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-rw-r--r--vcl/source/gdi/bitmap4.cxx1011
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diff --git a/vcl/source/gdi/bitmap4.cxx b/vcl/source/gdi/bitmap4.cxx
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+++ b/vcl/source/gdi/bitmap4.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_vcl.hxx"
+
+#include <stdlib.h>
+#include <vcl/bmpacc.hxx>
+#include <vcl/bitmap.hxx>
+
+// -----------
+// - 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:
+ OSL_FAIL( "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) SAL_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) SAL_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) SAL_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 * SAL_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<sal_uInt16>(pPopArtTable[ 0 ].mnIndex) ) );
+ for( nFirstEntry = 0; nFirstEntry < nLastEntry; nFirstEntry++ )
+ {
+ pWriteAcc->SetPaletteColor( sal::static_int_cast<sal_uInt16>(pPopArtTable[ nFirstEntry ].mnIndex),
+ pWriteAcc->GetPaletteColor( sal::static_int_cast<sal_uInt16>(pPopArtTable[ nFirstEntry + 1 ].mnIndex) ) );
+ }
+ pWriteAcc->SetPaletteColor( sal::static_int_cast<sal_uInt16>(pPopArtTable[ nLastEntry ].mnIndex), aFirstCol );
+
+ // cleanup
+ delete[] pPopArtTable;
+ ReleaseAccess( pWriteAcc );
+ bRet = sal_True;
+ }
+ }
+
+ return bRet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-06 10:48:42 +0000