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Code Issues Releases Wiki Activity

Update Nyquist to v3.09.

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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
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89
lib-src/libnyquist/nyquist/tran/sampler.c
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@@ -9,7 +9,7 @@
#include "cext.h"
#include "sampler.h"
void sampler_free();
void sampler_free(snd_susp_type a_susp);
typedef struct sampler_susp_struct {
@@ -39,8 +39,9 @@ typedef struct sampler_susp_struct {
} sampler_susp_node, *sampler_susp_type;
void sampler_s_fetch(register sampler_susp_type susp, snd_list_type snd_list)
void sampler_s_fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
sampler_susp_type susp = (sampler_susp_type) a_susp;
int cnt = 0; /* how many samples computed */
int togo;
int n;
@@ -73,6 +74,7 @@ void sampler_s_fetch(register sampler_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 sampler_s_fetch(register sampler_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) {
@@ -112,7 +115,7 @@ void sampler_s_fetch(register sampler_susp_type susp, snd_list_type snd_list)
if (n) do { /* the inner sample computation loop */
long table_index;
double x1;
table_index = (long) phase_reg;
table_index = (long) phase_reg;
x1 = table_ptr_reg[table_index];
*out_ptr_reg++ = (sample_type) (x1 + (phase_reg - table_index) *
(table_ptr_reg[table_index + 1] - x1));
@@ -146,8 +149,9 @@ table_index = (long) phase_reg;
} /* sampler_s_fetch */
void sampler_i_fetch(register sampler_susp_type susp, snd_list_type snd_list)
void sampler_i_fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
sampler_susp_type susp = (sampler_susp_type) a_susp;
int cnt = 0; /* how many samples computed */
int togo;
int n;
@@ -184,6 +188,7 @@ void sampler_i_fetch(register sampler_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;
}
@@ -195,6 +200,7 @@ void sampler_i_fetch(register sampler_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 +239,7 @@ void sampler_i_fetch(register sampler_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;
table_index = (long) phase_reg;
x1 = table_ptr_reg[table_index];
*out_ptr_reg++ = (sample_type) (x1 + (phase_reg - table_index) *
(table_ptr_reg[table_index + 1] - x1));
@@ -268,8 +274,9 @@ table_index = (long) phase_reg;
} /* sampler_i_fetch */
void sampler_r_fetch(register sampler_susp_type susp, snd_list_type snd_list)
void sampler_r_fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
sampler_susp_type susp = (sampler_susp_type) a_susp;
int cnt = 0; /* how many samples computed */
sample_type s_fm_val;
int togo;
@@ -317,6 +324,7 @@ void sampler_r_fetch(register sampler_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;
}
@@ -328,6 +336,7 @@ void sampler_r_fetch(register sampler_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) {
@@ -355,7 +364,7 @@ void sampler_r_fetch(register sampler_susp_type susp, snd_list_type snd_list)
if (n) do { /* the inner sample computation loop */
long table_index;
double x1;
table_index = (long) phase_reg;
table_index = (long) phase_reg;
x1 = table_ptr_reg[table_index];
*out_ptr_reg++ = (sample_type) (x1 + (phase_reg - table_index) *
(table_ptr_reg[table_index + 1] - x1));
@@ -388,11 +397,9 @@ table_index = (long) phase_reg;
} /* sampler_r_fetch */
void sampler_toss_fetch(susp, snd_list)
register sampler_susp_type susp;
snd_list_type snd_list;
{
long final_count = susp->susp.toss_cnt;
void sampler_toss_fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
sampler_susp_type susp = (sampler_susp_type) a_susp;
time_type final_time = susp->susp.t0;
long n;
@@ -407,26 +414,29 @@ void sampler_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 sampler_mark(sampler_susp_type susp)
void sampler_mark(snd_susp_type a_susp)
{
sampler_susp_type susp = (sampler_susp_type) a_susp;
sound_xlmark(susp->s_fm);
}
void sampler_free(sampler_susp_type susp)
void sampler_free(snd_susp_type a_susp)
{
sampler_susp_type susp = (sampler_susp_type) a_susp;
table_unref(susp->the_table);
sound_unref(susp->s_fm);
ffree_generic(susp, sizeof(sampler_susp_node), "sampler_free");
}
void sampler_print_tree(sampler_susp_type susp, int n)
void sampler_print_tree(snd_susp_type a_susp, int n)
{
sampler_susp_type susp = (sampler_susp_type) a_susp;
indent(n);
stdputstr("s_fm:");
sound_print_tree_1(susp->s_fm, n);
@@ -445,20 +455,41 @@ sound_type snd_make_sampler(sound_type s, double step, double loop_start, rate_t
susp->loop_to = loop_start * s->sr;
susp->the_table = sound_to_table(s);
susp->table_ptr = susp->the_table->samples;
susp->table_len = susp->the_table->length;
{ long index = (long) susp->loop_to;
double frac = susp->loop_to - index;
if (index > round(susp->table_len) ||
index < 0) {
index = 0;
frac = 0;
}
susp->table_ptr[round(susp->table_len)] = /* copy interpolated start to last entry */
(sample_type) (susp->table_ptr[index] * (1.0 - frac) +
susp->table_ptr[index + 1] * frac);};
susp->table_len = susp->the_table->length;;
susp->phase = 0.0;
susp->ph_incr = (s->sr / sr) * hz / step_to_hz(step);
s_fm->scale = (sample_type) (s_fm->scale * (susp->ph_incr / hz));
/* make sure parameters are ok
* the table must have samples
* the loop_start must be before the end of the table
* ph_incr must be positive
* sr should be positive
*/
{ long index = (long) susp->loop_to;
double frac = susp->loop_to - index;
if (susp->the_table->length <= 1) {
xlfail("sampler table length <= 1");
}
if (index > round(susp->table_len) - 2 ||
index < 0) {
xlfail("sampler loop start not within samples");
}
if (susp->ph_incr <= 0) {
xlfail("sampler phase increment <= 0");
}
if (sr <= 0) {
xlfail("sampler sample rate <= 0");
}
/* copy interpolated start to last entry */
susp->table_ptr[round(susp->table_len)] =
(sample_type) (susp->table_ptr[index] * (1.0 - frac) +
susp->table_ptr[index + 1] * frac);};
/* 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);
@@ -478,8 +509,8 @@ sound_type snd_make_sampler(sound_type s, double step, double loop_start, rate_t
/* 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 = sampler_toss_fetch;
susp->susp.keep_fetch = susp->susp.fetch;
susp->susp.fetch = sampler_toss_fetch;
}
/* initialize susp state */