/************************************************************** * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * *************************************************************/ // MARKER(update_precomp.py): autogen include statement, do not remove #include "precompiled_vcl.hxx" #include #include #include #include // ----------- // - Defines - // ----------- #define S2(a,b) { register long t; if( ( t = b - a ) < 0 ) { a += t; b -= t; } } #define MN3(a,b,c) S2(a,b); S2(a,c); #define MX3(a,b,c) S2(b,c); S2(a,c); #define MNMX3(a,b,c) MX3(a,b,c); S2(a,b); #define MNMX4(a,b,c,d) S2(a,b); S2(c,d); S2(a,c); S2(b,d); #define MNMX5(a,b,c,d,e) S2(a,b); S2(c,d); MN3(a,c,e); MX3(b,d,e); #define MNMX6(a,b,c,d,e,f) S2(a,d); S2(b,e); S2(c,f); MN3(a,b,c); MX3(d,e,f); // ---------- // - Bitmap - // ---------- sal_Bool Bitmap::Filter( BmpFilter eFilter, const BmpFilterParam* pFilterParam, const Link* pProgress ) { sal_Bool bRet = sal_False; switch( eFilter ) { case( BMP_FILTER_SMOOTH ): { const long pSmoothMatrix[] = { 1, 2, 1, 2, 5, 2, 1, 2, 1 }; bRet = ImplConvolute3( &pSmoothMatrix[ 0 ], 17, pFilterParam, pProgress ); } break; case( BMP_FILTER_SHARPEN ): { const long pSharpenMatrix[] = { -1, -1, -1, -1, 16, -1, -1, -1, -1 }; bRet = ImplConvolute3( &pSharpenMatrix[ 0 ], 8, pFilterParam, pProgress ); } break; case( BMP_FILTER_REMOVENOISE ): bRet = ImplMedianFilter( pFilterParam, pProgress ); break; case( BMP_FILTER_SOBEL_GREY ): bRet = ImplSobelGrey( pFilterParam, pProgress ); break; case( BMP_FILTER_SOLARIZE ): bRet = ImplSolarize( pFilterParam, pProgress ); break; case( BMP_FILTER_SEPIA ): bRet = ImplSepia( pFilterParam, pProgress ); break; case( BMP_FILTER_MOSAIC ): bRet = ImplMosaic( pFilterParam, pProgress ); break; case( BMP_FILTER_EMBOSS_GREY ): bRet = ImplEmbossGrey( pFilterParam, pProgress ); break; case( BMP_FILTER_POPART ): bRet = ImplPopArt( pFilterParam, pProgress ); break; default: DBG_ERROR( "Bitmap::Convert(): Unsupported filter" ); break; } return bRet; } // ----------------------------------------------------------------------------- sal_Bool Bitmap::ImplConvolute3( const long* pMatrix, long nDivisor, const BmpFilterParam* /*pFilterParam*/, const Link* /*pProgress*/ ) { BitmapReadAccess* pReadAcc = AcquireReadAccess(); sal_Bool bRet = sal_False; if( pReadAcc ) { Bitmap aNewBmp( GetSizePixel(), 24 ); BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess(); if( pWriteAcc ) { const long nWidth = pWriteAcc->Width(), nWidth2 = nWidth + 2; const long nHeight = pWriteAcc->Height(), nHeight2 = nHeight + 2; long* pColm = new long[ nWidth2 ]; long* pRows = new long[ nHeight2 ]; BitmapColor* pColRow1 = (BitmapColor*) new sal_uInt8[ sizeof( BitmapColor ) * nWidth2 ]; BitmapColor* pColRow2 = (BitmapColor*) new sal_uInt8[ sizeof( BitmapColor ) * nWidth2 ]; BitmapColor* pColRow3 = (BitmapColor*) new sal_uInt8[ sizeof( BitmapColor ) * nWidth2 ]; BitmapColor* pRowTmp1 = pColRow1; BitmapColor* pRowTmp2 = pColRow2; BitmapColor* pRowTmp3 = pColRow3; BitmapColor* pColor; long nY, nX, i, nSumR, nSumG, nSumB, nMatrixVal, nTmp; long (*pKoeff)[ 256 ] = new long[ 9 ][ 256 ]; long* pTmp; // create LUT of products of matrix