Method alphaBlend

src/main/java/net/optifine/Mipmaps.java:129–135

(int c1, int c2, int c3, int c4)

    }

    public static int alphaBlend(int c1, int c2, int c3, int c4)
    {
        int i = alphaBlend(c1, c2);
        int j = alphaBlend(c3, c4);
        int k = alphaBlend(i, j);
        return k;
    }

    private static int alphaBlend(int c1, int c2)
    {