diff options
Diffstat (limited to 'src/bin_ambi_reduced_decode_fir2.c')
-rw-r--r-- | src/bin_ambi_reduced_decode_fir2.c | 1260 |
1 files changed, 1260 insertions, 0 deletions
diff --git a/src/bin_ambi_reduced_decode_fir2.c b/src/bin_ambi_reduced_decode_fir2.c new file mode 100644 index 0000000..fb0ce92 --- /dev/null +++ b/src/bin_ambi_reduced_decode_fir2.c @@ -0,0 +1,1260 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iem_bin_ambi written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */ + +#ifdef NT +#pragma warning( disable : 4244 ) +#pragma warning( disable : 4305 ) +#endif + + +#include "m_pd.h" +#include "iemlib.h" +#include "iem_bin_ambi.h" +#include <math.h> +#include <stdio.h> +#include <string.h> + + +/* -------------------------- bin_ambi_reduced_decode_fir2 ------------------------------ */ +/* + ** berechnet ein reduziertes Ambisonic-Decoder-Set in die HRTF-Spektren ** + ** Inputs: ls + Liste von 3 floats: Index [1 .. 16] + Elevation [-90 .. +90 degree] + Azimut [0 .. 360 degree] ** + ** Inputs: calc_inv ** + ** Inputs: load_HRIR + float index1..16 ** + ** Outputs: List of 2 symbols: left-HRIR-File-name + HRIR-table-name ** + ** Inputs: calc_reduced ** + ** "output" ... writes the HRTF into tables ** + ** ** + ** ** + ** setzt voraus , dass die HRIR-tabele-names von 1016_1_L_HRIR .. 1016_16_L_HRIR heissen und existieren ** + ** setzt voraus , dass die HRTF-tabele-names von 1016_1_HRTF_re .. 1016_16_HRTF_re heissen und existieren ** + ** setzt voraus , dass die HRTF-tabele-names von 1016_1_HRTF_im .. 1016_16_HRTF_im heissen und existieren ** + */ + + +typedef struct _bin_ambi_reduced_decode_fir2 +{ + t_object x_obj; + t_atom x_at[2];/*output filename and tablename of HRIR*/ + int x_n_dim;/*dimension of ambisonic system*/ + int x_n_ambi;/*number of ambi channels*/ + int x_n_order;/*order of ambisonic system*/ + int x_n_real_ls;/*number of real loudspeakers*/ + int x_n_pht_ls;/*number of phantom loudspeakers*/ + int x_seq_ok; + int x_firsize;/*size of FIR-filter*/ + double *x_inv_work1;/* n_ambi*n_ambi buffer for matrix inverse */ + double *x_inv_work2;/* 2*n_ambi*n_ambi buffer for matrix inverse */ + double *x_inv_buf2;/* 2*n_ambi buffer for matrix inverse */ + double *x_transp;/* n_ls*n_ambi transposed input-buffer of decoder-matrix before inversion */ + double *x_ls_encode;/* n_ambi*n_ls straight input-buffer of decoder-matrix before inversion */ + double *x_prod2;/* n_ls*n_ambi output-buffer of decoder-matrix after inversion */ + double *x_prod3;/* n_ls*n_ambi output-buffer of decoder-matrix after inversion */ + double *x_ambi_channel_weight; + int *x_delta; + int *x_phi; + int *x_phi_sym; + int *x_sym_flag; + float *x_beg_fade_out_hrir; + float *x_beg_hrir; + float **x_beg_hrir_red; + t_symbol **x_hrir_filename; + t_symbol **x_s_hrir; + t_symbol **x_s_hrir_red; + t_symbol *x_s_fade_out_hrir; + void *x_out_sign_sum; + double x_sqrt3; + double x_sqrt10_4; + double x_sqrt15_2; + double x_sqrt6_4; + double x_sqrt35_8; + double x_sqrt70_4; + double x_sqrt5_2; + double x_sqrt126_16; + double x_sqrt315_8; + double x_sqrt105_4; + double x_pi_over_180; + double x_sing_range; +} t_bin_ambi_reduced_decode_fir2; + +static t_class *bin_ambi_reduced_decode_fir2_class; + +static void bin_ambi_reduced_decode_fir2_convert(t_bin_ambi_reduced_decode_fir2 *x, double *delta_deg2rad, double *phi_deg2rad, int index) +{ + double q = 1.0; + double d = *delta_deg2rad; + double p = *phi_deg2rad; + int i; + + if(d < -90.0) + d = -90.0; + if(d > 90.0) + d = 90.0; + while(p < 0.0) + p += 360.0; + while(p >= 360.0) + p -= 360.0; + + x->x_delta[index] = (int)(d); + x->x_phi[index] = (int)(p); + + *delta_deg2rad = d*x->x_pi_over_180; + *phi_deg2rad = p*x->x_pi_over_180; +} + +static void bin_ambi_reduced_decode_fir2_do_2d(t_bin_ambi_reduced_decode_fir2 *x, int argc, t_atom *argv, int mode) +{ + double delta=0.0, phi; + double *dw = x->x_transp; + int index; + int order=x->x_n_order; + + if(argc < 2) + { + post("bin_ambi_reduced_decode_fir2 ERROR: ls-input needs 1 index and 1 angle: ls_index + phi [degree]"); + return; + } + index = (int)atom_getint(argv++) - 1; + phi = (double)atom_getfloat(argv); + + if(index < 0) + index = 0; + if(mode == BIN_AMBI_LS_REAL) + { + if(index >= x->x_n_real_ls) + index = x->x_n_real_ls - 1; + } + else if(mode == BIN_AMBI_LS_PHT) + { + if(x->x_n_pht_ls) + { + if(index >= x->x_n_pht_ls) + index = x->x_n_pht_ls - 1; + index += x->x_n_real_ls; + } + else + return; + } + else + return; + + bin_ambi_reduced_decode_fir2_convert(x, &delta, &phi, index); + + dw += index * x->x_n_ambi; + + *dw++ = 1.0; + *dw++ = cos(phi); + *dw++ = sin(phi); + + if(order >= 2) + { + *dw++ = cos(2.0*phi); + *dw++ = sin(2.0*phi); + + if(order >= 3) + { + *dw++ = cos(3.0*phi); + *dw++ = sin(3.0*phi); + if(order >= 4) + { + *dw++ = cos(4.0*phi); + *dw++ = sin(4.0*phi); + + if(order >= 5) + { + *dw++ = cos(5.0*phi); + *dw++ = sin(5.0*phi); + + if(order >= 6) + { + *dw++ = cos(6.0*phi); + *dw++ = sin(6.0*phi); + + if(order >= 7) + { + *dw++ = cos(7.0*phi); + *dw++ = sin(7.0*phi); + + if(order >= 8) + { + *dw++ = cos(8.0*phi); + *dw++ = sin(8.0*phi); + + if(order >= 9) + { + *dw++ = cos(9.0*phi); + *dw++ = sin(9.0*phi); + + if(order >= 10) + { + *dw++ = cos(10.0*phi); + *dw++ = sin(10.0*phi); + + if(order >= 11) + { + *dw++ = cos(11.0*phi); + *dw++ = sin(11.0*phi); + + if(order >= 12) + { + *dw++ = cos(12.0*phi); + *dw++ = sin(12.0*phi); + } + } + } + } + } + } + } + } + } + } + } +} + +static void bin_ambi_reduced_decode_fir2_do_3d(t_bin_ambi_reduced_decode_fir2 *x, int argc, t_atom *argv, int mode) +{ + double delta, phi; + double cd, sd, cd2, cd3, sd2, csd, cp, sp, cp2, sp2, cp3, sp3, cp4, sp4; + double *dw = x->x_transp; + int index; + int order=x->x_n_order; + + if(argc < 3) + { + post("bin_ambi_reduced_decode_fir2 ERROR: ls-input needs 1 index and 2 angles: ls index + delta [degree] + phi [degree]"); + return; + } + index = (int)atom_getint(argv++) - 1; + delta = atom_getfloat(argv++); + phi = atom_getfloat(argv); + + if(index < 0) + index = 0; + if(mode == BIN_AMBI_LS_REAL) + { + if(index >= x->x_n_real_ls) + index = x->x_n_real_ls - 1; + } + else if(mode == BIN_AMBI_LS_PHT) + { + if(x->x_n_pht_ls) + { + if(index >= x->x_n_pht_ls) + index = x->x_n_pht_ls - 1; + index += x->x_n_real_ls; + } + else + return; + } + else + return; + + bin_ambi_reduced_decode_fir2_convert(x, &delta, &phi, index); + + cd = cos(delta); + sd = sin(delta); + cp = cos(phi); + sp = sin(phi); + + dw += index * x->x_n_ambi; + + *dw++ = 1.0; + + *dw++ = cd * cp; + *dw++ = cd * sp; + *dw++ = sd; + + if(order >= 2) + { + cp2 = cos(2.0*phi); + sp2 = sin(2.0*phi); + cd2 = cd * cd; + sd2 = sd * sd; + csd = cd * sd; + *dw++ = 0.5 * x->x_sqrt3 * cd2 * cp2; + *dw++ = 0.5 * x->x_sqrt3 * cd2 * sp2; + *dw++ = x->x_sqrt3 * csd * cp; + *dw++ = x->x_sqrt3 * csd * sp; + *dw++ = 0.5 * (3.0 * sd2 - 1.0); + + if(order >= 3) + { + cp3 = cos(3.0*phi); + sp3 = sin(3.0*phi); + cd3 = cd2 * cd; + *dw++ = x->x_sqrt10_4 * cd3 * cp3; + *dw++ = x->x_sqrt10_4 * cd3 * sp3; + *dw++ = x->x_sqrt15_2 * cd * csd * cp2; + *dw++ = x->x_sqrt15_2 * cd * csd * sp2; + *dw++ = x->x_sqrt6_4 * cd * (5.0 * sd2 - 1.0) * cp; + *dw++ = x->x_sqrt6_4 * cd * (5.0 * sd2 - 1.0) * sp; + *dw++ = 0.5 * sd * (5.0 * sd2 - 3.0); + + if(order >= 4) + { + cp4 = cos(4.0*phi); + sp4 = sin(4.0*phi); + *dw++ = x->x_sqrt35_8 * cd2 * cd2 * cp4; + *dw++ = x->x_sqrt35_8 * cd2 * cd2 * sp4; + *dw++ = x->x_sqrt70_4 * cd2 * csd * cp3; + *dw++ = x->x_sqrt70_4 * cd2 * csd * sp3; + *dw++ = 0.5 * x->x_sqrt5_2 * cd2 * (7.0 * sd2 - 1.0) * cp2; + *dw++ = 0.5 * x->x_sqrt5_2 * cd2 * (7.0 * sd2 - 1.0) * sp2; + *dw++ = x->x_sqrt10_4 * csd * (7.0 * sd2 - 3.0) * cp; + *dw++ = x->x_sqrt10_4 * csd * (7.0 * sd2 - 3.0) * sp; + *dw++ = 0.125 * (sd2 * (35.0 * sd2 - 30.0) + 3.0); + + if(order >= 5) + { + *dw++ = x->x_sqrt126_16 * cd3 * cd2 * cos(5.0*phi); + *dw++ = x->x_sqrt126_16 * cd3 * cd2 * sin(5.0*phi); + *dw++ = x->x_sqrt315_8 * cd3 * csd * cp4; + *dw++ = x->x_sqrt315_8 * cd3 * csd * sp4; + *dw++ = 0.25 * x->x_sqrt70_4 * cd3 * (9.0 * sd2 - 1.0) * cp3; + *dw++ = 0.25 * x->x_sqrt70_4 * cd3 * (9.0 * sd2 - 1.0) * sp3; + *dw++ = x->x_sqrt105_4 * cd * csd * (3.0 * sd2 - 