
||
| 590 | { |
||
| 591 | for (int i = 0; i < rl; i++) |
||
| 592 | { |
||
| 593 | ulong src = NEXT_SRC_COLOR; |
||
| 594 | |||
| 595 | a = ((src >> 24) * ca) / 255; |
||
| 596 | int oma = 256 - a; |
||
| 597 | |||
| 598 | ulong dest = *aDestPixels; |
||
| 599 | *(aDestPixels _PLUSPLUS) = |
||
| 600 | (((((dest & aRMask) * oma) + ((src & aRMask) * cr)) >> 8) & aRMask) + |
||
| 601 | (((((dest & aGMask) * oma) + ((src & aGMask) * cg)) >> 8) & aGMask) + |
||
| 602 | (((((dest & aBMask) * oma) + ((src & aBMask) * cb)) >> 8) & aBMask); |
||
| 603 | } |
||
| 604 | } |
||
| 605 | |||
| 606 | aRLAlphaData += rl; |
||
| 607 | aSpanLeft -= rl; |
||
| 608 | } |
||
| 609 | |||
| 610 | aDestPixelsRow += mLockedSurfaceDesc.lPitch/4; |
||
| 611 | aSrcPixelsRow += theImage->mWidth; |
||
| 612 | aRLAlphaDataRow += theImage->mWidth; |
||
| 613 | } |
||
| 614 | } |
||
| 615 | } |
||
| 616 | } |