static void
_cairo_xcb_surface_ensure_gc (cairo_xcb_surface_t *surface)
{
if (surface->gc.xid)
return;
surface->gc = XCBGCONTEXTNew(surface->dpy);
XCBCreateGC (surface->dpy, surface->gc, surface->drawable, 0, 0);
_cairo_xcb_surface_set_gc_clip_rects(surface);
}
/* gcvalues: the values themselves */
GC XCreateGC(register Display *dpy, Drawable drawable, unsigned long valuemask, XGCValues *gcvalues)
{
register GC gc;
register _XExtension *ext;
GCONTEXT g;
CARD32 values[32];
LockDisplay(dpy);
gc = (GC)Xmalloc (sizeof(struct _XGC));
if (gc == NULL)
goto done;
g = XCBGCONTEXTNew(XCBConnectionOfDisplay(dpy));
gc->gid = g.xid;
gc->rects = 0;
gc->dashes = 0;
gc->ext_data = NULL;
gc->values = initial_GC;
gc->dirty = 0L;
valuemask &= (1L << (GCLastBit + 1)) - 1;
if (valuemask)
_XUpdateGCCache (gc, valuemask, gcvalues);
if (gc->dirty)
_XGenerateGCList (&gc->values, gc->dirty, values);
XCBCreateGC(XCBConnectionOfDisplay(dpy), g, XCLDRAWABLE(drawable), gc->dirty, values);
/* call out to any extensions interested */
for (ext = dpy->ext_procs; ext; ext = ext->next)
if (ext->create_GC) (*ext->create_GC)(dpy, gc, &ext->codes);
gc->dirty = 0L; /* allow extensions to see dirty bits */
done:
UnlockDisplay(dpy);
return (gc);
}
