/* -*- 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 <tools/debug.hxx>
#include <vcl/bitmap.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/window.hxx>
#include <vcl/metaact.hxx>
#include <vcl/gdimtf.hxx>
#include <vcl/virdev.hxx>
#include <vcl/bmpacc.hxx>
#include <vcl/outdev.hxx>
#include <vcl/window.hxx>
#include <vcl/image.hxx>
#include <bmpfast.hxx>
#include <salbmp.hxx>
#include <salgdi.hxx>
#include <impbmp.hxx>
#include <sallayout.hxx>
#include <image.h>
#include <outdev.h>
#include <window.h>
#include <region.h>
#include <outdata.hxx>
DBG_NAMEEX( OutputDevice )
// =======================================================================
// -----------
// - Defines -
// -----------
#define OUTDEV_INIT() \
{ \
if ( !IsDeviceOutputNecessary() ) \
return; \
\
if ( !mpGraphics ) \
if ( !ImplGetGraphics() ) \
return; \
\
if ( mbInitClipRegion ) \
ImplInitClipRegion(); \
\
if ( mbOutputClipped ) \
return; \
}
// -------------
// - externals -
// -------------
extern const sal_uLong nVCLRLut[ 6 ];
extern const sal_uLong nVCLGLut[ 6 ];
extern const sal_uLong nVCLBLut[ 6 ];
extern const sal_uLong nVCLDitherLut[ 256 ];
extern const sal_uLong nVCLLut[ 256 ];
// =======================================================================
sal_uLong ImplAdjustTwoRect( SalTwoRect& rTwoRect, const Size& rSizePix )
{
sal_uLong nMirrFlags = 0;
if ( rTwoRect.mnDestWidth < 0 )
{
rTwoRect.mnSrcX = rSizePix.Width() - rTwoRect.mnSrcX - rTwoRect.mnSrcWidth;
rTwoRect.mnDestWidth = -rTwoRect.mnDestWidth;
rTwoRect.mnDestX -= rTwoRect.mnDestWidth-1;
nMirrFlags |= BMP_MIRROR_HORZ;
}
if ( rTwoRect.mnDestHeight < 0 )
{
rTwoRect.mnSrcY = rSizePix.Height() - rTwoRect.mnSrcY - rTwoRect.mnSrcHeight;
rTwoRect.mnDestHeight = -rTwoRect.mnDestHeight;
rTwoRect.mnDestY -= rTwoRect.mnDestHeight-1;
nMirrFlags |= BMP_MIRROR_VERT;
}
if( ( rTwoRect.mnSrcX < 0 ) || ( rTwoRect.mnSrcX >= rSizePix.Width() ) ||
( rTwoRect.mnSrcY < 0 ) || ( rTwoRect.mnSrcY >= rSizePix.Height() ) ||
( ( rTwoRect.mnSrcX + rTwoRect.mnSrcWidth ) > rSizePix.Width() ) ||
( ( rTwoRect.mnSrcY + rTwoRect.mnSrcHeight ) > rSizePix.Height() ) )
{
const Rectangle aSourceRect( Point( rTwoRect.mnSrcX, rTwoRect.mnSrcY ),
Size( rTwoRect.mnSrcWidth, rTwoRect.mnSrcHeight ) );
Rectangle aCropRect( aSourceRect );
aCropRect.Intersection( Rectangle( Point(), rSizePix ) );
if( aCropRect.IsEmpty() )
rTwoRect.mnSrcWidth = rTwoRect.mnSrcHeight = rTwoRect.mnDestWidth = rTwoRect.mnDestHeight = 0;
else
{
const double fFactorX = ( rTwoRect.mnSrcWidth > 1 ) ? (double) ( rTwoRect.mnDestWidth - 1 ) / ( rTwoRect.mnSrcWidth - 1 ) : 0.0;
const double fFactorY = ( rTwoRect.mnSrcHeight > 1 ) ? (double) ( rTwoRect.mnDestHeight - 1 ) / ( rTwoRect.mnSrcHeight - 1 ) : 0.0;
const long nDstX1 = rTwoRect.mnDestX + FRound( fFactorX * ( aCropRect.Left() - rTwoRect.mnSrcX ) );
const long nDstY1 = rTwoRect.mnDestY + FRound( fFactorY * ( aCropRect.Top() - rTwoRect.mnSrcY ) );
const long nDstX2 = rTwoRect.mnDestX + FRound( fFactorX * ( aCropRect.Right() - rTwoRect.mnSrcX ) );
const long nDstY2 = rTwoRect.mnDestY + FRound( fFactorY * ( aCropRect.Bottom() - rTwoRect.mnSrcY ) );
rTwoRect.mnSrcX = aCropRect.Left();
rTwoRect.mnSrcY = aCropRect.Top();
rTwoRect.mnSrcWidth = aCropRect.GetWidth();
rTwoRect.mnSrcHeight = aCropRect.GetHeight();
rTwoRect.mnDestX = nDstX1;
rTwoRect.mnDestY = nDstY1;
rTwoRect.mnDestWidth = nDstX2 - nDstX1 + 1;
rTwoRect.mnDestHeight = nDstY2 - nDstY1 + 1;
}
}
return nMirrFlags;
}
// =======================================================================
void ImplAdjustTwoRect( SalTwoRect& rTwoRect, const Rectangle& rValidSrcRect )
{
if( ( rTwoRect.mnSrcX < rValidSrcRect.Left() ) || ( rTwoRect.mnSrcX >= rValidSrcRect.Right() ) ||
( rTwoRect.mnSrcY < rValidSrcRect.Top() ) || ( rTwoRect.mnSrcY >= rValidSrcRect.Bottom() ) ||
( ( rTwoRect.mnSrcX + rTwoRect.mnSrcWidth ) > rValidSrcRect.Right() ) ||
( ( rTwoRect.mnSrcY + rTwoRect.mnSrcHeight ) > rValidSrcRect.Bottom() ) )
{
const Rectangle aSourceRect( Point( rTwoRect.mnSrcX, rTwoRect.mnSrcY ),
Size( rTwoRect.mnSrcWidth, rTwoRect.mnSrcHeight ) );
Rectangle aCropRect( aSourceRect );
aCropRect.Intersection( rValidSrcRect );
if( aCropRect.IsEmpty() )
rTwoRect.mnSrcWidth = rTwoRect.mnSrcHeight = rTwoRect.mnDestWidth = rTwoRect.mnDestHeight = 0;
else
{
const double fFactorX = ( rTwoRect.mnSrcWidth > 1 ) ? (double) ( rTwoRect.mnDestWidth - 1 ) / ( rTwoRect.mnSrcWidth - 1 ) : 0.0;
const double fFactorY = ( rTwoRect.mnSrcHeight > 1 ) ? (double) ( rTwoRect.mnDestHeight - 1 ) / ( rTwoRect.mnSrcHeight - 1 ) : 0.0;
const long nDstX1 = rTwoRect.mnDestX + FRound( fFactorX * ( aCropRect.Left() - rTwoRect.mnSrcX ) );
const long nDstY1 = rTwoRect.mnDestY + FRound( fFactorY * ( aCropRect.Top() - rTwoRect.mnSrcY ) );
const long nDstX2 = rTwoRect.mnDestX + FRound( fFactorX * ( aCropRect.Right() - rTwoRect.mnSrcX ) );
const long nDstY2 = rTwoRect.mnDestY + FRound( fFactorY * ( aCropRect.Bottom() - rTwoRect.mnSrcY ) );
rTwoRect.mnSrcX = aCropRect.Left();
rTwoRect.mnSrcY = aCropRect.Top();
rTwoRect.mnSrcWidth = aCropRect.GetWidth();
rTwoRect.mnSrcHeight = aCropRect.GetHeight();
rTwoRect.mnDestX = nDstX1;
rTwoRect.mnDestY = nDstY1;
rTwoRect.mnDestWidth = nDstX2 - nDstX1 + 1;
rTwoRect.mnDestHeight = nDstY2 - nDstY1 + 1;
}
}
}
// =======================================================================
void OutputDevice::ImplDrawOutDevDirect( const OutputDevice* pSrcDev, void* pVoidPosAry )
{
SalTwoRect* pPosAry = (SalTwoRect*)pVoidPosAry;
SalGraphics* pGraphics2;
if ( this == pSrcDev )
pGraphics2 = NULL;
else
{
if ( (GetOutDevType() != pSrcDev->GetOutDevType()) ||
(GetOutDevType() != OUTDEV_WINDOW) )
{
if ( !pSrcDev->mpGraphics )
{
if ( !((OutputDevice*)pSrcDev)->ImplGetGraphics() )
return;
}
pGraphics2 = pSrcDev->mpGraphics;
}
else
{
if ( ((Window*)this)->mpWindowImpl->mpFrameWindow == ((Window*)pSrcDev)->mpWindowImpl->mpFrameWindow )
pGraphics2 = NULL;
else
{
if ( !pSrcDev->mpGraphics )
{
if ( !((OutputDevice*)pSrcDev)->ImplGetGraphics() )
return;
}
pGraphics2 = pSrcDev->mpGraphics;
if ( !mpGraphics )
{
if ( !ImplGetGraphics() )
return;
}
DBG_ASSERT( mpGraphics && pSrcDev->mpGraphics,
"OutputDevice::DrawOutDev(): We need more than one Graphics" );
}
}
}
// #102532# Offset only has to be pseudo window offset
const Rectangle aSrcOutRect( Point( pSrcDev->mnOutOffX, pSrcDev->mnOutOffY ),
Size( pSrcDev->mnOutWidth, pSrcDev->mnOutHeight ) );
ImplAdjustTwoRect( *pPosAry, aSrcOutRect );
if ( pPosAry->mnSrcWidth && pPosAry->mnSrcHeight && pPosAry->mnDestWidth && pPosAry->mnDestHeight )
{
// --- RTL --- if this is no window, but pSrcDev is a window
// mirroring may be required
// because only windows have a SalGraphicsLayout
// mirroring is performed here
if( (GetOutDevType() != OUTDEV_WINDOW) && pGraphics2 && (pGraphics2->GetLayout() & SAL_LAYOUT_BIDI_RTL) )
{
SalTwoRect pPosAry2 = *pPosAry;
pGraphics2->mirror( pPosAry2.mnSrcX, pPosAry2.mnSrcWidth, pSrcDev );
mpGraphics->CopyBits( &pPosAry2, pGraphics2, this, pSrcDev );
}
else
mpGraphics->CopyBits( pPosAry, pGraphics2, this, pSrcDev );
}
}
void OutputDevice::DrawOutDev( const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPt, const Size& rSrcSize )
{
OSL_TRACE( "OutputDevice::DrawOutDev()" );
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
DBG_ASSERT( meOutDevType != OUTDEV_PRINTER, "Don't use OutputDevice::DrawOutDev(...) with printer devices!" );
if( ImplIsRecordLayout() )
return;
if ( meOutDevType == OUTDEV_PRINTER )
return;
if ( ROP_INVERT == meRasterOp )
{
DrawRect( Rectangle( rDestPt, rDestSize ) );
return;
}
if ( mpMetaFile )
{
const Bitmap aBmp( GetBitmap( rSrcPt, rSrcSize ) );
mpMetaFile->AddAction( new MetaBmpScaleAction( rDestPt, rDestSize, aBmp ) );
}
