521 lines
23 KiB
C++
521 lines
23 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <vcl/canvastools.hxx>
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#include <vcl/bitmap.hxx>
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#include <vcl/bitmapex.hxx>
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#include <vcl/bmpacc.hxx>
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#include <tools/diagnose_ex.h>
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#include "dx_impltools.hxx"
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#include <basegfx/numeric/ftools.hxx>
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#include <canvas/debug.hxx>
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#include <canvas/verbosetrace.hxx>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <com/sun/star/rendering/XIntegerBitmap.hpp>
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#include <boost/scoped_array.hpp>
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#include "dx_vcltools.hxx"
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using namespace ::com::sun::star;
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namespace dxcanvas
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{
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namespace tools
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{
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namespace
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{
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/// Calc number of colors in given BitmapInfoHeader
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sal_Int32 calcDIBColorCount( const BITMAPINFOHEADER& rBIH )
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{
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if( rBIH.biSize != sizeof( BITMAPCOREHEADER ) )
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{
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if( rBIH.biBitCount <= 8 )
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{
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if( rBIH.biClrUsed )
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return rBIH.biClrUsed;
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else
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return 1L << rBIH.biBitCount;
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}
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}
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else
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{
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BITMAPCOREHEADER* pCoreHeader = (BITMAPCOREHEADER*)&rBIH;
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if( pCoreHeader->bcBitCount <= 8 )
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return 1L << pCoreHeader->bcBitCount;
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}
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return 0; // nothing known
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}
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/// Draw DI bits to given Graphics
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bool drawDIBits( const ::boost::shared_ptr< Gdiplus::Graphics >& rGraphics,
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const void* hDIB )
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{
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bool bRet( false );
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BitmapSharedPtr pBitmap;
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const BITMAPINFO* pBI = (BITMAPINFO*)GlobalLock( (HGLOBAL)hDIB );
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if( pBI )
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{
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const BITMAPINFOHEADER* pBIH = (BITMAPINFOHEADER*)pBI;
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const BYTE* pBits = (BYTE*) pBI + *(DWORD*)pBI +
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calcDIBColorCount( *pBIH ) * sizeof( RGBQUAD );
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// forward to outsourced GDI+ rendering method
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// (header clashes)
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bRet = tools::drawDIBits( rGraphics, *pBI, (void*)pBits );
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GlobalUnlock( (HGLOBAL)hDIB );
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}
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return bRet;
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}
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/** Draw VCL bitmap to given Graphics
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@param rBmp
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Reference to bitmap. Might get modified, in such a way
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that it will hold a DIB after a successful function call.
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*/
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bool drawVCLBitmap( const ::boost::shared_ptr< Gdiplus::Graphics >& rGraphics,
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::Bitmap& rBmp )
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{
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BitmapSystemData aBmpSysData;
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if( !rBmp.GetSystemData( aBmpSysData ) ||
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!aBmpSysData.pDIB )
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{
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// first of all, ensure that Bitmap contains a DIB, by
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// aquiring a read access
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BitmapReadAccess* pReadAcc = rBmp.AcquireReadAccess();
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// TODO(P2): Acquiring a read access can actually
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// force a read from VRAM, thus, avoiding this
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// step somehow will increase performance
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// here.
