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-rw-r--r--emfio/source/reader/wmfreader.cxx1871
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diff --git a/emfio/source/reader/wmfreader.cxx b/emfio/source/reader/wmfreader.cxx
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+++ b/emfio/source/reader/wmfreader.cxx
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+/* -*- 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 <wmfreader.hxx>
+#include <emfreader.hxx>
+
+#include <memory>
+#include <optional>
+#include <o3tl/safeint.hxx>
+#include <rtl/crc.h>
+#include <rtl/tencinfo.h>
+#include <sal/log.hxx>
+#include <osl/endian.h>
+#include <vcl/gdimtf.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/dibtools.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/wmfexternal.hxx>
+#include <tools/fract.hxx>
+#include <vcl/bitmapaccess.hxx>
+#include <vcl/BitmapTools.hxx>
+#include <osl/thread.h>
+
+// MS Windows defines
+#define W_META_SETBKCOLOR 0x0201
+#define W_META_SETBKMODE 0x0102
+#define W_META_SETMAPMODE 0x0103
+#define W_META_SETROP2 0x0104
+#define W_META_SETRELABS 0x0105
+#define W_META_SETPOLYFILLMODE 0x0106
+#define W_META_SETSTRETCHBLTMODE 0x0107
+#define W_META_SETTEXTCHAREXTRA 0x0108
+#define W_META_SETTEXTCOLOR 0x0209
+#define W_META_SETTEXTJUSTIFICATION 0x020A
+#define W_META_SETWINDOWORG 0x020B
+#define W_META_SETWINDOWEXT 0x020C
+#define W_META_SETVIEWPORTORG 0x020D
+#define W_META_SETVIEWPORTEXT 0x020E
+#define W_META_OFFSETWINDOWORG 0x020F
+#define W_META_SCALEWINDOWEXT 0x0410
+#define W_META_OFFSETVIEWPORTORG 0x0211
+#define W_META_SCALEVIEWPORTEXT 0x0412
+#define W_META_LINETO 0x0213
+#define W_META_MOVETO 0x0214
+#define W_META_EXCLUDECLIPRECT 0x0415
+#define W_META_INTERSECTCLIPRECT 0x0416
+#define W_META_ARC 0x0817
+#define W_META_ELLIPSE 0x0418
+#define W_META_FLOODFILL 0x0419
+#define W_META_PIE 0x081A
+#define W_META_RECTANGLE 0x041B
+#define W_META_ROUNDRECT 0x061C
+#define W_META_PATBLT 0x061D
+#define W_META_SAVEDC 0x001E
+#define W_META_SETPIXEL 0x041F
+#define W_META_OFFSETCLIPRGN 0x0220
+#define W_META_TEXTOUT 0x0521
+#define W_META_BITBLT 0x0922
+#define W_META_STRETCHBLT 0x0B23
+#define W_META_POLYGON 0x0324
+#define W_META_POLYLINE 0x0325
+#define W_META_ESCAPE 0x0626
+#define W_META_RESTOREDC 0x0127
+#define W_META_FILLREGION 0x0228
+#define W_META_FRAMEREGION 0x0429
+#define W_META_INVERTREGION 0x012A
+#define W_META_PAINTREGION 0x012B
+#define W_META_SELECTCLIPREGION 0x012C
+#define W_META_SELECTOBJECT 0x012D
+#define W_META_SETTEXTALIGN 0x012E
+#define W_META_DRAWTEXT 0x062F
+#define W_META_CHORD 0x0830
+#define W_META_SETMAPPERFLAGS 0x0231
+#define W_META_EXTTEXTOUT 0x0a32
+#define W_META_SETDIBTODEV 0x0d33
+#define W_META_SELECTPALETTE 0x0234
+#define W_META_REALIZEPALETTE 0x0035
+#define W_META_ANIMATEPALETTE 0x0436
+#define W_META_SETPALENTRIES 0x0037
+#define W_META_POLYPOLYGON 0x0538
+#define W_META_RESIZEPALETTE 0x0139
+#define W_META_DIBBITBLT 0x0940
+#define W_META_DIBSTRETCHBLT 0x0b41
+#define W_META_DIBCREATEPATTERNBRUSH 0x0142
+#define W_META_STRETCHDIB 0x0f43
+#define W_META_EXTFLOODFILL 0x0548
+#define W_META_RESETDC 0x014C
+#define W_META_STARTDOC 0x014D
+#define W_META_STARTPAGE 0x004F
+#define W_META_ENDPAGE 0x0050
+#define W_META_ABORTDOC 0x0052
+#define W_META_ENDDOC 0x005E
+#define W_META_DELETEOBJECT 0x01f0
+#define W_META_CREATEPALETTE 0x00f7
+#define W_META_CREATEBRUSH 0x00F8
+#define W_META_CREATEPATTERNBRUSH 0x01F9
+#define W_META_CREATEPENINDIRECT 0x02FA
+#define W_META_CREATEFONTINDIRECT 0x02FB
+#define W_META_CREATEBRUSHINDIRECT 0x02FC
+#define W_META_CREATEBITMAPINDIRECT 0x02FD
+#define W_META_CREATEBITMAP 0x06FE
+#define W_META_CREATEREGION 0x06FF
+
+namespace
+{
+ void GetWinExtMax(const Point& rSource, tools::Rectangle& rPlaceableBound, const sal_Int16 nMapMode)
+ {
+ Point aSource(rSource);
+ if (nMapMode == MM_HIMETRIC)
+ aSource.setY( -rSource.Y() );
+ if (aSource.X() < rPlaceableBound.Left())
+ rPlaceableBound.SetLeft( aSource.X() );
+ if (aSource.X() > rPlaceableBound.Right())
+ rPlaceableBound.SetRight( aSource.X() );
+ if (aSource.Y() < rPlaceableBound.Top())
+ rPlaceableBound.SetTop( aSource.Y() );
+ if (aSource.Y() > rPlaceableBound.Bottom())
+ rPlaceableBound.SetBottom( aSource.Y() );
+ }
+
+ void GetWinExtMax(const tools::Rectangle& rSource, tools::Rectangle& rPlaceableBound, const sal_Int16 nMapMode)
+ {
+ GetWinExtMax(rSource.TopLeft(), rPlaceableBound, nMapMode);
+ GetWinExtMax(rSource.BottomRight(), rPlaceableBound, nMapMode);
+ }
+
+}
+
+namespace emfio
+{
+ inline Point WmfReader::ReadPoint()
+ {
+ short nX = 0, nY = 0;
+ mpInputStream->ReadInt16( nX ).ReadInt16( nY );
+ return Point( nX, nY );
+ }
+
+ inline Point WmfReader::ReadYX()
+ {
+ short nX = 0, nY = 0;
+ mpInputStream->ReadInt16( nY ).ReadInt16( nX );
+ return Point( nX, nY );
+ }
+
+ tools::Rectangle WmfReader::ReadRectangle()
+ {
+ Point aBR, aTL;
+ aBR = ReadYX();
+ aTL = ReadYX();
+ aBR.AdjustX( -1 );
+ aBR.AdjustY( -1 );
+ if (aTL.X() > aBR.X() || aTL.Y() > aBR.Y())
+ {
+ SAL_WARN("vcl.wmf", "broken rectangle");
+ return tools::Rectangle::Justify(aTL, aBR);
+ }
+ return tools::Rectangle( aTL, aBR );
+ }
+
+ Size WmfReader::ReadYXExt()
+ {
+ short nW=0, nH=0;
+ mpInputStream->ReadInt16( nH ).ReadInt16( nW );
+ return Size( nW, nH );
+ }
+
+ void WmfReader::ReadRecordParams( sal_uInt16 nFunc )
+ {
+ switch( nFunc )
+ {
+ case W_META_SETBKCOLOR:
+ {
+ SetBkColor( ReadColor() );
+ }
+ break;
+
+ case W_META_SETBKMODE:
+ {
+ sal_uInt16 nDat = 0;
+ mpInputStream->ReadUInt16( nDat );
+ SetBkMode( static_cast<BkMode>(nDat) );
+ }
+ break;
+
+ // !!!
