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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_filter.hxx"
#include <vcl/graph.hxx>
#include <vcl/svapp.hxx>
#include <vcl/msgbox.hxx>
#include <vcl/bmpacc.hxx>
#include <svl/solar.hrc>
#include <svtools/fltcall.hxx>
#include <svtools/FilterConfigItem.hxx>
#define NewSubfileType 254
#define ImageWidth 256
#define ImageLength 257
#define BitsPerSample 258
#define Compression 259
#define PhotometricInterpretation 262
#define StripOffsets 273
#define SamplesPerPixel 277
#define RowsPerStrip 278
#define StripByteCounts 279
#define XResolution 282
#define YResolution 283
#define PlanarConfiguration 284
#define ResolutionUnit 296
#define ColorMap 320
#define ReferenceBlackWhite 532
// -------------
// - TIFFWriter -
// -------------
struct TIFFLZWCTreeNode
{
TIFFLZWCTreeNode* pBrother; // naechster Knoten, der den selben Vater hat
TIFFLZWCTreeNode* pFirstChild; // erster Sohn
USHORT nCode; // Der Code fuer den String von Pixelwerten, der sich ergibt, wenn
USHORT nValue; // Der Pixelwert
};
class TIFFWriter
{
private:
SvStream* mpOStm;
UINT32 mnStreamOfs;
BOOL mbStatus;
BitmapReadAccess* mpAcc;
UINT32 mnWidth, mnHeight, mnColors;
UINT32 mnCurAllPictHeight;
UINT32 mnSumOfAllPictHeight;
UINT32 mnBitsPerPixel;
UINT32 mnLastPercent;
UINT32 mnLatestIfdPos;
UINT16 mnTagCount; // number of tags already written
UINT32 mnCurrentTagCountPos; // offset to the position where the current
// tag count is to insert
UINT32 mnXResPos; // if != 0 this DWORDs stores the
UINT32 mnYResPos; // actual streamposition of the
UINT32 mnPalPos; // Tag Entry
UINT32 mnBitmapPos;
UINT32 mnStripByteCountPos;
TIFFLZWCTreeNode* pTable;
TIFFLZWCTreeNode* pPrefix;
USHORT nDataSize;
USHORT nClearCode;
USHORT nEOICode;
USHORT nTableSize;
USHORT nCodeSize;
ULONG nOffset;
ULONG dwShift;
com::sun::star::uno::Reference< com::sun::star::task::XStatusIndicator > xStatusIndicator;
void ImplCallback( UINT32 nPercent );
BOOL ImplWriteHeader( BOOL bMultiPage );
void ImplWritePalette();
BOOL ImplWriteBody();
void ImplWriteTag( UINT16 TagID, UINT16 DataType, UINT32 NumberOfItems, UINT32 Value);
void ImplWriteResolution( ULONG nStreamPos, sal_uInt32 nResolutionUnit );
void StartCompression();
void Compress( BYTE nSrc );
void EndCompression();
inline void WriteBits( USHORT nCode, USHORT nCodeLen );
public:
TIFFWriter();
~TIFFWriter();
BOOL WriteTIFF( const Graphic& rGraphic, SvStream& rTIFF, FilterConfigItem* pFilterConfigItem );
};
// ------------------------------------------------------------------------
TIFFWriter::TIFFWriter() :
mbStatus ( TRUE ),
mpAcc ( NULL ),
mnCurAllPictHeight ( 0 ),
mnSumOfAllPictHeight( 0 ),
mnLastPercent ( 0 ),
mnXResPos ( 0 ),
mnYResPos ( 0 ),
mnBitmapPos ( 0 ),
mnStripByteCountPos ( 0 )
{
}
// ------------------------------------------------------------------------
TIFFWriter::~TIFFWriter()
{
}
// ------------------------------------------------------------------------
BOOL TIFFWriter::WriteTIFF( const Graphic& rGraphic, SvStream& rTIFF, FilterConfigItem* pFilterConfigItem)
{
ULONG* pDummy = new ULONG; delete pDummy; // damit unter OS/2
// das richtige (Tools-)new
// verwendet wird, da es sonst
// in dieser DLL nur Vector-news
// gibt;
if ( pFilterConfigItem )
{
xStatusIndicator = pFilterConfigItem->GetStatusIndicator();
if ( xStatusIndicator.is() )
