/*		DirectDraw using DGA or Xlib(XSHM)
 *
 * Copyright 1997,1998 Marcus Meissner
 */
/* XF86DGA:
 * When DirectVideo mode is enabled you can no longer use 'normal' X 
 * applications nor can you switch to a virtual console. Also, enabling
 * only works, if you have switched to the screen where the application
 * is running.
 * Some ways to debug this stuff are:
 * - A terminal connected to the serial port. Can be bought used for cheap.
 *   (This is the method I am using.)
 * - Another machine connected over some kind of network.
 */

#include "config.h"
#include <unistd.h>
#include <assert.h>
#include "ts_xlib.h"
#include <sys/signal.h>
#include <fcntl.h>
#include <string.h>

#include "windows.h"
#include "winerror.h"
#include "interfaces.h"
#include "gdi.h"
#include "heap.h"
#include "ldt.h"
#include "dc.h"
#include "win.h"
#include "miscemu.h"
#include "ddraw.h"
#include "d3d.h"
#include "debug.h"
#include "compobj.h"
#include "spy.h"
#include "message.h"
#include "x11drv.h"
#include "options.h"

#ifdef HAVE_LIBXXF86DGA
#include "ts_xf86dga.h"
#endif

#ifdef HAVE_LIBXXSHM
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include "ts_xshm.h"
#endif

/* define this if you want to play Diablo using XF86DGA. (bug workaround) */
#undef DIABLO_HACK

/* Restore signal handlers overwritten by XF86DGA 
 * this is a define, for it will only work in emulator mode
 */
#undef RESTORE_SIGNALS

/* Where do these GUIDs come from?  mkuuid.
 * They exist solely to distinguish between the targets Wine support,
 * and should be different than any other GUIDs in existence.
 */
static GUID DGA_DirectDraw_GUID = { /* e2dcb020-dc60-11d1-8407-9714f5d50802 */
	0xe2dcb020,
	0xdc60,
	0x11d1,
	{0x84, 0x07, 0x97, 0x14, 0xf5, 0xd5, 0x08, 0x02}
};

static GUID XLIB_DirectDraw_GUID = { /* 1574a740-dc61-11d1-8407-f7875a7d1879 */
    0x1574a740,
    0xdc61,
    0x11d1,
    {0x84, 0x07, 0xf7, 0x87, 0x5a, 0x7d, 0x18, 0x79}
};

static struct IDirectDrawSurface3_VTable	dga_dds3vt, xlib_dds3vt;
static struct IDirectDraw_VTable		dga_ddvt, xlib_ddvt;
static struct IDirectDraw2_VTable		dga_dd2vt, xlib_dd2vt;
static struct IDirectDrawClipper_VTable	ddclipvt;
static struct IDirectDrawPalette_VTable dga_ddpalvt, xlib_ddpalvt;
static struct IDirect3D_VTable			d3dvt;
static struct IDirect3D2_VTable			d3d2vt;

BOOL32
DDRAW_DGA_Available()
{
#ifdef HAVE_LIBXXF86DGA
	int evbase, evret, fd;
	
   	if (Options.noDGA)
     	  return 0;
   
	/* You don't have to be root to use DGA extensions. Simply having access to /dev/mem will do the trick */
        /* This can be achieved by adding the user to the "kmem" group on Debian 2.x systems, don't know about */
        /* others. --stephenc */
        if ((fd = open("/dev/mem", O_RDWR)) != -1)
          close(fd);

	return (fd != -1) && TSXF86DGAQueryExtension(display,&evbase,&evret);
#else /* defined(HAVE_LIBXXF86DGA) */
	return 0;
#endif /* defined(HAVE_LIBXXF86DGA) */
}

HRESULT WINAPI
DirectDrawEnumerate32A(LPDDENUMCALLBACK32A ddenumproc,LPVOID data) {
	if (DDRAW_DGA_Available()) {
		ddenumproc(&DGA_DirectDraw_GUID,"WINE with XFree86 DGA","display",data);
	}
	ddenumproc(&XLIB_DirectDraw_GUID,"WINE with Xlib","display",data);
	ddenumproc(NULL,"WINE","display",data);
	return 0;
}

/* What is this doing here? */
HRESULT WINAPI 
DSoundHelp(DWORD x,DWORD y,DWORD z) {
	FIXME(ddraw,"(0x%08lx,0x%08lx,0x%08lx),stub!\n",x,y,z);
	return 0;
}


/******************************************************************************
 *		internal helper functions
 */
static void _dump_DDBLTFX(DWORD flagmask) {
	int	i;
	const struct {
		DWORD	mask;
		char	*name;
	} flags[] = {
#define FE(x) { x, #x},
		FE(DDBLTFX_ARITHSTRETCHY)
		FE(DDBLTFX_MIRRORLEFTRIGHT)
		FE(DDBLTFX_MIRRORUPDOWN)
		FE(DDBLTFX_NOTEARING)
		FE(DDBLTFX_ROTATE180)
		FE(DDBLTFX_ROTATE270)
		FE(DDBLTFX_ROTATE90)
		FE(DDBLTFX_ZBUFFERRANGE)
		FE(DDBLTFX_ZBUFFERBASEDEST)
	};
	for (i=0;i<sizeof(flags)/sizeof(flags[0]);i++)
	   if (flags[i].mask & flagmask) {
	      DUMP("%s ",flags[i].name);
	      
	   };
	DUMP("\n");
	
}

static void _dump_DDBLTFAST(DWORD flagmask) {
	int	i;
	const struct {
		DWORD	mask;
		char	*name;
	} flags[] = {
#define FE(x) { x, #x},
		FE(DDBLTFAST_NOCOLORKEY)
		FE(DDBLTFAST_SRCCOLORKEY)
		FE(DDBLTFAST_DESTCOLORKEY)
		FE(DDBLTFAST_WAIT)
	};
	for (i=0;i<sizeof(flags)/sizeof(flags[0]);i++)
		if (flags[i].mask & flagmask)
			DUMP("%s ",flags[i].name);
	DUMP("\n");
}

static void _dump_DDBLT(DWORD flagmask) {
	int	i;
	const struct {
		DWORD	mask;
		char	*name;
	} flags[] = {
#define FE(x) { x, #x},
		FE(DDBLT_ALPHADEST)
		FE(DDBLT_ALPHADESTCONSTOVERRIDE)
		FE(DDBLT_ALPHADESTNEG)
		FE(DDBLT_ALPHADESTSURFACEOVERRIDE)
		FE(DDBLT_ALPHAEDGEBLEND)
		FE(DDBLT_ALPHASRC)
		FE(DDBLT_ALPHASRCCONSTOVERRIDE)
		FE(DDBLT_ALPHASRCNEG)
		FE(DDBLT_ALPHASRCSURFACEOVERRIDE)
		FE(DDBLT_ASYNC)
		FE(DDBLT_COLORFILL)
		FE(DDBLT_DDFX)
		FE(DDBLT_DDROPS)
		FE(DDBLT_KEYDEST)
		FE(DDBLT_KEYDESTOVERRIDE)
		FE(DDBLT_KEYSRC)
		FE(DDBLT_KEYSRCOVERRIDE)
		FE(DDBLT_ROP)
		FE(DDBLT_ROTATIONANGLE)
		FE(DDBLT_ZBUFFER)
		FE(DDBLT_ZBUFFERDESTCONSTOVERRIDE)
		FE(DDBLT_ZBUFFERDESTOVERRIDE)
		FE(DDBLT_ZBUFFERSRCCONSTOVERRIDE)
		FE(DDBLT_ZBUFFERSRCOVERRIDE)
		FE(DDBLT_WAIT)
		FE(DDBLT_DEPTHFILL)
	};
	for (i=0;i<sizeof(flags)/sizeof(flags[0]);i++)
		if (flags[i].mask & flagmask)
			DUMP("%s ",flags[i].name);
}

static void _dump_DDSCAPS(DWORD flagmask) {
	int	i;
	const struct {
		DWORD	mask;
		char	*name;
	} flags[] = {
#define FE(x) { x, #x},
		FE(DDSCAPS_RESERVED1)
		FE(DDSCAPS_ALPHA)
		FE(DDSCAPS_BACKBUFFER)
		FE(DDSCAPS_COMPLEX)
		FE(DDSCAPS_FLIP)
		FE(DDSCAPS_FRONTBUFFER)
		FE(DDSCAPS_OFFSCREENPLAIN)
		FE(DDSCAPS_OVERLAY)
		FE(DDSCAPS_PALETTE)
		FE(DDSCAPS_PRIMARYSURFACE)
		FE(DDSCAPS_PRIMARYSURFACELEFT)
		FE(DDSCAPS_SYSTEMMEMORY)
		FE(DDSCAPS_TEXTURE)
		FE(DDSCAPS_3DDEVICE)
		FE(DDSCAPS_VIDEOMEMORY)
		FE(DDSCAPS_VISIBLE)
		FE(DDSCAPS_WRITEONLY)
		FE(DDSCAPS_ZBUFFER)
		FE(DDSCAPS_OWNDC)
		FE(DDSCAPS_LIVEVIDEO)
		FE(DDSCAPS_HWCODEC)
		FE(DDSCAPS_MODEX)
		FE(DDSCAPS_MIPMAP)
		FE(DDSCAPS_RESERVED2)
		FE(DDSCAPS_ALLOCONLOAD)
		FE(DDSCAPS_VIDEOPORT)
		FE(DDSCAPS_LOCALVIDMEM)
		FE(DDSCAPS_NONLOCALVIDMEM)
		FE(DDSCAPS_STANDARDVGAMODE)
		FE(DDSCAPS_OPTIMIZED)
	};
	for (i=0;i<sizeof(flags)/sizeof(flags[0]);i++)
		if (flags[i].mask & flagmask)
			DUMP("%s ",flags[i].name);
	DUMP("\n");
}

static void _dump_DDSD(DWORD flagmask) {
	int	i;
	const struct {
		DWORD	mask;
		char	*name;
	} flags[] = {
		FE(DDSD_CAPS)
		FE(DDSD_HEIGHT)
		FE(DDSD_WIDTH)
		FE(DDSD_PITCH)
		FE(DDSD_BACKBUFFERCOUNT)
		FE(DDSD_ZBUFFERBITDEPTH)
		FE(DDSD_ALPHABITDEPTH)
		FE(DDSD_PIXELFORMAT)
		FE(DDSD_CKDESTOVERLAY)
		FE(DDSD_CKDESTBLT)
		FE(DDSD_CKSRCOVERLAY)
		FE(DDSD_CKSRCBLT)
		FE(DDSD_MIPMAPCOUNT)
		FE(DDSD_REFRESHRATE)
		FE(DDSD_LINEARSIZE)
		FE(DDSD_LPSURFACE)
	};
	for (i=0;i<sizeof(flags)/sizeof(flags[0]);i++)
		if (flags[i].mask & flagmask)
			DUMP("%s ",flags[i].name);
	DUMP("\n");
}

static int _getpixelformat(LPDIRECTDRAW2 ddraw,LPDDPIXELFORMAT pf) {
	static XVisualInfo	*vi;
	XVisualInfo		vt;
	int			nitems;

	if (!vi)
		vi = TSXGetVisualInfo(display,VisualNoMask,&vt,&nitems);

	pf->dwFourCC = 0;
	if (ddraw->d.depth==8) {
		pf->dwFlags 		= DDPF_RGB|DDPF_PALETTEINDEXED8;
		pf->x.dwRGBBitCount	= 8;
		pf->y.dwRBitMask  	= 0;
		pf->z.dwGBitMask  	= 0;
		pf->xx.dwBBitMask 	= 0;
		pf->xy.dwRGBAlphaBitMask= 0;
		return 0;
	}
	if (ddraw->d.depth==16) {
		pf->dwFlags       	= DDPF_RGB;
		pf->x.dwRGBBitCount	= 16;
		pf->y.dwRBitMask	= vi[0].red_mask;
		pf->z.dwGBitMask	= vi[0].green_mask;
		pf->xx.dwBBitMask	= vi[0].blue_mask;
		pf->xy.dwRGBAlphaBitMask= 0;
		return 0;
	}
	FIXME(ddraw,"_getpixelformat:unknown depth %ld?\n",ddraw->d.depth);
	return DDERR_GENERIC;
}

/******************************************************************************
 *		IDirectDrawSurface,IDirectDrawSurface2,IDirectDrawSurface3
 *
 * Since DDS3 and DDS2 are supersets of DDS, we implement DDS3 and let
 * DDS and DDS2 use those functions. (Function calls did not change (except
 * using different DirectDrawSurfaceX version), just added flags and functions)
 */
static HRESULT WINAPI IDirectDrawSurface3_Lock(
    LPDIRECTDRAWSURFACE3 this,LPRECT32 lprect,LPDDSURFACEDESC lpddsd,DWORD flags, HANDLE32 hnd
) {
        TRACE(ddraw, "(%p)->Lock(%p,%p,%08lx,%08lx)\n",
		this,lprect,lpddsd,flags,(DWORD)hnd);
	if (flags & ~(DDLOCK_WAIT|DDLOCK_READONLY|DDLOCK_WRITEONLY))
	    WARN(ddraw, "(%p)->Lock(%p,%p,%08lx,%08lx)\n",
			 this,lprect,lpddsd,flags,(DWORD)hnd);

	if (lprect) {
		FIXME(ddraw,"	lprect: %dx%d-%dx%d\n",
			lprect->top,lprect->left,lprect->bottom,lprect->right
		);
		lpddsd->y.lpSurface = this->s.surface +
			(lprect->top*this->s.lpitch) +
			(lprect->left*(this->s.ddraw->d.depth/8));
	} else {
		assert(this->s.surface);
		lpddsd->y.lpSurface = this->s.surface;
	}
	lpddsd->dwFlags = DDSD_WIDTH|DDSD_HEIGHT|DDSD_PIXELFORMAT|DDSD_PITCH|DDSD_LPSURFACE;
	lpddsd->dwWidth		= this->s.width;
	lpddsd->dwHeight	= this->s.height;
	lpddsd->lPitch		= this->s.lpitch;
	_getpixelformat(this->s.ddraw,&(lpddsd->ddpfPixelFormat));
	return 0;
}

static HRESULT WINAPI DGA_IDirectDrawSurface3_Unlock(
	LPDIRECTDRAWSURFACE3 this,LPVOID surface
) {
	TRACE(ddraw,"(%p)->Unlock(%p)\n",this,surface);
	return 0;
}

static HRESULT WINAPI Xlib_IDirectDrawSurface3_Unlock(
	LPDIRECTDRAWSURFACE3 this,LPVOID surface)
{
	TRACE(ddraw,"(%p)->Unlock(%p)\n",this,surface);

	if (!this->s.ddraw->e.xlib.paintable)
		return DD_OK;

