Autres/audacity
1
0
Fork 0
mirror of https://github.com/cookiengineer/audacity synced 2025-11-28 16:20:12 +01:00
Code Issues Releases Wiki Activity

Update Nyquist to v3.09.

Browse Source
This commit is contained in:
Leland Lucius
2015-04-07 22:10:17 -05:00
parent f88b27e6d8
commit 9fb0ce5b82
358 changed files with 26327 additions and 7043 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
lib-src/libnyquist/nyquist/tran/buzz.c
View File

@@ -9,7 +9,7 @@
#include "cext.h"
#include "buzz.h"
void buzz_free();
void buzz_free(snd_susp_type a_susp);
typedef struct buzz_susp_struct {
@@ -40,8 +40,9 @@ typedef struct buzz_susp_struct {
#include "sine.h"
void buzz_s_fetch(register buzz_susp_type susp, snd_list_type snd_list)
void buzz_s_fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
buzz_susp_type susp = (buzz_susp_type) a_susp;
int cnt = 0; /* how many samples computed */
int togo;
int n;
@@ -73,6 +74,7 @@ void buzz_s_fetch(register buzz_susp_type susp, snd_list_type snd_list)
if (susp->terminate_cnt != UNKNOWN &&
susp->terminate_cnt <= susp->susp.current + cnt + togo) {
togo = susp->terminate_cnt - (susp->susp.current + cnt);
if (togo < 0) togo = 0; /* avoids rounding errros */
if (togo == 0) break;
}
@@ -84,6 +86,7 @@ void buzz_s_fetch(register buzz_susp_type susp, snd_list_type snd_list)
* AND cnt > 0 (we're not at the beginning of the
* output block).
*/
if (to_stop < 0) to_stop = 0; /* avoids rounding errors */
if (to_stop < togo) {
if (to_stop == 0) {
if (cnt) {
@@ -109,10 +112,9 @@ void buzz_s_fetch(register buzz_susp_type susp, snd_list_type snd_list)
s_fm_ptr_reg = susp->s_fm_ptr;
out_ptr_reg = out_ptr;
if (n) do { /* the inner sample computation loop */
long table_index;
long table_index;
double x1;
sample_type num, denom, samp;
table_index = (long) phase_reg;
x1 = sine_table[table_index];
denom = (sample_type) (x1 + (phase_reg - table_index) *
@@ -159,8 +161,9 @@ void buzz_s_fetch(register buzz_susp_type susp, snd_list_type snd_list)
} /* buzz_s_fetch */
void buzz_i_fetch(register buzz_susp_type susp, snd_list_type snd_list)
void buzz_i_fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
buzz_susp_type susp = (buzz_susp_type) a_susp;
int cnt = 0; /* how many samples computed */
int togo;
int n;
@@ -196,6 +199,7 @@ void buzz_i_fetch(register buzz_susp_type susp, snd_list_type snd_list)
if (susp->terminate_cnt != UNKNOWN &&
susp->terminate_cnt <= susp->susp.current + cnt + togo) {
togo = susp->terminate_cnt - (susp->susp.current + cnt);
if (togo < 0) togo = 0; /* avoids rounding errros */
if (togo == 0) break;
}
@@ -207,6 +211,7 @@ void buzz_i_fetch(register buzz_susp_type susp, snd_list_type snd_list)
* AND cnt > 0 (we're not at the beginning of the
* output block).
*/
if (to_stop < 0) to_stop = 0; /* avoids rounding errors */
if (to_stop < togo) {
if (to_stop == 0) {
if (cnt) {
@@ -233,7 +238,7 @@ void buzz_i_fetch(register buzz_susp_type susp, snd_list_type snd_list)
s_fm_x1_sample_reg = susp->s_fm_x1_sample;
out_ptr_reg = out_ptr;
if (n) do { /* the inner sample computation loop */
long table_index;
long table_index;
double x1;
sample_type num, denom, samp;
if (s_fm_pHaSe_ReG >= 1.0) {
@@ -245,7 +250,6 @@ void buzz_i_fetch(register buzz_susp_type susp, snd_list_type snd_list)
susp_check_term_log_samples_break(s_fm, s_fm_ptr, s_fm_cnt, s_fm_x1_sample_reg);
s_fm_x1_sample_reg = susp_current_sample(s_fm, s_fm_ptr);
}
table_index = (long) phase_reg;
x1 = sine_table[table_index];