+ case W_META_SETMAPMODE:
+ {
+ sal_Int16 nMapMode = 0;
+ mpInputStream->ReadInt16( nMapMode );
+ SetMapMode( nMapMode );
+ }
+ break;
+
+ case W_META_SETROP2:
+ {
+ sal_uInt16 nROP2 = 0;
+ mpInputStream->ReadUInt16( nROP2 );
+ SetRasterOp( static_cast<WMFRasterOp>(nROP2) );
+ }
+ break;
+
+ case W_META_SETTEXTCOLOR:
+ {
+ SetTextColor( ReadColor() );
+ }
+ break;
+
+ case W_META_SETWINDOWORG:
+ {
+ SetWinOrg( ReadYX() );
+ }
+ break;
+
+ case W_META_SETWINDOWEXT:
+ {
+ short nWidth = 0, nHeight = 0;
+ mpInputStream->ReadInt16( nHeight ).ReadInt16( nWidth );
+ SetWinExt( Size( nWidth, nHeight ) );
+ }
+ break;
+
+ case W_META_OFFSETWINDOWORG:
+ {
+ short nXAdd = 0, nYAdd = 0;
+ mpInputStream->ReadInt16( nYAdd ).ReadInt16( nXAdd );
+ SetWinOrgOffset( nXAdd, nYAdd );
+ }
+ break;
+
+ case W_META_SCALEWINDOWEXT:
+ {
+ short nXNum = 0, nXDenom = 0, nYNum = 0, nYDenom = 0;
+ mpInputStream->ReadInt16( nYDenom ).ReadInt16( nYNum ).ReadInt16( nXDenom ).ReadInt16( nXNum );
+ if (!nYDenom || !nXDenom)
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ break;
+ }
+ ScaleWinExt( static_cast<double>(nXNum) / nXDenom, static_cast<double>(nYNum) / nYDenom );
+ }
+ break;
+
+ case W_META_SETVIEWPORTORG:
+ case W_META_SETVIEWPORTEXT:
+ break;
+
+ case W_META_OFFSETVIEWPORTORG:
+ {
+ short nXAdd = 0, nYAdd = 0;
+ mpInputStream->ReadInt16( nYAdd ).ReadInt16( nXAdd );
+ SetDevOrgOffset( nXAdd, nYAdd );
+ }
+ break;
+
+ case W_META_SCALEVIEWPORTEXT:
+ {
+ short nXNum = 0, nXDenom = 0, nYNum = 0, nYDenom = 0;
+ mpInputStream->ReadInt16( nYDenom ).ReadInt16( nYNum ).ReadInt16( nXDenom ).ReadInt16( nXNum );
+ if (!nYDenom || !nXDenom)
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ break;
+ }
+ ScaleDevExt( static_cast<double>(nXNum) / nXDenom, static_cast<double>(nYNum) / nYDenom );
+ }
+ break;
+
+ case W_META_LINETO:
+ {
+ LineTo( ReadYX() );
+ }
+ break;
+
+ case W_META_MOVETO:
+ {
+ MoveTo( ReadYX() );
+ }
+ break;
+
+ case W_META_INTERSECTCLIPRECT:
+ {
+ IntersectClipRect( ReadRectangle() );
+ }
+ break;
+
+ case W_META_RECTANGLE:
+ {
+ DrawRect( ReadRectangle() );
+ }
+ break;
+
+ case W_META_ROUNDRECT:
+ {
+ Size aSize( ReadYXExt() );
+ DrawRoundRect( ReadRectangle(), Size( aSize.Width() / 2, aSize.Height() / 2 ) );
+ }
+ break;
+
+ case W_META_ELLIPSE:
+ {
+ DrawEllipse( ReadRectangle() );
+ }
+ break;
+
+ case W_META_ARC:
+ {
+ Point aEnd( ReadYX() );
+ Point aStart( ReadYX() );
+ tools::Rectangle aRect( ReadRectangle() );
+ aRect.Justify();
+ DrawArc( aRect, aStart, aEnd );
+ }
+ break;
+
+ case W_META_PIE:
+ {
+ Point aEnd( ReadYX() );
+ Point aStart( ReadYX() );
+ tools::Rectangle aRect( ReadRectangle() );
+ aRect.Justify();
+
+ // #i73608# OutputDevice deviates from WMF
+ // semantics. start==end means full ellipse here.
+ if( aStart == aEnd )
+ DrawEllipse( aRect );
+ else
+ DrawPie( aRect, aStart, aEnd );
+ }
+ break;
+
+ case W_META_CHORD:
+ {
+ Point aEnd( ReadYX() );
+ Point aStart( ReadYX() );
+ tools::Rectangle aRect( ReadRectangle() );
+ aRect.Justify();
+ DrawChord( aRect, aStart, aEnd );
+ }
+ break;
+
+ case W_META_POLYGON:
+ {
+ bool bRecordOk = true;
+
+ sal_uInt16 nPoints(0);
+ mpInputStream->ReadUInt16(nPoints);
+
+ if (nPoints > mpInputStream->remainingSize() / (2 * sizeof(sal_uInt16)))
+ {
+ bRecordOk = false;
+ }
+ else
+ {
+ tools::Polygon aPoly(nPoints);
+ for (sal_uInt16 i(0); i < nPoints && mpInputStream->good(); ++i)
+ aPoly[ i ] = ReadPoint();
+ DrawPolygon(aPoly, false/*bRecordPath*/);
+ }
+
+ SAL_WARN_IF(!bRecordOk, "vcl.wmf", "polygon record has more points than we can handle");
+
+ bRecordOk &= mpInputStream->good();
+
+ if (!bRecordOk)
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ break;
+ }
+ }
+ break;
+
+ case W_META_POLYPOLYGON:
+ {
+ sal_uInt16 nPolyCount(0);
+ // Number of polygons:
+ mpInputStream->ReadUInt16( nPolyCount );
+ if (nPolyCount && mpInputStream->good())
+ {
+ bool bRecordOk = true;
+ if (nPolyCount > mpInputStream->remainingSize() / sizeof(sal_uInt16))
+ {
+ break;
+ }
+
+ // Number of points of each polygon. Determine total number of points
+ std::unique_ptr<sal_uInt16[]> xPolygonPointCounts(new sal_uInt16[nPolyCount]);
+ sal_uInt16* pnPoints = xPolygonPointCounts.get();
+ tools::PolyPolygon aPolyPoly(nPolyCount);
+ sal_uInt16 nPoints = 0;
+ for (sal_uInt16 a = 0; a < nPolyCount && mpInputStream->good(); ++a)
+ {
+ mpInputStream->ReadUInt16( pnPoints[a] );
+
+ if (pnPoints[a] > SAL_MAX_UINT16 - nPoints)
+ {
+ bRecordOk = false;
+ break;
+ }
+
+ nPoints += pnPoints[a];
+ }
+
+ SAL_WARN_IF(!bRecordOk, "vcl.wmf", "polypolygon record has more polygons than we can handle");
+
+ bRecordOk &= mpInputStream->good();
+
+ if (!bRecordOk)
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ break;
+ }
+
+ // Polygon points are:
+ for (sal_uInt16 a = 0; a < nPolyCount && mpInputStream->good(); ++a)
+ {
+ const sal_uInt16 nPointCount(pnPoints[a]);
+
+ if (nPointCount > mpInputStream->remainingSize() / (2 * sizeof(sal_uInt16)))
+ {
+ bRecordOk = false;
+ break;
+ }
+
+ std::unique_ptr<Point[]> xPolygonPoints(new Point[nPointCount]);
+ Point* pPtAry = xPolygonPoints.get();
+
+ for(sal_uInt16 b(0); b < nPointCount && mpInputStream->good(); ++b)
+ {
+ pPtAry[b] = ReadPoint();
+ }
+
+ aPolyPoly.Insert( tools::Polygon(nPointCount, pPtAry) );
+ }
+
+ bRecordOk &= mpInputStream->good();
+
+ if (!bRecordOk)
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ break;
+ }
+
+ DrawPolyPolygon( aPolyPoly );
+ }
+ }
+ break;
+
+ case W_META_POLYLINE:
+ {
+ bool bRecordOk = true;
+
+ sal_uInt16 nPoints(0);
