wip midi

src/midi.c

@@ -0,0 +1,36 @@
+#include <GLFW/glfw3.h>
+#include <alsa/asoundlib.h>
+
+#include "log.h"
+#include "types.h"
+
+void midi_close(MidiDevice device) {
+  if (device.input != NULL) {
+    snd_rawmidi_close(device.input);
+  }
+  if (device.output != NULL) {
+    snd_rawmidi_close(device.input);
+  }
+}
+
+MidiDevice midi_open(char *name) {
+  MidiDevice device;
+
+  device.input = NULL;
+  device.output = NULL;
+
+  snd_rawmidi_open(&device.input, &device.output, name, 0);
+
+  device.error = device.input == NULL || device.output == NULL;
+
+  if (device.error) {
+    midi_close(device);
+  }
+
+  log_debug("(%s) MIDI open", name);
+
+  return device;
+}
+
+// int bytes_read = snd_rawmidi_read(input, input_buffer, sizeof(input_buffer));
+// snd_rawmidi_write(output, buffer, 3);

src/midi.h

@@ -0,0 +1,9 @@
+#include "types.h"
+
+#ifndef MIDI_H
+#define MIDI_H
+
+MidiDevice midi_open(char *name);
+void midi_close(MidiDevice device);
+
+#endif /* MIDI_H */

src/types.h

@@ -1,4 +1,5 @@
 #include <GLFW/glfw3.h>
+#include <alsa/asoundlib.h>
 #include <glad/egl.h>
 #include <glad/gl.h>
 #include <hashmap.h>
@@ -148,4 +149,10 @@ typedef struct ConfigFileItem {
   char value[2048];
 } ConfigFileItem;
 
+typedef struct MidiDevice {
+  bool error;
+  snd_rawmidi_t *input;
+  snd_rawmidi_t *output;
+} MidiDevice;
+
 #endif /* TYPES_H */