  /* Only redraw the screen when unlocking the buffer that is on screen */
  if ((this->t.xlib.image != NULL) && (this->t.xlib.on_screen)) {
#ifdef HAVE_LIBXXSHM
    if (this->s.ddraw->e.xlib.xshm_active)
      TSXShmPutImage(display,
		     this->s.ddraw->e.xlib.drawable,
		     DefaultGCOfScreen(screen),
		     this->t.xlib.image,
		     0, 0, 0, 0,
		     this->t.xlib.image->width,
		     this->t.xlib.image->height,
		     False);
    else
#endif
	TSXPutImage(		display,
				this->s.ddraw->e.xlib.drawable,
				DefaultGCOfScreen(screen),
				this->t.xlib.image,
				0, 0, 0, 0,
				this->t.xlib.image->width,
		  this->t.xlib.image->height);
  }
  
	if (this->s.palette && this->s.palette->cm)
		TSXSetWindowColormap(display,this->s.ddraw->e.xlib.drawable,this->s.palette->cm);

	return DD_OK;
}

static HRESULT WINAPI DGA_IDirectDrawSurface3_Flip(
	LPDIRECTDRAWSURFACE3 this,LPDIRECTDRAWSURFACE3 flipto,DWORD dwFlags
) {
#ifdef HAVE_LIBXXF86DGA
	TRACE(ddraw,"(%p)->Flip(%p,%08lx)\n",this,flipto,dwFlags);
	if (!flipto) {
		if (this->s.backbuffer)
			flipto = this->s.backbuffer;
		else
			flipto = this;
	}
	TSXF86DGASetViewPort(display,DefaultScreen(display),0,flipto->t.dga.fb_height);

	if (flipto->s.palette && flipto->s.palette->cm) {
		TSXF86DGAInstallColormap(display,DefaultScreen(display),flipto->s.palette->cm);
	}
	while (!TSXF86DGAViewPortChanged(display,DefaultScreen(display),2)) {
	}
	if (flipto!=this) {
		int	tmp;
		LPVOID	ptmp;

		tmp = this->t.dga.fb_height;
		this->t.dga.fb_height = flipto->t.dga.fb_height;
		flipto->t.dga.fb_height = tmp;

		ptmp = this->s.surface;
		this->s.surface = flipto->s.surface;
		flipto->s.surface = ptmp;
	}
	return 0;
#else /* defined(HAVE_LIBXXF86DGA) */
	return E_UNEXPECTED;
#endif /* defined(HAVE_LIBXXF86DGA) */
}

static HRESULT WINAPI Xlib_IDirectDrawSurface3_Flip(
	LPDIRECTDRAWSURFACE3 this,LPDIRECTDRAWSURFACE3 flipto,DWORD dwFlags
) {
	TRACE(ddraw,"(%p)->Flip(%p,%08lx)\n",this,flipto,dwFlags);
	if (!this->s.ddraw->e.xlib.paintable)
		return 0;

	if (!flipto) {
		if (this->s.backbuffer)
			flipto = this->s.backbuffer;
		else
			flipto = this;
	}
  
#ifdef HAVE_LIBXXSHM
	if (this->s.ddraw->e.xlib.xshm_active) {
	  TSXShmPutImage(display,
			 this->s.ddraw->e.xlib.drawable,
			 DefaultGCOfScreen(screen),
			 flipto->t.xlib.image,
			 0, 0, 0, 0,
			 flipto->t.xlib.image->width,
			 flipto->t.xlib.image->height,
			 False);
	} else
#endif
	TSXPutImage(display,
				this->s.ddraw->e.xlib.drawable,
				DefaultGCOfScreen(screen),
				flipto->t.xlib.image,
				0, 0, 0, 0,
				flipto->t.xlib.image->width,
				flipto->t.xlib.image->height);
	
	if (flipto->s.palette && flipto->s.palette->cm) {
	  TSXSetWindowColormap(display,this->s.ddraw->e.xlib.drawable,flipto->s.palette->cm);
	}
	if (flipto!=this) {
		XImage *tmp;
		LPVOID	*surf;
		tmp = this->t.xlib.image;
		this->t.xlib.image = flipto->t.xlib.image;
		flipto->t.xlib.image = tmp;
		surf = this->s.surface;
		this->s.surface = flipto->s.surface;
		flipto->s.surface = surf;
	}
	return 0;
}


/* The IDirectDrawSurface3::SetPalette method attaches the specified
 * DirectDrawPalette object to a surface. The surface uses this palette for all
 * subsequent operations. The palette change takes place immediately.
 */
static HRESULT WINAPI Xlib_IDirectDrawSurface3_SetPalette(
	LPDIRECTDRAWSURFACE3 this,LPDIRECTDRAWPALETTE pal
) {
	TRACE(ddraw,"(%p)->SetPalette(%p)\n",this,pal);
        /* According to spec, we are only supposed to 
         * AddRef if this is not the same palette.
         */
        if( this->s.palette != pal )
        {
          if( pal != NULL )
            pal->lpvtbl->fnAddRef( pal );
          if( this->s.palette != NULL )
            this->s.palette->lpvtbl->fnRelease( this->s.palette );
	  this->s.palette = pal; 

          /* I think that we need to attach it to all backbuffers...*/
          if( this->s.backbuffer ) {
             if( this->s.backbuffer->s.palette )
               this->s.backbuffer->s.palette->lpvtbl->fnRelease(
                 this->s.backbuffer->s.palette );
             this->s.backbuffer->s.palette = pal;
             if( pal )
                pal->lpvtbl->fnAddRef( pal );
           }
      
          /* Perform the refresh */
          TSXSetWindowColormap(display,this->s.ddraw->e.xlib.drawable,this->s.palette->cm);
        }

	return 0;
}

static HRESULT WINAPI DGA_IDirectDrawSurface3_SetPalette(
	LPDIRECTDRAWSURFACE3 this,LPDIRECTDRAWPALETTE pal
) {
	TRACE(ddraw,"(%p)->SetPalette(%p)\n",this,pal);
#ifdef HAVE_LIBXXF86DGA
        /* According to spec, we are only supposed to 
         * AddRef if this is not the same palette.
         */
        if( this->s.palette != pal )
        {
          if( pal != NULL ) 
	  	pal->lpvtbl->fnAddRef( pal );
          if( this->s.palette != NULL )
            this->s.palette->lpvtbl->fnRelease( this->s.palette );
	  this->s.palette = pal; 

          /* I think that we need to attach it to all backbuffers...*/
          if( this->s.backbuffer ) {
             if( this->s.backbuffer->s.palette )
               this->s.backbuffer->s.palette->lpvtbl->fnRelease(this->s.backbuffer->s.palette );
             this->s.backbuffer->s.palette = pal;
             if( pal ) pal->lpvtbl->fnAddRef( pal );
          }
	  TSXF86DGAInstallColormap(display,DefaultScreen(display),this->s.palette->cm);
        }
	return 0;
#else /* defined(HAVE_LIBXXF86DGA) */
	return E_UNEXPECTED;
#endif /* defined(HAVE_LIBXXF86DGA) */


}

static HRESULT WINAPI IDirectDrawSurface3_Blt(
	LPDIRECTDRAWSURFACE3 this,LPRECT32 rdst,LPDIRECTDRAWSURFACE3 src,LPRECT32 rsrc,DWORD dwFlags,LPDDBLTFX lpbltfx
) {
	RECT32	xdst,xsrc;
	int	i,j;

	if (TRACE_ON(ddraw)) {
	  TRACE(ddraw,"(%p)->(%p,%p,%p,%08lx,%p)\n",
		this,rdst,src,rsrc,dwFlags,lpbltfx);
	  if (rdst) TRACE(ddraw,"	destrect :%dx%d-%dx%d\n",rdst->left,rdst->top,rdst->right,rdst->bottom);
	  if (rsrc) TRACE(ddraw,"	srcrect  :%dx%d-%dx%d\n",rsrc->left,rsrc->top,rsrc->right,rsrc->bottom);
	  TRACE(ddraw,"\tflags: ");_dump_DDBLT(dwFlags);fprintf(stderr,"\n");
	  if (dwFlags & DDBLT_DDFX) {
	    TRACE(ddraw,"	blitfx: \n");_dump_DDBLTFX(lpbltfx->dwDDFX);
	  }
	}
		
	if (rdst) {
		memcpy(&xdst,rdst,sizeof(xdst));
	} else {
		xdst.top	= 0;
		xdst.bottom	= this->s.height;
		xdst.left	= 0;
		xdst.right	= this->s.width;
	}

	if (rsrc) {
		memcpy(&xsrc,rsrc,sizeof(xsrc));
	} else {
		if (src) {
		xsrc.top	= 0;
		xsrc.bottom	= src->s.height;
		xsrc.left	= 0;
		xsrc.right	= src->s.width;
		} else {
		    memset(&xsrc,0,sizeof(xsrc));
		}
	}

	dwFlags &= ~(DDBLT_WAIT|DDBLT_ASYNC);/* FIXME: can't handle right now */
	
	if (dwFlags & DDBLT_COLORFILL) {
		int	bpp = this->s.ddraw->d.depth/8;
		LPBYTE	xline,xpixel;

		xline = (LPBYTE)this->s.surface+xdst.top*this->s.lpitch;
		for (i=xdst.top;i<xdst.bottom;i++) {
			xpixel = xline+bpp*xdst.left;

			for (j=xdst.left;j<xdst.right;j++) {
				/* FIXME: this only works on little endian
				 * architectures, where DWORD starts with low
				 * byte first!
				 */
				memcpy(xpixel,&(lpbltfx->b.dwFillColor),bpp);
				xpixel += bpp;
			}
			xline += this->s.lpitch;
		}
		dwFlags &= ~(DDBLT_COLORFILL);
	}

	if (!src) {
	    if (dwFlags) {
	      TRACE(ddraw,"\t(src=NULL):Unsupported flags: ");_dump_DDBLT(dwFlags);fprintf(stderr,"\n");
	    }
	    return 0;
	}

	if (	(xsrc.top ==0) && (xsrc.bottom ==this->s.height) &&
		(xsrc.left==0) && (xsrc.right  ==this->s.width) &&
		(xdst.top ==0) && (xdst.bottom ==this->s.height) &&
		(xdst.left==0) && (xdst.right  ==this->s.width)  &&
		!dwFlags
	) {
		memcpy(this->s.surface,src->s.surface,this->s.height*this->s.lpitch);
	} else {
	  int bpp = this->s.ddraw->d.depth / 8;
	  int height = xsrc.bottom - xsrc.top;
	  int width = (xsrc.right - xsrc.left) * bpp;
	  int h;

	  for (h = 0; h < height; h++) {
	    memcpy(this->s.surface + ((h + xdst.top) * this->s.lpitch) + xdst.left * bpp,
		   src->s.surface + ((h + xsrc.top) * src->s.lpitch) + xsrc.left * bpp,
		   width);
	  }
	}
	
	if (dwFlags && FIXME_ON(ddraw)) {
	  FIXME(ddraw,"\tUnsupported flags: ");_dump_DDBLT(dwFlags);
	}
	return 0;
}

static HRESULT WINAPI Xlib_IDirectDrawSurface3_Blt(
	LPDIRECTDRAWSURFACE3 this,LPRECT32 rdst,LPDIRECTDRAWSURFACE3 src,LPRECT32 rsrc,DWORD dwFlags,LPDDBLTFX lpbltfx
) {
  HRESULT ret;
  
  /* First, call the "common" blit function */
  ret = IDirectDrawSurface3_Blt(this, rdst, src, rsrc, dwFlags, lpbltfx);

  /* Then put the result on screen if blited on main screen buffer */
  if (!this->s.ddraw->e.xlib.paintable)
    return ret;

  if ((this->t.xlib.image != NULL) && (this->t.xlib.on_screen)) {
#ifdef HAVE_LIBXXSHM
    if (this->s.ddraw->e.xlib.xshm_active)
      TSXShmPutImage(display,
		     this->s.ddraw->e.xlib.drawable,
		     DefaultGCOfScreen(screen),
		     this->t.xlib.image,
		     0, 0, 0, 0,
		     this->t.xlib.image->width,
		     this->t.xlib.image->height,
		     False);
    else
#endif
      TSXPutImage(display,
		  this->s.ddraw->e.xlib.drawable,
		  DefaultGCOfScreen(screen),
		  this->t.xlib.image,
		  0, 0, 0, 0,
		  this->t.xlib.image->width,
		  this->t.xlib.image->height);
  }
  if (this->s.palette && this->s.palette->cm)
    TSXSetWindowColormap(display,this->s.ddraw->e.xlib.drawable,this->s.palette->cm);

  return ret;
}

static HRESULT WINAPI IDirectDrawSurface3_BltFast(
	LPDIRECTDRAWSURFACE3 this,DWORD dstx,DWORD dsty,LPDIRECTDRAWSURFACE3 src,LPRECT32 rsrc,DWORD trans
) {
	int		i,bpp;
	DDSURFACEDESC	ddesc,sdesc;

