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/*
vbap.h:
Copyright (C) 2000 Ville Pulkki
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
#define LOWEST_ACCEPTABLE_WT FL(0.0)
#define CHANNELS 128
#define MIN_VOL_P_SIDE_LGTH FL(0.01)
typedef struct {
MYFLT x;
MYFLT y;
MYFLT z;
} CART_VEC;
typedef struct {
MYFLT azi;
MYFLT ele;
MYFLT length;
} ANG_VEC;
/* A struct for gain factors */
typedef struct {
MYFLT wt1, wt2, wt3;
MYFLT *out_ptr1, *out_ptr2, *out_ptr3;
} OUT_WTS;
/* A struct for a loudspeaker triplet or pair (set) */
typedef struct {
int32_t ls_nos[3];
MYFLT ls_mx[9];
MYFLT set_gains[3];
MYFLT smallest_wt;
int32_t neg_g_am;
} LS_SET;
/* VBAP structure of n loudspeaker panning */
typedef struct {
int32_t number;
MYFLT beg_gains[CHANNELS];
MYFLT curr_gains[CHANNELS];
MYFLT end_gains[CHANNELS];
MYFLT updated_gains[CHANNELS];
int32_t dim;
AUXCH aux;
LS_SET *ls_sets;
int32_t ls_am;
int32_t ls_set_am;
CART_VEC cart_dir;
CART_VEC spread_base;
ANG_VEC ang_dir;
} VBAP_DATA;
typedef struct {
OPDS h; /* required header */
MYFLT *out_array[CHANNELS];
MYFLT *audio, *azi, *ele, *spread, *layout;
VBAP_DATA q;
} VBAP;
typedef struct {
OPDS h; /* required header */
ARRAYDAT *tabout;
MYFLT *audio, *azi, *ele, *spread, *layout;
VBAP_DATA q;
} VBAPA;
typedef struct {
int32_t number;
MYFLT gains[CHANNELS];
int32_t dim;
AUXCH aux;
LS_SET *ls_sets;
int32_t ls_am;
int32_t ls_set_am;
CART_VEC cart_dir;
CART_VEC spread_base;
ANG_VEC ang_dir;
} VBAP1_DATA;
typedef struct {
OPDS h; /* required header */
MYFLT *out_array[CHANNELS];
MYFLT *azi, *ele, *spread, *layout;
VBAP1_DATA q;
} VBAP1;
typedef struct {
OPDS h; /* required header */
ARRAYDAT *tabout;
MYFLT *azi, *ele, *spread, *layout;
VBAP1_DATA q;
} VBAPA1;
/* VBAP structure of loudspeaker moving panning */
typedef struct {
MYFLT gains[CHANNELS];
int32_t number;
int32_t upd_interval;
int32_t dim;
AUXCH aux;
LS_SET *ls_sets;
int32_t ls_am;
int32_t ls_set_am;
CART_VEC cart_dir;
CART_VEC spread_base;
ANG_VEC ang_dir, prev_ang_dir, next_ang_dir;
int32_t point_change_interval, point_change_counter, curr_fld, next_fld;
MYFLT ele_vel;
MYFLT end_gains[CHANNELS];
} VBAP1_MOVE_DATA;
typedef struct {
OPDS h; /* required header */
MYFLT *out_array[CHANNELS];
MYFLT *dur, *spread, *field_am,
*fld[VARGMAX-3]; /* field_am positive: point to point
negative: angle velocities */
VBAP1_MOVE_DATA q;
} VBAP1_MOVING;
typedef struct {
OPDS h; /* required header */
ARRAYDAT *tabout;
MYFLT *dur, *spread, *field_am,
*fld[VARGMAX-3]; /* field_am positive: point to point
negative: angle velocities */
VBAP1_MOVE_DATA q;
} VBAPA1_MOVING;
/* VBAP structure of loudspeaker moving panning */
typedef struct {
MYFLT beg_gains[CHANNELS];
MYFLT curr_gains[CHANNELS];
MYFLT updated_gains[CHANNELS];
int32_t number;
int32_t upd_interval;
int32_t dim;
AUXCH aux;
LS_SET *ls_sets;
int32_t ls_am;
int32_t ls_set_am;
CART_VEC cart_dir;
CART_VEC spread_base;
ANG_VEC ang_dir, prev_ang_dir, next_ang_dir;
int32_t point_change_interval, point_change_counter, curr_fld, next_fld;
MYFLT ele_vel;
MYFLT end_gains[CHANNELS];
} VBAP_MOVE_DATA;
typedef struct {
OPDS h; /* required header */
MYFLT *out_array[CHANNELS];
MYFLT *audio, *dur, *spread, *field_am,
*fld[VARGMAX-4]; /* field_am positive: point to point
negative: angle velocities */
VBAP_MOVE_DATA q;
} VBAP_MOVING;
typedef struct {
OPDS h; /* required header */
ARRAYDAT *tabout;
MYFLT *audio, *dur, *spread, *field_am,
*fld[VARGMAX-4]; /* field_am positive: point to point
negative: angle velocities */
VBAP_MOVE_DATA q;
} VBAPA_MOVING;
typedef struct {
OPDS h; /* required header */
MYFLT *dim, *ls_amount;
MYFLT *f[2*CHANNELS];
} VBAP_LS_INIT;
typedef struct {
OPDS h; /* required header */
