/*
 * Metafile functions
 *
 * Copyright  David W. Metcalfe, 1994
 *            Niels de Carpentier, Albrecht Kleine, Huw Davies 1996
 *
 */

#include <string.h>
#include <fcntl.h>
#include "gdi.h"
#include "bitmap.h"
#include "file.h"
#include "heap.h"
#include "metafile.h"
#include "metafiledrv.h"
#include "stddebug.h"
#include "debug.h"

/******************************************************************
 *         MF_AddHandle
 *
 *    Add a handle to an external handle table and return the index
 */

static int MF_AddHandle(HANDLETABLE16 *ht, WORD htlen, HGDIOBJ16 hobj)
{
    int i;

    for (i = 0; i < htlen; i++)
    {
	if (*(ht->objectHandle + i) == 0)
	{
	    *(ht->objectHandle + i) = hobj;
	    return i;
	}
    }
    return -1;
}


/******************************************************************
 *         MF_AddHandleDC
 *
 * Note: this function assumes that we never delete objects.
 * If we do someday, we'll need to maintain a table to re-use deleted
 * handles.
 */
static int MF_AddHandleDC( DC *dc )
{
    METAFILEDRV_PDEVICE *physDev = (METAFILEDRV_PDEVICE *)dc->physDev;
    physDev->mh->mtNoObjects++;
    return physDev->nextHandle++;
}


/******************************************************************
 *         GetMetafile         GDI.124 By Kenny MacDonald 30 Nov 94
 */

HMETAFILE16 GetMetaFile(LPSTR lpFilename)
{
  HMETAFILE16 hmf;
  METAHEADER *mh;
  HFILE hFile;
  DWORD size;
  
  dprintf_metafile(stddeb,"GetMetaFile: %s\n", lpFilename);

  if (!lpFilename)
    return 0;

  hmf = GlobalAlloc16(GMEM_MOVEABLE, MFHEADERSIZE);
  mh = (METAHEADER *)GlobalLock16(hmf);
  
  if (!mh) {
    GlobalFree16(hmf);
    return 0;
  }
  
  if ((hFile = _lopen(lpFilename, OF_READ)) == HFILE_ERROR) {
    GlobalFree16(hmf);
    return 0;
  }
  
  if (_lread32(hFile, (char *)mh, MFHEADERSIZE) == HFILE_ERROR) {
    GlobalFree16(hmf);
    return 0;
  }
  
  size = mh->mtSize * 2;         /* alloc memory for whole metafile */
  GlobalUnlock16(hmf);
  hmf = GlobalReAlloc16(hmf,size,GMEM_MOVEABLE);
  mh = (METAHEADER *)GlobalLock16(hmf);
  
  if (!mh) {
    GlobalFree16(hmf);
    return 0;
  }
  
  if (_lread32(hFile, (char*)mh + mh->mtHeaderSize * 2, 
	        size - mh->mtHeaderSize * 2) == HFILE_ERROR) {
    GlobalFree16(hmf);
    return 0;
  }
  
  _lclose(hFile);

  if (mh->mtType != 1) {
    GlobalFree16(hmf);
    return 0;
  }
  
  GlobalUnlock16(hmf);
  return hmf;

}


/******************************************************************
 *         CopyMetafile         GDI.151 Niels de Carpentier, April 1996
 */

HMETAFILE16 CopyMetaFile(HMETAFILE16 hSrcMetaFile, LPCSTR lpFilename)
{
    HMETAFILE16 handle = 0;
    METAHEADER *mh;
    METAHEADER *mh2;
    HFILE hFile;
    
    dprintf_metafile(stddeb,"CopyMetaFile: %s\n", lpFilename);
    
    mh = (METAHEADER *)GlobalLock16(hSrcMetaFile);
    
    if (!mh)
      return 0;
    
    if (lpFilename)          /* disk based metafile */
        {
        int i,j;
	hFile = _lcreat(lpFilename, 0);
	j=mh->mtType;
	mh->mtType=1;        /* disk file version stores 1 here */
	i=_lwrite32(hFile, (char *)mh, mh->mtSize * 2) ;
	mh->mtType=j;        /* restore old value  [0 or 1] */	
        _lclose(hFile);
	if (i == -1)
	    return 0;
        }
    else                     /* memory based metafile */
        {
	handle = GlobalAlloc16(GMEM_MOVEABLE,mh->mtSize * 2);
	mh2 = (METAHEADER *)GlobalLock16(handle);
	memcpy(mh2,mh, mh->mtSize * 2);
	GlobalUnlock16(handle);
        }
    
    return handle;
}

/******************************************************************
 *         IsValidMetaFile   (GDI.410)
 *         (This is not exactly what windows does, see "Undoc Win")
 */

BOOL IsValidMetaFile(HMETAFILE16 hmf)
{
    BOOL resu=FALSE;
    METAHEADER *mh = (METAHEADER *)GlobalLock16(hmf);
    if (mh) {
      if (mh->mtType == 1 || mh->mtType == 0) 
        if (mh->mtHeaderSize == MFHEADERSIZE/sizeof(INT16))
          if (mh->mtVersion == MFVERSION)
            resu=TRUE;
      GlobalUnlock16(hmf);
    }
    dprintf_metafile(stddeb,"IsValidMetaFile %x => %d\n",hmf,resu);
    return resu;         
}


#if 0
/******************************************************************
 *         CloseMetafile         GDI.126
 */

HMETAFILE16 CloseMetaFile(HDC hdc)
{
    DC *dc;
    METAHEADER *mh;
    HMETAFILE16 hmf;
    HFILE hFile;
    METAFILEDRV_PDEVICE *physDev;
    
    dprintf_metafile(stddeb,"CloseMetaFile\n");

    if (!(dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC))) return 0;

    physDev = (METAFILEDRV_PDEVICE *)dc->physDev;
    mh = (METAHEADER *)GlobalLock16( physDev->hMetafile );

