125 lines
4.1 KiB
C
125 lines
4.1 KiB
C
// cppcheck-suppress missingIncludeSystem
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#include "midi.h"
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#include "channel.h"
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#include "command.h"
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#include "queue.h"
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#include <jack/jack.h>
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#include <jack/midiport.h>
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#include <stdatomic.h>
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extern atomic_int control_key_active;
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extern atomic_int bind_channel;
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extern spsc_queue_t cmd_queue;
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extern spsc_queue_t cmd_queue_main_midi;
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void midi_handle_events(void *port_buffer, jack_nframes_t nframes) {
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(void)nframes;
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jack_nframes_t nevents = jack_midi_get_event_count(port_buffer);
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jack_midi_event_t ev;
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for (jack_nframes_t i = 0; i < nevents; i++) {
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if (jack_midi_event_get(&ev, port_buffer, i) != 0)
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continue;
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if (ev.size < 3)
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continue;
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unsigned char status = ev.buffer[0];
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unsigned char note = ev.buffer[1];
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unsigned char vel = ev.buffer[2];
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/* note‑on */
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if ((status & 0xf0) == 0x90 && vel > 0) {
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if (note == 64) {
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atomic_store(&control_key_active, 1);
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} else {
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int ck = atomic_load(&control_key_active);
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if (ck) {
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atomic_store(&control_key_active, 0);
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if (note < 16 && note < atomic_load(&channel_capacity)) {
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command_t cmd = {
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.type = CMD_BIND_CHANNEL, .channel = -1, .data = note};
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queue_push(&cmd_queue, cmd);
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} else {
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switch (note) {
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case 60: {
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command_t cmd = {
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.type = CMD_ADD_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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case 61: {
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command_t cmd = {
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.type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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case 62: {
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int bch = atomic_load(&bind_channel);
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if (bch >= 0 && bch < atomic_load(&channel_capacity)) {
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command_t cmd = {.type = CMD_CYCLE, .channel = bch, .data = 0};
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queue_push(&cmd_queue, cmd);
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}
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} break;
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case 63: {
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command_t cmd = {.type = CMD_UNBIND, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} break;
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case 65: {
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command_t cmd = {.type = CMD_STOP, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} break;
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case 66: {
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command_t cmd = {
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.type = CMD_ADD_MIDI_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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case 67: {
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command_t cmd = {
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.type = CMD_NEXT_SCENE, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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case 68: {
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command_t cmd = {
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.type = CMD_PREV_SCENE, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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case 69: {
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command_t cmd = {
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.type = CMD_ADD_SCENE, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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case 70: {
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command_t cmd = {
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.type = CMD_REMOVE_SCENE, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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default:
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break;
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}
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}
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} else {
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/* direct mapping */
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switch (note) {
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case 1: {
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command_t cmd = {.type = CMD_CYCLE, .channel = 0, .data = 0};
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queue_push(&cmd_queue, cmd);
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} break;
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case 60: {
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command_t cmd = {.type = CMD_ADD_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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case 61: {
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command_t cmd = {
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.type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_midi, cmd);
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} break;
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default:
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break;
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}
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}
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}
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} else if ((status & 0xf0) == 0x80 ||
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((status & 0xf0) == 0x90 && vel == 0)) {
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atomic_store(&control_key_active, 0);
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}
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}
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}
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