diff -r 000000000000 -r 5d03bc08d59c graphicsdeviceinterface/screendriver/sbit/BMDRAW4C.CPP --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graphicsdeviceinterface/screendriver/sbit/BMDRAW4C.CPP Tue Feb 02 01:47:50 2010 +0200 @@ -0,0 +1,1123 @@ +// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). +// All rights reserved. +// This component and the accompanying materials are made available +// under the terms of "Eclipse Public License v1.0" +// which accompanies this distribution, and is available +// at the URL "http://www.eclipse.org/legal/epl-v10.html". +// +// Initial Contributors: +// Nokia Corporation - initial contribution. +// +// Contributors: +// +// Description: +// + +#include "BMDRAW.H" + +const TInt color16ShadowTable[16] = { + 0, 0, 0, 0, 0, 2, 3, 4, + 11, 12, 13, 0, 0, 0, 1, 14 + }; + +const TInt KPixelsPerWord = 8; +const TInt KPixelsPerByte = 2; +const TInt KBitsPerPixel = 4; + +// CDrawFourBppBitmapColor + +//Initializes iSize, iDrawRect, iLongWidth, iScanlineWords data members. +//It should be called every time when iSize is going to be changed - from Construct(). +//@param aSize Physical screen size in pixels. +//@panic EScreenDriverPanicInvalidSize - Invalid aSize parameter. This might happen if the +//device is scaled and the scaling origin goes outside physical drawing rectangle. +void CDrawFourBppBitmapColor::SetSize(const TSize& aSize) + { + CDrawBitmap::SetSize(aSize); + __ASSERT_DEBUG(iSize == aSize, User::Invariant()); + iLongWidth = (iSize.iWidth + (KPixelsPerWord - 1)) & ~(KPixelsPerWord - 1); + iScanLineWords = iLongWidth / KPixelsPerWord; + } + +TInt CDrawFourBppBitmapColor::Construct(TSize aSize) + { + return Construct(aSize, ((aSize.iWidth + (KPixelsPerWord - 1)) & ~(KPixelsPerWord - 1)) / KPixelsPerByte); + } + +TInt CDrawFourBppBitmapColor::Construct(TSize aSize, TInt aStride) + { + iBits = NULL; + iDispMode = EColor16; + CDrawBitmap::SetSize(aSize); + __ASSERT_DEBUG(iSize == aSize, User::Invariant()); + if (aStride & 3) + return KErrArgument; + iLongWidth = aStride * KPixelsPerByte; + if (iLongWidth < aSize.iWidth) + return KErrArgument; + iScanLineWords = aStride >> 2; + TInt size = 1 + (Max(aSize.iWidth,aSize.iHeight) >> 1); + if(size < 0) + return KErrArgument; + iScanLineBuffer = (TUint32*)(User::Heap().Alloc(size)); + if (iScanLineBuffer == NULL) + return KErrNoMemory; + return KErrNone; + } + +void CDrawFourBppBitmapColor::Shadow(TRgb& aColor) + { + if (iShadowMode & EFade) + aColor = FadeRgb(TRgb::Color16(aColor.Color16())); + + if (iShadowMode & EShadow) + aColor = TRgb::Color16(color16ShadowTable[aColor.Color16()]); + } + +TUint32 CDrawFourBppBitmapColor::ShadowWord(TUint32 aWord) + { + TUint32 shadowWord = color16ShadowTable[aWord & 0xf]; + + shadowWord |= color16ShadowTable[(aWord >> 4) & 0xf] << 4; + shadowWord |= color16ShadowTable[(aWord >> 8) & 0xf] << 8; + shadowWord |= color16ShadowTable[(aWord >> 12) & 0xf] << 12; + shadowWord |= color16ShadowTable[(aWord >> 16) & 0xf] << 16; + shadowWord |= color16ShadowTable[(aWord >> 20) & 0xf] << 20; + shadowWord |= color16ShadowTable[(aWord >> 24) & 0xf] << 24; + shadowWord |= color16ShadowTable[(aWord >> 28) & 0xf] << 28; + + return shadowWord; + } + +TUint32 CDrawFourBppBitmapColor::FadeWord(TUint32 aWord) + { + TUint32 fadeWord = FadeRgb(TRgb::Color16(aWord & 0xf)).Color16(); + + fadeWord |= FadeRgb(TRgb::Color16((aWord >> 4) & 0xf)).Color16() << 4; + fadeWord |= FadeRgb(TRgb::Color16((aWord >> 8) & 0xf)).Color16() << 8; + fadeWord |= FadeRgb(TRgb::Color16((aWord >> 12) & 0xf)).Color16() << 12; + fadeWord |= FadeRgb(TRgb::Color16((aWord >> 16) & 0xf)).Color16() << 16; + fadeWord |= FadeRgb(TRgb::Color16((aWord >> 20) & 0xf)).Color16() << 20; + fadeWord |= FadeRgb(TRgb::Color16((aWord >> 24) & 0xf)).Color16() << 24; + fadeWord |= FadeRgb(TRgb::Color16((aWord >> 28) & 0xf)).Color16() << 28; + + return fadeWord; + } + +TUint32 CDrawFourBppBitmapColor::ColorInt(TRgb aColor) const + { + TUint32 colorWord = aColor.Color16(); + + colorWord |= colorWord << 4; + colorWord |= colorWord << 8; + colorWord |= colorWord << 16; + + return colorWord; + } + +void CDrawFourBppBitmapColor::InvertBuffer(TInt aLength,TUint32* aBuffer) + { + const