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-rw-r--r--vcl/source/gdi/bitmap3.cxx1146
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diff --git a/vcl/source/gdi/bitmap3.cxx b/vcl/source/gdi/bitmap3.cxx
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+++ b/vcl/source/gdi/bitmap3.cxx
@@ -0,0 +1,1146 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * 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 .
+ */
+
+#include <math.h>
+
+#include <vcl/bitmapaccess.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/bitmap.hxx>
+#include <config_features.h>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+#include <tools/helpers.hxx>
+#if HAVE_FEATURE_OPENGL
+#include <vcl/opengl/OpenGLHelper.hxx>
+#endif
+#if HAVE_FEATURE_SKIA
+#include <vcl/skia/SkiaHelper.hxx>
+#endif
+#include <vcl/BitmapMonochromeFilter.hxx>
+
+#include <BitmapScaleSuperFilter.hxx>
+#include <BitmapScaleConvolutionFilter.hxx>
+#include <BitmapFastScaleFilter.hxx>
+#include <BitmapInterpolateScaleFilter.hxx>
+#include <bitmapwriteaccess.hxx>
+#include <bitmap/impoctree.hxx>
+#include <bitmap/Octree.hxx>
+#include <svdata.hxx>
+#include <salinst.hxx>
+#include <salbmp.hxx>
+
+#include "impvect.hxx"
+
+#include <memory>
+
+#define GAMMA( _def_cVal, _def_InvGamma ) (static_cast<sal_uInt8>(MinMax(FRound(pow( _def_cVal/255.0,_def_InvGamma)*255.0),0,255)))
+
+#define CALC_ERRORS \
+ nTemp = p1T[nX++] >> 12; \
+ nBErr = MinMax( nTemp, 0, 255 ); \
+ nBErr = nBErr - FloydIndexMap[ nBC = FloydMap[nBErr] ]; \
+ nTemp = p1T[nX++] >> 12; \
+ nGErr = MinMax( nTemp, 0, 255 ); \
+ nGErr = nGErr - FloydIndexMap[ nGC = FloydMap[nGErr] ]; \
+ nTemp = p1T[nX] >> 12; \
+ nRErr = MinMax( nTemp, 0, 255 ); \
+ nRErr = nRErr - FloydIndexMap[ nRC = FloydMap[nRErr] ];
+
+#define CALC_TABLES3 \
+ p2T[nX++] += FloydError3[nBErr]; \
+ p2T[nX++] += FloydError3[nGErr]; \
+ p2T[nX++] += FloydError3[nRErr];
+
+#define CALC_TABLES5 \
+ p2T[nX++] += FloydError5[nBErr]; \
+ p2T[nX++] += FloydError5[nGErr]; \
+ p2T[nX++] += FloydError5[nRErr];
+
+#define CALC_TABLES7 \
+ p1T[++nX] += FloydError7[nBErr]; \
+ p2T[nX++] += FloydError1[nBErr]; \
+ p1T[nX] += FloydError7[nGErr]; \
+ p2T[nX++] += FloydError1[nGErr]; \
+ p1T[nX] += FloydError7[nRErr]; \
+ p2T[nX] += FloydError1[nRErr];
+
+const extern sal_uLong nVCLRLut[ 6 ] = { 16, 17, 18, 19, 20, 21 };
+const extern sal_uLong nVCLGLut[ 6 ] = { 0, 6, 12, 18, 24, 30 };
+const extern sal_uLong nVCLBLut[ 6 ] = { 0, 36, 72, 108, 144, 180 };
+
+const extern sal_uLong nVCLDitherLut[ 256 ] =
+{
+ 0, 49152, 12288, 61440, 3072, 52224, 15360, 64512, 768, 49920, 13056,
+ 62208, 3840, 52992, 16128, 65280, 32768, 16384, 45056, 28672, 35840, 19456,
+ 48128, 31744, 33536, 17152, 45824, 29440, 36608, 20224, 48896, 32512, 8192,
+ 57344, 4096, 53248, 11264, 60416, 7168, 56320, 8960, 58112, 4864, 54016,
+ 12032, 61184, 7936, 57088, 40960, 24576, 36864, 20480, 44032, 27648, 39936,
+ 23552, 41728, 25344, 37632, 21248, 44800, 28416, 40704, 24320, 2048, 51200,
+ 14336, 63488, 1024, 50176, 13312, 62464, 2816, 51968, 15104, 64256, 1792,
+ 50944, 14080, 63232, 34816, 18432, 47104, 30720, 33792, 17408, 46080, 29696,
+ 35584, 19200, 47872, 31488, 34560, 18176, 46848, 30464, 10240, 59392, 6144,
+ 55296, 9216, 58368, 5120, 54272, 11008, 60160, 6912, 56064, 9984, 59136,
+ 5888, 55040, 43008, 26624, 38912, 22528, 41984, 25600, 37888, 21504, 43776,
+ 27392, 39680, 23296, 42752, 26368, 38656, 22272, 512, 49664, 12800, 61952,
+ 3584, 52736, 15872, 65024, 256, 49408, 12544, 61696, 3328, 52480, 15616,
+ 64768, 33280, 16896, 45568, 29184, 36352, 19968, 48640, 32256, 33024, 16640,
+ 45312, 28928, 36096, 19712, 48384, 32000, 8704, 57856, 4608, 53760, 11776,
+ 60928, 7680, 56832, 8448, 57600, 4352, 53504, 11520, 60672, 7424, 56576,
+ 41472, 25088, 37376, 20992, 44544, 28160, 40448, 24064, 41216, 24832, 37120,
+ 20736, 44288, 27904, 40192, 23808, 2560, 51712, 14848, 64000, 1536, 50688,
+ 13824, 62976, 2304, 51456, 14592, 63744, 1280, 50432, 13568, 62720, 35328,
+ 18944, 47616, 31232, 34304, 17920, 46592, 30208, 35072, 18688, 47360, 30976,
+ 34048, 17664, 46336, 29952, 10752, 59904, 6656, 55808, 9728, 58880, 5632,
+ 54784, 10496, 59648, 6400, 55552, 9472, 58624, 5376, 54528, 43520, 27136,
