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stuff

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This commit is contained in:
Ellen Arvidsson 2025-06-14 22:44:02 +02:00
parent 67e4b2382b
commit 37bb77bc88
7 changed files with 78 additions and 49 deletions
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65
daisy/scope/osclsk.cpp
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@ -1,7 +1,10 @@
#include "audioc.hpp"
#include "scope.hpp"
#include "osclsk.hpp"
#define AUDIOC_DEBUG
#include "audioc.hpp"
#define _HUUUGE_FLOAT (std::numeric_limits<float>::infinity())
int
@ -166,15 +169,14 @@ osclsk_scope::sample(const float *sig, size_t num)
trig_lkb_num = 0;
sample_trigger(&sig[i], num - i);
}
break;
return;
case osc_state::TRIGGER:
case osc_state::SAMPLE_DONE:
case osc_state::RENDER:
case osc_state::RENDER_DONE:
case osc_state::READY:
sample_trigger(sig, num);
break;
return;
default:
break;
}
@ -200,21 +202,39 @@ osclsk_scope::is_triggering(float sample)
void
osclsk_scope::trig_lkb_wr_block(void)
{
size_t lkb_i, n;
size_t lkb_start, n;
size_t lkb_cpy, lkb_cpy_part;
lkb_i = trig_lkb_idx >= trig_lkb_amount ?
trig_lkb_idx - (trig_lkb_amount) :
OSCLSK_TRIG_LOOKBACK + trig_lkb_idx - (trig_lkb_amount);
if (trig_mode == osc_trig_mode::INSTANT)
lkb_cpy = trig_lkb_num;
else
lkb_cpy = std::min(trig_lkb_num, trig_lkb_amount);
lkb_start = trig_lkb_idx >= lkb_cpy ? trig_lkb_idx - lkb_cpy :
OSCLSK_TRIG_LOOKBACK + trig_lkb_idx - lkb_cpy;
lkb_cpy_part = OSCLSK_TRIG_LOOKBACK - lkb_start >= lkb_cpy ? lkb_cpy :
OSCLSK_TRIG_LOOKBACK - lkb_start;
block_fill = 0;
for (n = 0; n < trig_lkb_amount; n++) {
block_y_max[block_fill] = trig_lkb_y_max[lkb_i];
block_y_min[block_fill] = trig_lkb_y_min[lkb_i];
block_fill++;
lkb_i = (lkb_i + 1) & (OSCLSK_TRIG_LOOKBACK - 1);
std::copy(trig_lkb_y_max + lkb_start,
trig_lkb_y_max + lkb_start + lkb_cpy_part, block_y_max);
std::copy(trig_lkb_y_min + lkb_start,
trig_lkb_y_min + lkb_start + lkb_cpy_part, block_y_min);
block_fill += lkb_cpy_part;
lkb_cpy -= lkb_cpy_part;
if (lkb_cpy > 0) {
std::copy(trig_lkb_y_max, trig_lkb_y_max + lkb_cpy,
block_y_max + lkb_cpy_part);
std::copy(trig_lkb_y_min, trig_lkb_y_min + lkb_cpy,
block_y_min + lkb_cpy_part);
}
block_fill += lkb_cpy;
/* we wanna resume sampling from right after the lookback data,
* so we write partial data points to block as well */
block_y_max[block_fill] = trig_lkb_y_max[trig_lkb_idx];
@ -247,21 +267,22 @@ osclsk_scope::sample_trigger(const float *sig, size_t num)
trig_lkb_idx_nsamp++;
if (trig_lkb_idx_nsamp >= OSCLSK_RATE_DIV) {
trig_lkb_idx++;
trig_lkb_idx = trig_lkb_idx &
(OSCLSK_TRIG_LOOKBACK - 1);
trig_lkb_idx_nsamp = 0;
trig_lkb_num = std::min(trig_lkb_num + 1,
OSCLSK_TRIG_LOOKBACK);
}
trig_lkb_num = std::min(trig_lkb_num + 1,
OSCLSK_TRIG_LOOKBACK);
trig_lkb_idx =
trig_lkb_idx & (OSCLSK_TRIG_LOOKBACK - 1);
}
/* only do triggering checks in TRIGGER state and out lookback buffer is
* full enough */
if (st != osc_state::TRIGGER || trig_lkb_num < trig_lkb_amount)
/* only do triggering checks in TRIGGER state and if out lookback buffer
* is full enough */
if (st != osc_state::TRIGGER ||
(trig_mode != osc_trig_mode::INSTANT &&
trig_lkb_num < trig_lkb_amount)) {
return;
}
/* trigger needs to be in NO_TRIG before TRIG state for e.g.
* RISING_EDGE trigger mode */