al_get_d3d_texture_position
void al_get_d3d_texture_position(ALLEGRO_BITMAP *bitmap, int *u, int *v)
Returns the u/v coordinates for the top/left corner of the bitmap within the used texture, in pixels.
Parameters:
- bitmap - ALLEGRO_BITMAP to examine
- u - Will hold the returned u coordinate
- v - Will hold the returned v coordinate