1.0) * cp2; + *dw++ = x->x_sqrt105_4 * cd * csd * (3.0 * sd2 - 1.0) * sp2; + *dw++ = 0.25 * x->x_sqrt15_2 * cd * (sd2 * (21.0 * sd2 - 14.0) + 1.0) * cp; + *dw++ = 0.25 * x->x_sqrt15_2 * cd * (sd2 * (21.0 * sd2 - 14.0) + 1.0) * sp; + *dw = 0.125 * sd * (sd2 * (63.0 * sd2 - 70.0) + 15.0); + } + } + } + } +} + +static void bin_ambi_reduced_decode_fir2_real_ls(t_bin_ambi_reduced_decode_fir2 *x, t_symbol *s, int argc, t_atom *argv) +{ + if(x->x_n_dim == 2) + bin_ambi_reduced_decode_fir2_do_2d(x, argc, argv, BIN_AMBI_LS_REAL); + else + bin_ambi_reduced_decode_fir2_do_3d(x, argc, argv, BIN_AMBI_LS_REAL); + x->x_seq_ok = 1; +} + +static void bin_ambi_reduced_decode_fir2_pht_ls(t_bin_ambi_reduced_decode_fir2 *x, t_symbol *s, int argc, t_atom *argv) +{ + if(x->x_n_dim == 2) + bin_ambi_reduced_decode_fir2_do_2d(x, argc, argv, BIN_AMBI_LS_PHT); + else + bin_ambi_reduced_decode_fir2_do_3d(x, argc, argv, BIN_AMBI_LS_PHT); +} + +static void bin_ambi_reduced_decode_fir2_copy_row2buf(t_bin_ambi_reduced_decode_fir2 *x, int row) +{ + int n_ambi2 = 2*x->x_n_ambi; + int i; + double *dw=x->x_inv_work2; + double *db=x->x_inv_buf2; + + dw += row*n_ambi2; + for(i=0; i<n_ambi2; i++) + *db++ = *dw++; +} + +static void bin_ambi_reduced_decode_fir2_copy_buf2row(t_bin_ambi_reduced_decode_fir2 *x, int row) +{ + int n_ambi2 = 2*x->x_n_ambi; + int i; + double *dw=x->x_inv_work2; + double *db=x->x_inv_buf2; + + dw += row*n_ambi2; + for(i=0; i<n_ambi2; i++) + *dw++ = *db++; +} + +static void bin_ambi_reduced_decode_fir2_copy_row2row(t_bin_ambi_reduced_decode_fir2 *x, int src_row, int dst_row) +{ + int n_ambi2 = 2*x->x_n_ambi; + int i; + double *dw_src=x->x_inv_work2; + double *dw_dst=x->x_inv_work2; + + dw_src += src_row*n_ambi2; + dw_dst += dst_row*n_ambi2; + for(i=0; i<n_ambi2; i++) + *dw_dst++ = *dw_src++; +} + +static void bin_ambi_reduced_decode_fir2_xch_rows(t_bin_ambi_reduced_decode_fir2 *x, int row1, int row2) +{ + bin_ambi_reduced_decode_fir2_copy_row2buf(x, row1); + bin_ambi_reduced_decode_fir2_copy_row2row(x, row2, row1); + bin_ambi_reduced_decode_fir2_copy_buf2row(x, row2); +} + +static void bin_ambi_reduced_decode_fir2_mul_row(t_bin_ambi_reduced_decode_fir2 *x, int row, double mul) +{ + int n_ambi2 = 2*x->x_n_ambi; + int i; + double *dw=x->x_inv_work2; + + dw += row*n_ambi2; + for(i=0; i<n_ambi2; i++) + { + (*dw) *= mul; + dw++; + } +} + +static void bin_ambi_reduced_decode_fir2_mul_col(t_bin_ambi_reduced_decode_fir2 *x, int col, double mul) +{ + int n_ambi = x->x_n_ambi; + int n_ambi2 = 2*n_ambi; + int i; + double *dw=x->x_inv_work2; + + dw += col; + for(i=0; i<n_ambi; i++) + { + (*dw) *= mul; + dw += n_ambi2; + } +} + +static void bin_ambi_reduced_decode_fir2_mul_buf_and_add2row(t_bin_ambi_reduced_decode_fir2 *x, int row, double mul) +{ + int n_ambi2 = 2*x->x_n_ambi; + int i; + double *dw=x->x_inv_work2; + double *db=x->x_inv_buf2; + + dw += row*n_ambi2; + for(i=0; i<n_ambi2; i++) + { + *dw += (*db)*mul; + dw++; + db++; + } +} + +static int bin_ambi_reduced_decode_fir2_eval_which_element_of_col_not_zero(t_bin_ambi_reduced_decode_fir2 *x, int col, int start_row) +{ + int n_ambi = x->x_n_ambi; + int n_ambi2 = 2*n_ambi; + int i, j; + double *dw=x->x_inv_work2; + double singrange=x->x_sing_range; + int ret=-1; + + dw += start_row*n_ambi2 + col; + j = 0; + for(i=start_row; i<n_ambi; i++) + { + if((*dw > singrange) || (*dw < -singrange)) + { + ret = i; + i = n_ambi+1; + } + dw += n_ambi2; + } + return(ret); +} + +static void bin_ambi_reduced_decode_fir2_mul1(t_bin_ambi_reduced_decode_fir2 *x) +{ + double *vec1, *beg1=x->x_ls_encode; + double *vec2, *beg2=x->x_ls_encode; + double *inv=x->x_inv_work1; + double sum; + int n_ls=x->x_n_real_ls+x->x_n_pht_ls; + int n_ambi=x->x_n_ambi; + int i, j, k; + + for(k=0; k<n_ambi; k++) + { + beg2=x->x_ls_encode; + for(j=0; j<n_ambi; j++) + { + sum = 0.0; + vec1 = beg1; + vec2 = beg2; + for(i=0; i<n_ls; i++) + { + sum += *vec1++ * *vec2++; + } + beg2 += n_ls; + *inv++ = sum; + } + beg1 += n_ls; + } +} + +static void bin_ambi_reduced_decode_fir2_mul2(t_bin_ambi_reduced_decode_fir2 *x) +{ + int n_ls=x->x_n_real_ls+x->x_n_pht_ls; + int