TUint32* bufferLimit = aBuffer + ((aLength + KPixelsPerWord - 1) / KPixelsPerWord); + + while (aBuffer < bufferLimit) + *aBuffer++ ^= 0xffffffff; + } + +/** Copies a number of pixels into a word-aligned buffer without format translation. + Note that the byte length to the target buffer is honoured, + but the end contents of the last byte are generally overwritten with extra pixel data (or garbage) + Note that I am assuming the compiler optimiser will convert all these divides and multiplies into shifts! +@param aX x coordinate to start copy from (need not be aligned at all) +@param aY y coordinate to copy line from +@param aLength number of pixels to copy +@param aBuffer target word-aligned buffer (but may or may not be word length) + **/ +void CDrawFourBppBitmapColor::ReadLine(TInt aX,TInt aY,TInt aLength,TAny* aBuffer) const + { + TUint32* pixelPtr = ScanLine(aY); + TInt startLongPix = aX & -KPixelsPerWord; + pixelPtr += startLongPix / KPixelsPerWord; + TUint32* bufferPtr = (TUint32*)aBuffer; + TInt wordsCnt = (aLength+KPixelsPerByte-1) / KPixelsPerWord; //how many words to write to target + TInt restPixels = aLength - wordsCnt * KPixelsPerWord; //how many pixels left to copy + TInt bytesCnt = (restPixels+KPixelsPerByte-1) / KPixelsPerByte ; //how many target bytes to copy + TInt shiftBits = aX - startLongPix; + restPixels=shiftBits+restPixels; //How many pixels are read from the second word by the final word copy + if (bytesCnt==0 && shiftBits && restPixels<=0) + { + // This correction is required because although a last whole word will be written to the target buffer, + // this special test indicates that the required significant data bits plus the shift + // add up to one word (or less) to be read. + // The copy words optimisation used to copy the main body of the line + // will read from the next location after the copy, + // but this may not always be accessable memory (on the last scanline) + // The correction is not required if the second word would need to be read anyway. + //eg we want to copy 7 nibbles with a 1 nibble shift (16 color), restpixels would be 0 + bytesCnt=4; + wordsCnt--; + } + //How many pixels are read from the second word in the final byte copy? + //If zero (or less) then the second word should not be read in the copy bytes phase + //really this should be an else of the if above, but this gives the same end condition. + //eg we want to copy 5 nibbles with a 2 nibble shift (16 color), restpixels would be -1. + restPixels-=KPixelsPerWord; + ReadLineCommon(pixelPtr,bufferPtr,wordsCnt,restPixels,bytesCnt,shiftBits*KBitsPerPixel); + } + + +TRgb CDrawFourBppBitmapColor::ReadRgbNormal(TInt aX,TInt aY) const + { + TUint32 col = *(ScanLine(aY) + (aX / KPixelsPerWord)); + col >>= ((aX & 7) * KBitsPerPixel); + return TRgb::Color16(col & 0xf); + } + +void CDrawFourBppBitmapColor::ShadowArea(const TRect& aRect) + { + __ASSERT_DEBUG(aRect.iTl.iX>=0 && aRect.iBr.iX<=iSize.iWidth,Panic(EScreenDriverPanicOutOfBounds)); + __ASSERT_DEBUG(aRect.iTl.iY>=0 && aRect.iBr.iY<=iSize.iHeight,Panic(EScreenDriverPanicOutOfBounds)); + + const TInt startLong = (aRect.iTl.iX + KPixelsPerWord - 1) & ~7; + const TInt finishLong = aRect.iBr.iX & ~7; + const TInt startShift = (startLong - aRect.iTl.iX) * KBitsPerPixel; + const TInt finishShift = (KPixelsPerWord - aRect.iBr.iX + finishLong) * KBitsPerPixel; + TUint32* base = ScanLine(aRect.iTl.iY); + + if (iShadowMode & EFade) + { + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + const TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << (32 - startShift)); + const TUint32 inverseMask = ~mask; + + for (TInt y = aRect.iTl.iY; y < aRect.iBr.iY; y++) + { + const TUint32 faded = FadeWord(pixelPtrLimit[0]) & mask; + pixelPtrLimit[0] &= inverseMask; + pixelPtrLimit[0] |= faded; + pixelPtrLimit += iScanLineWords; + } + } + else + { + for (TInt y = aRect.iTl.iY; y < aRect.iBr.iY; y++) + { + if (aRect.iTl.iX < startLong) + pixelPtr[-1] = PasteInt(pixelPtr[-1],FadeWord(pixelPtr[-1]),startShift); + + for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) + tempPixelPtr[0] = FadeWord(tempPixelPtr[0]); + + if (finishLong < aRect.iBr.iX) + pixelPtrLimit[0] = PasteInt(FadeWord(pixelPtrLimit[0]),pixelPtrLimit[0],finishShift); + + pixelPtr += iScanLineWords; + pixelPtrLimit += iScanLineWords; + } + } + } + + if (iShadowMode & EShadow) + { + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + const TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << (32 - startShift)); + const TUint32 inverseMask = ~mask; + + for (TInt y = aRect.iTl.iY; y < aRect.iBr.iY; y++) + { + TUint32 shadowed = ShadowWord(pixelPtrLimit[0]) & mask; + pixelPtrLimit[0] &= inverseMask; + pixelPtrLimit[0] |= shadowed; + pixelPtrLimit += iScanLineWords; + } + } + else + { + for (TInt y = aRect.iTl.iY; y < aRect.iBr.iY; y++) + { + if (aRect.iTl.iX < startLong) + pixelPtr[-1] = PasteInt(pixelPtr[-1],ShadowWord(pixelPtr[-1]),startShift); + + for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) + tempPixelPtr[0] = ShadowWord(tempPixelPtr[0]); + + if (finishLong < aRect.iBr.iX) + pixelPtrLimit[0] = PasteInt(ShadowWord(pixelPtrLimit[0]),pixelPtrLimit[0],finishShift); + + pixelPtr += iScanLineWords; + pixelPtrLimit += iScanLineWords; + } + } + } + } + +void CDrawFourBppBitmapColor::ShadowBuffer(TInt aLength,TUint32* aBuffer) + { + __ASSERT_DEBUG(aBuffer != NULL,Panic(EScreenDriverPanicInvalidParameter)); + + const TUint32* bufferLimit = aBuffer + ((aLength + KPixelsPerWord - 1) / KPixelsPerWord); + + if (iShadowMode & EFade) + { + for (TUint32* buffer = aBuffer; buffer < bufferLimit; buffer++) + buffer[0] = FadeWord(buffer[0]); + } + + if (iShadowMode & EShadow) + { + for (TUint32* buffer = aBuffer; buffer < bufferLimit; buffer++) + buffer[0] = ShadowWord(buffer[0]); + } + } + +void CDrawFourBppBitmapColor::WriteRgb(TInt aX,TInt aY,TRgb aColor) + { + TUint32* pixelPtr = ScanLine(aY) + (aX / KPixelsPerWord); + const TInt shift = (aX & 7) * KBitsPerPixel; + pixelPtr[0] &= ~(0xf << shift); + pixelPtr[0] |= aColor.Color16() << shift; + } + +void CDrawFourBppBitmapColor::WriteBinary(TInt aX,TInt aY,TUint32* aData,TInt aLength,TInt aHeight,TRgb aColor) + { + const TInt xLimit = aX + aLength; + const TInt yLimit = aY + aHeight; + const TUint8 color16 = TUint8(aColor.Color16()); + + for (; aY < yLimit; aY++,aData++) + { + TUint32 dataMask = 1; + TUint8* pixelPtr = (TUint8*)ScanLine(aY); + pixelPtr += aX / 2; + + if (color16) + { + for (TInt x = aX; x < xLimit; x++,dataMask <<= 1) + { + if (aData[0] & dataMask) + { + if (x & 1) + pixelPtr[0] = TUint8((color16 << 4) | (pixelPtr[0] & 0x0f)); + else + pixelPtr[0] = TUint8((pixelPtr[0] & 0xf0) | color16); + } + + if (x & 1) + pixelPtr++; + } + } + else + { + TUint8 bytemask = TUint8((aX & 1) ? 0x0f : 0xf0); + + for (TInt x = aX; x < xLimit; x++,dataMask <<= 1,bytemask = (TUint8)~bytemask) + { + if (aData[0] & dataMask) + pixelPtr[0] &= bytemask; + + if (x & 1) + pixelPtr++; + } + } + } + } + +void CDrawFourBppBitmapColor::WriteBinaryOp(TInt aX,TInt aY,TUint32* aData,TInt aLength,TInt aHeight,TRgb aColor,CGraphicsContext::TDrawMode aDrawMode) + { + const TInt xLimit = aX + aLength; + const TInt yLimit = aY + aHeight; + const TInt color16 = aColor.Color16(); + + for (; aY < yLimit; aY++) + { + TUint32 dataMask = 1; + TUint8* pixelPtr = ((TUint8*)ScanLine(aY)) + (aX / 2); + TUint8 bytemask = TUint8((aX & 1) ? 0x0f : 0xf0); + + if (color16) + { + for (TInt x = aX; x < xLimit; x++,dataMask <<= 1,bytemask = (TUint8)~bytemask) + { + if (aData[0] & dataMask) + { + TUint8 pixelColorIndex = TUint8((x & 1) ? color16 << 4 : color16); + if (aDrawMode == CGraphicsContext::EDrawModeXOR) + pixelPtr[0] = (TUint8)(pixelColorIndex ^ pixelPtr[0]); + else if (aDrawMode == CGraphicsContext::EDrawModeAND) + pixelPtr[0] = (TUint8)((pixelColorIndex | bytemask) & pixelPtr[0]); + else if (aDrawMode == CGraphicsContext::EDrawModeOR) + pixelPtr[0] = (TUint8)(pixelColorIndex | pixelPtr[0]); + } + + if (x & 1) + pixelPtr++; + } + } + else + { + if (aDrawMode == CGraphicsContext::EDrawModeAND) + { + for (TInt x = aX; x < xLimit; x++,dataMask <<= 1,bytemask = (TUint8)~bytemask) + { + if (aData[0] & dataMask) + pixelPtr[0] &= bytemask; + + if (x & 1) + pixelPtr++; + } + } + } + + aData++; + } + } + +void CDrawFourBppBitmapColor::WriteBinaryLineVertical(TInt aX,TInt aY,TUint32* aData,TInt aLength,TRgb aColor,TBool aUp) + { + const