int t_butbp(sp_test *tst, sp_data *sp, const char *hash)
{
sp_srand(sp, 0);
uint32_t n;
int fail = 0;
SPFLOAT in = 0;
SPFLOAT out = 0;
UserData ud;
ud.counter = 0;
sp_noise_create(&ud.ns);
sp_butbp_create(&ud.butbp);
sp_noise_init(sp, ud.ns);
sp_butbp_init(sp, ud.butbp);
for(n = 0; n < tst->size; n++) {
in = 0;
out = 0;
if(ud.counter == 0) {
ud.butbp->freq= 500 + sp_rand(sp) % 4000;
}
sp_noise_compute(sp, ud.ns, NULL, &in);
sp_butbp_compute(sp, ud.butbp, &in, &out);
ud.counter = (ud.counter + 1) % 5000;
sp_test_add_sample(tst, out);
}
fail = sp_test_verify(tst, hash);
sp_noise_destroy(&ud.ns);
sp_butbp_destroy(&ud.butbp);
if(fail) return SP_NOT_OK;
else return SP_OK;
}
int t_pluck(sp_test *tst, sp_data *sp, const char *hash)
{
uint32_t n;
int fail = 0;
UserData ud;
sp_srand(sp, 1337);
SPFLOAT pluck = 0, met = 0;
SPFLOAT notes[] = {60, 63, 67, 70, 74};
sp_pluck_create(&ud.pluck);
sp_metro_create(&ud.met);
sp_pluck_init(sp, ud.pluck, 400);
sp_metro_init(sp, ud.met);
ud.met->freq = 4;
for(n = 0; n < tst->size; n++) {
pluck = 0, met = 0;
sp_metro_compute(sp, ud.met, NULL, &met);
if(met) {
ud.pluck->freq = sp_midi2cps(notes[sp_rand(sp) % 5]);
}
sp_pluck_compute(sp, ud.pluck, &met, &pluck);
sp_test_add_sample(tst, pluck);
}
fail = sp_test_verify(tst, hash);
sp_pluck_destroy(&ud.pluck);
sp_metro_destroy(&ud.met);
if(fail) return SP_NOT_OK;
else return SP_OK;
}
static void sp_pluck_reinit(sp_data *sp, sp_pluck *p)
{
int n;
SPFLOAT val = 0;
SPFLOAT *ap = (SPFLOAT *)p->auxch.ptr;
for (n=p->npts; n--; ) {
val = (SPFLOAT) ((SPFLOAT) sp_rand(sp) / SP_RANDMAX);
*ap++ = (val * 2) - 1;
}
p->phs256 = 0;
}
int sp_tseq_compute(sp_data *sp, sp_tseq *p, SPFLOAT *trig, SPFLOAT *val)
{
if(*trig != 0){
if(p->shuf) {
p->pos = sp_rand(sp) % p->ft->size;
} else {
p->pos = (p->pos + 1) % p->ft->size;
}
p->val = p->ft->tbl[p->pos];
}
*val = p->val;
return SP_OK;
}
int t_delay(sp_test *tst, sp_data *sp, const char *hash)
{
uint32_t n;
int fail = 0;
SPFLOAT osc = 0, delay = 0, met = 0, tenv = 0;
UserData ud;
sp_delay_create(&ud.delay);
sp_osc_create(&ud.osc);
sp_ftbl_create(sp, &ud.ft, 2048);
sp_metro_create(&ud.met);
sp_tenv_create(&ud.tenv);
sp_delay_init(sp, ud.delay, 0.75 * 0.5);
ud.delay->feedback = 0.5;
sp_gen_sine(sp, ud.ft);
sp_osc_init(sp, ud.osc, ud.ft, 0);
ud.osc->amp = 0.5;
sp_metro_init(sp, ud.met);
ud.met->freq = 1;
sp_tenv_init(sp, ud.tenv);
ud.tenv->atk = 0.005;
ud.tenv->hold = 0.1;
ud.tenv->rel = 0.1;
for(n = 0; n < tst->size; n++) {
osc = 0, delay = 0, met = 0, tenv = 0;
sp_metro_compute(sp, ud.met, NULL, &met);
sp_tenv_compute(sp, ud.tenv, &met, &tenv);
if(met) {
ud.osc->freq = 100 + sp_rand(sp) % 500;
}
sp_osc_compute(sp, ud.osc, NULL, &osc);
osc *= tenv;
sp_delay_compute(sp, ud.delay, &osc, &delay);
sp_test_add_sample(tst, osc + delay);
}
if(sp_test_compare(tst, hash) == SP_NOT_OK) {
printf("Generated hash %s does not match reference hash %s\n",
