al_set_separate_blender(3)                          al_set_separate_blender(3)

NAME
       al_set_separate_blender - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              void al_set_separate_blender(int op, int src, int dst,
                 int alpha_op, int alpha_src, int alpha_dst)


DESCRIPTION
       Like al_set_blender(3), but allows specifying a separate blending
       operation for the alpha channel.  This is useful if your target bitmap
       also has an alpha channel and the two alpha channels need to be
       combined in a different way than the color components.

SEE ALSO
       al_set_blender(3), al_get_blender(3), al_get_separate_blender(3)

Allegro reference manual                            al_set_separate_blender(3)