2 * X11DRV clipping functions
4 * Copyright 1998 Huw Davies
14 /***********************************************************************
15 * X11DRV_SetDeviceClipping
16 * Copy RECT32s to a temporary buffer of XRectangles and call
17 * TSXSetClipRectangles().
19 * Could write using GetRegionData but this would be slower.
21 void X11DRV_SetDeviceClipping( DC * dc )
24 RGNOBJ *obj = (RGNOBJ *) GDI_GetObjPtr(dc->w.hGCClipRgn, REGION_MAGIC);
27 ERR(x11drv, "Rgn is 0. Please report this.\n");
32 if (obj->rgn->numRects > 0)
35 RECT32 *pRect = obj->rgn->rects;
36 RECT32 *pEndRect = obj->rgn->rects + obj->rgn->numRects;
38 pXrect = HeapAlloc( GetProcessHeap(), 0,
39 sizeof(*pXrect) * obj->rgn->numRects );
42 WARN(x11drv, "Can't alloc buffer\n");
46 for(pXr = pXrect; pRect < pEndRect; pRect++, pXr++)
50 pXr->width = pRect->right - pRect->left;
51 pXr->height = pRect->bottom - pRect->top;
57 TSXSetClipRectangles( display, dc->u.x.gc, dc->w.DCOrgX, dc->w.DCOrgY,
58 pXrect, obj->rgn->numRects, YXBanded );
61 HeapFree( GetProcessHeap(), 0, pXrect );
63 GDI_HEAP_UNLOCK( dc->w.hGCClipRgn );