tst->md5string, hash);
fail = 1;
}
if(fail) return SP_NOT_OK;
else return SP_OK;
}
int sporth_slick(sporth_stack *stack, void *ud)
{
plumber_data *pd = ud;
char *ftname;
uint32_t index = 0;
slist_d *sl;
char **str = NULL;
switch(pd->mode){
case PLUMBER_CREATE:
str = malloc(sizeof(char *));
plumber_add_ugen(pd, SPORTH_SLICK, str);
if(sporth_check_args(stack, "s") != SPORTH_OK) {
plumber_print(pd,"Not enough arguments for slick\n");
return PLUMBER_NOTOK;
}
ftname = sporth_stack_pop_string(stack);
if(plumber_ftmap_search_userdata(pd,ftname, (void *)&sl) !=
PLUMBER_OK) {
plumber_print(pd, "Could not find ftable %s\n", ftname);
return PLUMBER_NOTOK;
}
index = (uint32_t)(((SPFLOAT)sp_rand(pd->sp) / SP_RANDMAX) * sl->len);
*str = sl->list[index];
sporth_stack_push_string(stack, &sl->list[index]);
break;
case PLUMBER_INIT:
str = pd->last->ud;
sporth_stack_pop_string(stack);
sporth_stack_push_string(stack, str);
break;
case PLUMBER_COMPUTE:
break;
case PLUMBER_DESTROY:
str = pd->last->ud;
free(str);
break;
default:
plumber_print(pd,"Error: Unknown mode!");
break;
}
return PLUMBER_OK;
}
static SPFLOAT glottis_compute(sp_data *sp, glottis *glot, SPFLOAT lambda)
{
SPFLOAT out;
SPFLOAT aspiration;
SPFLOAT noise;
SPFLOAT t;
SPFLOAT intensity;
out = 0;
intensity = 1.0;
glot->time_in_waveform += glot->T;
if(glot->time_in_waveform > glot->waveform_length) {
glot->time_in_waveform -= glot->waveform_length;
glottis_setup_waveform(glot, lambda);
}
t = (glot->time_in_waveform / glot->waveform_length);
if(t > glot->Te) {
out = (-exp(-glot->epsilon * (t-glot->Te)) + glot->shift) / glot->delta;
} else {
out = glot->E0 * exp(glot->alpha * t) * sin(glot->omega * t);
}
noise = 2.0 * ((SPFLOAT) sp_rand(sp) / SP_RANDMAX) - 1;
aspiration = intensity * (1 - sqrt(glot->tenseness)) * 0.3 * noise;
aspiration *= 0.2;
out += aspiration;
return out;
}
int t_butlp(sp_test *tst, sp_data *sp, const char *hash)
{
uint32_t n;
int fail = 0;
SPFLOAT in = 0;
SPFLOAT out = 0;
udata ud;
ud.counter = 0;
sp_noise_create(&ud.ns);
sp_butlp_create(&ud.butlp);
sp_noise_init(sp, ud.ns);
sp_butlp_init(sp, ud.butlp);
for(n = 0; n < tst->size; n++) {
in = 0;
out = 0;
if(ud.counter == 0) {
ud.butlp->freq= 500 + sp_rand(sp) % 4000;
}
sp_noise_compute(sp, ud.ns, NULL, &in);
sp_butlp_compute(sp, ud.butlp, &in, &out);
ud.counter = (ud.counter + 1) % 5000;
sp_test_add_sample(tst, out);
}
if(sp_test_compare(tst, hash) == SP_NOT_OK) {
printf("Generated hash %s does not match reference hash %s\n",
tst->md5string, hash);
fail = 1;
}
sp_noise_destroy(&ud.ns);
sp_butlp_destroy(&ud.butlp);
if(fail) return SP_NOT_OK;
else return SP_OK;
}
static SPFLOAT noise_tick(sp_data *sp)
{
SPFLOAT temp;
temp = 1.0 * sp_rand(sp) - 1073741823.5;
return temp * (1.0 / 1073741823.0);
}
static int my_random(sp_data *sp, int max)
{
return (sp_rand(sp) % (max + 1));
}