+ 39424, 23040, 42496, 26112, 38400, 22016, 43264, 26880, 39168, 22784, 42240,
+ 25856, 38144, 21760
+};
+
+const extern sal_uLong nVCLLut[ 256 ] =
+{
+ 0, 1286, 2572, 3858, 5144, 6430, 7716, 9002,
+ 10288, 11574, 12860, 14146, 15432, 16718, 18004, 19290,
+ 20576, 21862, 23148, 24434, 25720, 27006, 28292, 29578,
+ 30864, 32150, 33436, 34722, 36008, 37294, 38580, 39866,
+ 41152, 42438, 43724, 45010, 46296, 47582, 48868, 50154,
+ 51440, 52726, 54012, 55298, 56584, 57870, 59156, 60442,
+ 61728, 63014, 64300, 65586, 66872, 68158, 69444, 70730,
+ 72016, 73302, 74588, 75874, 77160, 78446, 79732, 81018,
+ 82304, 83590, 84876, 86162, 87448, 88734, 90020, 91306,
+ 92592, 93878, 95164, 96450, 97736, 99022,100308,101594,
+ 102880,104166,105452,106738,108024,109310,110596,111882,
+ 113168,114454,115740,117026,118312,119598,120884,122170,
+ 123456,124742,126028,127314,128600,129886,131172,132458,
+ 133744,135030,136316,137602,138888,140174,141460,142746,
+ 144032,145318,146604,147890,149176,150462,151748,153034,
+ 154320,155606,156892,158178,159464,160750,162036,163322,
+ 164608,165894,167180,168466,169752,171038,172324,173610,
+ 174896,176182,177468,178754,180040,181326,182612,183898,
+ 185184,186470,187756,189042,190328,191614,192900,194186,
+ 195472,196758,198044,199330,200616,201902,203188,204474,
+ 205760,207046,208332,209618,210904,212190,213476,214762,
+ 216048,217334,218620,219906,221192,222478,223764,225050,
+ 226336,227622,228908,230194,231480,232766,234052,235338,
+ 236624,237910,239196,240482,241768,243054,244340,245626,
+ 246912,248198,249484,250770,252056,253342,254628,255914,
+ 257200,258486,259772,261058,262344,263630,264916,266202,
+ 267488,268774,270060,271346,272632,273918,275204,276490,
+ 277776,279062,280348,281634,282920,284206,285492,286778,
+ 288064,289350,290636,291922,293208,294494,295780,297066,
+ 298352,299638,300924,302210,303496,304782,306068,307354,
+ 308640,309926,311212,312498,313784,315070,316356,317642,
+ 318928,320214,321500,322786,324072,325358,326644,327930
+};
+
+const long FloydMap[256] =
+{
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
+};
+
+const long FloydError1[61] =
+{
+ -7680, -7424, -7168, -6912, -6656, -6400, -6144,
+ -5888, -5632, -5376, -5120, -4864, -4608, -4352,
+ -4096, -3840, -3584, -3328, -3072, -2816, -2560,
+ -2304, -2048, -1792, -1536, -1280, -1024, -768,
+ -512, -256, 0, 256, 512, 768, 1024, 1280, 1536,
+ 1792, 2048, 2304, 2560, 2816, 3072, 3328, 3584,
+ 3840, 4096, 4352, 4608, 4864, 5120, 5376, 5632,
+ 5888, 6144, 6400, 6656, 6912, 7168, 7424, 7680
+};
+
+const long FloydError3[61] =
+{
+ -23040, -22272, -21504, -20736, -19968, -19200,
+ -18432, -17664, -16896, -16128, -15360, -14592,
+ -13824, -13056, -12288, -11520, -10752, -9984,
+ -9216, -8448, -7680, -6912, -6144, -5376, -4608,
+ -3840, -3072, -2304, -1536, -768, 0, 768, 1536,
+ 2304, 3072, 3840, 4608, 5376, 6144, 6912, 7680,
+ 8448, 9216, 9984, 10752, 11520, 12288, 13056,
+ 13824, 14592, 15360, 16128, 16896, 17664, 18432,
+ 19200, 19968, 20736, 21504, 22272, 23040
+};
+
+const long FloydError5[61] =
+{
+ -38400, -37120, -35840, -34560, -33280, -32000,
+ -30720, -29440, -28160, -26880, -25600, -24320,
+ -23040, -21760, -20480, -19200, -17920, -16640,
+ -15360, -14080, -12800, -11520, -10240, -8960,
+ -7680, -6400, -5120, -3840, -2560, -1280, 0,
+ 1280, 2560, 3840, 5120, 6400, 7680, 8960, 10240,
+ 11520, 12800, 14080, 15360, 16640, 17920, 19200,
+ 20480, 21760, 23040, 24320, 25600, 26880, 28160,
+ 29440, 30720, 32000, 33280, 34560, 35840, 37120,
+ 38400
+};
+
+const long FloydError7[61] =
+{
+ -53760, -51968, -50176, -48384, -46592, -44800,
+ -43008, -41216, -39424, -37632, -35840, -34048,
+ -32256, -30464, -28672, -26880, -25088, -23296,
+ -21504, -19712, -17920, -16128, -14336, -12544,
+ -10752, -8960, -7168, -5376, -3584, -1792, 0,
+ 1792, 3584, 5376, 7168, 8960, 10752, 12544, 14336,
+ 16128, 17920, 19712, 21504, 23296, 25088, 26880,
+ 28672, 30464, 32256, 34048, 35840, 37632, 39424,
+ 41216, 43008, 44800, 46592, 48384, 50176, 51968,
+ 53760
+};
+
+const long FloydIndexMap[6] =
+{
+ -30, 21, 72, 123, 174, 225
+};
+
+bool Bitmap::Convert( BmpConversion eConversion )
+{
+ // try to convert in backend
+ if (mxSalBmp)
+ {
+ // avoid large chunk of obsolete and hopefully rarely used conversions.