	if (TRACE_ON(ddraw)) {
	    TRACE(ddraw,"(%p)->(%ld,%ld,%p,%p,%08lx)\n",
		    this,dstx,dsty,src,rsrc,trans
	    );
	    TRACE(ddraw,"	trans:");_dump_DDBLTFAST(trans);fprintf(stderr,"\n");
	    TRACE(ddraw,"	srcrect: %dx%d-%dx%d\n",rsrc->left,rsrc->top,rsrc->right,rsrc->bottom);
	}
	/* We need to lock the surfaces, or we won't get refreshes when done */
	src ->lpvtbl->fnLock(src, NULL,&sdesc,0,0);
	this->lpvtbl->fnLock(this,NULL,&ddesc,0,0);
	bpp = this->s.ddraw->d.depth/8;
	for (i=0;i<rsrc->bottom-rsrc->top;i++) {
		memcpy(	ddesc.y.lpSurface+(dsty     +i)*ddesc.lPitch+dstx*bpp,
			sdesc.y.lpSurface+(rsrc->top+i)*sdesc.lPitch+rsrc->left*bpp,
			(rsrc->right-rsrc->left)*bpp
		);
	}
	this->lpvtbl->fnUnlock(this,ddesc.y.lpSurface);
	src ->lpvtbl->fnUnlock(src,sdesc.y.lpSurface);
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_BltBatch(
	LPDIRECTDRAWSURFACE3 this,LPDDBLTBATCH ddbltbatch,DWORD x,DWORD y
) {
	FIXME(ddraw,"(%p)->BltBatch(%p,%08lx,%08lx),stub!\n",
		this,ddbltbatch,x,y
	);
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_GetCaps(
	LPDIRECTDRAWSURFACE3 this,LPDDSCAPS caps
) {
	TRACE(ddraw,"(%p)->GetCaps(%p)\n",this,caps);
	caps->dwCaps = DDCAPS_PALETTE; /* probably more */
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_GetSurfaceDesc(
	LPDIRECTDRAWSURFACE3 this,LPDDSURFACEDESC ddsd
) { 
	if (TRACE_ON(ddraw)) {
		TRACE(ddraw, "(%p)->GetSurfaceDesc(%p)\n",
			     this,ddsd);
		fprintf(stderr,"	flags: ");
		_dump_DDSD(ddsd->dwFlags);
		fprintf(stderr,"\n");
	}

	ddsd->dwFlags |= DDSD_PIXELFORMAT|DDSD_CAPS|DDSD_BACKBUFFERCOUNT|DDSD_HEIGHT|DDSD_WIDTH;
	ddsd->ddsCaps.dwCaps	= DDSCAPS_PALETTE;
	ddsd->dwBackBufferCount	= 1;
	ddsd->dwHeight		= this->s.height;
	ddsd->dwWidth		= this->s.width;
	ddsd->lPitch		= this->s.lpitch;
	if (this->s.backbuffer)
		ddsd->ddsCaps.dwCaps |= DDSCAPS_PRIMARYSURFACE|DDSCAPS_FLIP;
	_getpixelformat(this->s.ddraw,&(ddsd->ddpfPixelFormat));
	
	return 0;
}

static ULONG WINAPI IDirectDrawSurface3_AddRef(LPDIRECTDRAWSURFACE3 this) {
        TRACE( ddraw, "(%p)->() incrementing from %lu.\n", this, this->ref );

	return ++(this->ref);
}

static ULONG WINAPI DGA_IDirectDrawSurface3_Release(LPDIRECTDRAWSURFACE3 this) {
        TRACE( ddraw, "(%p)->() decrementing from %lu.\n", this, this->ref );

#ifdef HAVE_LIBXXF86DGA
	if (!--(this->ref)) {
		this->s.ddraw->lpvtbl->fnRelease(this->s.ddraw);
		/* clear out of surface list */
		if (this->t.dga.fb_height == -1) {
			HeapFree(GetProcessHeap(),0,this->s.surface);
		} else {
			this->s.ddraw->e.dga.vpmask &= ~(1<<(this->t.dga.fb_height/this->s.ddraw->e.dga.fb_height));
		}
		HeapFree(GetProcessHeap(),0,this);
		return 0;
	}
#endif /* defined(HAVE_LIBXXF86DGA) */
	return this->ref;
}

static ULONG WINAPI Xlib_IDirectDrawSurface3_Release(LPDIRECTDRAWSURFACE3 this) {
        TRACE( ddraw, "(%p)->() decrementing from %lu.\n", this, this->ref );

	if (!--(this->ref)) {
		this->s.ddraw->lpvtbl->fnRelease(this->s.ddraw);

		if( this->s.backbuffer )
		  this->s.backbuffer->lpvtbl->fnRelease(this->s.backbuffer);

    if (this->t.xlib.image != NULL) {
		this->t.xlib.image->data = NULL;
      
#ifdef HAVE_LIBXXSHM
      if (this->s.ddraw->e.xlib.xshm_active) {
	TSXShmDetach(display, &(this->t.xlib.shminfo));
		TSXDestroyImage(this->t.xlib.image);
	shmdt(this->t.xlib.shminfo.shmaddr);
      } else {
#endif
	HeapFree(GetProcessHeap(),0,this->s.surface);
	TSXDestroyImage(this->t.xlib.image);
#ifdef HAVE_LIBXXSHM	
      }
#endif
      
		this->t.xlib.image = 0;
    } else {
      HeapFree(GetProcessHeap(),0,this->s.surface);
    }

		if (this->s.palette)
                	this->s.palette->lpvtbl->fnRelease(this->s.palette);

		HeapFree(GetProcessHeap(),0,this);
		return 0;
	}
  
	return this->ref;
}

static HRESULT WINAPI IDirectDrawSurface3_GetAttachedSurface(
	LPDIRECTDRAWSURFACE3 this,LPDDSCAPS lpddsd,LPDIRECTDRAWSURFACE3 *lpdsf
) {
        TRACE(ddraw, "(%p)->GetAttachedSurface(%p,%p)\n",
		     this, lpddsd, lpdsf);

	if (TRACE_ON(ddraw)) {
		TRACE(ddraw,"	caps ");
		_dump_DDSCAPS(lpddsd->dwCaps);
	}

	if (!(lpddsd->dwCaps & DDSCAPS_BACKBUFFER)) {
		FIXME(ddraw,"whoops, can only handle backbuffers for now\n");
		return E_FAIL;
	}

	/* FIXME: should handle more than one backbuffer */
	*lpdsf = this->s.backbuffer;
 
        if( this->s.backbuffer )
          this->s.backbuffer->lpvtbl->fnAddRef( this->s.backbuffer );

	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_Initialize(
	LPDIRECTDRAWSURFACE3 this,LPDIRECTDRAW ddraw,LPDDSURFACEDESC lpdsfd
) {
	return DDERR_ALREADYINITIALIZED;
}

static HRESULT WINAPI IDirectDrawSurface3_GetPixelFormat(
	LPDIRECTDRAWSURFACE3 this,LPDDPIXELFORMAT pf
) {
	TRACE(ddraw,"(%p)->(%p)\n",this,pf);
	return _getpixelformat(this->s.ddraw,pf);
}

static HRESULT WINAPI IDirectDrawSurface3_GetBltStatus(LPDIRECTDRAWSURFACE3 this,DWORD dwFlags) {
	FIXME(ddraw,"(%p)->(0x%08lx),stub!\n",this,dwFlags);
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_GetOverlayPosition(
	LPDIRECTDRAWSURFACE3 this,LPLONG x1,LPLONG x2
) {
	FIXME(ddraw,"(%p)->(%p,%p),stub!\n",this,x1,x2);
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_SetClipper(
	LPDIRECTDRAWSURFACE3 this,LPDIRECTDRAWCLIPPER clipper
) {
	FIXME(ddraw,"(%p)->(%p),stub!\n",this,clipper);
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_AddAttachedSurface(
	LPDIRECTDRAWSURFACE3 this,LPDIRECTDRAWSURFACE3 surf
) {
	FIXME(ddraw,"(%p)->(%p),stub!\n",this,surf);
	this->s.backbuffer = surf;
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_GetDC(LPDIRECTDRAWSURFACE3 this,HDC32* lphdc) {
	FIXME(ddraw,"(%p)->GetDC(%p)\n",this,lphdc);
	*lphdc = BeginPaint32(this->s.ddraw->d.window,&this->s.ddraw->d.ps);
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_ReleaseDC(LPDIRECTDRAWSURFACE3 this,HDC32 hdc) {
	FIXME(ddraw,"(%p)->(0x%08lx),stub!\n",this,(long)hdc);
	EndPaint32(this->s.ddraw->d.window,&this->s.ddraw->d.ps);
	return 0;
}


static HRESULT WINAPI IDirectDrawSurface3_QueryInterface(LPDIRECTDRAWSURFACE3 this,REFIID refiid,LPVOID *obj) {
        char    xrefiid[50];

        WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
        TRACE(ddraw,"(%p)->(%s,%p)\n",this,xrefiid,obj);
	
	/* DirectDrawSurface,DirectDrawSurface2 and DirectDrawSurface3 use
	 * the same interface. And IUnknown does that too of course.
	 */
	if (	!memcmp(&IID_IDirectDrawSurface3,refiid,sizeof(IID))	||
		!memcmp(&IID_IDirectDrawSurface2,refiid,sizeof(IID))	||
		!memcmp(&IID_IDirectDrawSurface,refiid,sizeof(IID))	||
		!memcmp(&IID_IUnknown,refiid,sizeof(IID))
	) {
		*obj = this;
		this->lpvtbl->fnAddRef(this);
		return 0;
	}
	FIXME(ddraw,"(%p):interface for IID %s NOT found!\n",this,xrefiid);
	return OLE_E_ENUM_NOMORE;
}

static HRESULT WINAPI IDirectDrawSurface3_IsLost(LPDIRECTDRAWSURFACE3 this) {
	TRACE(ddraw,"(%p)->(), stub!\n",this);
	return 0; /* hmm */
}

static HRESULT WINAPI IDirectDrawSurface3_EnumAttachedSurfaces(LPDIRECTDRAWSURFACE3 this,LPVOID context,LPDDENUMSURFACESCALLBACK esfcb) {
	FIXME(ddraw,"(%p)->(%p,%p),stub!\n",this,context,esfcb);
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_Restore(LPDIRECTDRAWSURFACE3 this) {
	FIXME(ddraw,"(%p)->(),stub!\n",this);
	return 0;
}

static HRESULT WINAPI IDirectDrawSurface3_SetColorKey(
	LPDIRECTDRAWSURFACE3 this, DWORD dwFlags, LPDDCOLORKEY ckey
) {
	FIXME(ddraw,"(%p)->(0x%08lx,%p),stub!\n",this,dwFlags,ckey);

        if( dwFlags & DDCKEY_SRCBLT )
           dwFlags &= ~DDCKEY_SRCBLT;
        if( dwFlags )
          TRACE( ddraw, "unhandled dwFlags: %08lx\n", dwFlags );
	return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_AddOverlayDirtyRect(
        LPDIRECTDRAWSURFACE3 this, 
        LPRECT32 lpRect )
{
  FIXME(ddraw,"(%p)->(%p),stub!\n",this,lpRect); 

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_DeleteAttachedSurface(
        LPDIRECTDRAWSURFACE3 this, 
        DWORD dwFlags,
        LPDIRECTDRAWSURFACE3 lpDDSAttachedSurface )
{
  FIXME(ddraw,"(%p)->(0x%08lx,%p),stub!\n",this,dwFlags,lpDDSAttachedSurface);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_EnumOverlayZOrders(
        LPDIRECTDRAWSURFACE3 this,
        DWORD dwFlags,
        LPVOID lpContext,
        LPDDENUMSURFACESCALLBACK lpfnCallback )
{
  FIXME(ddraw,"(%p)->(0x%08lx,%p,%p),stub!\n", this,dwFlags,
          lpContext, lpfnCallback );

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_GetClipper(
        LPDIRECTDRAWSURFACE3 this,
        LPDIRECTDRAWCLIPPER* lplpDDClipper )
{
  FIXME(ddraw,"(%p)->(%p),stub!\n", this, lplpDDClipper);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_GetColorKey(
        LPDIRECTDRAWSURFACE3 this,
        DWORD dwFlags,
        LPDDCOLORKEY lpDDColorKey )
{
  FIXME(ddraw,"(%p)->(0x%08lx,%p),stub!\n", this, dwFlags, lpDDColorKey);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_GetFlipStatus(
        LPDIRECTDRAWSURFACE3 this,
        DWORD dwFlags ) 
{
  FIXME(ddraw,"(%p)->(0x%08lx),stub!\n", this, dwFlags);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_GetPalette(
        LPDIRECTDRAWSURFACE3 this,
        LPDIRECTDRAWPALETTE* lplpDDPalette )
{
  FIXME(ddraw,"(%p)->(%p),stub!\n", this, lplpDDPalette);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_SetOverlayPosition(
        LPDIRECTDRAWSURFACE3 this,
        LONG lX,
        LONG lY)
{
  FIXME(ddraw,"(%p)->(%ld,%ld),stub!\n", this, lX, lY);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_UpdateOverlay(
        LPDIRECTDRAWSURFACE3 this,
        LPRECT32 lpSrcRect,
        LPDIRECTDRAWSURFACE3 lpDDDestSurface,
        LPRECT32 lpDestRect,
        DWORD dwFlags,
        LPDDOVERLAYFX lpDDOverlayFx )
{
  FIXME(ddraw,"(%p)->(%p,%p,%p,0x%08lx,%p),stub!\n", this,
         lpSrcRect, lpDDDestSurface, lpDestRect, dwFlags, lpDDOverlayFx );  

  return DD_OK;
}
 
static HRESULT WINAPI IDirectDrawSurface3_UpdateOverlayDisplay(
        LPDIRECTDRAWSURFACE3 this,
        DWORD dwFlags )
{
  FIXME(ddraw,"(%p)->(0x%08lx),stub!\n", this, dwFlags); 

