====== Rosegarden MIDI Dataflows ======

These were assembled March 2013, so they may be out of date.

===== Playback Dataflow (Old) =====
{{dev:rg-midi-playback-dataflow-old.png }}

Specfic routines involved:

  * Segment (which is part of the document)
  * SegmentMapper::dump()
  * MappedSegment::getBuffer()
  * MappedSegment::m_buffer
  * MappedSegment::iterator::peek()
  * MappedSegmentsMetaIterator::fillCompositionWithEventsUntil()
  * RosegardenSequencer::getSlice()
  * RosegardenSequencer::fetchEvents()
  * RosegardenSequencer::keepPlaying()
  * AlsaDriver::processEventsOut()
  * AlsaDriver::processMIDIOut()

===== Playback Dataflow (New) =====
{{dev:rg-midi-playback-dataflow-new.png }}

Specfic routines involved:

  * Segment
  * InternalSegmentMapper::fillBuffer()
  * MappedEventBuffer::mapAnEvent()
  * MappedEventBuffer::getBuffer()
  * MappedEventBuffer::m_buffer
  * MappedEventBuffer::iterator::peek()
  * MappedBufMetaIterator::fetchEventsNoncompeting()
  * MappedBufMetaIterator::fetchEvents()
  * RosegardenSequencer::getSlice()
  * RosegardenSequencer::fetchEvents()
  * RosegardenSequencer::keepPlaying()
  * AlsaDriver::processEventsOut()
  * AlsaDriver::processMIDIOut()

===== Record Dataflow =====
{{dev:rg-midi-record-dataflow.png }}

Specfic routines involved:

  * AlsaDriver::getMappedEventList()
  * RosegardenSequencer::processRecordedMidi()
  * SequencerDataBlock::addRecordedEvents()
  * SequencerDataBlock::getRecordedEvents()
  * RosegardenMainWindow::processRecordedEvents()
  * RosegardenDocument::insertRecordedMidi()