1 // Licensed GNU LGPL v3 or later: http://www.gnu.org/licenses/lgpl.html
2
3 #include "smmain.hh"
4 #include "sminstrument.hh"
5 #include "sminsteditwindow.hh"
6 #include "smeventloop.hh"
7 #include "smproject.hh"
8 #include "smmidisynth.hh"
9 #include "smsynthinterface.hh"
10
11 #include <jack/jack.h>
12 #include <jack/midiport.h>
13
14 #include <stdio.h>
15
16 using namespace SpectMorph;
17
18 class JackSynth : public SignalReceiver
19 {
20 jack_port_t *input_port;
21 jack_port_t *output_port;
22
23 Project project;
24 public:
25 static int
jack_process(jack_nframes_t nframes,void * arg)26 jack_process (jack_nframes_t nframes, void *arg)
27 {
28 JackSynth *instance = reinterpret_cast<JackSynth *> (arg);
29 return instance->process (nframes);
30 }
31
32 int
process(jack_nframes_t nframes)33 process (jack_nframes_t nframes)
34 {
35 project.try_update_synth();
36
37 float *audio_out = (jack_default_audio_sample_t *) jack_port_get_buffer (output_port, nframes);
38 void *port_buf = jack_port_get_buffer (input_port, nframes);
39 MidiSynth *midi_synth = project.midi_synth();
40
41 jack_nframes_t event_count = jack_midi_get_event_count (port_buf);
42 for (jack_nframes_t event_index = 0; event_index < event_count; event_index++)
43 {
44 jack_midi_event_t in_event;
45 jack_midi_event_get (&in_event, port_buf, event_index);
46
47 midi_synth->add_midi_event (in_event.time, in_event.buffer);
48 }
49 midi_synth->process (audio_out, nframes);
50 return 0;
51 }
52
JackSynth(jack_client_t * client)53 JackSynth (jack_client_t *client)
54 {
55 project.set_mix_freq (jack_get_sample_rate (client));
56 project.midi_synth()->set_inst_edit (true);
57
58 jack_set_process_callback (client, jack_process, this);
59
60 input_port = jack_port_register (client, "midi_in", JACK_DEFAULT_MIDI_TYPE, JackPortIsInput, 0);
61 output_port = jack_port_register (client, "audio_out", JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
62
63 if (jack_activate (client))
64 {
65 fprintf (stderr, "cannot activate client");
66 exit (1);
67 }
68 }
69
70 Project *
get_project()71 get_project()
72 {
73 return &project;
74 }
75 };
76
77 int
main(int argc,char ** argv)78 main (int argc, char **argv)
79 {
80 Main main (&argc, &argv);
81
82 jack_client_t *client = jack_client_open ("sminstedit", JackNullOption, NULL);
83 if (!client)
84 {
85 fprintf (stderr, "%s: unable to connect to jack server\n", argv[0]);
86 exit (1);
87 }
88
89 JackSynth jack_synth (client);
90
91 bool quit = false;
92
93 Instrument instrument;
94 if (argc > 1)
95 {
96 Error error = instrument.load (argv[1]);
97 if (error)
98 {
99 fprintf (stderr, "%s: %s: %s.\n", argv[0], argv[1], error.message());
100 return 1;
101 }
102 }
103
104 EventLoop event_loop;
105 InstEditWindow window (event_loop, &instrument, jack_synth.get_project()->synth_interface());
106
107 window.show();
108 window.set_close_callback ([&]() { quit = true; });
109
110 while (!quit)
111 {
112 event_loop.wait_event_fps();
113 event_loop.process_events();
114 }
115 jack_client_close (client);
116 }
117