TInt yLimit = aY + (aUp ? -aLength : aLength); + TUint32 color16 = aColor.Color16(); + const TInt scanLineWords = aUp ? -iScanLineWords : iScanLineWords; + const TInt startWord = aX / KPixelsPerWord; + const TInt startShift = (aX & 7) * KBitsPerPixel; + TUint32* pixelPtr = ScanLine(aY) + startWord; + const TUint32* pixelPtrLimit = ScanLine(yLimit) + startWord; + const TUint32 mask = ~(0xf << startShift); + TUint32 dataMask = 1; + + if (color16) + { + color16 <<= startShift; + while (pixelPtr != pixelPtrLimit) + { + if (!dataMask) + { + dataMask = 1; + aData++; + } + + if (aData[0] & dataMask) + { + pixelPtr[0] &= mask; + pixelPtr[0] |= color16; + } + + dataMask <<= 1; + pixelPtr += scanLineWords; + } + } + else + { + while (pixelPtr != pixelPtrLimit) + { + if (!dataMask) + { + dataMask = 1; + aData++; + } + + if (aData[0] & dataMask) + pixelPtr[0] &= mask; + + dataMask <<= 1; + pixelPtr += scanLineWords; + } + } + } + +void CDrawFourBppBitmapColor::WriteLine(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) + { + const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); + const TInt finishLong = (aX + aLength) & (~7); + const TInt startShift = (startLong - aX) * KBitsPerPixel; + const TInt startShiftExtra = 32 - startShift; + const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; + TUint32* base = ScanLine(aY); + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + const TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); + + pixelPtrLimit[0] &= ~mask; + pixelPtrLimit[0] |= (aBuffer[0] << startShiftExtra) & mask; + pixelPtrLimit += iScanLineWords; + return; + } + + const TInt wordsToCopy = pixelPtrLimit - pixelPtr; + + if (startShift > 0) + { + pixelPtr[-1] = PasteInt(pixelPtr[-1],aBuffer[0] << startShiftExtra,startShift); + + CopyOffset(pixelPtr,aBuffer,wordsToCopy,startShift); + + aBuffer += wordsToCopy; + + if (finishLong < aX + aLength) + { + TUint32 first = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); + pixelPtrLimit[0] = PasteInt(first,pixelPtrLimit[0],finishShift); + } + } + else + { + Mem::Copy(pixelPtr,aBuffer,wordsToCopy * sizeof(TUint32)); + + aBuffer += wordsToCopy; + + if (finishLong < aX + aLength) + pixelPtrLimit[0] = PasteInt(aBuffer[0],pixelPtrLimit[0],finishShift); + } + } + +void CDrawFourBppBitmapColor::WriteLineXOR(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) + { + const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); + const TInt finishLong = (aX + aLength) & (~7); + const TInt startShift = (startLong - aX) * KBitsPerPixel; + const TInt startShiftExtra = 32 - startShift; + const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; + TUint32* base = ScanLine(aY); + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + pixelPtrLimit[0] ^= (aBuffer[0] << startShiftExtra) & (0xffffffff >> finishShift); + pixelPtrLimit += iScanLineWords; + return; + } + + if (startShift > 0) + { + pixelPtr[-1] ^= PasteInt(0,aBuffer[0] << startShiftExtra,startShift); + + while (pixelPtr < pixelPtrLimit) + { + pixelPtr[0] ^= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); + + pixelPtr++; + aBuffer++; + } + + if (finishLong < aX + aLength) + { + TUint32 first = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); + pixelPtrLimit[0] ^= PasteInt(first,0,finishShift); + } + } + else + { + while (pixelPtr < pixelPtrLimit) + *pixelPtr++ ^= *aBuffer++; + + if (finishLong < aX + aLength) + pixelPtrLimit[0] ^= PasteInt(aBuffer[0],0,finishShift); + } + } + +void CDrawFourBppBitmapColor::WriteLineAND(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) + { + const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); + const TInt finishLong = (aX + aLength) & (~7); + const TInt startShift = (startLong - aX) * KBitsPerPixel; + const TInt startShiftExtra = 32 - startShift; + const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; + TUint32* base = ScanLine(aY); + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + const TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); + + pixelPtrLimit[0] &= (aBuffer[0] << startShiftExtra) | ~mask; + pixelPtrLimit += iScanLineWords; + return; + } + + if (startShift > 0) + { + pixelPtr[-1] &= PasteInt(0xffffffff,aBuffer[0] << startShiftExtra,startShift); + + while (pixelPtr < pixelPtrLimit) + { + pixelPtr[0] &= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); + + pixelPtr++; + aBuffer++; + } + + if (finishLong < aX + aLength) + { + TUint32 first = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); + pixelPtrLimit[0] &= PasteInt(first,0xffffffff,finishShift); + } + } + else + { + while (pixelPtr < pixelPtrLimit) + *pixelPtr++ &= *aBuffer++; + + if (finishLong < aX + aLength) + pixelPtrLimit[0] &= PasteInt(aBuffer[0],0xffffffff,finishShift); + } + } + +void CDrawFourBppBitmapColor::WriteLineOR(TInt aX,TInt aY,TInt aLength,TUint32* aBuffer) + { + const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); + const TInt finishLong = (aX + aLength) & (~7); + const TInt startShift = (startLong - aX) * KBitsPerPixel; + const TInt startShiftExtra = 32 - startShift; + const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; + TUint32* base = ScanLine(aY); + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + pixelPtrLimit[0] |= (aBuffer[0] << startShiftExtra) & (0xffffffff >> finishShift); + pixelPtrLimit += iScanLineWords; + return; + } + + if (startShift > 0) + { + pixelPtr[-1] |= PasteInt(0,aBuffer[0] << startShiftExtra,startShift); + + while (pixelPtr < pixelPtrLimit) + { + pixelPtr[0] |= (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); + + pixelPtr++; + aBuffer++; + } + + if (finishLong < aX + aLength) + { + TUint32 first = (aBuffer[0] >> startShift) | (aBuffer[1] << startShiftExtra); + pixelPtrLimit[0] |= PasteInt(first,0,finishShift); + } + } + else + { + while (pixelPtr < pixelPtrLimit) + *pixelPtr++ |= *aBuffer++; + + if (finishLong < aX + aLength) + pixelPtrLimit[0] |= PasteInt(aBuffer[0],0,finishShift); + } + } + +/** +MAlphaBlend::WriteRgbAlphaLine() implementation. +@see MAlphaBlend::WriteRgbAlphaLine() +*/ +void CDrawFourBppBitmapColor::WriteRgbAlphaLine(TInt aX, TInt aY, TInt aLength, + const TUint8* aRgbBuffer, + const TUint8* aMaskBuffer, + MAlphaBlend::TShadowing aShadowing, + CGraphicsContext::TDrawMode /*aDrawMode*/) + { + TUint8* pixelPtr = REINTERPRET_CAST(TUint8*,ScanLine(aY)) + (aX / 2); + TRgb pixelColor; + + if (aX & 1) + { + TRgb srcColor(aRgbBuffer[2],aRgbBuffer[1],aRgbBuffer[0]); + if(aShadowing == MAlphaBlend::EShdwBefore) + { + Shadow(srcColor); + } + pixelColor = ::AlphaBlend(srcColor,TRgb::Color16(pixelPtr[0] >> 4),aMaskBuffer[0]); + if(aShadowing == MAlphaBlend::EShdwAfter) + { + Shadow(pixelColor); + } + MapColorToUserDisplayMode(pixelColor); + pixelPtr[0] &= 0x0f; + pixelPtr[0] |= TUint8(pixelColor.Color16() << 4); + + pixelPtr++; + aRgbBuffer += 4; + aMaskBuffer++; + aLength--; + } + + const TUint8* pixelPtrLimit = pixelPtr + (aLength / 2); + TRgb pixelColor1, pixelColor2; + + while (pixelPtr < pixelPtrLimit) + { + TRgb srcColor1(aRgbBuffer[2],aRgbBuffer[1],aRgbBuffer[0]); + if(aShadowing == MAlphaBlend::EShdwBefore) + { + Shadow(srcColor1); + } + pixelColor1 = ::AlphaBlend(srcColor1,TRgb::Color16(pixelPtr[0] & 0x0f),aMaskBuffer[0]); + if(aShadowing == MAlphaBlend::EShdwAfter) + { + Shadow(pixelColor1); + } + MapColorToUserDisplayMode(pixelColor1); + + TRgb srcColor2(aRgbBuffer[6],aRgbBuffer[5],aRgbBuffer[4]); + if(aShadowing == MAlphaBlend::EShdwBefore) + { + Shadow(srcColor2); + } + pixelColor2 = ::AlphaBlend(srcColor2,TRgb::Color16(pixelPtr[0] >> 4),aMaskBuffer[1]); + if(aShadowing == MAlphaBlend::EShdwAfter) + { + Shadow(pixelColor2); + } + MapColorToUserDisplayMode(pixelColor2); + + pixelPtr[0] = TUint8(pixelColor1.Color16()); + pixelPtr[0] |= TUint8(pixelColor2.Color16() << 4); + + pixelPtr++; + aRgbBuffer += 8; + aMaskBuffer += 2; + } + + if (aLength & 1) + { + TRgb srcColor(aRgbBuffer[2],aRgbBuffer[1],aRgbBuffer[0]); + if(aShadowing == MAlphaBlend::EShdwBefore) + { + Shadow(srcColor); + } + pixelColor = ::AlphaBlend(srcColor,TRgb::Color16(pixelPtr[0] & 0x0f),aMaskBuffer[0]); + if(aShadowing == MAlphaBlend::EShdwAfter) + { + Shadow(pixelColor); + } + MapColorToUserDisplayMode(pixelColor); + pixelPtr[0] &= 0xf0; + pixelPtr[0] |= TUint8(pixelColor.Color16()); + } + } + +void CDrawFourBppBitmapColor::WriteRgbMulti(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) + { + const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); + const