Microsoft.Xna.Framework.Graphics.ESTexture2D.ColorsFromPacked C# (CSharp) Метод

        private static void ColorsFromPacked(uint[] colors, uint c0, uint c1, bool flag)
        {
            uint rb0, rb1, rb2, rb3, g0, g1, g2, g3;

            rb0 = (c0 << 3 | c0 << 8) & 0xf800f8;
            rb1 = (c1 << 3 | c1 << 8) & 0xf800f8;
            rb0 += (rb0 >> 5) & 0x070007;
            rb1 += (rb1 >> 5) & 0x070007;
            g0 = (c0 << 5) & 0x00fc00;
            g1 = (c1 << 5) & 0x00fc00;
            g0 += (g0 >> 6) & 0x000300;
            g1 += (g1 >> 6) & 0x000300;

            colors[0] = rb0 + g0;
            colors[1] = rb1 + g1;

            if (c0 > c1 || flag)
            {
                rb2 = (((2 * rb0 + rb1) * 21) >> 6) & 0xff00ff;
                rb3 = (((2 * rb1 + rb0) * 21) >> 6) & 0xff00ff;
                g2 = (((2 * g0 + g1) * 21) >> 6) & 0x00ff00;
                g3 = (((2 * g1 + g0) * 21) >> 6) & 0x00ff00;
                colors[3] = rb3 + g3;
            }
            else
            {
                rb2 = ((rb0 + rb1) >> 1) & 0xff00ff;
                g2 = ((g0 + g1) >> 1) & 0x00ff00;
                colors[3] = 0;
            }

            colors[2] = rb2 + g2;
        }