{
rtl::OUString aMsg;
xStatusIndicator->start( aMsg, 100 );
}
}
// #i69169# copy stream
mpOStm = &rTIFF;
const UINT16 nOldFormat = mpOStm->GetNumberFormatInt();
mnStreamOfs = mpOStm->Tell();
// we will use the BIG Endian Mode
// TIFF header
mpOStm->SetNumberFormatInt( NUMBERFORMAT_INT_BIGENDIAN );
*mpOStm << (UINT32)0x4d4d002a; // TIFF identifier
mnLatestIfdPos = mpOStm->Tell();
*mpOStm << (UINT32)0;
Animation aAnimation;
Bitmap aBmp;
if( mbStatus )
{
if ( rGraphic.IsAnimated() )
aAnimation = rGraphic.GetAnimation();
else
{
AnimationBitmap aAnimationBitmap( rGraphic.GetBitmap(), Point(), Size() );
aAnimation.Insert( aAnimationBitmap );
}
USHORT i;
for ( i = 0; i < aAnimation.Count(); i++ )
mnSumOfAllPictHeight += aAnimation.Get( i ).aBmpEx.GetSizePixel().Height();
for ( i = 0; mbStatus && ( i < aAnimation.Count() ); i++ )
{
mnPalPos = 0;
const AnimationBitmap& rAnimationBitmap = aAnimation.Get( i );
aBmp = rAnimationBitmap.aBmpEx.GetBitmap();
mpAcc = aBmp.AcquireReadAccess();
if ( mpAcc )
{
mnBitsPerPixel = aBmp.GetBitCount();
// export code below only handles four discrete cases
mnBitsPerPixel =
mnBitsPerPixel <= 1 ? 1 : mnBitsPerPixel <= 4 ? 4 : mnBitsPerPixel <= 8 ? 8 : 24;
if ( ImplWriteHeader( ( aAnimation.Count() > 0 ) ) )
{
Size aDestMapSize( 300, 300 );
const MapMode aMapMode( aBmp.GetPrefMapMode() );
if ( aMapMode.GetMapUnit() != MAP_PIXEL )
{
const Size aPrefSize( rGraphic.GetPrefSize() );
aDestMapSize = OutputDevice::LogicToLogic( aPrefSize, aMapMode, MAP_INCH );
}
ImplWriteResolution( mnXResPos, aDestMapSize.Width() );
ImplWriteResolution( mnYResPos, aDestMapSize.Height() );
if ( mnPalPos )
ImplWritePalette();
ImplWriteBody();
}
UINT32 nCurPos = mpOStm->Tell();
mpOStm->Seek( mnCurrentTagCountPos );
*mpOStm << mnTagCount;
mpOStm->Seek( nCurPos );
aBmp.ReleaseAccess( mpAcc );
}
else
mbStatus = FALSE;
}
}
mpOStm->SetNumberFormatInt( nOldFormat );
if ( xStatusIndicator.is() )
xStatusIndicator->end();
return mbStatus;
}
// ------------------------------------------------------------------------
void TIFFWriter::ImplCallback( UINT32 nPercent )
{
if ( xStatusIndicator.is() )
{
if( nPercent >= mnLastPercent + 3 )
{
mnLastPercent = nPercent;
if ( nPercent <= 100 )
xStatusIndicator->setValue( nPercent );
}
}
}
// ------------------------------------------------------------------------
BOOL TIFFWriter::ImplWriteHeader( BOOL bMultiPage )
{
mnTagCount = 0;
mnWidth = mpAcc->Width();
mnHeight = mpAcc->Height();
if ( mnWidth && mnHeight && mnBitsPerPixel && mbStatus )
{
UINT32 nCurrentPos = mpOStm->Tell();
mpOStm->Seek( mnLatestIfdPos );
*mpOStm << (UINT32)( nCurrentPos - mnStreamOfs ); // offset to the IFD
mpOStm->Seek( nCurrentPos );
// (OFS8) TIFF image file directory (IFD)
mnCurrentTagCountPos = mpOStm->Tell();
*mpOStm << (UINT16)0; // the number of tagentrys is to insert later
UINT32 nSubFileFlags = 0;
if ( bMultiPage )
nSubFileFlags |= 2;
ImplWriteTag( NewSubfileType, 4, 1, nSubFileFlags );
ImplWriteTag( ImageWidth, 4, 1, mnWidth );
ImplWriteTag( ImageLength, 4, 1, mnHeight);
ImplWriteTag( BitsPerSample, 3, 1, ( mnBitsPerPixel == 24 ) ? 8 : mnBitsPerPixel );
ImplWriteTag( Compression, 3, 1, 5 );
BYTE nTemp;
switch ( mnBitsPerPixel )
{
case 1 :
nTemp = 1;
break;
case 4 :
case 8 :
nTemp = 3;
break;
case 24:
nTemp = 2;
break;
default:
nTemp = 0; // -Wall set a default...