value and possible color component values for( nY = 0; nY < 9; nY++ ) for( nX = nTmp = 0, nMatrixVal = pMatrix[ nY ]; nX < 256; nX++, nTmp += nMatrixVal ) pKoeff[ nY ][ nX ] = nTmp; // create column LUT for( i = 0; i < nWidth2; i++ ) pColm[ i ] = ( i > 0 ) ? ( i - 1 ) : 0; pColm[ nWidth + 1 ] = pColm[ nWidth ]; // create row LUT for( i = 0; i < nHeight2; i++ ) pRows[ i ] = ( i > 0 ) ? ( i - 1 ) : 0; pRows[ nHeight + 1 ] = pRows[ nHeight ]; // read first three rows of bitmap color for( i = 0; i < nWidth2; i++ ) { pColRow1[ i ] = pReadAcc->GetColor( pRows[ 0 ], pColm[ i ] ); pColRow2[ i ] = pReadAcc->GetColor( pRows[ 1 ], pColm[ i ] ); pColRow3[ i ] = pReadAcc->GetColor( pRows[ 2 ], pColm[ i ] ); } // do convolution for( nY = 0; nY < nHeight; ) { for( nX = 0; nX < nWidth; nX++ ) { // first row nSumR = ( pTmp = pKoeff[ 0 ] )[ ( pColor = pRowTmp1 + nX )->GetRed() ]; nSumG = pTmp[ pColor->GetGreen() ]; nSumB = pTmp[ pColor->GetBlue() ]; nSumR += ( pTmp = pKoeff[ 1 ] )[ ( ++pColor )->GetRed() ]; nSumG += pTmp[ pColor->GetGreen() ]; nSumB += pTmp[ pColor->GetBlue() ]; nSumR += ( pTmp = pKoeff[ 2 ] )[ ( ++pColor )->GetRed() ]; nSumG += pTmp[ pColor->GetGreen() ]; nSumB += pTmp[ pColor->GetBlue() ]; // second row nSumR += ( pTmp = pKoeff[ 3 ] )[ ( pColor = pRowTmp2 + nX )->GetRed() ]; nSumG += pTmp[ pColor->GetGreen() ]; nSumB += pTmp[ pColor->GetBlue() ]; nSumR += ( pTmp = pKoeff[ 4 ] )[ ( ++pColor )->GetRed() ]; nSumG += pTmp[ pColor->GetGreen() ]; nSumB += pTmp[ pColor->GetBlue() ]; nSumR += ( pTmp = pKoeff[ 5 ] )[ ( ++pColor )->GetRed() ]; nSumG += pTmp[ pColor->GetGreen() ]; nSumB += pTmp[ pColor->GetBlue() ]; // third row nSumR += ( pTmp = pKoeff[ 6 ] )[ ( pColor = pRowTmp3 + nX )->GetRed() ]; nSumG += pTmp[ pColor->GetGreen() ]; nSumB += pTmp[ pColor->GetBlue() ]; nSumR += ( pTmp = pKoeff[ 7 ] )[ ( ++pColor )->GetRed() ]; nSumG += pTmp[ pColor->GetGreen() ]; nSumB += pTmp[ pColor->GetBlue() ]; nSumR += ( pTmp = pKoeff[ 8 ] )[ ( ++pColor )->GetRed() ]; nSumG += pTmp[ pColor->GetGreen() ]; nSumB += pTmp[ pColor->GetBlue() ]; // calculate destination color pWriteAcc->SetPixel( nY, nX, BitmapColor( (sal_uInt8) MinMax( nSumR / nDivisor, 0, 255 ), (sal_uInt8) MinMax( nSumG / nDivisor, 0, 255 ), (sal_uInt8) MinMax( nSumB / nDivisor, 0, 255 ) ) ); } if( ++nY < nHeight ) { if( pRowTmp1 == pColRow1 ) pRowTmp1 = pColRow2, pRowTmp2 = pColRow3, pRowTmp3 = pColRow1; else if( pRowTmp1 == pColRow2 ) pRowTmp1 = pColRow3, pRowTmp2 = pColRow1, pRowTmp3 = pColRow2; else pRowTmp1 = pColRow1, pRowTmp2 = pColRow2, pRowTmp3 = pColRow3; for( i = 0; i < nWidth2; i++ ) pRowTmp3[ i ] = pReadAcc->GetColor( pRows[ nY + 2 ], pColm[ i ] ); } } delete[] pKoeff; delete[] (sal_uInt8*) pColRow1; delete[] (sal_uInt8*) pColRow2; delete[] (sal_uInt8*) pColRow3; delete[] pColm; delete[] pRows; aNewBmp.ReleaseAccess( pWriteAcc ); bRet = sal_True; } ReleaseAccess( pReadAcc ); if( bRet ) { const MapMode aMap( maPrefMapMode ); const Size aSize( maPrefSize ); *this = aNewBmp; maPrefMapMode = aMap; maPrefSize = aSize; } } return bRet; } // ----------------------------------------------------------------------------- sal_Bool Bitmap::ImplMedianFilter( const