+ mpInputStream->ReadUInt16(nPoints);
+
+ if (nPoints > mpInputStream->remainingSize() / (2 * sizeof(sal_uInt16)))
+ {
+ bRecordOk = false;
+ }
+ else
+ {
+ tools::Polygon aPoly(nPoints);
+ for (sal_uInt16 i(0); i < nPoints && mpInputStream->good(); ++i)
+ aPoly[ i ] = ReadPoint();
+ DrawPolyLine( aPoly );
+ }
+
+ SAL_WARN_IF(!bRecordOk, "vcl.wmf", "polyline record has more points than we can handle");
+
+ bRecordOk &= mpInputStream->good();
+
+ if (!bRecordOk)
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ break;
+ }
+ }
+ break;
+
+ case W_META_SAVEDC:
+ {
+ Push();
+ }
+ break;
+
+ case W_META_RESTOREDC:
+ {
+ Pop();
+ }
+ break;
+
+ case W_META_SETPIXEL:
+ {
+ const Color aColor = ReadColor();
+ DrawPixel( ReadYX(), aColor );
+ }
+ break;
+
+ case W_META_OFFSETCLIPRGN:
+ {
+ MoveClipRegion( ReadYXExt() );
+ }
+ break;
+
+ case W_META_TEXTOUT:
+ {
+ //record is Recordsize, RecordFunction, StringLength, <String>, YStart, XStart
+ const sal_uInt32 nNonStringLen = sizeof(sal_uInt32) + 4 * sizeof(sal_uInt16);
+ const sal_uInt32 nRecSize = mnRecSize * 2;
+
+ if (nRecSize < nNonStringLen)
+ {
+ SAL_WARN("vcl.wmf", "W_META_TEXTOUT too short");
+ break;
+ }
+
+ sal_uInt16 nLength = 0;
+ mpInputStream->ReadUInt16(nLength);
+ sal_uInt16 nStoredLength = (nLength + 1) &~ 1;
+
+ if (nRecSize - nNonStringLen < nStoredLength)
+ {
+ SAL_WARN("vcl.wmf", "W_META_TEXTOUT too short, truncating string");
+ nLength = nStoredLength = nRecSize - nNonStringLen;
+ }
+
+ if (nLength)
+ {
+ std::vector<char> aChars(nStoredLength);
+ nLength = std::min<sal_uInt16>(nLength, mpInputStream->ReadBytes(aChars.data(), aChars.size()));
+ OUString aText(aChars.data(), nLength, GetCharSet());
+ Point aPosition( ReadYX() );
+ DrawText( aPosition, aText );
+ }
+ }
+ break;
+
+ case W_META_EXTTEXTOUT:
+ {
+ //record is Recordsize, RecordFunction, Y, X, StringLength, options, maybe rectangle, <String>
+ sal_uInt32 nNonStringLen = sizeof(sal_uInt32) + 5 * sizeof(sal_uInt16);
+ const sal_uInt32 nRecSize = mnRecSize * 2;
+
+ if (nRecSize < nNonStringLen)
+ {
+ SAL_WARN("vcl.wmf", "W_META_EXTTEXTOUT too short");
+ break;
+ }
+
+ auto nRecordPos = mpInputStream->Tell() - 6;
+ Point aPosition = ReadYX();
+ sal_uInt16 nLen = 0, nOptions = 0;
+ mpInputStream->ReadUInt16( nLen ).ReadUInt16( nOptions );
+
+ if (nOptions & ETO_CLIPPED)
+ {
+ nNonStringLen += 2 * sizeof(sal_uInt16);
+
+ if (nRecSize < nNonStringLen)
+ {
+ SAL_WARN("vcl.wmf", "W_META_TEXTOUT too short");
+ break;
+ }
+
+ ReadPoint();
+ ReadPoint();
+ SAL_WARN("vcl.wmf", "clipping unsupported");
+ }
+
+ ComplexTextLayoutFlags nTextLayoutMode = ComplexTextLayoutFlags::Default;
+ if ( nOptions & ETO_RTLREADING )
+ nTextLayoutMode = ComplexTextLayoutFlags::BiDiRtl | ComplexTextLayoutFlags::TextOriginLeft;
+ SetTextLayoutMode( nTextLayoutMode );
+ SAL_WARN_IF( ( nOptions & ( ETO_PDY | ETO_GLYPH_INDEX ) ) != 0, "vcl.wmf", "SJ: ETO_PDY || ETO_GLYPH_INDEX in WMF" );
+
+ // output only makes sense if the text contains characters
+ if (nLen)
+ {
+ sal_Int32 nOriginalTextLen = nLen;
+ sal_Int32 nOriginalBlockLen = ( nOriginalTextLen + 1 ) &~ 1;
+
+ auto nMaxStreamPos = nRecordPos + nRecSize;
+ auto nRemainingSize = std::min(mpInputStream->remainingSize(), nMaxStreamPos - mpInputStream->Tell());
+ if (nRemainingSize < o3tl::make_unsigned(nOriginalBlockLen))
+ {
+ SAL_WARN("vcl.wmf", "exttextout record claimed more data than the stream can provide");
+ nOriginalTextLen = nOriginalBlockLen = nRemainingSize;
+ }
+
+ std::unique_ptr<char[]> pChar(new char[nOriginalBlockLen]);
+ mpInputStream->ReadBytes(pChar.get(), nOriginalBlockLen);
+ OUString aText(pChar.get(), nOriginalTextLen, GetCharSet()); // after this conversion the text may contain
+ sal_Int32 nNewTextLen = aText.getLength(); // less character (japanese version), so the
+ // dxAry will not fit
+ if ( nNewTextLen )
+ {
+ std::unique_ptr<long[]> pDXAry, pDYAry;
+ auto nDxArySize = nMaxStreamPos - mpInputStream->Tell();
+ auto nDxAryEntries = nDxArySize >> 1;
+ bool bUseDXAry = false;
+
+ if ( ( ( nDxAryEntries % nOriginalTextLen ) == 0 ) && ( nNewTextLen <= nOriginalTextLen ) )
+ {
+ sal_Int32 i; // needed just outside the for
+ pDXAry.reset(new long[ nNewTextLen ]);
+ if ( nOptions & ETO_PDY )
+ {
+ pDYAry.reset(new long[ nNewTextLen ]);
+ }
+ for (i = 0; i < nNewTextLen; i++ )
+ {
+ if ( mpInputStream->Tell() >= nMaxStreamPos )
+ break;
+ sal_Int32 nDxCount = 1;
+ if ( nNewTextLen != nOriginalTextLen )
+ {
+ sal_Unicode cUniChar = aText[i];
+ OString aTmp(&cUniChar, 1, GetCharSet());
+ if ( aTmp.getLength() > 1 )
+ {
+ nDxCount = aTmp.getLength();
+ }
+ }
+
+ sal_Int16 nDx = 0, nDy = 0;
+ while ( nDxCount-- )
+ {
+ if ( ( mpInputStream->Tell() + 2 ) > nMaxStreamPos )
+ break;
+ sal_Int16 nDxTmp = 0;
+ mpInputStream->ReadInt16(nDxTmp);
+ nDx += nDxTmp;
+ if ( nOptions & ETO_PDY )
+ {
+ if ( ( mpInputStream->Tell() + 2 ) > nMaxStreamPos )
+ break;
+ sal_Int16 nDyTmp = 0;
+ mpInputStream->ReadInt16(nDyTmp);
+ nDy += nDyTmp;
+ }
+ }
+
+ pDXAry[ i ] = nDx;
+ if ( nOptions & ETO_PDY )
+ {
+ pDYAry[i] = nDy;
+ }
+ }
+ if ( i == nNewTextLen )
+ bUseDXAry = true;
+ }
+ if ( pDXAry && bUseDXAry )
+ DrawText( aPosition, aText, pDXAry.get(), pDYAry.get() );
+ else
+ DrawText( aPosition, aText );
+ }
+ }
+ }
+ break;
+
+ case W_META_SELECTOBJECT:
+ {
+ sal_Int16 nObjIndex = 0;
+ mpInputStream->ReadInt16( nObjIndex );
+ SelectObject( nObjIndex );
+ }
+ break;
+
+ case W_META_SETTEXTALIGN:
+ {
+ sal_uInt16 nAlign = 0;
+ mpInputStream->ReadUInt16( nAlign );
+ SetTextAlign( nAlign );
+ }
+ break;
+
+ case W_META_BITBLT:
