827 	u8 r_y, g_u, b_v;  in gen_twopix()  local
837 	b_v = tpg->colors[color][2]; /* B or precalculated V */  in gen_twopix()
849 			buf[2][0] = (buf[2][0] + b_v) / 2;  in gen_twopix()
855 		buf[2][0] = b_v;  in gen_twopix()
861 			buf[1][0] = (buf[1][0] + b_v) / 2;  in gen_twopix()
867 		buf[1][0] = b_v;  in gen_twopix()
878 			buf[1][1] = (buf[1][1] + b_v) / 2;  in gen_twopix()
882 		buf[1][1] = b_v;  in gen_twopix()
890 			buf[1][0] = (buf[1][0] + b_v) / 2;  in gen_twopix()
894 		buf[1][0] = b_v;  in gen_twopix()
901 		buf[1][2 * offset + 1] = b_v;  in gen_twopix()
906 		buf[1][2 * offset] = b_v;  in gen_twopix()
914 			buf[0][3] = (buf[0][3] + b_v) / 2;  in gen_twopix()
918 		buf[0][3] = b_v;  in gen_twopix()
924 			buf[0][2] = (buf[0][2] + b_v) / 2;  in gen_twopix()
928 		buf[0][2] = b_v;  in gen_twopix()
933 			buf[0][1] = (buf[0][1] + b_v) / 2;  in gen_twopix()
937 		buf[0][1] = b_v;  in gen_twopix()
943 			buf[0][0] = (buf[0][0] + b_v) / 2;  in gen_twopix()
947 		buf[0][0] = b_v;  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()
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()
986 		buf[0][offset + 1] = (g_u << 5) | b_v;  in gen_twopix()
991 		buf[0][offset + 2] = b_v;  in gen_twopix()
994 		buf[0][offset] = b_v;  in gen_twopix()
999 		buf[0][offset] = (b_v << 2) | (g_u >> 4);  in gen_twopix()
1013 		buf[0][offset + 3] = b_v;  in gen_twopix()
1020 		buf[0][offset] = b_v;  in gen_twopix()
1026 		buf[0][offset] = odd ? g_u : b_v;  in gen_twopix()
1030 		buf[0][offset] = odd ? b_v : g_u;  in gen_twopix()
1035 		buf[1][offset] = odd ? g_u : b_v;  in gen_twopix()
1039 		buf[1][offset] = odd ? b_v : g_u;  in gen_twopix()