TInt finishLong = (aX + aLength) & (~7); + const TInt startShift = (startLong - aX) * KBitsPerPixel; + const TInt startShiftExtra = 32 - startShift; + const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; + const TInt yLimit = aY + aHeight; + TUint32 colorWord = ColorInt(aColor); + TUint32* base = ScanLine(aY); + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); + colorWord &= mask; + mask = ~mask; + + for (; aY < yLimit; aY++) + { + pixelPtrLimit[0] &= mask; + pixelPtrLimit[0] |= colorWord; + pixelPtrLimit += iScanLineWords; + } + return; + } + + for (; aY < yLimit; aY++) + { + if (startShift > 0) + pixelPtr[-1] = PasteInt(pixelPtr[-1],colorWord,startShift); + + for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) + tempPixelPtr[0] = colorWord; + + if (finishLong < aX + aLength) + pixelPtrLimit[0] = PasteInt(colorWord,pixelPtrLimit[0],finishShift); + + pixelPtr += iScanLineWords; + pixelPtrLimit += iScanLineWords; + } + } + +void CDrawFourBppBitmapColor::WriteRgbMultiXOR(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) + { + const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); + const TInt finishLong = (aX + aLength) & (~7); + const TInt startShift = (startLong - aX) * KBitsPerPixel; + const TInt startShiftExtra = 32 - startShift; + const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; + const TInt yLimit = aY + aHeight; + TUint32 colorWord = ColorInt(aColor); + TUint32* base = ScanLine(aY); + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); + colorWord &= mask; + + for (; aY < yLimit; aY++) + { + pixelPtrLimit[0] ^= colorWord; + pixelPtrLimit += iScanLineWords; + } + return; + } + + for (; aY < yLimit; aY++) + { + if (startShift > 0) + pixelPtr[-1] ^= PasteInt(0,colorWord,startShift); + + for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) + tempPixelPtr[0] ^= colorWord; + + if (finishLong < aX + aLength) + pixelPtrLimit[0] ^= PasteInt(colorWord,0,finishShift); + + pixelPtr += iScanLineWords; + pixelPtrLimit += iScanLineWords; + } + } + +void CDrawFourBppBitmapColor::WriteRgbMultiAND(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) + { + const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); + const TInt finishLong = (aX + aLength) & (~7); + const TInt startShift = (startLong - aX) * KBitsPerPixel; + const TInt startShiftExtra = 32 - startShift; + const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; + const TInt yLimit = aY + aHeight; + TUint32 colorWord = ColorInt(aColor); + TUint32* base = ScanLine(aY); + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); + colorWord &= mask; + colorWord |= ~mask; + + for (; aY < yLimit; aY++) + { + pixelPtrLimit[0] &= colorWord; + pixelPtrLimit += iScanLineWords; + } + return; + } + + for (; aY < yLimit; aY++) + { + if (startShift > 0) + pixelPtr[-1] &= PasteInt(0xffffffff,colorWord,startShift); + + for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) + tempPixelPtr[0] &= colorWord; + + if (finishLong < aX + aLength) + pixelPtrLimit[0] &= PasteInt(colorWord,0xffffffff,finishShift); + + pixelPtr += iScanLineWords; + pixelPtrLimit += iScanLineWords; + } + } + +void CDrawFourBppBitmapColor::WriteRgbMultiOR(TInt aX,TInt aY,TInt aLength,TInt aHeight,TRgb aColor) + { + const TInt startLong = (aX + KPixelsPerWord - 1) & (~7); + const TInt finishLong = (aX + aLength) & (~7); + const TInt startShift = (startLong - aX) * KBitsPerPixel; + const TInt startShiftExtra = 32 - startShift; + const TInt finishShift = (KPixelsPerWord - aX - aLength + finishLong) * KBitsPerPixel; + const TInt yLimit = aY + aHeight; + TUint32 colorWord = ColorInt(aColor); + TUint32* base = ScanLine(aY); + TUint32* pixelPtr = base + (startLong / KPixelsPerWord); + TUint32* pixelPtrLimit = base + (finishLong / KPixelsPerWord); + + if (finishLong < startLong) + { + TUint32 mask = (0xffffffff >> finishShift) & (0xffffffff << startShiftExtra); + colorWord &= mask; + + for (; aY < yLimit; aY++) + { + pixelPtrLimit[0] |= colorWord; + pixelPtrLimit += iScanLineWords; + } + return; + } + + for (; aY < yLimit; aY++) + { + if (startShift > 0) + pixelPtr[-1] |= PasteInt(0,colorWord,startShift); + + for (TUint32* tempPixelPtr = pixelPtr; tempPixelPtr < pixelPtrLimit; tempPixelPtr++) + tempPixelPtr[0] |= colorWord; + + if (finishLong < aX + aLength) + pixelPtrLimit[0] |= PasteInt(colorWord,0,finishShift); + + pixelPtr += iScanLineWords; + pixelPtrLimit += iScanLineWords; + } + } + +void CDrawFourBppBitmapColor::WriteRgbAlphaMulti(TInt aX,TInt aY,TInt aLength,TRgb aColor,const TUint8* aMaskBuffer) + { + DeOrientate(aX,aY); + TUint8* pixelPtr = REINTERPRET_CAST(TUint8*,ScanLine(aY)) + (aX / 2); + const TBool oddEndCoord = (aX + aLength) & 1; + const TUint8* maskBufferPtrLimit = aMaskBuffer + aLength - (oddEndCoord ? 