This commit is contained in:
TonyChyi 2018-03-19 10:40:40 +08:00
parent e7026ea0cd
commit ed2552bbdd

View File

@ -1,50 +0,0 @@
package backend
import (
"github.com/tonychee7000/Arremi/consts"
midi "github.com/youpy/go-coremidi"
)
// MIDIDevice implies a Writer interface.
type MIDIDevice struct {
client midi.Client
source midi.Source
Signal chan midi.Packet
}
// NewMIDIDevice construction func
func NewMIDIDevice() (*MIDIDevice, error) {
var mididev = new(MIDIDevice)
err := mididev.Init()
return mididev, err
}
// Init the client and source
func (midiDev *MIDIDevice) Init() error {
var err error
midiDev.Signal = make(chan midi.Packet, 4096)
midiDev.client, err = midi.NewClient(consts.ClientName)
if err != nil {
return err
}
midiDev.source, err = midi.NewSource(midiDev.client, consts.SourceName)
return err
}
func (midiDev *MIDIDevice) Write(p []byte) (int, error) {
var pack = midi.NewPacket(p, 0)
midiDev.Signal <- pack
err := pack.Received(&(midiDev.source))
return len(p), err
}
// AllNoteOff I don't want panic!
func (midiDev *MIDIDevice) AllNoteOff() {
for i := 0; i < 16; i++ {
for j := 0; j < 128; j++ {
midiDev.Write([]byte{byte(0x90 + i), byte(j), 0})
}
}
}