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_UpdateOverlayZOrder(
        LPDIRECTDRAWSURFACE3 this,
        DWORD dwFlags,
        LPDIRECTDRAWSURFACE3 lpDDSReference )
{
  FIXME(ddraw,"(%p)->(0x%08lx,%p),stub!\n", this, dwFlags, lpDDSReference);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_GetDDInterface(
        LPDIRECTDRAWSURFACE3 this,
        LPVOID* lplpDD )
{
  FIXME(ddraw,"(%p)->(%p),stub!\n", this, lplpDD);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_PageLock(
        LPDIRECTDRAWSURFACE3 this,
        DWORD dwFlags )
{
  FIXME(ddraw,"(%p)->(0x%08lx),stub!\n", this, dwFlags);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_PageUnlock(
        LPDIRECTDRAWSURFACE3 this,
        DWORD dwFlags )
{
  FIXME(ddraw,"(%p)->(0x%08lx),stub!\n", this, dwFlags);

  return DD_OK;
}

static HRESULT WINAPI IDirectDrawSurface3_SetSurfaceDesc(
        LPDIRECTDRAWSURFACE3 this,
        LPDDSURFACEDESC lpDDSD,
        DWORD dwFlags )
{
  FIXME(ddraw,"(%p)->(%p,0x%08lx),stub!\n", this, lpDDSD, dwFlags);

  return DD_OK;
}

static struct IDirectDrawSurface3_VTable dga_dds3vt = {
	IDirectDrawSurface3_QueryInterface,
	IDirectDrawSurface3_AddRef,
	DGA_IDirectDrawSurface3_Release,
	IDirectDrawSurface3_AddAttachedSurface,
	IDirectDrawSurface3_AddOverlayDirtyRect,
	IDirectDrawSurface3_Blt,
	IDirectDrawSurface3_BltBatch,
	IDirectDrawSurface3_BltFast,
	IDirectDrawSurface3_DeleteAttachedSurface,
	IDirectDrawSurface3_EnumAttachedSurfaces,
	IDirectDrawSurface3_EnumOverlayZOrders,
	DGA_IDirectDrawSurface3_Flip,
	IDirectDrawSurface3_GetAttachedSurface,
	IDirectDrawSurface3_GetBltStatus,
	IDirectDrawSurface3_GetCaps,
	IDirectDrawSurface3_GetClipper,
	IDirectDrawSurface3_GetColorKey,
	IDirectDrawSurface3_GetDC,
	IDirectDrawSurface3_GetFlipStatus,
	IDirectDrawSurface3_GetOverlayPosition,
	IDirectDrawSurface3_GetPalette,
	IDirectDrawSurface3_GetPixelFormat,
	IDirectDrawSurface3_GetSurfaceDesc,
	IDirectDrawSurface3_Initialize,
	IDirectDrawSurface3_IsLost,
	IDirectDrawSurface3_Lock,
	IDirectDrawSurface3_ReleaseDC,
	IDirectDrawSurface3_Restore,
	IDirectDrawSurface3_SetClipper,
	IDirectDrawSurface3_SetColorKey,
	IDirectDrawSurface3_SetOverlayPosition,
	DGA_IDirectDrawSurface3_SetPalette,
	DGA_IDirectDrawSurface3_Unlock,
	IDirectDrawSurface3_UpdateOverlay,
	IDirectDrawSurface3_UpdateOverlayDisplay,
	IDirectDrawSurface3_UpdateOverlayZOrder,
	IDirectDrawSurface3_GetDDInterface,
	IDirectDrawSurface3_PageLock,
	IDirectDrawSurface3_PageUnlock,
	IDirectDrawSurface3_SetSurfaceDesc,
};

static struct IDirectDrawSurface3_VTable xlib_dds3vt = {
	IDirectDrawSurface3_QueryInterface,
	IDirectDrawSurface3_AddRef,
	Xlib_IDirectDrawSurface3_Release,
	IDirectDrawSurface3_AddAttachedSurface,
	IDirectDrawSurface3_AddOverlayDirtyRect,
	Xlib_IDirectDrawSurface3_Blt,
	IDirectDrawSurface3_BltBatch,
	IDirectDrawSurface3_BltFast,
	IDirectDrawSurface3_DeleteAttachedSurface,
	IDirectDrawSurface3_EnumAttachedSurfaces,
	IDirectDrawSurface3_EnumOverlayZOrders,
	Xlib_IDirectDrawSurface3_Flip,
	IDirectDrawSurface3_GetAttachedSurface,
	IDirectDrawSurface3_GetBltStatus,
	IDirectDrawSurface3_GetCaps,
	IDirectDrawSurface3_GetClipper,
	IDirectDrawSurface3_GetColorKey,
	IDirectDrawSurface3_GetDC,
	IDirectDrawSurface3_GetFlipStatus,
	IDirectDrawSurface3_GetOverlayPosition,
	IDirectDrawSurface3_GetPalette,
	IDirectDrawSurface3_GetPixelFormat,
	IDirectDrawSurface3_GetSurfaceDesc,
	IDirectDrawSurface3_Initialize,
	IDirectDrawSurface3_IsLost,
	IDirectDrawSurface3_Lock,
	IDirectDrawSurface3_ReleaseDC,
	IDirectDrawSurface3_Restore,
	IDirectDrawSurface3_SetClipper,
	IDirectDrawSurface3_SetColorKey,
	IDirectDrawSurface3_SetOverlayPosition,
	Xlib_IDirectDrawSurface3_SetPalette,
	Xlib_IDirectDrawSurface3_Unlock,
	IDirectDrawSurface3_UpdateOverlay,
	IDirectDrawSurface3_UpdateOverlayDisplay,
	IDirectDrawSurface3_UpdateOverlayZOrder,
	IDirectDrawSurface3_GetDDInterface,
	IDirectDrawSurface3_PageLock,
	IDirectDrawSurface3_PageUnlock,
	IDirectDrawSurface3_SetSurfaceDesc,
};


/******************************************************************************
 *			IDirectDrawClipper
 */
static HRESULT WINAPI IDirectDrawClipper_SetHwnd(
	LPDIRECTDRAWCLIPPER this,DWORD x,HWND32 hwnd
) {
	FIXME(ddraw,"(%p)->SetHwnd(0x%08lx,0x%08lx),stub!\n",this,x,(DWORD)hwnd);
	return 0;
}

static ULONG WINAPI IDirectDrawClipper_Release(LPDIRECTDRAWCLIPPER this) {
        TRACE( ddraw, "(%p)->() decrementing from %lu.\n", this, this->ref );

	this->ref--;
	if (this->ref)
		return this->ref;
	HeapFree(GetProcessHeap(),0,this);
	return 0;
}

static HRESULT WINAPI IDirectDrawClipper_GetClipList(
	LPDIRECTDRAWCLIPPER this,LPRECT32 rects,LPRGNDATA lprgn,LPDWORD hmm
) {
	FIXME(ddraw,"(%p,%p,%p,%p),stub!\n",this,rects,lprgn,hmm);
	if (hmm) *hmm=0;
	return 0;
}

static HRESULT WINAPI IDirectDrawClipper_SetClipList(
	LPDIRECTDRAWCLIPPER this,LPRGNDATA lprgn,DWORD hmm
) {
	FIXME(ddraw,"(%p,%p,%ld),stub!\n",this,lprgn,hmm);
	return 0;
}

static struct IDirectDrawClipper_VTable ddclipvt = {
	(void*)1,
	(void*)2,
	IDirectDrawClipper_Release,
	IDirectDrawClipper_GetClipList,
	(void*)5,
	(void*)6,
	(void*)7,
	IDirectDrawClipper_SetClipList,
	IDirectDrawClipper_SetHwnd
};

/******************************************************************************
 *			IDirectDrawPalette
 */
static HRESULT WINAPI IDirectDrawPalette_GetEntries(
	LPDIRECTDRAWPALETTE this,DWORD x,DWORD start,DWORD count,LPPALETTEENTRY palent
) {
	int	i;

	if (!this->cm) /* should not happen */ {
		FIXME(ddraw,"app tried to read colormap for non-palettized mode\n");
		return DDERR_GENERIC;
	}
	for (i=0;i<count;i++) {
                palent[i].peRed   = this->palents[start+i].peRed;
                palent[i].peBlue  = this->palents[start+i].peBlue;
                palent[i].peGreen = this->palents[start+i].peGreen;
                palent[i].peFlags = this->palents[start+i].peFlags;

	}
	return 0;
}

static HRESULT WINAPI Xlib_IDirectDrawPalette_SetEntries(
	LPDIRECTDRAWPALETTE this,DWORD x,DWORD start,DWORD count,LPPALETTEENTRY palent
) {
	XColor		xc;
	int		i;

	TRACE(ddraw,"(%p)->SetEntries(%08lx,%ld,%ld,%p)\n",
		this,x,start,count,palent
	);
	if (!this->cm) /* should not happen */ {
		FIXME(ddraw,"app tried to set colormap in non-palettized mode\n");
		return DDERR_GENERIC;
	}
	if (!this->ddraw->e.xlib.paintable)
		return 0;
	for (i=0;i<count;i++) {
		xc.red = palent[i].peRed<<8;
		xc.blue = palent[i].peBlue<<8;
		xc.green = palent[i].peGreen<<8;
		xc.flags = DoRed|DoBlue|DoGreen;
		xc.pixel = start+i;

		TSXStoreColor(display,this->cm,&xc);

		this->palents[start+i].peRed = palent[i].peRed;
		this->palents[start+i].peBlue = palent[i].peBlue;
		this->palents[start+i].peGreen = palent[i].peGreen;
                this->palents[start+i].peFlags = palent[i].peFlags;
	}
	return 0;
}

static HRESULT WINAPI DGA_IDirectDrawPalette_SetEntries(
	LPDIRECTDRAWPALETTE this,DWORD x,DWORD start,DWORD count,LPPALETTEENTRY palent
) {
#ifdef HAVE_LIBXXF86DGA
	XColor		xc;
	Colormap	cm;
	int		i;

	TRACE(ddraw,"(%p)->SetEntries(%08lx,%ld,%ld,%p)\n",
		this,x,start,count,palent
	);
	if (!this->cm) /* should not happen */ {
		FIXME(ddraw,"app tried to set colormap in non-palettized mode\n");
		return DDERR_GENERIC;
	}
	/* FIXME: free colorcells instead of freeing whole map */
	cm = this->cm;
	this->cm = TSXCopyColormapAndFree(display,this->cm);
	TSXFreeColormap(display,cm);

	for (i=0;i<count;i++) {
		xc.red = palent[i].peRed<<8;
		xc.blue = palent[i].peBlue<<8;
		xc.green = palent[i].peGreen<<8;
		xc.flags = DoRed|DoBlue|DoGreen;
		xc.pixel = i+start;

		TSXStoreColor(display,this->cm,&xc);

		this->palents[start+i].peRed = palent[i].peRed;
		this->palents[start+i].peBlue = palent[i].peBlue;
		this->palents[start+i].peGreen = palent[i].peGreen;
                this->palents[start+i].peFlags = palent[i].peFlags;
	}
	TSXF86DGAInstallColormap(display,DefaultScreen(display),this->cm);
	return 0;
#else /* defined(HAVE_LIBXXF86DGA) */
	return E_UNEXPECTED;
#endif /* defined(HAVE_LIBXXF86DGA) */
}

static ULONG WINAPI IDirectDrawPalette_Release(LPDIRECTDRAWPALETTE this) {
        TRACE( ddraw, "(%p)->() decrementing from %lu.\n", this, this->ref );
	if (!--(this->ref)) {
		if (this->cm) {
			TSXFreeColormap(display,this->cm);
			this->cm = 0;
		}
		HeapFree(GetProcessHeap(),0,this);
		return 0;
	}
	return this->ref;
}

static ULONG WINAPI IDirectDrawPalette_AddRef(LPDIRECTDRAWPALETTE this) {

        TRACE( ddraw, "(%p)->() incrementing from %lu.\n", this, this->ref );
	return ++(this->ref);
}

static HRESULT WINAPI IDirectDrawPalette_Initialize(
	LPDIRECTDRAWPALETTE this,LPDIRECTDRAW ddraw,DWORD x,LPPALETTEENTRY palent
) {
	return DDERR_ALREADYINITIALIZED;
}

static HRESULT WINAPI IDirectDrawPalette_GetCaps(
         LPDIRECTDRAWPALETTE this, LPDWORD lpdwCaps )
{
   FIXME( ddraw, "(%p)->(%p) stub.\n", this, lpdwCaps );
   return DD_OK;
} 

static HRESULT WINAPI IDirectDrawPalette_QueryInterface(
        LPDIRECTDRAWPALETTE this,REFIID refiid,LPVOID *obj ) 
{
  char    xrefiid[50];

  WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
  FIXME(ddraw,"(%p)->(%s,%p) stub.\n",this,xrefiid,obj);

  return S_OK;
}

static struct IDirectDrawPalette_VTable dga_ddpalvt = {
	IDirectDrawPalette_QueryInterface,
	IDirectDrawPalette_AddRef,
	IDirectDrawPalette_Release,
	IDirectDrawPalette_GetCaps,
	IDirectDrawPalette_GetEntries,
	IDirectDrawPalette_Initialize,
	DGA_IDirectDrawPalette_SetEntries
};

static struct IDirectDrawPalette_VTable xlib_ddpalvt = {
	IDirectDrawPalette_QueryInterface,
	IDirectDrawPalette_AddRef,
	IDirectDrawPalette_Release,
	IDirectDrawPalette_GetCaps,
	IDirectDrawPalette_GetEntries,
	IDirectDrawPalette_Initialize,
	Xlib_IDirectDrawPalette_SetEntries
};

static HRESULT WINAPI IDirect3D_QueryInterface(
        LPDIRECT3D this,REFIID refiid,LPVOID *obj
) {
	/* FIXME: Not sure if this is correct */
        char    xrefiid[50];

        WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
        TRACE(ddraw,"(%p)->(%s,%p)\n",this,xrefiid,obj);
        if (!memcmp(&IID_IUnknown,refiid,sizeof(IID_IUnknown))) {
                *obj = this;
                this->lpvtbl->fnAddRef(this);
                return 0;
        }
        if (!memcmp(&IID_IDirect3D,refiid,sizeof(IID_IDirect3D))) {
                LPDIRECT3D      d3d;

                d3d = HeapAlloc(GetProcessHeap(),0,sizeof(*d3d));
                d3d->ref = 1;
                d3d->ddraw = (LPDIRECTDRAW)this;
                this->lpvtbl->fnAddRef(this);
                d3d->lpvtbl = &d3dvt;
                *obj = d3d;
                return 0;
        }
        if (!memcmp(&IID_IDirect3D2,refiid,sizeof(IID_IDirect3D))) {
                LPDIRECT3D2     d3d;

                d3d = HeapAlloc(GetProcessHeap(),0,sizeof(*d3d));
                d3d->ref = 1;
                d3d->ddraw = (LPDIRECTDRAW)this;
                this->lpvtbl->fnAddRef(this);
                d3d->lpvtbl = &d3d2vt;
                *obj = d3d;
                return 0;
        }
        FIXME(ddraw,"(%p):interface for IID %s NOT found!\n",this,xrefiid);
        return OLE_E_ENUM_NOMORE;
}

static ULONG WINAPI IDirect3D_AddRef(LPDIRECT3D this) {
        TRACE( ddraw, "(%p)->() incrementing from %lu.\n", this, this->ref );

        return ++(this->ref);
}

static ULONG WINAPI IDirect3D_Release(LPDIRECT3D this)
{
        TRACE( ddraw, "(%p)->() decrementing from %lu.\n", this, this->ref );

        if (!--(this->ref)) {
                this->ddraw->lpvtbl->fnRelease(this->ddraw);
                HeapFree(GetProcessHeap(),0,this);
                return 0;
        }
        return this->ref;
}

static HRESULT WINAPI IDirect3D_Initialize(
         LPDIRECT3D this, REFIID refiid )
{
  /* FIXME: Not sure if this is correct */
  char    xrefiid[50];

  WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
  FIXME(ddraw,"(%p)->(%s):stub.\n",this,xrefiid);
  
  return DDERR_ALREADYINITIALIZED;
}

/*******************************************************************************
 *				IDirect3D
 */
static struct IDirect3D_VTable d3dvt = {
	(void*)IDirect3D_QueryInterface,
	(void*)IDirect3D_AddRef,
	(void*)IDirect3D_Release,
	IDirect3D_Initialize,
	(void*)5,
	(void*)6,
	(void*)7,
	(void*)8,
	(void*)9,
};

/*******************************************************************************
 *				IDirect3D2
 */
static ULONG WINAPI IDirect3D2_Release(LPDIRECT3D2 this) {
        TRACE( ddraw, "(%p)->() decrementing from %lu.\n", this, this->ref );

	if (!--(this->ref)) {
		this->ddraw->lpvtbl->fnRelease(this->ddraw);
		HeapFree(GetProcessHeap(),0,this);
		return 0;
	}
	return this->ref;
}

static HRESULT WINAPI IDirect3D2_EnumDevices(
	LPDIRECT3D2 this,LPD3DENUMDEVICESCALLBACK cb, LPVOID context
) {
	D3DDEVICEDESC	d1,d2;

	FIXME(ddraw,"(%p)->(%p,%p),stub!\n",this,cb,context);
#if 0
	d1.dwSize	= sizeof(d1);
	d1.dwFlags	= 0;

	d2.dwSize	= sizeof(d2);
	d2.dwFlags	= 0;
	cb((void*)&IID_IDirect3DHALDevice,"WINE Direct3D HAL","direct3d",&d1,&d2,context);
#endif
	return 0;
}

static struct IDirect3D2_VTable d3d2vt = {
	(void*)1,
	(void*)2,
	IDirect3D2_Release,
	IDirect3D2_EnumDevices,
	(void*)5,
	(void*)6,
	(void*)7,
	(void*)8,
	(void*)9,
};

/*******************************************************************************
 *				IDirectDraw
 */

/* Used in conjunction with cbWndExtra for storage of the this ptr for the window.
 * Please adjust allocation in Xlib_DirectDrawCreate if you store more data here.
 */
static INT32 ddrawXlibThisOffset = 0;

static HRESULT WINAPI DGA_IDirectDraw2_CreateSurface(
	LPDIRECTDRAW2 this,LPDDSURFACEDESC lpddsd,LPDIRECTDRAWSURFACE *lpdsf,IUnknown *lpunk
) {
#ifdef HAVE_LIBXXF86DGA
	int	i;

	TRACE(ddraw, "(%p)->(%p,%p,%p)\n",this,lpddsd,lpdsf,lpunk);
	if (TRACE_ON(ddraw)) {
		DUMP("[w=%ld,h=%ld,flags ",lpddsd->dwWidth,lpddsd->dwHeight);
		_dump_DDSD(lpddsd->dwFlags);
		fprintf(stderr,"caps ");
		_dump_DDSCAPS(lpddsd->ddsCaps.dwCaps);
		fprintf(stderr,"]\n");
	}

	*lpdsf = (LPDIRECTDRAWSURFACE)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawSurface));
	this->lpvtbl->fnAddRef(this);
	(*lpdsf)->ref = 1;
	(*lpdsf)->lpvtbl = (LPDIRECTDRAWSURFACE_VTABLE)&dga_dds3vt;
	if (	(lpddsd->dwFlags & DDSD_CAPS) && 
		(lpddsd->ddsCaps.dwCaps & DDSCAPS_OFFSCREENPLAIN)
	) {
		if (!(lpddsd->dwFlags & DDSD_WIDTH))
			lpddsd->dwWidth = this->e.dga.fb_width;
		if (!(lpddsd->dwFlags & DDSD_HEIGHT))
			lpddsd->dwHeight = this->e.dga.fb_height;
		(*lpdsf)->s.surface = (LPBYTE)HeapAlloc(GetProcessHeap(),0,lpddsd->dwWidth*lpddsd->dwHeight*this->d.depth/8);
		(*lpdsf)->t.dga.fb_height = -1;
		(*lpdsf)->s.lpitch = lpddsd->dwWidth*this->d.depth/8;
		TRACE(ddraw,"using system memory for a primary surface\n");
	} else {
		for (i=0;i<32;i++)
			if (!(this->e.dga.vpmask & (1<<i)))
				break;
		TRACE(ddraw,"using viewport %d for a primary surface\n",i);
		/* if i == 32 or maximum ... return error */
		this->e.dga.vpmask|=(1<<i);
		(*lpdsf)->s.surface = this->e.dga.fb_addr+((i*this->e.dga.fb_height)*this->e.dga.fb_width*this->d.depth/8);
		(*lpdsf)->t.dga.fb_height = i*this->e.dga.fb_height;
		(*lpdsf)->s.lpitch = this->e.dga.fb_width*this->d.depth/8;
	}

	lpddsd->lPitch = (*lpdsf)->s.lpitch;

	(*lpdsf)->s.width = this->d.width;
	(*lpdsf)->s.height = this->d.height;
	(*lpdsf)->s.ddraw = this;
	(*lpdsf)->s.backbuffer = NULL;
	if (lpddsd->dwFlags & DDSD_BACKBUFFERCOUNT) {
		LPDIRECTDRAWSURFACE3	back;

		if (lpddsd->dwBackBufferCount>1)
			FIXME(ddraw,"urks, wants to have more than one backbuffer (%ld)!\n",lpddsd->dwBackBufferCount);

		(*lpdsf)->s.backbuffer = back = (LPDIRECTDRAWSURFACE3)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawSurface3));
		this->lpvtbl->fnAddRef(this);
		back->ref = 1;
		back->lpvtbl = (LPDIRECTDRAWSURFACE3_VTABLE)&dga_dds3vt;
		for (i=0;i<32;i++)
			if (!(this->e.dga.vpmask & (1<<i)))
				break;
		TRACE(ddraw,"using viewport %d for backbuffer\n",i);
		/* if i == 32 or maximum ... return error */
		this->e.dga.vpmask|=(1<<i);
		back->s.surface = this->e.dga.fb_addr+((i*this->e.dga.fb_height)*this->e.dga.fb_width*this->d.depth/8);
		back->t.dga.fb_height = i*this->e.dga.fb_height;

		back->s.width = this->d.width;
		back->s.height = this->d.height;
		back->s.ddraw = this;
		back->s.lpitch = this->e.dga.fb_width*this->d.depth/8;
		back->s.backbuffer = NULL; /* does not have a backbuffer, it is
					    * one! */
	}
	return 0;
#else /* defined(HAVE_LIBXXF86DGA) */
	return E_UNEXPECTED;
#endif /* defined(HAVE_LIBXXF86DGA) */
}

static XImage *create_ximage(LPDIRECTDRAW2 this, LPDIRECTDRAWSURFACE3 lpdsf) {
  XImage *img;

#ifdef HAVE_LIBXXSHM
  if (this->e.xlib.xshm_active) {
    img = TSXShmCreateImage(display,
			    DefaultVisualOfScreen(screen),
			    this->d.depth,
			    ZPixmap,
			    NULL,
			    &(lpdsf->t.xlib.shminfo),
			    lpdsf->s.width,
			    lpdsf->s.height);
    
    if (img == NULL)
      return NULL;

    lpdsf->t.xlib.shminfo.shmid = shmget( IPC_PRIVATE, img->bytes_per_line * img->height, IPC_CREAT|0777 );
    if (lpdsf->t.xlib.shminfo.shmid < 0) {
      TSXDestroyImage(img);
      return NULL;
    }

    lpdsf->t.xlib.shminfo.shmaddr = img->data = (char*)shmat(lpdsf->t.xlib.shminfo.shmid, 0, 0);
      
    if (img->data == (char *) -1) {
      TSXDestroyImage(img);
      shmctl(lpdsf->t.xlib.shminfo.shmid, IPC_RMID, 0);
      return NULL;
    }
    lpdsf->t.xlib.shminfo.readOnly = False;
      
    TSXShmAttach(display, &(lpdsf->t.xlib.shminfo));
    TSXSync(display, False);

    shmctl(lpdsf->t.xlib.shminfo.shmid, IPC_RMID, 0);

    lpdsf->s.surface = img->data;
  } else {
#endif
    /* Allocate surface memory */
    lpdsf->s.surface = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,lpdsf->s.width * lpdsf->s.height *this->d.depth/8);
    
    /* In this case, create an XImage */
    img =
      TSXCreateImage(display,
		     DefaultVisualOfScreen(screen),
		     this->d.depth,
		     ZPixmap,
		     0,
		     lpdsf->s.surface,
		     lpdsf->s.width,
		     lpdsf->s.height,
		     32,
		     lpdsf->s.width * (this->d.depth / 8)
		     );
    
#ifdef HAVE_LIBXXSHM
  }
#endif
  lpdsf->s.lpitch = img->bytes_per_line;
  
  return img;
}

static HRESULT WINAPI Xlib_IDirectDraw2_CreateSurface(
	LPDIRECTDRAW2 this,LPDDSURFACEDESC lpddsd,LPDIRECTDRAWSURFACE *lpdsf,IUnknown *lpunk
) {
	TRACE(ddraw, "(%p)->CreateSurface(%p,%p,%p)\n",
		     this,lpddsd,lpdsf,lpunk);

	if (TRACE_ON(ddraw)) {
		fprintf(stderr,"[w=%ld,h=%ld,flags ",lpddsd->dwWidth,lpddsd->dwHeight);
		_dump_DDSD(lpddsd->dwFlags);
		fprintf(stderr,"caps ");
		_dump_DDSCAPS(lpddsd->ddsCaps.dwCaps);
		fprintf(stderr,"]\n");
	}

	*lpdsf = (LPDIRECTDRAWSURFACE)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawSurface));

	this->lpvtbl->fnAddRef(this);
	(*lpdsf)->s.ddraw             = this;
	(*lpdsf)->ref                 = 1;
	(*lpdsf)->lpvtbl              = (LPDIRECTDRAWSURFACE_VTABLE)&xlib_dds3vt;

		if (!(lpddsd->dwFlags & DDSD_WIDTH))
			lpddsd->dwWidth	 = this->d.width;
		if (!(lpddsd->dwFlags & DDSD_HEIGHT))
			lpddsd->dwHeight = this->d.height;

	(*lpdsf)->s.width	= lpddsd->dwWidth;
	(*lpdsf)->s.height	= lpddsd->dwHeight;

  if ((lpddsd->dwFlags & DDSD_CAPS) && 
      (lpddsd->ddsCaps.dwCaps & DDSCAPS_OFFSCREENPLAIN)) {

    /* Allocate surface memory */
    (*lpdsf)->s.surface = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,lpddsd->dwWidth*lpddsd->dwHeight*this->d.depth/8);
    
    /* No XImage for a offscreen buffer */
    (*lpdsf)->t.xlib.image = NULL;
    (*lpdsf)->t.xlib.on_screen = FALSE;
    (*lpdsf)->s.lpitch = lpddsd->dwWidth * (this->d.depth / 8);
    
    TRACE(ddraw,"using system memory for a primary surface (%p)\n", *lpdsf);
  } else {
    XImage *img;
      
    TRACE(ddraw,"using standard XImage for a primary surface (%p)\n", *lpdsf);

    /* Create the XImage */
    img = create_ximage(this, (LPDIRECTDRAWSURFACE3) *lpdsf);
    if (img == NULL)
      return DDERR_OUTOFMEMORY;
    
    (*lpdsf)->t.xlib.image = img;
    (*lpdsf)->t.xlib.on_screen = TRUE;
    
    /* Check for backbuffers */
	if (lpddsd->dwFlags & DDSD_BACKBUFFERCOUNT) {
		LPDIRECTDRAWSURFACE3	back;
      XImage *img;

		if (lpddsd->dwBackBufferCount>1)
			FIXME(ddraw,"urks, wants to have more than one backbuffer (%ld)!\n",lpddsd->dwBackBufferCount);

      (*lpdsf)->s.backbuffer = back =
	(LPDIRECTDRAWSURFACE3)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawSurface3));

      TRACE(ddraw,"allocated back-buffer (%p)\n", back);
      
		this->lpvtbl->fnAddRef(this);
		back->s.ddraw = this;

		back->ref = 1;
		back->lpvtbl = (LPDIRECTDRAWSURFACE3_VTABLE)&xlib_dds3vt;

      back->s.width = lpddsd->dwWidth;
      back->s.height = lpddsd->dwHeight;

      /* Create the XImage */
      img = create_ximage(this, back);
      if (img == NULL)
	return DDERR_OUTOFMEMORY;
      back->t.xlib.image = img;
      
      back->t.xlib.on_screen = FALSE;
		back->s.backbuffer = NULL; /* does not have a backbuffer, it is
					    * one! */
	}
  }
  
	return 0;
}

static HRESULT WINAPI IDirectDraw2_DuplicateSurface(
	LPDIRECTDRAW2 this,LPDIRECTDRAWSURFACE src,LPDIRECTDRAWSURFACE *dst
) {
	FIXME(ddraw,"(%p)->(%p,%p) simply copies\n",this,src,dst);
	*dst = src; /* FIXME */
	return 0;
}

/* 
 * The Xlib Implementation tries to use the passed hwnd as drawing window,
 * even when the approbiate bitmasks are not specified.
 */
static HRESULT WINAPI IDirectDraw2_SetCooperativeLevel(
	LPDIRECTDRAW2 this,HWND32 hwnd,DWORD cooplevel
) {
	int	i;
	const struct {
		int	mask;
		char	*name;
	} flagmap[] = {
		FE(DDSCL_FULLSCREEN)
		FE(DDSCL_ALLOWREBOOT)
		FE(DDSCL_NOWINDOWCHANGES)
		FE(DDSCL_NORMAL)
		FE(DDSCL_ALLOWMODEX)
		FE(DDSCL_EXCLUSIVE)
		FE(DDSCL_SETFOCUSWINDOW)
		FE(DDSCL_SETDEVICEWINDOW)
		FE(DDSCL_CREATEDEVICEWINDOW)
	};