+ {
+ // 0-3 : nWinROP #93454#
+ // 4-5 : y offset of source bitmap
+ // 6-7 : x offset of source bitmap
+ // 8-9 : used height of source bitmap
+ // 10-11 : used width of source bitmap
+ // 12-13 : destination position y (in pixel)
+ // 14-15 : destination position x (in pixel)
+ // 16-17 : don't know
+ // 18-19 : Width Bitmap in Pixel
+ // 20-21 : Height Bitmap in Pixel
+ // 22-23 : bytes per scanline
+ // 24 : planes
+ // 25 : bitcount
+
+ sal_Int32 nWinROP = 0;
+ sal_uInt16 nSx = 0, nSy = 0, nSxe = 0, nSye = 0, nDontKnow = 0, nWidth = 0, nHeight = 0, nBytesPerScan = 0;
+ sal_uInt8 nPlanes, nBitCount;
+
+ mpInputStream->ReadInt32( nWinROP )
+ .ReadUInt16( nSy ).ReadUInt16( nSx ).ReadUInt16( nSye ).ReadUInt16( nSxe );
+ Point aPoint( ReadYX() );
+ mpInputStream->ReadUInt16( nDontKnow ).ReadUInt16( nWidth ).ReadUInt16( nHeight ).ReadUInt16( nBytesPerScan ).ReadUChar( nPlanes ).ReadUChar( nBitCount );
+
+ bool bOk = nWidth && nHeight && nPlanes == 1 && nBitCount == 1 && nBytesPerScan != 0;
+ if (bOk)
+ {
+ // must be enough data to fulfil the request
+ bOk = nBytesPerScan <= mpInputStream->remainingSize() / nHeight;
+ }
+ if (bOk)
+ {
+ // scanline must be large enough to provide all pixels
+ bOk = nBytesPerScan >= nWidth / 8;
+ }
+ if (bOk)
+ {
+ vcl::bitmap::RawBitmap aBmp( Size( nWidth, nHeight ), 24 );
+ for (sal_uInt16 y = 0; y < nHeight && mpInputStream->good(); ++y)
+ {
+ sal_uInt16 x = 0;
+ for (sal_uInt16 scan = 0; scan < nBytesPerScan; scan++ )
+ {
+ sal_Int8 nEightPixels = 0;
+ mpInputStream->ReadSChar( nEightPixels );
+ for (sal_Int8 i = 7; i >= 0; i-- )
+ {
+ if ( x < nWidth )
+ {
+ aBmp.SetPixel( y, x, ((nEightPixels>>i)&1) ? COL_BLACK : COL_WHITE );
+ }
+ x++;
+ }
+ }
+ }
+ BitmapEx aBitmap = vcl::bitmap::CreateFromData(std::move(aBmp));
+ if ( nSye && nSxe &&
+ ( nSx + nSxe <= nWidth ) &&
+ ( nSy + nSye <= nHeight ) )
+ {
+ tools::Rectangle aCropRect( Point( nSx, nSy ), Size( nSxe, nSye ) );
+ aBitmap.Crop( aCropRect );
+ }
+ tools::Rectangle aDestRect( aPoint, Size( nSxe, nSye ) );
+ maBmpSaveList.emplace_back(new BSaveStruct(aBitmap, aDestRect, nWinROP));
+ }
+ }
+ break;
+
+ case W_META_STRETCHBLT:
+ case W_META_DIBBITBLT:
+ case W_META_DIBSTRETCHBLT:
+ case W_META_STRETCHDIB:
+ {
+ sal_Int32 nWinROP = 0;
+ sal_uInt16 nSx = 0, nSy = 0, nSxe = 0, nSye = 0, nUsage = 0;
+ Bitmap aBmp;
+
+ mpInputStream->ReadInt32( nWinROP );
+
+ if( nFunc == W_META_STRETCHDIB )
+ mpInputStream->ReadUInt16( nUsage );
+
+ // nSye and nSxe is the number of pixels that has to been used
+ // If they are set to zero, it is as indicator not to scale the bitmap later
+
+ if( nFunc == W_META_STRETCHDIB || nFunc == W_META_STRETCHBLT || nFunc == W_META_DIBSTRETCHBLT )
+ mpInputStream->ReadUInt16( nSye ).ReadUInt16( nSxe );
+
+ // nSy and nx is the offset of the first pixel
+ mpInputStream->ReadUInt16( nSy ).ReadUInt16( nSx );
+
+ if( nFunc == W_META_STRETCHDIB || nFunc == W_META_DIBBITBLT || nFunc == W_META_DIBSTRETCHBLT )
+ {
+ if ( nWinROP == PATCOPY )
+ mpInputStream->ReadUInt16( nUsage ); // i don't know anything of this parameter, so it's called nUsage
+ // DrawRect( Rectangle( ReadYX(), aDestSize ), false );
+
+ Size aDestSize( ReadYXExt() );
+ if ( aDestSize.Width() && aDestSize.Height() ) // #92623# do not try to read buggy bitmaps
+ {
+ tools::Rectangle aDestRect( ReadYX(), aDestSize );
+ if ( nWinROP != PATCOPY )
+ ReadDIB(aBmp, *mpInputStream, false);
+
+ // test if it is sensible to crop
+ if ( nSye && nSxe &&
+ ( nSx + nSxe <= aBmp.GetSizePixel().Width() ) &&
+ ( nSy + nSye <= aBmp.GetSizePixel().Height() ) )
+ {
+ tools::Rectangle aCropRect( Point( nSx, nSy ), Size( nSxe, nSye ) );
+ aBmp.Crop( aCropRect );
+ }
+ maBmpSaveList.emplace_back(new BSaveStruct(aBmp, aDestRect, nWinROP));
+ }
+ }
+ }
+ break;
+
+ case W_META_DIBCREATEPATTERNBRUSH:
+ {
+ Bitmap aBmp;
+ sal_uInt32 nRed = 0, nGreen = 0, nBlue = 0, nCount = 1;
+ sal_uInt16 nFunction = 0;
+
+ mpInputStream->ReadUInt16( nFunction ).ReadUInt16( nFunction );
+
+ ReadDIB(aBmp, *mpInputStream, false);
+ if ( !!aBmp )
+ {
+ Bitmap::ScopedReadAccess pBmp(aBmp);
+ for ( long y = 0; y < pBmp->Height(); y++ )
+ {
+ for ( long x = 0; x < pBmp->Width(); x++ )
+ {
+ const BitmapColor aColor( pBmp->GetColor( y, x ) );
+
+ nRed += aColor.GetRed();
+ nGreen += aColor.GetGreen();
+ nBlue += aColor.GetBlue();
+ }
+ }
+ nCount = pBmp->Height() * pBmp->Width();
+ if ( !nCount )
+ nCount++;
+ }
+ Color aColor( static_cast<sal_uInt8>( nRed / nCount ), static_cast<sal_uInt8>( nGreen / nCount ), static_cast<sal_uInt8>( nBlue / nCount ) );
+ CreateObject(std::make_unique<WinMtfFillStyle>( aColor, false ));
+ }
+ break;
+
+ case W_META_DELETEOBJECT:
+ {
+ sal_Int16 nIndex = 0;
+ mpInputStream->ReadInt16( nIndex );
+ DeleteObject( nIndex );
+ }
+ break;
+
+ case W_META_CREATEPALETTE:
+ {
+ CreateObject();
+ }
+ break;
+
+ case W_META_CREATEBRUSH:
+ {
+ CreateObject(std::make_unique<WinMtfFillStyle>( COL_WHITE, false ));
+ }
+ break;
+
+ case W_META_CREATEPATTERNBRUSH:
+ {
+ CreateObject(std::make_unique<WinMtfFillStyle>( COL_WHITE, false ));
+ }
+ break;
+
+ case W_META_CREATEPENINDIRECT:
+ {
+ LineInfo aLineInfo;
+ sal_uInt16 nStyle = 0;
+ sal_uInt16 nWidth = 0;
+ sal_uInt16 nHeight = 0;
+
+ mpInputStream->ReadUInt16(nStyle);
+ mpInputStream->ReadUInt16(nWidth);
+ mpInputStream->ReadUInt16(nHeight);
+
+ if (nWidth > 0)
+ aLineInfo.SetWidth(nWidth);
+
+ bool bTransparent = false;
+
+ switch( nStyle & 0xFF )
+ {
+ case PS_DASHDOTDOT :
+ aLineInfo.SetStyle( LineStyle::Dash );
+ aLineInfo.SetDashCount( 1 );