    /* Construct the end of metafile record - this is documented
     * in SDK Knowledgebase Q99334.
     */

    if (!MF_MetaParam0(dc, META_EOF))
    {
        DeleteDC( hdc );
	return 0;
    }	

    if (mh->mtType == 1)        /* disk based metafile */
    {
        hFile = mh->mtNoParameters;
	mh->mtNoParameters = 0;
        if (_llseek(hFile, 0L, 0) == -1)
        {
            DeleteDC( hdc );
            return 0;
        }
        if (_lwrite32(hFile, (char *)mh, MFHEADERSIZE) == -1)
        {
            DeleteDC( hdc );
            return 0;
        }
        _lclose(hFile);
    }

    hmf = physDev->hMetafile;
    GlobalUnlock16( hmf );
    physDev->hMetafile = 0;  /* So it won't be deleted */
    DeleteDC( hdc );
    return hmf;
}


/******************************************************************
 *         DeleteMetafile         GDI.127
 */

BOOL DeleteMetaFile(HMETAFILE16 hmf)
{
    METAHEADER *mh = (METAHEADER *)GlobalLock16(hmf);

    if (!mh)
	return FALSE;

    GlobalFree16(hmf);
    return TRUE;
}
#endif

/******************************************************************
 *         PlayMetafile         GDI.123
 */

BOOL PlayMetaFile(HDC hdc, HMETAFILE16 hmf)
{
    METAHEADER *mh = (METAHEADER *)GlobalLock16(hmf);
    METARECORD *mr;
    HANDLETABLE16 *ht;
    HGLOBAL16 hHT;
    int offset = 0;
    WORD i;

    dprintf_metafile(stddeb,"PlayMetaFile(%04x %04x)\n",hdc,hmf);
    
    /* create the handle table */
    hHT = GlobalAlloc16(GMEM_MOVEABLE|GMEM_ZEROINIT,
		      sizeof(HANDLETABLE16) * mh->mtNoObjects);
    ht = (HANDLETABLE16 *)GlobalLock16(hHT);

    /* loop through metafile playing records */
    offset = mh->mtHeaderSize * 2;
    while (offset < mh->mtSize * 2)
    {
	mr = (METARECORD *)((char *)mh + offset);
	dprintf_metafile(stddeb,"offset = %04x size = %08lx function = %04x\n",
			 offset,mr->rdSize,mr->rdFunction);
	offset += mr->rdSize * 2;
	PlayMetaFileRecord(hdc, ht, mr, mh->mtNoObjects);
    }

    /* free objects in handle table */
    for(i = 0; i < mh->mtNoObjects; i++)
      if(*(ht->objectHandle + i) != 0)
        DeleteObject(*(ht->objectHandle + i));
    
    /* free handle table */
    GlobalFree16(hHT);

    return TRUE;
}


/******************************************************************
 *         EnumMetafile         GDI.175    
 *                                    Niels de carpentier, april 1996
 */

BOOL EnumMetaFile(HDC hdc, HMETAFILE16 hmf, MFENUMPROC16 lpEnumFunc,LPARAM lpData)
{
    METAHEADER *mh = (METAHEADER *)GlobalLock16(hmf);
    METARECORD *mr;
    HGLOBAL16 hHT;
    SEGPTR ht, spRecord;
    int offset = 0;
  
    dprintf_metafile(stddeb,"EnumMetaFile(%04x, %04x, %08lx, %08lx)\n",
		     hdc, hmf, (DWORD)lpEnumFunc, lpData);
   
    /* create the handle table */
    
    hHT = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT,
		     sizeof(HANDLETABLE16) * mh->mtNoObjects);
    ht = WIN16_GlobalLock16(hHT);
   
    offset = mh->mtHeaderSize * 2;
    
    /* loop through metafile records */
    
    spRecord = WIN16_GlobalLock16(hmf);
    while (offset < (mh->mtSize * 2))
    {
	mr = (METARECORD *)((char *)mh + offset);
        if (!lpEnumFunc( hdc, (HANDLETABLE16 *)ht,
                         (METARECORD *)((UINT32)spRecord + offset),
                         mh->mtNoObjects, (LONG)lpData))
	    break;

	offset += (mr->rdSize * 2);
    }

    /* free handle table */
    GlobalFree16(hHT);

    return TRUE;
}

/*******************************************************************
 *   MF_GetDIBitsPointer    [internal helper for e.g. PlayMetaFileRecord]
 *
 * Returns offset to DIB bits or 0 if error
 * (perhaps should be moved to (objects/dib.c ?)
 */
static LPSTR MF_GetDIBitsPointer(LPBITMAPINFO info)
{
      int offset;
      if (info->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
	{
        if (info->bmiHeader.biClrUsed)
	  {
	  if (info->bmiHeader.biClrUsed < (1 << info->bmiHeader.biBitCount))
	    offset = info->bmiHeader.biClrUsed * 4;
          else
	    offset = (1 << info->bmiHeader.biBitCount) * 4;
          }
        else
	  offset = (1 << info->bmiHeader.biBitCount) * 4;
	}
      else if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
	{
	if (info->bmiHeader.biClrUsed)
	  {
	  if (info->bmiHeader.biClrUsed < (1 << info->bmiHeader.biBitCount))
	    offset = info->bmiHeader.biClrUsed * 3;
          else
	    offset = (1 << info->bmiHeader.biBitCount) * 3;
          }
        else
	  offset = (1 << info->bmiHeader.biBitCount) * 3;
	}
      else
	{
	fprintf(stderr,"Unknown size for BITMAPHEADER in MetaFile!\n");
	return NULL;
	}
      return (LPSTR)info + info->bmiHeader.biSize + offset; 
}