OUTDEV_INIT();
SalTwoRect aPosAry;
aPosAry.mnSrcWidth = ImplLogicWidthToDevicePixel( rSrcSize.Width() );
aPosAry.mnSrcHeight = ImplLogicHeightToDevicePixel( rSrcSize.Height() );
aPosAry.mnDestWidth = ImplLogicWidthToDevicePixel( rDestSize.Width() );
aPosAry.mnDestHeight = ImplLogicHeightToDevicePixel( rDestSize.Height() );
if ( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight )
{
aPosAry.mnSrcX = ImplLogicXToDevicePixel( rSrcPt.X() );
aPosAry.mnSrcY = ImplLogicYToDevicePixel( rSrcPt.Y() );
aPosAry.mnDestX = ImplLogicXToDevicePixel( rDestPt.X() );
aPosAry.mnDestY = ImplLogicYToDevicePixel( rDestPt.Y() );
const Rectangle aSrcOutRect( Point( mnOutOffX, mnOutOffY ),
Size( mnOutWidth, mnOutHeight ) );
ImplAdjustTwoRect( aPosAry, aSrcOutRect );
if ( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight )
mpGraphics->CopyBits( &aPosAry, NULL, this, NULL );
}
if( mpAlphaVDev )
mpAlphaVDev->DrawOutDev( rDestPt, rDestSize, rSrcPt, rSrcSize );
}
void OutputDevice::DrawOutDev( const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPt, const Size& rSrcSize,
const OutputDevice& rOutDev )
{
OSL_TRACE( "OutputDevice::DrawOutDev()" );
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
DBG_CHKOBJ( &rOutDev, OutputDevice, ImplDbgCheckOutputDevice );
DBG_ASSERT( meOutDevType != OUTDEV_PRINTER, "Don't use OutputDevice::DrawOutDev(...) with printer devices!" );
DBG_ASSERT( rOutDev.meOutDevType != OUTDEV_PRINTER, "Don't use OutputDevice::DrawOutDev(...) with printer devices!" );
if ( (meOutDevType == OUTDEV_PRINTER) || (rOutDev.meOutDevType == OUTDEV_PRINTER) || ImplIsRecordLayout() )
return;
if ( ROP_INVERT == meRasterOp )
{
DrawRect( Rectangle( rDestPt, rDestSize ) );
return;
}
if ( mpMetaFile )
{
const Bitmap aBmp( rOutDev.GetBitmap( rSrcPt, rSrcSize ) );
mpMetaFile->AddAction( new MetaBmpScaleAction( rDestPt, rDestSize, aBmp ) );
}
OUTDEV_INIT();
SalTwoRect aPosAry;
aPosAry.mnSrcX = rOutDev.ImplLogicXToDevicePixel( rSrcPt.X() );
aPosAry.mnSrcY = rOutDev.ImplLogicYToDevicePixel( rSrcPt.Y() );
aPosAry.mnSrcWidth = rOutDev.ImplLogicWidthToDevicePixel( rSrcSize.Width() );
aPosAry.mnSrcHeight = rOutDev.ImplLogicHeightToDevicePixel( rSrcSize.Height() );
aPosAry.mnDestX = ImplLogicXToDevicePixel( rDestPt.X() );
aPosAry.mnDestY = ImplLogicYToDevicePixel( rDestPt.Y() );
aPosAry.mnDestWidth = ImplLogicWidthToDevicePixel( rDestSize.Width() );
aPosAry.mnDestHeight = ImplLogicHeightToDevicePixel( rDestSize.Height() );
if( mpAlphaVDev )
{
if( rOutDev.mpAlphaVDev )
{
// alpha-blend source over destination
DrawBitmapEx( rDestPt, rDestSize, rOutDev.GetBitmapEx(rSrcPt, rSrcSize) );
// This would be mode SOURCE:
// copy source alpha channel to our alpha channel
//mpAlphaVDev->DrawOutDev( rDestPt, rDestSize, rSrcPt, rSrcSize, *rOutDev.mpAlphaVDev );
}
else
{
ImplDrawOutDevDirect( &rOutDev, &aPosAry );
// #i32109#: make destination rectangle opaque - source has no alpha
mpAlphaVDev->ImplFillOpaqueRectangle( Rectangle(rDestPt, rDestSize) );
}
}
else
{
if( rOutDev.mpAlphaVDev )
{
// alpha-blend source over destination
DrawBitmapEx( rDestPt, rDestSize, rOutDev.GetBitmapEx(rSrcPt, rSrcSize) );
}
else
{
// no alpha at all, neither in source nor destination device
ImplDrawOutDevDirect( &rOutDev, &aPosAry );
}
}
}
void OutputDevice::CopyArea( const Point& rDestPt,
const Point& rSrcPt, const Size& rSrcSize,
sal_uInt16 nFlags )
{
OSL_TRACE( "OutputDevice::CopyArea()" );
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
DBG_ASSERT( meOutDevType != OUTDEV_PRINTER, "Don't use OutputDevice::CopyArea(...) with printer devices!" );
if ( meOutDevType == OUTDEV_PRINTER || ImplIsRecordLayout() )
return;
RasterOp eOldRop = GetRasterOp();
SetRasterOp( ROP_OVERPAINT );
OUTDEV_INIT();
SalTwoRect aPosAry;
aPosAry.mnSrcWidth = ImplLogicWidthToDevicePixel( rSrcSize.Width() );
aPosAry.mnSrcHeight = ImplLogicHeightToDevicePixel( rSrcSize.Height() );
if ( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight )
{
aPosAry.mnSrcX = ImplLogicXToDevicePixel( rSrcPt.X() );
aPosAry.mnSrcY = ImplLogicYToDevicePixel( rSrcPt.Y() );
aPosAry.mnDestX = ImplLogicXToDevicePixel( rDestPt.X() );
aPosAry.mnDestY = ImplLogicYToDevicePixel( rDestPt.Y() );
aPosAry.mnDestWidth = aPosAry.mnSrcWidth;
aPosAry.mnDestHeight = aPosAry.mnSrcHeight;
const Rectangle aSrcOutRect( Point( mnOutOffX, mnOutOffY ),
Size( mnOutWidth, mnOutHeight ) );
const Rectangle aSrcRect( Point( aPosAry.mnSrcX, aPosAry.mnSrcY ),
Size( aPosAry.mnSrcWidth, aPosAry.mnSrcHeight ) );
ImplAdjustTwoRect( aPosAry, aSrcOutRect );
if ( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight )
{
if ( (meOutDevType == OUTDEV_WINDOW) && (nFlags & COPYAREA_WINDOWINVALIDATE) )
{
((Window*)this)->ImplMoveAllInvalidateRegions( aSrcRect,
aPosAry.mnDestX-aPosAry.mnSrcX,
aPosAry.mnDestY-aPosAry.mnSrcY,
false );
mpGraphics->CopyArea( aPosAry.mnDestX, aPosAry.mnDestY,
aPosAry.mnSrcX, aPosAry.mnSrcY,
aPosAry.mnSrcWidth, aPosAry.mnSrcHeight,
SAL_COPYAREA_WINDOWINVALIDATE, this );
}
else
{
aPosAry.mnDestWidth = aPosAry.mnSrcWidth;
aPosAry.mnDestHeight = aPosAry.mnSrcHeight;
mpGraphics->CopyBits( &aPosAry, NULL, this, NULL );
}
}
}
SetRasterOp( eOldRop );
if( mpAlphaVDev )
mpAlphaVDev->CopyArea( rDestPt, rSrcPt, rSrcSize, nFlags );
}
void OutputDevice::ImplDrawFrameDev( const Point& rPt, const Point& rDevPt, const Size& rDevSize,
const OutputDevice& rOutDev, const Region& rRegion )
{
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
GDIMetaFile* pOldMetaFile = mpMetaFile;
bool bOldMap = mbMap;
RasterOp eOldROP = GetRasterOp();
mpMetaFile = NULL;
mbMap = false;
SetRasterOp( ROP_OVERPAINT );
if ( !IsDeviceOutputNecessary() )
return;
if ( !mpGraphics )
{
if ( !ImplGetGraphics() )
return;
}
// ClipRegion zuruecksetzen
if ( rRegion.IsNull() )
mpGraphics->ResetClipRegion();
else
ImplSelectClipRegion( rRegion );
SalTwoRect aPosAry;
aPosAry.mnSrcX = rDevPt.X();
aPosAry.mnSrcY = rDevPt.Y();
aPosAry.mnSrcWidth = rDevSize.Width();
aPosAry.mnSrcHeight = rDevSize.Height();
aPosAry.mnDestX = rPt.X();
aPosAry.mnDestY = rPt.Y();
aPosAry.mnDestWidth = rDevSize.Width();
aPosAry.mnDestHeight = rDevSize.Height();
ImplDrawOutDevDirect( &rOutDev, &aPosAry );
// Ensure that ClipRegion is recalculated and set
mbInitClipRegion = true;
SetRasterOp( eOldROP );
mbMap = bOldMap;
mpMetaFile = pOldMetaFile;
}
void OutputDevice::ImplGetFrameDev( const Point& rPt, const Point& rDevPt, const Size& rDevSize,
OutputDevice& rDev )
{
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
bool bOldMap = mbMap;
mbMap = false;
rDev.DrawOutDev( rDevPt, rDevSize, rPt, rDevSize, *this );
mbMap = bOldMap;
}
void OutputDevice::DrawBitmap( const Point& rDestPt, const Bitmap& rBitmap )
{
OSL_TRACE( "OutputDevice::DrawBitmap()" );
if( ImplIsRecordLayout() )
return;
const Size aSizePix( rBitmap.GetSizePixel() );
ImplDrawBitmap( rDestPt, PixelToLogic( aSizePix ), Point(), aSizePix, rBitmap, META_BMP_ACTION );
if( mpAlphaVDev )
{
// #i32109#: Make bitmap area opaque
mpAlphaVDev->ImplFillOpaqueRectangle( Rectangle(rDestPt, PixelToLogic( aSizePix )) );
}
}
void OutputDevice::DrawBitmap( const Point& rDestPt, const Size& rDestSize, const Bitmap& rBitmap )
{
OSL_TRACE( "OutputDevice::DrawBitmap( Size )" );
if( ImplIsRecordLayout() )
return;
ImplDrawBitmap( rDestPt, rDestSize, Point(), rBitmap.GetSizePixel(), rBitmap, META_BMPSCALE_ACTION );
if( mpAlphaVDev )
{
// #i32109#: Make bitmap area opaque
mpAlphaVDev->ImplFillOpaqueRectangle( Rectangle(rDestPt, rDestSize) );
}
}
void OutputDevice::DrawBitmap( const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel,
const Bitmap& rBitmap )
{
OSL_TRACE( "OutputDevice::DrawBitmap( Point, Size )" );
if( ImplIsRecordLayout() )
return;
ImplDrawBitmap( rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel, rBitmap, META_BMPSCALEPART_ACTION );
