Improved coding style as shown in examples fdo#75240

Change-Id: I6a19453637ea6de8e8c834ad14d7cdf712671e46
diff --git a/vcl/source/gdi/bitmap3.cxx b/vcl/source/gdi/bitmap3.cxx
index f8bdb4e..eed5988 100644
--- a/vcl/source/gdi/bitmap3.cxx
+++ b/vcl/source/gdi/bitmap3.cxx
@@ -212,9 +212,9 @@ const long FloydIndexMap[6] =

void ImplCreateDitherMatrix( sal_uInt8 (*pDitherMatrix)[16][16] )
{
    double fVal = 3.125;
    const double fVal = 3.125;
    const double fVal16 = fVal / 16.;
    long i, j, k, l;
    const double fValScale = 254.;
    sal_uInt16 pMtx[ 16 ][ 16 ];
    sal_uInt16 nMax = 0;
    static const sal_uInt8 pMagic[4][4] = { { 0, 14,  3, 13, },
@@ -223,17 +223,20 @@ void ImplCreateDitherMatrix( sal_uInt8 (*pDitherMatrix)[16][16] )
                                     {7,   9,  4, 10 } };

    // Build MagicSquare
    for ( i = 0; i < 4; i++ )
       for ( j = 0; j < 4; j++ )
           for ( k = 0; k < 4; k++ )
                for ( l = 0; l < 4; l++ )
                    nMax = std::max ( pMtx[ (k<<2) + i][(l<<2 ) + j] =
                    (sal_uInt16) ( 0.5 + pMagic[i][j]*fVal + pMagic[k][l]*fVal16 ), nMax );
    for ( long i = 0; i < 4; i++ )
       for ( long j = 0; j < 4; j++ )
           for ( long k = 0; k < 4; k++ )
                for ( long l = 0; l < 4; l++ )
                {
                    pMtx[ (k<<2) + i][(l<<2 ) + j ] = (sal_uInt16) ( 0.5 + pMagic[i][j]*fVal + pMagic[k][l]*fVal16 );
                    nMax = std::max ( pMtx[ (k<<2) + i][(l<<2 ) + j], nMax );
                }

    // Scale to interval [0;254]
    for ( i = 0, fVal = 254. / nMax; i < 16; i++ )
        for( j = 0; j < 16; j++ )
            (*pDitherMatrix)[i][j] = (sal_uInt8) ( fVal * pMtx[i][j] );
    double tmp = fValScale / nMax;
    for ( long i = 0; i < 16; i++ )
        for( long j = 0; j < 16; j++ )
            (*pDitherMatrix)[i][j] = (sal_uInt8) ( tmp * pMtx[i][j] );
}

bool Bitmap::Convert( BmpConversion eConversion )
@@ -684,7 +687,6 @@ bool Bitmap::ImplConvertDown( sal_uInt16 nBitCount, Color* pExtColor )
            boost::scoped_array<ImpErrorQuad> pErrQuad2(new ImpErrorQuad[ nWidth ]);
            ImpErrorQuad* pQLine1 = pErrQuad1.get();
            ImpErrorQuad* pQLine2 = 0;
            long nX, nY;
            long nYTmp = 0L;
            sal_uInt8 cIndex;
            bool bQ1 = true;
@@ -705,9 +707,10 @@ bool Bitmap::ImplConvertDown( sal_uInt16 nBitCount, Color* pExtColor )

            pWriteAcc->SetPalette( aPal );

            for( nY = 0L; nY < std::min( nHeight, 2L ); nY++, nYTmp++ )
            for( long nY = 0L; nY < std::min( nHeight, 2L ); nY++, nYTmp++ )
            {
                for( nX = 0L, pQLine2 = !nY ? pErrQuad1.get() : pErrQuad2.get(); nX < nWidth; nX++ )
                pQLine2 = !nY ? pErrQuad1.get() : pErrQuad2.get();
                for( long nX = 0L; nX < nWidth; nX++ )
                {
                    if( pReadAcc->HasPalette() )
                        pQLine2[ nX ] = pReadAcc->GetPaletteColor( pReadAcc->GetPixelIndex( nYTmp, nX ) );
@@ -716,12 +719,13 @@ bool Bitmap::ImplConvertDown( sal_uInt16 nBitCount, Color* pExtColor )
                }
            }