n_ambi=x->x_n_ambi; + int n_ambi2=2*n_ambi; + int i, j, k; + double *vec1, *beg1=x->x_transp; + double *vec2, *beg2=x->x_inv_work2+n_ambi; + double *vec3=x->x_prod2; + double *acw_vec=x->x_ambi_channel_weight; + double sum; + + for(k=0; k<n_ls; k++) + { + beg2=x->x_inv_work2+n_ambi; + for(j=0; j<n_ambi; j++) + { + sum = 0.0; + vec1 = beg1; + vec2 = beg2; + for(i=0; i<n_ambi; i++) + { + sum += *vec1++ * *vec2; + vec2 += n_ambi2; + } + beg2++; + *vec3++ = sum * acw_vec[j]; + } + beg1 += n_ambi; + } +} + +/* wird ersetzt durch haendische spiegelung und reduzierung +static void bin_ambi_reduced_decode_fir2_mul3(t_bin_ambi_reduced_decode_fir2 *x) +{ + int i, n; + double *dv3=x->x_prod3; + double *dv2=x->x_prod2; + double *dv1=x->x_prod2; + double mw=x->x_mirror_weight; + + n = x->x_n_ind_ls * x->x_n_ambi; + for(i=0; i<n; i++) + *dv3++ = *dv1++; + dv2 += n; + n = x->x_n_mrg_mir_ls * x->x_n_ambi; + dv2 += n; + for(i=0; i<n; i++) + *dv3++ = *dv1++ + (*dv2++)*mw; +}*/ + +static void bin_ambi_reduced_decode_fir2_transp_back(t_bin_ambi_reduced_decode_fir2 *x) +{ + double *vec, *transp=x->x_transp; + double *straight=x->x_ls_encode; + int n_ls=x->x_n_real_ls+x->x_n_pht_ls; + int n_ambi=x->x_n_ambi; + int i, j; + + transp = x->x_transp; + for(j=0; j<n_ambi; j++) + { + vec = transp; + for(i=0; i<n_ls; i++) + { + *straight++ = *vec; + vec += n_ambi; + } + transp++; + } +} + +static void bin_ambi_reduced_decode_fir2_inverse(t_bin_ambi_reduced_decode_fir2 *x) +{ + int n_ambi = x->x_n_ambi; + int n_ambi2 = 2*n_ambi; + int i, j, nz; + int r,c; + double *src=x->x_inv_work1; + double *db=x->x_inv_work2; + double rcp, *dv; + + dv = db; + for(i=0; i<n_ambi; i++) /* init */ + { + for(j=0; j<n_ambi; j++) + { + *dv++ = *src++; + } + for(j=0; j<n_ambi; j++) + { + if(j == i) + *dv++ = 1.0; + else + *dv++ = 0.0; + } + } + + /* make 1 in main-diagonale, and 0 below */ + for(i=0; i<n_ambi; i++) + { + nz = bin_ambi_reduced_decode_fir2_eval_which_element_of_col_not_zero(x, i, i); + if(nz < 0) + { + post("bin_ambi_reduced_decode_fir2 ERROR: matrix not regular !!!!"); + x->x_seq_ok = 0; + return; + } + else + { + if(nz != i) + bin_ambi_reduced_decode_fir2_xch_rows(x, i, nz); + dv = db + i*n_ambi2 + i; + rcp = 1.0 /(*dv); + bin_ambi_reduced_decode_fir2_mul_row(x, i, rcp); + bin_ambi_reduced_decode_fir2_copy_row2buf(x, i); + for(j=i+1; j<n_ambi; j++) + { + dv += n_ambi2; + rcp = -(*dv); + bin_ambi_reduced_decode_fir2_mul_buf_and_add2row(x, j, rcp); + } + } + } + + /* make 0 above the main diagonale */ + for(i=n_ambi-1; i>=0; i--) + { + dv = db + i*n_ambi2 + i; + bin_ambi_reduced_decode_fir2_copy_row2buf(x, i); + for(j=i-1; j>=0; j--) + { + dv -= n_ambi2; + rcp = -(*dv); + bin_ambi_reduced_decode_fir2_mul_buf_and_add2row(x, j, rcp); + } + } + + post("matrix_inverse regular"); + x->x_seq_ok = 1; +} + +static void bin_ambi_reduced_decode_fir2_calc_pinv(t_bin_ambi_reduced_decode_fir2 *x) +{ + t_garray *a; + int npoints; + t_float *fadevec; + int i, n; + double *dv3=x->x_prod3; + double *dv2=x->x_prod2; + + if((int)(x->x_beg_fade_out_hrir) == 0) + { + if (!(a = (t_garray *)pd_findbyclass(x->x_s_fade_out_hrir, garray_class))) + error("%s: no such array", x->x_s_fade_out_hrir->s_name); + else if (!garray_getfloatarray(a, &npoints, &fadevec)) + error("%s: bad template for bin_ambi_reduced_decode_fir2", x->x_s_fade_out_hrir->s_name); + else if (npoints < x->x_firsize) + error("%s: bad array-size: %d", x->x_s_fade_out_hrir->s_name, npoints); + else + x->x_beg_fade_out_hrir = fadevec; + } + + bin_ambi_reduced_decode_fir2_transp_back(x); + bin_ambi_reduced_decode_fir2_mul1(x); + bin_ambi_reduced_decode_fir2_inverse(x); + bin_ambi_reduced_decode_fir2_mul2(x); + + n = x->x_n_real_ls * x->x_n_ambi; + for(i=0; i<n; i++) + *dv3++ = *dv2++; +} + +/* +x_prod: +n_ambi columns; +n_ambi rows; +*/ + +static void bin_ambi_reduced_decode_fir2_ipht_ireal_muladd(t_bin_ambi_reduced_decode_fir2 *x, t_symbol *s, int argc, t_atom *argv) +{ + int n = x->x_n_ambi; + int i, pht_index, real_index; + double *dv3=x->x_prod3; + double *dv2=x->x_prod2; + float mw; + + if(argc < 3) + { + post("bin_ambi_reduced_decode_fir2 