MYFLT *dim, *ls_amount;
ARRAYDAT *a;
} VBAP_LS_INITA;
/* A struct for a loudspeaker instance */
typedef struct {
CART_VEC coords;
ANG_VEC angles;
int32_t channel_nbr;
} ls;
/* A struct for all loudspeakers */
typedef struct ls_triplet_chain {
int32_t ls_nos[3];
MYFLT inv_mx[9];
struct ls_triplet_chain *next;
} ls_triplet_chain;
/* functions */
void angle_to_cart_II( ANG_VEC *from, CART_VEC *to);
int32_t lines_intersect(int32_t i,int32_t j,int32_t k,int32_t l, ls lss[]);
MYFLT vec_angle(CART_VEC v1, CART_VEC v2);
void vec_mean(CART_VEC v1, CART_VEC v2, CART_VEC *v3);
MYFLT angle_in_base(CART_VEC vb1,CART_VEC vb2,CART_VEC vec);
void cross_prod(CART_VEC v1,CART_VEC v2,
CART_VEC *res) ;
/* void sort_angles(MYFLT angles[], int32_t sorted_angles[], */
/* int32_t ls_amount); */
/* void remove_connections_in_planey(int32_t i,int32_t j,int32_t k,int32_t l, */
/* ls lss[CHANNELS], */
/* int32_t connections[CHANNELS][CHANNELS]); */
int32_t calc_2D_inv_tmatrix(MYFLT azi1,MYFLT azi2, MYFLT inv_mat[4]);
extern void cart_to_angle(CART_VEC cvec, ANG_VEC *avec);
extern void angle_to_cart(ANG_VEC avec, CART_VEC *cvec);
extern void normalize_wts(OUT_WTS *wts);
extern int32_t vbap_control(CSOUND*, VBAP_DATA *p, MYFLT*, MYFLT*, MYFLT*);
void calc_vbap_gns(int32_t ls_set_am, int32_t dim, LS_SET *sets,
MYFLT *gains, int32_t ls_amount,
CART_VEC cart_dir);
void scale_angles(ANG_VEC *avec);
MYFLT vol_p_side_lgth(int32_t i, int32_t j, int32_t k, ls lss[]);
void new_spread_dir(CART_VEC *spreaddir, CART_VEC vscartdir,
CART_VEC spread_base, MYFLT azi, MYFLT spread);
void new_spread_base(CART_VEC spreaddir, CART_VEC vscartdir,
MYFLT spread, CART_VEC *spread_base);
/* VBAP structure for ZAK loudspeaker panning */
typedef struct {
OPDS h; /* required header */
MYFLT *numb, *ndx, *audio, *azi, *ele, *spread, *layout;
int32_t n;
MYFLT *out_array;
AUXCH auxch;
AUXCH aux;
MYFLT *curr_gains;
MYFLT *beg_gains;
MYFLT *end_gains;
MYFLT *updated_gains;
int32_t dim;
LS_SET *ls_sets;
int32_t ls_am;
int32_t ls_set_am;
CART_VEC cart_dir;
CART_VEC spread_base;
ANG_VEC ang_dir;
} VBAP_ZAK;
/* VBAP structure of ZAK loudspeaker moving panning */
typedef struct {
OPDS h; /* required header */
MYFLT *numb, *ndx, *audio, *dur, *spread, *field_am,
*fld[VARGMAX-6]; /* field_am positive: point to point
negative: angle velocities */
int32_t n;
MYFLT *out_array;
AUXCH auxch;
AUXCH aux;
MYFLT *curr_gains;
MYFLT *beg_gains;
MYFLT *end_gains;
MYFLT *updated_gains;
int32_t dim;
LS_SET *ls_sets;
int32_t ls_am;
int32_t ls_set_am;
CART_VEC cart_dir;
CART_VEC spread_base;
ANG_VEC ang_dir, prev_ang_dir, next_ang_dir;
int32_t point_change_interval, point_change_counter, curr_fld, next_fld;
MYFLT ele_vel;
} VBAP_ZAK_MOVING;
int32_t vbap_init(CSOUND *, VBAP *);
int32_t vbap_init_a(CSOUND *, VBAPA *);
int32_t vbap(CSOUND *, VBAP *);
int32_t vbap_a(CSOUND *, VBAPA *);
int32_t vbap_zak_init(CSOUND *, VBAP_ZAK *);
int32_t vbap_zak(CSOUND *, VBAP_ZAK *);
int32_t vbap_ls_init(CSOUND *, VBAP_LS_INIT *);
int32_t vbap_moving_init(CSOUND *, VBAP_MOVING *);
int32_t vbap_moving(CSOUND *, VBAP_MOVING *);
int32_t vbap_moving_init_a(CSOUND *, VBAPA_MOVING *);
int32_t vbap_moving_a(CSOUND *, VBAPA_MOVING *);
int32_t vbap_zak_moving_init(CSOUND *, VBAP_ZAK_MOVING *);
int32_t vbap_zak_moving(CSOUND *, VBAP_ZAK_MOVING *);
int32_t vbap1_init(CSOUND *, VBAP1 *);
int32_t vbap1(CSOUND *, VBAP1 *);
int32_t vbap1_init_a(CSOUND *, VBAPA1 *);
int32_t vbap1a(CSOUND *, VBAPA1 *);
int32_t vbap1_moving_init(CSOUND *, VBAP1_MOVING *);
int32_t vbap1_moving(CSOUND *, VBAP1_MOVING *);
int32_t vbap1_moving_init_a(CSOUND *, VBAPA1_MOVING *);
int32_t
vbap1_moving_a(CSOUND *, VBAPA1_MOVING *);
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