al_get_opengl_texture_position - Allegro 5 API

       Returns the u/v coordinates for the top/left corner of the bitmap within the used texture, in pixels.

       al_get_opengl_texture_position - Allegro 5 API

al_get_opengl_texture_size(3alleg5)

Allegro reference manual                                                 al_get_opengl_texture_position(3alleg5)

              #include <allegro5/allegro_opengl.h>

              void al_get_opengl_texture_position(ALLEGRO_BITMAP *bitmap, int *u, int *v)