From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:51:28 +0200 Subject: Adding upstream version 1:7.0.4. Signed-off-by: Daniel Baumann --- emfio/source/reader/wmfreader.cxx | 1871 +++++++++++++++++++++++++++++++++++++ 1 file changed, 1871 insertions(+) create mode 100644 emfio/source/reader/wmfreader.cxx (limited to 'emfio/source/reader/wmfreader.cxx') diff --git a/emfio/source/reader/wmfreader.cxx b/emfio/source/reader/wmfreader.cxx new file mode 100644 index 000000000..aa1c2be7a --- /dev/null +++ b/emfio/source/reader/wmfreader.cxx @@ -0,0 +1,1871 @@ +/* -*- 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 +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +// 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(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(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(nXNum) / nXDenom, static_cast(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(nXNum) / nXDenom, static_cast(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 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 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, , 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 aChars(nStoredLength); + nLength = std::min(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, + 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 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 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( nRed / nCount ), static_cast( nGreen / nCount ), static_cast( nBlue / nCount ) ); + CreateObject(std::make_unique( 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( COL_WHITE, false )); + } + break; + + case W_META_CREATEPATTERNBRUSH: + { + CreateObject(std::make_unique( 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( ReadColor(), aLineInfo, bTransparent )); + } + break; + + case W_META_CREATEBRUSHINDIRECT: + { + sal_uInt16 nStyle = 0; + mpInputStream->ReadUInt16( nStyle ); + CreateObject(std::make_unique( 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( 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(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 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 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(nLen + 10) <= static_cast(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(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 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(mpExternalHeader->xExt) * 567 * mnUnitsPerInch / 1440000, + static_cast(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(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 pEMFReader(std::make_unique( *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 aWinExt; + + Point aViewportOrg(0,0); + std::optional 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: */ -- cgit v1.2.3