+ aLineInfo.SetDotCount( 2 );
+ break;
+ case PS_DASHDOT :
+ aLineInfo.SetStyle( LineStyle::Dash );
+ aLineInfo.SetDashCount( 1 );
+ aLineInfo.SetDotCount( 1 );
+ break;
+ case PS_DOT :
+ aLineInfo.SetStyle( LineStyle::Dash );
+ aLineInfo.SetDashCount( 0 );
+ aLineInfo.SetDotCount( 1 );
+ break;
+ case PS_DASH :
+ aLineInfo.SetStyle( LineStyle::Dash );
+ aLineInfo.SetDashCount( 1 );
+ aLineInfo.SetDotCount( 0 );
+ break;
+ case PS_NULL :
+ bTransparent = true;
+ aLineInfo.SetStyle( LineStyle::NONE );
+ break;
+ default :
+ case PS_INSIDEFRAME :
+ case PS_SOLID :
+ aLineInfo.SetStyle( LineStyle::Solid );
+ }
+ switch( nStyle & 0xF00 )
+ {
+ case PS_ENDCAP_ROUND :
+ aLineInfo.SetLineCap( css::drawing::LineCap_ROUND );
+ break;
+ case PS_ENDCAP_SQUARE :
+ aLineInfo.SetLineCap( css::drawing::LineCap_SQUARE );
+ break;
+ case PS_ENDCAP_FLAT :
+ default :
+ aLineInfo.SetLineCap( css::drawing::LineCap_BUTT );
+ }
+ switch( nStyle & 0xF000 )
+ {
+ case PS_JOIN_ROUND :
+ aLineInfo.SetLineJoin ( basegfx::B2DLineJoin::Round );
+ break;
+ case PS_JOIN_MITER :
+ aLineInfo.SetLineJoin ( basegfx::B2DLineJoin::Miter );
+ break;
+ case PS_JOIN_BEVEL :
+ aLineInfo.SetLineJoin ( basegfx::B2DLineJoin::Bevel );
+ break;
+ default :
+ aLineInfo.SetLineJoin ( basegfx::B2DLineJoin::NONE );
+ }
+ CreateObject(std::make_unique<WinMtfLineStyle>( ReadColor(), aLineInfo, bTransparent ));
+ }
+ break;
+
+ case W_META_CREATEBRUSHINDIRECT:
+ {
+ sal_uInt16 nStyle = 0;
+ mpInputStream->ReadUInt16( nStyle );
+ CreateObject(std::make_unique<WinMtfFillStyle>( ReadColor(), ( nStyle == BS_HOLLOW ) ));
+ }
+ break;
+
+ case W_META_CREATEFONTINDIRECT:
+ {
+ Size aFontSize;
+ char lfFaceName[LF_FACESIZE+1];
+ sal_Int16 lfEscapement = 0;
+ sal_Int16 lfOrientation = 0;
+ sal_Int16 lfWeight = 0;
+
+ LOGFONTW aLogFont;
+ aFontSize = ReadYXExt();
+ mpInputStream->ReadInt16( lfEscapement );
+ mpInputStream->ReadInt16( lfOrientation );
+ mpInputStream->ReadInt16( lfWeight );
+ mpInputStream->ReadUChar( aLogFont.lfItalic );
+ mpInputStream->ReadUChar( aLogFont.lfUnderline );
+ mpInputStream->ReadUChar( aLogFont.lfStrikeOut );
+ mpInputStream->ReadUChar( aLogFont.lfCharSet );
+ mpInputStream->ReadUChar( aLogFont.lfOutPrecision );
+ mpInputStream->ReadUChar( aLogFont.lfClipPrecision );
+ mpInputStream->ReadUChar( aLogFont.lfQuality );
+ mpInputStream->ReadUChar( aLogFont.lfPitchAndFamily );
+ size_t nRet = mpInputStream->ReadBytes( lfFaceName, LF_FACESIZE );
+ lfFaceName[nRet] = 0;
+ aLogFont.lfWidth = aFontSize.Width();
+ aLogFont.lfHeight = aFontSize.Height();
+ aLogFont.lfEscapement = lfEscapement;
+ aLogFont.lfOrientation = lfOrientation;
+ aLogFont.lfWeight = lfWeight;
+
+ rtl_TextEncoding eCharSet;
+ if ( ( aLogFont.lfCharSet == OEM_CHARSET ) || ( aLogFont.lfCharSet == DEFAULT_CHARSET ) )
+ eCharSet = osl_getThreadTextEncoding();
+ else
+ eCharSet = rtl_getTextEncodingFromWindowsCharset( aLogFont.lfCharSet );
+ if ( eCharSet == RTL_TEXTENCODING_DONTKNOW )
+ eCharSet = osl_getThreadTextEncoding();
+ if ( eCharSet == RTL_TEXTENCODING_SYMBOL )
+ eCharSet = RTL_TEXTENCODING_MS_1252;
+ aLogFont.alfFaceName = OUString( lfFaceName, strlen(lfFaceName), eCharSet );
+
+ CreateObject(std::make_unique<WinMtfFontStyle>( aLogFont ));
+ }
+ break;
+
+ case W_META_CREATEBITMAPINDIRECT:
+ {
+ CreateObject();
+ }
+ break;
+
+ case W_META_CREATEBITMAP:
+ {
+ CreateObject();
+ }
+ break;
+
+ case W_META_CREATEREGION:
+ {
+ CreateObject();
+ }
+ break;
+
+ case W_META_EXCLUDECLIPRECT :
+ {
+ ExcludeClipRect( ReadRectangle() );
+ }
+ break;
+
+ case W_META_PATBLT:
+ {
+ sal_uInt32 nROP = 0;
+ WMFRasterOp nOldROP = WMFRasterOp::NONE;
+ mpInputStream->ReadUInt32( nROP );
+ Size aSize = ReadYXExt();
+ nOldROP = SetRasterOp( static_cast<WMFRasterOp>(nROP) );
+ DrawRect( tools::Rectangle( ReadYX(), aSize ), false );
+ SetRasterOp( nOldROP );
+ }
+ break;
+
+ case W_META_SELECTCLIPREGION:
+ {
+ sal_Int16 nObjIndex = 0;
+ mpInputStream->ReadInt16( nObjIndex );
+ if ( !nObjIndex )
+ {
+ tools::PolyPolygon aEmptyPolyPoly;
+ SetClipPath( aEmptyPolyPoly, RGN_COPY, true );
+ }
+ }
+ break;
+
+ case W_META_ESCAPE :
+ {
+ // mnRecSize has been checked previously to be greater than 3
+ sal_uInt64 nMetaRecSize = static_cast< sal_uInt64 >(mnRecSize - 2 ) * 2;
+ sal_uInt64 nMetaRecEndPos = mpInputStream->Tell() + nMetaRecSize;
+
+ // taking care that mnRecSize does not exceed the maximal stream position
+ if ( nMetaRecEndPos > mnEndPos )
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ break;
+ }
+ if (mnRecSize >= 4 ) // minimal escape length
+ {
+ sal_uInt16 nMode = 0, nLen = 0;
+ mpInputStream->ReadUInt16( nMode )
+ .ReadUInt16( nLen );
+ if ( ( nMode == W_MFCOMMENT ) && ( nLen >= 4 ) )
+ {
+ sal_uInt32 nNewMagic = 0; // we have to read int32 for
+ mpInputStream->ReadUInt32( nNewMagic ); // META_ESCAPE_ENHANCED_METAFILE CommentIdentifier
+
+ if( nNewMagic == 0x2c2a4f4f && nLen >= 14 )
+ {
+ sal_uInt16 nMagic2 = 0;
+ mpInputStream->ReadUInt16( nMagic2 );
+ if( nMagic2 == 0x0a ) // 2nd half of magic
+ { // continue with private escape
+ sal_uInt32 nCheck = 0, nEsc = 0;
+ mpInputStream->ReadUInt32( nCheck )
+ .ReadUInt32( nEsc );
+
+ sal_uInt32 nEscLen = nLen - 14;
+ if ( nEscLen <= (mnRecSize * 2 ) )
+ {
+ #ifdef OSL_BIGENDIAN
+ sal_uInt32 nTmp = OSL_SWAPDWORD( nEsc );
+ sal_uInt32 nCheckSum = rtl_crc32( 0, &nTmp, 4 );
+ #else
+ sal_uInt32 nCheckSum = rtl_crc32( 0, &nEsc, 4 );
+ #endif
+ std::unique_ptr<sal_Int8[]> pData;
+
+ if ( ( static_cast< sal_uInt64 >( nEscLen ) + mpInputStream->Tell() ) > nMetaRecEndPos )