if( mpAlphaVDev )
{
// #i32109#: Make bitmap area opaque
mpAlphaVDev->ImplFillOpaqueRectangle( Rectangle(rDestPt, rDestSize) );
}
}
void OutputDevice::ImplDrawBitmap( const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel,
const Bitmap& rBitmap, const sal_uLong nAction )
{
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
Bitmap aBmp( rBitmap );
if ( ( mnDrawMode & DRAWMODE_NOBITMAP ) )
{
return;
}
else if ( ROP_INVERT == meRasterOp )
{
DrawRect( Rectangle( rDestPt, rDestSize ) );
return;
}
else if ( mnDrawMode & ( DRAWMODE_BLACKBITMAP | DRAWMODE_WHITEBITMAP |
DRAWMODE_GRAYBITMAP | DRAWMODE_GHOSTEDBITMAP ) )
{
if ( mnDrawMode & ( DRAWMODE_BLACKBITMAP | DRAWMODE_WHITEBITMAP ) )
{
sal_uInt8 cCmpVal;
if ( mnDrawMode & DRAWMODE_BLACKBITMAP )
cCmpVal = ( mnDrawMode & DRAWMODE_GHOSTEDBITMAP ) ? 0x80 : 0;
else
cCmpVal = 255;
Color aCol( cCmpVal, cCmpVal, cCmpVal );
Push( PUSH_LINECOLOR | PUSH_FILLCOLOR );
SetLineColor( aCol );
SetFillColor( aCol );
DrawRect( Rectangle( rDestPt, rDestSize ) );
Pop();
return;
}
else if( !!aBmp )
{
if ( mnDrawMode & DRAWMODE_GRAYBITMAP )
aBmp.Convert( BMP_CONVERSION_8BIT_GREYS );
if ( mnDrawMode & DRAWMODE_GHOSTEDBITMAP )
aBmp.Convert( BMP_CONVERSION_GHOSTED );
}
}
if ( mpMetaFile )
{
switch( nAction )
{
case( META_BMP_ACTION ):
mpMetaFile->AddAction( new MetaBmpAction( rDestPt, aBmp ) );
break;
case( META_BMPSCALE_ACTION ):
mpMetaFile->AddAction( new MetaBmpScaleAction( rDestPt, rDestSize, aBmp ) );
break;
case( META_BMPSCALEPART_ACTION ):
mpMetaFile->AddAction( new MetaBmpScalePartAction(
rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel, aBmp ) );
break;
}
}
OUTDEV_INIT();
if( !aBmp.IsEmpty() )
{
SalTwoRect aPosAry;
aPosAry.mnSrcX = rSrcPtPixel.X();
aPosAry.mnSrcY = rSrcPtPixel.Y();
aPosAry.mnSrcWidth = rSrcSizePixel.Width();
aPosAry.mnSrcHeight = rSrcSizePixel.Height();
aPosAry.mnDestX = ImplLogicXToDevicePixel( rDestPt.X() );
aPosAry.mnDestY = ImplLogicYToDevicePixel( rDestPt.Y() );
aPosAry.mnDestWidth = ImplLogicWidthToDevicePixel( rDestSize.Width() );
aPosAry.mnDestHeight = ImplLogicHeightToDevicePixel( rDestSize.Height() );
if ( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight )
{
const sal_uLong nMirrFlags = ImplAdjustTwoRect( aPosAry, aBmp.GetSizePixel() );
if ( nMirrFlags )
aBmp.Mirror( nMirrFlags );
/* #i75264# (corrected with #i81576#)
* sometimes a bitmap is scaled to a ridiculous size and drawn
* to a quite normal VDev, so only a very small part of
* the scaled bitmap will be visible. However actually scaling
* the bitmap will use so much memory that we end with a crash.
* Workaround: since only a small part of the scaled bitmap will
* be actually drawn anyway (because of clipping on the device
* boundary), limit the destination and source rectangles so
* that the destination rectangle will overlap the device but only
* be reasonably (say factor 2) larger than the device itself.
*/
if( aPosAry.mnDestWidth > 2048 || aPosAry.mnDestHeight > 2048 )
{
if( meOutDevType == OUTDEV_WINDOW ||
(meOutDevType == OUTDEV_VIRDEV && mpPDFWriter == 0 ) )
{
// #i81576# do the following trick only if there is overlap at all
// else the formulae don't work
// theoretically in this case we wouldn't need to draw the bitmap at all
// however there are some esoteric case where that is needed
if( aPosAry.mnDestX + aPosAry.mnDestWidth >= 0
&& aPosAry.mnDestX < mnOutWidth
&& aPosAry.mnDestY + aPosAry.mnDestHeight >= 0
&& aPosAry.mnDestY < mnOutHeight )
{
// reduce scaling to something reasonable taking into account the output size
if( aPosAry.mnDestWidth > 3*mnOutWidth && aPosAry.mnSrcWidth )
{
const double nScaleX = aPosAry.mnDestWidth/double(aPosAry.mnSrcWidth);
if( aPosAry.mnDestX + aPosAry.mnDestWidth > mnOutWidth )
{
aPosAry.mnDestWidth = Max(long(0),mnOutWidth-aPosAry.mnDestX);
}
if( aPosAry.mnDestX < 0 )
{
aPosAry.mnDestWidth += aPosAry.mnDestX;
aPosAry.mnSrcX -= sal::static_int_cast<long>(aPosAry.mnDestX / nScaleX);
aPosAry.mnDestX = 0;
}
aPosAry.mnSrcWidth = sal::static_int_cast<long>(aPosAry.mnDestWidth / nScaleX);
}
if( aPosAry.mnDestHeight > 3*mnOutHeight && aPosAry.mnSrcHeight != 0 )
{
const double nScaleY = aPosAry.mnDestHeight/double(aPosAry.mnSrcHeight);
if( aPosAry.mnDestY + aPosAry.mnDestHeight > mnOutHeight )
{
aPosAry.mnDestHeight = Max(long(0),mnOutHeight-aPosAry.mnDestY);
}
if( aPosAry.mnDestY < 0 )
{
aPosAry.mnDestHeight += aPosAry.mnDestY;
aPosAry.mnSrcY -= sal::static_int_cast<long>(aPosAry.mnDestY / nScaleY);
aPosAry.mnDestY = 0;
}
aPosAry.mnSrcHeight = sal::static_int_cast<long>(aPosAry.mnDestHeight / nScaleY);
}
}
}
}
if ( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight )
{
const double nScaleX = aPosAry.mnDestWidth / static_cast<double>( aPosAry.mnSrcWidth );
const double nScaleY = aPosAry.mnDestHeight / static_cast<double>( aPosAry.mnSrcHeight );
// If subsampling, use Bitmap::Scale for subsampling for better quality.
if ( meOutDevType != OUTDEV_PRINTER &&
nAction == META_BMPSCALE_ACTION &&
(nScaleX < 1.0 || nScaleY < 1.0) )
{
aBmp.Scale ( nScaleX, nScaleY );
aPosAry.mnSrcWidth = aPosAry.mnDestWidth;
aPosAry.mnSrcHeight = aPosAry.mnDestHeight;
}
mpGraphics->DrawBitmap( &aPosAry, *aBmp.ImplGetImpBitmap()->ImplGetSalBitmap(), this );
}
}
}
}
void OutputDevice::DrawBitmapEx( const Point& rDestPt,
const BitmapEx& rBitmapEx )
{
OSL_TRACE( "OutputDevice::DrawBitmapEx()" );
if( ImplIsRecordLayout() )
return;
if( TRANSPARENT_NONE == rBitmapEx.GetTransparentType() )
DrawBitmap( rDestPt, rBitmapEx.GetBitmap() );
else
{
const Size aSizePix( rBitmapEx.GetSizePixel() );
ImplDrawBitmapEx( rDestPt, PixelToLogic( aSizePix ), Point(), aSizePix, rBitmapEx, META_BMPEX_ACTION );
}
}
void OutputDevice::DrawBitmapEx( const Point& rDestPt, const Size& rDestSize,
const BitmapEx& rBitmapEx )
{
OSL_TRACE( "OutputDevice::DrawBitmapEx( Size )" );
if( ImplIsRecordLayout() )
return;
if ( TRANSPARENT_NONE == rBitmapEx.GetTransparentType() )
DrawBitmap( rDestPt, rDestSize, rBitmapEx.GetBitmap() );
else
ImplDrawBitmapEx( rDestPt, rDestSize, Point(), rBitmapEx.GetSizePixel(), rBitmapEx, META_BMPEXSCALE_ACTION );
}
void OutputDevice::DrawBitmapEx( const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel,
const BitmapEx& rBitmapEx )
{
OSL_TRACE( "OutputDevice::DrawBitmapEx( Point, Size )" );
if( ImplIsRecordLayout() )
return;
if( TRANSPARENT_NONE == rBitmapEx.GetTransparentType() )
DrawBitmap( rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel, rBitmapEx.GetBitmap() );
else
ImplDrawBitmapEx( rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel, rBitmapEx, META_BMPEXSCALEPART_ACTION );
}
void OutputDevice::ImplDrawBitmapEx( const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel,
const BitmapEx& rBitmapEx, const sal_uLong nAction )
{
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
BitmapEx aBmpEx( rBitmapEx );
if ( mnDrawMode & DRAWMODE_NOBITMAP )
return;
else if ( ROP_INVERT == meRasterOp )
{
DrawRect( Rectangle( rDestPt, rDestSize ) );
return;
}
else if ( mnDrawMode & ( DRAWMODE_BLACKBITMAP | DRAWMODE_WHITEBITMAP |
DRAWMODE_GRAYBITMAP | DRAWMODE_GHOSTEDBITMAP ) )
{
if ( mnDrawMode & ( DRAWMODE_BLACKBITMAP | DRAWMODE_WHITEBITMAP ) )
{
Bitmap aColorBmp( aBmpEx.GetSizePixel(), ( mnDrawMode & DRAWMODE_GHOSTEDBITMAP ) ? 4 : 1 );
sal_uInt8 cCmpVal;
if ( mnDrawMode & DRAWMODE_BLACKBITMAP )
cCmpVal = ( mnDrawMode & DRAWMODE_GHOSTEDBITMAP ) ? 0x80 : 0;
else
cCmpVal = 255;
aColorBmp.Erase( Color( cCmpVal, cCmpVal, cCmpVal ) );
if( aBmpEx.IsAlpha() )
{
// Create one-bit mask out of alpha channel, by
// thresholding it at alpha=0.5. As
// DRAWMODE_BLACK/WHITEBITMAP requires monochrome
// output, having alpha-induced grey levels is not
// acceptable.
