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style: reformat code and reorder includes in looper.c and main.c

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This commit is contained in:
Loic Coenen
2026-05-09 12:11:55 +00:00
committed by Loic Coenen (aider)
parent e8d679c1af
commit 1db9735e1b
2 changed files with 230 additions and 228 deletions
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81
src/looper.c
View File

@@ -1,13 +1,13 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <jack/jack.h>
#include <jack/midiport.h>
#include <stdatomic.h>
#include <math.h>
#include "looper.h"
#include "channel.h"
#include "midi.h"
#include <jack/jack.h>
#include <jack/midiport.h>
#include <math.h>
#include <stdatomic.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* Global state (shared across files) */
struct channel_t channels[MAX_CHANNELS];
@@ -26,8 +26,7 @@ static int pending_unregister_idx = -1;
/* ----------------------------------------------------------------
* process callback
* ---------------------------------------------------------------- */
int process_callback(jack_nframes_t nframes, void *arg)
{
int process_callback(jack_nframes_t nframes, void *arg) {
(void)arg;
if (midi_control_port) {
@@ -39,7 +38,8 @@ int process_callback(jack_nframes_t nframes, void *arg)
/* process each active channel */
for (int c = 0; c < MAX_CHANNELS; c++) {
if (!atomic_load(&channels[c].active)) continue;
if (!atomic_load(&channels[c].active))
continue;
/* Guard against NULL ports (e.g. if port registration failed) */
if (!channels[c].audio_in || !channels[c].audio_out) {
@@ -47,11 +47,14 @@ int process_callback(jack_nframes_t nframes, void *arg)
continue;
}
jack_default_audio_sample_t *in = (jack_default_audio_sample_t *)
jack_port_get_buffer(channels[c].audio_in, nframes);
jack_default_audio_sample_t *out = (jack_default_audio_sample_t *)
jack_port_get_buffer(channels[c].audio_out, nframes);
if (!out) continue;
jack_default_audio_sample_t *in =
(jack_default_audio_sample_t *)jack_port_get_buffer(
channels[c].audio_in, nframes);
jack_default_audio_sample_t *out =
(jack_default_audio_sample_t *)jack_port_get_buffer(
channels[c].audio_out, nframes);
if (!out)
continue;
int state = atomic_load(&channels[c].state);
@@ -77,7 +80,8 @@ int process_callback(jack_nframes_t nframes, void *arg)
if (in) {
for (i = 0; i < nframes; i++) {
if (channels[c].record_pos < LOOP_BUF_SIZE)
channels[c].loop_buffer[channels[c].record_pos++] = ((const float *)in)[i];
channels[c].loop_buffer[channels[c].record_pos++] =
((const float *)in)[i];
((float *)out)[i] = ((const float *)in)[i];
}
} else {
@@ -90,7 +94,8 @@ int process_callback(jack_nframes_t nframes, void *arg)
float *outf = (float *)out;
for (i = 0; i < nframes; i++) {
outf[i] = channels[c].loop_buffer[channels[c].playback_pos];
channels[c].playback_pos = (channels[c].playback_pos + 1) % channels[c].loop_count;
channels[c].playback_pos =
(channels[c].playback_pos + 1) % channels[c].loop_count;
}
} else {
memset(out, 0, sizeof(jack_default_audio_sample_t) * nframes);
@@ -120,13 +125,15 @@ int process_callback(jack_nframes_t nframes, void *arg)
jack_nframes_t n_clock_events = jack_midi_get_event_count(midi_clock_buf);
jack_midi_event_t cev;
for (jack_nframes_t j = 0; j < n_clock_events; j++) {
if (jack_midi_event_get(&cev, midi_clock_buf, j) != 0) continue;
if (jack_midi_event_get(&cev, midi_clock_buf, j) != 0)
continue;
if (cev.size >= 1) {
unsigned char msg = cev.buffer[0];
switch (msg) {
case 0xFA: {
int s = atomic_load(&channels[0].state);
if (s == STATE_IDLE) atomic_store(&channels[0].state, STATE_RECORD);
if (s == STATE_IDLE)
atomic_store(&channels[0].state, STATE_RECORD);
break;
}
case 0xFC:
