Class: Musicality::SuperCollider::Conductor

Inherits:
Object
  • Object
show all
Defined in:
lib/musicality/performance/supercollider/conductor.rb

Instance Method Summary collapse

Constructor Details

#initialize(score) ⇒ Conductor

Returns a new instance of Conductor.



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# File 'lib/musicality/performance/supercollider/conductor.rb', line 5

def initialize score
  unless score.is_a?(Score::Timed)
    raise ArgumentError, "The given score is not a Score::Timed. \
    Convert it first using ScoreConverter."
  end

  parts = score.collated? ? score.parts : ScoreCollator.new(score).collate_parts
  @performers = Hash[ parts.map do |name, part|
    [name, Performer.new(part)]
  end]
end

Instance Method Details

#bundles(selected_parts = @performers.keys, lead_time) ⇒ Object 



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# File 'lib/musicality/performance/supercollider/conductor.rb', line 24

def bundles selected_parts = @performers.keys, lead_time
  Node.reset_id_counter

  default_group = Group.default(nil)
  aux_audio_bus = 16
  volume_control_bus = 0
  bundle_kwargs = {
    :parent_group => default_group,
    :aux_audio_bus => aux_audio_bus,
    :volume_control_bus => volume_control_bus,
    :lead_time => lead_time
  }

  all_bundles = [ default_group.bundle_queue(0.0) ]
  selected_parts.each do |name|
    bundles = @performers[name].bundles(**bundle_kwargs)
    bundle_kwargs[:aux_audio_bus] += 2
    bundle_kwargs[:volume_control_bus] += 1
    all_bundles.concat bundles
  end
  all_bundles = all_bundles.sort_by {|b| b.time }
  default_group.free_all
  all_bundles.push(default_group.bundle_queue(lead_time+all_bundles.last.time))

  coalesced_bundles = []
  all_bundles.each do |bundle|
    if coalesced_bundles.any? && coalesced_bundles.last.time == bundle.time
      coalesced_bundles.last.messages.concat bundle.messages
    else
      coalesced_bundles.push bundle
    end
  end

  return coalesced_bundles
end

#perform(base_fpath, selected_parts: @performers.keys, verbose: false, lead_time: 0.1, keep_code: false) ⇒ Object 



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# File 'lib/musicality/performance/supercollider/conductor.rb', line 17

def perform base_fpath, selected_parts: @performers.keys, verbose: false, lead_time: 0.1, keep_code: false
  bundles = bundles(selected_parts, lead_time)
  fpath = write_sc_code bundles, base_fpath
  exec_sc_code fpath, bundles.last.time, verbose
  File.delete(fpath) unless keep_code
end