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3d-gl
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better frame limit

This commit is contained in:
amy 2023-05-05 16:59:26 +00:00
parent 514793382e
commit 76f0b0acce
1 changed files with 25 additions and 8 deletions
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33
src/point.c
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@ -1,11 +1,11 @@
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#include "glfww.h"
#include "util.h"
#include <unistd.h>
#include <time.h>
typedef struct {
double x;
@ -863,8 +863,17 @@ int main(int argc,char*argv[]){
clock_t t;
double frames = 0;
t = clock();
for(;;){
double frame_limit = 100;
double single_frame = (float)1/frame_limit*1E+6;
char sf_time_msg[60];
sprintf(sf_time_msg,"%.3fµs per frame ≈ %.3ffps",single_frame,frame_limit);
info(sf_time_msg);
struct timespec start_t, end_t,tem_t2, tem_t;
clock_gettime(CLOCK_REALTIME, &start_t);
for(;;){
clock_gettime(CLOCK_REALTIME,&tem_t);
double p1 = plr_x*0.01;
double p2 = plr_y*0.01;
double p3 = 0;
@ -950,15 +959,23 @@ int main(int argc,char*argv[]){
pl_y+=sinf((half_max_r+plr_y)*0.01)*mul;
}
usleep(1000*1000/60);
glfw_clear(w);
if(single_frame>0){
clock_gettime(CLOCK_REALTIME,&tem_t2);
double tt2_diff = (tem_t2.tv_sec - tem_t.tv_sec) * 1000.0 +
(tem_t2.tv_nsec - tem_t.tv_nsec) / 1000000.0;
usleep(greater(single_frame - tt2_diff *1000,1));
}
glfw_clear(w);
if(glfwWindowShouldClose(w)||(glfwGetKey(w,GLFW_KEY_Q)))break;
frames+=1;
if(((double)clock() - t)/CLOCKS_PER_SEC > 1){
clock_gettime(CLOCK_REALTIME, &end_t);
double tt_diff = (end_t.tv_sec - start_t.tv_sec) * 1000.0 +
(end_t.tv_nsec - start_t.tv_nsec) / 1000000.0;
if(tt_diff>=1000){
printf("%f fps\n",frames);
frames=0;
t = clock();
clock_gettime(CLOCK_REALTIME,&start_t);
}
}
free(a->c);