@@ -134,7 +141,8 @@ int process_callback(jack_nframes_t nframes, void *arg)
break;
case 0xFB: {
int s = atomic_load(&channels[0].state);
if (s == STATE_PAUSED) atomic_store(&channels[0].state, STATE_LOOPING);
if (s == STATE_PAUSED)
atomic_store(&channels[0].state, STATE_LOOPING);
break;
}
default:
@@ -151,8 +159,7 @@ int process_callback(jack_nframes_t nframes, void *arg)
/* ----------------------------------------------------------------
* shutdown callback
* ---------------------------------------------------------------- */
void jack_shutdown_cb(void *arg)
{
void jack_shutdown_cb(void *arg) {
(void)arg;
fprintf(stderr, "JACK shutdown\n");
exit(0);
@@ -161,8 +168,7 @@ void jack_shutdown_cb(void *arg)
/* ----------------------------------------------------------------
* looper initialisation
* ---------------------------------------------------------------- */
int looper_init(jack_client_t *client)
{
int looper_init(jack_client_t *client) {
/* channel 0 */
channels[0].active = 1;
atomic_store(&channels[0].state, STATE_IDLE);
@@ -171,23 +177,19 @@ int looper_init(jack_client_t *client)
channels[0].record_pos = 0;
channels[0].playback_pos = 0;
channels[0].audio_in = jack_port_register(client, "input",
JACK_DEFAULT_AUDIO_TYPE,
JackPortIsInput, 0);
channels[0].audio_out = jack_port_register(client, "output",
JACK_DEFAULT_AUDIO_TYPE,
JackPortIsOutput, 0);
channels[0].audio_in = jack_port_register(
client, "input", JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
channels[0].audio_out = jack_port_register(
client, "output", JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
if (!channels[0].audio_in || !channels[0].audio_out) {
fprintf(stderr, "Could not create audio ports for channel 0\n");
return -1;
}
channel_count = 1;
midi_control_port = jack_port_register(client, "control",
JACK_DEFAULT_MIDI_TYPE,
JackPortIsInput, 0);
midi_clock_port = jack_port_register(client, "clock",
JACK_DEFAULT_MIDI_TYPE,
midi_control_port = jack_port_register(
client, "control", JACK_DEFAULT_MIDI_TYPE, JackPortIsInput, 0);
midi_clock_port = jack_port_register(client, "clock", JACK_DEFAULT_MIDI_TYPE,
JackPortIsInput, 0);
if (!midi_control_port || !midi_clock_port) {
fprintf(stderr, "Could not create MIDI ports\n");
@@ -200,8 +202,7 @@ int looper_init(jack_client_t *client)
/* ----------------------------------------------------------------
* main‑loop command processing
* ---------------------------------------------------------------- */
void looper_process_commands(jack_client_t *client)
{
void looper_process_commands(jack_client_t *client) {
/* Unregister any ports that were marked for deferred removal.
By now the real‑time thread has had at least one full cycle
to see the `active = 0` store. */
@@ -217,7 +218,8 @@ void looper_process_commands(jack_client_t *client)
if (atomic_exchange(&cmd_add, 0)) {
int idx;
for (idx = 0; idx < MAX_CHANNELS; idx++)
if (!channels[idx].active) break;
if (!channels[idx].active)
break;
if (idx < MAX_CHANNELS) {
channel_add(client, idx);
}
@@ -226,7 +228,8 @@ void looper_process_commands(jack_client_t *client)
if (atomic_exchange(&cmd_remove, 0)) {
int remove_idx = -1;
for (int idx = 1; idx < MAX_CHANNELS; idx++)
if (channels[idx].active) remove_idx = idx;
if (channels[idx].active)
remove_idx = idx;
if (remove_idx != -1) {
/* Mark inactive now; ports will be unregistered next round */
channel_remove(client, remove_idx);

7
src/main.c
View File

@@ -1,11 +1,10 @@
#include "looper.h"
#include <jack/jack.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <jack/jack.h>
#include "looper.h"
int main(int argc, char *argv[])
{
int main(int argc, char *argv[]) {
(void)argc;
(void)argv;
const char *client_name = "looper";