/***************************************************************************** * * parser.cxx - Parser for the Win32 to Win16 metafile converter. * * Date: 8/13/91 * Author: Jeffrey Newman (c-jeffn) * * Copyright 1991 Microsoft Corp *****************************************************************************/ #include "precomp.h" #pragma hdrstop #define EMR_LAST_MF3216_SUPPORTED 97 BOOL bGetNextRecord(PLOCALDC pLocalDC, PENHMETARECORD *pemr) ; // Call table for the translation entry points. PDOFN pdofnDrawingOrders[] = { (PDOFN) NULL, bHandleHeader, // EMR_HEADER 1 bHandlePolyBezier, // EMR_POLYBEZIER 2 bHandlePolygon, // EMR_POLYGON 3 bHandlePolyline, // EMR_POLYLINE 4 bHandlePolyBezierTo, // EMR_POLYBEZIERTO 5 bHandlePolylineTo, // EMR_POLYLINETO 6 bHandlePolyPolyline, // EMR_POLYPOLYLINE 7 bHandlePolyPolygon, // EMR_POLYPOLYGON 8 bHandleSetWindowExt, // EMR_SETWINDOWEXTEX 9 bHandleSetWindowOrg, // EMR_SETWINDOWORGEX 10 bHandleSetViewportExt, // EMR_SETVIEWPORTEXTEX 11 bHandleSetViewportOrg, // EMR_SETVIEWPORTORGEX 12 bHandleNotImplemented, // EMR_SETBRUSHORGEX 13 bHandleEOF, // EMR_EOF 14 bHandleSetPixel, // EMR_SETPIXELV 15 bHandleSetMapperFlags, // EMR_SETMAPPERFLAGS 16 bHandleSetMapMode, // EMR_SETMAPMODE 17 bHandleSetBkMode, // EMR_SETBKMODE 18 bHandleSetPolyFillMode, // EMR_SETPOLYFILLMODE 19 bHandleSetRop2, // EMR_SETROP2 20 bHandleSetStretchBltMode, // EMR_SETSTRETCHBLTMODE 21 bHandleSetTextAlign, // EMR_SETTEXTALIGN 22 bHandleNotImplemented, // EMR_SETCOLORADJUSTMENT 23 bHandleSetTextColor, // EMR_SETTEXTCOLOR 24 bHandleSetBkColor, // EMR_SETBKCOLOR 25 bHandleOffsetClipRgn, // EMR_OFFSETCLIPRGN 26 bHandleMoveTo, // EMR_MOVETOEX 27 bHandleSetMetaRgn, // EMR_SETMETARGN 28 bHandleExcludeClipRect, // EMR_EXCLUDECLIPRECT 29 bHandleIntersectClipRect, // EMR_INTERSECTCLIPRECT 30 bHandleScaleViewportExt, // EMR_SCALEVIEWPORTEXTEX 31 bHandleScaleWindowExt, // EMR_SCALEWINDOWEXTEX 32 bHandleSaveDC, // EMR_SAVEDC 33 bHandleRestoreDC, // EMR_RESTOREDC 34 bHandleSetWorldTransform, // EMR_SETWORLDTRANSFORM 35 bHandleModifyWorldTransform, // EMR_MODIFYWORLDTRANSFORM 36 bHandleSelectObject, // EMR_SELECTOBJECT 37 bHandleCreatePen, // EMR_CREATEPEN 38 bHandleCreateBrushIndirect, // EMR_CREATEBRUSHINDIRECT 39 bHandleDeleteObject, // EMR_DELETEOBJECT 40 bHandleAngleArc, // EMR_ANGLEARC 41 bHandleEllipse, // EMR_ELLIPSE 42 bHandleRectangle, // EMR_RECTANGLE 43 bHandleRoundRect, // EMR_ROUNDRECT 44 bHandleArc, // EMR_ARC 45 bHandleChord, // EMR_CHORD 46 bHandlePie, // EMR_PIE 47 bHandleSelectPalette, // EMR_SELECTPALETTE 48 bHandleCreatePalette, // EMR_CREATEPALETTE 49 bHandleSetPaletteEntries, // EMR_SETPALETTEENTRIES 50 bHandleResizePalette, // EMR_RESIZEPALETTE 51 bHandleRealizePalette, // EMR_REALIZEPALETTE 52 bHandleExtFloodFill, // EMR_EXTFLOODFILL 53 bHandleLineTo, // EMR_LINETO 54 bHandleArcTo, // EMR_ARCTO 55 bHandlePolyDraw, // EMR_POLYDRAW 56 bHandleSetArcDirection, // EMR_SETARCDIRECTION 57 bHandleNotImplemented, // EMR_SETMITERLIMIT 58 bHandleBeginPath, // EMR_BEGINPATH 59 bHandleEndPath, // EMR_ENDPATH 60 bHandleCloseFigure, // EMR_CLOSEFIGURE 