Bitmap aMask( aBmpEx.GetAlpha().GetBitmap() );
aMask.MakeMono( 129 );
aBmpEx = BitmapEx( aColorBmp, aMask );
}
else
{
aBmpEx = BitmapEx( aColorBmp, aBmpEx.GetMask() );
}
}
else if( !!aBmpEx )
{
if ( mnDrawMode & DRAWMODE_GRAYBITMAP )
aBmpEx.Convert( BMP_CONVERSION_8BIT_GREYS );
if ( mnDrawMode & DRAWMODE_GHOSTEDBITMAP )
aBmpEx.Convert( BMP_CONVERSION_GHOSTED );
}
}
if ( mpMetaFile )
{
switch( nAction )
{
case( META_BMPEX_ACTION ):
mpMetaFile->AddAction( new MetaBmpExAction( rDestPt, aBmpEx ) );
break;
case( META_BMPEXSCALE_ACTION ):
mpMetaFile->AddAction( new MetaBmpExScaleAction( rDestPt, rDestSize, aBmpEx ) );
break;
case( META_BMPEXSCALEPART_ACTION ):
mpMetaFile->AddAction( new MetaBmpExScalePartAction( rDestPt, rDestSize,
rSrcPtPixel, rSrcSizePixel, aBmpEx ) );
break;
}
}
OUTDEV_INIT();
if( OUTDEV_PRINTER == meOutDevType )
{
if( aBmpEx.IsAlpha() )
{
// #107169# For true alpha bitmaps, no longer masking the
// bitmap, but perform a full alpha blend against a white
// background here.
Bitmap aBmp( aBmpEx.GetBitmap() );
aBmp.Blend( aBmpEx.GetAlpha(), Color( COL_WHITE) );
DrawBitmap( rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel, aBmp );
}
else
{
Bitmap aBmp( aBmpEx.GetBitmap() ), aMask( aBmpEx.GetMask() );
aBmp.Replace( aMask, Color( COL_WHITE ) );
ImplPrintTransparent( aBmp, aMask, rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel );
}
return;
}
else if( aBmpEx.IsAlpha() )
{
ImplDrawAlpha( aBmpEx.GetBitmap(), aBmpEx.GetAlpha(), rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel );
return;
}
if( !( !aBmpEx ) )
{
SalTwoRect aPosAry;
aPosAry.mnSrcX = rSrcPtPixel.X();
aPosAry.mnSrcY = rSrcPtPixel.Y();
aPosAry.mnSrcWidth = rSrcSizePixel.Width();
aPosAry.mnSrcHeight = rSrcSizePixel.Height();
aPosAry.mnDestX = ImplLogicXToDevicePixel( rDestPt.X() );
aPosAry.mnDestY = ImplLogicYToDevicePixel( rDestPt.Y() );
aPosAry.mnDestWidth = ImplLogicWidthToDevicePixel( rDestSize.Width() );
aPosAry.mnDestHeight = ImplLogicHeightToDevicePixel( rDestSize.Height() );
const sal_uLong nMirrFlags = ImplAdjustTwoRect( aPosAry, aBmpEx.GetSizePixel() );
if( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight )
{
if( nMirrFlags )
aBmpEx.Mirror( nMirrFlags );
const ImpBitmap* pImpBmp = aBmpEx.ImplGetBitmapImpBitmap();
const ImpBitmap* pMaskBmp = aBmpEx.ImplGetMaskImpBitmap();
if ( pMaskBmp )
{
// #4919452# reduce operation area to bounds of
// cliprect. since masked transparency involves
// creation of a large vdev and copying the screen
// content into that (slooow read from framebuffer),
// that should considerably increase performance for
// large bitmaps and small clippings.
// Note that this optimisation is a workaround for a
// Writer peculiarity, namely, to decompose background
// graphics into myriads of disjunct, tiny
// rectangles. That otherwise kills us here, since for
// transparent output, SAL always prepares the whole
// bitmap, if aPosAry contains the whole bitmap (and
// it's _not_ to blame for that).
// Note the call to ImplPixelToDevicePixel(), since
// aPosAry already contains the mnOutOff-offsets, they
// also have to be applied to the region
Rectangle aClipRegionBounds( ImplPixelToDevicePixel(maRegion).GetBoundRect() );
// TODO: Also respect scaling (that's a bit tricky,
// since the source points have to move fractional
// amounts (which is not possible, thus has to be
// emulated by increases copy area)
// const double nScaleX( aPosAry.mnDestWidth / aPosAry.mnSrcWidth );
// const double nScaleY( aPosAry.mnDestHeight / aPosAry.mnSrcHeight );
// for now, only identity scales allowed
if( !aClipRegionBounds.IsEmpty() &&
aPosAry.mnDestWidth == aPosAry.mnSrcWidth &&
aPosAry.mnDestHeight == aPosAry.mnSrcHeight )
{
// now intersect dest rect with clip region
aClipRegionBounds.Intersection( Rectangle( aPosAry.mnDestX,
aPosAry.mnDestY,
aPosAry.mnDestX + aPosAry.mnDestWidth - 1,
aPosAry.mnDestY + aPosAry.mnDestHeight - 1 ) );
// Note: I could theoretically optimize away the
// DrawBitmap below, if the region is empty
// here. Unfortunately, cannot rule out that
// somebody relies on the side effects.
if( !aClipRegionBounds.IsEmpty() )
{
aPosAry.mnSrcX += aClipRegionBounds.Left() - aPosAry.mnDestX;
aPosAry.mnSrcY += aClipRegionBounds.Top() - aPosAry.mnDestY;
aPosAry.mnSrcWidth = aClipRegionBounds.GetWidth();
aPosAry.mnSrcHeight = aClipRegionBounds.GetHeight();
aPosAry.mnDestX = aClipRegionBounds.Left();
aPosAry.mnDestY = aClipRegionBounds.Top();
aPosAry.mnDestWidth = aClipRegionBounds.GetWidth();
aPosAry.mnDestHeight = aClipRegionBounds.GetHeight();
}
}
mpGraphics->DrawBitmap( &aPosAry, *pImpBmp->ImplGetSalBitmap(),
*pMaskBmp->ImplGetSalBitmap(),
this );
// #110958# Paint mask to alpha channel. Luckily, the
// black and white representation of the mask maps to
// the alpha channel
// #i25167# Restrict mask painting to _opaque_ areas
// of the mask, otherwise we spoil areas where no
// bitmap content was ever visible. Interestingly
// enough, this can be achieved by taking the mask as
// the transparency mask of itself
if( mpAlphaVDev )
mpAlphaVDev->DrawBitmapEx( rDestPt,
rDestSize,
BitmapEx( aBmpEx.GetMask(),
aBmpEx.GetMask() ) );
}
else
{
mpGraphics->DrawBitmap( &aPosAry, *pImpBmp->ImplGetSalBitmap(), this );
if( mpAlphaVDev )
{
// #i32109#: Make bitmap area opaque
mpAlphaVDev->ImplFillOpaqueRectangle( Rectangle(rDestPt, rDestSize) );
}
}
}
}
}
void OutputDevice::DrawMask( const Point& rDestPt,
const Bitmap& rBitmap, const Color& rMaskColor )
{
OSL_TRACE( "OutputDevice::DrawMask()" );
if( ImplIsRecordLayout() )
return;
const Size aSizePix( rBitmap.GetSizePixel() );
ImplDrawMask( rDestPt, PixelToLogic( aSizePix ), Point(), aSizePix, rBitmap, rMaskColor, META_MASK_ACTION );
if( mpAlphaVDev )
{
const Bitmap& rMask( rBitmap.CreateMask( rMaskColor ) );
// #i25167# Restrict mask painting to _opaque_ areas
// of the mask, otherwise we spoil areas where no
// bitmap content was ever visible. Interestingly
// enough, this can be achieved by taking the mask as
// the transparency mask of itself
mpAlphaVDev->DrawBitmapEx( rDestPt,
PixelToLogic( aSizePix ),
BitmapEx( rMask, rMask ) );
}
}
void OutputDevice::DrawMask( const Point& rDestPt, const Size& rDestSize,
const Bitmap& rBitmap, const Color& rMaskColor )
{
OSL_TRACE( "OutputDevice::DrawMask( Size )" );
if( ImplIsRecordLayout() )
return;
ImplDrawMask( rDestPt, rDestSize, Point(), rBitmap.GetSizePixel(), rBitmap, rMaskColor, META_MASKSCALE_ACTION );
// TODO: Use mask here
if( mpAlphaVDev )
{
const Bitmap& rMask( rBitmap.CreateMask( rMaskColor ) );
// #i25167# Restrict mask painting to _opaque_ areas
// of the mask, otherwise we spoil areas where no
// bitmap content was ever visible. Interestingly
// enough, this can be achieved by taking the mask as
// the transparency mask of itself
mpAlphaVDev->DrawBitmapEx( rDestPt,
rDestSize,
BitmapEx( rMask, rMask ) );
}
}
void OutputDevice::DrawMask( const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel,
