xdg-desktop-portal-hyprland/include/timespec_util.h

#ifndef TIMESPEC_UTIL_H
#define TIMESPEC_UTIL_H

#include <time.h>
#include <stdbool.h>
#include <stdint.h>

#define TIMESPEC_NSEC_PER_SEC 1000000000L

void timespec_add(struct timespec *t, int64_t delta_ns);

bool timespec_less(struct timespec *t1, struct timespec *t2);

bool timespec_is_zero(struct timespec *t);

int64_t timespec_diff_ns(struct timespec *t1, struct timespec *t2);

#endif
Control how many frames are captured per second The goal is to control the rate of capture while in screencast, as it can represent a performance issue and can cause input lag and the feeling of having a laggy mouse. This commit addresses the issue reported in #66. The code measures the time elapsed to make a single screen capture, and calculates how much to wait for the next capture to achieve the targeted frame rate. To delay the capturing of the next frame, the code introduces timers into the event loop based on the event loop in https://github.com/emersion/mako Added a command-line argument and an entry in the config file as well for the max FPS. The default value is 0, meaning no rate control. Added code to measure the average FPS every 5 seconds and print it with DEBUG level. 2020-12-23 19:47:10 +01:00			`#ifndef TIMESPEC_UTIL_H`
			`#define TIMESPEC_UTIL_H`

			`#include <time.h>`
			`#include <stdbool.h>`
			`#include <stdint.h>`

			`#define TIMESPEC_NSEC_PER_SEC 1000000000L`

			`void timespec_add(struct timespec *t, int64_t delta_ns);`

			`bool timespec_less(struct timespec t1, struct timespec t2);`

			`bool timespec_is_zero(struct timespec *t);`

			`int64_t timespec_diff_ns(struct timespec t1, struct timespec t2);`

			`#endif`