12-command-art

src/looper.c

@@ -1,7 +1,9 @@
 // cppcheck-suppress missingIncludeSystem
 #include "looper.h"
 #include "channel.h"
+#include "command.h"
 #include "midi.h"
+#include "queue.h"
 #include <jack/jack.h>
 #include <jack/midiport.h>
 #include <math.h>
@@ -9,8 +11,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "command.h"
-#include "queue.h"
 
 /* Global state (shared across files) */
 struct channel_t channels[MAX_CHANNELS];
@@ -36,11 +36,21 @@ static void apply_command(command_t cmd) {
       int cur = atomic_load(&channels[cmd.channel].state);
       int next;
       switch (cur) {
-            case STATE_IDLE:    next = STATE_RECORD;  break;
-            case STATE_RECORD:  next = STATE_LOOPING; break;
-            case STATE_LOOPING: next = STATE_PAUSED;  break;
-            case STATE_PAUSED:  next = STATE_LOOPING; break;
-            default:            next = STATE_IDLE;    break;
+      case STATE_IDLE:
+        next = STATE_RECORD;
+        break;
+      case STATE_RECORD:
+        next = STATE_LOOPING;
+        break;
+      case STATE_LOOPING:
+        next = STATE_PAUSED;
+        break;
+      case STATE_PAUSED:
+        next = STATE_LOOPING;
+        break;
+      default:
+        next = STATE_IDLE;
+        break;
       }
       atomic_store(&channels[cmd.channel].state, next);
     }

src/midi.c

@@ -36,36 +36,34 @@ void midi_handle_events(void *port_buffer, jack_nframes_t nframes) {
         if (ck) {
           atomic_store(&control_key_active, 0);
           if (note < 16) {
-            command_t cmd = { .type = CMD_BIND_CHANNEL, .channel = -1, .data = note };
+            command_t cmd = {
+                .type = CMD_BIND_CHANNEL, .channel = -1, .data = note};
             queue_push(&cmd_queue, cmd);
           } else {
             switch (note) {
-            case 60:
-            {
-              command_t cmd = { .type = CMD_ADD_CHANNEL, .channel = -1, .data = 0 };
+            case 60: {
+              command_t cmd = {
+                  .type = CMD_ADD_CHANNEL, .channel = -1, .data = 0};
               queue_push(&cmd_queue_main_midi, cmd);
             } break;
-            case 61:
-            {
-              command_t cmd = { .type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0 };
+            case 61: {
+              command_t cmd = {
+                  .type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0};
               queue_push(&cmd_queue_main_midi, cmd);
             } break;
-            case 62:
-            {
+            case 62: {
               int bch = atomic_load(&bind_channel);
               if (bch >= 0 && bch < MAX_CHANNELS) {
-                command_t cmd = { .type = CMD_CYCLE, .channel = bch, .data = 0 };
+                command_t cmd = {.type = CMD_CYCLE, .channel = bch, .data = 0};
                 queue_push(&cmd_queue, cmd);
               }
             } break;
-            case 63:
-            {
-              command_t cmd = { .type = CMD_UNBIND, .channel = -1, .data = 0 };
+            case 63: {
+              command_t cmd = {.type = CMD_UNBIND, .channel = -1, .data = 0};
               queue_push(&cmd_queue, cmd);
             } break;
-            case 65:
-            {
-              command_t cmd = { .type = CMD_STOP, .channel = -1, .data = 0 };
+            case 65: {
+              command_t cmd = {.type = CMD_STOP, .channel = -1, .data = 0};
               queue_push(&cmd_queue, cmd);
             } break;
             default:
@@ -75,19 +73,17 @@ void midi_handle_events(void *port_buffer, jack_nframes_t nframes) {
         } else {
           /* direct mapping */
           switch (note) {
-          case 1:
-            {
-              command_t cmd = { .type = CMD_CYCLE, .channel = 0, .data = 0 };
+          case 1: {
+            command_t cmd = {.type = CMD_CYCLE, .channel = 0, .data = 0};
             queue_push(&cmd_queue, cmd);
           } break;
-          case 60:
-          {
-            command_t cmd = { .type = CMD_ADD_CHANNEL, .channel = -1, .data = 0 };
+          case 60: {
+            command_t cmd = {.type = CMD_ADD_CHANNEL, .channel = -1, .data = 0};
             queue_push(&cmd_queue_main_midi, cmd);
           } break;
-          case 61:
-          {
-            command_t cmd = { .type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0 };
+          case 61: {
+            command_t cmd = {
+                .type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0};
             queue_push(&cmd_queue_main_midi, cmd);
           } break;
           default:

src/pipe.c

@@ -1,14 +1,14 @@
 #include "pipe.h"
-#include "queue.h"
 #include "command.h"
+#include "queue.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
-#include <pthread.h>
 #include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
+#include <unistd.h>
 
 #define FIFO_PATH "/tmp/looper_cmd"
 #define LINE_MAX 256
@@ -28,28 +28,28 @@ static void *pipe_thread_func(void *arg) {
   while (fgets(line, sizeof(line), fifo)) {
     /* strip newline */
     size_t len = strlen(line);
-        if (len > 0 && line[len-1] == '\n')
-            line[len-1] = '\0';
+    if (len > 0 && line[len - 1] == '\n')
+      line[len - 1] = '\0';
 
     if (strcmp(line, "add") == 0) {
-            command_t cmd = { .type = CMD_ADD_CHANNEL, .channel = -1, .data = 0 };
+      command_t cmd = {.type = CMD_ADD_CHANNEL, .channel = -1, .data = 0};
       queue_push(&cmd_queue_main_fifo, cmd);
     } else if (strcmp(line, "remove") == 0) {
-            command_t cmd = { .type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0 };
+      command_t cmd = {.type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0};
       queue_push(&cmd_queue_main_fifo, cmd);
     } else if (strncmp(line, "record ", 7) == 0) {
       int ch = atoi(line + 7);
-            command_t cmd = { .type = CMD_CYCLE, .channel = ch, .data = 0 };
+      command_t cmd = {.type = CMD_CYCLE, .channel = ch, .data = 0};
       queue_push(&cmd_queue, cmd);
     } else if (strcmp(line, "stop") == 0) {
-            command_t cmd = { .type = CMD_STOP, .channel = -1, .data = 0 };
+      command_t cmd = {.type = CMD_STOP, .channel = -1, .data = 0};
       queue_push(&cmd_queue, cmd);
     } else if (strncmp(line, "bind ", 5) == 0) {
       int ch = atoi(line + 5);
-            command_t cmd = { .type = CMD_BIND_CHANNEL, .channel = -1, .data = ch };
+      command_t cmd = {.type = CMD_BIND_CHANNEL, .channel = -1, .data = ch};
       queue_push(&cmd_queue, cmd);
     } else if (strcmp(line, "unbind") == 0) {
-            command_t cmd = { .type = CMD_UNBIND, .channel = -1, .data = 0 };
+      command_t cmd = {.type = CMD_UNBIND, .channel = -1, .data = 0};
       queue_push(&cmd_queue, cmd);
     }
     /* ignore unknown lines */

src/queue.c

@@ -25,6 +25,7 @@ bool queue_pop(spsc_queue_t *q, command_t *cmd) {
   if (t == h)
     return false; /* queue empty */
   *cmd = q->buffer[t];
-    atomic_store_explicit(&q->tail, (t + 1) % QUEUE_CAPACITY, memory_order_release);
+  atomic_store_explicit(&q->tail, (t + 1) % QUEUE_CAPACITY,
+                        memory_order_release);
   return true;
 }