const Bitmap& rBitmap, const Color& rMaskColor )
{
OSL_TRACE( "OutputDevice::DrawMask( Point, Size )" );
if( ImplIsRecordLayout() )
return;
ImplDrawMask( rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel, rBitmap, rMaskColor, META_MASKSCALEPART_ACTION );
// TODO: Use mask here
if( mpAlphaVDev )
{
const Bitmap& rMask( rBitmap.CreateMask( rMaskColor ) );
// #i25167# Restrict mask painting to _opaque_ areas
// of the mask, otherwise we spoil areas where no
// bitmap content was ever visible. Interestingly
// enough, this can be achieved by taking the mask as
// the transparency mask of itself
mpAlphaVDev->DrawBitmapEx( rDestPt,
rDestSize,
rSrcPtPixel,
rSrcSizePixel,
BitmapEx( rMask, rMask ) );
}
}
void OutputDevice::ImplDrawMask( const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel,
const Bitmap& rBitmap, const Color& rMaskColor,
const sal_uLong nAction )
{
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
if( ROP_INVERT == meRasterOp )
{
DrawRect( Rectangle( rDestPt, rDestSize ) );
return;
}
if ( mpMetaFile )
{
switch( nAction )
{
case( META_MASK_ACTION ):
mpMetaFile->AddAction( new MetaMaskAction( rDestPt,
rBitmap, rMaskColor ) );
break;
case( META_MASKSCALE_ACTION ):
mpMetaFile->AddAction( new MetaMaskScaleAction( rDestPt,
rDestSize, rBitmap, rMaskColor ) );
break;
case( META_MASKSCALEPART_ACTION ):
mpMetaFile->AddAction( new MetaMaskScalePartAction( rDestPt, rDestSize,
rSrcPtPixel, rSrcSizePixel, rBitmap, rMaskColor ) );
break;
}
}
OUTDEV_INIT();
if ( OUTDEV_PRINTER == meOutDevType )
{
ImplPrintMask( rBitmap, rMaskColor, rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel );
return;
}
const ImpBitmap* pImpBmp = rBitmap.ImplGetImpBitmap();
if ( pImpBmp )
{
SalTwoRect aPosAry;
aPosAry.mnSrcX = rSrcPtPixel.X();
aPosAry.mnSrcY = rSrcPtPixel.Y();
aPosAry.mnSrcWidth = rSrcSizePixel.Width();
aPosAry.mnSrcHeight = rSrcSizePixel.Height();
aPosAry.mnDestX = ImplLogicXToDevicePixel( rDestPt.X() );
aPosAry.mnDestY = ImplLogicYToDevicePixel( rDestPt.Y() );
aPosAry.mnDestWidth = ImplLogicWidthToDevicePixel( rDestSize.Width() );
aPosAry.mnDestHeight = ImplLogicHeightToDevicePixel( rDestSize.Height() );
// we don't want to mirror via cooridates
const sal_uLong nMirrFlags = ImplAdjustTwoRect( aPosAry, pImpBmp->ImplGetSize() );
// check if output is necessary
if( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight )
{
if( nMirrFlags )
{
Bitmap aTmp( rBitmap );
aTmp.Mirror( nMirrFlags );
mpGraphics->DrawMask( &aPosAry, *aTmp.ImplGetImpBitmap()->ImplGetSalBitmap(),
ImplColorToSal( rMaskColor ) , this);
}
else
mpGraphics->DrawMask( &aPosAry, *pImpBmp->ImplGetSalBitmap(),
ImplColorToSal( rMaskColor ), this );
}
}
}
namespace
{
BitmapEx makeDisabledBitmap(const Bitmap &rBitmap)
{
const Size aTotalSize( rBitmap.GetSizePixel() );
Bitmap aGrey( aTotalSize, 8, &Bitmap::GetGreyPalette( 256 ) );
AlphaMask aGreyAlphaMask( aTotalSize );
BitmapReadAccess* pBmp = const_cast<Bitmap&>(rBitmap).AcquireReadAccess();
BitmapWriteAccess* pGrey = aGrey.AcquireWriteAccess();
BitmapWriteAccess* pGreyAlphaMask = aGreyAlphaMask.AcquireWriteAccess();
if( pBmp && pGrey && pGreyAlphaMask )
{
BitmapColor aGreyVal( 0 );
BitmapColor aGreyAlphaMaskVal( 0 );
const int nLeft = 0, nRight = aTotalSize.Width();
const int nTop = 0, nBottom = nTop + aTotalSize.Height();
for( int nY = nTop; nY < nBottom; ++nY )
{
for( int nX = nLeft; nX < nRight; ++nX )
{
aGreyVal.SetIndex( pBmp->GetLuminance( nY, nX ) );
pGrey->SetPixel( nY, nX, aGreyVal );
aGreyAlphaMaskVal.SetIndex( static_cast< sal_uInt8 >( 128ul ) );
pGreyAlphaMask->SetPixel( nY, nX, aGreyAlphaMaskVal );
}
}
}
const_cast<Bitmap&>(rBitmap).ReleaseAccess( pBmp );
aGrey.ReleaseAccess( pGrey );
aGreyAlphaMask.ReleaseAccess( pGreyAlphaMask );
return BitmapEx( aGrey, aGreyAlphaMask );
}
}
void OutputDevice::DrawImage( const Point& rPos, const Image& rImage, sal_uInt16 nStyle )
{
DBG_ASSERT( GetOutDevType() != OUTDEV_PRINTER, "DrawImage(): Images can't be drawn on any mprinter" );
if( !rImage.mpImplData || ImplIsRecordLayout() )
return;
switch( rImage.mpImplData->meType )
{
case IMAGETYPE_BITMAP:
{
const Bitmap &rBitmap = *static_cast< Bitmap* >( rImage.mpImplData->mpData );
if( nStyle & IMAGE_DRAW_DISABLE )
DrawBitmapEx( rPos, makeDisabledBitmap(rBitmap) );
else
DrawBitmap( rPos, rBitmap );
}
break;
case IMAGETYPE_IMAGE:
{
ImplImageData* pData = static_cast< ImplImageData* >( rImage.mpImplData->mpData );
if( !pData->mpImageBitmap )
{
const Size aSize( pData->maBmpEx.GetSizePixel() );
pData->mpImageBitmap = new ImplImageBmp;
pData->mpImageBitmap->Create( pData->maBmpEx, aSize.Width(), aSize.Height(), 1 );
}
pData->mpImageBitmap->Draw( 0, this, rPos, nStyle );
}
break;
default:
break;
}
}
void OutputDevice::DrawImage( const Point& rPos, const Size& rSize,
const Image& rImage, sal_uInt16 nStyle )
{
DBG_ASSERT( GetOutDevType() != OUTDEV_PRINTER, "DrawImage(): Images can't be drawn on any mprinter" );
if( rImage.mpImplData && !ImplIsRecordLayout() )
{
switch( rImage.mpImplData->meType )
{
case IMAGETYPE_BITMAP:
{
const Bitmap &rBitmap = *static_cast< Bitmap* >( rImage.mpImplData->mpData );
if( nStyle & IMAGE_DRAW_DISABLE )
DrawBitmapEx( rPos, rSize, makeDisabledBitmap(rBitmap) );
else
DrawBitmap( rPos, rSize, rBitmap );
}
break;
case IMAGETYPE_IMAGE:
{
ImplImageData* pData = static_cast< ImplImageData* >( rImage.mpImplData->mpData );
if ( !pData->mpImageBitmap )
{
const Size aSize( pData->maBmpEx.GetSizePixel() );
pData->mpImageBitmap = new ImplImageBmp;
pData->mpImageBitmap->Create( pData->maBmpEx, aSize.Width(), aSize.Height(), 1 );
}
pData->mpImageBitmap->Draw( 0, this, rPos, nStyle, &rSize );
}
break;
default:
break;
}
}
}
Bitmap OutputDevice::GetBitmap( const Point& rSrcPt, const Size& rSize ) const
{
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
Bitmap aBmp;
long nX = ImplLogicXToDevicePixel( rSrcPt.X() );
long nY = ImplLogicYToDevicePixel( rSrcPt.Y() );
long nWidth = ImplLogicWidthToDevicePixel( rSize.Width() );
long nHeight = ImplLogicHeightToDevicePixel( rSize.Height() );
if ( mpGraphics || ( (OutputDevice*) this )->ImplGetGraphics() )
{
if ( nWidth && nHeight )
{
Rectangle aRect( Point( nX, nY ), Size( nWidth, nHeight ) );
bool bClipped = false;
// X-Coordinate outside of draw area?
if ( nX < mnOutOffX )
{
nWidth -= ( mnOutOffX - nX );
nX = mnOutOffX;
bClipped = true;
}
// Y-Coordinate outside of draw area?
if ( nY < mnOutOffY )
{
nHeight -= ( mnOutOffY - nY );
nY = mnOutOffY;
bClipped = true;
}
// Width outside of draw area?
if ( (nWidth + nX) > (mnOutWidth + mnOutOffX) )
{
nWidth = mnOutOffX + mnOutWidth - nX;
bClipped = true;
}
// Height outside of draw area?
if ( (nHeight + nY) > (mnOutHeight + mnOutOffY) )
{
nHeight = mnOutOffY + mnOutHeight - nY;
bClipped = true;
}
if ( bClipped )
{
// If the visible part has been clipped, we have to create a
// Bitmap with the correct size in which we copy the clipped
// Bitmap to the correct position.