            for( nY = 0L; nY < nHeight; nY++, nYTmp++ )
            for( long nY = 0L; nY < nHeight; nY++, nYTmp++ )
            {
                // first pixel in the line
                cIndex = (sal_uInt8) aColorMap.GetBestPaletteIndex( pQLine1[ 0 ].ImplGetColor() );
                pWriteAcc->SetPixelIndex( nY, 0, cIndex );

                long nX;
                for( nX = 1L; nX < nWidth1; nX++ )
                {
                    cIndex = (sal_uInt8) aColorMap.GetBestPaletteIndex( aColor = pQLine1[ nX ].ImplGetColor() );
@@ -1099,10 +1103,6 @@ bool Bitmap::ImplScaleInterpolate( const double& rScaleX, const double& rScaleY 
        long nHeight = pReadAcc->Height();
        Bitmap aNewBmp( Size( nNewWidth, nHeight ), 24 );
        BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess();
        long nX, nY;
        long lXB0, lXB1, lXG0, lXG1, lXR0, lXR1;
        double fTemp;
        long nTemp;

        if( pReadAcc && pWriteAcc )
        {
@@ -1113,15 +1113,15 @@ bool Bitmap::ImplScaleInterpolate( const double& rScaleX, const double& rScaleY 
            boost::scoped_array<long> pLutInt(new long[ nNewWidth ]);
            boost::scoped_array<long> pLutFrac(new long[ nNewWidth ]);

            for( nX = 0L, nTemp = nWidth - 2L; nX < nNewWidth; nX++ )
            for( long nX = 0L, nTemp = nWidth - 2L; nX < nNewWidth; nX++ )
            {
                fTemp = nX * fRevScaleX;
                double fTemp = nX * fRevScaleX;
                pLutInt[ nX ] = MinMax( (long) fTemp, 0, nTemp );
                fTemp -= pLutInt[ nX ];
                pLutFrac[ nX ] = (long) ( fTemp * 1024. );
            }

            for( nY = 0L; nY < nHeight; nY++ )
            for( long nY = 0L; nY < nHeight; nY++ )
            {
                if( 1 == nWidth )
                {
@@ -1135,16 +1135,16 @@ bool Bitmap::ImplScaleInterpolate( const double& rScaleX, const double& rScaleY 
                        aCol0 = pReadAcc->GetPixel( nY, 0 );
                    }

                    for( nX = 0L; nX < nNewWidth; nX++ )
                    for( long nX = 0L; nX < nNewWidth; nX++ )
                    {
                        pWriteAcc->SetPixel( nY, nX, aCol0 );
                    }
                }
                else
                {
                    for( nX = 0L; nX < nNewWidth; nX++ )
                    for( long nX = 0L; nX < nNewWidth; nX++ )
                    {
                        nTemp = pLutInt[ nX ];
                        long nTemp = pLutInt[ nX ];

                        BitmapColor aCol0, aCol1;
                        if( pReadAcc->HasPalette() )
@@ -1160,9 +1160,12 @@ bool Bitmap::ImplScaleInterpolate( const double& rScaleX, const double& rScaleY 

                        nTemp = pLutFrac[ nX ];

                        lXR1 = aCol1.GetRed() - ( lXR0 = aCol0.GetRed() );
                        lXG1 = aCol1.GetGreen() - ( lXG0 = aCol0.GetGreen() );
                        lXB1 = aCol1.GetBlue() - ( lXB0 = aCol0.GetBlue() );
                        long lXR0 = aCol0.GetRed();
                        long lXG0 = aCol0.GetGreen();
                        long lXB0 = aCol0.GetBlue();
                        long lXR1 = aCol1.GetRed() - lXR0;
                        long lXG1 = aCol1.GetGreen() - lXG0;
                        long lXB1 = aCol1.GetBlue() - lXB0;