/******************************************************************
 *         PlayMetaFileRecord      GDI.176
 */

void PlayMetaFileRecord(HDC hdc, HANDLETABLE16 *ht, METARECORD *mr,
			                           WORD nHandles)
{
    short s1;
    HANDLE16 hndl;
    char *ptr;
    BITMAPINFOHEADER *infohdr;

    dprintf_metafile(stddeb,"PlayMetaFileRecord(%04x %08lx %08lx %04x)\n",
		     hdc,(LONG)ht, (LONG)mr, nHandles);
    
    switch (mr->rdFunction)
    {
    case META_EOF:
      break;

    case META_DELETEOBJECT:
      DeleteObject(*(ht->objectHandle + *(mr->rdParam)));
      *(ht->objectHandle + *(mr->rdParam)) = 0;
      break;

    case META_SETBKCOLOR:
	SetBkColor(hdc, *(mr->rdParam));
	break;

    case META_SETBKMODE:
	SetBkMode(hdc, *(mr->rdParam));
	break;

    case META_SETMAPMODE:
	SetMapMode(hdc, *(mr->rdParam));
	break;

    case META_SETROP2:
	SetROP2(hdc, *(mr->rdParam));
	break;

    case META_SETRELABS:
	SetRelAbs(hdc, *(mr->rdParam));
	break;

    case META_SETPOLYFILLMODE:
	SetPolyFillMode(hdc, *(mr->rdParam));
	break;

    case META_SETSTRETCHBLTMODE:
	SetStretchBltMode(hdc, *(mr->rdParam));
	break;

    case META_SETTEXTCOLOR:
	SetTextColor(hdc, MAKELONG(*(mr->rdParam), *(mr->rdParam + 1)));
	break;

    case META_SETWINDOWORG:
	SetWindowOrg(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_SETWINDOWEXT:
	SetWindowExt(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_SETVIEWPORTORG:
	SetViewportOrg(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_SETVIEWPORTEXT:
	SetViewportExt(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_OFFSETWINDOWORG:
	OffsetWindowOrg(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_SCALEWINDOWEXT:
	ScaleWindowExt(hdc, *(mr->rdParam + 3), *(mr->rdParam + 2),
		       *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_OFFSETVIEWPORTORG:
	OffsetViewportOrg(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_SCALEVIEWPORTEXT:
	ScaleViewportExt(hdc, *(mr->rdParam + 3), *(mr->rdParam + 2),
			 *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_LINETO:
	LineTo(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_MOVETO:
	MoveTo(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_EXCLUDECLIPRECT:
	ExcludeClipRect(hdc, *(mr->rdParam + 3), *(mr->rdParam + 2),
			*(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_INTERSECTCLIPRECT:
	IntersectClipRect(hdc, *(mr->rdParam + 3), *(mr->rdParam + 2),
			*(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_ARC:
	Arc(hdc, *(mr->rdParam + 7), *(mr->rdParam + 6), *(mr->rdParam + 5),
	    *(mr->rdParam + 4), *(mr->rdParam + 3), *(mr->rdParam + 2),
	    *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_ELLIPSE:
	Ellipse(hdc, *(mr->rdParam + 3), *(mr->rdParam + 2),
		*(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_FLOODFILL:
	FloodFill(hdc, *(mr->rdParam + 3), *(mr->rdParam + 2),
		  MAKELONG(*(mr->rdParam + 1), *(mr->rdParam)));
	break;

    case META_PIE:
	Pie(hdc, *(mr->rdParam + 7), *(mr->rdParam + 6), *(mr->rdParam + 5),
	    *(mr->rdParam + 4), *(mr->rdParam + 3), *(mr->rdParam + 2),
	    *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_RECTANGLE:
	Rectangle(hdc, *(mr->rdParam + 3), *(mr->rdParam + 2),
		*(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_ROUNDRECT:
	RoundRect(hdc, *(mr->rdParam + 5), *(mr->rdParam + 4),
		  *(mr->rdParam + 3), *(mr->rdParam + 2),
		  *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_PATBLT:
	PatBlt(hdc, *(mr->rdParam + 5), *(mr->rdParam + 4),
	       *(mr->rdParam + 3), *(mr->rdParam + 2),
	       MAKELONG(*(mr->rdParam), *(mr->rdParam + 1)));
	break;

    case META_SAVEDC:
	SaveDC(hdc);
	break;

    case META_SETPIXEL:
	SetPixel(hdc, *(mr->rdParam + 3), *(mr->rdParam + 2),
		 MAKELONG(*(mr->rdParam + 1), *(mr->rdParam)));
	break;

    case META_OFFSETCLIPRGN:
	OffsetClipRgn(hdc, *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_TEXTOUT:
	s1 = *(mr->rdParam);
	TextOut16(hdc, *(mr->rdParam + ((s1 + 1) >> 1) + 2),
                  *(mr->rdParam + ((s1 + 1) >> 1) + 1), 
                  (char *)(mr->rdParam + 1), s1);
	break;

    case META_POLYGON:
	Polygon16(hdc, (LPPOINT16)(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_POLYPOLYGON:
      PolyPolygon16(hdc, (LPPOINT16)(mr->rdParam + *(mr->rdParam) + 1),
                    (LPINT16)(mr->rdParam + 1), *(mr->rdParam)); 
      break;

    case META_POLYLINE:
	Polyline16(hdc, (LPPOINT16)(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_RESTOREDC:
	RestoreDC(hdc, *(mr->rdParam));
	break;

    case META_SELECTOBJECT:
	SelectObject(hdc, *(ht->objectHandle + *(mr->rdParam)));
	break;

    case META_CHORD:
	Chord(hdc, *(mr->rdParam + 7), *(mr->rdParam + 6), *(mr->rdParam + 5),
	      *(mr->rdParam + 4), *(mr->rdParam + 3), *(mr->rdParam + 2),
	      *(mr->rdParam + 1), *(mr->rdParam));
	break;