1 : 0); + + if (iShadowMode) + Shadow(aColor); + + const TInt red = aColor.Red(); + const TInt green = aColor.Green(); + const TInt blue = aColor.Blue(); + + TRgb pixelColor; + + if (aX & 1) + { + pixelColor = AlphaBlend(red,green,blue,TRgb::Color16(pixelPtr[0] >> 4),aMaskBuffer[0]); + pixelPtr[0] &= 0x0f; + pixelPtr[0] |= TUint8(pixelColor.Color16() << 4); + + pixelPtr++; + aMaskBuffer++; + } + + TRgb lowerPixelColor, upperPixelColor; + + while (aMaskBuffer < maskBufferPtrLimit) + { + lowerPixelColor = AlphaBlend(red,green,blue,TRgb::Color16(pixelPtr[0] & 0x0f),aMaskBuffer[0]); + upperPixelColor = AlphaBlend(red,green,blue,TRgb::Color16(pixelPtr[0] >> 4),aMaskBuffer[1]); + pixelPtr[0] = TUint8(lowerPixelColor.Color16()); + pixelPtr[0] |= TUint8(upperPixelColor.Color16() << 4); + + pixelPtr++; + aMaskBuffer += 2; + } + + if (oddEndCoord) + { + pixelColor = AlphaBlend(red,green,blue,TRgb::Color16(pixelPtr[0] & 0x0f),aMaskBuffer[0]); + pixelPtr[0] &= 0xf0; + pixelPtr[0] |= TUint8(pixelColor.Color16()); + } + } + +void CDrawFourBppBitmapColor::MapColorToUserDisplayMode(TRgb& aColor) + { + switch (iUserDispMode) + { + case EGray2: + aColor = TRgb::_Gray2(aColor._Gray2()); + break; + case EGray4: + case EGray16:// EGray16 can't be done - nearest is EGray4 + case EGray256:// EGray256 can't be done - nearest is EGray4 + aColor = TRgb::_Gray4(aColor._Gray4()); + break; + default: + break; + } + } + +void CDrawFourBppBitmapColor::MapBufferToUserDisplayMode(TInt aLength,TUint32* aBuffer) + { + TUint8* bufferPtr = (TUint8*)aBuffer; + const TUint8* bufferLimit = bufferPtr + ((aLength + 1) / 2); + TRgb color1, color2; + + switch (iUserDispMode) + { + case EGray2: + while (bufferPtr < bufferLimit) + { + color1 = TRgb::Color16(*bufferPtr & 0xf); + color2 = TRgb::Color16(*bufferPtr >> 4); + color1 = TRgb::_Gray2(color1._Gray2()); + color2 = TRgb::_Gray2(color2._Gray2()); + *bufferPtr++ = TUint8(color1.Color16() | (color2.Color16() << 4)); + } + break; + case EGray4: + case EGray16:// EGray256 can't be done - nearest is EGray4 + case EGray256:// EGray256 can't be done - nearest is EGray4 + while (bufferPtr < bufferLimit) + { + color1 = TRgb::Color16(*bufferPtr & 0xf); + color2 = TRgb::Color16(*bufferPtr >> 4); + color1 = TRgb::_Gray4(color1._Gray4()); + color2 = TRgb::_Gray4(color2._Gray4()); + *bufferPtr++ = TUint8(color1.Color16() | (color2.Color16() << 4)); + } + break; + default: + break; + } + } + +TInt CDrawFourBppBitmapColor::WriteRgbOutlineAndShadow(TInt aX, TInt aY, const TInt aLength, + TUint32 aOutlinePenColor, TUint32 aShadowColor, + TUint32 aFillColor, const TUint8* aDataBuffer) + { + //This is non-optimised since this screen mode is rarely used and is usually + //fast enough without optimisation. + DeOrientate(aX,aY); + TUint8* pixelPtr = REINTERPRET_CAST(TUint8*,ScanLine(aY)) + (aX / 2); + const TBool oddEndCoord = (aX + aLength) & 1; + const TUint8* dataBufferPtrLimit = aDataBuffer + aLength - (oddEndCoord ? 1 : 0); + + TUint8 index = 0; + TRgb finalColor; + TRgb lowerPixelColor; + TRgb upperPixelColor; + + TRgb outlinePenColor; + outlinePenColor.SetInternal(aOutlinePenColor); + TRgb shadowColor; + shadowColor.SetInternal(aShadowColor); + TRgb fillColor; + fillColor.SetInternal(aFillColor); + + const TInt redOutlinePenColor = outlinePenColor.Red(); + const TInt redShadowColor = shadowColor.Red(); + const TInt redFillColor = fillColor.Red(); + + const TInt greenOutlinePenColor = outlinePenColor.Green(); + const TInt greenShadowColor = shadowColor.Green(); + const TInt greenFillColor = fillColor.Green(); + + const TInt blueOutlinePenColor = outlinePenColor.Blue(); + const TInt blueShadowColor = shadowColor.Blue(); + const TInt blueFillColor = fillColor.Blue(); + + if (aX & 1) + { + index = *aDataBuffer; + if (255 != FourColorBlendLookup[index][KBackgroundColorIndex]) + { + TRgb backgroundColor = TRgb::Color16(pixelPtr[0] >> 4); + finalColor = BlendFourColors(aOutlinePenColor, aShadowColor, aFillColor, + redOutlinePenColor, redShadowColor, redFillColor, + greenOutlinePenColor, greenShadowColor, greenFillColor, + blueOutlinePenColor, blueShadowColor, blueFillColor, + backgroundColor, index); + pixelPtr[0] &= 0x0f; + pixelPtr[0] |= TUint8(finalColor.Color16() << 4); + } + pixelPtr++; + aDataBuffer++; + } + + while (aDataBuffer < dataBufferPtrLimit) + { + index = aDataBuffer[0]; + TRgb upperPixelBackgroundColor = TRgb::Color16(pixelPtr[0] >> 4); + if (255 != FourColorBlendLookup[index][KBackgroundColorIndex]) + { + TRgb lowerPixelBackgroundColor = TRgb::Color16(pixelPtr[0] & 0x0f ); + lowerPixelColor = BlendFourColors(aOutlinePenColor, aShadowColor, aFillColor, + redOutlinePenColor, redShadowColor, redFillColor, + greenOutlinePenColor, greenShadowColor, greenFillColor, + blueOutlinePenColor, blueShadowColor, blueFillColor, + lowerPixelBackgroundColor, index); + pixelPtr[0] = TUint8(lowerPixelColor.Color16()); + } + + index = aDataBuffer[1]; + if (255 != FourColorBlendLookup[index][KBackgroundColorIndex]) + { + upperPixelColor = BlendFourColors(aOutlinePenColor, aShadowColor, aFillColor, + redOutlinePenColor, redShadowColor, redFillColor, + greenOutlinePenColor, greenShadowColor, greenFillColor, + blueOutlinePenColor, blueShadowColor, blueFillColor, + upperPixelBackgroundColor, index); + pixelPtr[0] |= TUint8(upperPixelColor.Color16() << 4); + } + pixelPtr++; + aDataBuffer += 2; + } + + if (oddEndCoord) + { + index = aDataBuffer[0]; + if(255 != FourColorBlendLookup[index][KBackgroundColorIndex]) + { + TRgb backgroundColor = TRgb::Color16(pixelPtr[0] & 0x0f ); + finalColor = BlendFourColors(aOutlinePenColor, aShadowColor, aFillColor, + redOutlinePenColor, redShadowColor, redFillColor, + greenOutlinePenColor, greenShadowColor, greenFillColor, + blueOutlinePenColor, blueShadowColor, blueFillColor, + backgroundColor, index); + pixelPtr[0] &= 0xf0; + pixelPtr[0] |= TUint8(finalColor.Color16()); + } + } + return KErrNone; + } + +TRgb CDrawFourBppBitmapColor::BlendFourColors(TUint32 aOutlinePenColor, TUint32 aShadowColor, TUint32 aFillColor, + TInt aRedOutlinePenColor, TInt aRedShadowColor,TInt aRedFillColor, + TInt aGreenOutlinePenColor, TInt aGreenShadowColor, TInt aGreenFillColor, + TInt aBlueOutlinePenColor, TInt aBlueShadowColor, TInt aBlueFillColor, + TRgb aBackgroundColor, TUint8 aIndex) const + { + TRgb finalColor; + if (255 == FourColorBlendLookup[aIndex][KFillColorIndex]) + { + //fill colour + finalColor.SetInternal(aFillColor); + } + else if (255 == FourColorBlendLookup[aIndex][KShadowColorIndex]) + { + //Shadow colour + finalColor.SetInternal(aShadowColor); + } + else if (255 == FourColorBlendLookup[aIndex][KOutlineColorIndex]) + { + //Outline colour + finalColor.SetInternal(aOutlinePenColor); + } + else + { + TInt blendedRedColor = (aRedOutlinePenColor * FourColorBlendLookup[aIndex][KOutlineColorIndex] + + aRedShadowColor * FourColorBlendLookup[aIndex][KShadowColorIndex] + + aRedFillColor * FourColorBlendLookup[aIndex][KFillColorIndex] + + aBackgroundColor.Red() * FourColorBlendLookup[aIndex][KBackgroundColorIndex]) >> 8; + + TInt blendedGreenColor = (aGreenOutlinePenColor * FourColorBlendLookup[aIndex][KOutlineColorIndex] + + aGreenShadowColor * FourColorBlendLookup[aIndex][KShadowColorIndex] + + aGreenFillColor * FourColorBlendLookup[aIndex][KFillColorIndex] + + aBackgroundColor.Green() * FourColorBlendLookup[aIndex][KBackgroundColorIndex]) >> 8; + + TInt blendedBlueColor = (aBlueOutlinePenColor * FourColorBlendLookup[aIndex][KOutlineColorIndex] + + aBlueShadowColor * FourColorBlendLookup[aIndex][KShadowColorIndex] + + aBlueFillColor * FourColorBlendLookup[aIndex][KFillColorIndex] + + aBackgroundColor.Blue() * FourColorBlendLookup[aIndex][KBackgroundColorIndex]) >> 8; + finalColor = TRgb(blendedRedColor, blendedGreenColor, blendedBlueColor); + } + return finalColor; + }