	FIXME(ddraw,"(%p)->(%08lx,%08lx)\n",this,(DWORD)hwnd,cooplevel);
	if(TRACE_ON(ddraw)){
	  dbg_decl_str(ddraw, 512);
	  for (i=0;i<sizeof(flagmap)/sizeof(flagmap[0]);i++)
	    if (flagmap[i].mask & cooplevel)
	      dsprintf(ddraw, "%s ", flagmap[i].name);
	  TRACE(ddraw,"	cooperative level %s\n", dbg_str(ddraw));
	}
        this->d.mainWindow = hwnd;
	return 0;
}

/* Small helper to either use the cooperative window or create a new 
 * one (for mouse and keyboard input) and drawing in the Xlib implementation.
 */
static void _common_IDirectDraw_SetDisplayMode(LPDIRECTDRAW this) {
	RECT32	rect;

	/* Do not destroy the application supplied cooperative window */
	if (this->d.window && this->d.window != this->d.mainWindow) {
		DestroyWindow32(this->d.window);
		this->d.window = 0;
	}
	/* Sanity check cooperative window before assigning it to drawing. */
	if (	IsWindow32(this->d.mainWindow) &&
		IsWindowVisible32(this->d.mainWindow)
	) {
		GetWindowRect32(this->d.mainWindow,&rect);
		if (((rect.right-rect.left) >= this->d.width)	&&
		    ((rect.bottom-rect.top) >= this->d.height)
		)
			this->d.window = this->d.mainWindow;
	}
	/* ... failed, create new one. */
	if (!this->d.window) {
	    this->d.window = CreateWindowEx32A(
		    0,
		    "WINE_DirectDraw",
		    "WINE_DirectDraw",
		    WS_VISIBLE|WS_SYSMENU|WS_THICKFRAME,
		    0,0,
		    this->d.width,
		    this->d.height,
		    0,
		    0,
		    0,
		    NULL
	    );
	    /*Store THIS with the window. We'll use it in the window procedure*/
	    SetWindowLong32A(this->d.window,ddrawXlibThisOffset,(LONG)this);
	    ShowWindow32(this->d.window,TRUE);
	    UpdateWindow32(this->d.window);
	}
}

static HRESULT WINAPI DGA_IDirectDraw_SetDisplayMode(
	LPDIRECTDRAW this,DWORD width,DWORD height,DWORD depth
) {
#ifdef HAVE_LIBXXF86DGA
	int	i,*depths,depcount;

	TRACE(ddraw, "(%p)->(%ld,%ld,%ld)\n", this, width, height, depth);

	depths = TSXListDepths(display,DefaultScreen(display),&depcount);
	for (i=0;i<depcount;i++)
		if (depths[i]==depth)
			break;
	TSXFree(depths);
	if (i==depcount) {/* not found */
		ERR(ddraw,"(w=%ld,h=%ld,d=%ld), unsupported depth!\n",width,height,depth);
		return DDERR_UNSUPPORTEDMODE;
	}
	if (this->d.width < width) {
		ERR(ddraw,"SetDisplayMode(w=%ld,h=%ld,d=%ld), width %ld exceeds framebuffer width %ld\n",width,height,depth,width,this->d.width);
		return DDERR_UNSUPPORTEDMODE;
	}
	this->d.width	= width;
	this->d.height	= height;
	this->d.depth	= depth;

	/* adjust fb_height, so we don't overlap */
	if (this->e.dga.fb_height < height)
		this->e.dga.fb_height = height;
	_common_IDirectDraw_SetDisplayMode(this);

	/* FIXME: this function OVERWRITES several signal handlers. 
	 * can we save them? and restore them later? In a way that
	 * it works for the library too?
	 */
	TSXF86DGADirectVideo(display,DefaultScreen(display),XF86DGADirectGraphics);
#ifdef DIABLO_HACK
	TSXF86DGASetViewPort(display,DefaultScreen(display),0,this->e.dga.fb_height);
#endif

#ifdef RESTORE_SIGNALS
	SIGNAL_InitEmulator();
#endif
	return 0;
#else /* defined(HAVE_LIBXXF86DGA) */
	return E_UNEXPECTED;
#endif /* defined(HAVE_LIBXXF86DGA) */
}

static HRESULT WINAPI Xlib_IDirectDraw_SetDisplayMode(
	LPDIRECTDRAW this,DWORD width,DWORD height,DWORD depth
) {
	int	i,*depths,depcount;
	char	buf[200];

	TRACE(ddraw, "(%p)->SetDisplayMode(%ld,%ld,%ld)\n",
		      this, width, height, depth);

	depths = TSXListDepths(display,DefaultScreen(display),&depcount);
	for (i=0;i<depcount;i++)
		if (depths[i]==depth)
			break;
	TSXFree(depths);
	if (i==depcount) {/* not found */
		sprintf(buf,"SetDisplayMode(w=%ld,h=%ld,d=%ld), unsupported depth!",width,height,depth);
		MessageBox32A(0,buf,"WINE DirectDraw",MB_OK|MB_ICONSTOP);
		return DDERR_UNSUPPORTEDMODE;
	}
	this->d.width	= width;
	this->d.height	= height;
	this->d.depth	= depth;

	_common_IDirectDraw_SetDisplayMode(this);

	this->e.xlib.paintable = 1;
        this->e.xlib.drawable  = WIN_FindWndPtr(this->d.window)->window;  
        /* We don't have a context for this window. Host off the desktop */
        if( !this->e.xlib.drawable )
           this->e.xlib.drawable = WIN_GetDesktop()->window;
	return 0;
}

static HRESULT WINAPI DGA_IDirectDraw2_GetCaps(
	LPDIRECTDRAW2 this,LPDDCAPS caps1,LPDDCAPS caps2
) {
#ifdef HAVE_LIBXXF86DGA
	TRACE(ddraw,"(%p)->GetCaps(%p,%p)\n",this,caps1,caps2);
	caps1->dwVidMemTotal = this->e.dga.fb_memsize;
	caps1->dwCaps = 0xffffffff&~(DDCAPS_BANKSWITCHED);		/* we can do anything */
	caps1->ddsCaps.dwCaps = 0xffffffff;	/* we can do anything */
	if (caps2) {
		caps2->dwVidMemTotal = this->e.dga.fb_memsize;
		caps2->dwCaps = 0xffffffff&~(DDCAPS_BANKSWITCHED);		/* we can do anything */
		caps2->ddsCaps.dwCaps = 0xffffffff;	/* we can do anything */
	}
	return 0;
#else /* defined(HAVE_LIBXXF86DGA) */
	return E_UNEXPECTED;
#endif /* defined(HAVE_LIBXXF86DGA) */
}

static HRESULT WINAPI Xlib_IDirectDraw2_GetCaps(
	LPDIRECTDRAW2 this,LPDDCAPS caps1,LPDDCAPS caps2
)  {
	TRACE(ddraw,"(%p)->GetCaps(%p,%p)\n",this,caps1,caps2);
	/* FIXME: Xlib */
	caps1->dwVidMemTotal = 2048*1024;
	caps1->dwCaps = 0xffffffff&~(DDCAPS_BANKSWITCHED|DDCAPS_GDI);
	caps1->ddsCaps.dwCaps = 0xffffffff;	/* we can do anything */
	if (caps2) {
		caps2->dwVidMemTotal = 2048*1024;
		caps2->dwCaps = 0xffffffff&~(DDCAPS_BANKSWITCHED|DDCAPS_GDI);
		caps2->ddsCaps.dwCaps = 0xffffffff;	/* we can do anything */
	}
	/* END FIXME: Xlib */
	return 0;
}

static HRESULT WINAPI IDirectDraw2_CreateClipper(
	LPDIRECTDRAW2 this,DWORD x,LPDIRECTDRAWCLIPPER *lpddclip,LPUNKNOWN lpunk
) {
	FIXME(ddraw,"(%p)->(%08lx,%p,%p),stub!\n",
		this,x,lpddclip,lpunk
	);
	*lpddclip = (LPDIRECTDRAWCLIPPER)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawClipper));
	(*lpddclip)->ref = 1;
	(*lpddclip)->lpvtbl = &ddclipvt;
	return 0;
}

static HRESULT WINAPI common_IDirectDraw2_CreatePalette(
	LPDIRECTDRAW2 this,DWORD x,LPPALETTEENTRY palent,LPDIRECTDRAWPALETTE *lpddpal,LPUNKNOWN lpunk
) {
	*lpddpal = (LPDIRECTDRAWPALETTE)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawPalette));
	if (*lpddpal == NULL) return E_OUTOFMEMORY;
	(*lpddpal)->ref = 1;
	(*lpddpal)->ddraw = (LPDIRECTDRAW)this;
	(*lpddpal)->installed = 0;
	if (this->d.depth<=8) {
		(*lpddpal)->cm = TSXCreateColormap(display,DefaultRootWindow(display),DefaultVisualOfScreen(screen),AllocAll);
	} else {
		/* we don't want palettes in hicolor or truecolor */
		(*lpddpal)->cm = 0;
	}
	return 0;
}

static HRESULT WINAPI DGA_IDirectDraw2_CreatePalette(
	LPDIRECTDRAW2 this,DWORD x,LPPALETTEENTRY palent,LPDIRECTDRAWPALETTE *lpddpal,LPUNKNOWN lpunk
) {
	HRESULT res;
	TRACE(ddraw,"(%p)->(%08lx,%p,%p,%p)\n",this,x,palent,lpddpal,lpunk);
	res = common_IDirectDraw2_CreatePalette(this,x,palent,lpddpal,lpunk);
	if (res != 0) return res;
	(*lpddpal)->lpvtbl = &dga_ddpalvt;
	return 0;
}

static HRESULT WINAPI Xlib_IDirectDraw2_CreatePalette(
	LPDIRECTDRAW2 this,DWORD x,LPPALETTEENTRY palent,LPDIRECTDRAWPALETTE *lpddpal,LPUNKNOWN lpunk
) {
	TRACE(ddraw,"(%p)->(%08lx,%p,%p,%p)\n",this,x,palent,lpddpal,lpunk);
	*lpddpal = (LPDIRECTDRAWPALETTE)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawPalette));
	if (*lpddpal == NULL) return E_OUTOFMEMORY;
	(*lpddpal)->ref = 1;
	(*lpddpal)->installed = 0;

	(*lpddpal)->ddraw = (LPDIRECTDRAW)this;
        this->lpvtbl->fnAddRef(this);

	if (this->d.depth<=8) {
		(*lpddpal)->cm = TSXCreateColormap(display,this->e.xlib.drawable,DefaultVisualOfScreen(screen),AllocAll);
		/* FIXME: this is not correct, when using -managed */
		TSXInstallColormap(display,(*lpddpal)->cm);
	} 
        else
        {
		/* we don't want palettes in hicolor or truecolor */
		(*lpddpal)->cm = 0;
        }

	(*lpddpal)->lpvtbl = &xlib_ddpalvt;
	return 0;
}

static HRESULT WINAPI DGA_IDirectDraw2_RestoreDisplayMode(LPDIRECTDRAW2 this) {
#ifdef HAVE_LIBXXF86DGA
	TRACE(ddraw, "(%p)->()\n",this);
	Sleep(1000);
	TSXF86DGADirectVideo(display,DefaultScreen(display),0);
#ifdef RESTORE_SIGNALS
	SIGNAL_InitEmulator();
#endif
	return 0;
#else /* defined(HAVE_LIBXXF86DGA) */
	return E_UNEXPECTED;
#endif
}

static HRESULT WINAPI Xlib_IDirectDraw2_RestoreDisplayMode(LPDIRECTDRAW2 this) {
	TRACE(ddraw, "(%p)->RestoreDisplayMode()\n", this);
	Sleep(1000);
	return 0;
}

static HRESULT WINAPI IDirectDraw2_WaitForVerticalBlank(
	LPDIRECTDRAW2 this,DWORD x,HANDLE32 h
) {
	TRACE(ddraw,"(%p)->(0x%08lx,0x%08x)\n",this,x,h);
	return 0;
}

static ULONG WINAPI IDirectDraw2_AddRef(LPDIRECTDRAW2 this) {
        TRACE( ddraw, "(%p)->() incrementing from %lu.\n", this, this->ref );

	return ++(this->ref);
}

static ULONG WINAPI DGA_IDirectDraw2_Release(LPDIRECTDRAW2 this) {
        TRACE( ddraw, "(%p)->() decrementing from %lu.\n", this, this->ref );

#ifdef HAVE_LIBXXF86DGA
	if (!--(this->ref)) {
		TSXF86DGADirectVideo(display,DefaultScreen(display),0);
#ifdef RESTORE_SIGNALS
		SIGNAL_InitEmulator();
#endif
		HeapFree(GetProcessHeap(),0,this);
		return 0;
	}
#endif /* defined(HAVE_LIBXXF86DGA) */
	return this->ref;
}

static ULONG WINAPI Xlib_IDirectDraw2_Release(LPDIRECTDRAW2 this) {
        TRACE( ddraw, "(%p)->() decrementing from %lu.\n", this, this->ref );

	if (!--(this->ref)) {
		HeapFree(GetProcessHeap(),0,this);
		return 0;
	}
	/* FIXME: destroy window ... */
	return this->ref;
}

static HRESULT WINAPI DGA_IDirectDraw2_QueryInterface(
	LPDIRECTDRAW2 this,REFIID refiid,LPVOID *obj
) {
	char    xrefiid[50];

	WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
	TRACE(ddraw,"(%p)->(%s,%p)\n",this,xrefiid,obj);
	if (!memcmp(&IID_IUnknown,refiid,sizeof(IID_IUnknown))) {
		*obj = this;
		this->lpvtbl->fnAddRef(this);
		return 0;
	}
	if (!memcmp(&IID_IDirectDraw,refiid,sizeof(IID_IDirectDraw))) {
		this->lpvtbl = (LPDIRECTDRAW2_VTABLE)&dga_ddvt;
		this->lpvtbl->fnAddRef(this);
		*obj = this;
		return 0;
	}
	if (!memcmp(&IID_IDirectDraw2,refiid,sizeof(IID_IDirectDraw2))) {
		this->lpvtbl = (LPDIRECTDRAW2_VTABLE)&dga_dd2vt;
		this->lpvtbl->fnAddRef(this);
		*obj = this;
		return 0;
	}
	if (!memcmp(&IID_IDirect3D,refiid,sizeof(IID_IDirect3D))) {
		LPDIRECT3D	d3d;

		d3d = HeapAlloc(GetProcessHeap(),0,sizeof(*d3d));
		d3d->ref = 1;
		d3d->ddraw = (LPDIRECTDRAW)this;
		this->lpvtbl->fnAddRef(this);
		d3d->lpvtbl = &d3dvt;
		*obj = d3d;
		return 0;
	}
	if (!memcmp(&IID_IDirect3D2,refiid,sizeof(IID_IDirect3D))) {
		LPDIRECT3D2	d3d;

		d3d = HeapAlloc(GetProcessHeap(),0,sizeof(*d3d));
		d3d->ref = 1;
		d3d->ddraw = (LPDIRECTDRAW)this;
		this->lpvtbl->fnAddRef(this);
		d3d->lpvtbl = &d3d2vt;
		*obj = d3d;
		return 0;
	}
	WARN(ddraw,"(%p):interface for IID %s _NOT_ found!\n",this,xrefiid);
        return OLE_E_ENUM_NOMORE;
}

static HRESULT WINAPI Xlib_IDirectDraw2_QueryInterface(
	LPDIRECTDRAW2 this,REFIID refiid,LPVOID *obj
) {
	char    xrefiid[50];

	WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
	TRACE(ddraw,"(%p)->(%s,%p)\n",this,xrefiid,obj);
	if (!memcmp(&IID_IUnknown,refiid,sizeof(IID_IUnknown))) {
		*obj = this;
		this->lpvtbl->fnAddRef(this);
		return 0;
	}
	if (!memcmp(&IID_IDirectDraw,refiid,sizeof(IID_IDirectDraw))) {
		this->lpvtbl = (LPDIRECTDRAW2_VTABLE)&xlib_ddvt;
		this->lpvtbl->fnAddRef(this);
		*obj = this;
		return 0;
	}
	if (!memcmp(&IID_IDirectDraw2,refiid,sizeof(IID_IDirectDraw2))) {
		this->lpvtbl = (LPDIRECTDRAW2_VTABLE)&xlib_dd2vt;
		this->lpvtbl->fnAddRef(this);
		*obj = this;
		return 0;
	}
	if (!memcmp(&IID_IDirect3D,refiid,sizeof(IID_IDirect3D))) {
		LPDIRECT3D	d3d;

		d3d = HeapAlloc(GetProcessHeap(),0,sizeof(*d3d));
		d3d->ref = 1;
		d3d->ddraw = (LPDIRECTDRAW)this;
		this->lpvtbl->fnAddRef(this);
		d3d->lpvtbl = &d3dvt;
		*obj = d3d;
		return 0;
	}
	if (!memcmp(&IID_IDirect3D2,refiid,sizeof(IID_IDirect3D))) {
		LPDIRECT3D2	d3d;

		d3d = HeapAlloc(GetProcessHeap(),0,sizeof(*d3d));
		d3d->ref = 1;
		d3d->ddraw = (LPDIRECTDRAW)this;
		this->lpvtbl->fnAddRef(this);
		d3d->lpvtbl = &d3d2vt;
		*obj = d3d;
		return 0;
	}
	WARN(ddraw,"(%p):interface for IID %s _NOT_ found!\n",this,xrefiid);
        return OLE_E_ENUM_NOMORE;
}

static HRESULT WINAPI IDirectDraw2_GetVerticalBlankStatus(
	LPDIRECTDRAW2 this,BOOL32 *status
) {
        TRACE(ddraw,"(%p)->(%p)\n",this,status);
	*status = TRUE;
	return 0;
}

static HRESULT WINAPI IDirectDraw2_EnumDisplayModes(
	LPDIRECTDRAW2 this,DWORD dwFlags,LPDDSURFACEDESC lpddsfd,LPVOID context,LPDDENUMMODESCALLBACK modescb
) {
	DDSURFACEDESC	ddsfd;
	static struct {
		int w,h;
	} modes[5] = { /* some of the usual modes */
		{512,384},
		{640,400},
		{640,480},
		{800,600},
		{1024,768},
	};
	static int depths[4] = {8,16,24,32};
	int	i,j;

	TRACE(ddraw,"(%p)->(0x%08lx,%p,%p,%p)\n",this,dwFlags,lpddsfd,context,modescb);
	ddsfd.dwSize = sizeof(ddsfd);
	ddsfd.dwFlags = DDSD_HEIGHT|DDSD_WIDTH|DDSD_BACKBUFFERCOUNT|DDSD_PIXELFORMAT|DDSD_CAPS;
	if (dwFlags & DDEDM_REFRESHRATES) {
		ddsfd.dwFlags |= DDSD_REFRESHRATE;
		ddsfd.x.dwRefreshRate = 60;
	}

	for (i=0;i<sizeof(depths)/sizeof(depths[0]);i++) {
		ddsfd.dwBackBufferCount = 1;
		ddsfd.ddpfPixelFormat.dwFourCC	= 0;
		ddsfd.ddpfPixelFormat.dwFlags 	= DDPF_RGB;
		ddsfd.ddpfPixelFormat.x.dwRGBBitCount	= depths[i];
		/* FIXME: those masks would have to be set in depth > 8 */
		if (depths[i]==8) {
		ddsfd.ddpfPixelFormat.y.dwRBitMask  	= 0;
		ddsfd.ddpfPixelFormat.z.dwGBitMask  	= 0;
		ddsfd.ddpfPixelFormat.xx.dwBBitMask 	= 0;
		ddsfd.ddpfPixelFormat.xy.dwRGBAlphaBitMask= 0;
			ddsfd.ddsCaps.dwCaps=DDSCAPS_PALETTE;
			ddsfd.ddpfPixelFormat.dwFlags|=DDPF_PALETTEINDEXED8;
		} else {
		  ddsfd.ddpfPixelFormat.xy.dwRGBAlphaBitMask= 0;
		  
		  /* FIXME: We should query those from X itself */
		  switch (depths[i]) {
		  case 16:
		    ddsfd.ddpfPixelFormat.y.dwRBitMask = 0x000f;
		    ddsfd.ddpfPixelFormat.z.dwGBitMask = 0x00f0;
		    ddsfd.ddpfPixelFormat.xx.dwBBitMask= 0x0f00;
		    break;
		  case 24:
		    ddsfd.ddpfPixelFormat.y.dwRBitMask = 0x000000ff;
		    ddsfd.ddpfPixelFormat.z.dwGBitMask = 0x0000ff00;
		    ddsfd.ddpfPixelFormat.xx.dwBBitMask= 0x00ff0000;
		    break;
		  case 32:
		    ddsfd.ddpfPixelFormat.y.dwRBitMask = 0x000000ff;
		    ddsfd.ddpfPixelFormat.z.dwGBitMask = 0x0000ff00;
		    ddsfd.ddpfPixelFormat.xx.dwBBitMask= 0x00ff0000;
		    break;
		  }
		}

		ddsfd.dwWidth = screenWidth;
		ddsfd.dwHeight = screenHeight;
		TRACE(ddraw," enumerating (%ldx%ldx%d)\n",ddsfd.dwWidth,ddsfd.dwHeight,depths[i]);
		if (!modescb(&ddsfd,context)) return 0;

		for (j=0;j<sizeof(modes)/sizeof(modes[0]);j++) {
			ddsfd.dwWidth	= modes[j].w;
			ddsfd.dwHeight	= modes[j].h;
			TRACE(ddraw," enumerating (%ldx%ldx%d)\n",ddsfd.dwWidth,ddsfd.dwHeight,depths[i]);
			if (!modescb(&ddsfd,context)) return 0;
		}

		if (!(dwFlags & DDEDM_STANDARDVGAMODES)) {
			/* modeX is not standard VGA */

			ddsfd.dwHeight = 200;
			ddsfd.dwWidth = 320;
			TRACE(ddraw," enumerating (320x200x%d)\n",depths[i]);
			if (!modescb(&ddsfd,context)) return 0;
		}
	}
	return DD_OK;
}

static HRESULT WINAPI DGA_IDirectDraw2_GetDisplayMode(
	LPDIRECTDRAW2 this,LPDDSURFACEDESC lpddsfd
) {
#ifdef HAVE_LIBXXF86DGA
	TRACE(ddraw,"(%p)->(%p)\n",this,lpddsfd);
	lpddsfd->dwFlags = DDSD_HEIGHT|DDSD_WIDTH|DDSD_PITCH|DDSD_BACKBUFFERCOUNT|DDSD_PIXELFORMAT|DDSD_CAPS;
	lpddsfd->dwHeight = screenHeight;
	lpddsfd->dwWidth = screenWidth;
	lpddsfd->lPitch = this->e.dga.fb_width*this->d.depth/8;
	lpddsfd->dwBackBufferCount = 1;
	lpddsfd->x.dwRefreshRate = 60;
	lpddsfd->ddsCaps.dwCaps = DDSCAPS_PALETTE;
	_getpixelformat(this,&(lpddsfd->ddpfPixelFormat));
	return DD_OK;
#else /* defined(HAVE_LIBXXF86DGA) */
	return E_UNEXPECTED;
#endif /* defined(HAVE_LIBXXF86DGA) */
}

static HRESULT WINAPI Xlib_IDirectDraw2_GetDisplayMode(
	LPDIRECTDRAW2 this,LPDDSURFACEDESC lpddsfd
) {
	TRACE(ddraw,"(%p)->GetDisplayMode(%p)\n",this,lpddsfd);
	lpddsfd->dwFlags = DDSD_HEIGHT|DDSD_WIDTH|DDSD_PITCH|DDSD_BACKBUFFERCOUNT|DDSD_PIXELFORMAT|DDSD_CAPS;
	lpddsfd->dwHeight = screenHeight;
	lpddsfd->dwWidth = screenWidth;
	/* POOLE FIXME: Xlib */
	lpddsfd->lPitch = this->e.dga.fb_width*this->d.depth/8;
	/* END FIXME: Xlib */
	lpddsfd->dwBackBufferCount = 1;
	lpddsfd->x.dwRefreshRate = 60;
	lpddsfd->ddsCaps.dwCaps = DDSCAPS_PALETTE;
	_getpixelformat(this,&(lpddsfd->ddpfPixelFormat));
	return DD_OK;
}

static HRESULT WINAPI IDirectDraw2_FlipToGDISurface(LPDIRECTDRAW2 this) {
	TRACE(ddraw,"(%p)->()\n",this);
	return DD_OK;
}

static HRESULT WINAPI IDirectDraw2_GetMonitorFrequency(
	LPDIRECTDRAW2 this,LPDWORD freq
) {
	FIXME(ddraw,"(%p)->(%p) returns 60 Hz always\n",this,freq);
	*freq = 60*100; /* 60 Hz */
	return 0;
}

/* what can we directly decompress? */
static HRESULT WINAPI IDirectDraw2_GetFourCCCodes(
	LPDIRECTDRAW2 this,LPDWORD x,LPDWORD y
) {
	FIXME(ddraw,"(%p,%p,%p), stub\n",this,x,y);
	return 0;
}

static HRESULT WINAPI IDirectDraw2_EnumSurfaces(
	LPDIRECTDRAW2 this,DWORD x,LPDDSURFACEDESC ddsfd,LPVOID context,LPDDENUMSURFACESCALLBACK ddsfcb
) {
	FIXME(ddraw,"(%p)->(0x%08lx,%p,%p,%p),stub!\n",this,x,ddsfd,context,ddsfcb);
	return 0;
}

static HRESULT WINAPI IDirectDraw2_Compact(
          LPDIRECTDRAW2 this )
{
  FIXME(ddraw,"(%p)->()\n", this );
 
  return DD_OK;
}


/* Note: Hack so we can reuse the old functions without compiler warnings */
#ifdef __GNUC__
# define XCAST(fun)	(typeof(dga_ddvt.fn##fun))
#else
# define XCAST(fun)	(void*)
#endif

static struct IDirectDraw_VTable dga_ddvt = {
	XCAST(QueryInterface)DGA_IDirectDraw2_QueryInterface,
	XCAST(AddRef)IDirectDraw2_AddRef,
	XCAST(Release)DGA_IDirectDraw2_Release,
	XCAST(Compact)IDirectDraw2_Compact,
	XCAST(CreateClipper)IDirectDraw2_CreateClipper,
	XCAST(CreatePalette)DGA_IDirectDraw2_CreatePalette,
	XCAST(CreateSurface)DGA_IDirectDraw2_CreateSurface,
	XCAST(DuplicateSurface)IDirectDraw2_DuplicateSurface,
	XCAST(EnumDisplayModes)IDirectDraw2_EnumDisplayModes,
	XCAST(EnumSurfaces)IDirectDraw2_EnumSurfaces,
	XCAST(FlipToGDISurface)IDirectDraw2_FlipToGDISurface,
	XCAST(GetCaps)DGA_IDirectDraw2_GetCaps,
	XCAST(GetDisplayMode)DGA_IDirectDraw2_GetDisplayMode,
	XCAST(GetFourCCCodes)IDirectDraw2_GetFourCCCodes,
	XCAST(GetGDISurface)15,
	XCAST(GetMonitorFrequency)IDirectDraw2_GetMonitorFrequency,
	XCAST(GetScanLine)17,
	XCAST(GetVerticalBlankStatus)IDirectDraw2_GetVerticalBlankStatus,
	XCAST(Initialize)19,
	XCAST(RestoreDisplayMode)DGA_IDirectDraw2_RestoreDisplayMode,
	XCAST(SetCooperativeLevel)IDirectDraw2_SetCooperativeLevel,
	DGA_IDirectDraw_SetDisplayMode,
	XCAST(WaitForVerticalBlank)IDirectDraw2_WaitForVerticalBlank,
};

static struct IDirectDraw_VTable xlib_ddvt = {
	XCAST(QueryInterface)Xlib_IDirectDraw2_QueryInterface,
	XCAST(AddRef)IDirectDraw2_AddRef,
	XCAST(Release)Xlib_IDirectDraw2_Release,
	XCAST(Compact)IDirectDraw2_Compact,
	XCAST(CreateClipper)IDirectDraw2_CreateClipper,
	XCAST(CreatePalette)Xlib_IDirectDraw2_CreatePalette,
	XCAST(CreateSurface)Xlib_IDirectDraw2_CreateSurface,
	XCAST(DuplicateSurface)IDirectDraw2_DuplicateSurface,
	XCAST(EnumDisplayModes)IDirectDraw2_EnumDisplayModes,
	XCAST(EnumSurfaces)IDirectDraw2_EnumSurfaces,
	XCAST(FlipToGDISurface)IDirectDraw2_FlipToGDISurface,
	XCAST(GetCaps)Xlib_IDirectDraw2_GetCaps,
	XCAST(GetDisplayMode)Xlib_IDirectDraw2_GetDisplayMode,
	XCAST(GetFourCCCodes)IDirectDraw2_GetFourCCCodes,
	XCAST(GetGDISurface)15,
	XCAST(GetMonitorFrequency)IDirectDraw2_GetMonitorFrequency,
	XCAST(GetScanLine)17,
	XCAST(GetVerticalBlankStatus)IDirectDraw2_GetVerticalBlankStatus,
	XCAST(Initialize)19,
	XCAST(RestoreDisplayMode)Xlib_IDirectDraw2_RestoreDisplayMode,
	XCAST(SetCooperativeLevel)IDirectDraw2_SetCooperativeLevel,
	Xlib_IDirectDraw_SetDisplayMode,
	XCAST(WaitForVerticalBlank)IDirectDraw2_WaitForVerticalBlank,
};