    case META_CREATEPATTERNBRUSH:
	switch (*(mr->rdParam))
	{
	case BS_PATTERN:
	    infohdr = (BITMAPINFOHEADER *)(mr->rdParam + 2);
	    MF_AddHandle(ht, nHandles,
			 CreatePatternBrush(CreateBitmap(infohdr->biWidth, 
				      infohdr->biHeight, 
				      infohdr->biPlanes, 
				      infohdr->biBitCount,
				      (LPSTR)(mr->rdParam + 
				      (sizeof(BITMAPINFOHEADER) / 2) + 4))));
	    break;

	case BS_DIBPATTERN:
	    s1 = mr->rdSize * 2 - sizeof(METARECORD) - 2;
	    hndl = GlobalAlloc16(GMEM_MOVEABLE, s1);
	    ptr = GlobalLock16(hndl);
	    memcpy(ptr, mr->rdParam + 2, s1);
	    GlobalUnlock16(hndl);
	    MF_AddHandle(ht, nHandles,
			 CreateDIBPatternBrush(hndl, *(mr->rdParam + 1)));
	    GlobalFree16(hndl);
	}
	break;
	
    case META_CREATEPENINDIRECT:
	MF_AddHandle(ht, nHandles, 
		     CreatePenIndirect((LOGPEN16 *)(&(mr->rdParam))));
	break;

    case META_CREATEFONTINDIRECT:
	MF_AddHandle(ht, nHandles, 
		     CreateFontIndirect16((LOGFONT16 *)(&(mr->rdParam))));
	break;

    case META_CREATEBRUSHINDIRECT:
	MF_AddHandle(ht, nHandles, 
		     CreateBrushIndirect((LOGBRUSH16 *)(&(mr->rdParam))));
	break;

    /* W. Magro: Some new metafile operations.  Not all debugged. */
    case META_CREATEPALETTE:
	MF_AddHandle(ht, nHandles, 
		     CreatePalette((LPLOGPALETTE)mr->rdParam));
	break;

    case META_SETTEXTALIGN:
       	SetTextAlign(hdc, *(mr->rdParam));
	break;

    case META_SELECTPALETTE:
	SelectPalette(hdc, *(ht->objectHandle + *(mr->rdParam+1)),*(mr->rdParam));
	break;

    case META_SETMAPPERFLAGS:
	SetMapperFlags(hdc, *(mr->rdParam));
	break;

    case META_REALIZEPALETTE:
	RealizePalette(hdc);
	break;

    case META_ESCAPE:
	dprintf_metafile(stddeb,"PlayMetaFileRecord: META_ESCAPE unimplemented.\n");
        break;

        /* --- Begin of fixed or new metafile operations. July 1996 ----*/
    case META_EXTTEXTOUT:
      {
        LPINT16 dxx;
        DWORD len;

        s1 = mr->rdParam[2];                              /* String length */
        len = sizeof(METARECORD) + (((s1 + 1) >> 1) * 2) + 2 * sizeof(short)
         + sizeof(UINT16) + sizeof(RECT16);
        if (mr->rdSize == len / 2)
          dxx = NULL;                                    /* No array present */
        else if (mr->rdSize == (len + s1 * sizeof(INT16)) / 2)
          dxx = &mr->rdParam[8+(s1+1)/2];                /* start of array */
        else {
          fprintf(stderr,
           "PlayMetaFileRecord ExtTextOut mr->rdSize = %08lx, count = %x\n",
           mr->rdSize, s1);
          dxx = NULL;
        }
        ExtTextOut16( hdc, mr->rdParam[1],              /* X position */
	                   mr->rdParam[0],              /* Y position */
	                   mr->rdParam[3],              /* options */
	                   (LPRECT16) &mr->rdParam[4],  /* rectangle */
                           (char *)(mr->rdParam + 8),   /* string */
                           s1, dxx);                    /* length, dx array */
        if (dxx)                      
          dprintf_metafile(stddeb,"EXTTEXTOUT len: %ld  (%hd %hd)  [%s].\n",
            mr->rdSize,dxx[0],dxx[1],(char*) &(mr->rdParam[8]) );
       }
       break;
    
    case META_STRETCHDIB:
      {
       LPBITMAPINFO info = (LPBITMAPINFO) &(mr->rdParam[11]);
       LPSTR bits = MF_GetDIBitsPointer(info);
       if (bits)
        StretchDIBits(hdc,mr->rdParam[10],mr->rdParam[9],mr->rdParam[8],
		    mr->rdParam[7],mr->rdParam[6],mr->rdParam[5],
		    mr->rdParam[4],mr->rdParam[3],bits,info,
		    mr->rdParam[2],MAKELONG(mr->rdParam[0],mr->rdParam[1]));
      }
      break;

    case META_DIBSTRETCHBLT:
      {
       LPBITMAPINFO info = (LPBITMAPINFO) &(mr->rdParam[10]); 
       LPSTR bits = MF_GetDIBitsPointer(info);
       if (bits)
         StretchDIBits(hdc,mr->rdParam[9],mr->rdParam[8],mr->rdParam[7],
		    mr->rdParam[6],mr->rdParam[5],mr->rdParam[4],
		    mr->rdParam[3],mr->rdParam[2],bits,info,
		    DIB_RGB_COLORS,MAKELONG(mr->rdParam[0],mr->rdParam[1]));
      }
      break;		  

    case META_STRETCHBLT:
      {
       HDC hdcSrc=CreateCompatibleDC(hdc);
       HBITMAP16 hbitmap=CreateBitmap(mr->rdParam[10], /*Width */
                                      mr->rdParam[11], /*Height*/
                                      mr->rdParam[13], /*Planes*/
                                      mr->rdParam[14], /*BitsPixel*/
                                      (LPSTR)&mr->rdParam[15]);  /*bits*/
       SelectObject(hdcSrc,hbitmap);
       StretchBlt(hdc,mr->rdParam[9],mr->rdParam[8],
                    mr->rdParam[7],mr->rdParam[6],
		    hdcSrc,mr->rdParam[5],mr->rdParam[4],
		    mr->rdParam[3],mr->rdParam[2],
		    MAKELONG(mr->rdParam[0],mr->rdParam[1]));
       DeleteDC(hdcSrc);		    
      }
      break;

