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Diffstat (limited to 'filter/source/graphicfilter/eras/eras.cxx')
| -rw-r--r-- | filter/source/graphicfilter/eras/eras.cxx | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/filter/source/graphicfilter/eras/eras.cxx b/filter/source/graphicfilter/eras/eras.cxx new file mode 100644 index 000000000000..cb9005fdf0eb --- /dev/null +++ b/filter/source/graphicfilter/eras/eras.cxx @@ -0,0 +1,288 @@ +/************************************************************************* + * + * 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_filter.hxx" + +#include <vcl/graph.hxx> +#include <vcl/bmpacc.hxx> +#include <svtools/fltcall.hxx> +#include <svtools/FilterConfigItem.hxx> + +//============================ RASWriter ================================== + +class RASWriter { + +private: + + SvStream* mpOStm; + USHORT mpOStmOldModus; + + BOOL mbStatus; + BitmapReadAccess* mpAcc; + + ULONG mnWidth, mnHeight; + USHORT mnColors, mnDepth; + + ULONG mnRepCount; + BYTE mnRepVal; + + com::sun::star::uno::Reference< com::sun::star::task::XStatusIndicator > xStatusIndicator; + + void ImplCallback( ULONG nCurrentYPos ); + BOOL ImplWriteHeader(); + void ImplWritePalette(); + void ImplWriteBody(); + void ImplPutByte( BYTE ); // RLE decoding + +public: + RASWriter(); + ~RASWriter(); + + BOOL WriteRAS( const Graphic& rGraphic, SvStream& rRAS, FilterConfigItem* pFilterConfigItem ); +}; + +//=================== Methoden von RASWriter ============================== + +RASWriter::RASWriter() : + mbStatus ( TRUE ), + mpAcc ( NULL ), + mnRepCount ( 0xffffffff ) +{ +} + +// ------------------------------------------------------------------------ + +RASWriter::~RASWriter() +{ +} + +// ------------------------------------------------------------------------ + +void RASWriter::ImplCallback( ULONG nYPos ) +{ + if ( xStatusIndicator.is() ) + xStatusIndicator->setValue( (USHORT)( ( 100 * nYPos ) / mnHeight ) ); +} + +// ------------------------------------------------------------------------ + +BOOL RASWriter::WriteRAS( const Graphic& rGraphic, SvStream& rRAS, FilterConfigItem* pFilterConfigItem) +{ + Bitmap aBmp; + + mpOStm = &rRAS; + + if ( pFilterConfigItem ) + { + xStatusIndicator = pFilterConfigItem->GetStatusIndicator(); + if ( xStatusIndicator.is() ) + { + rtl::OUString aMsg; + xStatusIndicator->start( aMsg, 100 ); + } + } + + BitmapEx aBmpEx( rGraphic.GetBitmapEx() ); + aBmp = aBmpEx.GetBitmap(); + + if ( aBmp.GetBitCount() == 4 ) + aBmp.Convert( BMP_CONVERSION_8BIT_COLORS ); + + mnDepth = aBmp.GetBitCount(); + + // export code below only handles three discrete cases + mnDepth = mnDepth <= 1 ? 1 : mnDepth <= 8 ? 8 : 24; + + mpAcc = aBmp.AcquireReadAccess(); + if ( mpAcc ) + { + mpOStmOldModus = mpOStm->GetNumberFormatInt(); + mpOStm->SetNumberFormatInt( NUMBERFORMAT_INT_BIGENDIAN ); + + if ( ImplWriteHeader() ) + { + if ( mnDepth <= 8 ) + ImplWritePalette(); + ImplWriteBody(); + } + aBmp.ReleaseAccess( mpAcc ); + } + else + mbStatus = FALSE; + + mpOStm->SetNumberFormatInt( mpOStmOldModus ); + + if ( xStatusIndicator.is() ) + xStatusIndicator->end(); + + return mbStatus; +} + +// ------------------------------------------------------------------------ + +BOOL RASWriter::ImplWriteHeader() +{ + mnWidth = mpAcc->Width(); + mnHeight = mpAcc->Height(); + if ( mnDepth <= 8 ) + { + mnColors = mpAcc->GetPaletteEntryCount(); + if (mnColors == 0) + mbStatus = FALSE; + } + if ( mbStatus && mnWidth && mnHeight && mnDepth ) + { + *mpOStm << (UINT32)0x59a66a95 << (UINT32)mnWidth << (UINT32)mnHeight + << (UINT32)mnDepth + << (UINT32)(( ( ( ( mnWidth * mnDepth ) + 15 ) >> 4 ) << 1 ) * mnHeight) + << (UINT32)2; + + if ( mnDepth > 8 ) + *mpOStm << (UINT32)0 << (UINT32)0; + else + { + + *mpOStm << (UINT32)1 << (UINT32)( mnColors * 3 ); + } + } + else mbStatus = FALSE; + + return mbStatus; +} + +// ------------------------------------------------------------------------ + +void RASWriter::ImplWritePalette() +{ + USHORT i; + + for ( i = 0; i < mnColors; *mpOStm << mpAcc->GetPaletteColor( i++ ).GetRed() ) ; + for ( i = 0; i < mnColors; *mpOStm << mpAcc->GetPaletteColor( i++ ).GetGreen() ) ; + for ( i = 0; i < mnColors; *mpOStm << mpAcc->GetPaletteColor( i++ ).GetBlue() ) ; +} + +// ------------------------------------------------------------------------ + +void RASWriter::ImplWriteBody() +{ + ULONG x, y; + + if ( mnDepth == 24 ) + { + for ( y = 0; y < mnHeight; y++ ) + { + ImplCallback( y ); // processing output + for ( x = 0; x < mnWidth; x++ ) + { + BitmapColor aColor( mpAcc->GetPixel( y, x ) ); + ImplPutByte( aColor.GetBlue() ); // Format ist BGR + ImplPutByte( aColor.GetGreen() ); + ImplPutByte( aColor.GetRed() ); + } + if ( x & 1 ) ImplPutByte( 0 ); // WORD ALIGNMENT ??? + } + } + else if ( mnDepth == 8 ) + { + for ( y = 0; y < mnHeight; y++ ) + { + ImplCallback( y ); // processing output + for ( x = 0; x < mnWidth; x++ ) + { + ImplPutByte ( mpAcc->GetPixel( y, x ) ); + } + if ( x & 1 ) ImplPutByte( 0 ); // WORD ALIGNMENT ??? + } + } + else if ( mnDepth == 1 ) + { + BYTE nDat = 0; + + for ( y = 0; y < mnHeight; y++ ) + { + ImplCallback( y ); // processing output + for ( x = 0; x < mnWidth; x++ ) + { + nDat = ( ( nDat << 1 ) | ( mpAcc->GetPixel ( y, x ) & 1 ) ); + if ( ( x & 7 ) == 7 ) + ImplPutByte( nDat ); + } + if ( x & 7 ) + ImplPutByte( sal::static_int_cast< BYTE >(nDat << ( ( ( x & 7 ) ^ 7 ) + 1)) );// write remaining bits + if (!( ( x - 1 ) & 0x8 ) ) + ImplPutByte( 0 ); // WORD ALIGNMENT ??? + } + } + ImplPutByte( mnRepVal + 1 ); // end of RLE decoding +} + +// ------------------------------------------------------------------------ + +void RASWriter::ImplPutByte( BYTE nPutThis ) +{ + if ( mnRepCount == 0xffffffff ) + { + mnRepCount = 0; + mnRepVal = nPutThis; + } + else + { + if ( ( nPutThis == mnRepVal ) && ( mnRepCount != 0xff ) ) + mnRepCount++; + else + { + if ( mnRepCount == 0 ) + { + *mpOStm << (BYTE)mnRepVal; + if ( mnRepVal == 0x80 ) + *mpOStm << (BYTE)0; + } + else + { + *mpOStm << (BYTE)0x80; + *mpOStm << (BYTE)mnRepCount; + *mpOStm << (BYTE)mnRepVal; + } + mnRepVal = nPutThis; + mnRepCount = 0; + } + } +} + +// ------------------------------------------------------------------------ + +// --------------------- +// - exported function - +// --------------------- + +extern "C" BOOL __LOADONCALLAPI GraphicExport( SvStream& rStream, Graphic& rGraphic, FilterConfigItem* pFilterConfigItem, BOOL ) +{ + RASWriter aRASWriter; + + return aRASWriter.WriteRAS( rGraphic, rStream, pFilterConfigItem ); +} |