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#include "stdio.h"
#ifndef mips
#include "stdlib.h"
#endif
#include "xlisp.h"
#include "sound.h"
#include "falloc.h"
#include "cext.h"
#include "instrsitar.h"
void sitar_free(snd_susp_type a_susp);
typedef struct sitar_susp_struct {
snd_susp_node susp;
int64_t terminate_cnt;
struct instr *mysitar;
int temp_ret_value;
} sitar_susp_node, *sitar_susp_type;
#include "instr.h"
void sitar__fetch(snd_susp_type a_susp, snd_list_type snd_list)
{
sitar_susp_type susp = (sitar_susp_type) a_susp;
int cnt = 0; /* how many samples computed */
int togo;
int n;
sample_block_type out;
register sample_block_values_type out_ptr;
register sample_block_values_type out_ptr_reg;
register struct instr * mysitar_reg;
falloc_sample_block(out, "sitar__fetch");
out_ptr = out->samples;
snd_list->block = out;
while (cnt < max_sample_block_len) { /* outer loop */
/* first compute how many samples to generate in inner loop: */
/* don't overflow the output sample block: */
togo = max_sample_block_len - cnt;
/* don't run past terminate time */
if (susp->terminate_cnt != UNKNOWN &&
susp->terminate_cnt <= susp->susp.current + cnt + togo) {
togo = (int) (susp->terminate_cnt - (susp->susp.current + cnt));
if (togo < 0) togo = 0; /* avoids rounding errros */
if (togo == 0) break;
}
n = togo;
mysitar_reg = susp->mysitar;
out_ptr_reg = out_ptr;
if (n) do { /* the inner sample computation loop */
*out_ptr_reg++ = (sample_type) tick(mysitar_reg);
} while (--n); /* inner loop */
susp->mysitar = mysitar_reg;
out_ptr += togo;
cnt += togo;
} /* outer loop */
/* test for termination */
if (togo == 0 && cnt == 0) {
snd_list_terminate(snd_list);
} else {
snd_list->block_len = cnt;
susp->susp.current += cnt;
}
} /* sitar__fetch */
void sitar_free(snd_susp_type a_susp)
{
sitar_susp_type susp = (sitar_susp_type) a_susp;
deleteInstrument(susp->mysitar);
ffree_generic(susp, sizeof(sitar_susp_node), "sitar_free");
}
void sitar_print_tree(snd_susp_type a_susp, int n)
{
}
sound_type snd_make_sitar(time_type t0, double freq, time_type dur, rate_type sr)
{
register sitar_susp_type susp;
/* sr specified as input parameter */
/* t0 specified as input parameter */
sample_type scale_factor = 1.0F;
falloc_generic(susp, sitar_susp_node, "snd_make_sitar");
susp->mysitar = initInstrument(SITAR, ROUND32(sr));
susp->temp_ret_value = noteOn(susp->mysitar, freq, 1.0);
susp->susp.fetch = sitar__fetch;
susp->terminate_cnt = check_terminate_cnt(ROUNDBIG((dur) * sr));
/* initialize susp state */
susp->susp.free = sitar_free;
susp->susp.sr = sr;
susp->susp.t0 = t0;
susp->susp.mark = NULL;
susp->susp.print_tree = sitar_print_tree;
susp->susp.name = "sitar";
susp->susp.log_stop_cnt = UNKNOWN;
susp->susp.current = 0;
return sound_create((snd_susp_type)susp, t0, sr, scale_factor);
}
sound_type snd_sitar(time_type t0, double freq, time_type dur, rate_type sr)
{
return snd_make_sitar(t0, freq, dur, sr);
}
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