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if( pReadAcc )
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{
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// try again: now, WinSalBitmap must have
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// generated a DIB
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if( rBmp.GetSystemData( aBmpSysData ) &&
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aBmpSysData.pDIB )
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{
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return drawDIBits( rGraphics,
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aBmpSysData.pDIB );
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}
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rBmp.ReleaseAccess( pReadAcc );
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}
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}
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else
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{
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return drawDIBits( rGraphics,
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aBmpSysData.pDIB );
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}
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// failed to generate DIBits from vcl bitmap
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return false;
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}
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/** Create a chunk of raw RGBA data GDI+ Bitmap from VCL BbitmapEX
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*/
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RawRGBABitmap bitmapFromVCLBitmapEx( const ::BitmapEx& rBmpEx )
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{
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// TODO(P2): Avoid temporary bitmap generation, maybe
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// even ensure that created DIBs are copied back to
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// BmpEx (currently, every AcquireReadAccess() will
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// make the local bitmap copy unique, effectively
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// duplicating the memory used)
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ENSURE_OR_THROW( rBmpEx.IsTransparent(),
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"::dxcanvas::tools::bitmapFromVCLBitmapEx(): "
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"BmpEx not transparent" );
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// convert transparent bitmap to 32bit RGBA
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// ========================================
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const ::Size aBmpSize( rBmpEx.GetSizePixel() );
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RawRGBABitmap aBmpData;
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aBmpData.mnWidth = aBmpSize.Width();
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aBmpData.mnHeight = aBmpSize.Height();
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aBmpData.mpBitmapData.reset( new sal_uInt8[ 4*aBmpData.mnWidth*aBmpData.mnHeight ] );
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Bitmap aBitmap( rBmpEx.GetBitmap() );
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Bitmap::ScopedReadAccess pReadAccess( aBitmap );
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const sal_Int32 nWidth( aBmpSize.Width() );
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const sal_Int32 nHeight( aBmpSize.Height() );
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ENSURE_OR_THROW( pReadAccess.get() != NULL,
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"::dxcanvas::tools::bitmapFromVCLBitmapEx(): "
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"Unable to acquire read acces to bitmap" );
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if( rBmpEx.IsAlpha() )
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{
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Bitmap aAlpha( rBmpEx.GetAlpha().GetBitmap() );
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Bitmap::ScopedReadAccess pAlphaReadAccess( aAlpha );
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// By convention, the access buffer always has
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// one of the following formats:
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//
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// BMP_FORMAT_1BIT_MSB_PAL
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// BMP_FORMAT_4BIT_MSN_PAL
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// BMP_FORMAT_8BIT_PAL
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// BMP_FORMAT_16BIT_TC_LSB_MASK
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// BMP_FORMAT_24BIT_TC_BGR
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// BMP_FORMAT_32BIT_TC_MASK
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//
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// and is always BMP_FORMAT_BOTTOM_UP
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//
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// This is the way
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// WinSalBitmap::AcquireBuffer() sets up the
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// buffer
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ENSURE_OR_THROW( pAlphaReadAccess.get() != NULL,
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"::dxcanvas::tools::bitmapFromVCLBitmapEx(): "
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"Unable to acquire read acces to alpha" );
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ENSURE_OR_THROW( pAlphaReadAccess->GetScanlineFormat() == BMP_FORMAT_8BIT_PAL ||
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pAlphaReadAccess->GetScanlineFormat() == BMP_FORMAT_8BIT_TC_MASK,
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"::dxcanvas::tools::bitmapFromVCLBitmapEx(): "
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"Unsupported alpha scanline format" );
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BitmapColor aCol;
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const sal_Int32 nWidth( aBmpSize.Width() );
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const sal_Int32 nHeight( aBmpSize.Height() );
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sal_uInt8* pCurrOutput( aBmpData.mpBitmapData.get() );
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int x, y;
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for( y=0; y<nHeight; ++y )
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{
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switch( pReadAccess->GetScanlineFormat() )
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{
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case BMP_FORMAT_8BIT_PAL:
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{
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Scanline pScan = pReadAccess->GetScanline( y );
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Scanline pAScan = pAlphaReadAccess->GetScanline( y );
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for( x=0; x<nWidth; ++x )
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{
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aCol = pReadAccess->GetPaletteColor( *pScan++ );
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*pCurrOutput++ = aCol.GetBlue();
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*pCurrOutput++ = aCol.GetGreen();
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*pCurrOutput++ = aCol.GetRed();
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// out notion of alpha is
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// different from the rest
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// of the world's
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*pCurrOutput++ = 255 - (BYTE)*pAScan++;
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}
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}
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break;
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case BMP_FORMAT_24BIT_TC_BGR:
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{
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Scanline pScan = pReadAccess->GetScanline( y );
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Scanline pAScan = pAlphaReadAccess->GetScanline( y );
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for( x=0; x<nWidth; ++x )
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{
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// store as RGBA
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*pCurrOutput++ = *pScan++;
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*pCurrOutput++ = *pScan++;
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*pCurrOutput++ = *pScan++;
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// out notion of alpha is
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// different from the rest
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// of the world's
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*pCurrOutput++ = 255 - (BYTE)*pAScan++;
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}
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}
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break;
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// TODO(P2): Might be advantageous
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// to hand-formulate the following
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// formats, too.