    case META_BITBLT:            /* <-- not yet debugged */
      {
       HDC hdcSrc=CreateCompatibleDC(hdc);
       HBITMAP16 hbitmap=CreateBitmap(mr->rdParam[7]/*Width */,mr->rdParam[8]/*Height*/,
                            mr->rdParam[10]/*Planes*/,mr->rdParam[11]/*BitsPixel*/,
                            (LPSTR)&mr->rdParam[12]/*bits*/);
       SelectObject(hdcSrc,hbitmap);
       BitBlt(hdc,mr->rdParam[6],mr->rdParam[5],
                    mr->rdParam[4],mr->rdParam[3],
		    hdcSrc,
		    mr->rdParam[2],mr->rdParam[1],
		    MAKELONG(0,mr->rdParam[0]));
       DeleteDC(hdcSrc);		    
      }
      break;

    default:
	fprintf(stddeb,"PlayMetaFileRecord: Unknown record type %x\n",
	                                      mr->rdFunction);
    }
}


/******************************************************************
 *         GetMetaFileBits		by William Magro, 19 Sep 1995
 *
 * Trade in a meta file object handle for a handle to the meta file memory
 */

HGLOBAL16 GetMetaFileBits(HMETAFILE16 hmf)
{
    dprintf_metafile(stddeb,"GetMetaFileBits: hMem out: %04x\n", hmf);

    return hmf;
}

/******************************************************************
 *         SetMetaFileBits		by William Magro, 19 Sep 1995
 *
 * Trade in a meta file memory handle for a handle to a meta file object
 */

HMETAFILE16 SetMetaFileBits( HGLOBAL16 hMem )
{
    dprintf_metafile(stddeb,"SetMetaFileBits: hmf out: %04x\n", hMem);

    return hMem;
}

/******************************************************************
 *         MF_WriteRecord
 *
 * Warning: this function can change the metafile handle.
 */

static BOOL32 MF_WriteRecord( DC *dc, METARECORD *mr, WORD rlen)
{
    DWORD len;
    METAHEADER *mh;
    METAFILEDRV_PDEVICE *physDev = (METAFILEDRV_PDEVICE *)dc->physDev;

    switch(physDev->mh->mtType)
    {
    case METAFILE_MEMORY:
	len = physDev->mh->mtSize * 2 + rlen;
	mh = HeapReAlloc( SystemHeap, 0, physDev->mh, len );
        if (!mh) return FALSE;
        physDev->mh = mh;
	memcpy((WORD *)physDev->mh + physDev->mh->mtSize, mr, rlen);
        break;
    case METAFILE_DISK:
        dprintf_metafile(stddeb,"Writing record to disk\n");
	if (_lwrite32(physDev->mh->mtNoParameters, (char *)mr, rlen) == -1)
	    return FALSE;
        break;
    default:
        fprintf( stderr, "Uknown metafile type %d\n", physDev->mh->mtType );
        return FALSE;
    }

    physDev->mh->mtSize += rlen / 2;
    physDev->mh->mtMaxRecord = MAX(physDev->mh->mtMaxRecord, rlen / 2);
    return TRUE;
}


/******************************************************************
 *         MF_MetaParam0
 */

BOOL32 MF_MetaParam0(DC *dc, short func)
{
    char buffer[8];
    METARECORD *mr = (METARECORD *)&buffer;
    
    mr->rdSize = 3;
    mr->rdFunction = func;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_MetaParam1
 */
BOOL32 MF_MetaParam1(DC *dc, short func, short param1)
{
    char buffer[8];
    METARECORD *mr = (METARECORD *)&buffer;
    
    mr->rdSize = 4;
    mr->rdFunction = func;
    *(mr->rdParam) = param1;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_MetaParam2
 */
BOOL32 MF_MetaParam2(DC *dc, short func, short param1, short param2)
{
    char buffer[10];
    METARECORD *mr = (METARECORD *)&buffer;
    
    mr->rdSize = 5;
    mr->rdFunction = func;
    *(mr->rdParam) = param2;
    *(mr->rdParam + 1) = param1;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_MetaParam4
 */

BOOL32 MF_MetaParam4(DC *dc, short func, short param1, short param2, 
		   short param3, short param4)
{
    char buffer[14];
    METARECORD *mr = (METARECORD *)&buffer;
    
    mr->rdSize = 7;
    mr->rdFunction = func;
    *(mr->rdParam) = param4;
    *(mr->rdParam + 1) = param3;
    *(mr->rdParam + 2) = param2;
    *(mr->rdParam + 3) = param1;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_MetaParam6
 */

BOOL32 MF_MetaParam6(DC *dc, short func, short param1, short param2, 
		   short param3, short param4, short param5, short param6)
{
    char buffer[18];
    METARECORD *mr = (METARECORD *)&buffer;
    
    mr->rdSize = 9;
    mr->rdFunction = func;
    *(mr->rdParam) = param6;
    *(mr->rdParam + 1) = param5;
    *(mr->rdParam + 2) = param4;
    *(mr->rdParam + 3) = param3;
    *(mr->rdParam + 4) = param2;
    *(mr->rdParam + 5) = param1;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_MetaParam8
 */
BOOL32 MF_MetaParam8(DC *dc, short func, short param1, short param2, 
		   short param3, short param4, short param5,
		   short param6, short param7, short param8)
{
    char buffer[22];
    METARECORD *mr = (METARECORD *)&buffer;
    
    mr->rdSize = 11;
    mr->rdFunction = func;
    *(mr->rdParam) = param8;
    *(mr->rdParam + 1) = param7;
    *(mr->rdParam + 2) = param6;
    *(mr->rdParam + 3) = param5;
    *(mr->rdParam + 4) = param4;
    *(mr->rdParam + 5) = param3;
    *(mr->rdParam + 6) = param2;
    *(mr->rdParam + 7) = param1;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_CreateBrushIndirect
 */