+ if (eConversion == BmpConversion::N8BitNoConversion)
+ {
+ std::shared_ptr<SalBitmap> xImpBmp(ImplGetSVData()->mpDefInst->CreateSalBitmap());
+ // frequently used conversion for creating alpha masks
+ if (xImpBmp->Create(*mxSalBmp) && xImpBmp->InterpretAs8Bit())
+ {
+ ImplSetSalBitmap(xImpBmp);
+ SAL_INFO( "vcl.opengl", "Ref count: " << mxSalBmp.use_count() );
+ return true;
+ }
+ }
+ if (eConversion == BmpConversion::N8BitGreys)
+ {
+ std::shared_ptr<SalBitmap> xImpBmp(ImplGetSVData()->mpDefInst->CreateSalBitmap());
+ if (xImpBmp->Create(*mxSalBmp) && xImpBmp->ConvertToGreyscale())
+ {
+ ImplSetSalBitmap(xImpBmp);
+ SAL_INFO( "vcl.opengl", "Ref count: " << mxSalBmp.use_count() );
+ return true;
+ }
+ }
+ }
+
+ const sal_uInt16 nBitCount = GetBitCount ();
+ bool bRet = false;
+
+ switch( eConversion )
+ {
+ case BmpConversion::N1BitThreshold:
+ {
+ BitmapEx aBmpEx(*this);
+ bRet = BitmapFilter::Filter(aBmpEx, BitmapMonochromeFilter(128));
+ *this = aBmpEx.GetBitmap();
+ }
+ break;
+
+ case BmpConversion::N4BitGreys:
+ bRet = ImplMakeGreyscales( 16 );
+ break;
+
+ case BmpConversion::N4BitColors:
+ {
+ if( nBitCount < 4 )
+ bRet = ImplConvertUp( 4 );
+ else if( nBitCount > 4 )
+ bRet = ImplConvertDown( 4 );
+ else
+ bRet = true;
+ }
+ break;
+
+ case BmpConversion::N8BitGreys:
+ case BmpConversion::N8BitNoConversion:
+ bRet = ImplMakeGreyscales( 256 );
+ break;
+
+ case BmpConversion::N8BitColors:
+ {
+ if( nBitCount < 8 )
+ bRet = ImplConvertUp( 8 );
+ else if( nBitCount > 8 )
+ bRet = ImplConvertDown( 8 );
+ else
+ bRet = true;
+ }
+ break;
+
+ case BmpConversion::N8BitTrans:
+ {
+ Color aTrans( BMP_COL_TRANS );
+
+ if( nBitCount < 8 )
+ bRet = ImplConvertUp( 8, &aTrans );
+ else
+ bRet = ImplConvertDown( 8, &aTrans );
+ }
+ break;
+
+ case BmpConversion::N24Bit:
+ {
+ if( nBitCount < 24 )
+ bRet = ImplConvertUp( 24 );
+ else
+ bRet = true;
+ }
+ break;
+
+ case BmpConversion::N32Bit:
+ {
+ if( nBitCount < 32 )
+ bRet = ImplConvertUp( 32 );
+ else
+ bRet = true;
+ }
+ break;
+
+ default:
+ OSL_FAIL( "Bitmap::Convert(): Unsupported conversion" );
+ break;
+ }
+
+ return bRet;
+}
+
+bool Bitmap::ImplMakeGreyscales( sal_uInt16 nGreys )
+{
+ SAL_WARN_IF( nGreys != 16 && nGreys != 256, "vcl", "Only 16 or 256 greyscales are supported!" );
+
+ ScopedReadAccess pReadAcc(*this);
+ bool bRet = false;
+
+ if( pReadAcc )
+ {
+ const BitmapPalette& rPal = GetGreyPalette( nGreys );
+ sal_uLong nShift = ( ( nGreys == 16 ) ? 4UL : 0UL );
+ bool bPalDiffers = !pReadAcc->HasPalette() || ( rPal.GetEntryCount() != pReadAcc->GetPaletteEntryCount() );
+
+ if( !bPalDiffers )
+ bPalDiffers = ( rPal != pReadAcc->GetPalette() );
+
+ if( bPalDiffers )
+ {
+ Bitmap aNewBmp( GetSizePixel(), ( nGreys == 16 ) ? 4 : 8, &rPal );
+ BitmapScopedWriteAccess pWriteAcc(aNewBmp);
+
+ if( pWriteAcc )
+ {
+ const long nWidth = pWriteAcc->Width();
+ const long nHeight = pWriteAcc->Height();
+
+ if( pReadAcc->HasPalette() )
+ {
+ for( long nY = 0; nY < nHeight; nY++ )
+ {
+ Scanline pScanline = pWriteAcc->GetScanline(nY);
+ Scanline pScanlineRead = pReadAcc->GetScanline(nY);
+ for( long nX = 0; nX < nWidth; nX++ )
+ {
+ const sal_uInt8 cIndex = pReadAcc->GetIndexFromData( pScanlineRead, nX );
+ pWriteAcc->SetPixelOnData( pScanline, nX,
+ BitmapColor(pReadAcc->GetPaletteColor( cIndex ).GetLuminance() >> nShift) );
+ }
+ }
+ }
+ else if( pReadAcc->GetScanlineFormat() == ScanlineFormat::N24BitTcBgr &&
+ pWriteAcc->GetScanlineFormat() == ScanlineFormat::N8BitPal )
+ {
+ nShift += 8;
+
+ for( long nY = 0; nY < nHeight; nY++ )
+ {
+ Scanline pReadScan = pReadAcc->GetScanline( nY );
+ Scanline pWriteScan = pWriteAcc->GetScanline( nY );
+
+ for( long nX = 0; nX < nWidth; nX++ )
+ {
+ const sal_uLong nB = *pReadScan++;
+ const sal_uLong nG = *pReadScan++;
+ const sal_uLong nR = *pReadScan++;
+
+ *pWriteScan++ = static_cast<sal_uInt8>( ( nB * 28UL + nG * 151UL + nR * 77UL ) >> nShift );
+ }
+ }
