Re: [AD] al_clear

[Milan Mimica <milan.mimica@xxxxxxxxxx>]

Peter Wang wrote:
> > Let's have a function:
> > void al_clear_screen() { // or rather al_clear_bakbuffer()
> >    old = al_get_target_bitmap();
> >    al_set_target_bitmap(al_get_backbuffer());
> >    al_clear_target_bitmap();
> >    if (old != al_get_backbuffer())
> >      al_set_target_bitmap(old);
> > }
> >
> > and make a promise we won't do this with every drawing function.
>
> I don't think it's very useful to clear the backbuffer while keeping
> the target bitmap as something else.  Usually you'd clear the backbuffer
> as a precursor to drawing onto it.

But you sure wouldn't like al_clear_screen() to change the target bitmap. What 
you see here are implementation details. The point is, we can have both 
al_clear_screen() and al_clear_target_bitmap().


--
Milan Mimica
http://sparklet.sf.net