/[svn]/linuxsampler/trunk/src/midiin.cpp
ViewVC logotype

Diff of /linuxsampler/trunk/src/midiin.cpp

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 19 by schoenebeck, Sun Dec 7 05:03:43 2003 UTC revision 20 by schoenebeck, Thu Dec 25 00:02:45 2003 UTC
# Line 32  MidiIn::~MidiIn() { Line 32  MidiIn::~MidiIn() {
32  }  }
33    
34  int MidiIn::open_alsa_midi_seq(void) {  int MidiIn::open_alsa_midi_seq(void) {
     int portid;  
35      if (snd_seq_open(&seq_handle, "default", SND_SEQ_OPEN_INPUT, 0) < 0) {      if (snd_seq_open(&seq_handle, "default", SND_SEQ_OPEN_INPUT, 0) < 0) {
36          fprintf(stderr, "Error opening ALSA sequencer.\n");          fprintf(stderr, "Error opening ALSA sequencer.\n");
37          exit(1);          exit(1);
38      }      }
39        this->AlsaID = snd_seq_client_id(seq_handle);
40      snd_seq_set_client_name(seq_handle, "LinuxSampler");      snd_seq_set_client_name(seq_handle, "LinuxSampler");
41      if ((portid = snd_seq_create_simple_port(seq_handle, "LinuxSampler",      if ((this->AlsaPort = snd_seq_create_simple_port(seq_handle, "LinuxSampler",
42                                               SND_SEQ_PORT_CAP_WRITE|SND_SEQ_PORT_CAP_SUBS_WRITE,                                                       SND_SEQ_PORT_CAP_WRITE|SND_SEQ_PORT_CAP_SUBS_WRITE,
43                                               SND_SEQ_PORT_TYPE_APPLICATION)) < 0) {                                                       SND_SEQ_PORT_TYPE_APPLICATION)) < 0) {
44          fprintf(stderr, "Error creating sequencer port.\n");          fprintf(stderr, "Error creating sequencer port.\n");
45          exit(1);          exit(1);
46      }      }
# Line 50  int MidiIn::open_alsa_midi_seq(void) { Line 50  int MidiIn::open_alsa_midi_seq(void) {
50  void MidiIn::close_alsa_midi_seq(void) {  void MidiIn::close_alsa_midi_seq(void) {
51  }  }
52    
53    /**
54     * Makes a connection to another Alsa sequencer client, so that all MIDI
55     * events from e.g. a keyboard are always delivered to us.
56     *
57     * @param Client - Alsa sequencer client ID and port string to connect to
58     *                (e.g. "64:0")
59     */
60    void MidiIn::SubscribeToClient(const char* Client) {
61        snd_seq_addr_t sender, dest;
62        snd_seq_port_subscribe_t* subs;
63        sscanf(Client, "%d:%d", sender.client, sender.port);
64        dest.client = this->AlsaID;
65        dest.port   = this->AlsaPort;
66        snd_seq_port_subscribe_alloca(&subs);
67        snd_seq_port_subscribe_set_sender(subs, &sender);
68        snd_seq_port_subscribe_set_dest(subs, &dest);
69        snd_seq_port_subscribe_set_queue(subs, 1);
70        snd_seq_port_subscribe_set_time_update(subs, 1);
71        snd_seq_port_subscribe_set_time_real(subs, 1);
72        int res = snd_seq_subscribe_port(this->seq_handle, subs);
73        if (!res) {
74            fprintf(stderr, "Unable to subscribe to client \'%s\'\n", Client);
75        }
76    }
77    
78  int MidiIn::Main() {  int MidiIn::Main() {
79      int res = open_alsa_midi_seq();      int res = open_alsa_midi_seq();
80      if (res < 0) {      if (res < 0) {
Legend:
Removed from v.19  
changed lines
  Added in v.20
  ViewVC Help
Powered by ViewVC