diff options
| -rw-r--r-- | backends/midi.c | 61 | ||||
| -rw-r--r-- | backends/midi.md | 3 |
2 files changed, 28 insertions, 36 deletions
diff --git a/backends/midi.c b/backends/midi.c index f378f1e..1f0f2d5 100644 --- a/backends/midi.c +++ b/backends/midi.c @@ -13,9 +13,7 @@ enum /*_midi_channel_type*/ { cc, pressure, aftertouch, - pitchbend, - nrpn, - sysmsg + pitchbend }; static struct { @@ -145,10 +143,6 @@ static channel* midi_channel(instance* inst, char* spec, uint8_t flags){ ident.fields.type = note; channel += 4; } - else if(!strncmp(channel, "nrpn", 4)){ - ident.fields.type = nrpn; - channel += 4; - } else if(!strncmp(channel, "pressure", 8)){ ident.fields.type = pressure; channel += 8; @@ -205,9 +199,6 @@ static int midi_set(instance* inst, size_t num, channel** c, channel_value* v){ case aftertouch: snd_seq_ev_set_chanpress(&ev, ident.fields.channel, v[u].normalised * 127.0); break; - case nrpn: - //FIXME set to nrpn output - break; } snd_seq_event_output(sequencer, &ev); @@ -217,6 +208,24 @@ static int midi_set(instance* inst, size_t num, channel** c, channel_value* v){ return 0; } +static char* midi_type_name(uint8_t type){ + switch(type){ + case none: + return "none"; + case note: + return "note"; + case cc: + return "cc"; + case pressure: + return "pressure"; + case aftertouch: + return "aftertouch"; + case pitchbend: + return "pitch"; + } + return "unknown"; +} + static int midi_handle(size_t num, managed_fd* fds){ snd_seq_event_t* ev = NULL; instance* inst = NULL; @@ -234,59 +243,45 @@ static int midi_handle(size_t num, managed_fd* fds){ while(snd_seq_event_input(sequencer, &ev) > 0){ event_type = NULL; ident.label = 0; + + ident.fields.channel = ev->data.note.channel; + ident.fields.control = ev->data.note.note; + val.normalised = (double) ev->data.note.velocity / 127.0; + switch(ev->type){ case SND_SEQ_EVENT_NOTEON: case SND_SEQ_EVENT_NOTEOFF: case SND_SEQ_EVENT_NOTE: ident.fields.type = note; - ident.fields.channel = ev->data.note.channel; - ident.fields.control = ev->data.note.note; - val.normalised = (double)ev->data.note.velocity / 127.0; if(ev->type == SND_SEQ_EVENT_NOTEOFF){ val.normalised = 0; } - event_type = "note"; break; case SND_SEQ_EVENT_KEYPRESS: ident.fields.type = pressure; - ident.fields.channel = ev->data.note.channel; - ident.fields.control = ev->data.note.note; - val.normalised = (double)ev->data.note.velocity / 127.0; - event_type = "pressure"; break; case SND_SEQ_EVENT_CHANPRESS: ident.fields.type = aftertouch; ident.fields.channel = ev->data.control.channel; - val.normalised = (double)ev->data.control.value / 127.0; - event_type = "aftertouch"; + val.normalised = (double) ev->data.control.value / 127.0; break; case SND_SEQ_EVENT_PITCHBEND: ident.fields.type = pitchbend; ident.fields.channel = ev->data.control.channel; - val.normalised = ((double)ev->data.control.value + 8192) / 16383.0; - event_type = "pitch"; + val.normalised = ((double) ev->data.control.value + 8192) / 16383.0; break; case SND_SEQ_EVENT_CONTROLLER: ident.fields.type = cc; ident.fields.channel = ev->data.control.channel; ident.fields.control = ev->data.control.param; - val.raw.u64 = ev->data.control.value; - val.normalised = (double)ev->data.control.value / 127.0; - event_type = "cc"; - break; - case SND_SEQ_EVENT_CONTROL14: - case SND_SEQ_EVENT_NONREGPARAM: - case SND_SEQ_EVENT_REGPARAM: - //FIXME value calculation - ident.fields.type = nrpn; - ident.fields.channel = ev->data.control.channel; - ident.fields.control = ev->data.control.param; + val.normalised = (double) ev->data.control.value / 127.0; break; default: LOG("Ignored event of unsupported type"); continue; } + event_type = midi_type_name(ident.fields.type); inst = mm_instance_find(BACKEND_NAME, ev->dest.port); if(!inst){ //FIXME might want to return failure diff --git a/backends/midi.md b/backends/midi.md index 8188444..d3d6e33 100644 --- a/backends/midi.md +++ b/backends/midi.md @@ -30,7 +30,6 @@ The MIDI backend supports mapping different MIDI events to MIDIMonster channels. * `pressure` - Note pressure/aftertouch messages * `aftertouch` - Channel-wide aftertouch messages * `pitch` - Channel pitchbend messages -* `nrpn` - NRPNs (not yet implemented) A MIDIMonster channel is specified using the syntax `channel<channel>.<type><index>`. The shorthand `ch` may be used instead of the word `channel` (Note that `channel` here refers to the MIDI channel number). @@ -57,7 +56,5 @@ Currently, no Note Off messages are sent (instead, Note On messages with a veloc generated, which amount to the same thing according to the spec). This may be implemented as a configuration option at a later time. -NRPNs are not yet fully implemented, though rudimentary support is in the codebase. - To see which events your MIDI devices output, ALSA provides the `aseqdump` utility. You can list all incoming events using `aseqdump -p <portname>`. |