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#ifndef foointerpolhfoo
#define foointerpolhfoo
struct interpol_state {
int frac;
float *coeff;
int *coeff_valid;
int radius;
};
void interpol_init(struct interpol_state *s, int frac, int radius);
void interpol_done(struct interpol_state *s);
float interpol_get(struct interpol_state *s, float *p, int l, float x);
#endif
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