+ }
+ else if( pReadAcc->GetScanlineFormat() == ScanlineFormat::N24BitTcRgb &&
+ pWriteAcc->GetScanlineFormat() == ScanlineFormat::N8BitPal )
+ {
+ nShift += 8;
+
+ for( long nY = 0; nY < nHeight; nY++ )
+ {
+ Scanline pReadScan = pReadAcc->GetScanline( nY );
+ Scanline pWriteScan = pWriteAcc->GetScanline( nY );
+
+ for( long nX = 0; nX < nWidth; nX++ )
+ {
+ const sal_uLong nR = *pReadScan++;
+ const sal_uLong nG = *pReadScan++;
+ const sal_uLong nB = *pReadScan++;
+
+ *pWriteScan++ = static_cast<sal_uInt8>( ( nB * 28UL + nG * 151UL + nR * 77UL ) >> nShift );
+ }
+ }
+ }
+ else
+ {
+ for( long nY = 0; nY < nHeight; nY++ )
+ {
+ Scanline pScanline = pWriteAcc->GetScanline(nY);
+ Scanline pScanlineRead = pReadAcc->GetScanline(nY);
+ for( long nX = 0; nX < nWidth; nX++ )
+ pWriteAcc->SetPixelOnData( pScanline, nX, BitmapColor(pReadAcc->GetPixelFromData( pScanlineRead, nX ).GetLuminance() >> nShift) );
+ }
+ }
+
+ pWriteAcc.reset();
+ bRet = true;
+ }
+
+ pReadAcc.reset();
+
+ if( bRet )
+ {
+ const MapMode aMap( maPrefMapMode );
+ const Size aSize( maPrefSize );
+
+ *this = aNewBmp;
+
+ maPrefMapMode = aMap;
+ maPrefSize = aSize;
+ }
+ }
+ else
+ {
+ pReadAcc.reset();
+ bRet = true;
+ }
+ }
+
+ return bRet;
+}
+
+bool Bitmap::ImplConvertUp(sal_uInt16 nBitCount, Color const * pExtColor)
+{
+ SAL_WARN_IF( nBitCount <= GetBitCount(), "vcl", "New BitCount must be greater!" );
+
+ Bitmap::ScopedReadAccess pReadAcc(*this);
+ bool bRet = false;
+
+ if (pReadAcc)
+ {
+ BitmapPalette aPalette;
+ Bitmap aNewBmp(GetSizePixel(), nBitCount, pReadAcc->HasPalette() ? &pReadAcc->GetPalette() : &aPalette);
+ BitmapScopedWriteAccess pWriteAcc(aNewBmp);
+
+ if (pWriteAcc)
+ {
+ const long nWidth = pWriteAcc->Width();
+ const long nHeight = pWriteAcc->Height();
+
+ if (pWriteAcc->HasPalette())
+ {
+ const BitmapPalette& rOldPalette = pReadAcc->GetPalette();
+ const sal_uInt16 nOldCount = rOldPalette.GetEntryCount();
+ assert(nOldCount <= (1 << GetBitCount()));
+
+ aPalette.SetEntryCount(1 << nBitCount);
+
+ for (sal_uInt16 i = 0; i < nOldCount; i++)
+ aPalette[i] = rOldPalette[i];
+
+ if (pExtColor)
+ aPalette[aPalette.GetEntryCount() - 1] = *pExtColor;
+
+ pWriteAcc->SetPalette(aPalette);
+
+ for (long nY = 0; nY < nHeight; nY++)
+ {
+ Scanline pScanline = pWriteAcc->GetScanline(nY);
+ Scanline pScanlineRead = pReadAcc->GetScanline(nY);
+ for (long nX = 0; nX < nWidth; nX++)
+ {
+ pWriteAcc->SetPixelOnData(pScanline, nX, pReadAcc->GetPixelFromData(pScanlineRead, nX));
+ }
+ }
+ }
+ else
+ {
+ if (pReadAcc->HasPalette())
+ {
+ for (long nY = 0; nY < nHeight; nY++)
+ {
+ Scanline pScanline = pWriteAcc->GetScanline(nY);
+ Scanline pScanlineRead = pReadAcc->GetScanline(nY);
+ for (long nX = 0; nX < nWidth; nX++)
+ {
+ pWriteAcc->SetPixelOnData(pScanline, nX, pReadAcc->GetPaletteColor(pReadAcc->GetIndexFromData(pScanlineRead, nX)));
+ }
+ }
+ }
+ else
+ {
+ for (long nY = 0; nY < nHeight; nY++)
+ {
+ Scanline pScanline = pWriteAcc->GetScanline(nY);
+ Scanline pScanlineRead = pReadAcc->GetScanline(nY);
+ for (long nX = 0; nX < nWidth; nX++)
+ {
+ pWriteAcc->SetPixelOnData(pScanline, nX, pReadAcc->GetPixelFromData(pScanlineRead, nX));
+ }
+ }
+ }
+ }
+ bRet = true;
+ }
+
+ if (bRet)
+ {
+ const MapMode aMap(maPrefMapMode);
+ const Size aSize(maPrefSize);
+
+ *this = aNewBmp;
+
+ maPrefMapMode = aMap;
+ maPrefSize = aSize;
+ }
+ }
+
+ return bRet;
+}
+
+bool Bitmap::ImplConvertDown(sal_uInt16 nBitCount, Color const * pExtColor)
+{
+ SAL_WARN_IF(nBitCount > GetBitCount(), "vcl", "New BitCount must be lower ( or equal when pExtColor is set )!");
+
+ Bitmap::ScopedReadAccess pReadAcc(*this);
+ bool bRet = false;
+
+ if (pReadAcc)
+ {
+ BitmapPalette aPalette;
+ Bitmap aNewBmp(GetSizePixel(), nBitCount, &aPalette);
+ BitmapScopedWriteAccess pWriteAcc(aNewBmp);
+
+ if (pWriteAcc)
+ {
+ const sal_uInt16 nCount = 1 << nBitCount;
+ const long nWidth = pWriteAcc->Width();
