scrcpy/app/src/fps_counter.h
Romain Vimont f6320c7e31 Wrap SDL thread functions into scrcpy-specific API
The goal is to expose a consistent API for system tools, and paves the
way to make the "core" independant of SDL in the future.
2021-02-17 09:54:03 +01:00

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;
uint32_t 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