                        aCol0.SetRed( (sal_uInt8) ( ( lXR1 * nTemp + ( lXR0 << 10 ) ) >> 10 ) );
                        aCol0.SetGreen( (sal_uInt8) ( ( lXG1 * nTemp + ( lXG0 << 10 ) ) >> 10 ) );
@@ -1197,9 +1200,9 @@ bool Bitmap::ImplScaleInterpolate( const double& rScaleX, const double& rScaleY 
                boost::scoped_array<long> pLutInt(new long[ nNewHeight ]);
                boost::scoped_array<long> pLutFrac(new long[ nNewHeight ]);

                for( nY = 0L, nTemp = nHeight - 2L; nY < nNewHeight; nY++ )
                for( long nY = 0L, nTemp = nHeight - 2L; nY < nNewHeight; nY++ )
                {
                    fTemp = nY * fRevScaleY;
                    double fTemp = nY * fRevScaleY;
                    pLutInt[ nY ] = MinMax( (long) fTemp, 0, nTemp );
                    fTemp -= pLutInt[ nY ];
                    pLutFrac[ nY ] = (long) ( fTemp * 1024. );
@@ -1208,31 +1211,34 @@ bool Bitmap::ImplScaleInterpolate( const double& rScaleX, const double& rScaleY 
                // after 1st step, bitmap *is* 24bit format (see above)
                OSL_ENSURE(!pReadAcc->HasPalette(), "OOps, somehow ImplScaleInterpolate in-between format has palette, should not happen (!)");

                for( nX = 0L; nX < nNewWidth; nX++ )
                for( long nX = 0L; nX < nNewWidth; nX++ )
                {
                    if( 1 == nHeight )
                    {
                        BitmapColor aCol0 = pReadAcc->GetPixel( 0, nX );

                        for( nY = 0L; nY < nNewHeight; nY++ )
                        for( long nY = 0L; nY < nNewHeight; nY++ )
                        {
                            pWriteAcc->SetPixel( nY, nX, aCol0 );
                        }
                    }
                    else
                    {
                        for( nY = 0L; nY < nNewHeight; nY++ )
                        for( long nY = 0L; nY < nNewHeight; nY++ )
                        {
                            nTemp = pLutInt[ nY ];
                            long nTemp = pLutInt[ nY ];

                            BitmapColor aCol0 = pReadAcc->GetPixel( nTemp++, nX );
                            BitmapColor aCol1 = pReadAcc->GetPixel( nTemp, nX );

                            nTemp = pLutFrac[ nY ];

                            lXR1 = aCol1.GetRed() - ( lXR0 = aCol0.GetRed() );
                            lXG1 = aCol1.GetGreen() - ( lXG0 = aCol0.GetGreen() );
                            lXB1 = aCol1.GetBlue() - ( lXB0 = aCol0.GetBlue() );
                            long lXR0 = aCol0.GetRed();
                            long lXG0 = aCol0.GetGreen();
                            long lXB0 = aCol0.GetBlue();
                            long lXR1 = aCol1.GetRed() - lXR0;
                            long lXG1 = aCol1.GetGreen() - lXG0;
                            long lXB1 = aCol1.GetBlue() - lXB0;

                            aCol0.SetRed( (sal_uInt8) ( ( lXR1 * nTemp + ( lXR0 << 10 ) ) >> 10 ) );
                            aCol0.SetGreen( (sal_uInt8) ( ( lXG1 * nTemp + ( lXG0 << 10 ) ) >> 10 ) );
@@ -2671,15 +2677,17 @@ bool Bitmap::ImplDitherFloyd16()
        boost::scoped_array<ImpErrorQuad> pErrQuad2(new ImpErrorQuad[ nWidth ]);
        ImpErrorQuad* pQLine1 = pErrQuad1.get();
        ImpErrorQuad* pQLine2 = 0;
        long nX, nY;
        long nYTmp = 0L;
        bool bQ1 = true;

        for( nY = 0L; nY < std::min( nHeight, 2L ); nY++, nYTmp++ )
            for( nX = 0L, pQLine2 = !nY ? pErrQuad1.get() : pErrQuad2.get(); nX < nWidth; nX++ )
        for( long nY = 0L; nY < std::min( nHeight, 2L ); nY++, nYTmp++ )
        {
            pQLine2 = !nY ? pErrQuad1.get() : pErrQuad2.get();
            for( long nX = 0L; nX < nWidth; nX++ )
                pQLine2[ nX ] = pReadAcc->GetPixel( nYTmp, nX );
        }