BOOL32 MF_CreateBrushIndirect(DC *dc, HBRUSH16 hBrush, LOGBRUSH16 *logbrush)
{
    int index;
    char buffer[sizeof(METARECORD) - 2 + sizeof(LOGBRUSH16)];
    METARECORD *mr = (METARECORD *)&buffer;

    mr->rdSize = (sizeof(METARECORD) + sizeof(LOGBRUSH16) - 2) / 2;
    mr->rdFunction = META_CREATEBRUSHINDIRECT;
    memcpy(&(mr->rdParam), logbrush, sizeof(LOGBRUSH16));
    if (!(MF_WriteRecord( dc, mr, mr->rdSize * 2))) return FALSE;

    mr->rdSize = sizeof(METARECORD) / 2;
    mr->rdFunction = META_SELECTOBJECT;

    if ((index = MF_AddHandleDC( dc )) == -1) return FALSE;
    *(mr->rdParam) = index;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_CreatePatternBrush
 */

BOOL32 MF_CreatePatternBrush(DC *dc, HBRUSH16 hBrush, LOGBRUSH16 *logbrush)
{
    DWORD len, bmSize, biSize;
    HGLOBAL16 hmr;
    METARECORD *mr;
    BITMAPOBJ *bmp;
    BITMAPINFO *info;
    BITMAPINFOHEADER *infohdr;
    int index;
    char buffer[sizeof(METARECORD)];

    switch (logbrush->lbStyle)
    {
    case BS_PATTERN:
	bmp = (BITMAPOBJ *)GDI_GetObjPtr((HGDIOBJ16)logbrush->lbHatch, BITMAP_MAGIC);
	if (!bmp) return FALSE;
	len = sizeof(METARECORD) + sizeof(BITMAPINFOHEADER) + 
	      (bmp->bitmap.bmHeight * bmp->bitmap.bmWidthBytes) + 6;
	if (!(hmr = GlobalAlloc16(GMEM_MOVEABLE, len)))
	    return FALSE;
	mr = (METARECORD *)GlobalLock16(hmr);
	memset(mr, 0, len);
	mr->rdFunction = META_DIBCREATEPATTERNBRUSH;
	mr->rdSize = len / 2;
	*(mr->rdParam) = logbrush->lbStyle;
	*(mr->rdParam + 1) = DIB_RGB_COLORS;
	infohdr = (BITMAPINFOHEADER *)(mr->rdParam + 2);
	infohdr->biSize = sizeof(BITMAPINFOHEADER);
	infohdr->biWidth = bmp->bitmap.bmWidth;
	infohdr->biHeight = bmp->bitmap.bmHeight;
	infohdr->biPlanes = bmp->bitmap.bmPlanes;
	infohdr->biBitCount = bmp->bitmap.bmBitsPixel;
	memcpy(mr->rdParam + (sizeof(BITMAPINFOHEADER) / 2) + 4,
	       PTR_SEG_TO_LIN(bmp->bitmap.bmBits),
	       bmp->bitmap.bmHeight * bmp->bitmap.bmWidthBytes);
	break;

    case BS_DIBPATTERN:
	info = (BITMAPINFO *)GlobalLock16((HGLOBAL16)logbrush->lbHatch);
	if (info->bmiHeader.biCompression)
            bmSize = info->bmiHeader.biSizeImage;
        else
	    bmSize = (info->bmiHeader.biWidth * info->bmiHeader.biBitCount 
		    + 31) / 32 * 8 * info->bmiHeader.biHeight;
	biSize = DIB_BitmapInfoSize(info, LOWORD(logbrush->lbColor)); 
	len = sizeof(METARECORD) + biSize + bmSize + 2;
	if (!(hmr = GlobalAlloc16(GMEM_MOVEABLE, len)))
	    return FALSE;
	mr = (METARECORD *)GlobalLock16(hmr);
	memset(mr, 0, len);
	mr->rdFunction = META_DIBCREATEPATTERNBRUSH;
	mr->rdSize = len / 2;
	*(mr->rdParam) = logbrush->lbStyle;
	*(mr->rdParam + 1) = LOWORD(logbrush->lbColor);
	memcpy(mr->rdParam + 2, info, biSize + bmSize);
	break;
    default:
        return FALSE;
    }
    if (!(MF_WriteRecord(dc, mr, len)))
    {
	GlobalFree16(hmr);
	return FALSE;
    }

    GlobalFree16(hmr);
    
    mr = (METARECORD *)&buffer;
    mr->rdSize = sizeof(METARECORD) / 2;
    mr->rdFunction = META_SELECTOBJECT;

    if ((index = MF_AddHandleDC( dc )) == -1) return FALSE;
    *(mr->rdParam) = index;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_CreatePenIndirect
 */

BOOL32 MF_CreatePenIndirect(DC *dc, HPEN16 hPen, LOGPEN16 *logpen)
{
    int index;
    char buffer[sizeof(METARECORD) - 2 + sizeof(LOGPEN16)];
    METARECORD *mr = (METARECORD *)&buffer;

    mr->rdSize = (sizeof(METARECORD) + sizeof(LOGPEN16) - 2) / 2;
    mr->rdFunction = META_CREATEPENINDIRECT;
    memcpy(&(mr->rdParam), logpen, sizeof(LOGPEN16));
    if (!(MF_WriteRecord( dc, mr, mr->rdSize * 2))) return FALSE;

    mr->rdSize = sizeof(METARECORD) / 2;
    mr->rdFunction = META_SELECTOBJECT;

    if ((index = MF_AddHandleDC( dc )) == -1) return FALSE;
    *(mr->rdParam) = index;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_CreateFontIndirect
 */

