ref: 49ff67154a0150cade077dcd040d68bc6a200b17
dir: /h/clamp.h/
typedef struct { SPFLOAT min; SPFLOAT max; } sp_clamp; int sp_clamp_create(sp_clamp **p); int sp_clamp_destroy(sp_clamp **p); int sp_clamp_init(sp_data *sp, sp_clamp *p); int sp_clamp_compute(sp_data *sp, sp_clamp *p, SPFLOAT *in, SPFLOAT *out);