break;
}
ImplWriteTag( PhotometricInterpretation, 3, 1, nTemp );
mnBitmapPos = mpOStm->Tell();
ImplWriteTag( StripOffsets, 4, 1, 0 );
ImplWriteTag( SamplesPerPixel, 3, 1, ( mnBitsPerPixel == 24 ) ? 3 : 1 );
ImplWriteTag( RowsPerStrip, 4, 1, mnHeight ); //0xffffffff );
mnStripByteCountPos = mpOStm->Tell();
ImplWriteTag( StripByteCounts, 4, 1, ( ( mnWidth * mnBitsPerPixel * mnHeight ) + 7 ) >> 3 );
mnXResPos = mpOStm->Tell();
ImplWriteTag( XResolution, 5, 1, 0 );
mnYResPos = mpOStm->Tell();
ImplWriteTag( YResolution, 5, 1, 0 );
if ( mnBitsPerPixel != 1 )
ImplWriteTag( PlanarConfiguration, 3, 1, 1 ); // ( RGB ORDER )
ImplWriteTag( ResolutionUnit, 3, 1, 2); // Resolution Unit is Inch
if ( ( mnBitsPerPixel == 4 ) || ( mnBitsPerPixel == 8 ) )
{
mnColors = mpAcc->GetPaletteEntryCount();
mnPalPos = mpOStm->Tell();
ImplWriteTag( ColorMap, 3, 3 * mnColors, 0 );
}
// and last we write zero to close the num dir entries list
mnLatestIfdPos = mpOStm->Tell();
*mpOStm << (UINT32)0; // there are no more IFD
}
else
mbStatus = FALSE;
return mbStatus;
}
// ------------------------------------------------------------------------
void TIFFWriter::ImplWritePalette()
{
USHORT i;
ULONG nCurrentPos = mpOStm->Tell();
mpOStm->Seek( mnPalPos + 8 ); // the palette tag entry needs the offset
*mpOStm << static_cast<sal_uInt32>(nCurrentPos - mnStreamOfs); // to the palette colors
mpOStm->Seek( nCurrentPos );
for ( i = 0; i < mnColors; i++ )
{
const BitmapColor& rColor = mpAcc->GetPaletteColor( i );
*mpOStm << (UINT16)( rColor.GetRed() << 8 );
}
for ( i = 0; i < mnColors; i++ )
{
const BitmapColor& rColor = mpAcc->GetPaletteColor( i );
*mpOStm << (UINT16)( rColor.GetGreen() << 8 );
}
for ( i = 0; i < mnColors; i++ )
{
const BitmapColor& rColor = mpAcc->GetPaletteColor( i );
*mpOStm << (UINT16)( rColor.GetBlue() << 8 );
}
}
// ------------------------------------------------------------------------
BOOL TIFFWriter::ImplWriteBody()
{
BYTE nTemp = 0;
BYTE nShift;
ULONG j, x, y;
ULONG nGfxBegin = mpOStm->Tell();
mpOStm->Seek( mnBitmapPos + 8 ); // the strip offset tag entry needs the offset
*mpOStm << static_cast<sal_uInt32>(nGfxBegin - mnStreamOfs); // to the bitmap data
mpOStm->Seek( nGfxBegin );
StartCompression();
switch( mnBitsPerPixel )
{
case 24 :
{
for ( y = 0; y < mnHeight; y++, mnCurAllPictHeight++ )
{
ImplCallback( 100 * mnCurAllPictHeight / mnSumOfAllPictHeight );
for ( x = 0; x < mnWidth; x++ )
{
const BitmapColor& rColor = mpAcc->GetPixel( y, x );
Compress( rColor.GetRed() );
Compress( rColor.GetGreen() );
Compress( rColor.GetBlue() );
}
}
}
break;
case 8 :
{
for ( y = 0; y < mnHeight; y++, mnCurAllPictHeight++ )
{
ImplCallback( 100 * mnCurAllPictHeight / mnSumOfAllPictHeight );
for ( x = 0; x < mnWidth; x++ )
{
Compress( mpAcc->GetPixel( y, x ) );
}
}
}
break;
case 4 :
{
for ( nShift = 0, y = 0; y < mnHeight; y++, mnCurAllPictHeight++ )
{
ImplCallback( 100 * mnCurAllPictHeight / mnSumOfAllPictHeight );
for ( x = 0; x < mnWidth; x++, nShift++ )
{
if (!( nShift & 1 ))
nTemp = ( (BYTE)mpAcc->GetPixel( y, x ) << 4 );
else
Compress( (BYTE)( nTemp | ( mpAcc->GetPixel( y, x ) & 0xf ) ) );
}
if ( nShift & 1 )
Compress( nTemp );
}
}
break;
case 1 :
{
j = 1;
for ( y = 0; y < mnHeight; y++, mnCurAllPictHeight++ )
{
ImplCallback( 100 * mnCurAllPictHeight / mnSumOfAllPictHeight );
for ( x = 0; x < mnWidth; x++)
{
j <<= 1;
j |= ( ( ~mpAcc->GetPixel( y, x ) ) & 1 );
if ( j & 0x100 )
{
Compress( (BYTE)j );
j = 1;
}
}
if ( j != 1 )
{
Compress( (BYTE)(j << ( ( ( x & 7) ^ 7 ) + 1 ) ) );
j = 1;
}
}
}
break;