VirtualDevice aVDev( *this );
if ( aVDev.SetOutputSizePixel( aRect.GetSize() ) )
{
if ( ((OutputDevice*)&aVDev)->mpGraphics || ((OutputDevice*)&aVDev)->ImplGetGraphics() )
{
SalTwoRect aPosAry;
aPosAry.mnSrcX = nX;
aPosAry.mnSrcY = nY;
aPosAry.mnSrcWidth = nWidth;
aPosAry.mnSrcHeight = nHeight;
aPosAry.mnDestX = ( aRect.Left() < mnOutOffX ) ? ( mnOutOffX - aRect.Left() ) : 0L;
aPosAry.mnDestY = ( aRect.Top() < mnOutOffY ) ? ( mnOutOffY - aRect.Top() ) : 0L;
aPosAry.mnDestWidth = nWidth;
aPosAry.mnDestHeight = nHeight;
if ( (nWidth > 0) && (nHeight > 0) )
(((OutputDevice*)&aVDev)->mpGraphics)->CopyBits( &aPosAry, mpGraphics, this, this );
aBmp = aVDev.GetBitmap( Point(), aVDev.GetOutputSizePixel() );
}
else
bClipped = false;
}
else
bClipped = false;
}
if ( !bClipped )
{
SalBitmap* pSalBmp = mpGraphics->GetBitmap( nX, nY, nWidth, nHeight, this );
if( pSalBmp )
{
ImpBitmap* pImpBmp = new ImpBitmap;
pImpBmp->ImplSetSalBitmap( pSalBmp );
aBmp.ImplSetImpBitmap( pImpBmp );
}
}
}
}
return aBmp;
}
BitmapEx OutputDevice::GetBitmapEx( const Point& rSrcPt, const Size& rSize ) const
{
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
// #110958# Extract alpha value from VDev, if any
if( mpAlphaVDev )
{
Bitmap aAlphaBitmap( mpAlphaVDev->GetBitmap( rSrcPt, rSize ) );
// ensure 8 bit alpha
if( aAlphaBitmap.GetBitCount() > 8 )
aAlphaBitmap.Convert( BMP_CONVERSION_8BIT_GREYS );
return BitmapEx(GetBitmap( rSrcPt, rSize ), AlphaMask( aAlphaBitmap ) );
}
else
return GetBitmap( rSrcPt, rSize );
}
Color OutputDevice::GetPixel( const Point& rPt ) const
{
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
Color aColor;
if ( mpGraphics || ((OutputDevice*)this)->ImplGetGraphics() )
{
if ( mbInitClipRegion )
((OutputDevice*)this)->ImplInitClipRegion();
if ( !mbOutputClipped )
{
const long nX = ImplLogicXToDevicePixel( rPt.X() );
const long nY = ImplLogicYToDevicePixel( rPt.Y() );
const SalColor aSalCol = mpGraphics->GetPixel( nX, nY, this );
aColor.SetRed( SALCOLOR_RED( aSalCol ) );
aColor.SetGreen( SALCOLOR_GREEN( aSalCol ) );
aColor.SetBlue( SALCOLOR_BLUE( aSalCol ) );
}
}
return aColor;
}
void OutputDevice::DrawPixel( const Point& rPt )
{
OSL_TRACE( "OutputDevice::DrawPixel()" );
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
if ( mpMetaFile )
mpMetaFile->AddAction( new MetaPointAction( rPt ) );
if ( !IsDeviceOutputNecessary() || !mbLineColor || ImplIsRecordLayout() )
return;
Point aPt = ImplLogicToDevicePixel( rPt );
if ( !mpGraphics )
{
if ( !ImplGetGraphics() )
return;
}
if ( mbInitClipRegion )
ImplInitClipRegion();
if ( mbOutputClipped )
return;
if ( mbInitLineColor )
ImplInitLineColor();
mpGraphics->DrawPixel( aPt.X(), aPt.Y(), this );
if( mpAlphaVDev )
mpAlphaVDev->DrawPixel( rPt );
}
void OutputDevice::DrawPixel( const Point& rPt, const Color& rColor )
{
OSL_TRACE( "OutputDevice::DrawPixel()" );
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
Color aColor = ImplDrawModeToColor( rColor );
if ( mpMetaFile )
mpMetaFile->AddAction( new MetaPixelAction( rPt, aColor ) );
if ( !IsDeviceOutputNecessary() || ImplIsColorTransparent( aColor ) || ImplIsRecordLayout() )
return;
Point aPt = ImplLogicToDevicePixel( rPt );
if ( !mpGraphics )
{
if ( !ImplGetGraphics() )
return;
}
if ( mbInitClipRegion )
ImplInitClipRegion();
if ( mbOutputClipped )
return;
mpGraphics->DrawPixel( aPt.X(), aPt.Y(), ImplColorToSal( aColor ), this );
if( mpAlphaVDev )
mpAlphaVDev->DrawPixel( rPt );
}
void OutputDevice::DrawPixel( const Polygon& rPts, const Color* pColors )
{
if ( !pColors )
DrawPixel( rPts, GetLineColor() );
else
{
OSL_TRACE( "OutputDevice::DrawPixel()" );
DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
DBG_ASSERT( pColors, "OutputDevice::DrawPixel: No color array specified" );
const sal_uInt16 nSize = rPts.GetSize();
if ( nSize )
{
if ( mpMetaFile )
for ( sal_uInt16 i = 0; i < nSize; i++ )
mpMetaFile->AddAction( new MetaPixelAction( rPts[ i ], pColors[ i ] ) );
if ( !IsDeviceOutputNecessary() || ImplIsRecordLayout() )
return;
if ( mpGraphics || ImplGetGraphics() )
{
if ( mbInitClipRegion )
ImplInitClipRegion();
if ( mbOutputClipped )
return;
for ( sal_uInt16 i = 0; i < nSize; i++ )
{
const Point aPt( ImplLogicToDevicePixel( rPts[ i ] ) );
mpGraphics->DrawPixel( aPt.X(), aPt.Y(), ImplColorToSal( pColors[ i ] ), this );
}
}
}
}
if( mpAlphaVDev )
mpAlphaVDev->DrawPixel( rPts, pColors );
}
void OutputDevice::DrawPixel( const Polygon& rPts, const Color& rColor )
{
if( rColor != COL_TRANSPARENT && ! ImplIsRecordLayout() )
{
const sal_uInt16 nSize = rPts.GetSize();
Color* pColArray = new Color[ nSize ];
for( sal_uInt16 i = 0; i < nSize; i++ )
pColArray[ i ] = rColor;
DrawPixel( rPts, pColArray );
delete[] pColArray;
}
if( mpAlphaVDev )
mpAlphaVDev->DrawPixel( rPts, rColor );
}
namespace
{
// Co = Cs + Cd*(1-As) premultiplied alpha -or-
// Co = (AsCs + AdCd*(1-As)) / Ao
inline sal_uInt8 lcl_calcColor( const sal_uInt8 nSourceColor, const sal_uInt8 nSourceAlpha,
const sal_uInt8 nDstAlpha, const sal_uInt8 nResAlpha, const sal_uInt8 nDestColor )
{
int c = nResAlpha ? ( (int)nSourceAlpha*nSourceColor + (int)nDstAlpha*nDestColor -
(int)nDstAlpha*nDestColor*nSourceAlpha/255 ) / (int)nResAlpha : 0;
return sal_uInt8( c );
}
inline BitmapColor lcl_AlphaBlend( int nX, int nY,
const long nMapX,
const long nMapY,
BitmapReadAccess* pP,
BitmapReadAccess* pA,
BitmapReadAccess* pB,
BitmapWriteAccess* pAlphaW,
sal_uInt8& nResAlpha )
{
BitmapColor aDstCol,aSrcCol;
aSrcCol = pP->GetColor( nMapY, nMapX );
aDstCol = pB->GetColor( nY, nX );
// vcl stores transparency, not alpha - invert it
const sal_uInt8 nSrcAlpha = 255 - pA->GetPixel( nMapY, nMapX ).GetBlueOrIndex();
const sal_uInt8 nDstAlpha = 255 - pAlphaW->GetPixel( nY, nX ).GetBlueOrIndex();
// Perform porter-duff compositing 'over' operation
//
// Co = Cs + Cd*(1-As)
// Ad = As + Ad*(1-As)
nResAlpha = (int)nSrcAlpha + (int)nDstAlpha - (int)nDstAlpha*nSrcAlpha/255;
aDstCol.SetRed( lcl_calcColor( aSrcCol.GetRed(), nSrcAlpha, nDstAlpha, nResAlpha, aDstCol.GetRed() ) );
aDstCol.SetBlue( lcl_calcColor( aSrcCol.GetBlue(), nSrcAlpha, nDstAlpha, nResAlpha, aDstCol.GetBlue() ) );
aDstCol.SetGreen( lcl_calcColor( aSrcCol.GetGreen(), nSrcAlpha, nDstAlpha, nResAlpha, aDstCol.GetGreen() ) );
return aDstCol;
}
}
Bitmap OutputDevice::ImplBlendWithAlpha( Bitmap aBmp,
BitmapReadAccess* pP,
BitmapReadAccess* pA,
const Rectangle& aDstRect,
const sal_Int32 nOffY,
const sal_Int32 nDstHeight,
const sal_Int32 nOffX,
const sal_Int32 nDstWidth,
const long* pMapX,
const long* pMapY )
{
BitmapColor aDstCol;
Bitmap res;
int nX, nY;
sal_uInt8 nResAlpha;
OSL_ENSURE(mpAlphaVDev,
"ImplBlendWithAlpha(): call me only with valid alpha VDev!" );
bool bOldMapMode( mpAlphaVDev->IsMapModeEnabled() );
mpAlphaVDev->EnableMapMode(sal_False);
Bitmap aAlphaBitmap( mpAlphaVDev->GetBitmap( aDstRect.TopLeft(), aDstRect.GetSize() ) );
BitmapWriteAccess* pAlphaW = aAlphaBitmap.AcquireWriteAccess();
if( GetBitCount() <= 8 )
{
Bitmap aDither( aBmp.GetSizePixel(), 8 );
BitmapColor aIndex( 0 );
BitmapReadAccess* pB = aBmp.AcquireReadAccess();
BitmapWriteAccess* pW = aDither.AcquireWriteAccess();
if( pB && pP && pA && pW && pAlphaW )
{
int nOutY;
for( nY = 0, nOutY = nOffY; nY < nDstHeight; nY++, nOutY++ )
{
const long nMapY = pMapY[ nY ];
const long nModY = ( nOutY & 0x0FL ) << 4L;
int nOutX;
for( nX = 0, nOutX = nOffX; nX < nDstWidth; nX++, nOutX++ )
{
const long nMapX = pMapX[ nX ];
