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#include "Click.h"
#include "MIDI.h"
#include "PCM.h"
#include "Timer.h"
#include "UI.h"
#include "config.h"
#include "log.h"
#include <chrono>
#include <cmath>
#include <cstdint>
#include <exception>
#include <iostream>
#include <limits>
#include <memory>
#include <stdexcept>
#include <stdio.h>
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
#include <signal.h>
#include <boost/signals2.hpp>
using namespace std::chrono_literals;
using namespace std::string_literals;
double diff_timespec(const struct timespec *time1, const struct timespec *time0) {
return (time1->tv_sec - time0->tv_sec)
+ (time1->tv_nsec - time0->tv_nsec) / 1000000000.0;
}
bool run_flag = true;
void signal_handler(int) {
run_flag = false;
std::cout << "Signal received. Terminating." << std::endl;
}
int main(void)
{
signal(SIGTERM, signal_handler);
signal(SIGINT, signal_handler);
try {
//debug_cout.activate();
log_cout.activate();
log_cout.log_lines(log_lines);
Config config;
std::shared_ptr<ClockClick> clock_click = std::make_shared<ClockClick>();
std::shared_ptr<NoteClick> note_click = std::make_shared<NoteClick>(config);
std::shared_ptr<InternalClick> internal_click = std::make_shared<InternalClick>(config);
MIDI midi;
PCM pcm;
UI ui(config);
pcm.write();
Timer timer_500ms(500ms, true);
timer_500ms.start();
Timer timer_10min(10min, true);
timer_10min.start();
// Main signals
boost::signals2::signal<void()> signal_count_loops;
//
// Signal-Slot Connections:
//
midi.signal_note.connect([&](int channel, int note, uint64_t timestamp){note_click->receive_note(channel, note, timestamp);});
note_click->signal_click.connect([&](){pcm.click();});
note_click->signal_bpm.connect([&](int bpm){ui.slot_note_bpm(bpm);});
clock_click->signal_bpm.connect([&](int bpm){ui.slot_clock_bpm(bpm);});
midi.signal_active_sensing.connect([&](){ui.slot_active_sensing();});
timer_500ms.elapsed.connect([&](){ui.draw();});
signal_count_loops.connect([&](){ui.count_main_loops();});
midi.signal_count_events.connect([&](){ui.count_midi_events();});
timer_10min.elapsed.connect([&](){config.persist();});
midi.signal_note.connect([&](int channel, int note, uint64_t timestamp){ui.slot_midi_note(channel, note, timestamp);});
midi.signal_clock.connect([&](){clock_click->receive_clock();});
midi.flush();
while (run_flag) {
debug_cout << "Main loop entered." << std::endl;
signal_count_loops();
fd_set read_set;
FD_ZERO(&read_set);
FD_SET(midi.fd(), &read_set);
#if 0
// PCM fd almost always writeable: for single frames at high speed
fd_set write_set;
FD_ZERO(&write_set);
FD_SET(pcm.fd(), &write_set);
#endif
struct timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = 20000;
int result = select(FD_SETSIZE, &read_set, nullptr/*&write_set*/, nullptr, &timeout);
if (result < 0) {
throw std::runtime_error("select() failed");
} else if (result == 0) {
debug_cout << "select() timeout" << std::endl;
}
while (midi.event_ready())
{
//std::cout << "read..." << std::endl;
auto event = midi.read();
//std::cout << "process..." << std::endl;
midi.process(event);
}
if (pcm.write_available()) {
//std::cout << "DEBUG: WRITE" << std::endl;
pcm.write();
}
// handle timers, TODO: make updates more efficient at scale
timer_500ms.update();
timer_10min.update();
}
} catch (const std::exception& ex) {
std::cerr << "Error: " << ex.what() << std::endl;
}
return 0;
}
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