+ const long nWidth1 = nWidth - 1;
+ const long nHeight = pWriteAcc->Height();
+ Octree aOctree(*pReadAcc, pExtColor ? (nCount - 1) : nCount);
+ aPalette = aOctree.GetPalette();
+ InverseColorMap aColorMap(aPalette);
+ BitmapColor aColor;
+ ImpErrorQuad aErrQuad;
+ std::vector<ImpErrorQuad> aErrQuad1(nWidth);
+ std::vector<ImpErrorQuad> aErrQuad2(nWidth);
+ ImpErrorQuad* pQLine1 = aErrQuad1.data();
+ ImpErrorQuad* pQLine2 = nullptr;
+ long nYTmp = 0;
+ sal_uInt8 cIndex;
+ bool bQ1 = true;
+
+ if (pExtColor)
+ {
+ aPalette.SetEntryCount(aPalette.GetEntryCount() + 1);
+ aPalette[aPalette.GetEntryCount() - 1] = *pExtColor;
+ }
+
+ // set Black/White always, if we have enough space
+ if (aPalette.GetEntryCount() < (nCount - 1))
+ {
+ aPalette.SetEntryCount(aPalette.GetEntryCount() + 2);
+ aPalette[aPalette.GetEntryCount() - 2] = COL_BLACK;
+ aPalette[aPalette.GetEntryCount() - 1] = COL_WHITE;
+ }
+
+ pWriteAcc->SetPalette(aPalette);
+
+ for (long nY = 0; nY < std::min(nHeight, 2L); nY++, nYTmp++)
+ {
+ pQLine2 = !nY ? aErrQuad1.data() : aErrQuad2.data();
+ Scanline pScanlineRead = pReadAcc->GetScanline(nYTmp);
+ for (long nX = 0; nX < nWidth; nX++)
+ {
+ if (pReadAcc->HasPalette())
+ pQLine2[nX] = pReadAcc->GetPaletteColor(pReadAcc->GetIndexFromData(pScanlineRead, nX));
+ else
+ pQLine2[nX] = pReadAcc->GetPixelFromData(pScanlineRead, nX);
+ }
+ }
+
+ assert(pQLine2 || nHeight == 0);
+
+ for (long nY = 0; nY < nHeight; nY++, nYTmp++)
+ {
+ // first pixel in the line
+ cIndex = static_cast<sal_uInt8>(aColorMap.GetBestPaletteIndex(pQLine1[0].ImplGetColor()));
+ Scanline pScanline = pWriteAcc->GetScanline(nY);
+ pWriteAcc->SetPixelOnData(pScanline, 0, BitmapColor(cIndex));
+
+ long nX;
+ for (nX = 1; nX < nWidth1; nX++)
+ {
+ aColor = pQLine1[nX].ImplGetColor();
+ cIndex = static_cast<sal_uInt8>(aColorMap.GetBestPaletteIndex(aColor));
+ aErrQuad = (ImpErrorQuad(aColor) -= pWriteAcc->GetPaletteColor(cIndex));
+ pQLine1[++nX].ImplAddColorError7(aErrQuad);
+ pQLine2[nX--].ImplAddColorError1(aErrQuad);
+ pQLine2[nX--].ImplAddColorError5(aErrQuad);
+ pQLine2[nX++].ImplAddColorError3(aErrQuad);
+ pWriteAcc->SetPixelOnData(pScanline, nX, BitmapColor(cIndex));
+ }
+
+ // Last RowPixel
+ if (nX < nWidth)
+ {
+ cIndex = static_cast<sal_uInt8>(aColorMap.GetBestPaletteIndex(pQLine1[nWidth1].ImplGetColor()));
+ pWriteAcc->SetPixelOnData(pScanline, nX, BitmapColor(cIndex));
+ }
+
+ // Refill/copy row buffer
+ pQLine1 = pQLine2;
+ bQ1 = !bQ1;
+ pQLine2 = bQ1 ? aErrQuad2.data() : aErrQuad1.data();
+
+ if (nYTmp < nHeight)
+ {
+ Scanline pScanlineRead = pReadAcc->GetScanline(nYTmp);
+ for (nX = 0; nX < nWidth; nX++)
+ {
+ if (pReadAcc->HasPalette())
+ pQLine2[nX] = pReadAcc->GetPaletteColor(pReadAcc->GetIndexFromData(pScanlineRead, nX));
+ else
+ pQLine2[nX] = pReadAcc->GetPixelFromData(pScanlineRead, nX);
+ }
+ }
+ }
+
+ bRet = true;
+ }
+ pWriteAcc.reset();
+
+ if(bRet)
+ {
+ const MapMode aMap(maPrefMapMode);
+ const Size aSize(maPrefSize);
+
+ *this = aNewBmp;
+
+ maPrefMapMode = aMap;
+ maPrefSize = aSize;
+ }
+ }
+
+ return bRet;
+}
+
+bool Bitmap::Scale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag )
+{
+ if(basegfx::fTools::equalZero(rScaleX) || basegfx::fTools::equalZero(rScaleY))
+ {
+ // no scale
+ return true;
+ }
+
+ if(basegfx::fTools::equal(rScaleX, 1.0) && basegfx::fTools::equal(rScaleY, 1.0))
+ {
+ // no scale
+ return true;
+ }
+
+ const sal_uInt16 nStartCount(GetBitCount());
+
+ if (mxSalBmp && mxSalBmp->ScalingSupported())
+ {
+ // implementation specific scaling
+ std::shared_ptr<SalBitmap> xImpBmp(ImplGetSVData()->mpDefInst->CreateSalBitmap());
+ if (xImpBmp->Create(*mxSalBmp) && xImpBmp->Scale(rScaleX, rScaleY, nScaleFlag))
+ {
+ ImplSetSalBitmap(xImpBmp);
+ SAL_INFO( "vcl.opengl", "Ref count: " << mxSalBmp.use_count() );
+ maPrefMapMode = MapMode( MapUnit::MapPixel );
+ maPrefSize = xImpBmp->GetSize();
+ return true;
+ }
+ }
+
+ // fdo#33455
