diff options
Diffstat (limited to 'midi.c')
| -rw-r--r-- | midi.c | 64 |
1 files changed, 43 insertions, 21 deletions
@@ -4,10 +4,20 @@ #define BACKEND_NAME "midi" static snd_seq_t* sequencer = NULL; +typedef union { + struct { + uint8_t pad[5]; + uint8_t type; + uint8_t channel; + uint8_t control; + } fields; + uint64_t label; +} midi_channel_ident; /* * TODO * Optionally send note-off messages + * Optionally send updates as after-touch */ enum /*_midi_channel_type*/ { @@ -104,15 +114,7 @@ static int midi_configure_instance(instance* instance, char* option, char* value } static channel* midi_channel(instance* instance, char* spec){ - union { - struct { - uint8_t pad[5]; - uint8_t type; - uint8_t channel; - uint8_t control; - } fields; - uint64_t label; - } ident = { + midi_channel_ident ident = { .label = 0 }; @@ -158,15 +160,39 @@ static channel* midi_channel(instance* instance, char* spec){ return NULL; } -static int midi_set(instance* inst, size_t num, channel* c, channel_value* v){ +static int midi_set(instance* inst, size_t num, channel** c, channel_value* v){ size_t u; + snd_seq_event_t ev; midi_instance_data* data; + midi_channel_ident ident = { + .label = 0 + }; for(u = 0; u < num; u++){ - data = (midi_instance_data*) c[u].instance->impl; - //TODO write out event + data = (midi_instance_data*) c[u]->instance->impl; + ident.label = c[u]->ident; + + snd_seq_ev_clear(&ev); + snd_seq_ev_set_source(&ev, data->port); + snd_seq_ev_set_subs(&ev); + snd_seq_ev_set_direct(&ev); + + switch(ident.fields.type){ + case note: + snd_seq_ev_set_noteon(&ev, ident.fields.channel, ident.fields.control, v[u].normalised * 127.0); + break; + case cc: + snd_seq_ev_set_controller(&ev, ident.fields.channel, ident.fields.control, v[u].normalised * 127.0); + break; + case nrpn: + //FIXME set to nrpn output + break; + } + + snd_seq_event_output(sequencer, &ev); } + snd_seq_drain_output(sequencer); return 0; } @@ -175,18 +201,14 @@ static int midi_handle(size_t num, managed_fd* fds){ instance* inst = NULL; channel* changed = NULL; channel_value val; - union { - struct { - uint8_t pad[5]; - uint8_t type; - uint8_t channel; - uint8_t control; - } fields; - uint64_t label; - } ident = { + midi_channel_ident ident = { .label = 0 }; + if(!num){ + return 0; + } + while(snd_seq_event_input(sequencer, &ev) > 0){ ident.label = 0; switch(ev->type){ |