man set_blender_mode () - Specifies a custom set of truecolor blender routines. Allegro game programming library.
NAME
set_blender_mode - Specifies a custom set of truecolor blender routines. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
void set_blender_mode(BLENDER_FUNC b15, b16, b24, int r, g, b, a);
DESCRIPTION
Specifies a custom set of truecolor blender routines, which can be used to implement whatever special interpolation modes you need. This function shares a single blender between the 24 and 32-bit modes.