midipal

// Copyright 2011 Emilie Gillet.
//
// Author: Emilie Gillet (emilie.o.gillet@gmail.com)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
// -----------------------------------------------------------------------------
//
// Arpeggiator app.

#ifndef MIDIPAL_APPS_ARPEGGIATOR_H_
#define MIDIPAL_APPS_ARPEGGIATOR_H_

#include "midipal/app.h"

namespace midipal { namespace apps {

class Arpeggiator {
 public:
  Arpeggiator() { }

  static void OnInit();
  static void OnRawMidiData(
     uint8_t status,
     uint8_t* data,
     uint8_t data_size,
     uint8_t accepted_channel);
  static void OnNoteOn(uint8_t channel, uint8_t note, uint8_t velocity);
  static void OnNoteOff(uint8_t channel, uint8_t note, uint8_t velocity);
  static void OnControlChange(uint8_t, uint8_t, uint8_t);

  static void OnContinue();
  static void OnStart();
  static void OnStop();
  static void OnClock(uint8_t clock_mode);

  static void SetParameter(uint8_t key, uint8_t value);
  
  static const prog_AppInfo app_info_;
  
 protected:
  static void Tick();
  static void Start();
  static void StartArpeggio();
  static void StepArpeggio();
  static void SendNote(uint8_t note, uint8_t velocity);
  
  static uint8_t running_;
   
  static uint8_t clk_mode_;
  static uint8_t bpm_;
  static uint8_t groove_template_;
  static uint8_t groove_amount_;
  static uint8_t channel_;
  static uint8_t direction_;
  static uint8_t num_octaves_;
  static uint8_t pattern_;
  static uint8_t pattern_length_;
  static uint8_t clock_division_;
  static uint8_t duration_;
  static uint8_t latch_;
  
  static uint8_t midi_clock_prescaler_;
  
  static uint8_t tick_;
  static uint8_t idle_ticks_;
  static uint16_t bitmask_;
  static int8_t current_direction_;
  static int8_t current_octave_;
  static int8_t current_step_;
  
  static uint8_t ignore_note_off_messages_;
  static uint8_t recording_;
  
  DISALLOW_COPY_AND_ASSIGN(Arpeggiator);
};

} }  // namespace midipal::apps

#endif // MIDIPAL_APPS_ARPEGGIATOR_H_