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);