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Harshit-Dhanwalkar 2026-05-13 22:18:22 +05:30
parent c766d23028
commit 02926a2623
13 changed files with 398 additions and 288 deletions
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src/timing.c Normal file
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#include "timing.h"
#include <errno.h>
#include <time.h>
static long frame_duration_ns = 0; // nanoseconds per frame
void timing_init(int fps) {
frame_duration_ns = 1000000000L / fps;
}
void timing_sleep(struct timespec *start_time) {
struct timespec end_time;
clock_gettime(CLOCK_MONOTONIC, &end_time);
long elapsed_ns = (end_time.tv_sec - start_time->tv_sec) * 1000000000L +
(end_time.tv_nsec - start_time->tv_nsec);
long sleep_ns = frame_duration_ns - elapsed_ns;
if (sleep_ns > 0) {
struct timespec ts = { sleep_ns / 1000000000L, sleep_ns % 1000000000L };
while (nanosleep(&ts, &ts) == -1 && errno == EINTR);
}
}