BmpFilterParam* /*pFilterParam*/, const Link* /*pProgress*/ ) { BitmapReadAccess* pReadAcc = AcquireReadAccess(); sal_Bool bRet = sal_False; if( pReadAcc ) { Bitmap aNewBmp( GetSizePixel(), 24 ); BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess(); if( pWriteAcc ) { const long nWidth = pWriteAcc->Width(), nWidth2 = nWidth + 2; const long nHeight = pWriteAcc->Height(), nHeight2 = nHeight + 2; long* pColm = new long[ nWidth2 ]; long* pRows = new long[ nHeight2 ]; BitmapColor* pColRow1 = (BitmapColor*) new sal_uInt8[ sizeof( BitmapColor ) * nWidth2 ]; BitmapColor* pColRow2 = (BitmapColor*) new sal_uInt8[ sizeof( BitmapColor ) * nWidth2 ]; BitmapColor* pColRow3 = (BitmapColor*) new sal_uInt8[ sizeof( BitmapColor ) * nWidth2 ]; BitmapColor* pRowTmp1 = pColRow1; BitmapColor* pRowTmp2 = pColRow2; BitmapColor* pRowTmp3 = pColRow3; BitmapColor* pColor; long nY, nX, i; long nR1, nR2, nR3, nR4, nR5, nR6, nR7, nR8, nR9; long nG1, nG2, nG3, nG4, nG5, nG6, nG7, nG8, nG9; long nB1, nB2, nB3, nB4, nB5, nB6, nB7, nB8, nB9; // create column LUT for( i = 0; i < nWidth2; i++ ) pColm[ i ] = ( i > 0 ) ? ( i - 1 ) : 0; pColm[ nWidth + 1 ] = pColm[ nWidth ]; // create row LUT for( i = 0; i < nHeight2; i++ ) pRows[ i ] = ( i > 0 ) ? ( i - 1 ) : 0; pRows[ nHeight + 1 ] = pRows[ nHeight ]; // read first three rows of bitmap color if (nHeight2 > 2) { for( i = 0; i < nWidth2; i++ ) { pColRow1[ i ] = pReadAcc->GetColor( pRows[ 0 ], pColm[ i ] ); pColRow2[ i ] = pReadAcc->GetColor( pRows[ 1 ], pColm[ i ] ); pColRow3[ i ] = pReadAcc->GetColor( pRows[ 2 ], pColm[ i ] ); } } // do median filtering for( nY = 0; nY < nHeight; ) { for( nX = 0; nX < nWidth; nX++ ) { nR1 = ( pColor = pRowTmp1 + nX )->GetRed(), nG1 = pColor->GetGreen(), nB1 = pColor->GetBlue(); nR2 = ( ++pColor )->GetRed(), nG2 = pColor->GetGreen(), nB2 = pColor->GetBlue(); nR3 = ( ++pColor )->GetRed(), nG3 = pColor->GetGreen(), nB3 = pColor->GetBlue(); nR4 = ( pColor = pRowTmp2 + nX )->GetRed(), nG4 = pColor->GetGreen(), nB4 = pColor->GetBlue(); nR5 = ( ++pColor )->GetRed(), nG5 = pColor->GetGreen(), nB5 = pColor->GetBlue(); nR6 = ( ++pColor )->GetRed(), nG6 = pColor->GetGreen(), nB6 = pColor->GetBlue(); nR7 = ( pColor = pRowTmp3 + nX )->GetRed(), nG7 = pColor->GetGreen(), nB7 = pColor->GetBlue(); nR8 = ( ++pColor )->GetRed(), nG8 = pColor->GetGreen(), nB8 = pColor->GetBlue(); nR9 = ( ++pColor )->GetRed(), nG9 = pColor->GetGreen(), nB9 = pColor->GetBlue(); MNMX6( nR1, nR2, nR3, nR4, nR5, nR6 ); MNMX5( nR7, nR2, nR3, nR4, nR5 ); MNMX4( nR8, nR2, nR3, nR4 ); MNMX3( nR9, nR2, nR3 ); MNMX6( nG1, nG2, nG3, nG4, nG5, nG6 ); MNMX5( nG7, nG2, nG3, nG4, nG5 ); MNMX4( nG8, nG2, nG3, nG4 ); MNMX3( nG9, nG2, nG3 ); MNMX6( nB1, nB2, nB3, nB4, nB5, nB6 ); MNMX5( nB7, nB2, nB3, nB4, nB5 ); MNMX4( nB8, nB2, nB3, nB4 ); MNMX3( nB9, nB2, nB3 ); // set destination color pWriteAcc->SetPixel( nY, nX, BitmapColor( (sal_uInt8) nR2, (sal_uInt8) nG2, (sal_uInt8) nB2 ) ); } if( ++nY < nHeight ) { if( pRowTmp1 == pColRow1 ) pRowTmp1 = pColRow2, pRowTmp2 = pColRow3, pRowTmp3 = pColRow1; else if( pRowTmp1 == pColRow2 ) pRowTmp1 = pColRow3, pRowTmp2 = pColRow1, pRowTmp3 = pColRow2; else