const sal_uLong nD = nVCLDitherLut[ nModY | ( nOutX & 0x0FL ) ];
aDstCol = lcl_AlphaBlend( nX, nY, nMapX, nMapY, pP, pA, pB, pAlphaW, nResAlpha );
aIndex.SetIndex( (sal_uInt8) ( nVCLRLut[ ( nVCLLut[ aDstCol.GetRed() ] + nD ) >> 16UL ] +
nVCLGLut[ ( nVCLLut[ aDstCol.GetGreen() ] + nD ) >> 16UL ] +
nVCLBLut[ ( nVCLLut[ aDstCol.GetBlue() ] + nD ) >> 16UL ] ) );
pW->SetPixel( nY, nX, aIndex );
aIndex.SetIndex( (sal_uInt8) ( nVCLRLut[ ( nVCLLut[ 255-nResAlpha ] + nD ) >> 16UL ] +
nVCLGLut[ ( nVCLLut[ 255-nResAlpha ] + nD ) >> 16UL ] +
nVCLBLut[ ( nVCLLut[ 255-nResAlpha ] + nD ) >> 16UL ] ) );
pAlphaW->SetPixel( nY, nX, aIndex );
}
}
}
aBmp.ReleaseAccess( pB );
aDither.ReleaseAccess( pW );
res = aDither;
}
else
{
BitmapWriteAccess* pB = aBmp.AcquireWriteAccess();
if( pP && pA && pB )
{
for( nY = 0; nY < nDstHeight; nY++ )
{
const long nMapY = pMapY[ nY ];
for( nX = 0; nX < nDstWidth; nX++ )
{
const long nMapX = pMapX[ nX ];
aDstCol = lcl_AlphaBlend( nX, nY, nMapX, nMapY, pP, pA, pB, pAlphaW, nResAlpha );
pB->SetPixel( nY, nX, aDstCol );
pAlphaW->SetPixel( nY, nX, Color(255L-nResAlpha, 255L-nResAlpha, 255L-nResAlpha) );
}
}
}
aBmp.ReleaseAccess( pB );
res = aBmp;
}
aAlphaBitmap.ReleaseAccess( pAlphaW );
mpAlphaVDev->DrawBitmap( aDstRect.TopLeft(), aAlphaBitmap );
mpAlphaVDev->EnableMapMode( bOldMapMode );
return res;
}
Bitmap OutputDevice::ImplBlend( Bitmap aBmp,
BitmapReadAccess* pP,
BitmapReadAccess* pA,
const sal_Int32 nOffY,
const sal_Int32 nDstHeight,
const sal_Int32 nOffX,
const sal_Int32 nDstWidth,
const Rectangle& aBmpRect,
const Size& aOutSz,
const bool bHMirr,
const bool bVMirr,
const long* pMapX,
const long* pMapY )
{
BitmapColor aDstCol;
Bitmap res;
int nX, nY;
if( GetBitCount() <= 8 )
{
Bitmap aDither( aBmp.GetSizePixel(), 8 );
BitmapColor aIndex( 0 );
BitmapReadAccess* pB = aBmp.AcquireReadAccess();
BitmapWriteAccess* pW = aDither.AcquireWriteAccess();
if( pB && pP && pA && pW )
{
int nOutY;
for( nY = 0, nOutY = nOffY; nY < nDstHeight; nY++, nOutY++ )
{
const long nMapY = pMapY[ nY ];
const long nModY = ( nOutY & 0x0FL ) << 4L;
int nOutX;
for( nX = 0, nOutX = nOffX; nX < nDstWidth; nX++, nOutX++ )
{
const long nMapX = pMapX[ nX ];
const sal_uLong nD = nVCLDitherLut[ nModY | ( nOutX & 0x0FL ) ];
aDstCol = pB->GetColor( nY, nX );
aDstCol.Merge( pP->GetColor( nMapY, nMapX ), (sal_uInt8) pA->GetPixel( nMapY, nMapX ) );
aIndex.SetIndex( (sal_uInt8) ( nVCLRLut[ ( nVCLLut[ aDstCol.GetRed() ] + nD ) >> 16UL ] +
nVCLGLut[ ( nVCLLut[ aDstCol.GetGreen() ] + nD ) >> 16UL ] +
nVCLBLut[ ( nVCLLut[ aDstCol.GetBlue() ] + nD ) >> 16UL ] ) );
pW->SetPixel( nY, nX, aIndex );
}
}
}
aBmp.ReleaseAccess( pB );
aDither.ReleaseAccess( pW );
res = aDither;
}
else
{
BitmapWriteAccess* pB = aBmp.AcquireWriteAccess();
bool bFastBlend = false;
if( pP && pA && pB )
{
SalTwoRect aTR;
aTR.mnSrcX = aBmpRect.Left();
aTR.mnSrcY = aBmpRect.Top();
aTR.mnSrcWidth = aBmpRect.GetWidth();
aTR.mnSrcHeight = aBmpRect.GetHeight();
aTR.mnDestX = nOffX;
aTR.mnDestY = nOffY;
aTR.mnDestWidth = aOutSz.Width();
aTR.mnDestHeight= aOutSz.Height();
if( !bHMirr && !bVMirr )
bFastBlend = ImplFastBitmapBlending( *pB,*pP,*pA, aTR );
}
if( pP && pA && pB && !bFastBlend )
{
switch( pP->GetScanlineFormat() )
{
case( BMP_FORMAT_8BIT_PAL ):
{
for( nY = 0; nY < nDstHeight; nY++ )
{
const long nMapY = pMapY[ nY ];
Scanline pPScan = pP->GetScanline( nMapY );
Scanline pAScan = pA->GetScanline( nMapY );
for( nX = 0; nX < nDstWidth; nX++ )
{
const long nMapX = pMapX[ nX ];
aDstCol = pB->GetPixel( nY, nX );
pB->SetPixel( nY, nX, aDstCol.Merge( pP->GetPaletteColor( pPScan[ nMapX ] ),
pAScan[ nMapX ] ) );
}
}
}
break;
case( BMP_FORMAT_24BIT_TC_BGR ):
{
for( nY = 0; nY < nDstHeight; nY++ )
{
const long nMapY = pMapY[ nY ];
Scanline pPScan = pP->GetScanline( nMapY );
Scanline pAScan = pA->GetScanline( nMapY );
for( nX = 0; nX < nDstWidth; nX++ )
{
const long nMapX = pMapX[ nX ];
Scanline pTmp = pPScan + nMapX * 3;
aDstCol = pB->GetPixel( nY, nX );
pB->SetPixel( nY, nX, aDstCol.Merge( pTmp[ 2 ], pTmp[ 1 ], pTmp[ 0 ],
pAScan[ nMapX ] ) );
}
}
}
break;
case( BMP_FORMAT_24BIT_TC_RGB ):
{
for( nY = 0; nY < nDstHeight; nY++ )
{
const long nMapY = pMapY[ nY ];
Scanline pPScan = pP->GetScanline( nMapY );
Scanline pAScan = pA->GetScanline( nMapY );
for( nX = 0; nX < nDstWidth; nX++ )
{
const long nMapX = pMapX[ nX ];
Scanline pTmp = pPScan + nMapX * 3;
aDstCol = pB->GetPixel( nY, nX );
pB->SetPixel( nY, nX, aDstCol.Merge( pTmp[ 0 ], pTmp[ 1 ], pTmp[ 2 ],
pAScan[ nMapX ] ) );
}
}
}
break;
default:
{
for( nY = 0; nY < nDstHeight; nY++ )
{
const long nMapY = pMapY[ nY ];
Scanline pAScan = pA->GetScanline( nMapY );
for( nX = 0; nX < nDstWidth; nX++ )
{
const long nMapX = pMapX[ nX ];
aDstCol = pB->GetPixel( nY, nX );
pB->SetPixel( nY, nX, aDstCol.Merge( pP->GetColor( nMapY, nMapX ),
pAScan[ nMapX ] ) );
}
}
}
break;
}
}
aBmp.ReleaseAccess( pB );
res = aBmp;
}
return res;
}
void OutputDevice::ImplDrawAlpha( const Bitmap& rBmp, const AlphaMask& rAlpha,
const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel )
{
const Point aNullPt;
Point aOutPt( LogicToPixel( rDestPt ) );
Size aOutSz( LogicToPixel( rDestSize ) );
Rectangle aDstRect( aNullPt, GetOutputSizePixel() );
const bool bHMirr = aOutSz.Width() < 0;
const bool bVMirr = aOutSz.Height() < 0;
if( OUTDEV_WINDOW == meOutDevType )
{
const Region aPaintRgn( ( (Window*) this )->GetPaintRegion() );
if( !aPaintRgn.IsNull() )
aDstRect.Intersection( LogicToPixel( aPaintRgn.GetBoundRect() ) );
}
if( bHMirr )
{
aOutSz.Width() = -aOutSz.Width();
aOutPt.X() -= ( aOutSz.Width() - 1L );
}
if( bVMirr )
{
aOutSz.Height() = -aOutSz.Height();
aOutPt.Y() -= ( aOutSz.Height() - 1L );
}
if( !aDstRect.Intersection( Rectangle( aOutPt, aOutSz ) ).IsEmpty() )
{
bool bNativeAlpha = false;
static const char* pDisableNative = getenv( "SAL_DISABLE_NATIVE_ALPHA");
// #i83087# Naturally, system alpha blending cannot work with
// separate alpha VDev
if( !mpAlphaVDev && !pDisableNative && !bHMirr && !bVMirr )
{
Point aRelPt = aOutPt + Point( mnOutOffX, mnOutOffY );
SalTwoRect aTR = {
rSrcPtPixel.X(), rSrcPtPixel.Y(),
rSrcSizePixel.Width(), rSrcSizePixel.Height(),
aRelPt.X(), aRelPt.Y(),
aOutSz.Width(), aOutSz.Height()
};
SalBitmap* pSalSrcBmp = rBmp.ImplGetImpBitmap()->ImplGetSalBitmap();
SalBitmap* pSalAlphaBmp = rAlpha.ImplGetImpBitmap()->ImplGetSalBitmap();
bNativeAlpha = mpGraphics->DrawAlphaBitmap( aTR, *pSalSrcBmp, *pSalAlphaBmp, this );
}
VirtualDevice* pOldVDev = mpAlphaVDev;
Rectangle aBmpRect( aNullPt, rBmp.GetSizePixel() );
if( !bNativeAlpha
&& !aBmpRect.Intersection( Rectangle( rSrcPtPixel, rSrcSizePixel ) ).IsEmpty() )
{
GDIMetaFile* pOldMetaFile = mpMetaFile;
const bool bOldMap = mbMap;
Bitmap aBmp( GetBitmap( aDstRect.TopLeft(), aDstRect.GetSize() ) );
mpMetaFile = NULL;
mbMap = false;
// #109044# The generated bitmap need not necessarily be
// of aDstRect dimensions, it's internally clipped to
// window bounds. Thus, we correct the dest size here,
// since we later use it (in nDstWidth/Height) for pixel
// access)
// #i38887# reading from screen may sometimes fail
if( aBmp.ImplGetImpBitmap() )
aDstRect.SetSize( aBmp.GetSizePixel() );
BitmapColor aDstCol;
const long nSrcWidth = aBmpRect.GetWidth(), nSrcHeight = aBmpRect.GetHeight();
const long nDstWidth = aDstRect.GetWidth(), nDstHeight = aDstRect.GetHeight();
const long nOutWidth = aOutSz.Width(), nOutHeight = aOutSz.Height();
// calculate offset in original bitmap
