debian man page for rotate_sprite_v_flip_trans

rotate_sprite_v_flip_trans(3alleg4)				  Allegro manual			       rotate_sprite_v_flip_trans(3alleg4)

NAME
       rotate_sprite_v_flip_trans - Rotates and flips a sprite. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void rotate_sprite_v_flip_trans(BITMAP *bmp, BITMAP *sprite, int x, int y, fixed angle);

DESCRIPTION
       Like rotate_sprite_trans, but flips the image vertically before rotating it.  To flip horizontally, use this routine but add itofix(128) to
       the angle. To flip in both directions, use rotate_sprite() and add itofix(128) to its angle.

SEE ALSO
       rotate_sprite_trans(3alleg4),		    rotate_scaled_sprite_v_flip_trans(3alleg4), 	       pivot_sprite_v_flip_trans(3alleg4),
       pivot_scaled_sprite_v_flip_trans(3alleg4), exsprite(3alleg4)

Allegro 							   version 4.4.2			       rotate_sprite_v_flip_trans(3alleg4)