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case BMP_FORMAT_1BIT_MSB_PAL:
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// FALLTHROUGH intended
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case BMP_FORMAT_4BIT_MSN_PAL:
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// FALLTHROUGH intended
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case BMP_FORMAT_16BIT_TC_LSB_MASK:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_MASK:
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{
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Scanline pAScan = pAlphaReadAccess->GetScanline( y );
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// using fallback for those
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// seldom formats
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for( x=0; x<nWidth; ++x )
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{
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// yes. x and y are swapped on Get/SetPixel
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aCol = pReadAccess->GetColor(y,x);
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*pCurrOutput++ = aCol.GetBlue();
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*pCurrOutput++ = aCol.GetGreen();
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*pCurrOutput++ = aCol.GetRed();
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// out notion of alpha is
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// different from the rest
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// of the world's
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*pCurrOutput++ = 255 - (BYTE)*pAScan++;
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}
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}
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break;
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case BMP_FORMAT_1BIT_LSB_PAL:
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// FALLTHROUGH intended
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case BMP_FORMAT_4BIT_LSN_PAL:
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// FALLTHROUGH intended
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case BMP_FORMAT_8BIT_TC_MASK:
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// FALLTHROUGH intended
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case BMP_FORMAT_24BIT_TC_RGB:
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// FALLTHROUGH intended
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case BMP_FORMAT_24BIT_TC_MASK:
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// FALLTHROUGH intended
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case BMP_FORMAT_16BIT_TC_MSB_MASK:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_ABGR:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_ARGB:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_BGRA:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_RGBA:
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// FALLTHROUGH intended
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default:
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ENSURE_OR_THROW( false,
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"::dxcanvas::tools::bitmapFromVCLBitmapEx(): "
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"Unexpected scanline format - has "
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"WinSalBitmap::AcquireBuffer() changed?" );
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}
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}
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}
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else
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{
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Bitmap aMask( rBmpEx.GetMask() );
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Bitmap::ScopedReadAccess pMaskReadAccess( aMask );
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// By convention, the access buffer always has
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// one of the following formats:
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//
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// BMP_FORMAT_1BIT_MSB_PAL
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// BMP_FORMAT_4BIT_MSN_PAL
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// BMP_FORMAT_8BIT_PAL
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// BMP_FORMAT_16BIT_TC_LSB_MASK
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// BMP_FORMAT_24BIT_TC_BGR
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// BMP_FORMAT_32BIT_TC_MASK
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//
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// and is always BMP_FORMAT_BOTTOM_UP
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//
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// This is the way
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// WinSalBitmap::AcquireBuffer() sets up the
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// buffer
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ENSURE_OR_THROW( pMaskReadAccess.get() != NULL,
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"::dxcanvas::tools::bitmapFromVCLBitmapEx(): "
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"Unable to acquire read acces to mask" );
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ENSURE_OR_THROW( pMaskReadAccess->GetScanlineFormat() == BMP_FORMAT_1BIT_MSB_PAL,
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"::dxcanvas::tools::bitmapFromVCLBitmapEx(): "
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"Unsupported mask scanline format" );
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BitmapColor aCol;
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int nCurrBit;
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const int nMask( 1L );
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const int nInitialBit(7);
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sal_uInt8* pCurrOutput( aBmpData.mpBitmapData.get() );
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int x, y;
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// mapping table, to get from mask index color to
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// alpha value (which depends on the mask's palette)
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sal_uInt8 aColorMap[2];
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const BitmapColor& rCol0( pMaskReadAccess->GetPaletteColor( 0 ) );
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const BitmapColor& rCol1( pMaskReadAccess->GetPaletteColor( 1 ) );
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// shortcut for true luminance calculation
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// (assumes that palette is grey-level). Note the
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// swapped the indices here, to account for the
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// fact that VCL's notion of alpha is inverted to
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// the rest of the world's.
