added initial support for qemu led state

encodings/enc-led-state.go

@@ -0,0 +1,31 @@
+package encodings
+
+import (
+	"io"
+	"vncproxy/common"
+	"vncproxy/logger"
+)
+
+type EncLedStatePseudo struct {
+	LedState uint8
+}
+
+func (pe *EncLedStatePseudo) Type() int32 {
+	return int32(common.EncLedStatePseudo)
+}
+func (pe *EncLedStatePseudo) WriteTo(w io.Writer) (n int, err error) {
+	w.Write([]byte{pe.LedState})
+	return 1, nil
+}
+func (pe *EncLedStatePseudo) Read(pf *common.PixelFormat, rect *common.Rectangle, r *common.RfbReadHelper) (common.IEncoding, error) {
+	if rect.Width*rect.Height == 0 {
+		return pe, nil
+	}
+	u8, err := r.ReadUint8()
+	pe.LedState = u8
+	if err != nil {
+		logger.Error("error while reading led state: ", err)
+		return pe, err
+	}
+	return pe, nil
+}