38 lines
841 B
C
38 lines
841 B
C
#ifndef CVU_C_H
|
|
#define CVU_C_H 1
|
|
|
|
#include "cvu_f.h"
|
|
|
|
// Complex fixed-point type
|
|
struct cvu_c
|
|
{
|
|
cvu_f r;
|
|
cvu_f i;
|
|
};
|
|
|
|
// Addition
|
|
//extern void cadd(struct c *l, const struct c *r);
|
|
#define cvu_cadd(x, y) {(x)->r += (y)->r; (x)->i += (y)->i;}
|
|
|
|
// Subtraction
|
|
//extern void csub(struct c *l, const struct c *r);
|
|
#define cvu_csub(x, y) {(x)->r -= (y)->r; (x)->i -= (y)->i;}
|
|
|
|
// Multiplication
|
|
extern void cvu_cmul(struct cvu_c *l, const struct cvu_c *r);
|
|
|
|
// Very inaccurate approximation
|
|
extern cvu_f cvu_cabs(const struct cvu_c *l);
|
|
|
|
// Dot product: Returns l.r^2 + l.i^2
|
|
extern cvu_f cvu_cdot(const struct cvu_c *l);
|
|
|
|
// Multiplication by fixed-point number.
|
|
extern void cvu_cfmul(struct cvu_c *l, cvu_f r);
|
|
|
|
// Convert from polar to coordinate representation
|
|
extern void cvu_c_from_polar(struct cvu_c *c, cvu_f phi, cvu_f d);
|
|
|
|
#endif
|
|
|