61 bHandleFillPath, // EMR_FILLPATH 62 bHandleStrokeAndFillPath, // EMR_STROKEANDFILLPATH 63 bHandleStrokePath, // EMR_STROKEPATH 64 bHandleFlattenPath, // EMR_FLATTENPATH 65 bHandleWidenPath, // EMR_WIDENPATH 66 bHandleSelectClipPath, // EMR_SELECTCLIPPATH 67 bHandleAbortPath, // EMR_ABORTPATH 68 bHandleNotImplemented, // 69 bHandleGdiComment, // EMR_GDICOMMENT 70 bHandleFillRgn, // EMR_FILLRGN 71 bHandleFrameRgn, // EMR_FRAMERGN 72 bHandleInvertRgn, // EMR_INVERTRGN 73 bHandlePaintRgn, // EMR_PAINTRGN 74 bHandleExtSelectClipRgn, // EMR_EXTSELECTCLIPRGN 75 bHandleBitBlt, // EMR_BITBLT 76 bHandleStretchBlt, // EMR_STRETCHBLT 77 bHandleMaskBlt, // EMR_MASKBLT 78 bHandlePlgBlt, // EMR_PLGBLT 79 bHandleSetDIBitsToDevice, // EMR_SETDIBITSTODEVICE 80 bHandleStretchDIBits, // EMR_STRETCHDIBITS 81 bHandleExtCreateFont, // EMR_EXTCREATEFONTINDIRECTW 82 bHandleExtTextOut, // EMR_EXTTEXTOUTA 83 bHandleExtTextOut, // EMR_EXTTEXTOUTW 84 bHandlePoly16, // EMR_POLYBEZIER16 85 bHandlePoly16, // EMR_POLYGON16 86 bHandlePoly16, // EMR_POLYLINE16 87 bHandlePoly16, // EMR_POLYBEZIERTO16 88 bHandlePoly16, // EMR_POLYLINETO16 89 bHandlePolyPoly16, // EMR_POLYPOLYLINE16 90 bHandlePolyPoly16, // EMR_POLYPOLYGON16 91 bHandlePoly16, // EMR_POLYDRAW16 92 bHandleCreateMonoBrush, // EMR_CREATEMONOBRUSH 93 bHandleCreateDIBPatternBrush, // EMR_CREATEDIBPATTERNBRUSHPT 94 bHandleExtCreatePen, // EMR_EXTCREATEPEN 95 bHandlePolyTextOut, // EMR_POLYTEXTOUTA 96 bHandlePolyTextOut, // EMR_POLYTEXTOUTW 97 bHandleNotImplemented, // EMR_SETICMMODE 98 bHandleNotImplemented, // EMR_CREATECOLORSPACE 99 bHandleNotImplemented, // EMR_SETCOLORSPACE 100 bHandleNotImplemented, // EMR_DELETECOLORSPACE 101 bHandleNotImplemented, // EMR_GLSRECORD 102 bHandleNotImplemented, // EMR_GLSBOUNDEDRECORD 103 bHandleNotImplemented, // EMR_PIXELFORMAT 104 bHandleNotImplemented, // 105 bHandleNotImplemented, // 106 bHandleNotImplemented, // 107 bHandleNotImplemented, // 108 bHandleNotImplemented, // 109 bHandleNotImplemented, // 110 bHandleNotImplemented, // EMR_COLORCORRECTPALETTE 111 bHandleNotImplemented, // EMR_ALPHABLEND 112 bHandleNotImplemented, // EMR_ALPHADIBBLEND 113 bHandleNotImplemented, // EMR_TRANSPARENTIMAGE 114 bHandleNotImplemented, // EMR_TRANSPARENTDIBIMAGE 115 bHandleNotImplemented // EMR_GRADIENTFILL 116 } ; #if DBG PSZ pszMfRecords[] = { "NULL RECORD ", "EMR_HEADER ", "EMR_POLYBEZIER ", "EMR_POLYGON ", "EMR_POLYLINE ", "EMR_POLYBEZIERTO ", "EMR_POLYLINETO ", "EMR_POLYPOLYLINE ", "EMR_POLYPOLYGON ", "EMR_SETWINDOWEXTEX ", "EMR_SETWINDOWORGEX ", "EMR_SETVIEWPORTEXTEX ", "EMR_SETVIEWPORTORGEX ", "EMR_SETBRUSHORGEX ", "EMR_EOF ", "EMR_SETPIXELV ", "EMR_SETMAPPERFLAGS ", "EMR_SETMAPMODE ", "EMR_SETBKMODE ", "EMR_SETPOLYFILLMODE ", "EMR_SETROP2 ", "EMR_SETSTRETCHBLTMODE ", "EMR_SETTEXTALIGN ", "EMR_SETCOLORADJUSTMENT ", "EMR_SETTEXTCOLOR ", "EMR_SETBKCOLOR ", "EMR_OFFSETCLIPRGN ", "EMR_MOVETOEX ", "EMR_SETMETARGN ", "EMR_EXCLUDECLIPRECT ", "EMR_INTERSECTCLIPRECT ", "EMR_SCALEVIEWPORTEXTEX ", "EMR_SCALEWINDOWEXTEX ", "EMR_SAVEDC ", "EMR_RESTOREDC ", "EMR_SETWORLDTRANSFORM ", "EMR_MODIFYWORLDTRANSFORM ", "EMR_SELECTOBJECT ", "EMR_CREATEPEN ", "EMR_CREATEBRUSHINDIRECT ", "EMR_DELETEOBJECT ", "EMR_ANGLEARC ", "EMR_ELLIPSE ", "EMR_RECTANGLE ", "EMR_ROUNDRECT ", "EMR_ARC ", "EMR_CHORD ", "EMR_PIE ", "EMR_SELECTPALETTE ", "EMR_CREATEPALETTE ", "EMR_SETPALETTEENTRIES ", "EMR_RESIZEPALETTE ", "EMR_REALIZEPALETTE ", "EMR_EXTFLOODFILL ", "EMR_LINETO ", "EMR_ARCTO ", "EMR_POLYDRAW ", "EMR_SETARCDIRECTION ", "EMR_SETMITERLIMIT ", "EMR_BEGINPATH ", "EMR_ENDPATH ", "EMR_CLOSEFIGURE ", "EMR_FILLPATH ", "EMR_STROKEANDFILLPATH ", "EMR_STROKEPATH ", "EMR_FLATTENPATH ", "EMR_WIDENPATH ", "EMR_SELECTCLIPPATH ", "EMR_ABORTPATH ", "unknown record ", "EMR_GDICOMMENT ", "EMR_FILLRGN ", "EMR_FRAMERGN ", "EMR_INVERTRGN ", "EMR_PAINTRGN ", "EMR_EXTSELECTCLIPRGN ", "EMR_BITBLT ", "EMR_STRETCHBLT ", "EMR_MASKBLT ", "EMR_PLGBLT ", "EMR_SETDIBITSTODEVICE ", "EMR_STRETCHDIBITS ", "EMR_EXTCREATEFONTINDIRECTW", "EMR_EXTTEXTOUTA ", "EMR_EXTTEXTOUTW ", "EMR_POLYBEZIER16 ", "EMR_POLYGON16 ", "EMR_POLYLINE16 ", "EMR_POLYBEZIERTO16 ", "EMR_POLYLINETO16 ", "EMR_POLYPOLYLINE16 ", "EMR_POLYPOLYGON16 ", "EMR_POLYDRAW16 ", "EMR_CREATEMONOBRUSH ", "EMR_CREATEDIBPATTERNBRUSHP", "EMR_EXTCREATEPEN ", "EMR_POLYTEXTOUTA ", "EMR_POLYTEXTOUTW ", "EMR_SETICMMODE ", "EMR_CREATECOLORSPACE ", "EMR_SETCOLORSPACE ", "EMR_DELETECOLORSPACE ", "EMR_GLSRECORD ", "EMR_GLSBOUNDEDRECORD ", "EMR_PIXELFORMAT ", "105 ", "106 ", "107 ", "108 ", "109 ", "110 ", "EMR_COLORCORRECTPALETTE ", "EMR_ALPHABLEND ", "EMR_ALPHADIBBLEND ", "EMR_TRANSPARENTIMAGE ", "EMR_TRANSPARENTDIBIMAGE ", "EMR_GRADIENTFILL " }; #endif /***************************************************************************** * Parse the Win32 metafile. * * The Win32 metafile is represented by the metafile bits pointed to * by pMetafileBits. The metafile bits may be obtained from a memory mapped * file, or from some shared memory (from the clipboard). *****************************************************************************/ BOOL bParseWin32Metafile(PBYTE pMetafileBits, PLOCALDC pLocalDC) { INT iType ; PVOID pVoid ; PENHMETARECORD pemr ; PENHMETAHEADER pMf32Header ; DWORD nFileSize ; BOOL bRet ; INT iRecordCount, iLastError ; bRet = TRUE ; // Get the file length from the header. // Test to make sure the first record is a Win32 Metafile header. pMf32Header = (PENHMETAHEADER) pMetafileBits ; if ( (pMf32Header->iType != EMR_HEADER) || (pMf32Header->dSignature != ENHMETA_SIGNATURE) ) { RIP("MF3216: bParseWin32Metafile, First Record not a Win32 Metafile Header\n") ; return(FALSE) ; } if (!IsValidEnhMetaRecord(pLocalDC->pht, pMf32Header)) { EMFVALFAIL(("MF3216: bParseWin32Metafile, IsValidEnhMetaRecord failed\n")); return(FALSE); } // Record a pointer to the beginning of the Win32 metafile and // it's length incase we need to emit the Win32 metafile as a comment // record(s). pLocalDC->pMf32Bits = (PBYTE) pMf32Header ; pLocalDC->cMf32Bits = pMf32Header->nBytes ; // Get the file size for the parser. nFileSize = pMf32Header->nBytes ; // Initialize pbCurrent, & pbEnd pointers into the // metafile bits. pLocalDC->pbCurrent = pMetafileBits ; pLocalDC->pbEnd = pLocalDC->pbCurrent + nFileSize ; if (pLocalDC->pbEnd < pLocalDC->pbCurrent) { RIP("MF3216: bParseWin32Metafile, pointer arithmetic overflow\n"); return(FALSE); } // Init the record count. iRecordCount = 0 ; // Go through the metafile bits. Handle each record based on // it's type. bGetNextRecord returns TRUE if pemr contains // a pointer to a record. while (bGetNextRecord(pLocalDC, &pemr)) { if (!IsValidEnhMetaRecord(pLocalDC->pht, pemr)) { EMFVALFAIL(("MF3216: bParseWin32Metafile, IsValidEnhMetaRecord failed\n")); bRet = FALSE; break; } iRecordCount++ ; // Set up a convienent point to the record. pVoid = (PVOID) pemr ; // Handle the record based on it's type. iType = (INT) pemr->iType ; // Check if the record type falls within the range of the // call table. Eventually, all the record handlers should // be in the call table. if (iType <= EMR_LAST_MF3216_SUPPORTED) { bRet = pdofnDrawingOrders[iType](pVoid, pLocalDC) ; #if DBG if (bRet == FALSE) { iLastError = GetLastError() ; PUTS1("MF3216: Error on Win32 Metafile record #: %d\n", iRecordCount) ; PUTS1("\tRecord type: %s\n", pszMfRecords[iType]) ; PUTS1("\tLast Error Code: %08.8X\n", iLastError) ; } #endif #if 0 if (bRet == FALSE) break ; #else // In ancient times (i.e., before NT4.0), someone explicitly // removed the code above which exits the loop if the handler // fails. Possibly this was a compatibility fix in which // the app depended on the metafile conversion to continue // even in the event of a failure. // // Unfortunately, this fix also allows the parser to continue // even if the output buffer has run out of space. To // minimize the change, we will explicitly look for this case // and break out of the loop if it happens. (Refer to bEmit() // in emit.c to see where ERROR_BUFFER_OVERFLOW is set). if (pLocalDC->flags & ERR_BUFFER_OVERFLOW) break ; #endif } else { PUTS1("MF3216: bParseWin32Metafile - record not supported: %d\n", iType) ; } } #if 0 // Display some statictics if (bRet == TRUE) { PUTS1("MF3216: %d Win32 Metafile records processed\n", iRecordCount) ; } #endif return(bRet) ; } /***************************************************************************** * Get next record * * This is a support routine for bParseWin32Metafile. * It is assumed that pbCurrent, & pbEnd are initialized * the first time this routine is called. * * It returns TRUE if a valid pointer to record is returned in * pemr. If there are not more records FALSE is returned. *****************************************************************************/ BOOL bGetNextRecord(PLOCALDC pLocalDC, PENHMETARECORD *ppemr) { DWORD nSize ; // Check for the end of buffer. // If this is the end return FALSE and set *ppemr to 0. if (pLocalDC->pbCurrent == pLocalDC->pbEnd) { *ppemr = (PENHMETARECORD) NULL ; return (FALSE) ; } // Well it's not the end of the buffer. // So, return a pointer to this record, update pbCurrent, and // return TRUE ; *ppemr = (PENHMETARECORD) pLocalDC->pbCurrent ; nSize = ((PENHMETARECORD) pLocalDC->pbCurrent)->nSize ; pLocalDC->pbCurrent += nSize ; return(TRUE) ; }