[AD] Unused vtable entries?

[Robert Jr Ohannessian <rohannessian@xxxxxxxxxx>]

Hi,
It seems the following system vtable entries aren't currently being used 
by Allegro:

AL_METHOD(struct BITMAP *, create_bitmap, (int color_depth, int width, 
int height));
AL_METHOD(void, created_bitmap, (struct BITMAP *bmp));
AL_METHOD(struct BITMAP *, create_sub_bitmap, (struct BITMAP *parent, 
int x, int y, int width, int height));
AL_METHOD(void, created_sub_bitmap, (struct BITMAP *bmp, struct BITMAP 
*parent));
AL_METHOD(int, destroy_bitmap, (struct BITMAP *bitmap));

So, am I missing something, and those are actually being use somewhere? 
Where would that be? And for what reason would a system driver need to 
know anything about memory bitmaps?

Thanks.

--
- Robert Jr Ohannessian
http://bob.allegronetwork.com/