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ break;
+ }
+ if ( nEscLen > 0 )
+ {
+ pData.reset(new sal_Int8[ nEscLen ]);
+ mpInputStream->ReadBytes(pData.get(), nEscLen);
+ nCheckSum = rtl_crc32( nCheckSum, pData.get(), nEscLen );
+ }
+ if ( nCheck == nCheckSum )
+ {
+ switch( nEsc )
+ {
+ case PRIVATE_ESCAPE_UNICODE :
+ {
+ // we will use text instead of polygons only if we have the correct font
+ if ( Application::GetDefaultDevice()->IsFontAvailable( GetFont().GetFamilyName() ) )
+ {
+ Point aPt;
+ OUString aString;
+ sal_uInt32 nStringLen, nDXCount;
+ std::unique_ptr<long[]> pDXAry;
+ SvMemoryStream aMemoryStream( nEscLen );
+ aMemoryStream.WriteBytes(pData.get(), nEscLen);
+ aMemoryStream.Seek( STREAM_SEEK_TO_BEGIN );
+ sal_Int32 nTmpX(0), nTmpY(0);
+ aMemoryStream.ReadInt32( nTmpX )
+ .ReadInt32( nTmpY )
+ .ReadUInt32( nStringLen );
+ aPt.setX( nTmpX );
+ aPt.setY( nTmpY );
+
+ if ( ( static_cast< sal_uInt64 >( nStringLen ) * sizeof( sal_Unicode ) ) < ( nEscLen - aMemoryStream.Tell() ) )
+ {
+
+ aString = read_uInt16s_ToOUString(aMemoryStream, nStringLen);
+ aMemoryStream.ReadUInt32( nDXCount );
+ if ( ( static_cast< sal_uInt64 >( nDXCount ) * sizeof( sal_Int32 ) ) >= ( nEscLen - aMemoryStream.Tell() ) )
+ nDXCount = 0;
+ if ( nDXCount )
+ pDXAry.reset(new long[ nDXCount ]);
+ for (sal_uInt32 i = 0; i < nDXCount; i++ )
+ {
+ sal_Int32 val;
+ aMemoryStream.ReadInt32( val);
+ pDXAry[ i ] = val;
+ }
+ aMemoryStream.ReadUInt32(mnSkipActions);
+ DrawText( aPt, aString, pDXAry.get() );
+ }
+ }
+ }
+ break;
+ }
+ }
+ }
+ }
+ }
+ else if ( (nNewMagic == static_cast< sal_uInt32 >(0x43464D57)) && (nLen >= 34) && ( static_cast<sal_Int32>(nLen + 10) <= static_cast<sal_Int32>(mnRecSize * 2) ))
+ {
+ sal_uInt32 nComType = 0, nVersion = 0, nFlags = 0, nComRecCount = 0,
+ nCurRecSize = 0, nRemainingSize = 0, nEMFTotalSize = 0;
+ sal_uInt16 nCheck = 0;
+
+ mpInputStream->ReadUInt32( nComType ).ReadUInt32( nVersion ).ReadUInt16( nCheck ).ReadUInt32( nFlags )
+ .ReadUInt32( nComRecCount ).ReadUInt32( nCurRecSize )
+ .ReadUInt32( nRemainingSize ).ReadUInt32( nEMFTotalSize ); // the nRemainingSize is not mentioned in MSDN documentation
+ // but it seems to be required to read in data produced by OLE
+
+ if( nComType == 0x01 && nVersion == 0x10000 && nComRecCount )
+ {
+ if( !mnEMFRec)
+ { // first EMF comment
+ mnEMFRecCount = nComRecCount;
+ mnEMFSize = nEMFTotalSize;
+ if (mnEMFSize > mpInputStream->remainingSize())
+ {
+ SAL_WARN("vcl.wmf", "emf size claims to be larger than remaining data");
+ mpEMFStream.reset();
+ }
+ else
+ mpEMFStream = std::make_unique<SvMemoryStream>(mnEMFSize, 0);
+ }
+ else if( (mnEMFRecCount != nComRecCount ) || (mnEMFSize != nEMFTotalSize ) ) // add additional checks here
+ {
+ // total records should be the same as in previous comments
+ mnEMFRecCount = 0xFFFFFFFF;
+ mpEMFStream.reset();
+ }
+ mnEMFRec++;
+
+ if (mpEMFStream && nCurRecSize + 34 > nLen)
+ {
+ mnEMFRecCount = 0xFFFFFFFF;
+ mpEMFStream.reset();
+ }
+
+ if (mpEMFStream && nCurRecSize > mpInputStream->remainingSize())
+ {
+ SAL_WARN("vcl.wmf", "emf record size claims to be larger than remaining data");
+ mnEMFRecCount = 0xFFFFFFFF;
+ mpEMFStream.reset();
+ }
+
+ if (mpEMFStream)
+ {
+ std::vector<sal_Int8> aBuf(nCurRecSize);
+ sal_uInt32 nCount = mpInputStream->ReadBytes(aBuf.data(), nCurRecSize);
+ if( nCount == nCurRecSize )
+ mpEMFStream->WriteBytes(aBuf.data(), nCount);
+ }
+ }
+ }
+ }
+ }
+ }
+ break;
+
+ case W_META_SETRELABS:
+ case W_META_SETPOLYFILLMODE:
+ case W_META_SETSTRETCHBLTMODE:
+ case W_META_SETTEXTCHAREXTRA:
+ case W_META_SETTEXTJUSTIFICATION:
+ case W_META_FLOODFILL :
+ case W_META_FILLREGION:
+ case W_META_FRAMEREGION:
+ case W_META_INVERTREGION:
+ case W_META_PAINTREGION:
+ case W_META_DRAWTEXT:
+ case W_META_SETMAPPERFLAGS:
+ case W_META_SETDIBTODEV:
+ case W_META_SELECTPALETTE:
+ case W_META_REALIZEPALETTE:
+ case W_META_ANIMATEPALETTE:
+ case W_META_SETPALENTRIES:
+ case W_META_RESIZEPALETTE:
+ case W_META_EXTFLOODFILL:
+ case W_META_RESETDC:
+ case W_META_STARTDOC:
+ case W_META_STARTPAGE:
+ case W_META_ENDPAGE:
+ case W_META_ABORTDOC:
+ case W_META_ENDDOC:
+ break;
+ }
+ }
+
+ static const long aMaxWidth = 1024;
+
+ bool WmfReader::ReadHeader()
+ {
+ sal_uInt64 const nStrmPos = mpInputStream->Tell();
+
+ sal_uInt32 nPlaceableMetaKey(0);
+ // if available read the METAFILEHEADER
+ mpInputStream->ReadUInt32( nPlaceableMetaKey );
+ if (!mpInputStream->good())
+ return false;
+
+ tools::Rectangle aPlaceableBound;
+
+ bool bPlaceable = nPlaceableMetaKey == 0x9ac6cdd7L;
+
+ SAL_INFO("vcl.wmf", "Placeable: \"" << (bPlaceable ? "yes" : "no") << "\"");
+
+ if (bPlaceable)
+ {
+ //TODO do some real error handling here
+ sal_Int16 nVal;
+
+ // Skip reserved bytes
+ mpInputStream->SeekRel(2);
+
+ // BoundRect
+ mpInputStream->ReadInt16( nVal );
+ aPlaceableBound.SetLeft( nVal );
+ mpInputStream->ReadInt16( nVal );
+ aPlaceableBound.SetTop( nVal );
+ mpInputStream->ReadInt16( nVal );
+ aPlaceableBound.SetRight( nVal );
+ mpInputStream->ReadInt16( nVal );
+ aPlaceableBound.SetBottom( nVal );
+
+ // inch
+ mpInputStream->ReadUInt16( mnUnitsPerInch );
+
+ // reserved
+ mpInputStream->SeekRel( 4 );
+
+ // Skip and don't check the checksum
+ mpInputStream->SeekRel( 2 );
+ }
+ else
+ {
+ mnUnitsPerInch = 96;
+
+ if (mpExternalHeader != nullptr
+ && mpExternalHeader->xExt > 0
+ && mpExternalHeader->yExt > 0
+ && (mpExternalHeader->mapMode == MM_ISOTROPIC || mpExternalHeader->mapMode == MM_ANISOTROPIC))
+ {
+ // #n417818#: If we have an external header then overwrite the bounds!
