-Midi_dynamic::Midi_dynamic (Audio_dynamic *a)
- : Midi_channel_item (a),
- audio_ (a)
-{
-}
-
-string
-Midi_dynamic::to_string () const
-{
- Byte status_byte = (char) (0xB0 + channel_);
- string str = ::to_string ((char)status_byte);
-
- /*
- Main volume controller (per channel):
- 07 MSB
- 27 LSB
- */
- static Real const full_scale = 127;
-
- int volume = (int) (audio_->volume_ * full_scale);
- if (volume <= 0)
- volume = 1;
- if (volume > full_scale)
- volume = (int)full_scale;
-
- int const volume_default = 100;
- if (audio_->volume_ < 0 || audio_->silent_)
- volume = volume_default;
-
- str += ::to_string ((char)0x07);
- str += ::to_string ((char)volume);
- return str;
-}
-