ref: d8ddc90c497260a1f22cfbbc72c58ba1434eb366
dir: /h/switch.h/
typedef struct { SPFLOAT mode; } sp_switch; int sp_switch_create(sp_switch **p); int sp_switch_destroy(sp_switch **p); int sp_switch_init(sp_data *sp, sp_switch *p); int sp_switch_compute(sp_data *sp, sp_switch *p, SPFLOAT *trig, SPFLOAT *in1, SPFLOAT *in2, SPFLOAT *out);