        for( nY = 0L; nY < nHeight; nY++, nYTmp++ )
        for( long nY = 0L; nY < nHeight; nY++, nYTmp++ )
        {
            // First RowPixel
            aBestCol = pQLine1[ 0 ].ImplGetColor();
@@ -2688,6 +2696,7 @@ bool Bitmap::ImplDitherFloyd16()
            aBestCol.SetBlue( ( aBestCol.GetBlue() & 248 ) | 7 );
            pWriteAcc->SetPixel( nY, 0, aBestCol );

            long nX;
            for( nX = 1L; nX < nWidth1; nX++ )
            {
                aColor = pQLine1[ nX ].ImplGetColor();
@@ -2867,15 +2876,14 @@ bool Bitmap::ImplReducePopular( sal_uInt16 nColCount )
        const long nWidth = pRAcc->Width();
        const long nHeight = pRAcc->Height();
        boost::scoped_array<PopularColorCount> pCountTable(new PopularColorCount[ nTotalColors ]);
        long nX, nY, nR, nG, nB, nIndex;

        memset( pCountTable.get(), 0, nTotalColors * sizeof( PopularColorCount ) );

        for( nR = 0, nIndex = 0; nR < 256; nR += nColorOffset )
        for( long nR = 0, nIndex = 0; nR < 256; nR += nColorOffset )
        {
            for( nG = 0; nG < 256; nG += nColorOffset )
            for( long nG = 0; nG < 256; nG += nColorOffset )
            {
                for( nB = 0; nB < 256; nB += nColorOffset )
                for( long nB = 0; nB < 256; nB += nColorOffset )
                {
                    pCountTable[ nIndex ].mnIndex = nIndex;
                    nIndex++;
@@ -2885,9 +2893,9 @@ bool Bitmap::ImplReducePopular( sal_uInt16 nColCount )

        if( pRAcc->HasPalette() )
        {
            for( nY = 0L; nY < nHeight; nY++ )
            for( long nY = 0L; nY < nHeight; nY++ )
            {
                for( nX = 0L; nX < nWidth; nX++ )
                for( long nX = 0L; nX < nWidth; nX++ )
                {
                    const BitmapColor& rCol = pRAcc->GetPaletteColor( pRAcc->GetPixelIndex( nY, nX ) );
                    pCountTable[ ( ( ( (sal_uInt32) rCol.GetRed() ) >> nRightShiftBits ) << nLeftShiftBits2 ) |
@@ -2898,9 +2906,9 @@ bool Bitmap::ImplReducePopular( sal_uInt16 nColCount )
        }
        else
        {
            for( nY = 0L; nY < nHeight; nY++ )
            for( long nY = 0L; nY < nHeight; nY++ )
            {
                for( nX = 0L; nX < nWidth; nX++ )
                for( long nX = 0L; nX < nWidth; nX++ )
                {
                    const BitmapColor aCol( pRAcc->GetPixel( nY, nX ) );
                    pCountTable[ ( ( ( (sal_uInt32) aCol.GetRed() ) >> nRightShiftBits ) << nLeftShiftBits2 ) |
@@ -2930,16 +2938,16 @@ bool Bitmap::ImplReducePopular( sal_uInt16 nColCount )
            BitmapColor aDstCol( (sal_uInt8) 0 );
            boost::scoped_array<sal_uInt8> pIndexMap(new sal_uInt8[ nTotalColors ]);

            for( nR = 0, nIndex = 0; nR < 256; nR += nColorOffset )
                for( nG = 0; nG < 256; nG += nColorOffset )
                    for( nB = 0; nB < 256; nB += nColorOffset )
            for( long nR = 0, nIndex = 0; nR < 256; nR += nColorOffset )
                for( long nG = 0; nG < 256; nG += nColorOffset )
                    for( long nB = 0; nB < 256; nB += nColorOffset )
                        pIndexMap[ nIndex++ ] = (sal_uInt8) aNewPal.GetBestIndex( BitmapColor( (sal_uInt8) nR, (sal_uInt8) nG, (sal_uInt8) nB ) );