+ //
+ // If we start with a 1 bit image, then after scaling it in any mode except
+ // BmpScaleFlag::Fast we have a 24bit image which is perfectly correct, but we
+ // are going to down-shift it to mono again and Bitmap::MakeMonochrome just
+ // has "Bitmap aNewBmp( GetSizePixel(), 1 );" to create a 1 bit bitmap which
+ // will default to black/white and the colors mapped to which ever is closer
+ // to black/white
+ //
+ // So the easiest thing to do to retain the colors of 1 bit bitmaps is to
+ // just use the fast scale rather than attempting to count unique colors in
+ // the other converters and pass all the info down through
+ // Bitmap::MakeMonochrome
+ if (nStartCount == 1)
+ nScaleFlag = BmpScaleFlag::Fast;
+
+ BitmapEx aBmpEx(*this);
+ bool bRetval(false);
+
+ switch(nScaleFlag)
+ {
+ case BmpScaleFlag::Default:
+ if (GetSizePixel().Width() < 2 || GetSizePixel().Height() < 2)
+ bRetval = BitmapFilter::Filter(aBmpEx, BitmapFastScaleFilter(rScaleX, rScaleY));
+ else
+ bRetval = BitmapFilter::Filter(aBmpEx, BitmapScaleSuperFilter(rScaleX, rScaleY));
+ break;
+
+ case BmpScaleFlag::Fast:
+ case BmpScaleFlag::NearestNeighbor:
+ bRetval = BitmapFilter::Filter(aBmpEx, BitmapFastScaleFilter(rScaleX, rScaleY));
+ break;
+
+ case BmpScaleFlag::Interpolate:
+ bRetval = BitmapFilter::Filter(aBmpEx, BitmapInterpolateScaleFilter(rScaleX, rScaleY));
+ break;
+
+ case BmpScaleFlag::Super:
+ bRetval = BitmapFilter::Filter(aBmpEx, BitmapScaleSuperFilter(rScaleX, rScaleY));
+ break;
+ case BmpScaleFlag::BestQuality:
+ case BmpScaleFlag::Lanczos:
+ bRetval = BitmapFilter::Filter(aBmpEx, vcl::BitmapScaleLanczos3Filter(rScaleX, rScaleY));
+ break;
+
+ case BmpScaleFlag::BiCubic:
+ bRetval = BitmapFilter::Filter(aBmpEx, vcl::BitmapScaleBicubicFilter(rScaleX, rScaleY));
+ break;
+
+ case BmpScaleFlag::BiLinear:
+ bRetval = BitmapFilter::Filter(aBmpEx, vcl::BitmapScaleBilinearFilter(rScaleX, rScaleY));
+ break;
+ }
+
+ if (bRetval)
+ *this = aBmpEx.GetBitmap();
+
+ OSL_ENSURE(!bRetval || nStartCount == GetBitCount(), "Bitmap::Scale has changed the ColorDepth, this should *not* happen (!)");
+ return bRetval;
+}
+
+bool Bitmap::Scale( const Size& rNewSize, BmpScaleFlag nScaleFlag )
+{
+ const Size aSize( GetSizePixel() );
+ bool bRet;
+
+ if( aSize.Width() && aSize.Height() )
+ {
+ bRet = Scale( static_cast<double>(rNewSize.Width()) / aSize.Width(),
+ static_cast<double>(rNewSize.Height()) / aSize.Height(),
+ nScaleFlag );
+ }
+ else
+ bRet = true;
+
+ return bRet;
+}
+
+bool Bitmap::HasFastScale()
+{
+#if HAVE_FEATURE_SKIA
+ if( SkiaHelper::isVCLSkiaEnabled() && SkiaHelper::renderMethodToUse() != SkiaHelper::RenderRaster)
+ return true;
+#endif
+#if HAVE_FEATURE_OPENGL
+ if( OpenGLHelper::isVCLOpenGLEnabled())
+ return true;
+#endif
+ return false;
+}
+
+void Bitmap::AdaptBitCount(Bitmap& rNew) const
+{
+ // aNew is the result of some operation; adapt it's BitCount to the original (this)
+ if(GetBitCount() != rNew.GetBitCount())
+ {
+ switch(GetBitCount())
+ {
+ case 1:
+ {
+ rNew.Convert(BmpConversion::N1BitThreshold);
+ break;
+ }
+ case 4:
+ {
+ if(HasGreyPaletteAny())
+ {
+ rNew.Convert(BmpConversion::N4BitGreys);
+ }
+ else
+ {
+ rNew.Convert(BmpConversion::N4BitColors);
+ }
+ break;
+ }
+ case 8:
+ {
+ if(HasGreyPaletteAny())
+ {
+ rNew.Convert(BmpConversion::N8BitGreys);
+ }
+ else
+ {
+ rNew.Convert(BmpConversion::N8BitColors);
+ }
+ break;
+ }
+ case 24:
+ {
+ rNew.Convert(BmpConversion::N24Bit);
+ break;
+ }
+ case 32:
+ {
+ rNew.Convert(BmpConversion::N32Bit);
+ break;
+ }
+ default:
+ {
+ SAL_WARN("vcl", "BitDepth adaptation failed, from " << rNew.GetBitCount() << " to " << GetBitCount());
+ break;
+ }
+ }
+ }
+}
+
+bool Bitmap::Dither()
+{
+ const Size aSize( GetSizePixel() );
+
+ if( aSize.Width() == 1 || aSize.Height() == 1 )
+ return true;
+
+ bool bRet = false;
+
+ if( ( aSize.Width() > 3 ) && ( aSize.Height() > 2 ) )
+ {
+ ScopedReadAccess pReadAcc(*this);
