static void compute_antialias_float(MPADecodeContext *s, GranuleDef *g) { float *ptr; int n, i; /* we antialias only "long" bands */ if (g->block_type == 2) { if (!g->switch_point) return; /* XXX: check this for 8000Hz case */ n = 1; } else { n = SBLIMIT - 1; } ptr = g->sb_hybrid + 18; for(i = n;i > 0;i--) { float tmp0, tmp1; float *csa = &csa_table_float[0][0]; #define FLOAT_AA(j)\ tmp0= ptr[-1-j];\ tmp1= ptr[ j];\ ptr[-1-j] = tmp0 * csa[0+4*j] - tmp1 * csa[1+4*j];\ ptr[ j] = tmp0 * csa[1+4*j] + tmp1 * csa[0+4*j]; FLOAT_AA(0) FLOAT_AA(1) FLOAT_AA(2) FLOAT_AA(3) FLOAT_AA(4) FLOAT_AA(5) FLOAT_AA(6) FLOAT_AA(7) ptr += 18; } }