827 	u8 r_y, g_u, b_v;  in gen_twopix()  local
836 	g_u = tpg->colors[color][1]; /* G or precalculated U */  in gen_twopix()
848 			buf[1][0] = (buf[1][0] + g_u) / 2;  in gen_twopix()
854 		buf[1][0] = g_u;  in gen_twopix()
862 			buf[2][0] = (buf[2][0] + g_u) / 2;  in gen_twopix()
868 		buf[2][0] = g_u;  in gen_twopix()
877 			buf[1][0] = (buf[1][0] + g_u) / 2;  in gen_twopix()
881 		buf[1][0] = g_u;  in gen_twopix()
891 			buf[1][1] = (buf[1][1] + g_u) / 2;  in gen_twopix()
895 		buf[1][1] = g_u;  in gen_twopix()
900 		buf[1][2 * offset] = g_u;  in gen_twopix()
907 		buf[1][2 * offset + 1] = g_u;  in gen_twopix()
913 			buf[0][1] = (buf[0][1] + g_u) / 2;  in gen_twopix()
917 		buf[0][1] = g_u;  in gen_twopix()
923 			buf[0][0] = (buf[0][0] + g_u) / 2;  in gen_twopix()
927 		buf[0][0] = g_u;  in gen_twopix()
934 			buf[0][3] = (buf[0][3] + g_u) / 2;  in gen_twopix()
938 		buf[0][3] = g_u;  in gen_twopix()
944 			buf[0][2] = (buf[0][2] + g_u) / 2;  in gen_twopix()
948 		buf[0][2] = g_u;  in gen_twopix()
951 		buf[0][offset] = (r_y << 5) | (g_u << 2) | b_v;  in gen_twopix()
955 		buf[0][offset] = (g_u << 5) | b_v;  in gen_twopix()
956 		buf[0][offset + 1] = (r_y << 3) | (g_u >> 3);  in gen_twopix()
959 		buf[0][offset] = (r_y << 3) | (g_u >> 3);  in gen_twopix()
960 		buf[0][offset + 1] = (g_u << 5) | b_v;  in gen_twopix()
968 		buf[0][offset] = (g_u << 4) | b_v;  in gen_twopix()
977 		buf[0][offset] = (g_u << 5) | b_v;  in gen_twopix()
978 		buf[0][offset + 1] = (alpha & 0x80) | (r_y << 2) | (g_u >> 3);  in gen_twopix()
985 		buf[0][offset] = (alpha & 0x80) | (r_y << 2) | (g_u >> 3);  in gen_twopix()
986 		buf[0][offset + 1] = (g_u << 5) | b_v;  in gen_twopix()
990 		buf[0][offset + 1] = g_u;  in gen_twopix()
995 		buf[0][offset + 1] = g_u;  in gen_twopix()
999 		buf[0][offset] = (b_v << 2) | (g_u >> 4);  in gen_twopix()
1000 		buf[0][offset + 1] = (g_u << 4) | (r_y >> 2);  in gen_twopix()
1012 		buf[0][offset + 2] = g_u;  in gen_twopix()
1021 		buf[0][offset + 1] = g_u;  in gen_twopix()
1026 		buf[0][offset] = odd ? g_u : b_v;  in gen_twopix()
1027 		buf[1][offset] = odd ? r_y : g_u;  in gen_twopix()
1030 		buf[0][offset] = odd ? b_v : g_u;  in gen_twopix()
1031 		buf[1][offset] = odd ? g_u : r_y;  in gen_twopix()
1034 		buf[0][offset] = odd ? r_y : g_u;  in gen_twopix()
1035 		buf[1][offset] = odd ? g_u : b_v;  in gen_twopix()
1038 		buf[0][offset] = odd ? g_u : r_y;  in gen_twopix()
1039 		buf[1][offset] = odd ? b_v : g_u;  in gen_twopix()