+ tools::Rectangle aExtRect(0, 0,
+ static_cast<double>(mpExternalHeader->xExt) * 567 * mnUnitsPerInch / 1440000,
+ static_cast<double>(mpExternalHeader->yExt) * 567 * mnUnitsPerInch / 1440000);
+ aPlaceableBound = aExtRect;
+
+ SAL_INFO("vcl.wmf", "External header size "
+ " t: " << aPlaceableBound.Left() << " l: " << aPlaceableBound.Top()
+ << " b: " << aPlaceableBound.Right() << " r: " << aPlaceableBound.Bottom());
+
+ SetMapMode(mpExternalHeader->mapMode);
+ }
+ else
+ {
+ mpInputStream->Seek(nStrmPos + 18); // set the streampos to the start of the metaactions
+ GetPlaceableBound(aPlaceableBound, mpInputStream);
+
+ // The image size is not known so normalize the calculated bounds so that the
+ // resulting image is not too big
+ const double fMaxWidth = static_cast<double>(aMaxWidth);
+ if (aPlaceableBound.GetWidth() > aMaxWidth)
+ {
+ double fRatio = aPlaceableBound.GetWidth() / fMaxWidth;
+
+ aPlaceableBound = tools::Rectangle(
+ aPlaceableBound.Left() / fRatio,
+ aPlaceableBound.Top() / fRatio,
+ aPlaceableBound.Right() / fRatio,
+ aPlaceableBound.Bottom() / fRatio);
+
+ SAL_INFO("vcl.wmf", "Placeable bounds "
+ " t: " << aPlaceableBound.Left() << " l: " << aPlaceableBound.Top()
+ << " b: " << aPlaceableBound.Right() << " r: " << aPlaceableBound.Bottom());
+ }
+ }
+
+ mpInputStream->Seek( nStrmPos );
+ }
+
+ SetWinOrg( aPlaceableBound.TopLeft() );
+ Size aWMFSize( labs( aPlaceableBound.GetWidth() ), labs( aPlaceableBound.GetHeight() ) );
+ SetWinExt( aWMFSize );
+
+ SAL_INFO("vcl.wmf", "WMF size w: " << aWMFSize.Width() << " h: " << aWMFSize.Height());
+
+ Size aDevExt( 10000, 10000 );
+ if( ( labs( aWMFSize.Width() ) > 1 ) && ( labs( aWMFSize.Height() ) > 1 ) )
+ {
+ const Fraction aFrac( 1, mnUnitsPerInch);
+ MapMode aWMFMap( MapUnit::MapInch, Point(), aFrac, aFrac );
+ Size aSize100(OutputDevice::LogicToLogic(aWMFSize, aWMFMap, MapMode(MapUnit::Map100thMM)));
+ aDevExt = Size( labs( aSize100.Width() ), labs( aSize100.Height() ) );
+ }
+ SetDevExt( aDevExt );
+
+ SAL_INFO("vcl.wmf", "Dev size w: " << aDevExt.Width() << " h: " << aDevExt.Height());
+
+ // read the METAHEADER
+ sal_uInt32 nMetaKey(0);
+ mpInputStream->ReadUInt32( nMetaKey ); // type and headersize
+ if (!mpInputStream->good())
+ return false;
+ if (nMetaKey != 0x00090001)
+ {
+ sal_uInt16 aNextWord(0);
+ mpInputStream->ReadUInt16( aNextWord );
+ if (nMetaKey != 0x10000 || aNextWord != 0x09)
+ {
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ return false;
+ }
+ }
+
+ mpInputStream->SeekRel( 2 ); // Version (of Windows)
+ mpInputStream->SeekRel( 4 ); // Size (of file in words)
+ mpInputStream->SeekRel( 2 ); // NoObjects (maximum number of simultaneous objects)
+ mpInputStream->SeekRel( 4 ); // MaxRecord (size of largest record in words)
+ mpInputStream->SeekRel( 2 ); // NoParameters (Unused
+
+ return mpInputStream->good();
+ }
+
+ void WmfReader::ReadWMF()
+ {
+ sal_uInt16 nFunction;
+
+ mnSkipActions = 0;
+
+ mpEMFStream.reset();
+ mnEMFRecCount = 0;
+ mnEMFRec = 0;
+ mnEMFSize = 0;
+
+ SetMapMode( MM_ANISOTROPIC );
+ SetWinOrg( Point() );
+ SetWinExt( Size( 1, 1 ) );
+ SetDevExt( Size( 10000, 10000 ) );
+
+ mnEndPos=mpInputStream->TellEnd();
+ mpInputStream->Seek( mnStartPos );
+
+ if ( ReadHeader( ) )
+ {
+ auto nPos = mpInputStream->Tell();
+
+ if( mnEndPos - mnStartPos )
+ {
+ bool bEMFAvailable = false;
+ while( true )
+ {
+ mpInputStream->ReadUInt32(mnRecSize).ReadUInt16( nFunction );
+
+ if (
+ !mpInputStream->good() ||
+ (mnRecSize < 3) ||
+ (mnRecSize == 3 && nFunction == 0)
+ )
+ {
+ if( mpInputStream->eof() )
+ mpInputStream->SetError( SVSTREAM_FILEFORMAT_ERROR );
+
+ break;
+ }
+
+ const sal_uInt32 nAvailableBytes = mnEndPos - nPos;
+ const sal_uInt32 nMaxPossibleRecordSize = nAvailableBytes/2;
+ if (mnRecSize > nMaxPossibleRecordSize)
+ {
+ mpInputStream->SetError(SVSTREAM_FILEFORMAT_ERROR);
+ break;
+ }
+
+ if ( !bEMFAvailable )
+ {
+ if( !maBmpSaveList.empty()
+ && ( nFunction != W_META_STRETCHDIB )
+ && ( nFunction != W_META_DIBBITBLT )
+ && ( nFunction != W_META_DIBSTRETCHBLT )
+ )
+ {
+ ResolveBitmapActions( maBmpSaveList );
+ }
+
+ if ( !mnSkipActions)
+ ReadRecordParams( nFunction );
+ else
+ mnSkipActions--;
+
+ if(mpEMFStream && mnEMFRecCount == mnEMFRec)
+ {
+ GDIMetaFile aMeta;
+ mpEMFStream->Seek( 0 );
+ std::unique_ptr<EmfReader> pEMFReader(std::make_unique<EmfReader>( *mpEMFStream, aMeta ));
+ bEMFAvailable = pEMFReader->ReadEnhWMF();
+ pEMFReader.reset(); // destroy first!!!
+
+ if( bEMFAvailable )
+ {
+ AddFromGDIMetaFile( aMeta );
+ SetrclFrame( tools::Rectangle( Point(0, 0), aMeta.GetPrefSize()));
+
+ // the stream needs to be set to the wmf end position,
+ // otherwise the GfxLink that is created will be incorrect
+ // (leading to graphic loss after swapout/swapin).
+ // so we will proceed normally, but are ignoring further wmf
+ // records
+ }
+ else
+ {
+ // something went wrong
+ // continue with WMF, don't try this again
+ mpEMFStream.reset();
+ }
+ }
+ }
+
+ nPos += mnRecSize * 2;
+ mpInputStream->Seek(nPos);
+ }
+ }
+ else
+ mpInputStream->SetError( SVSTREAM_GENERALERROR );
+
+ if( !mpInputStream->GetError() && !maBmpSaveList.empty() )
+ ResolveBitmapActions( maBmpSaveList );
+ }
+ if ( mpInputStream->GetError() )
+ mpInputStream->Seek( mnStartPos );
+ }
+
+ void WmfReader::GetPlaceableBound( tools::Rectangle& rPlaceableBound, SvStream* pStm )
+ {
+ bool bRet = true;
+
+ tools::Rectangle aBound;
+ aBound.SetLeft( RECT_MAX );
+ aBound.SetTop( RECT_MAX );
+ aBound.SetRight( RECT_MIN );
+ aBound.SetBottom( RECT_MIN );
+ bool bBoundsDetermined = false;
+
+ auto nPos = pStm->Tell();
+ auto nEnd = nPos + pStm->remainingSize();
+
+ Point aWinOrg(0,0);
+ std::optional<Size> aWinExt;
+
+ Point aViewportOrg(0,0);
+ std::optional<Size> aViewportExt;
+
+ if (nEnd - nPos)
+ {
+ sal_Int16 nMapMode = MM_ANISOTROPIC;
+ sal_uInt16 nFunction;
+ sal_uInt32 nRSize;
+
+ while( bRet )
+ {
+ pStm->ReadUInt32( nRSize ).ReadUInt16( nFunction );
+
+ if( pStm->GetError() )
+ {
+ bRet = false;
+ break;
+ }
+ else if ( nRSize==3 && nFunction==0 )
+ {
+ break;
+ }
+ else if ( nRSize < 3 || pStm->eof() )
+ {
+ pStm->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ bRet = false;
+ break;
+ }
+ switch( nFunction )
+ {
+ case W_META_SETWINDOWORG:
+ {
+ aWinOrg = ReadYX();
+ }
+ break;
+
+ case W_META_SETWINDOWEXT:
+ {
+ sal_Int16 nWidth(0), nHeight(0);
+ pStm->ReadInt16(nHeight);
+ pStm->ReadInt16(nWidth);
+ aWinExt = Size(nWidth, nHeight);
+ }
+ break;
+
+ case W_META_SETVIEWPORTORG:
+ {
+ aViewportOrg = ReadYX();
+ }
+ break;
+
+ case W_META_SETVIEWPORTEXT:
+ {
+ sal_Int16 nWidth(0), nHeight(0);
+ pStm->ReadInt16(nHeight);
+ pStm->ReadInt16(nWidth);
+ aViewportExt = Size(nWidth, nHeight);
+ }
+ break;
+
+ case W_META_SETMAPMODE :
+ pStm->ReadInt16( nMapMode );
+ break;
+
+ case W_META_MOVETO:
+ case W_META_LINETO:
+ GetWinExtMax( ReadYX(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ break;
+
+ case W_META_RECTANGLE:
