CLIPOBJ* FASTCALL
IntEngCreateClipRegion(ULONG count, PRECTL pRect, PRECTL rcBounds)
{
CLIPGDI *Clip;
if(count > 1)
{
RECTL *dest;
Clip = EngAllocMem(0, sizeof(CLIPGDI) + ((count - 1) * sizeof(RECTL)), GDITAG_CLIPOBJ);
if(Clip != NULL)
{
Clip->EnumRects.c = count;
Clip->EnumOrder = CD_ANY;
for(dest = Clip->EnumRects.arcl;count > 0; count--, dest++, pRect++)
{
*dest = *pRect;
}
Clip->ClipObj.iDComplexity = DC_COMPLEX;
Clip->ClipObj.iFComplexity = ((Clip->EnumRects.c <= 4) ? FC_RECT4 : FC_COMPLEX);
Clip->ClipObj.iMode = TC_RECTANGLES;
Clip->ClipObj.rclBounds = *rcBounds;
return GDIToObj(Clip, CLIP);
}
}
else
{
Clip = EngAllocMem(0, sizeof(CLIPGDI), GDITAG_CLIPOBJ);
if(Clip != NULL)
{
Clip->EnumRects.c = 1;
Clip->EnumOrder = CD_ANY;
Clip->EnumRects.arcl[0] = *rcBounds;
Clip->ClipObj.iDComplexity = (((rcBounds->top == rcBounds->bottom) &&
(rcBounds->left == rcBounds->right))
? DC_TRIVIAL : DC_RECT);
Clip->ClipObj.iFComplexity = FC_RECT;
Clip->ClipObj.iMode = TC_RECTANGLES;
Clip->ClipObj.rclBounds = *rcBounds;
return GDIToObj(Clip, CLIP);
}
}
return NULL;
}
/*
* @implemented
*/
CLIPOBJ * APIENTRY
EngCreateClip(VOID)
{
CLIPGDI *Clip = EngAllocMem(FL_ZERO_MEMORY, sizeof(CLIPGDI), GDITAG_CLIPOBJ);
if(Clip != NULL)
{
return GDIToObj(Clip, CLIP);
}
return NULL;
}
APIENTRY
EngCreateWnd(
SURFOBJ *pso,
HWND hWnd,
WNDOBJCHANGEPROC pfn,
FLONG fl,
int iPixelFormat)
{
WNDGDI *WndObjInt = NULL;
WNDOBJ *WndObjUser = NULL;
PWND Window;
BOOL calledFromUser;
DECLARE_RETURN(WNDOBJ*);
DPRINT("EngCreateWnd: pso = 0x%p, hwnd = 0x%p, pfn = 0x%p, fl = 0x%lx, pixfmt = %d\n",
pso, hWnd, pfn, fl, iPixelFormat);
calledFromUser = UserIsEntered();
if (!calledFromUser){
UserEnterShared();
}
/* Get window object */
Window = UserGetWindowObject(hWnd);
if (Window == NULL)
{
RETURN( NULL);
}
/* Create WNDOBJ */
WndObjInt = EngAllocMem(0, sizeof (WNDGDI), GDITAG_WNDOBJ);
if (WndObjInt == NULL)
{
DPRINT1("Failed to allocate memory for a WND structure!\n");
RETURN( NULL);
}
/* Fill the clipobj */
WndObjInt->ClientClipObj = NULL;
if (!IntEngWndUpdateClipObj(WndObjInt, Window))
{
EngFreeMem(WndObjInt);
RETURN( NULL);
}
/* Fill user object */
WndObjUser = GDIToObj(WndObjInt, WND);
WndObjUser->psoOwner = pso;
WndObjUser->pvConsumer = NULL;
/* Fill internal object */
WndObjInt->Hwnd = hWnd;
WndObjInt->ChangeProc = pfn;
WndObjInt->Flags = fl;
WndObjInt->PixelFormat = iPixelFormat;
/* associate object with window */
IntSetProp(Window, AtomWndObj, WndObjInt);
++gcountPWO;
DPRINT("EngCreateWnd: SUCCESS!\n");
RETURN( WndObjUser);
CLEANUP:
if (!calledFromUser){
UserLeave();
}
END_CLEANUP;
}