Re: [AD] al_clear

[Evert Glebbeek <eglebbk@xxxxxxxxxx>]

On 12 Mar 2009, at 10:00 , Elias Pschernig wrote:
> Yes, once you know what a "target bitmap" is. But a typical Allegro  
> user
> will never have heard of such a concept.
>
> Right now, if you want to open a window, load an image then draw the
> image and also draw a line, the functions are:
>
> al_create_display
> al_load_bitmap
> al_draw_bitmap
> al_draw_line
>
> Except that a window is called "display" and a picture is called
> "bitmap", it's very logical naming.
>
> Next, this Allegro user wants to clear the screen each frame to avoid
> droppings when he moves the image (or line). "al_clear_target_bitmap"
> will likely not sound like it's the right function. So that's what I
> meant, it's technical naming. I'd be fine with that - but I'd prefer
> al_clear_screen (or something like that), it's just a "nicer" name.

But weird if I ever want to use it to clear anything other than the  
display.
So, how about we have al_clear_target_bitmap(), which clears the  
current target bitmap, and al_clear_display()/screen(), which clears  
the backbuffer for the current display (ie, it's the same as  
al_clear_target_bitmap() in the common case where the target bitmap  
represents the screen)?

Evert