man set_saturation_blender (3): Enables a saturation blender mode. Allegro game programming library.

set_saturation_blender(3) Enables a saturation blender mode. Allegro game programming library.

SYNOPSIS

#include <allegro.h>

void set_saturation_blender(int r, int g, int b, int a);

Enables a saturation blender mode for combining translucent or lit truecolor pixels. Applies the saturation of the source to the destination image.