+ Bitmap aNewBmp( GetSizePixel(), 8 );
+ BitmapScopedWriteAccess pWriteAcc(aNewBmp);
+
+ if( pReadAcc && pWriteAcc )
+ {
+ BitmapColor aColor;
+ long nWidth = pReadAcc->Width();
+ long nWidth1 = nWidth - 1;
+ long nHeight = pReadAcc->Height();
+ long nX;
+ long nW = nWidth * 3;
+ long nW2 = nW - 3;
+ long nRErr, nGErr, nBErr;
+ long nRC, nGC, nBC;
+ std::unique_ptr<long[]> p1(new long[ nW ]);
+ std::unique_ptr<long[]> p2(new long[ nW ]);
+ long* p1T = p1.get();
+ long* p2T = p2.get();
+ long* pTmp;
+ bool bPal = pReadAcc->HasPalette();
+
+ pTmp = p2T;
+
+ if( bPal )
+ {
+ Scanline pScanlineRead = pReadAcc->GetScanline(0);
+ for( long nZ = 0; nZ < nWidth; nZ++ )
+ {
+ aColor = pReadAcc->GetPaletteColor( pReadAcc->GetIndexFromData( pScanlineRead, nZ ) );
+
+ *pTmp++ = static_cast<long>(aColor.GetBlue()) << 12;
+ *pTmp++ = static_cast<long>(aColor.GetGreen()) << 12;
+ *pTmp++ = static_cast<long>(aColor.GetRed()) << 12;
+ }
+ }
+ else
+ {
+ Scanline pScanlineRead = pReadAcc->GetScanline(0);
+ for( long nZ = 0; nZ < nWidth; nZ++ )
+ {
+ aColor = pReadAcc->GetPixelFromData( pScanlineRead, nZ );
+
+ *pTmp++ = static_cast<long>(aColor.GetBlue()) << 12;
+ *pTmp++ = static_cast<long>(aColor.GetGreen()) << 12;
+ *pTmp++ = static_cast<long>(aColor.GetRed()) << 12;
+ }
+ }
+
+ for( long nY = 1, nYAcc = 0; nY <= nHeight; nY++, nYAcc++ )
+ {
+ pTmp = p1T;
+ p1T = p2T;
+ p2T = pTmp;
+
+ if( nY < nHeight )
+ {
+ if( bPal )
+ {
+ Scanline pScanlineRead = pReadAcc->GetScanline(nY);
+ for( long nZ = 0; nZ < nWidth; nZ++ )
+ {
+ aColor = pReadAcc->GetPaletteColor( pReadAcc->GetIndexFromData( pScanlineRead, nZ ) );
+
+ *pTmp++ = static_cast<long>(aColor.GetBlue()) << 12;
+ *pTmp++ = static_cast<long>(aColor.GetGreen()) << 12;
+ *pTmp++ = static_cast<long>(aColor.GetRed()) << 12;
+ }
+ }
+ else
+ {
+ Scanline pScanlineRead = pReadAcc->GetScanline(nY);
+ for( long nZ = 0; nZ < nWidth; nZ++ )
+ {
+ aColor = pReadAcc->GetPixelFromData( pScanlineRead, nZ );
+
+ *pTmp++ = static_cast<long>(aColor.GetBlue()) << 12;
+ *pTmp++ = static_cast<long>(aColor.GetGreen()) << 12;
+ *pTmp++ = static_cast<long>(aColor.GetRed()) << 12;
+ }
+ }
+ }
+
+ // Examine first Pixel separately
+ nX = 0;
+ long nTemp;
+ CALC_ERRORS;
+ CALC_TABLES7;
+ nX -= 5;
+ CALC_TABLES5;
+ Scanline pScanline = pWriteAcc->GetScanline(nYAcc);
+ pWriteAcc->SetPixelOnData( pScanline, 0, BitmapColor(static_cast<sal_uInt8>(nVCLBLut[ nBC ] + nVCLGLut[nGC ] + nVCLRLut[nRC ])) );
+
+ // Get middle Pixels using a loop
+ long nXAcc;
+ for ( nX = 3, nXAcc = 1; nX < nW2; nXAcc++ )
+ {
+ CALC_ERRORS;
+ CALC_TABLES7;
+ nX -= 8;
+ CALC_TABLES3;
+ CALC_TABLES5;
+ pWriteAcc->SetPixelOnData( pScanline, nXAcc, BitmapColor(static_cast<sal_uInt8>(nVCLBLut[ nBC ] + nVCLGLut[nGC ] + nVCLRLut[nRC ])) );
+ }
+
+ // Treat last Pixel separately
+ CALC_ERRORS;
+ nX -= 5;
+ CALC_TABLES3;
+ CALC_TABLES5;
+ pWriteAcc->SetPixelOnData( pScanline, nWidth1, BitmapColor(static_cast<sal_uInt8>(nVCLBLut[ nBC ] + nVCLGLut[nGC ] + nVCLRLut[nRC ])) );
+ }
+
+ bRet = true;
+ }
+
+ pReadAcc.reset();
+ pWriteAcc.reset();
+
+ if( bRet )
+ {
+ const MapMode aMap( maPrefMapMode );
+ const Size aPrefSize( maPrefSize );
+
+ *this = aNewBmp;
+
+ maPrefMapMode = aMap;
+ maPrefSize = aPrefSize;
+ }
+ }
+
+ return bRet;
+}
+
+void Bitmap::Vectorize( GDIMetaFile& rMtf, sal_uInt8 cReduce, const Link<long,void>* pProgress )
+{
+ ImplVectorizer::ImplVectorize( *this, rMtf, cReduce, pProgress );
+}
+
+bool Bitmap::Adjust( short nLuminancePercent, short nContrastPercent,
+ short nChannelRPercent, short nChannelGPercent, short nChannelBPercent,
+ double fGamma, bool bInvert, bool msoBrightness )
+{
+ bool bRet = false;
+
+ // nothing to do => return quickly
+ if( !nLuminancePercent && !nContrastPercent &&
+ !nChannelRPercent && !nChannelGPercent && !nChannelBPercent &&
+ ( fGamma == 1.0 ) && !bInvert )
+ {
+ bRet = true;
+ }
+ else
+ {