BOOL32 MF_CreateFontIndirect(DC *dc, HFONT16 hFont, LOGFONT16 *logfont)
{
    int index;
    char buffer[sizeof(METARECORD) - 2 + sizeof(LOGFONT16)];
    METARECORD *mr = (METARECORD *)&buffer;

    mr->rdSize = (sizeof(METARECORD) + sizeof(LOGFONT16) - 2) / 2;
    mr->rdFunction = META_CREATEFONTINDIRECT;
    memcpy(&(mr->rdParam), logfont, sizeof(LOGFONT16));
    if (!(MF_WriteRecord( dc, mr, mr->rdSize * 2))) return FALSE;

    mr->rdSize = sizeof(METARECORD) / 2;
    mr->rdFunction = META_SELECTOBJECT;

    if ((index = MF_AddHandleDC( dc )) == -1) return FALSE;
    *(mr->rdParam) = index;
    return MF_WriteRecord( dc, mr, mr->rdSize * 2);
}


/******************************************************************
 *         MF_TextOut
 */
BOOL32 MF_TextOut(DC *dc, short x, short y, LPCSTR str, short count)
{
    BOOL32 ret;
    DWORD len;
    HGLOBAL16 hmr;
    METARECORD *mr;

    len = sizeof(METARECORD) + (((count + 1) >> 1) * 2) + 4;
    if (!(hmr = GlobalAlloc16(GMEM_MOVEABLE, len)))
	return FALSE;
    mr = (METARECORD *)GlobalLock16(hmr);
    memset(mr, 0, len);

    mr->rdSize = len / 2;
    mr->rdFunction = META_TEXTOUT;
    *(mr->rdParam) = count;
    memcpy(mr->rdParam + 1, str, count);
    *(mr->rdParam + ((count + 1) >> 1) + 1) = y;
    *(mr->rdParam + ((count + 1) >> 1) + 2) = x;
    ret = MF_WriteRecord( dc, mr, mr->rdSize * 2);
    GlobalFree16(hmr);
    return ret;
}

/******************************************************************
 *         MF_ExtTextOut
 */
BOOL32 MF_ExtTextOut(DC*dc, short x, short y, UINT16 flags, const RECT16 *rect,
                     LPCSTR str, short count, const INT16 *lpDx)
{
    BOOL32 ret;
    DWORD len;
    HGLOBAL16 hmr;
    METARECORD *mr;

    len = sizeof(METARECORD) + (((count + 1) >> 1) * 2) + 2 * sizeof(short)
	    + sizeof(UINT16) + sizeof(RECT16);
    if (lpDx)
     len+=count*sizeof(INT16);
    if (!(hmr = GlobalAlloc16(GMEM_MOVEABLE, len)))
	return FALSE;
    mr = (METARECORD *)GlobalLock16(hmr);
    memset(mr, 0, len);

    mr->rdSize = len / 2;
    mr->rdFunction = META_EXTTEXTOUT;
    *(mr->rdParam) = y;
    *(mr->rdParam + 1) = x;
    *(mr->rdParam + 2) = count;
    *(mr->rdParam + 3) = flags;
    if (rect) memcpy(mr->rdParam + 4, rect, sizeof(RECT16));
    memcpy(mr->rdParam + 8, str, count);
    if (lpDx)
     memcpy(mr->rdParam + 8+ ((count + 1) >> 1),lpDx,count*sizeof(INT16));
    ret = MF_WriteRecord( dc, mr, mr->rdSize * 2);
    GlobalFree16(hmr);
    return ret;
}

/******************************************************************
 *         MF_MetaPoly - implements Polygon and Polyline
 */
BOOL32 MF_MetaPoly(DC *dc, short func, LPPOINT16 pt, short count)
{
    BOOL32 ret;
    DWORD len;
    HGLOBAL16 hmr;
    METARECORD *mr;

    len = sizeof(METARECORD) + (count * 4); 
    if (!(hmr = GlobalAlloc16(GMEM_MOVEABLE, len)))
	return FALSE;
    mr = (METARECORD *)GlobalLock16(hmr);
    memset(mr, 0, len);

    mr->rdSize = len / 2;
    mr->rdFunction = func;
    *(mr->rdParam) = count;
    memcpy(mr->rdParam + 1, pt, count * 4);
    ret = MF_WriteRecord( dc, mr, mr->rdSize * 2);
    GlobalFree16(hmr);
    return ret;
}


/******************************************************************
 *         MF_BitBlt
 */
BOOL32 MF_BitBlt(DC *dcDest, short xDest, short yDest, short width,
                 short height, HDC16 hdcSrc, short xSrc, short ySrc, DWORD rop)
{
    BOOL32 ret;
    DWORD len;
    HGLOBAL16 hmr;
    METARECORD *mr;
    DC *dcSrc;
    BITMAP16  BM;

    if (!(dcSrc = (DC *) GDI_GetObjPtr( hdcSrc, DC_MAGIC ))) return 0;
    GetObject16(dcSrc->w.hBitmap, sizeof(BITMAP16), &BM);
    len = sizeof(METARECORD) + 12 * sizeof(INT16) + BM.bmWidthBytes * BM.bmHeight;
    if (!(hmr = GlobalAlloc16(GMEM_MOVEABLE, len)))
	return FALSE;
    mr = (METARECORD *)GlobalLock16(hmr);
    mr->rdFunction = META_BITBLT;
    *(mr->rdParam + 7) = BM.bmWidth;
    *(mr->rdParam + 8) = BM.bmHeight;
    *(mr->rdParam + 9) = BM.bmWidthBytes;
    *(mr->rdParam +10) = BM.bmPlanes;
    *(mr->rdParam +11) = BM.bmBitsPixel;
    dprintf_metafile(stddeb,"MF_StretchBlt->len = %ld  rop=%lx  \n",len,rop);
    if (GetBitmapBits(dcSrc->w.hBitmap,BM.bmWidthBytes * BM.bmHeight,mr->rdParam +12))
    {
      mr->rdSize = len / sizeof(INT16);
      *(mr->rdParam) = HIWORD(rop);
      *(mr->rdParam + 1) = ySrc;
      *(mr->rdParam + 2) = xSrc;
      *(mr->rdParam + 3) = height;
      *(mr->rdParam + 4) = width;
      *(mr->rdParam + 5) = yDest;
      *(mr->rdParam + 6) = xDest;
      ret = MF_WriteRecord( dcDest, mr, mr->rdSize * 2);
    }  
    else
        ret = FALSE;
    GlobalFree16(hmr);
    return ret;
}


