Beispiel #1
0
func main() {
	flag.Parse()

	sequencer := NewSequencer()

	for _, file := range flag.Args() {
		pattern, err := drum.DecodeFile(file)
		if err != nil {
			log.Fatal(err)
		}
		if err := sequencer.Add(pattern); err != nil {
			log.Fatal(err)
		}
		log.Print(pattern.String())
	}

	portaudio.Initialize()
	defer portaudio.Terminate()
	stream, err := portaudio.OpenDefaultStream(0, 2, 44100, 0, func(o []int32) {
		sequencer.Read(o)
	})
	if err != nil {
		log.Fatal(err)
	}
	defer stream.Close()
	stream.Start()
	defer stream.Stop()

	sequencer.Start()

	for {
		time.Sleep(time.Second)
	}
}
Beispiel #2
0
func main() {
	if len(os.Args) != 2 {
		fmt.Println("usage: tdrum file.splice")
		os.Exit(1)
	}

	pattern, err := drum.DecodeFile(os.Args[1])
	if err != nil {
		fmt.Printf("error: %s\n", err)
		os.Exit(1)
	}

	sequencer = NewSequencer()
	if err := sequencer.Add(pattern); err != nil {
		fmt.Printf("error: %s\n", err)
		os.Exit(1)
	}

	portaudio.Initialize()
	defer portaudio.Terminate()
	stream, err := portaudio.OpenDefaultStream(0, 2, 44100, 0, func(o []int32) {
		sequencer.Read(o)
	})
	if err != nil {
		log.Fatal(err)
	}
	defer stream.Close()
	stream.Start()
	defer stream.Stop()

	if err := termbox.Init(); err != nil {
		panic(err)
	}
	defer termbox.Close()
	termbox.SetOutputMode(termbox.Output256)

	eq := make(chan termbox.Event)
	go func() {
		for {
			eq <- termbox.PollEvent()
		}
	}()

	draw(pattern)
loop:
	for {
		select {
		case ev := <-eq:
			if ev.Type == termbox.EventKey && ev.Key == termbox.KeyEsc {
				break loop
			}
			if ev.Type == termbox.EventKey && ev.Key == termbox.KeySpace {
				if sequencer.Running {
					sequencer.Reset()
				} else {
					sequencer.Start()
				}
			}
		default:
			draw(pattern)
			time.Sleep(time.Millisecond * 2)
		}
	}
}