scrcpy/app/src/fps_counter.h
Romain Vimont ec871dd3f5 Wrap tick API
This avoids to use the SDL timer API directly, and will allow to handle
generic ticks (possibly negative).
2021-07-14 14:22:32 +02:00

59 lines
1.2 KiB
C

#ifndef FPSCOUNTER_H
#define FPSCOUNTER_H
#include "common.h"
#include <stdatomic.h>
#include <stdbool.h>
#include <stdint.h>
#include "util/thread.h"
struct fps_counter {
sc_thread thread;
sc_mutex mutex;
sc_cond state_cond;
bool thread_started;
// atomic so that we can check without locking the mutex
// if the FPS counter is disabled, we don't want to lock unnecessarily
atomic_bool started;
// the following fields are protected by the mutex
bool interrupted;
unsigned nr_rendered;
unsigned nr_skipped;
sc_tick next_timestamp;
};
bool
fps_counter_init(struct fps_counter *counter);
void
fps_counter_destroy(struct fps_counter *counter);
bool
fps_counter_start(struct fps_counter *counter);
void
fps_counter_stop(struct fps_counter *counter);
bool
fps_counter_is_started(struct fps_counter *counter);
// request to stop the thread (on quit)
// must be called before fps_counter_join()
void
fps_counter_interrupt(struct fps_counter *counter);
void
fps_counter_join(struct fps_counter *counter);
void
fps_counter_add_rendered_frame(struct fps_counter *counter);
void
fps_counter_add_skipped_frame(struct fps_counter *counter);
#endif