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#pragma once
#include <atomic>
#include <memory>
#include <thread>
#include <vector>
class Audio;
class Database;
class VocalTrack;
/// performous engine
class Engine {
Audio& m_audio;
double m_time;
std::atomic<bool> m_quit{ false };
Database& m_database;
std::unique_ptr<std::thread> m_thread;
public:
typedef std::vector<VocalTrack*> VocalTrackPtrs;
static const double TIMESTEP; ///< The duration of one engine time step in seconds
/// Construct an engine thread with vocal tracks and players specified by parameters
Engine(Audio& audio, VocalTrackPtrs vocals, Database& database);
~Engine() { kill(); }
/// Terminates processing
void kill() {
m_quit = true;
if (m_thread->joinable()) m_thread->join();
}
/** Used internally for std::thread. Do not call this yourself. (std::thread requires this to be public). **/
void operator()();
};
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