/**********************************************************************
 *         MF_StretchBlt         
 * this function contains TWO ways for procesing StretchBlt in metafiles,
 * decide between rdFunction values  META_STRETCHBLT or META_DIBSTRETCHBLT
 * via #define STRETCH_VIA_DIB
 */
#define STRETCH_VIA_DIB
#undef  STRETCH_VIA_DIB
BOOL32 MF_StretchBlt(DC *dcDest, short xDest, short yDest, short widthDest,
                     short heightDest, HDC16 hdcSrc, short xSrc, short ySrc, 
                     short widthSrc, short heightSrc, DWORD rop)
{
    BOOL32 ret;
    DWORD len;
    HGLOBAL16 hmr;
    METARECORD *mr;
    DC *dcSrc;
    BITMAP16  BM;
#ifdef STRETCH_VIA_DIB    
    LPBITMAPINFOHEADER lpBMI;
    WORD nBPP;
#endif  
    if (!(dcSrc = (DC *) GDI_GetObjPtr( hdcSrc, DC_MAGIC ))) return 0;
    GetObject16(dcSrc->w.hBitmap, sizeof(BITMAP16), &BM);
#ifdef STRETCH_VIA_DIB
    nBPP = BM.bmPlanes * BM.bmBitsPixel;
    len = sizeof(METARECORD) + 10 * sizeof(INT16) 
            + sizeof(BITMAPINFOHEADER) + (nBPP != 24 ? 1 << nBPP: 0) * sizeof(RGBQUAD) 
              + ((BM.bmWidth * nBPP + 31) / 32) * 4 * BM.bmHeight;
    if (!(hmr = GlobalAlloc16(GMEM_MOVEABLE, len)))
	return FALSE;
    mr = (METARECORD *)GlobalLock16(hmr);
    mr->rdFunction = META_DIBSTRETCHBLT;
    lpBMI=(LPBITMAPINFOHEADER)(mr->rdParam+10);
    lpBMI->biSize      = sizeof(BITMAPINFOHEADER);
    lpBMI->biWidth     = BM.bmWidth;
    lpBMI->biHeight    = BM.bmHeight;
    lpBMI->biPlanes    = 1;
    lpBMI->biBitCount  = nBPP;                              /* 1,4,8 or 24 */
    lpBMI->biClrUsed   = nBPP != 24 ? 1 << nBPP : 0;
    lpBMI->biSizeImage = ((lpBMI->biWidth * nBPP + 31) / 32) * 4 * lpBMI->biHeight;
    lpBMI->biCompression = BI_RGB;
    lpBMI->biXPelsPerMeter = MulDiv32(GetDeviceCaps(hdcSrc,LOGPIXELSX),3937,100);
    lpBMI->biYPelsPerMeter = MulDiv32(GetDeviceCaps(hdcSrc,LOGPIXELSY),3937,100);
    lpBMI->biClrImportant  = 0;                          /* 1 meter  = 39.37 inch */

    dprintf_metafile(stddeb,"MF_StretchBltViaDIB->len = %ld  rop=%lx  PixYPM=%ld Caps=%d\n",
               len,rop,lpBMI->biYPelsPerMeter,GetDeviceCaps(hdcSrc,LOGPIXELSY));
    if (GetDIBits(hdcSrc,dcSrc->w.hBitmap,0,(UINT)lpBMI->biHeight,
              MF_GetDIBitsPointer((LPBITMAPINFO)lpBMI),    /* DIB bits */
              (LPBITMAPINFO)lpBMI,DIB_RGB_COLORS))         /* DIB info structure */ 
#else
    len = sizeof(METARECORD) + 15 * sizeof(INT16) + BM.bmWidthBytes * BM.bmHeight;
    if (!(hmr = GlobalAlloc16(GMEM_MOVEABLE, len)))
	return FALSE;
    mr = (METARECORD *)GlobalLock16(hmr);
    mr->rdFunction = META_STRETCHBLT;
    *(mr->rdParam +10) = BM.bmWidth;
    *(mr->rdParam +11) = BM.bmHeight;
    *(mr->rdParam +12) = BM.bmWidthBytes;
    *(mr->rdParam +13) = BM.bmPlanes;
    *(mr->rdParam +14) = BM.bmBitsPixel;
    dprintf_metafile(stddeb,"MF_StretchBlt->len = %ld  rop=%lx  \n",len,rop);
    if (GetBitmapBits(dcSrc->w.hBitmap,BM.bmWidthBytes * BM.bmHeight,mr->rdParam +15))
#endif    
    {
      mr->rdSize = len / sizeof(INT16);
      *(mr->rdParam) = LOWORD(rop);
      *(mr->rdParam + 1) = HIWORD(rop);
      *(mr->rdParam + 2) = heightSrc;
      *(mr->rdParam + 3) = widthSrc;
      *(mr->rdParam + 4) = ySrc;
      *(mr->rdParam + 5) = xSrc;
      *(mr->rdParam + 6) = heightDest;
      *(mr->rdParam + 7) = widthDest;
      *(mr->rdParam + 8) = yDest;
      *(mr->rdParam + 9) = xDest;
      ret = MF_WriteRecord( dcDest, mr, mr->rdSize * 2);
    }  
    else
        ret = FALSE;
    GlobalFree16(hmr);
    return ret;
}