denom = (sample_type) (x1 + (phase_reg - table_index) *
@@ -293,8 +297,9 @@ void buzz_i_fetch(register buzz_susp_type susp, snd_list_type snd_list)
} /* buzz_i_fetch */
void buzz_r_fetch(register buzz_susp_type susp, snd_list_type snd_list)
void buzz_r_fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
buzz_susp_type susp = (buzz_susp_type) a_susp;
int cnt = 0; /* how many samples computed */
sample_type s_fm_val;
int togo;
@@ -341,6 +346,7 @@ void buzz_r_fetch(register buzz_susp_type susp, snd_list_type snd_list)
if (susp->terminate_cnt != UNKNOWN &&
susp->terminate_cnt <= susp->susp.current + cnt + togo) {
togo = susp->terminate_cnt - (susp->susp.current + cnt);
if (togo < 0) togo = 0; /* avoids rounding errros */
if (togo == 0) break;
}
@@ -352,6 +358,7 @@ void buzz_r_fetch(register buzz_susp_type susp, snd_list_type snd_list)
* AND cnt > 0 (we're not at the beginning of the
* output block).
*/
if (to_stop < 0) to_stop = 0; /* avoids rounding errors */
if (to_stop < togo) {
if (to_stop == 0) {
if (cnt) {
@@ -376,10 +383,9 @@ void buzz_r_fetch(register buzz_susp_type susp, snd_list_type snd_list)
phase_reg = susp->phase;
out_ptr_reg = out_ptr;
if (n) do { /* the inner sample computation loop */
long table_index;
long table_index;
double x1;
sample_type num, denom, samp;
table_index = (long) phase_reg;
x1 = sine_table[table_index];
denom = (sample_type) (x1 + (phase_reg - table_index) *
@@ -425,11 +431,9 @@ void buzz_r_fetch(register buzz_susp_type susp, snd_list_type snd_list)
} /* buzz_r_fetch */
void buzz_toss_fetch(susp, snd_list)
register buzz_susp_type susp;
snd_list_type snd_list;
{
long final_count = susp->susp.toss_cnt;
void buzz_toss_fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
buzz_susp_type susp = (buzz_susp_type) a_susp;
time_type final_time = susp->susp.t0;
long n;
@@ -444,25 +448,28 @@ void buzz_toss_fetch(susp, snd_list)
susp->s_fm_ptr += n;
susp_took(s_fm_cnt, n);
susp->susp.fetch = susp->susp.keep_fetch;
(*(susp->susp.fetch))(susp, snd_list);
(*(susp->susp.fetch))(a_susp, snd_list);
}
void buzz_mark(buzz_susp_type susp)
void buzz_mark(snd_susp_type a_susp)
{
buzz_susp_type susp = (buzz_susp_type) a_susp;
sound_xlmark(susp->s_fm);
}
void buzz_free(buzz_susp_type susp)
void buzz_free(snd_susp_type a_susp)
{
buzz_susp_type susp = (buzz_susp_type) a_susp;
sound_unref(susp->s_fm);
ffree_generic(susp, sizeof(buzz_susp_node), "buzz_free");
}
void buzz_print_tree(buzz_susp_type susp, int n)
void buzz_print_tree(snd_susp_type a_susp, int n)
{
buzz_susp_type susp = (buzz_susp_type) a_susp;
indent(n);
stdputstr("s_fm:");
sound_print_tree_1(susp->s_fm, n);
@@ -486,6 +493,12 @@ sound_type snd_make_buzz(long n, rate_type sr, double hz, time_type t0, sound_ty
s_fm->scale *= hz != 0 ? (sample_type) (susp->ph_incr / hz)
: (sample_type) (SINE_TABLE_LEN * 0.5 / sr);
/* make sure no sample rate is too high */
if (s_fm->sr > sr) {
sound_unref(s_fm);
snd_badsr();
}
/* select a susp fn based on sample rates */
interp_desc = (interp_desc << 2) + interp_style(s_fm, sr);
switch (interp_desc) {
@@ -504,8 +517,8 @@ sound_type snd_make_buzz(long n, rate_type sr, double hz, time_type t0, sound_ty
/* how many samples to toss before t0: */
susp->susp.toss_cnt = (long) ((t0 - t0_min) * sr + 0.5);
if (susp->susp.toss_cnt > 0) {
susp->susp.keep_fetch = susp->susp.fetch;
susp->susp.fetch = buzz_toss_fetch;
susp->susp.keep_fetch = susp->susp.fetch;
susp->susp.fetch = buzz_toss_fetch;
}
/* initialize susp state */