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/*************************************************************************
*
* 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_goodies.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 );
}
#ifndef GCC
#endif
// ---------------
// - Win16 trash -
// ---------------
#ifdef WIN
static HINSTANCE hDLLInst = 0;
extern "C" int CALLBACK LibMain( HINSTANCE hDLL, WORD, WORD nHeap, LPSTR )
{
if ( nHeap )
UnlockData( 0 );
hDLLInst = hDLL;
return TRUE;
}
// ------------------------------------------------------------------------
extern "C" int CALLBACK WEP( int )
{
return 1;
}
#endif
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