ERROR: ipht_ireal_muladd needs 2 index and 1 mirrorweight: pht_ls_index + real_ls_index + mirror_weight_element"); + return; + } + pht_index = (int)atom_getint(argv++) - 1; + real_index = (int)atom_getint(argv++) - 1; + mw = (double)atom_getfloat(argv); + + if(pht_index < 0) + pht_index = 0; + if(real_index < 0) + real_index = 0; + if(real_index >= x->x_n_real_ls) + real_index = x->x_n_real_ls - 1; + if(pht_index >= x->x_n_pht_ls) + pht_index = x->x_n_pht_ls - 1; + + dv3 += real_index*x->x_n_ambi; + dv2 += (x->x_n_real_ls+pht_index)*x->x_n_ambi; + for(i=0; i<n; i++) + { + *dv3 += (*dv2++)*mw; + dv3++; + } +} + +static void bin_ambi_reduced_decode_fir2_load_HRIR(t_bin_ambi_reduced_decode_fir2 *x, t_symbol *s, int argc, t_atom *argv) +{ + int index; + t_symbol *hrirname; + + if(argc < 2) + { + post("bin_ambi_reduced_decode_fir2 ERROR: load_HRIR needs 1 index and 1 HRIR-wav"); + return; + } + index = (int)atom_getint(argv++) - 1; + hrirname = atom_getsymbol(argv); + if(index < 0) + index = 0; + if(index >= x->x_n_real_ls) + index = x->x_n_real_ls - 1; + x->x_hrir_filename[index] = hrirname; + + SETSYMBOL(x->x_at, x->x_hrir_filename[index]); + SETSYMBOL(x->x_at+1, x->x_s_hrir[index]); + outlet_list(x->x_obj.ob_outlet, &s_list, 2, x->x_at); +} + +static void bin_ambi_reduced_decode_fir2_check_HRIR_arrays(t_bin_ambi_reduced_decode_fir2 *x, float findex) +{ + int index=(int)findex - 1; + int j, k, n; + int firsize = x->x_firsize; + t_garray *a; + int npoints; + t_symbol *hrir; + t_float *vec_hrir, *vec, *vec_fade_out_hrir; + float decr, sum; + + if(index < 0) + index = 0; + if(index >= x->x_n_real_ls) + index = x->x_n_real_ls - 1; + + hrir = x->x_s_hrir[index]; + if (!(a = (t_garray *)pd_findbyclass(hrir, garray_class))) + error("%s: no such array", hrir->s_name); + else if (!garray_getfloatarray(a, &npoints, &vec_hrir)) + error("%s: bad template for bin_ambi_reduced_decode_fir2", hrir->s_name); + else + { + if(npoints < firsize) + { + post("bin_ambi_reduced_decode_fir2-WARNING: %s-array-size: %d < FIR-size: %d", hrir->s_name, npoints, firsize); + } + vec = x->x_beg_hrir; + vec += index * firsize; + + if((int)(x->x_beg_fade_out_hrir)) + { + vec_fade_out_hrir = x->x_beg_fade_out_hrir; + for(j=0; j<firsize; j++) + vec[j] = vec_hrir[j]*vec_fade_out_hrir[j]; + } + else + { + post("no HRIR-fade-out-window found"); + n = firsize * 3; + n /= 4; + for(j=0; j<n; j++) + vec[j] = vec_hrir[j]; + sum = 1.0f; + decr = 4.0f / (float)firsize; + for(j=n, k=0; j<firsize; j++, k++) + { + sum -= decr; + vec[j] = vec_hrir[j] * sum; + } + } + } +} + +static void bin_ambi_reduced_decode_fir2_check_HRIR_RED_arrays(t_bin_ambi_reduced_decode_fir2 *x, float findex) +{ + int index=(int)findex - 1; + t_garray *a; + int npoints; + int firsize = x->x_firsize; + t_float *vec_hrir_red; + t_symbol *hrir_red; + + if(index < 0) + index = 0; + if(index >= x->x_n_ambi) + index = x->x_n_ambi - 1; + + hrir_red = x->x_s_hrir_red[index]; + + if (!(a = (t_garray *)pd_findbyclass(hrir_red, garray_class))) + error("%s: no such array", hrir_red->s_name); + else if (!garray_getfloatarray(a, &npoints, &vec_hrir_red)) + error("%s: bad template for bin_ambi_reduced_decode_fir2", hrir_red->s_name); + else if (npoints < firsize) + error("%s: bad array-size: %d", hrir_red->s_name, npoints); + else + { + x->x_beg_hrir_red[index] = vec_hrir_red; + } +} + +static void bin_ambi_reduced_decode_fir2_calc_reduced(t_bin_ambi_reduced_decode_fir2 *x, float findex) +{ + int index=(int)findex - 1; + int i, j; + int firsize = x->x_firsize; + t_float *vec_hrir, *vec_hrir_red; + double *dv; + int n_ambi = x->x_n_ambi; + int n_ls = x->x_n_real_ls; + float mul; + + if(x->x_seq_ok) + { + if(index < 0) + index = 0; + if(index >= n_ambi) + index = n_ambi - 1; + + vec_hrir_red = x->x_beg_hrir_red[index]; + + dv = x->x_prod3 + index; + mul = (float)(*dv); + vec_hrir = x->x_beg_hrir; + for(i=0; i<firsize; i++)/*first step of acumulating the HRIRs*/ + { + vec_hrir_red[i] = mul * vec_hrir[i]; + } + + for(j=1; j<n_ls; j++) + { + dv += n_ambi; + mul = (float)(*dv); + vec_hrir = x->x_beg_hrir; + vec_hrir += j * firsize; + for(i=0; i<firsize; i++) + { + vec_hrir_red[i] += mul * vec_hrir[i]; + } + } + } +} + +static void bin_ambi_reduced_decode_fir2_calc_sym(t_bin_ambi_reduced_decode_fir2 *x) +{ + int *sym=x->x_phi_sym; + int n_ls = x->x_n_real_ls; + int n_ambi = x->x_n_ambi; + int n_ambi2 = 2*n_ambi; + int *phi=x->x_phi; + int *delta=x->x_delta; + int *flag=x->x_sym_flag; + int i, j, d, p, regular=1; + double *dv, *db=x->x_prod3; + double a, b, q; + int sym_max=0; + int pos_sym_counter, neg_sym_counter; + char plus_minus[100]; + char abc[100]; + char onenine[100]; + char ten[100]; + + if(x->x_seq_ok) + { + for(i=0; i<n_ls; i++) + sym[i] = -1; + + plus_minus[0] = 0; + if(x->x_n_dim == 2) + { + strcpy(abc, " WXYXYXYXYXYXYXYXYXYXYXYXYXYXYXYXYXYXYXY"); + strcpy(ten, " 000000000000000000011111111111111111111"); + strcpy(onenine, " 011223344556677889900112233445566778899"); + abc[n_ambi+22] = 0; + ten[n_ambi+22] = 0; + onenine[n_ambi+22] = 0; + post(abc); + post(ten); + post(onenine); + } + else + { + strcpy(abc, " AABCABCDEABCDEFGABCDEFGHIABCDEFGHIJKABCDEFGHIJKLM"); + strcpy(onenine, " 0111222223333333444444444555555555556666666666666"); + abc[n_ambi+22] = 0; + onenine[n_ambi+22] = 0; + post(abc); + post(onenine); + } + + for(i=0; i<n_ls; i++)/* looking for azimuth symmetries of loudspeakers */ + { + d = delta[i]; + p = phi[i]; + for(j=i+1; j<n_ls; j++) + { + if(d == delta[j]) + { + if((p + phi[j]) == 360) + { + if((sym[i] < 0) && (sym[j] < 0)) + { + sym[i] = j; + sym[j] = i; + j = n_ls + 1; + sym_max++; + } + } + } + } + } + + for(p=0; p<n_ambi; p++)/*each col*/ + { + pos_sym_counter = 0; + neg_sym_counter = 0; + for(i=0; i<n_ls; i++) + flag[i] = 1; + dv = db + p; + for(i=0; i<n_ls; i++) + { + if((sym[i] >= 0) && flag[i]) + { + j = sym[i]; + flag[i] = 0; + flag[j] = 0; + a = dv[i*n_ambi]; + b = dv[j*n_ambi]; + if((a < 5.0e-4)&&(a > -5.0e-4)&&(b < 5.0e-4)&&(b > -5.0e-4)) + { + pos_sym_counter++; + neg_sym_counter++; + } + else + { + q = a / b; + if((q < 1.005)&&(q > 0.995)) + pos_sym_counter++; + else if((q > -1.005)&&(q < -0.995)) + neg_sym_counter++; + } + } + } + if(pos_sym_counter == sym_max) + strcat(plus_minus, "+"); + else if(neg_sym_counter == sym_max) + strcat(plus_minus, "-"); + else + { + strcat(plus_minus, "?"); + regular = 0; + } + } + post("sum of right channel: %s", plus_minus); + + if(regular) + { + for(i=0; i<n_ambi; i++) + { + /*change*/ + if(plus_minus[i] == '+') + SETFLOAT(x->x_at, 1.0f); + else if(plus_minus[i] == '-') + SETFLOAT(x->x_at, 2.0f); + SETFLOAT(x->x_at+1, (float)(i+1)); + outlet_list(x->x_out_sign_sum, &s_list, 2, x->x_at); + } + } + } +} + +static void bin_ambi_reduced_decode_fir2_ambi_weight(t_bin_ambi_reduced_decode_fir2 *x, t_symbol *s, int argc, t_atom *argv) +{ + if(argc > x->x_n_order) + { + int i, k=0, n=x->x_n_order; + double d; + + x->x_ambi_channel_weight[k] = (double)atom_getfloat(argv++); + k++; + if(x->x_n_dim == 2) + { + for(i=1; i<=n; i++) + { + d = (double)atom_getfloat(argv++); + x->x_ambi_channel_weight[k] = d; + k++; + x->x_ambi_channel_weight[k] = d; + k++; + } + } + else + { + int j, m; + + for(i=1; i<=n; i++) + { + d = (double)atom_getfloat(argv++); + m = 2*i + 1; + for(j=0; j<m; j++) + { + x->x_ambi_channel_weight[k] = d; + k++; + } + } + } + } + else + post("bin_ambi_reduced_decode_fir2-ERROR: ambi_weight needs %d float weights", x->x_n_order+1); +} + +static void bin_ambi_reduced_decode_fir2_sing_range(t_bin_ambi_reduced_decode_fir2 *x, t_floatarg f) +{ + if(f < 0.0f) + x->x_sing_range = -(double)f; + else + x->x_sing_range = (double)f; +} + +static void bin_ambi_reduced_decode_fir2_free(t_bin_ambi_reduced_decode_fir2 *x) +{ + freebytes(x->x_hrir_filename, x->x_n_real_ls * sizeof(t_symbol *)); + freebytes(x->x_s_hrir, x->x_n_real_ls * sizeof(t_symbol *)); + freebytes(x->x_s_hrir_red, x->x_n_ambi * sizeof(t_symbol *)); + freebytes(x->x_inv_work1, x->x_n_ambi * x->x_n_ambi * sizeof(double)); + freebytes(x->x_inv_work2, 2 * x->x_n_ambi * x->x_n_ambi * sizeof(double)); + freebytes(x->x_inv_buf2, 2 * x->x_n_ambi * sizeof(double)); + freebytes(x->x_transp, (x->x_n_real_ls+x->x_n_pht_ls) * x->x_n_ambi * sizeof(double)); + freebytes(x->x_ls_encode, (x->x_n_real_ls+x->x_n_pht_ls) * x->x_n_ambi * sizeof(double)); + freebytes(x->x_prod2, (x->x_n_real_ls+x->x_n_pht_ls) * x->x_n_ambi * sizeof(double)); + freebytes(x->x_prod3, x->x_n_real_ls * x->x_n_ambi * sizeof(double)); + freebytes(x->x_ambi_channel_weight, x->x_n_ambi * sizeof(double)); + + freebytes(x->x_delta, (x->x_n_real_ls+x->x_n_pht_ls)* sizeof(int)); + freebytes(x->x_phi, (x->x_n_real_ls+x->x_n_pht_ls) * sizeof(int)); + freebytes(x->x_phi_sym, x->x_n_real_ls * sizeof(int)); + freebytes(x->x_sym_flag, x->x_n_real_ls * sizeof(int)); + + freebytes(x->x_beg_hrir, x->x_firsize * x->x_n_real_ls * sizeof(float)); + freebytes(x->x_beg_hrir_red, x->x_n_ambi * sizeof(float *)); +} + +/* + 1.arg_ int prefix; + 2.arg: t_symbol *hrir_name; + 3.arg: t_symbol *hrir_red_name; + 4.arg: t_symbol *hrtf_im_name; + 5.arg: t_symbol *hrir_fade_out_name; + 6.arg: int ambi_order; + 7.arg: int dim; + 8.arg: int number_of_loudspeakers; + 9.arg: int firsize; + */ + +static void *bin_ambi_reduced_decode_fir2_new(t_symbol *s, int argc, t_atom *argv) +{ + t_bin_ambi_reduced_decode_fir2 *x = (t_bin_ambi_reduced_decode_fir2 *)pd_new(bin_ambi_reduced_decode_fir2_class); + char buf[400]; + int i, j, ok=0; + int n_order=0, n_dim=0, n_real_ls=0, n_pht_ls=0, n_ambi=0, firsize=0, prefix=0; + t_symbol *s_hrir=gensym("L_HRIR"); + t_symbol *s_hrir_red=gensym("HRIR_red"); + t_symbol *s_fade_out_hrir=gensym("HRIR_win"); + + if((argc >= 9) && + IS_A_FLOAT(argv,0) && + IS_A_SYMBOL(argv,1) && + IS_A_SYMBOL(argv,2) && + IS_A_SYMBOL(argv,3) && + IS_A_FLOAT(argv,4) && + IS_A_FLOAT(argv,5) && + IS_A_FLOAT(argv,6) && + IS_A_FLOAT(argv,7) && + IS_A_FLOAT(argv,8)) + { + prefix = (int)atom_getintarg(0, argc, argv); + + s_hrir = (t_symbol *)atom_getsymbolarg(1, argc, argv); + s_hrir_red = (t_symbol *)atom_getsymbolarg(2, argc, argv); + s_fade_out_hrir = (t_symbol *)atom_getsymbolarg(3, argc, argv); + + n_order = (int)atom_getintarg(4, argc, argv); + n_dim = (int)atom_getintarg(5, argc, argv); + n_real_ls = (int)atom_getintarg(6, argc, argv); + n_pht_ls = (int)atom_getintarg(7, argc, argv); + firsize = (int)atom_getintarg(8, argc, argv); + + ok = 1; + } + else if((argc >= 9) && + IS_A_FLOAT(argv,0) && + IS_A_FLOAT(argv,1) && + IS_A_FLOAT(argv,2) && + IS_A_FLOAT(argv,3) && + IS_A_FLOAT(argv,4) && + IS_A_FLOAT(argv,5) && + IS_A_FLOAT(argv,6) && + IS_A_FLOAT(argv,7) && + IS_A_FLOAT(argv,8)) + { + prefix = (int)atom_getintarg(0, argc, argv); + + s_hrir = gensym("L_HRIR"); + s_hrir_red = gensym("HRIR_red"); + s_fade_out_hrir = gensym("HRIR_win"); + + n_order = (int)atom_getintarg(4, argc, argv); + n_dim = (int)atom_getintarg(5, argc, argv); + n_real_ls = (int)atom_getintarg(6, argc, argv); + n_pht_ls = (int)atom_getintarg(7, argc, argv); + firsize = (int)atom_getintarg(8, argc, argv); + + ok = 1; + } + + if(ok) + { + if(n_order < 1) + n_order = 1; + + if(n_dim == 3) + { + if(n_order > 5) + n_order = 5; + n_ambi = (n_order + 1)*(n_order + 1); + } + else + { + if(n_order > 12) + n_order = 12; + n_dim = 2; + n_ambi = 2 * n_order + 1; + } + + if(n_real_ls < 1) + n_real_ls = 1; + if(n_pht_ls < 0) + n_pht_ls = 0; + + if((n_real_ls+n_pht_ls) < n_ambi) + { + post("bin_ambi_reduced_decode_fir2-WARNING: Number of all Loudspeakers < Number of Ambisonic-Channels !!!!"); + } + + if(firsize < 32) + firsize = 32; + + x->x_n_dim = n_dim; + x->x_n_ambi = n_ambi; + x->x_n_real_ls = n_real_ls; + x->x_n_pht_ls = n_pht_ls; + x->x_n_order = n_order; + x->x_firsize = firsize; + + x->x_hrir_filename = (t_symbol **)getbytes(x->x_n_real_ls * sizeof(t_symbol *)); + x->x_s_hrir = (t_symbol **)getbytes(x->x_n_real_ls * sizeof(t_symbol *)); + x->x_s_hrir_red = (t_symbol **)getbytes(x->x_n_ambi * sizeof(t_symbol *)); + + j = x->x_n_real_ls; + for(i=0; i<j; i++) + { + sprintf(buf, "%d_%d_%s", prefix, i+1, s_hrir->s_name); + x->x_s_hrir[i] = gensym(buf); + } + + for(i=0; i<n_ambi; i++) + { + sprintf(buf, "%d_%d_%s", prefix, i+1, s_hrir_red->s_name); + x->x_s_hrir_red[i] = gensym(buf); + } + + sprintf(buf, "%d_%s", prefix, s_fade_out_hrir->s_name); + x->x_s_fade_out_hrir = gensym(buf); + + x->x_inv_work1 = (double *)getbytes(x->x_n_ambi * x->x_n_ambi * sizeof(double)); + x->x_inv_work2 = (double *)getbytes(2 * x->x_n_ambi * x->x_n_ambi * sizeof(double)); + x->x_inv_buf2 = (double *)getbytes(2 * x->x_n_ambi * sizeof(double)); + x->x_transp = (double *)getbytes((x->x_n_real_ls+x->x_n_pht_ls) * x->x_n_ambi * sizeof(double)); + x->x_ls_encode = (double *)getbytes((x->x_n_real_ls+x->x_n_pht_ls) * x->x_n_ambi * sizeof(double)); + x->x_prod2 = (double *)getbytes((x->x_n_real_ls+x->x_n_pht_ls) * x->x_n_ambi * sizeof(double)); + x->x_prod3 = (double *)getbytes(x->x_n_real_ls * x->x_n_ambi * sizeof(double)); + x->x_ambi_channel_weight = (double *)getbytes(x->x_n_ambi * sizeof(double)); + + x->x_delta = (int *)getbytes((x->x_n_real_ls+x->x_n_pht_ls) * sizeof(int)); + x->x_phi = (int *)getbytes((x->x_n_real_ls+x->x_n_pht_ls) * sizeof(int)); + x->x_phi_sym = (int *)getbytes(x->x_n_real_ls * sizeof(int)); + x->x_sym_flag = (int *)getbytes(x->x_n_real_ls * sizeof(int)); + + x->x_beg_fade_out_hrir = (float *)0; + x->x_beg_hrir = (float *)getbytes(x->x_firsize * x->x_n_real_ls * sizeof(float)); + x->x_beg_hrir_red = (float **)getbytes(x->x_n_ambi * sizeof(float *)); + + x->x_sqrt3 = sqrt(3.0); + x->x_sqrt5_2 = sqrt(5.0) / 2.0; + x->x_sqrt6_4 = sqrt(6.0) / 4.0; + x->x_sqrt10_4 = sqrt(10.0) / 4.0; + x->x_sqrt15_2 = sqrt(15.0) / 2.0; + x->x_sqrt35_8 = sqrt(35.0) / 8.0; + x->x_sqrt70_4 = sqrt(70.0) / 4.0; + x->x_sqrt126_16 = sqrt(126.0) / 16.0; + x->x_sqrt315_8 = sqrt(315.0) / 8.0; + x->x_sqrt105_4 = sqrt(105.0) / 4.0; + x->x_pi_over_180 = 4.0 * atan(1.0) / 180.0; + x->x_sing_range = 1.0e-10; + x->x_seq_ok = 1; + for(i=0; i<n_ambi; i++) + x->x_ambi_channel_weight[i] = 1.0; + + outlet_new(&x->x_obj, &s_list); + x->x_out_sign_sum = outlet_new(&x->x_obj, &s_list); + return(x); + } + else + { + post("bin_ambi_reduced_decode_fir2-ERROR: need 1 float + 3 symbols + 5 floats arguments:"); + post(" prefix(unique-number) + hrir_loudspeaker_name + hrir_redused_name + hrir_fade_out_name +"); + post(" + ambi_order + ambi_dimension + number_of_real_loudspeakers + "); + post(" + number_of_phantom_loudspeakers + firsize"); + return(0); + } +} + +void bin_ambi_reduced_decode_fir2_setup(void) +{ + bin_ambi_reduced_decode_fir2_class = class_new(gensym("bin_ambi_reduced_decode_fir2"), (t_newmethod)bin_ambi_reduced_decode_fir2_new, (t_method)bin_ambi_reduced_decode_fir2_free, + sizeof(t_bin_ambi_reduced_decode_fir2), 0, A_GIMME, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_real_ls, gensym("real_ls"), A_GIMME, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_pht_ls, gensym("pht_ls"), A_GIMME, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_calc_pinv, gensym("calc_pinv"), 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_ipht_ireal_muladd, gensym("ipht_ireal_muladd"), A_GIMME, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_load_HRIR, gensym("load_HRIR"), A_GIMME, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_check_HRIR_arrays, gensym("check_HRIR_arrays"), A_FLOAT, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_check_HRIR_RED_arrays, gensym("check_HRIR_RED_arrays"), A_FLOAT, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_calc_reduced, gensym("calc_reduced"), A_FLOAT, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_calc_sym, gensym("calc_sym"), 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_ambi_weight, gensym("ambi_weight"), A_GIMME, 0); + class_addmethod(bin_ambi_reduced_decode_fir2_class, (t_method)bin_ambi_reduced_decode_fir2_sing_range, gensym("sing_range"), A_DEFFLOAT, 0); + class_sethelpsymbol(bin_ambi_reduced_decode_fir2_class, gensym("iemhelp2/help-bin_ambi_reduced_decode_fir2")); +} +/* +Reihenfolge: +n_ls x bin_ambi_reduced_decode_fir2_ls + +bin_ambi_reduced_decode_fir2_calc_pinv + +n_ls x bin_ambi_reduced_decode_fir2_load_HRIR + +n_ls x bin_ambi_reduced_decode_fir2_check_HRIR_arrays + +n_ambi x bin_ambi_reduced_decode_fir2_check_HRTF_arrays + +n_ambi x bin_ambi_reduced_decode_fir2_calc_reduced + +bin_ambi_reduced_decode_fir2_calc_sym + +*/ |