boomjacky/looper
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch '3-integrate-carla'

Browse Source
This commit is contained in:
Loic Coenen
2026-05-17 19:39:54 +00:00
parent 6c19429fba d28e1f45f5
commit 10e47e6c0c
42 changed files with 2716 additions and 340 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
engine/src/channel.h
View File

@@ -5,11 +5,15 @@
#include <jack/jack.h>
#include <stdatomic.h>
#define MAX_SCENES 4
#define LOOP_BUF_SIZE (5 * 48000)
#define MAX_MIDI_EVENTS 1024
#define MAX_CHANNELS 16
#include "ringbuffer.h"
typedef enum { CHANNEL_AUDIO, CHANNEL_MIDI } channel_type_t;
typedef enum {
STATE_IDLE,
STATE_RECORD,
@@ -17,18 +21,43 @@ typedef enum {
STATE_PAUSED
} looper_state;
/* Structure for a recorded or playing MIDI event */
typedef struct {
jack_nframes_t timestamp;
unsigned char status;
unsigned char note;
unsigned char velocity;
} midi_event_t;
/* Loop data for a scene */
typedef struct {
float audio_buffer[LOOP_BUF_SIZE];
midi_event_t midi_events[MAX_MIDI_EVENTS];
} loop_data_t;
/* A single scene within a channel */
typedef struct {
atomic_int state;
atomic_int prev_state;
atomic_int loop_count;
atomic_int record_pos;
atomic_int playback_pos;
loop_data_t loop;
} scene_t;
struct channel_t {
atomic_int state;
atomic_int prev_state;
float loop_buffer[LOOP_BUF_SIZE];
atomic_int loop_count;
atomic_int record_pos;
atomic_int playback_pos;
channel_type_t type; /* AUDIO or MIDI */
atomic_int active;
jack_port_t *audio_in;
jack_port_t *audio_out;
jack_port_t *midi_in; /* NULL for audio channels */
jack_port_t *midi_out;
int scene_count; /* number of scenes (max MAX_SCENES) */
int current_scene; /* index of currently active scene */
scene_t scenes[MAX_SCENES];
_Atomic RingBuf *save_ring;
atomic_int save_complete; /* 1 when writer is done; RT thread must stop writing */
};
/* Globals declared in looper.c */
@@ -41,7 +70,12 @@ extern atomic_int cmd_remove;
extern atomic_int cmd_load;
extern atomic_int cmd_save;
void init_scene(scene_t *sc);
void channel_add(jack_client_t *client, int idx);
void channel_remove(jack_client_t *client, int idx);
void channel_add_scene(jack_client_t *client, int idx);
void channel_remove_scene(jack_client_t *client, int idx);
void channel_next_scene(jack_client_t *client, int idx);
void channel_prev_scene(jack_client_t *client, int idx);
#endif