wip midi

config/forge.cfg

@@ -10,6 +10,7 @@ UNIFORM_IN_FPS_PREFIX=iInputFPS
 UNIFORM_SEED_PREFIX=seed
 UNIFORM_STATE_PREFIX=state
 UNIFORM_TEX_PREFIX=tex
+UNIFORM_SRC_PREFIX=midi
 
 TEX_COUNT=10
 
@@ -31,13 +32,112 @@ FRAG_6_OUT=8
 FRAG_7_OUT=9
 FRAG_8_OUT=0
 
+# TODO not like that
 SUB_TYPE_COUNT=3
 SUB_1_PREFIX=src_
 SUB_2_PREFIX=fx_
 SUB_3_PREFIX=mix_
-SUB_VARIANT_COUNT=16
+SUB_VARIANT_COUNT=15
+
+# MIDI
 
 MIDI_HW=hw:CARD=nanoKONTROL2
 
 SELECT_PAGE_COUNT=3
-SELECT_PAGE1=
+SELECT_PAGE_1=60
+SELECT_PAGE_2=61
+SELECT_PAGE_3=62
+
+SELECT_ITEM_COUNT=5
+SELECT_ITEM_1=43
+SELECT_ITEM_2=44
+SELECT_ITEM_3=42
+SELECT_ITEM_4=41
+SELECT_ITEM_5=45
+
+SELECT_TARGET_COUNT=5
+SELECT_TARGET_1=32
+SELECT_TARGET_2=64
+SELECT_TARGET_3=36
+SELECT_TARGET_4=68
+SELECT_TARGET_5=52
+
+SRC_COUNT=3
+
+SRC_1_ACTIVE_COUNT=2
+SRC_1_ACTIVE_1=32
+SRC_1_ACTIVE_2=64
+SRC_1_COUNT=7
+SRC_1_1_X=33
+SRC_1_1_Y=49
+SRC_1_1_Z=65
+SRC_1_2_X=1
+SRC_1_2_Y=17
+SRC_1_2_Z=
+SRC_1_3_X=34
+SRC_1_3_Y=50
+SRC_1_3_Z=66
+SRC_1_4_X=2
+SRC_1_4_Y=18
+SRC_1_4_Z=
+SRC_1_5_X=35
+SRC_1_5_Y=51
+SRC_1_5_Z=67
+SRC_1_6_X=3
+SRC_1_6_Y=19
+SRC_1_6_Z=
+
+SRC_2_ACTIVE_COUNT=3
+SRC_2_ACTIVE_1=36
+SRC_2_ACTIVE_2=68
+SRC_2_ACTIVE_3=52
+SRC_2_COUNT=7
+SRC_2_1_X=37
+SRC_2_1_Y=53
+SRC_2_1_Z=69
+SRC_2_2_X=5
+SRC_2_2_Y=21
+SRC_2_2_Z=
+SRC_2_3_X=38
+SRC_2_3_Y=54
+SRC_2_3_Z=70
+SRC_2_4_X=6
+SRC_2_4_Y=22
+SRC_2_4_Z=
+SRC_2_5_X=39
+SRC_2_5_Y=55
+SRC_2_5_Z=71
+SRC_2_6_X=7
+SRC_2_6_Y=23
+SRC_2_6_Z=
+SRC_2_7_X=4
+SRC_2_7_Y=20
+SRC_2_7_Z=
+
+SRC_3_COUNT=2
+SRC_3_1_X=48
+SRC_3_1_Y=58
+SRC_3_1_Z=59
+SRC_3_2_X=0
+SRC_3_2_Y=16
+SRC_3_2_Z=
+
+FADER_COUNT=16
+FADER_1=0
+FADER_2=1
+FADER_3=2
+FADER_4=3
+FADER_5=4
+FADER_6=5
+FADER_7=6
+FADER_8=7
+FADER_9=16
+FADER_10=17
+FADER_11=18
+FADER_12=19
+FADER_13=20
+FADER_14=21
+FADER_15=22
+FADER_16=23
+
+TAP_TEMPO=46

src/forge.c

@@ -212,6 +212,11 @@ static void key_callback(Window *window, int key,
   }
 }
 
+static void midi_callback(unsigned char code, float value) {
+  log_debug("midi: %d %.2f", code, value);
+  midi_write(midi, code, value);
+}
+
 static void loop(bool hr) {
   if (hr) {
     hot_reload();
@@ -264,7 +269,7 @@ void forge_run(Parameters params) {
   if (midi.error) {
     params.demo = true;
   } else {
-    if (!midi_background_listen(midi, context)) {
+    if (!midi_background_listen(midi, context, midi_callback)) {
       return;
     }
   }

src/midi.c

@@ -20,7 +20,19 @@ MidiDevice midi_open(char *name) {
   return device;
 }
 
-bool midi_background_listen(MidiDevice device, SharedContext *context) {
+void midi_write(MidiDevice device, unsigned char code, float value) {
+  unsigned char buffer[3];
+
+  buffer[0] = 0xB0;
+  buffer[1] = code;
+  buffer[2] = (unsigned char)(256 * value);
+
+  snd_rawmidi_write(device.output, buffer, 3);
+}
+
+bool midi_background_listen(MidiDevice device, SharedContext *context,
+                            void (*event_callback)(unsigned char code,
+                                                   float value)) {
   pid_t pid;
   int bytes_read;
   unsigned char buffer[3];
@@ -38,7 +50,9 @@ bool midi_background_listen(MidiDevice device, SharedContext *context) {
   while (!context->stop) {
     bytes_read = snd_rawmidi_read(device.input, buffer, 3);
     if (bytes_read == 3) {
-      log_debug("midi: %d %.2f", buffer[1], (float)buffer[2] / 256);
+      event_callback(buffer[1], (float)buffer[2] / 256.0);
+      log_debug("midi: %02x %d %.2f", buffer[0], buffer[1],
+                (float)buffer[2] / 256);
     }
   }
 

src/midi.h

@@ -4,6 +4,9 @@
 #define MIDI_H
 
 MidiDevice midi_open(char *name);
-bool midi_background_listen(MidiDevice device, SharedContext *context);
+void midi_write(MidiDevice device, unsigned char code, float value);
+bool midi_background_listen(MidiDevice device, SharedContext *context,
+                            void (*event_callback)(unsigned char code,
+                                                   float value));
 
 #endif /* MIDI_H */