andrewm@0: /*
andrewm@0:   TouchKeys: multi-touch musical keyboard control software
andrewm@0:   Copyright (c) 2013 Andrew McPherson
andrewm@0: 
andrewm@0:   This program is free software: you can redistribute it and/or modify
andrewm@0:   it under the terms of the GNU General Public License as published by
andrewm@0:   the Free Software Foundation, either version 3 of the License, or
andrewm@0:   (at your option) any later version.
andrewm@0:  
andrewm@0:   This program is distributed in the hope that it will be useful,
andrewm@0:   but WITHOUT ANY WARRANTY; without even the implied warranty of
andrewm@0:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
andrewm@0:   GNU General Public License for more details.
andrewm@0: 
andrewm@0:   You should have received a copy of the GNU General Public License
andrewm@0:   along with this program.  If not, see <http://www.gnu.org/licenses/>.
andrewm@0:  
andrewm@0:   =====================================================================
andrewm@0:  
andrewm@0:   LogPlayback.h: basic functions for playing back a recorded TouchKeys log.
andrewm@0: */
andrewm@0: 
andrewm@0: #ifndef __touchkeys__LogPlayback__
andrewm@0: #define __touchkeys__LogPlayback__
andrewm@0: 
andrewm@0: #include <iostream>
andrewm@0: #include <fstream>
andrewm@0: #include <vector>
andrewm@0: #include <boost/bind.hpp>
andrewm@0: #include "MidiInputController.h"
andrewm@0: #include "KeyTouchFrame.h"
andrewm@0: #include "PianoKeyboard.h"
andrewm@0: #include "../Utility/Scheduler.h"
andrewm@0: 
andrewm@0: using namespace std;
andrewm@0: 
andrewm@0: class LogPlayback {
andrewm@0: public:
andrewm@0:     // ***** Constructor and Destructor *****
andrewm@0:     LogPlayback(PianoKeyboard& keyboard, MidiInputController& midi);
andrewm@0:     
andrewm@0:     ~LogPlayback();
andrewm@0:     
andrewm@0:     // ***** Log File Playback *****
andrewm@0:     // File management
andrewm@0:     bool openLogFiles(string const& touchPath, string const& midiPath);
andrewm@0:     void closeLogFiles();
andrewm@0:     
andrewm@0:     // Start, stop, pause, resume
andrewm@0:     void startPlayback(timestamp_type startingTimestamp = 0);
andrewm@0:     void stopPlayback();
andrewm@0:     void pausePlayback();
andrewm@0:     void resumePlayback();
andrewm@0:     
andrewm@0:     // Seek to location and/or change the rate
andrewm@0:     void seekPlayback(timestamp_type newTimestamp);
andrewm@0:     void changePlaybackRate(float rate);
andrewm@0:     
andrewm@0:     // Scheduler action functions
andrewm@0:     timestamp_type nextTouchEvent();
andrewm@0:     timestamp_type nextMidiEvent();
andrewm@0:    
andrewm@0: private:
andrewm@0:     bool readNextTouchFrame();
andrewm@0:     bool readNextMidiFrame();
andrewm@0:     
andrewm@0: 	PianoKeyboard& keyboard_;	    // Main keyboard controller
andrewm@0:     MidiInputController& midiInputController_; // MIDI controller
andrewm@0:     Scheduler playbackScheduler_;   // Scheduler thread to send messages
andrewm@0:     Scheduler::action touchAction_; // Scheduler action for playing next touch
andrewm@0:     Scheduler::action midiAction_;  // Scheduler action for playing next MIDI event
andrewm@0:     
andrewm@0:     ifstream touchLog_;           // Log file for key touches
andrewm@0:     ifstream midiLog_;            // Log file for MIDI data
andrewm@0:     
andrewm@0:     bool open_;                   // Whether files are open
andrewm@0:     bool playing_;                // Whether playback is active
andrewm@0:     bool paused_;                 // Whether playback is active, but paused
andrewm@0:     bool usingTouch_, usingMidi_; // Whether touch and MIDI files are present
andrewm@0:     float playbackRate_;          // Current playback rate (default 1.0)
andrewm@0:     
andrewm@0:     KeyTouchFrame nextTouch_;     // Next touch frame to play
andrewm@0:     int nextTouchMidiNote_;       // MIDI note for next touch frame to play
andrewm@0:     timestamp_type nextTouchTimestamp_; // When the next touch happens
andrewm@0:     std::vector<unsigned char> nextMidi_;    // Next MIDI event to play
andrewm@0:     timestamp_type nextMidiTimestamp_;  // When the next MIDI event happens
andrewm@0:     timestamp_type lastMidiTimestamp_;  // When the last MIDI event happened
andrewm@0:     timestamp_type pauseTimestamp_;     // When the playback was paused
andrewm@0:     timestamp_diff_type timestampOffset_;   // Difference between file and current playback time
andrewm@0: };
andrewm@0: 
andrewm@0: #endif /* defined(__touchkeys__LogPlayback__) */