/*****************************************************************************
 * 	IDirectDraw2
 *
 */


static HRESULT WINAPI DGA_IDirectDraw2_SetDisplayMode(
	LPDIRECTDRAW2 this,DWORD width,DWORD height,DWORD depth,DWORD xx,DWORD yy
) {
	return DGA_IDirectDraw_SetDisplayMode((LPDIRECTDRAW)this,width,height,depth);
}

static HRESULT WINAPI Xlib_IDirectDraw2_SetDisplayMode(
	LPDIRECTDRAW2 this,DWORD width,DWORD height,DWORD depth,DWORD xx,DWORD yy
) {
	return Xlib_IDirectDraw_SetDisplayMode((LPDIRECTDRAW)this,width,height,depth);
}

static HRESULT WINAPI DGA_IDirectDraw2_GetAvailableVidMem(
	LPDIRECTDRAW2 this,LPDDSCAPS ddscaps,LPDWORD total,LPDWORD free
) {
	TRACE(ddraw,"(%p)->(%p,%p,%p)\n",
		this,ddscaps,total,free
	);
	if (total) *total = this->e.dga.fb_memsize * 1024;
	if (free) *free = this->e.dga.fb_memsize * 1024;
	return 0;
}

static HRESULT WINAPI Xlib_IDirectDraw2_GetAvailableVidMem(
	LPDIRECTDRAW2 this,LPDDSCAPS ddscaps,LPDWORD total,LPDWORD free
) {
	TRACE(ddraw,"(%p)->(%p,%p,%p)\n",
		this,ddscaps,total,free
	);
	if (total) *total = 2048 * 1024;
	if (free) *free = 2048 * 1024;
	return 0;
}

static IDirectDraw2_VTable dga_dd2vt = {
	DGA_IDirectDraw2_QueryInterface,
	IDirectDraw2_AddRef,
	DGA_IDirectDraw2_Release,
	IDirectDraw2_Compact,
	IDirectDraw2_CreateClipper,
	DGA_IDirectDraw2_CreatePalette,
	DGA_IDirectDraw2_CreateSurface,
	(void*)8,
	IDirectDraw2_EnumDisplayModes,
	IDirectDraw2_EnumSurfaces,
	IDirectDraw2_FlipToGDISurface,
	DGA_IDirectDraw2_GetCaps,
	DGA_IDirectDraw2_GetDisplayMode,
	IDirectDraw2_GetFourCCCodes,
	(void*)15,
	IDirectDraw2_GetMonitorFrequency,
	(void*)17,
	IDirectDraw2_GetVerticalBlankStatus,
	(void*)19,
	DGA_IDirectDraw2_RestoreDisplayMode,
	IDirectDraw2_SetCooperativeLevel,
	DGA_IDirectDraw2_SetDisplayMode,
	IDirectDraw2_WaitForVerticalBlank,
	DGA_IDirectDraw2_GetAvailableVidMem
};

static struct IDirectDraw2_VTable xlib_dd2vt = {
	Xlib_IDirectDraw2_QueryInterface,
	IDirectDraw2_AddRef,
	Xlib_IDirectDraw2_Release,
	IDirectDraw2_Compact,
	IDirectDraw2_CreateClipper,
	Xlib_IDirectDraw2_CreatePalette,
	Xlib_IDirectDraw2_CreateSurface,
	(void*)8,
	IDirectDraw2_EnumDisplayModes,
	IDirectDraw2_EnumSurfaces,
	IDirectDraw2_FlipToGDISurface,
	Xlib_IDirectDraw2_GetCaps,
	Xlib_IDirectDraw2_GetDisplayMode,
	IDirectDraw2_GetFourCCCodes,
	(void*)15,
	IDirectDraw2_GetMonitorFrequency,
	(void*)17,
	IDirectDraw2_GetVerticalBlankStatus,
	(void*)19,
	Xlib_IDirectDraw2_RestoreDisplayMode,
	IDirectDraw2_SetCooperativeLevel,
	Xlib_IDirectDraw2_SetDisplayMode,
	IDirectDraw2_WaitForVerticalBlank,
	Xlib_IDirectDraw2_GetAvailableVidMem	
};

/******************************************************************************
 * 				DirectDrawCreate
 */

LRESULT WINAPI Xlib_DDWndProc(HWND32 hwnd,UINT32 msg,WPARAM32 wParam,LPARAM lParam)
{
   LRESULT ret;
   LPDIRECTDRAW ddraw = NULL;
   DWORD lastError;

   /* FIXME(ddraw,"(0x%04x,%s,0x%08lx,0x%08lx),stub!\n",(int)hwnd,SPY_GetMsgName(msg),(long)wParam,(long)lParam); */

   SetLastError( ERROR_SUCCESS );
   ddraw  = (LPDIRECTDRAW)GetWindowLong32A( hwnd, ddrawXlibThisOffset );
   if( (!ddraw)  &&
       ( ( lastError = GetLastError() ) != ERROR_SUCCESS )
     ) 
   {
     ERR( ddraw, "Unable to retrieve this ptr from window. Error %08lx\n", lastError );
   }

   if( ddraw )
   {
      /* Perform any special direct draw functions */
      if (msg==WM_PAINT)
        ddraw->e.xlib.paintable = 1;

      /* Now let the application deal with the rest of this */
      if( ddraw->d.mainWindow )
      {
    
        /* Don't think that we actually need to call this but... 
           might as well be on the safe side of things... */

	/* I changed hwnd to ddraw->d.mainWindow as I did not see why
	   it should be the procedures of our fake window that gets called
	   instead of those of the window provided by the application.
	   And with this patch, mouse clicks work with Monkey Island III
	     - Lionel */
	ret = DefWindowProc32A( ddraw->d.mainWindow, msg, wParam, lParam );

        if( !ret )
        {
          /* We didn't handle the message - give it to the application */
	  if (ddraw && ddraw->d.mainWindow && WIN_FindWndPtr(ddraw->d.mainWindow)) {
          	ret = CallWindowProc32A( WIN_FindWndPtr( ddraw->d.mainWindow )->winproc,
               	                   ddraw->d.mainWindow, msg, wParam, lParam );
	  }
        }
        
      } else {
        ret = DefWindowProc32A(hwnd, msg, wParam, lParam );
      } 

    } else {
	ret = DefWindowProc32A(hwnd,msg,wParam,lParam);
    }

    return ret;
}

HRESULT WINAPI DGA_DirectDrawCreate( LPDIRECTDRAW *lplpDD, LPUNKNOWN pUnkOuter) {
#ifdef HAVE_LIBXXF86DGA
	int	memsize,banksize,width,major,minor,flags,height;
	char	*addr;
	int     fd;

        /* Must be able to access /dev/mem for DGA extensions to work, root is not neccessary. --stephenc */
        if ((fd = open("/dev/mem", O_RDWR)) != -1)
	  close(fd);
	
	if (fd  == -1) {
	  MSG("Must be able to access /dev/mem to use XF86DGA!\n");
	  MessageBox32A(0,"Using the XF86DGA extension requires access to /dev/mem.","WINE DirectDraw",MB_OK|MB_ICONSTOP);
	  return E_UNEXPECTED;
	}
	if (!DDRAW_DGA_Available()) {
	        TRACE(ddraw,"No XF86DGA detected.\n");
	        return DDERR_GENERIC;
	}
	*lplpDD = (LPDIRECTDRAW)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDraw));
	(*lplpDD)->lpvtbl = &dga_ddvt;
	(*lplpDD)->ref = 1;
	TSXF86DGAQueryVersion(display,&major,&minor);
	TRACE(ddraw,"XF86DGA is version %d.%d\n",major,minor);
	TSXF86DGAQueryDirectVideo(display,DefaultScreen(display),&flags);
	if (!(flags & XF86DGADirectPresent))
		MSG("direct video is NOT PRESENT.\n");
	TSXF86DGAGetVideo(display,DefaultScreen(display),&addr,&width,&banksize,&memsize);
	TRACE(ddraw,"video framebuffer: begin %p, width %d,banksize %d,memsize %d\n",
		addr,width,banksize,memsize
	);
	(*lplpDD)->e.dga.fb_width = width;
	(*lplpDD)->d.width = width;
	(*lplpDD)->e.dga.fb_addr = addr;
	(*lplpDD)->e.dga.fb_memsize = memsize;
	(*lplpDD)->e.dga.fb_banksize = banksize;

	TSXF86DGAGetViewPortSize(display,DefaultScreen(display),&width,&height);
	TSXF86DGASetViewPort(display,DefaultScreen(display),0,0);
	(*lplpDD)->e.dga.fb_height = screenHeight;
#ifdef DIABLO_HACK
	(*lplpDD)->e.dga.vpmask = 1;
#else
	(*lplpDD)->e.dga.vpmask = 0;
#endif

	/* just assume the default depth is the DGA depth too */
	(*lplpDD)->d.depth = DefaultDepthOfScreen(screen);
#ifdef RESTORE_SIGNALS
	SIGNAL_InitEmulator();
#endif

	return 0;
#else /* defined(HAVE_LIBXXF86DGA) */
	return DDERR_INVALIDDIRECTDRAWGUID;
#endif /* defined(HAVE_LIBXXF86DGA) */
}

BOOL32
DDRAW_XSHM_Available()
   {
#ifdef HAVE_LIBXXSHM
  if (TSXShmQueryExtension(display))
      {
      int major, minor;
      Bool shpix;

      if (TSXShmQueryVersion(display, &major, &minor, &shpix))
	return 1;
      else
	return 0;
    }
    else
    return 0;
#else
  return 0;
#endif
}

HRESULT WINAPI Xlib_DirectDrawCreate( LPDIRECTDRAW *lplpDD, LPUNKNOWN pUnkOuter) {

	*lplpDD = (LPDIRECTDRAW)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDraw));
	(*lplpDD)->lpvtbl = &xlib_ddvt;
	(*lplpDD)->ref = 1;
	(*lplpDD)->e.xlib.drawable = 0; /* in SetDisplayMode */

	(*lplpDD)->d.depth = DefaultDepthOfScreen(screen);
	(*lplpDD)->d.height = screenHeight;
	(*lplpDD)->d.width = screenWidth;

#ifdef HAVE_LIBXXSHM
	/* Test if XShm is available.
	   As XShm is not ready yet for 'prime-time', it is disabled for now */
	if (((*lplpDD)->e.xlib.xshm_active = 0 /* DDRAW_XSHM_Available() */))
	  TRACE(ddraw, "Using XShm extesion.\n");
#endif
	
	return 0;
}

HRESULT WINAPI DirectDrawCreate( LPGUID lpGUID, LPDIRECTDRAW *lplpDD, LPUNKNOWN pUnkOuter ) {
	char	xclsid[50];
	WNDCLASS32A	wc;
        WND*            pParentWindow; 
	HRESULT ret;

	if (HIWORD(lpGUID))
		WINE_StringFromCLSID(lpGUID,xclsid);
	else {
		sprintf(xclsid,"<guid-%0x08x>",(int)lpGUID);
		lpGUID = NULL;
	}

	TRACE(ddraw,"(%s,%p,%p)\n",xclsid,lplpDD,pUnkOuter);

	if (!lpGUID) {
		/* if they didn't request a particular interface, use the best
		 * supported one */
		if (DDRAW_DGA_Available())
			lpGUID = &DGA_DirectDraw_GUID;
		else
			lpGUID = &XLIB_DirectDraw_GUID;
	}

	wc.style	= CS_GLOBALCLASS;
	wc.lpfnWndProc	= Xlib_DDWndProc;
	wc.cbClsExtra	= 0;
	wc.cbWndExtra	= /* Defines extra mem for window. This is used for storing this */
                          sizeof( LPDIRECTDRAW ); /*  ddrawXlibThisOffset */

        /* We can be a child of the desktop since we're really important */
        pParentWindow   = WIN_GetDesktop();
	wc.hInstance	= pParentWindow ? pParentWindow->hwndSelf : 0;
        wc.hInstance    = 0; 

	wc.hIcon	= 0;
	wc.hCursor	= (HCURSOR32)IDC_ARROW32A;
	wc.hbrBackground= NULL_BRUSH;
	wc.lpszMenuName	= 0;
	wc.lpszClassName= "WINE_DirectDraw";
	RegisterClass32A(&wc);

	if (!memcmp(lpGUID, &DGA_DirectDraw_GUID, sizeof(GUID)))
		ret = DGA_DirectDrawCreate(lplpDD, pUnkOuter);
	else if (!memcmp(lpGUID, &XLIB_DirectDraw_GUID, sizeof(GUID)))
		ret = Xlib_DirectDrawCreate(lplpDD, pUnkOuter);
	else
	  goto err;

	(*lplpDD)->d.winclass = RegisterClass32A(&wc);
	return ret;

      err:
	fprintf(stderr,"DirectDrawCreate(%s,%p,%p): did not recognize requested GUID\n",xclsid,lplpDD,pUnkOuter);
	return DDERR_INVALIDDIRECTDRAWGUID;
}