default:
{
mbStatus = FALSE;
}
break;
}
EndCompression();
if ( mnStripByteCountPos && mbStatus )
{
ULONG nGfxEnd = mpOStm->Tell();
mpOStm->Seek( mnStripByteCountPos + 8 );
*mpOStm << static_cast<sal_uInt32>( nGfxEnd - nGfxBegin ); // mnStripByteCountPos needs the size of the compression data
mpOStm->Seek( nGfxEnd );
}
return mbStatus;
}
// ------------------------------------------------------------------------
void TIFFWriter::ImplWriteResolution( ULONG nStreamPos, sal_uInt32 nResolutionUnit )
{
ULONG nCurrentPos = mpOStm->Tell();
mpOStm->Seek( nStreamPos + 8 );
*mpOStm << (UINT32)nCurrentPos - mnStreamOfs;
mpOStm->Seek( nCurrentPos );
*mpOStm << (UINT32)1;
*mpOStm << nResolutionUnit;
}
// ------------------------------------------------------------------------
void TIFFWriter::ImplWriteTag( UINT16 nTagID, UINT16 nDataType, UINT32 nNumberOfItems, UINT32 nValue)
{
mnTagCount++;
*mpOStm << nTagID;
*mpOStm << nDataType;
*mpOStm << nNumberOfItems;
if ( nDataType == 3 )
nValue <<=16; // in Big Endian Mode WORDS needed to be shifted to a DWORD
*mpOStm << nValue;
}
// ------------------------------------------------------------------------
inline void TIFFWriter::WriteBits( USHORT nCode, USHORT nCodeLen )
{
dwShift |= ( nCode << ( nOffset - nCodeLen ) );
nOffset -= nCodeLen;
while ( nOffset < 24 )
{
*mpOStm << (BYTE)( dwShift >> 24 );
dwShift <<= 8;
nOffset += 8;
}
if ( nCode == 257 && nOffset != 32 )
{
*mpOStm << (BYTE)( dwShift >> 24 );
}
}
// ------------------------------------------------------------------------
void TIFFWriter::StartCompression()
{
USHORT i;
nDataSize = 8;
nClearCode = 1 << nDataSize;
nEOICode = nClearCode + 1;
nTableSize = nEOICode + 1;
nCodeSize = nDataSize + 1;
nOffset = 32; // anzahl freier bits in dwShift
dwShift = 0;
pTable = new TIFFLZWCTreeNode[ 4096 ];
for ( i = 0; i < 4096; i++)
{
pTable[ i ].pBrother = pTable[ i ].pFirstChild = NULL;
pTable[ i ].nValue = (BYTE)( pTable[ i ].nCode = i );
}
pPrefix = NULL;
WriteBits( nClearCode, nCodeSize );
}
// ------------------------------------------------------------------------
void TIFFWriter::Compress( BYTE nCompThis )
{
TIFFLZWCTreeNode* p;
USHORT i;
BYTE nV;
if( !pPrefix )
{
pPrefix = pTable + nCompThis;
}
else
{
nV = nCompThis;
for( p = pPrefix->pFirstChild; p != NULL; p = p->pBrother )
{
if ( p->nValue == nV )
break;
}
if( p )
pPrefix = p;
else
{
WriteBits( pPrefix->nCode, nCodeSize );
if ( nTableSize == 409 )
{
WriteBits( nClearCode, nCodeSize );
for ( i = 0; i < nClearCode; i++ )
pTable[ i ].pFirstChild = NULL;
nCodeSize = nDataSize + 1;
nTableSize = nEOICode + 1;
}
else
{
if( nTableSize == (USHORT)( ( 1 << nCodeSize ) - 1 ) )
nCodeSize++;
p = pTable + ( nTableSize++ );
p->pBrother = pPrefix->pFirstChild;
pPrefix->pFirstChild = p;
p->nValue = nV;
p->pFirstChild = NULL;
}
pPrefix = pTable + nV;
}
}
}
// ------------------------------------------------------------------------
void TIFFWriter::EndCompression()
{
if( pPrefix )
WriteBits( pPrefix->nCode, nCodeSize );
WriteBits( nEOICode, nCodeSize );
delete[] pTable;
}
// ------------------------------------------------------------------------
// ---------------------
// - exported function -
// ---------------------
extern "C" BOOL __LOADONCALLAPI GraphicExport( SvStream& rStream, Graphic& rGraphic, FilterConfigItem* pFilterConfigItem, BOOL )
{
return TIFFWriter().WriteTIFF( rGraphic, rStream, pFilterConfigItem );
}
// ---------------
// - 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
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|