func main() {
flag.Parse()
portaudio.Initialize()
defer portaudio.Terminate()
portmidi.Initialize()
defer portmidi.Terminate()
if *doDemo {
if err := demo(); err != nil {
log.Println(err)
}
return
}
http.Handle("/", http.FileServer(http.Dir("static")))
http.HandleFunc("/socket", socket.Handler)
l, err := net.Listen("tcp", *listenAddr)
if err != nil {
log.Fatal(err)
}
go http.Serve(l, nil)
u := fmt.Sprintf("http://%v/", *listenAddr)
if !*doBrowser || !openBrowser(u) {
fmt.Printf("Open your web browser to %v\n\n", u)
}
fmt.Println("Press enter to quit...")
os.Stdin.Read([]byte{0})
}
func main() {
flag.Parse()
portaudio.Initialize()
defer portaudio.Terminate()
portmidi.Initialize()
defer portmidi.Terminate()
if *doDemo {
if err := demo(); err != nil {
log.Println(err)
}
return
}
http.Handle("/", http.FileServer(http.Dir("static")))
http.HandleFunc("/socket", socketHandler)
go func() {
if err := http.ListenAndServe(*listenAddr, nil); err != nil {
log.Println(err)
}
}()
os.Stdout.Write([]byte("Press enter to stop...\n"))
os.Stdin.Read([]byte{0})
}
func main() {
flag.Parse()
rand.Seed(time.Now().Unix())
if err := portmidi.Initialize(); err != nil {
log.Fatal(err)
}
defer portmidi.Terminate()
if *deviceN == -1 {
listDevices()
return
}
if err := run(); err != nil {
portmidi.Terminate()
log.Fatal(err)
}
}
func main() {
flag.Usage = func() {
fmt.Fprint(os.Stderr, usage)
flag.PrintDefaults()
os.Exit(2)
}
flag.Parse()
if flag.NArg() != 1 {
flag.Usage()
}
p, err := drum.DecodeFile(flag.Arg(0))
if err != nil {
log.Fatalf("cannot decode splice file: %v", err)
}
if *showInfo {
fmt.Print(p)
return
}
patches, err := readPatches(p, *sampleDir)
if err != nil {
log.Fatalf("cannot read sample patches: %v", err)
}
drumMod, err := drummachine.New(p, patches)
if err != nil {
log.Fatalf("cannot make new drum machine: %v", err)
}
portaudio.Initialize()
defer portaudio.Terminate()
portmidi.Initialize()
defer portmidi.Terminate()
e := audio.NewEngine()
e.Input("in", drumMod)
if err := e.Start(); err != nil {
panic(err)
}
select {}
}
func main() {
var (
ccValue int64
ccNumber int64
deviceId portmidi.DeviceId
err error
)
ccNumber, ccValue, err = parseArgs(os.Args)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
portmidi.Initialize()
defer portmidi.Terminate()
deviceId, err = getDeviceId()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
out, err := portmidi.NewOutputStream(deviceId, 1024, 0)
if err != nil {
fmt.Println("Error opening MicroBrute output port:", err)
os.Exit(1)
}
err = out.WriteShort(ccMessage, ccNumber, ccValue)
if err != nil {
fmt.Println("Error sending message to MicroBrute:", err)
os.Exit(1)
}
}
func main() {
var synthID int32
const synthName = "sineTone"
// Set up SuperCollider client.
client, err := sc.NewClient("udp", "127.0.0.1:57121", "127.0.0.1:57120", 5*time.Second)
if err != nil {
log.Fatal(err)
}
_, err = client.AddDefaultGroup()
if err != nil {
log.Fatal(err)
}
err = client.DumpOSC(int32(1))
if err != nil {
log.Fatal(err)
}
def := sc.NewSynthdef(synthName, func(p sc.Params) sc.Ugen {
freq := p.Add("freq", 440)
gain := p.Add("gain", 0.5)
bus := sc.C(0)
env := sc.EnvGen{
Env: sc.EnvPerc{},
Done: sc.FreeEnclosing,
LevelScale: gain,
}.Rate(sc.KR)
sig := sc.SinOsc{Freq: freq}.Rate(sc.AR).Mul(env)
return sc.Out{bus, sig}.Rate(sc.AR)
})
err = client.SendDef(def)
if err != nil {
log.Fatal(err)
}
// initialize midi
portmidi.Initialize()
// this code can be uncommented to discover the
// device ID's portmidi comes up with
// deviceCount := portmidi.CountDevices()
// enc := json.NewEncoder(os.Stdout)
// for i := 0; i < deviceCount; i++ {
// info := portmidi.GetDeviceInfo(portmidi.DeviceId(i))
// log.Printf("device %d - ", i)
// err = enc.Encode(info)
// if err != nil {
// log.Fatal(err)
// }
// }
// setup midi input stream and listen for midi events
in, err := portmidi.NewInputStream(3, 1024)
if err != nil {
log.Fatal(err)
}
ch := in.Listen()
for event := range ch {
if event.Status == 144 {
// MIDI note
log.Printf("Note %-3d Velocity %-3d\n", event.Data1, event.Data2)
if event.Data2 > 0 {
// Note On
synthID = client.NextSynthID()
ctls := map[string]float32{
"freq": sc.Midicps(float32(event.Data1)),
"gain": float32(event.Data2 / 127.0),
}
_, err = client.Synth(synthName, synthID, sc.AddToTail, sc.DefaultGroupID, ctls)
}
}
}
portmidi.Terminate()
}
func shutDownPortMidi() {
portmidi.Terminate()
}