pRowTmp1 = pColRow1, pRowTmp2 = pColRow2, pRowTmp3 = pColRow3; for( i = 0; i < nWidth2; i++ ) pRowTmp3[ i ] = pReadAcc->GetColor( pRows[ nY + 2 ], pColm[ i ] ); } } delete[] (sal_uInt8*) pColRow1; delete[] (sal_uInt8*) pColRow2; delete[] (sal_uInt8*) pColRow3; delete[] pColm; delete[] pRows; aNewBmp.ReleaseAccess( pWriteAcc ); bRet = sal_True; } ReleaseAccess( pReadAcc ); if( bRet ) { const MapMode aMap( maPrefMapMode ); const Size aSize( maPrefSize ); *this = aNewBmp; maPrefMapMode = aMap; maPrefSize = aSize; } } return bRet; } // ----------------------------------------------------------------------------- sal_Bool Bitmap::ImplSobelGrey( const BmpFilterParam* /*pFilterParam*/, const Link* /*pProgress*/ ) { sal_Bool bRet = ImplMakeGreyscales( 256 ); if( bRet ) { bRet = sal_False; BitmapReadAccess* pReadAcc = AcquireReadAccess(); if( pReadAcc ) { Bitmap aNewBmp( GetSizePixel(), 8, &pReadAcc->GetPalette() ); BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess(); if( pWriteAcc ) { BitmapColor aGrey( (sal_uInt8) 0 ); const long nWidth = pWriteAcc->Width(); const long nHeight = pWriteAcc->Height(); const long nMask111 = -1, nMask121 = 0, nMask131 = 1; const long nMask211 = -2, nMask221 = 0, nMask231 = 2; const long nMask311 = -1, nMask321 = 0, nMask331 = 1; const long nMask112 = 1, nMask122 = 2, nMask132 = 1; const long nMask212 = 0, nMask222 = 0, nMask232 = 0; const long nMask312 = -1, nMask322 = -2, nMask332 = -1; long nGrey11, nGrey12, nGrey13; long nGrey21, nGrey22, nGrey23; long nGrey31, nGrey32, nGrey33; long* pHMap = new long[ nWidth + 2 ]; long* pVMap = new long[ nHeight + 2 ]; long nX, nY, nSum1, nSum2; // fill mapping tables pHMap[ 0 ] = 0; for( nX = 1; nX <= nWidth; nX++ ) pHMap[ nX ] = nX - 1; pHMap[ nWidth + 1 ] = nWidth - 1; pVMap[ 0 ] = 0; for( nY = 1; nY <= nHeight; nY++ ) pVMap[ nY ] = nY - 1; pVMap[ nHeight + 1 ] = nHeight - 1; for( nY = 0; nY < nHeight ; nY++ ) { nGrey11 = pReadAcc->GetPixel( pVMap[ nY ], pHMap[ 0 ] ).GetIndex(); nGrey12 = pReadAcc->GetPixel( pVMap[ nY ], pHMap[ 1 ] ).GetIndex(); nGrey13 = pReadAcc->GetPixel( pVMap[ nY ], pHMap[ 2 ] ).GetIndex(); nGrey21 = pReadAcc->GetPixel( pVMap[ nY + 1 ], pHMap[ 0 ] ).GetIndex(); nGrey22 = pReadAcc->GetPixel( pVMap[ nY + 1 ], pHMap[ 1 ] ).GetIndex(); nGrey23 = pReadAcc->GetPixel( pVMap[ nY + 1 ], pHMap[ 2 ] ).GetIndex(); nGrey31 = pReadAcc->GetPixel( pVMap[ nY + 2 ], pHMap[ 0 ] ).GetIndex(); nGrey32 = pReadAcc->GetPixel( pVMap[ nY + 2 ], pHMap[ 1 ] ).GetIndex(); nGrey33 = pReadAcc->GetPixel( pVMap[ nY + 2 ], pHMap[ 2 ] ).GetIndex(); for( nX = 0; nX < nWidth; nX++ ) { nSum1 = nSum2 = 0; nSum1 += nMask111 * nGrey11; nSum2 += nMask112 * nGrey11; nSum1 += nMask121 * nGrey12; nSum2 += nMask122 * nGrey12; nSum1 += nMask131 * nGrey13; nSum2 += nMask132 * nGrey13; nSum1 += nMask211 * nGrey21; nSum2 += nMask212 * nGrey21; nSum1 += nMask221 * nGrey22; nSum2 += nMask222 * nGrey22; nSum1 += nMask231 * nGrey23; nSum2 += nMask232 * nGrey23; nSum1 += nMask311 * nGrey31; nSum2 += nMask312 * nGrey31; nSum1 += nMask321 * nGrey32; nSum2 += nMask322 * nGrey32; nSum1 += nMask331 * nGrey33; nSum2 += nMask332 * nGrey33; nSum1 = (long) sqrt( (double)( nSum1 * nSum1 + nSum2 * nSum2 ) ); aGrey.SetIndex( ~(sal_uInt8) VOS_BOUND( nSum1, 0, 255 ) ); pWriteAcc->SetPixel( nY, nX, aGrey ); if( nX < ( nWidth - 1 ) ) { const long nNextX = pHMap[ nX + 3 ]; nGrey11 = nGrey12; nGrey12 = nGrey13; nGrey13 = pReadAcc->GetPixel( pVMap[ nY ], nNextX ).GetIndex(); nGrey21 = nGrey22; nGrey22 = nGrey23; nGrey23 = pReadAcc->GetPixel( pVMap[ nY + 1 ], nNextX ).GetIndex(); nGrey31 = nGrey32; nGrey32 = nGrey33; nGrey33 = pReadAcc->GetPixel( pVMap[ nY + 2 ], nNextX ).GetIndex(); } } } delete[] pHMap; delete[] pVMap; aNewBmp.ReleaseAccess( pWriteAcc ); bRet = sal_True; } ReleaseAccess( pReadAcc ); if( bRet ) { const MapMode aMap( maPrefMapMode ); const Size aSize( maPrefSize ); *this = aNewBmp; maPrefMapMode = aMap; maPrefSize = aSize; } } } return bRet; } // ----------------------------------------------------------------------------- sal_Bool Bitmap::ImplEmbossGrey( const BmpFilterParam* pFilterParam, const Link* /*pProgress*/ ) { sal_Bool bRet = ImplMakeGreyscales( 256 ); if( bRet ) { bRet = sal_False; BitmapReadAccess* pReadAcc = AcquireReadAccess(); if( pReadAcc ) { Bitmap aNewBmp( GetSizePixel(), 8, &pReadAcc->GetPalette() ); BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess(); if( pWriteAcc ) { BitmapColor aGrey( (sal_uInt8) 0 ); const long nWidth = pWriteAcc->Width(); const long nHeight = pWriteAcc->Height(); long nGrey11, nGrey12, nGrey13; long nGrey21, nGrey22, nGrey23; long nGrey31, nGrey32, nGrey33; double fAzim = ( ( pFilterParam && pFilterParam->meFilter == BMP_FILTER_EMBOSS_GREY ) ? ( pFilterParam->maEmbossAngles.mnAzimuthAngle100 * 0.01 ) : 0.0 ) * F_PI180; double fElev = ( ( pFilterParam && pFilterParam->meFilter == BMP_FILTER_EMBOSS_GREY ) ? ( pFilterParam->maEmbossAngles.mnElevationAngle100 * 0.01 ) : 90.0 ) * F_PI180; long* pHMap = new long[ nWidth + 2 ]; long* pVMap = new long[ nHeight + 2 ]; long nX, nY, nNx, nNy, nDotL; const long nLx = FRound( cos( fAzim ) * cos( fElev ) * 255.0 ); const long nLy = FRound( sin( fAzim ) * cos( fElev ) * 255.0 ); const long nLz = FRound( sin( fElev ) * 255.0 ); const long nZ2 = ( ( 6 * 255 ) / 4 ) * ( ( 6 * 255 ) / 4 ); const long nNzLz = ( ( 6 * 255 ) / 4 ) * nLz; const sal_uInt8 cLz = (sal_uInt8) VOS_BOUND( nLz, 0, 255 ); // fill mapping tables pHMap[ 0 ] = 0; for( nX = 1; nX <= nWidth; nX++ ) pHMap[ nX ] = nX - 1; pHMap[ nWidth + 1 ] = nWidth - 1; pVMap[ 0 ] = 0; for( nY = 1; nY <= nHeight; nY++ ) pVMap[ nY ] = nY - 1; pVMap[ nHeight + 1 ] = nHeight - 1; for( nY = 0; nY < nHeight ; nY++ ) { nGrey11 = pReadAcc->GetPixel( pVMap[ nY ], pHMap[ 0 ] ).GetIndex(); nGrey12 = pReadAcc->GetPixel( pVMap[ nY ], pHMap[ 1 ] ).GetIndex(); nGrey13 = pReadAcc->GetPixel( pVMap[ nY ], pHMap[ 2 ] ).GetIndex(); nGrey21 = pReadAcc->GetPixel( pVMap[ nY + 1 ], pHMap[ 0 ] ).GetIndex(); nGrey22 = pReadAcc->GetPixel( pVMap[ nY + 1 ], pHMap[ 1 ] ).GetIndex(); nGrey23 = pReadAcc->GetPixel( pVMap[ nY + 1 ], pHMap[ 2 ] ).GetIndex(); nGrey31 = pReadAcc->GetPixel( pVMap[ nY + 2 ], pHMap[ 0 ] ).GetIndex(); nGrey32 = pReadAcc->GetPixel( pVMap[ nY + 2 ], pHMap[ 1 ] ).GetIndex(); nGrey33 = pReadAcc->GetPixel( pVMap[ nY + 2 ], pHMap[ 2 ] ).GetIndex(); for( nX = 0; nX < nWidth; nX++ ) { nNx = nGrey11 + nGrey21 + nGrey31 - nGrey13 - nGrey23 - nGrey33; nNy = nGrey31 + nGrey32 + nGrey33 - nGrey11 - nGrey12 - nGrey13; if( !nNx && !nNy ) aGrey.SetIndex( cLz ); else if( ( nDotL = nNx * nLx + nNy * nLy +nNzLz ) < 0 ) aGrey.SetIndex( 0 ); else { const double fGrey = nDotL / sqrt( (double)(nNx * nNx + nNy * nNy + nZ2) ); aGrey.SetIndex( (sal_uInt8) VOS_BOUND( fGrey, 0, 255 ) ); } pWriteAcc->SetPixel( nY, nX, aGrey ); if( nX < ( nWidth - 1 ) ) { const long nNextX = pHMap[ nX + 3 ]; nGrey11 = nGrey12; nGrey12 = nGrey13; nGrey13 = pReadAcc->GetPixel( pVMap[ nY ], nNextX ).GetIndex(); nGrey21 = nGrey22; nGrey22 = nGrey23; nGrey23 = pReadAcc->GetPixel( pVMap[ nY + 1 ], nNextX ).GetIndex(); nGrey31 = nGrey32; nGrey32 = nGrey33; nGrey33 = pReadAcc->GetPixel( pVMap[ nY + 2 ], nNextX ).GetIndex(); } } } delete[] pHMap; delete[] pVMap; aNewBmp.ReleaseAccess( pWriteAcc ); bRet = sal_True; } ReleaseAccess( pReadAcc ); if( bRet ) { const MapMode aMap( maPrefMapMode ); const Size aSize( maPrefSize ); *this = aNewBmp; maPrefMapMode = aMap; maPrefSize = aSize; } } } return bRet; } // ----------------------------------------------------------------------------- sal_Bool Bitmap::ImplSolarize( const BmpFilterParam* pFilterParam, const Link* /*pProgress*/ ) { sal_Bool bRet = sal_False; BitmapWriteAccess* pWriteAcc = AcquireWriteAccess(); if( pWriteAcc ) { const sal_uInt8 cThreshold = ( pFilterParam && pFilterParam->meFilter == BMP_FILTER_SOLARIZE ) ? pFilterParam->mcSolarGreyThreshold : 128; if( pWriteAcc->HasPalette() ) { const BitmapPalette& rPal = pWriteAcc->GetPalette(); for( sal_uInt16 i = 0, nCount = rPal.GetEntryCount(); i < nCount; i++ ) { if( rPal[ i ].GetLuminance() >= cThreshold ) { BitmapColor aCol( rPal[ i ] ); pWriteAcc->SetPaletteColor( i, aCol.Invert() ); } } } else { BitmapColor aCol; const long nWidth = pWriteAcc->Width(); const long nHeight = pWriteAcc->Height(); for( long nY = 0; nY < nHeight ; nY++ ) { for( long nX = 0; nX < nWidth; nX++ ) { aCol = pWriteAcc->GetPixel( nY, nX ); if( aCol.GetLuminance() >= cThreshold ) pWriteAcc->SetPixel( nY, nX, aCol.Invert() ); } } } ReleaseAccess( pWriteAcc ); bRet = sal_True; } return bRet; } // ----------------------------------------------------------------------------- sal_Bool Bitmap::ImplSepia( const BmpFilterParam* pFilterParam, const Link* /*pProgress*/ ) { BitmapReadAccess* pReadAcc = AcquireReadAccess(); sal_Bool bRet = sal_False; if( pReadAcc ) { long nSepiaPercent = ( pFilterParam && pFilterParam->meFilter == BMP_FILTER_SEPIA ) ? pFilterParam->mcSolarGreyThreshold : 10; const long nSepia = 10000 - 100 * VOS_BOUND( nSepiaPercent, 0, 100 ); BitmapPalette aSepiaPal( 256 ); DBG_ASSERT( nSepiaPercent <= 100, "Bitmap::ImplSepia(): sepia value out of range; defaulting to 100%" ); for( sal_uInt16 i = 0; i < 256; i++ ) { BitmapColor& rCol = aSepiaPal[ i ]; const sal_uInt8 cSepiaValue = (sal_uInt8) ( ( nSepia * i ) / 10000 ); rCol.SetRed( (sal_uInt8) i ); rCol.SetGreen( cSepiaValue ); rCol.SetBlue( cSepiaValue ); } Bitmap aNewBmp( GetSizePixel(), 8, &aSepiaPal ); BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess(); if( pWriteAcc ) { BitmapColor aCol( (sal_uInt8) 0 ); const long nWidth = pWriteAcc->Width(); const long nHeight = pWriteAcc->Height(); if( pReadAcc->HasPalette() ) { for( long nY = 0; nY < nHeight ; nY++ ) { const sal_uInt16 nPalCount = pReadAcc->GetPaletteEntryCount(); sal_uInt8* pIndexMap = new sal_uInt8[ nPalCount ]; for( sal_uInt16 i = 0; i < nPalCount; i++ ) pIndexMap[ i ] = pReadAcc->GetPaletteColor( i ).GetLuminance(); for( long nX = 0; nX < nWidth; nX++ ) { aCol.SetIndex( pIndexMap[ pReadAcc->GetPixel( nY, nX ).GetIndex() ] ); pWriteAcc->SetPixel( nY, nX, aCol ); } delete[] pIndexMap; } } else { for( long nY = 0; nY < nHeight ; nY++ ) { for( long nX = 0; nX < nWidth; nX++ ) { aCol.SetIndex( pReadAcc->GetPixel( nY, nX ).GetLuminance() ); pWriteAcc->SetPixel( nY, nX, aCol ); } } } aNewBmp.ReleaseAccess( pWriteAcc ); bRet = sal_True; } ReleaseAccess( pReadAcc ); if( bRet ) { const MapMode aMap( maPrefMapMode ); const Size aSize( maPrefSize ); *this = aNewBmp; maPrefMapMode = aMap; maPrefSize = aSize; } } return bRet; } // ----------------------------------------------------------------------------- sal_Bool Bitmap::ImplMosaic( const BmpFilterParam* pFilterParam, const Link* /*pProgress*/ ) { sal_uLong nTileWidth = ( pFilterParam && pFilterParam->meFilter == BMP_FILTER_MOSAIC ) ? pFilterParam->maMosaicTileSize.mnTileWidth : 4; sal_uLong nTileHeight = ( pFilterParam && pFilterParam->meFilter == BMP_FILTER_MOSAIC ) ? pFilterParam->maMosaicTileSize.mnTileHeight : 4; sal_Bool bRet = sal_False; if( !nTileWidth ) nTileWidth = 1; if( !nTileHeight ) nTileHeight = 1; if( nTileWidth > 1 || nTileHeight > 1 ) { Bitmap* pNewBmp; BitmapReadAccess* pReadAcc; BitmapWriteAccess* pWriteAcc; if( GetBitCount() > 8 ) { pNewBmp = NULL; pReadAcc = pWriteAcc = AcquireWriteAccess(); } else { pNewBmp = new Bitmap( GetSizePixel(), 24 ); pReadAcc = AcquireReadAccess(); pWriteAcc = pNewBmp->AcquireWriteAccess(); } if( pReadAcc && pWriteAcc ) { BitmapColor aCol; long nWidth = pReadAcc->Width(); long nHeight = pReadAcc->Height(); long nX, nY, nX1, nX2, nY1, nY2, nSumR, nSumG, nSumB; double fArea_1; nY1 = 0; nY2 = nTileHeight - 1; if( nY2 >= nHeight ) nY2 = nHeight - 1; do { nX1 = 0; nX2 = nTileWidth - 1; if( nX2 >= nWidth ) nX2 = nWidth - 1; fArea_1 = 1.0 / ( ( nX2 - nX1 + 1 ) * ( nY2 - nY1 + 1 ) ); if( !pNewBmp ) { do { for( nY = nY1, nSumR = nSumG = nSumB = 0; nY <= nY2; nY++ ) { for( nX = nX1; nX <= nX2; nX++ ) { aCol = pReadAcc->GetPixel( nY, nX ); nSumR += aCol.GetRed(); nSumG += aCol.GetGreen(); nSumB += aCol.GetBlue(); } } aCol.SetRed( (sal_uInt8) ( nSumR * fArea_1 ) ); aCol.SetGreen( (sal_uInt8) ( nSumG * fArea_1 ) ); aCol.SetBlue( (sal_uInt8) ( nSumB * fArea_1 ) ); for( nY = nY1; nY <= nY2; nY++ ) for( nX = nX1; nX <= nX2; nX++ ) pWriteAcc->SetPixel( nY, nX, aCol ); nX1 += nTileWidth; nX2 += nTileWidth; if( nX2 >= nWidth ) { nX2 = nWidth - 1; fArea_1 = 1.0 / ( ( nX2 - nX1 + 1 ) * ( nY2 - nY1 + 1 ) ); } } while( nX1 < nWidth ); } else { do { for( nY = nY1, nSumR = nSumG = nSumB = 0; nY <= nY2; nY++ ) { for( nX = nX1; nX <= nX2; nX++ ) { const BitmapColor& rCol = pReadAcc->GetPaletteColor( (sal_uInt8) pReadAcc->GetPixel( nY, nX ) ); nSumR += rCol.GetRed(); nSumG += rCol.GetGreen(); nSumB += rCol.GetBlue(); } } aCol.SetRed( (sal_uInt8) ( nSumR * fArea_1 ) ); aCol.SetGreen( (sal_uInt8) ( nSumG * fArea_1 ) ); aCol.SetBlue( (sal_uInt8) ( nSumB * fArea_1 ) ); for( nY = nY1; nY <= nY2; nY++ ) for( nX = nX1; nX <= nX2; nX++ ) pWriteAcc->SetPixel( nY, nX, aCol ); nX1 += nTileWidth; nX2 += nTileWidth; if( nX2 >= nWidth ) { nX2 = nWidth - 1; fArea_1 = 1.0 / ( ( nX2 - nX1 + 1 ) * ( nY2 - nY1 + 1 ) ); } } while( nX1 < nWidth ); } nY1 += nTileHeight; nY2 += nTileHeight; if( nY2 >= nHeight ) nY2 = nHeight - 1; } while( nY1 < nHeight ); bRet = sal_True; } ReleaseAccess( pReadAcc ); if( pNewBmp ) { pNewBmp->ReleaseAccess( pWriteAcc ); if( bRet ) { const MapMode aMap( maPrefMapMode ); const Size aSize( maPrefSize ); *this = *pNewBmp; maPrefMapMode = aMap; maPrefSize = aSize; } delete pNewBmp; } } else bRet = sal_True; return bRet; } // ----------------------------------------------------------------------------- struct PopArtEntry { sal_uInt32 mnIndex; sal_uInt32 mnCount; }; // ------------------------------------------------------------------------ extern "C" int __LOADONCALLAPI ImplPopArtCmpFnc( const void* p1, const void* p2 ) { int nRet; if( ( (PopArtEntry*) p1 )->mnCount < ( (PopArtEntry*) p2 )->mnCount ) nRet = 1; else if( ( (PopArtEntry*) p1 )->mnCount == ( (PopArtEntry*) p2 )->mnCount ) nRet = 0; else nRet = -1; return nRet; } // ------------------------------------------------------------------------ sal_Bool Bitmap::ImplPopArt( const BmpFilterParam* /*pFilterParam*/, const Link* /*pProgress*/ ) { sal_Bool bRet = ( GetBitCount() > 8 ) ? Convert( BMP_CONVERSION_8BIT_COLORS ) : sal_True; if( bRet ) { bRet = sal_False; BitmapWriteAccess* pWriteAcc = AcquireWriteAccess(); if( pWriteAcc ) { const long nWidth = pWriteAcc->Width(); const long nHeight = pWriteAcc->Height(); const sal_uLong nEntryCount = 1 << pWriteAcc->GetBitCount(); sal_uLong n; PopArtEntry* pPopArtTable = new PopArtEntry[ nEntryCount ]; for( n = 0; n < nEntryCount; n++ ) { PopArtEntry& rEntry = pPopArtTable[ n ]; rEntry.mnIndex = (sal_uInt16) n; rEntry.mnCount = 0; } // get pixel count for each palette entry for( long nY = 0; nY < nHeight ; nY++ ) for( long nX = 0; nX < nWidth; nX++ ) pPopArtTable[ pWriteAcc->GetPixel( nY, nX ).GetIndex() ].mnCount++; // sort table qsort( pPopArtTable, nEntryCount, sizeof( PopArtEntry ), ImplPopArtCmpFnc ); // get last used entry sal_uLong nFirstEntry; sal_uLong nLastEntry = 0; for( n = 0; n < nEntryCount; n++ ) if( pPopArtTable[ n ].mnCount ) nLastEntry = n; // rotate palette (one entry) const BitmapColor aFirstCol( pWriteAcc->GetPaletteColor( sal::static_int_cast(pPopArtTable[ 0 ].mnIndex) ) ); for( nFirstEntry = 0; nFirstEntry < nLastEntry; nFirstEntry++ ) { pWriteAcc->SetPaletteColor( sal::static_int_cast(pPopArtTable[ nFirstEntry ].mnIndex), pWriteAcc->GetPaletteColor( sal::static_int_cast(pPopArtTable[ nFirstEntry + 1 ].mnIndex) ) ); } pWriteAcc->SetPaletteColor( sal::static_int_cast(pPopArtTable[ nLastEntry ].mnIndex), aFirstCol ); // cleanup delete[] pPopArtTable; ReleaseAccess( pWriteAcc ); bRet = sal_True; } } return bRet; }