+ case W_META_INTERSECTCLIPRECT:
+ case W_META_EXCLUDECLIPRECT :
+ case W_META_ELLIPSE:
+ GetWinExtMax( ReadRectangle(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ break;
+
+ case W_META_ROUNDRECT:
+ ReadYXExt(); // size
+ GetWinExtMax( ReadRectangle(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ break;
+
+ case W_META_ARC:
+ case W_META_PIE:
+ case W_META_CHORD:
+ ReadYX(); // end
+ ReadYX(); // start
+ GetWinExtMax( ReadRectangle(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ break;
+
+ case W_META_POLYGON:
+ {
+ bool bRecordOk = true;
+
+ sal_uInt16 nPoints(0);
+ pStm->ReadUInt16( nPoints );
+
+ if (nPoints > pStm->remainingSize() / (2 * sizeof(sal_uInt16)))
+ {
+ bRecordOk = false;
+ }
+ else
+ {
+ for(sal_uInt16 i = 0; i < nPoints; i++ )
+ {
+ GetWinExtMax( ReadPoint(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ }
+ }
+
+ SAL_WARN_IF(!bRecordOk, "vcl.wmf", "polyline record claimed more points than the stream can provide");
+
+ if (!bRecordOk)
+ {
+ pStm->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ bRet = false;
+ break;
+ }
+ }
+ break;
+
+ case W_META_POLYPOLYGON:
+ {
+ bool bRecordOk = true;
+ sal_uInt16 nPoly(0), nPoints(0);
+ pStm->ReadUInt16(nPoly);
+ if (nPoly > pStm->remainingSize() / sizeof(sal_uInt16))
+ {
+ bRecordOk = false;
+ }
+ else
+ {
+ for(sal_uInt16 i = 0; i < nPoly; i++ )
+ {
+ sal_uInt16 nP = 0;
+ pStm->ReadUInt16( nP );
+ if (nP > SAL_MAX_UINT16 - nPoints)
+ {
+ bRecordOk = false;
+ break;
+ }
+ nPoints += nP;
+ }
+ }
+
+ SAL_WARN_IF(!bRecordOk, "vcl.wmf", "polypolygon record has more polygons than we can handle");
+
+ bRecordOk = bRecordOk && pStm->good();
+
+ if (!bRecordOk)
+ {
+ pStm->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ bRet = false;
+ break;
+ }
+
+ if (nPoints > pStm->remainingSize() / (2 * sizeof(sal_uInt16)))
+ {
+ bRecordOk = false;
+ }
+ else
+ {
+ for (sal_uInt16 i = 0; i < nPoints; i++ )
+ {
+ GetWinExtMax( ReadPoint(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ }
+ }
+
+ SAL_WARN_IF(!bRecordOk, "vcl.wmf", "polypolygon record claimed more points than the stream can provide");
+
+ bRecordOk &= pStm->good();
+
+ if (!bRecordOk)
+ {
+ pStm->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ bRet = false;
+ break;
+ }
+ }
+ break;
+
+ case W_META_POLYLINE:
+ {
+ bool bRecordOk = true;
+
+ sal_uInt16 nPoints(0);
+ pStm->ReadUInt16(nPoints);
+ if (nPoints > pStm->remainingSize() / (2 * sizeof(sal_uInt16)))
+ {
+ bRecordOk = false;
+ }
+ else
+ {
+ for (sal_uInt16 i = 0; i < nPoints; ++i)
+ {
+ GetWinExtMax( ReadPoint(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ }
+ }
+
+ SAL_WARN_IF(!bRecordOk, "vcl.wmf", "polyline record claimed more points than the stream can provide");
+
+ if (!bRecordOk)
+ {
+ pStm->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ bRet = false;
+ break;
+ }
+ }
+ break;
+
+ case W_META_SETPIXEL:
+ {
+ ReadColor();
+ GetWinExtMax( ReadYX(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ }
+ break;
+
+ case W_META_TEXTOUT:
+ {
+ sal_uInt16 nLength;
+ pStm->ReadUInt16( nLength );
+ // todo: we also have to take care of the text width
+ if ( nLength )
+ {
+ pStm->SeekRel( ( nLength + 1 ) &~ 1 );
+ GetWinExtMax( ReadYX(), aBound, nMapMode );
+ bBoundsDetermined = true;
+ }
+ }
+ break;
+
+ case W_META_EXTTEXTOUT:
+ {
+ sal_uInt16 nLen, nOptions;
+ Point aPosition = ReadYX();
+ pStm->ReadUInt16( nLen ).ReadUInt16( nOptions );
+ // todo: we also have to take care of the text width
+ if( nLen )
+ {
+ GetWinExtMax( aPosition, aBound, nMapMode );
+ bBoundsDetermined = true;
+ }
+ }
+ break;
+ case W_META_BITBLT:
+ case W_META_STRETCHBLT:
+ case W_META_DIBBITBLT:
+ case W_META_DIBSTRETCHBLT:
+ case W_META_STRETCHDIB:
+ {
+ sal_Int32 nWinROP;
+ sal_uInt16 nSx, nSy, nUsage;
+ pStm->ReadInt32( nWinROP );
+
+ if( nFunction == W_META_STRETCHDIB )
+ pStm->ReadUInt16( nUsage );
+
+ // nSye and nSxe is the number of pixels that has to been used
+ if( nFunction == W_META_STRETCHDIB || nFunction == W_META_STRETCHBLT || nFunction == W_META_DIBSTRETCHBLT )
+ {
+ sal_uInt16 nSxe, nSye;
+ pStm->ReadUInt16( nSye ).ReadUInt16( nSxe );
+ }
+
+ // nSy and nx is the offset of the first pixel
+ pStm->ReadUInt16( nSy ).ReadUInt16( nSx );
+
+ if( nFunction == W_META_STRETCHDIB || nFunction == W_META_DIBBITBLT || nFunction == W_META_DIBSTRETCHBLT )
+ {
+ if ( nWinROP == PATCOPY )
+ pStm->ReadUInt16( nUsage ); // i don't know anything of this parameter, so it's called nUsage
+ // DrawRect( Rectangle( ReadYX(), aDestSize ), false );
+
+ Size aDestSize( ReadYXExt() );
+ if ( aDestSize.Width() && aDestSize.Height() ) // #92623# do not try to read buggy bitmaps
+ {
+ tools::Rectangle aDestRect( ReadYX(), aDestSize );
+ GetWinExtMax( aDestRect, aBound, nMapMode );
+ bBoundsDetermined = true;
+ }
+ }
+ }
+ break;
+
+ case W_META_PATBLT:
+ {
+ sal_uInt32 nROP;
+ pStm->ReadUInt32( nROP );
+ Size aSize = ReadYXExt();
+ GetWinExtMax( tools::Rectangle( ReadYX(), aSize ), aBound, nMapMode );
+ bBoundsDetermined = true;
+ }
+ break;
+ }
+
+ const auto nAvailableBytes = nEnd - nPos;
+ const auto nMaxPossibleRecordSize = nAvailableBytes/2;
+ if (nRSize <= nMaxPossibleRecordSize)
+ {
+ nPos += nRSize * 2;
+ pStm->Seek(nPos);
+ }
+ else
+ {
+ pStm->SetError( SVSTREAM_FILEFORMAT_ERROR );
+ bRet = false;
+ }
+ }
+ }
+ else
+ {
+ pStm->SetError( SVSTREAM_GENERALERROR );
+ bRet = false;
+ }
+
+ if (!bRet)
+ return;
+
+ if (aWinExt)
+ {
+ rPlaceableBound = tools::Rectangle(aWinOrg, *aWinExt);
+ SAL_INFO("vcl.wmf", "Window dimension "
+ " t: " << rPlaceableBound.Left() << " l: " << rPlaceableBound.Top()
+ << " b: " << rPlaceableBound.Right() << " r: " << rPlaceableBound.Bottom());
+ }
+ else if (aViewportExt)
+ {
+ rPlaceableBound = tools::Rectangle(aViewportOrg, *aViewportExt);
+ SAL_INFO("vcl.wmf", "Viewport dimension "
+ " t: " << rPlaceableBound.Left() << " l: " << rPlaceableBound.Top()
+ << " b: " << rPlaceableBound.Right() << " r: " << rPlaceableBound.Bottom());
+ }
+ else if (bBoundsDetermined)
+ {
+ rPlaceableBound = aBound;
+ SAL_INFO("vcl.wmf", "Determined dimension "
+ " t: " << rPlaceableBound.Left() << " l: " << rPlaceableBound.Top()
+ << " b: " << rPlaceableBound.Right() << " r: " << rPlaceableBound.Bottom());
+ }
+ else
+ {
+ rPlaceableBound.SetLeft( 0 );
+ rPlaceableBound.SetTop( 0 );
+ rPlaceableBound.SetRight( aMaxWidth );
+ rPlaceableBound.SetBottom( aMaxWidth );
+ SAL_INFO("vcl.wmf", "Default dimension "
+ " t: " << rPlaceableBound.Left() << " l: " << rPlaceableBound.Top()
+ << " b: " << rPlaceableBound.Right() << " r: " << rPlaceableBound.Bottom());
+ }
+ }
+
+ WmfReader::WmfReader(SvStream& rStreamWMF, GDIMetaFile& rGDIMetaFile, const WmfExternal* pExternalHeader)
+ : MtfTools(rGDIMetaFile, rStreamWMF)
+ , mnUnitsPerInch(96)
+ , mnRecSize(0)
+ , mpEMFStream()
+ , mnEMFRecCount(0)
+ , mnEMFRec(0)
+ , mnEMFSize(0)
+ , mnSkipActions(0)
+ , mpExternalHeader(pExternalHeader)
+ {
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 14:06:11 +0000