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split process in read and write in bw_delay

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This commit is contained in:
Stefano D'Angelo 2023-03-09 16:14:02 +01:00
parent a817b23f50
commit 9b746f746f
1 changed files with 14 additions and 7 deletions
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21
include/bw_delay.h
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@ -180,6 +180,18 @@ static inline void bw_delay_reset_state(const bw_delay_coeffs *BW_RESTRICT coeff
state->idx = 0;
}
static float bw_delay_read(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, BW_SIZE_T d_int, float d_frac) {
const BW_SIZE_T n = (state->idx + (state->idx >= d_int ? 0 : coeffs->len)) - d_int;
const BW_SIZE_T p = (n ? n : coeffs->len) - 1;
return state->buf[n] + d_frac * (state->buf[p] - state->buf[n]);
}
static void bw_delay_write(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, float x) {
state->buf[state->idx] = x;
state->idx++;
state->idx = state->idx == coeffs->len ? 0 : state->idx;
}
static inline void bw_delay_update_coeffs_ctrl(bw_delay_coeffs *BW_RESTRICT coeffs) {
}
@ -192,13 +204,8 @@ static inline float bw_delay_process1(const bw_delay_coeffs *BW_RESTRICT coeffs,
const float f = bw_floorf(s);
const float d = s - f;
const BW_SIZE_T j = (BW_SIZE_T)f;
const BW_SIZE_T n = (state->idx + (state->idx >= j ? 0 : coeffs->len)) - j;
const BW_SIZE_T p = (n ? n : coeffs->len) - 1;
state->buf[state->idx] = x;
const float y = state->buf[n] + d * (state->buf[p] - state->buf[n]);
state->idx++;
state->idx = state->idx == coeffs->len ? 0 : state->idx;
return y;
bw_delay_write(coeffs, state, x);
return bw_delay_read(coeffs, state, j, d);
}
static inline void bw_delay_process(bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, const float *x, float *y, int n_samples) {