+ BitmapScopedWriteAccess pAcc(*this);
+
+ if( pAcc )
+ {
+ BitmapColor aCol;
+ const long nW = pAcc->Width();
+ const long nH = pAcc->Height();
+ std::unique_ptr<sal_uInt8[]> cMapR(new sal_uInt8[ 256 ]);
+ std::unique_ptr<sal_uInt8[]> cMapG(new sal_uInt8[ 256 ]);
+ std::unique_ptr<sal_uInt8[]> cMapB(new sal_uInt8[ 256 ]);
+ double fM, fROff, fGOff, fBOff, fOff;
+
+ // calculate slope
+ if( nContrastPercent >= 0 )
+ fM = 128.0 / ( 128.0 - 1.27 * MinMax( nContrastPercent, 0, 100 ) );
+ else
+ fM = ( 128.0 + 1.27 * MinMax( nContrastPercent, -100, 0 ) ) / 128.0;
+
+ if(!msoBrightness)
+ // total offset = luminance offset + contrast offset
+ fOff = MinMax( nLuminancePercent, -100, 100 ) * 2.55 + 128.0 - fM * 128.0;
+ else
+ fOff = MinMax( nLuminancePercent, -100, 100 ) * 2.55;
+
+ // channel offset = channel offset + total offset
+ fROff = nChannelRPercent * 2.55 + fOff;
+ fGOff = nChannelGPercent * 2.55 + fOff;
+ fBOff = nChannelBPercent * 2.55 + fOff;
+
+ // calculate gamma value
+ fGamma = ( fGamma <= 0.0 || fGamma > 10.0 ) ? 1.0 : ( 1.0 / fGamma );
+ const bool bGamma = ( fGamma != 1.0 );
+
+ // create mapping table
+ for( long nX = 0; nX < 256; nX++ )
+ {
+ if(!msoBrightness)
+ {
+ cMapR[ nX ] = static_cast<sal_uInt8>(MinMax( FRound( nX * fM + fROff ), 0, 255 ));
+ cMapG[ nX ] = static_cast<sal_uInt8>(MinMax( FRound( nX * fM + fGOff ), 0, 255 ));
+ cMapB[ nX ] = static_cast<sal_uInt8>(MinMax( FRound( nX * fM + fBOff ), 0, 255 ));
+ }
+ else
+ {
+ // LO simply uses (in a somewhat optimized form) "newcolor = (oldcolor-128)*contrast+brightness+128"
+ // as the formula, i.e. contrast first, brightness afterwards. MSOffice, for whatever weird reason,
+ // use neither first, but apparently it applies half of brightness before contrast and half afterwards.
+ cMapR[ nX ] = static_cast<sal_uInt8>(MinMax( FRound( (nX+fROff/2-128) * fM + 128 + fROff/2 ), 0, 255 ));
+ cMapG[ nX ] = static_cast<sal_uInt8>(MinMax( FRound( (nX+fGOff/2-128) * fM + 128 + fGOff/2 ), 0, 255 ));
+ cMapB[ nX ] = static_cast<sal_uInt8>(MinMax( FRound( (nX+fBOff/2-128) * fM + 128 + fBOff/2 ), 0, 255 ));
+ }
+ if( bGamma )
+ {
+ cMapR[ nX ] = GAMMA( cMapR[ nX ], fGamma );
+ cMapG[ nX ] = GAMMA( cMapG[ nX ], fGamma );
+ cMapB[ nX ] = GAMMA( cMapB[ nX ], fGamma );
+ }
+
+ if( bInvert )
+ {
+ cMapR[ nX ] = ~cMapR[ nX ];
+ cMapG[ nX ] = ~cMapG[ nX ];
+ cMapB[ nX ] = ~cMapB[ nX ];
+ }
+ }
+
+ // do modifying
+ if( pAcc->HasPalette() )
+ {
+ BitmapColor aNewCol;
+
+ for( sal_uInt16 i = 0, nCount = pAcc->GetPaletteEntryCount(); i < nCount; i++ )
+ {
+ const BitmapColor& rCol = pAcc->GetPaletteColor( i );
+ aNewCol.SetRed( cMapR[ rCol.GetRed() ] );
+ aNewCol.SetGreen( cMapG[ rCol.GetGreen() ] );
+ aNewCol.SetBlue( cMapB[ rCol.GetBlue() ] );
+ pAcc->SetPaletteColor( i, aNewCol );
+ }
+ }
+ else if( pAcc->GetScanlineFormat() == ScanlineFormat::N24BitTcBgr )
+ {
+ for( long nY = 0; nY < nH; nY++ )
+ {
+ Scanline pScan = pAcc->GetScanline( nY );
+
+ for( long nX = 0; nX < nW; nX++ )
+ {
+ *pScan = cMapB[ *pScan ]; pScan++;
+ *pScan = cMapG[ *pScan ]; pScan++;
+ *pScan = cMapR[ *pScan ]; pScan++;
+ }
+ }
+ }
+ else if( pAcc->GetScanlineFormat() == ScanlineFormat::N24BitTcRgb )
+ {
+ for( long nY = 0; nY < nH; nY++ )
+ {
+ Scanline pScan = pAcc->GetScanline( nY );
+
+ for( long nX = 0; nX < nW; nX++ )
+ {
+ *pScan = cMapR[ *pScan ]; pScan++;
+ *pScan = cMapG[ *pScan ]; pScan++;
+ *pScan = cMapB[ *pScan ]; pScan++;
+ }
+ }
+ }
+ else
+ {
+ for( long nY = 0; nY < nH; nY++ )
+ {
+ Scanline pScanline = pAcc->GetScanline(nY);
+ for( long nX = 0; nX < nW; nX++ )
+ {
+ aCol = pAcc->GetPixelFromData( pScanline, nX );
+ aCol.SetRed( cMapR[ aCol.GetRed() ] );
+ aCol.SetGreen( cMapG[ aCol.GetGreen() ] );
+ aCol.SetBlue( cMapB[ aCol.GetBlue() ] );
+ pAcc->SetPixelOnData( pScanline, nX, aCol );
+ }
+ }
+ }
+
+ pAcc.reset();
+ bRet = true;
+ }
+ }
+
+ return bRet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 05:21:49 +0000