            if( pRAcc->HasPalette() )
            {
                for( nY = 0L; nY < nHeight; nY++ )
                for( long nY = 0L; nY < nHeight; nY++ )
                {
                    for( nX = 0L; nX < nWidth; nX++ )
                    for( long nX = 0L; nX < nWidth; nX++ )
                    {
                        const BitmapColor& rCol = pRAcc->GetPaletteColor( pRAcc->GetPixelIndex( nY, nX ) );
                        aDstCol.SetIndex( pIndexMap[ ( ( ( (sal_uInt32) rCol.GetRed() ) >> nRightShiftBits ) << nLeftShiftBits2 ) |
@@ -2951,9 +2959,9 @@ bool Bitmap::ImplReducePopular( sal_uInt16 nColCount )
            }
            else
            {
                for( nY = 0L; nY < nHeight; nY++ )
                for( long nY = 0L; nY < nHeight; nY++ )
                {
                    for( nX = 0L; nX < nWidth; nX++ )
                    for( long nX = 0L; nX < nWidth; nX++ )
                    {
                        const BitmapColor aCol( pRAcc->GetPixel( nY, nX ) );
                        aDstCol.SetIndex( pIndexMap[ ( ( ( (sal_uInt32) aCol.GetRed() ) >> nRightShiftBits ) << nLeftShiftBits2 ) |
@@ -3240,7 +3248,6 @@ bool Bitmap::Adjust( short nLuminancePercent, short nContrastPercent,
            boost::scoped_array<sal_uInt8> cMapR(new sal_uInt8[ 256 ]);
            boost::scoped_array<sal_uInt8> cMapG(new sal_uInt8[ 256 ]);
            boost::scoped_array<sal_uInt8> cMapB(new sal_uInt8[ 256 ]);
            long nX, nY;
            double fM, fROff, fGOff, fBOff, fOff;

            // calculate slope
@@ -3262,7 +3269,7 @@ bool Bitmap::Adjust( short nLuminancePercent, short nContrastPercent,
            const bool bGamma = ( fGamma != 1.0 );

            // create mapping table
            for( nX = 0L; nX < 256L; nX++ )
            for( long nX = 0L; nX < 256L; nX++ )
            {
                cMapR[ nX ] = (sal_uInt8) MinMax( FRound( nX * fM + fROff ), 0L, 255L );
                cMapG[ nX ] = (sal_uInt8) MinMax( FRound( nX * fM + fGOff ), 0L, 255L );
@@ -3299,11 +3306,11 @@ bool Bitmap::Adjust( short nLuminancePercent, short nContrastPercent,
            }
            else if( pAcc->GetScanlineFormat() == BMP_FORMAT_24BIT_TC_BGR )
            {
                for( nY = 0L; nY < nH; nY++ )
                for( long nY = 0L; nY < nH; nY++ )
                {
                    Scanline pScan = pAcc->GetScanline( nY );

                    for( nX = 0L; nX < nW; nX++ )
                    for( long nX = 0L; nX < nW; nX++ )
                    {
                        *pScan = cMapB[ *pScan ]; pScan++;
                        *pScan = cMapG[ *pScan ]; pScan++;
@@ -3313,11 +3320,11 @@ bool Bitmap::Adjust( short nLuminancePercent, short nContrastPercent,
            }
            else if( pAcc->GetScanlineFormat() == BMP_FORMAT_24BIT_TC_RGB )
            {
                for( nY = 0L; nY < nH; nY++ )
                for( long nY = 0L; nY < nH; nY++ )
                {
                    Scanline pScan = pAcc->GetScanline( nY );

                    for( nX = 0L; nX < nW; nX++ )
                    for( long nX = 0L; nX < nW; nX++ )
                    {
                        *pScan = cMapR[ *pScan ]; pScan++;
                        *pScan = cMapG[ *pScan ]; pScan++;
@@ -3327,9 +3334,9 @@ bool Bitmap::Adjust( short nLuminancePercent, short nContrastPercent,
            }
            else
            {
                for( nY = 0L; nY < nH; nY++ )
                for( long nY = 0L; nY < nH; nY++ )
                {
                    for( nX = 0L; nX < nW; nX++ )
                    for( long nX = 0L; nX < nW; nX++ )
                    {
                        aCol = pAcc->GetPixel( nY, nX );
                        aCol.SetRed( cMapR[ aCol.GetRed() ] );