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aColorMap[0] = rCol1.GetRed();
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aColorMap[1] = rCol0.GetRed();
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for( y=0; y<nHeight; ++y )
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{
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switch( pReadAccess->GetScanlineFormat() )
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{
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case BMP_FORMAT_8BIT_PAL:
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{
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Scanline pScan = pReadAccess->GetScanline( y );
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Scanline pMScan = pMaskReadAccess->GetScanline( y );
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for( x=0, nCurrBit=nInitialBit; x<nWidth; ++x )
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{
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aCol = pReadAccess->GetPaletteColor( *pScan++ );
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*pCurrOutput++ = aCol.GetBlue();
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*pCurrOutput++ = aCol.GetGreen();
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*pCurrOutput++ = aCol.GetRed();
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*pCurrOutput++ = aColorMap[ (pMScan[ (x & ~7L) >> 3L ] >> nCurrBit ) & nMask ];
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nCurrBit = ((nCurrBit - 1) % 8L) & 7L;
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}
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}
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break;
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case BMP_FORMAT_24BIT_TC_BGR:
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{
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Scanline pScan = pReadAccess->GetScanline( y );
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Scanline pMScan = pMaskReadAccess->GetScanline( y );
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for( x=0, nCurrBit=nInitialBit; x<nWidth; ++x )
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{
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// store as RGBA
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*pCurrOutput++ = *pScan++;
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*pCurrOutput++ = *pScan++;
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*pCurrOutput++ = *pScan++;
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*pCurrOutput++ = aColorMap[ (pMScan[ (x & ~7L) >> 3L ] >> nCurrBit ) & nMask ];
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nCurrBit = ((nCurrBit - 1) % 8L) & 7L;
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}
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}
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break;
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// TODO(P2): Might be advantageous
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// to hand-formulate the following
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// formats, too.
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case BMP_FORMAT_1BIT_MSB_PAL:
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// FALLTHROUGH intended
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case BMP_FORMAT_4BIT_MSN_PAL:
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// FALLTHROUGH intended
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case BMP_FORMAT_16BIT_TC_LSB_MASK:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_MASK:
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{
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Scanline pMScan = pMaskReadAccess->GetScanline( y );
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// using fallback for those
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// seldom formats
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for( x=0, nCurrBit=nInitialBit; x<nWidth; ++x )
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{
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// yes. x and y are swapped on Get/SetPixel
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aCol = pReadAccess->GetColor(y,x);
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// store as RGBA
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*pCurrOutput++ = aCol.GetBlue();
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*pCurrOutput++ = aCol.GetGreen();
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*pCurrOutput++ = aCol.GetRed();
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*pCurrOutput++ = aColorMap[ (pMScan[ (x & ~7L) >> 3L ] >> nCurrBit ) & nMask ];
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nCurrBit = ((nCurrBit - 1) % 8L) & 7L;
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}
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}
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break;
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case BMP_FORMAT_1BIT_LSB_PAL:
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// FALLTHROUGH intended
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case BMP_FORMAT_4BIT_LSN_PAL:
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// FALLTHROUGH intended
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case BMP_FORMAT_8BIT_TC_MASK:
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// FALLTHROUGH intended
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case BMP_FORMAT_24BIT_TC_RGB:
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// FALLTHROUGH intended
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case BMP_FORMAT_24BIT_TC_MASK:
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// FALLTHROUGH intended
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case BMP_FORMAT_16BIT_TC_MSB_MASK:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_ABGR:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_ARGB:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_BGRA:
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// FALLTHROUGH intended
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case BMP_FORMAT_32BIT_TC_RGBA:
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// FALLTHROUGH intended
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default:
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ENSURE_OR_THROW( false,
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"::dxcanvas::tools::bitmapFromVCLBitmapEx(): "
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"Unexpected scanline format - has "
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"WinSalBitmap::AcquireBuffer() changed?" );
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}
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}
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}
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return aBmpData;
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}
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bool drawVCLBitmapEx( const ::boost::shared_ptr< Gdiplus::Graphics >& rGraphics,
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const ::BitmapEx& rBmpEx )
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{
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if( !rBmpEx.IsTransparent() )
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{
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Bitmap aBmp( rBmpEx.GetBitmap() );
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return drawVCLBitmap( rGraphics, aBmp );
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}
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else
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{
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return drawRGBABits( rGraphics,
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bitmapFromVCLBitmapEx( rBmpEx ) );
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}
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}
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}
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bool drawVCLBitmapFromXBitmap( const ::boost::shared_ptr< Gdiplus::Graphics >& rGraphics,
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const uno::Reference< rendering::XBitmap >& xBitmap )
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{
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// TODO(F2): add support for floating point bitmap formats
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uno::Reference< rendering::XIntegerReadOnlyBitmap > xIntBmp(
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xBitmap, uno::UNO_QUERY );
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if( !xIntBmp.is() )
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return false;
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::BitmapEx aBmpEx = ::vcl::unotools::bitmapExFromXBitmap( xIntBmp );
|
|
if( !aBmpEx )
|
|
return false;
|
|
|
|
return drawVCLBitmapEx( rGraphics, aBmpEx );
|
|
}
|
|
}
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|