// in RTL case this is a little more complicated since the contents of the
// bitmap is not mirrored (it never is), however the paint region and bmp region
// are in mirrored coordinates, so the intersection of (aOutPt,aOutSz) with these
// is content wise somewhere else and needs to take mirroring into account
const long nOffX = IsRTLEnabled()
? aOutSz.Width() - aDstRect.GetWidth() - (aDstRect.Left() - aOutPt.X())
: aDstRect.Left() - aOutPt.X(),
nOffY = aDstRect.Top() - aOutPt.Y();
long nX, nOutX, nY, nOutY;
long nMirrOffX = 0;
long nMirrOffY = 0;
long* pMapX = new long[ nDstWidth ];
long* pMapY = new long[ nDstHeight ];
// create horizontal mapping table
if( bHMirr )
nMirrOffX = ( aBmpRect.Left() << 1 ) + nSrcWidth - 1;
for( nX = 0L, nOutX = nOffX; nX < nDstWidth; nX++, nOutX++ )
{
pMapX[ nX ] = aBmpRect.Left() + nOutX * nSrcWidth / nOutWidth;
if( bHMirr )
pMapX[ nX ] = nMirrOffX - pMapX[ nX ];
}
// create vertical mapping table
if( bVMirr )
nMirrOffY = ( aBmpRect.Top() << 1 ) + nSrcHeight - 1;
for( nY = 0L, nOutY = nOffY; nY < nDstHeight; nY++, nOutY++ )
{
pMapY[ nY ] = aBmpRect.Top() + nOutY * nSrcHeight / nOutHeight;
if( bVMirr )
pMapY[ nY ] = nMirrOffY - pMapY[ nY ];
}
BitmapReadAccess* pP = ( (Bitmap&) rBmp ).AcquireReadAccess();
BitmapReadAccess* pA = ( (AlphaMask&) rAlpha ).AcquireReadAccess();
DBG_ASSERT( pA->GetScanlineFormat() == BMP_FORMAT_8BIT_PAL ||
pA->GetScanlineFormat() == BMP_FORMAT_8BIT_TC_MASK,
"OutputDevice::ImplDrawAlpha(): non-8bit alpha no longer supported!" );
// #i38887# reading from screen may sometimes fail
if( aBmp.ImplGetImpBitmap() )
{
Bitmap aTmp;
if( mpAlphaVDev )
{
aTmp = ImplBlendWithAlpha(
aBmp,pP,pA,
aDstRect,
nOffY,nDstHeight,
nOffX,nDstWidth,
pMapX,pMapY );
}
else
{
aTmp = ImplBlend(
aBmp,pP,pA,
nOffY,nDstHeight,
nOffX,nDstWidth,
aBmpRect,aOutSz,
bHMirr,bVMirr,
pMapX,pMapY );
}
// #110958# Disable alpha VDev, we're doing the necessary
// stuff explicitly furher below
if( mpAlphaVDev )
mpAlphaVDev = NULL;
DrawBitmap( aDstRect.TopLeft(),
aTmp );
// #110958# Enable alpha VDev again
mpAlphaVDev = pOldVDev;
}
( (Bitmap&) rBmp ).ReleaseAccess( pP );
( (AlphaMask&) rAlpha ).ReleaseAccess( pA );
delete[] pMapX;
delete[] pMapY;
mbMap = bOldMap;
mpMetaFile = pOldMetaFile;
}
}
}
void OutputDevice::ImplPrintTransparent( const Bitmap& rBmp, const Bitmap& rMask,
const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel )
{
Point aPt;
Point aDestPt( LogicToPixel( rDestPt ) );
Size aDestSz( LogicToPixel( rDestSize ) );
Rectangle aSrcRect( rSrcPtPixel, rSrcSizePixel );
aSrcRect.Justify();
if( !rBmp.IsEmpty() && aSrcRect.GetWidth() && aSrcRect.GetHeight() && aDestSz.Width() && aDestSz.Height() )
{
Bitmap aPaint( rBmp ), aMask( rMask );
sal_uLong nMirrFlags = 0UL;
if( aMask.GetBitCount() > 1 )
aMask.Convert( BMP_CONVERSION_1BIT_THRESHOLD );
// mirrored horizontically
if( aDestSz.Width() < 0L )
{
aDestSz.Width() = -aDestSz.Width();
aDestPt.X() -= ( aDestSz.Width() - 1L );
nMirrFlags |= BMP_MIRROR_HORZ;
}
// mirrored vertically
if( aDestSz.Height() < 0L )
{
aDestSz.Height() = -aDestSz.Height();
aDestPt.Y() -= ( aDestSz.Height() - 1L );
nMirrFlags |= BMP_MIRROR_VERT;
}
// source cropped?
if( aSrcRect != Rectangle( aPt, aPaint.GetSizePixel() ) )
{
aPaint.Crop( aSrcRect );
aMask.Crop( aSrcRect );
}
// destination mirrored
if( nMirrFlags )
{
aPaint.Mirror( nMirrFlags );
aMask.Mirror( nMirrFlags );
}
// we always want to have a mask
if( aMask.IsEmpty() )
{
aMask = Bitmap( aSrcRect.GetSize(), 1 );
aMask.Erase( Color( COL_BLACK ) );
}
// do painting
const long nSrcWidth = aSrcRect.GetWidth(), nSrcHeight = aSrcRect.GetHeight();
long nX, nY, nWorkX, nWorkY, nWorkWidth, nWorkHeight;
long* pMapX = new long[ nSrcWidth + 1 ];
long* pMapY = new long[ nSrcHeight + 1 ];
const bool bOldMap = mbMap;
mbMap = false;
// create forward mapping tables
for( nX = 0L; nX <= nSrcWidth; nX++ )
pMapX[ nX ] = aDestPt.X() + FRound( (double) aDestSz.Width() * nX / nSrcWidth );
for( nY = 0L; nY <= nSrcHeight; nY++ )
pMapY[ nY ] = aDestPt.Y() + FRound( (double) aDestSz.Height() * nY / nSrcHeight );
// walk through all rectangles of mask
Region aWorkRgn( aMask.CreateRegion( COL_BLACK, Rectangle( Point(), aMask.GetSizePixel() ) ) );
ImplRegionInfo aInfo;
bool bRgnRect = aWorkRgn.ImplGetFirstRect( aInfo, nWorkX, nWorkY, nWorkWidth, nWorkHeight );
while( bRgnRect )
{
Bitmap aBandBmp( aPaint );
const Rectangle aBandRect( Point( nWorkX, nWorkY ), Size( nWorkWidth, nWorkHeight ) );
const Point aMapPt( pMapX[ nWorkX ], pMapY[ nWorkY ] );
const Size aMapSz( pMapX[ nWorkX + nWorkWidth ] - aMapPt.X(), pMapY[ nWorkY + nWorkHeight ] - aMapPt.Y() );
aBandBmp.Crop( aBandRect );
ImplDrawBitmap( aMapPt, aMapSz, Point(), aBandBmp.GetSizePixel(), aBandBmp, META_BMPSCALEPART_ACTION );
bRgnRect = aWorkRgn.ImplGetNextRect( aInfo, nWorkX, nWorkY, nWorkWidth, nWorkHeight );
}
mbMap = bOldMap;
delete[] pMapX;
delete[] pMapY;
}
}
void OutputDevice::ImplPrintMask( const Bitmap& rMask, const Color& rMaskColor,
const Point& rDestPt, const Size& rDestSize,
const Point& rSrcPtPixel, const Size& rSrcSizePixel )
{
Point aPt;
Point aDestPt( LogicToPixel( rDestPt ) );
Size aDestSz( LogicToPixel( rDestSize ) );
Rectangle aSrcRect( rSrcPtPixel, rSrcSizePixel );
aSrcRect.Justify();
if( !rMask.IsEmpty() && aSrcRect.GetWidth() && aSrcRect.GetHeight() && aDestSz.Width() && aDestSz.Height() )
{
Bitmap aMask( rMask );
sal_uLong nMirrFlags = 0UL;
if( aMask.GetBitCount() > 1 )
aMask.Convert( BMP_CONVERSION_1BIT_THRESHOLD );
// mirrored horizontically
if( aDestSz.Width() < 0L )
{
aDestSz.Width() = -aDestSz.Width();
aDestPt.X() -= ( aDestSz.Width() - 1L );
nMirrFlags |= BMP_MIRROR_HORZ;
}
// mirrored vertically
if( aDestSz.Height() < 0L )
{
aDestSz.Height() = -aDestSz.Height();
aDestPt.Y() -= ( aDestSz.Height() - 1L );
nMirrFlags |= BMP_MIRROR_VERT;
}
// source cropped?
if( aSrcRect != Rectangle( aPt, aMask.GetSizePixel() ) )
aMask.Crop( aSrcRect );
// destination mirrored
if( nMirrFlags )
aMask.Mirror( nMirrFlags );
// do painting
const long nSrcWidth = aSrcRect.GetWidth(), nSrcHeight = aSrcRect.GetHeight();
long nX, nY, nWorkX, nWorkY, nWorkWidth, nWorkHeight;
long* pMapX = new long[ nSrcWidth + 1 ];
long* pMapY = new long[ nSrcHeight + 1 ];
GDIMetaFile* pOldMetaFile = mpMetaFile;
const bool bOldMap = mbMap;
mpMetaFile = NULL;
mbMap = false;
Push( PUSH_FILLCOLOR | PUSH_LINECOLOR );
SetLineColor( rMaskColor );
SetFillColor( rMaskColor );
ImplInitLineColor();
ImplInitFillColor();
// create forward mapping tables
for( nX = 0L; nX <= nSrcWidth; nX++ )
pMapX[ nX ] = aDestPt.X() + FRound( (double) aDestSz.Width() * nX / nSrcWidth );
for( nY = 0L; nY <= nSrcHeight; nY++ )
pMapY[ nY ] = aDestPt.Y() + FRound( (double) aDestSz.Height() * nY / nSrcHeight );
// walk through all rectangles of mask
Region aWorkRgn( aMask.CreateRegion( COL_BLACK, Rectangle( Point(), aMask.GetSizePixel() ) ) );
ImplRegionInfo aInfo;
bool bRgnRect = aWorkRgn.ImplGetFirstRect( aInfo, nWorkX, nWorkY, nWorkWidth, nWorkHeight );
while( bRgnRect )
{
const Point aMapPt( pMapX[ nWorkX ], pMapY[ nWorkY ] );
const Size aMapSz( pMapX[ nWorkX + nWorkWidth ] - aMapPt.X(), pMapY[ nWorkY + nWorkHeight ] - aMapPt.Y() );
DrawRect( Rectangle( aMapPt, aMapSz ) );
bRgnRect = aWorkRgn.ImplGetNextRect( aInfo, nWorkX, nWorkY, nWorkWidth, nWorkHeight );
}
Pop();
delete[] pMapX;
delete[] pMapY;
mbMap = bOldMap;
mpMetaFile = pOldMetaFile;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */